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kernel_linux
提交 7946ada3 编写于 作者: A Anton Altaparmakov
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Merge branch 'master' of /usr/src/ntfs-2.6/

上级 98b27036 3d80636a
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Documentation/connector/connector.txt
浏览文件 @ 7946ada3
......@@ -131,3 +131,47 @@ Netlink itself is not reliable protocol, that means that messages can
be lost due to memory pressure or process' receiving queue overflowed,
so caller is warned must be prepared. That is why struct cn_msg [main
connector's message header] contains u32 seq and u32 ack fields.
/*****************************************/
Userspace usage.
/*****************************************/
2.6.14 has a new netlink socket implementation, which by default does not
allow to send data to netlink groups other than 1.
So, if to use netlink socket (for example using connector)
with different group number userspace application must subscribe to
that group. It can be achieved by following pseudocode:
s = socket(PF_NETLINK, SOCK_DGRAM, NETLINK_CONNECTOR);
l_local.nl_family = AF_NETLINK;
l_local.nl_groups = 12345;
l_local.nl_pid = 0;
if (bind(s, (struct sockaddr *)&l_local, sizeof(struct sockaddr_nl)) == -1) {
perror("bind");
close(s);
return -1;
}
{
int on = l_local.nl_groups;
setsockopt(s, 270, 1, &on, sizeof(on));
}
Where 270 above is SOL_NETLINK, and 1 is a NETLINK_ADD_MEMBERSHIP socket
option. To drop multicast subscription one should call above socket option
with NETLINK_DROP_MEMBERSHIP parameter which is defined as 0.
2.6.14 netlink code only allows to select a group which is less or equal to
the maximum group number, which is used at netlink_kernel_create() time.
In case of connector it is CN_NETLINK_USERS + 0xf, so if you want to use
group number 12345, you must increment CN_NETLINK_USERS to that number.
Additional 0xf numbers are allocated to be used by non-in-kernel users.
Due to this limitation, group 0xffffffff does not work now, so one can
not use add/remove connector's group notifications, but as far as I know,
only cn_test.c test module used it.
Some work in netlink area is still being done, so things can be changed in
2.6.15 timeframe, if it will happen, documentation will be updated for that
kernel.
Documentation/dell_rbu.txt
浏览文件 @ 7946ada3
......@@ -35,6 +35,7 @@ The driver load creates the following directories under the /sys file system.
/sys/class/firmware/dell_rbu/data
/sys/devices/platform/dell_rbu/image_type
/sys/devices/platform/dell_rbu/data
/sys/devices/platform/dell_rbu/packet_size
The driver supports two types of update mechanism; monolithic and packetized.
These update mechanism depends upon the BIOS currently running on the system.
......@@ -47,8 +48,26 @@ By default the driver uses monolithic memory for the update type. This can be
changed to packets during the driver load time by specifying the load
parameter image_type=packet. This can also be changed later as below
echo packet > /sys/devices/platform/dell_rbu/image_type
Also echoing either mono ,packet or init in to image_type will free up the
memory allocated by the driver.
In packet update mode the packet size has to be given before any packets can
be downloaded. It is done as below
echo XXXX > /sys/devices/platform/dell_rbu/packet_size
In the packet update mechanism, the user neesd to create a new file having
packets of data arranged back to back. It can be done as follows
The user creates packets header, gets the chunk of the BIOS image and
placs it next to the packetheader; now, the packetheader + BIOS image chunk
added to geather should match the specified packet_size. This makes one
packet, the user needs to create more such packets out of the entire BIOS
image file and then arrange all these packets back to back in to one single
file.
This file is then copied to /sys/class/firmware/dell_rbu/data.
Once this file gets to the driver, the driver extracts packet_size data from
the file and spreads it accross the physical memory in contiguous packet_sized
space.
This method makes sure that all the packets get to the driver in a single operation.
In monolithic update the user simply get the BIOS image (.hdr file) and copies
to the data file as is without any change to the BIOS image itself.
Do the steps below to download the BIOS image.
1) echo 1 > /sys/class/firmware/dell_rbu/loading
......@@ -58,7 +77,10 @@ Do the steps below to download the BIOS image.
The /sys/class/firmware/dell_rbu/ entries will remain till the following is
done.
echo -1 > /sys/class/firmware/dell_rbu/loading.
Until this step is completed the drivr cannot be unloaded.
Until this step is completed the driver cannot be unloaded.
Also echoing either mono ,packet or init in to image_type will free up the
memory allocated by the driver.
If an user by accident executes steps 1 and 3 above without executing step 2;
it will make the /sys/class/firmware/dell_rbu/ entries to disappear.
The entries can be recreated by doing the following
......@@ -66,15 +88,11 @@ echo init > /sys/devices/platform/dell_rbu/image_type
NOTE: echoing init in image_type does not change it original value.
Also the driver provides /sys/devices/platform/dell_rbu/data readonly file to
read back the image downloaded. This is useful in case of packet update
mechanism where the above steps 1,2,3 will repeated for every packet.
By reading the /sys/devices/platform/dell_rbu/data file all packet data
downloaded can be verified in a single file.
The packets are arranged in this file one after the other in a FIFO order.
read back the image downloaded.
NOTE:
This driver requires a patch for firmware_class.c which has the addition
of request_firmware_nowait_nohotplug function to wortk
This driver requires a patch for firmware_class.c which has the modified
request_firmware_nowait function.
Also after updating the BIOS image an user mdoe application neeeds to execute
code which message the BIOS update request to the BIOS. So on the next reboot
the BIOS knows about the new image downloaded and it updates it self.
......
MAINTAINERS
浏览文件 @ 7946ada3
......@@ -1618,6 +1618,13 @@ M: vandrove@vc.cvut.cz
L: linux-fbdev-devel@lists.sourceforge.net
S: Maintained
MEGARAID SCSI DRIVERS
P: Neela Syam Kolli
M: Neela.Kolli@engenio.com
S: linux-scsi@vger.kernel.org
W: http://megaraid.lsilogic.com
S: Maintained
MEMORY TECHNOLOGY DEVICES
P: David Woodhouse
M: dwmw2@infradead.org
......
arch/arm/Makefile
浏览文件 @ 7946ada3
......@@ -53,7 +53,7 @@ tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9tdmi
tune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110
tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100
tune-$(CONFIG_CPU_XSCALE) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
tune-$(CONFIG_CPU_V6) :=-mtune=strongarm
tune-$(CONFIG_CPU_V6) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
# Need -Uarm for gcc < 3.x
CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
......
arch/arm/kernel/armksyms.c
浏览文件 @ 7946ada3
......@@ -45,8 +45,8 @@ extern void fp_enter(void);
#define EXPORT_SYMBOL_ALIAS(sym,orig) \
EXPORT_CRC_ALIAS(sym) \
const struct kernel_symbol __ksymtab_##sym \
__attribute__((section("__ksymtab"))) = \
static const struct kernel_symbol __ksymtab_##sym \
__attribute_used__ __attribute__((section("__ksymtab"))) = \
{ (unsigned long)&orig, #sym };
/*
......
arch/arm/kernel/entry-common.S
浏览文件 @ 7946ada3
......@@ -106,15 +106,10 @@ ENTRY(ret_from_fork)
.endm
.Larm700bug:
ldr r0, [sp, #S_PSR] @ Get calling cpsr
sub lr, lr, #4
str lr, [r8]
msr spsr_cxsf, r0
ldmia sp, {r0 - lr}^ @ Get calling r0 - lr
mov r0, r0
ldr lr, [sp, #S_PC] @ Get PC
add sp, sp, #S_FRAME_SIZE
movs pc, lr
subs pc, lr, #4
#else
.macro arm710_bug_check, instr, temp
.endm
......
arch/arm/kernel/vmlinux.lds.S
浏览文件 @ 7946ada3
......@@ -89,13 +89,6 @@ SECTIONS
*(.got) /* Global offset table */
}
. = ALIGN(16);
__ex_table : { /* Exception table */
__start___ex_table = .;
*(__ex_table)
__stop___ex_table = .;
}
RODATA
_etext = .; /* End of text and rodata section */
......@@ -137,6 +130,14 @@ SECTIONS
. = ALIGN(32);
*(.data.cacheline_aligned)
/*
* The exception fixup table (might need resorting at runtime)
*/
. = ALIGN(32);
__start___ex_table = .;
*(__ex_table)
__stop___ex_table = .;
/*
* and the usual data section
*/
......
arch/arm/mach-l7200/core.c
浏览文件 @ 7946ada3
......@@ -7,11 +7,17 @@
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/device.h>
#include <asm/types.h>
#include <asm/irq.h>
#include <asm/mach-types.h>
#include <asm/hardware.h>
#include <asm/page.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
/*
* IRQ base register
......@@ -48,6 +54,12 @@ static void l7200_unmask_irq(unsigned int irq)
IRQ_ENABLE = 1 << irq;
}
static struct irqchip l7200_irq_chip = {
.ack = l7200_mask_irq,
.mask = l7200_mask_irq,
.unmask = l7200_unmask_irq
};
static void __init l7200_init_irq(void)
{
int irq;
......@@ -56,11 +68,9 @@ static void __init l7200_init_irq(void)
FIQ_ENABLECLEAR = 0xffffffff; /* clear all fast interrupt enables */
for (irq = 0; irq < NR_IRQS; irq++) {
irq_desc[irq].valid = 1;
irq_desc[irq].probe_ok = 1;
irq_desc[irq].mask_ack = l7200_mask_irq;
irq_desc[irq].mask = l7200_mask_irq;
irq_desc[irq].unmask = l7200_unmask_irq;
set_irq_chip(irq, &l7200_irq_chip);
set_irq_flags(irq, IRQF_VALID);
set_irq_handler(irq, do_level_IRQ);
}
init_FIQ();
......
arch/arm/mach-pxa/corgi_lcd.c
浏览文件 @ 7946ada3
......@@ -467,6 +467,7 @@ void corgi_put_hsync(void)
{
if (get_hsync_time)
symbol_put(w100fb_get_hsynclen);
get_hsync_time = NULL;
}
void corgi_wait_hsync(void)
......@@ -476,20 +477,37 @@ void corgi_wait_hsync(void)
#endif
#ifdef CONFIG_PXA_SHARP_Cxx00
static struct device *spitz_pxafb_dev;
static int is_pxafb_device(struct device * dev, void * data)
{
struct platform_device *pdev = container_of(dev, struct platform_device, dev);
return (strncmp(pdev->name, "pxa2xx-fb", 9) == 0);
}
unsigned long spitz_get_hsync_len(void)
{
if (!spitz_pxafb_dev) {
spitz_pxafb_dev = bus_find_device(&platform_bus_type, NULL, NULL, is_pxafb_device);
if (!spitz_pxafb_dev)
return 0;
}
if (!get_hsync_time)
get_hsync_time = symbol_get(pxafb_get_hsync_time);
if (!get_hsync_time)
return 0;
return pxafb_get_hsync_time(&pxafb_device.dev);
return pxafb_get_hsync_time(spitz_pxafb_dev);
}
void spitz_put_hsync(void)
{
put_device(spitz_pxafb_dev);
if (get_hsync_time)
symbol_put(pxafb_get_hsync_time);
spitz_pxafb_dev = NULL;
get_hsync_time = NULL;
}
void spitz_wait_hsync(void)
......
arch/arm/mach-pxa/generic.c
浏览文件 @ 7946ada3
......@@ -208,6 +208,11 @@ static struct platform_device pxafb_device = {
.resource = pxafb_resources,
};
void __init set_pxa_fb_parent(struct device *parent_dev)
{
pxafb_device.dev.parent = parent_dev;
}
static struct platform_device ffuart_device = {
.name = "pxa2xx-uart",
.id = 0,
......
arch/arm/mach-pxa/spitz.c
浏览文件 @ 7946ada3
......@@ -36,7 +36,6 @@
#include <asm/arch/irq.h>
#include <asm/arch/mmc.h>
#include <asm/arch/udc.h>
#include <asm/arch/ohci.h>
#include <asm/arch/pxafb.h>
#include <asm/arch/akita.h>
#include <asm/arch/spitz.h>
......@@ -304,7 +303,6 @@ static struct platform_device *devices[] __initdata = {
&spitzkbd_device,
&spitzts_device,
&spitzbl_device,
&spitzbattery_device,
};
static void __init common_init(void)
......@@ -328,7 +326,7 @@ static void __init common_init(void)
platform_add_devices(devices, ARRAY_SIZE(devices));
pxa_set_mci_info(&spitz_mci_platform_data);
pxafb_device.dev.parent = &spitzssp_device.dev;
set_pxa_fb_parent(&spitzssp_device.dev);
set_pxa_fb_info(&spitz_pxafb_info);
}
......
arch/arm/mach-s3c2410/Kconfig
浏览文件 @ 7946ada3
......@@ -12,6 +12,7 @@ config MACH_ANUBIS
config ARCH_BAST
bool "Simtec Electronics BAST (EB2410ITX)"
select CPU_S3C2410
select ISA
help
Say Y here if you are using the Simtec Electronics EB2410ITX
development board (also known as BAST)
......
arch/arm/mach-s3c2410/mach-anubis.c
浏览文件 @ 7946ada3
......@@ -125,7 +125,7 @@ static int external_map[] = { 2 };
static int chip0_map[] = { 0 };
static int chip1_map[] = { 1 };
struct mtd_partition anubis_default_nand_part[] = {
static struct mtd_partition anubis_default_nand_part[] = {
[0] = {
.name = "Boot Agent",
.size = SZ_16K,
......
arch/arm/mach-s3c2410/mach-bast.c
浏览文件 @ 7946ada3
......@@ -230,7 +230,7 @@ static int chip0_map[] = { 1 };
static int chip1_map[] = { 2 };
static int chip2_map[] = { 3 };
struct mtd_partition bast_default_nand_part[] = {
static struct mtd_partition bast_default_nand_part[] = {
[0] = {
.name = "Boot Agent",
.size = SZ_16K,
......@@ -340,7 +340,7 @@ static struct resource bast_dm9k_resource[] = {
* better IO routines can be written and tested
*/
struct dm9000_plat_data bast_dm9k_platdata = {
static struct dm9000_plat_data bast_dm9k_platdata = {
.flags = DM9000_PLATF_16BITONLY
};
......
arch/arm/mach-s3c2410/mach-vr1000.c
浏览文件 @ 7946ada3
......@@ -288,7 +288,7 @@ static struct resource vr1000_dm9k1_resource[] = {
* better IO routines can be written and tested
*/
struct dm9000_plat_data vr1000_dm9k_platdata = {
static struct dm9000_plat_data vr1000_dm9k_platdata = {
.flags = DM9000_PLATF_16BITONLY,
};
......
arch/arm/mach-s3c2410/s3c2410.c
浏览文件 @ 7946ada3
......@@ -125,9 +125,6 @@ static struct platform_device *uart_devices[] __initdata = {
&s3c_uart2
};
/* store our uart devices for the serial driver console */
struct platform_device *s3c2410_uart_devices[3];
static int s3c2410_uart_count = 0;
/* uart registration process */
......
arch/arm/mach-s3c2410/s3c2440.c
浏览文件 @ 7946ada3
......@@ -151,7 +151,7 @@ void __init s3c2440_init_uarts(struct s3c2410_uartcfg *cfg, int no)
#ifdef CONFIG_PM
struct sleep_save s3c2440_sleep[] = {
static struct sleep_save s3c2440_sleep[] = {
SAVE_ITEM(S3C2440_DSC0),
SAVE_ITEM(S3C2440_DSC1),
SAVE_ITEM(S3C2440_GPJDAT),
......@@ -260,7 +260,7 @@ void __init s3c2440_init_clocks(int xtal)
* as a driver which may support both 2410 and 2440 may try and use it.
*/
int __init s3c2440_core_init(void)
static int __init s3c2440_core_init(void)
{
return sysdev_class_register(&s3c2440_sysclass);
}
......
arch/arm/mach-s3c2410/time.c
浏览文件 @ 7946ada3
......@@ -38,6 +38,7 @@
#include <asm/hardware/clock.h>
#include "clock.h"
#include "cpu.h"
static unsigned long timer_startval;
static unsigned long timer_usec_ticks;
......
arch/arm/mm/alignment.c
浏览文件 @ 7946ada3
......@@ -342,11 +342,11 @@ do_alignment_ldrdstrd(unsigned long addr, unsigned long instr,
unsigned long val;
get32_unaligned_check(val, addr);
regs->uregs[rd] = val;
get32_unaligned_check(val, addr+4);
regs->uregs[rd+1] = val;
get32_unaligned_check(val, addr + 4);
regs->uregs[rd + 1] = val;
} else {
put32_unaligned_check(regs->uregs[rd], addr);
put32_unaligned_check(regs->uregs[rd+1], addr+4);
put32_unaligned_check(regs->uregs[rd + 1], addr + 4);
}
return TYPE_LDST;
......@@ -356,11 +356,11 @@ do_alignment_ldrdstrd(unsigned long addr, unsigned long instr,
unsigned long val;
get32t_unaligned_check(val, addr);
regs->uregs[rd] = val;
get32t_unaligned_check(val, addr+4);
regs->uregs[rd+1] = val;
get32t_unaligned_check(val, addr + 4);
regs->uregs[rd + 1] = val;
} else {
put32t_unaligned_check(regs->uregs[rd], addr);
put32t_unaligned_check(regs->uregs[rd+1], addr+4);
put32t_unaligned_check(regs->uregs[rd + 1], addr + 4);
}
return TYPE_LDST;
......
arch/arm/nwfpe/fpa11.c
浏览文件 @ 7946ada3
......@@ -31,11 +31,6 @@
#include <linux/string.h>
#include <asm/system.h>
/* forward declarations */
unsigned int EmulateCPDO(const unsigned int);
unsigned int EmulateCPDT(const unsigned int);
unsigned int EmulateCPRT(const unsigned int);
/* Reset the FPA11 chip. Called to initialize and reset the emulator. */
static void resetFPA11(void)
{
......
arch/arm/nwfpe/fpa11.h
浏览文件 @ 7946ada3
......@@ -95,4 +95,24 @@ extern int8 SetRoundingMode(const unsigned int);
extern int8 SetRoundingPrecision(const unsigned int);
extern void nwfpe_init_fpa(union fp_state *fp);
extern unsigned int EmulateAll(unsigned int opcode);
extern unsigned int EmulateCPDT(const unsigned int opcode);
extern unsigned int EmulateCPDO(const unsigned int opcode);
extern unsigned int EmulateCPRT(const unsigned int opcode);
/* fpa11_cpdt.c */
extern unsigned int PerformLDF(const unsigned int opcode);
extern unsigned int PerformSTF(const unsigned int opcode);
extern unsigned int PerformLFM(const unsigned int opcode);
extern unsigned int PerformSFM(const unsigned int opcode);
/* single_cpdo.c */
extern unsigned int SingleCPDO(struct roundingData *roundData,
const unsigned int opcode, FPREG * rFd);
/* double_cpdo.c */
extern unsigned int DoubleCPDO(struct roundingData *roundData,
const unsigned int opcode, FPREG * rFd);
#endif
arch/arm/nwfpe/fpa11_cprt.c
浏览文件 @ 7946ada3
......@@ -26,12 +26,11 @@
#include "fpa11.inl"
#include "fpmodule.h"
#include "fpmodule.inl"
#include "softfloat.h"
#ifdef CONFIG_FPE_NWFPE_XP
extern flag floatx80_is_nan(floatx80);
#endif
extern flag float64_is_nan(float64);
extern flag float32_is_nan(float32);
unsigned int PerformFLT(const unsigned int opcode);
unsigned int PerformFIX(const unsigned int opcode);
......
arch/arm/nwfpe/fpopcode.h
浏览文件 @ 7946ada3
......@@ -476,4 +476,10 @@ static inline unsigned int getDestinationSize(const unsigned int opcode)
return (nRc);
}
extern unsigned int checkCondition(const unsigned int opcode,
const unsigned int ccodes);
extern const float64 float64Constant[];
extern const float32 float32Constant[];
#endif
arch/arm/nwfpe/softfloat.h
浏览文件 @ 7946ada3
......@@ -265,4 +265,7 @@ static inline flag float64_lt_nocheck(float64 a, float64 b)
return (a != b) && (aSign ^ (a < b));
}
extern flag float32_is_nan( float32 a );
extern flag float64_is_nan( float64 a );
#endif
arch/cris/arch-v32/kernel/smp.c
浏览文件 @ 7946ada3
......@@ -15,6 +15,7 @@
#include <linux/kernel.h>
#include <linux/cpumask.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#define IPI_SCHEDULE 1
#define IPI_CALL 2
......@@ -28,6 +29,7 @@ spinlock_t cris_atomic_locks[] = { [0 ... LOCK_COUNT - 1] = SPIN_LOCK_UNLOCKED};
/* CPU masks */
cpumask_t cpu_online_map = CPU_MASK_NONE;
cpumask_t phys_cpu_present_map = CPU_MASK_NONE;
EXPORT_SYMBOL(phys_cpu_present_map);
/* Variables used during SMP boot */
volatile int cpu_now_booting = 0;
......
arch/m32r/kernel/entry.S
浏览文件 @ 7946ada3
......@@ -681,6 +681,15 @@ ENTRY(debug_trap)
bl do_debug_trap
bra error_code
ENTRY(ill_trap)
/* void ill_trap(void) */
SWITCH_TO_KERNEL_STACK
SAVE_ALL
ldi r1, #0 ; error_code ; FIXME
mv r0, sp ; pt_regs
bl do_ill_trap
bra error_code
/* Cache flushing handler */
ENTRY(cache_flushing_handler)
......
arch/m32r/kernel/smp.c
浏览文件 @ 7946ada3
......@@ -275,12 +275,14 @@ static void flush_tlb_all_ipi(void *info)
*==========================================================================*/
void smp_flush_tlb_mm(struct mm_struct *mm)
{
int cpu_id = smp_processor_id();
int cpu_id;
cpumask_t cpu_mask;
unsigned long *mmc = &mm->context[cpu_id];
unsigned long *mmc;
unsigned long flags;
preempt_disable();
cpu_id = smp_processor_id();
mmc = &mm->context[cpu_id];
cpu_mask = mm->cpu_vm_mask;
cpu_clear(cpu_id, cpu_mask);
......@@ -343,12 +345,14 @@ void smp_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
void smp_flush_tlb_page(struct vm_area_struct *vma, unsigned long va)
{
struct mm_struct *mm = vma->vm_mm;
int cpu_id = smp_processor_id();
int cpu_id;
cpumask_t cpu_mask;
unsigned long *mmc = &mm->context[cpu_id];
unsigned long *mmc;
unsigned long flags;
preempt_disable();
cpu_id = smp_processor_id();
mmc = &mm->context[cpu_id];
cpu_mask = mm->cpu_vm_mask;
cpu_clear(cpu_id, cpu_mask);
......
arch/m32r/kernel/traps.c
浏览文件 @ 7946ada3
......@@ -5,8 +5,6 @@
* Hitoshi Yamamoto
*/
/* $Id$ */
/*
* 'traps.c' handles hardware traps and faults after we have saved some
* state in 'entry.S'.
......@@ -35,6 +33,7 @@ asmlinkage void ei_handler(void);
asmlinkage void rie_handler(void);
asmlinkage void debug_trap(void);
asmlinkage void cache_flushing_handler(void);
asmlinkage void ill_trap(void);
#ifdef CONFIG_SMP
extern void smp_reschedule_interrupt(void);
......@@ -77,22 +76,22 @@ void set_eit_vector_entries(void)
eit_vector[5] = BRA_INSN(default_eit_handler, 5);
eit_vector[8] = BRA_INSN(rie_handler, 8);
eit_vector[12] = BRA_INSN(alignment_check, 12);
eit_vector[16] = 0xff000000UL;
eit_vector[16] = BRA_INSN(ill_trap, 16);
eit_vector[17] = BRA_INSN(debug_trap, 17);
eit_vector[18] = BRA_INSN(system_call, 18);
eit_vector[19] = 0xff000000UL;
eit_vector[20] = 0xff000000UL;
eit_vector[21] = 0xff000000UL;
eit_vector[22] = 0xff000000UL;
eit_vector[23] = 0xff000000UL;
eit_vector[24] = 0xff000000UL;
eit_vector[25] = 0xff000000UL;
eit_vector[26] = 0xff000000UL;
eit_vector[27] = 0xff000000UL;
eit_vector[19] = BRA_INSN(ill_trap, 19);
eit_vector[20] = BRA_INSN(ill_trap, 20);
eit_vector[21] = BRA_INSN(ill_trap, 21);
eit_vector[22] = BRA_INSN(ill_trap, 22);
eit_vector[23] = BRA_INSN(ill_trap, 23);
eit_vector[24] = BRA_INSN(ill_trap, 24);
eit_vector[25] = BRA_INSN(ill_trap, 25);
eit_vector[26] = BRA_INSN(ill_trap, 26);
eit_vector[27] = BRA_INSN(ill_trap, 27);
eit_vector[28] = BRA_INSN(cache_flushing_handler, 28);
eit_vector[29] = 0xff000000UL;
eit_vector[30] = 0xff000000UL;
eit_vector[31] = 0xff000000UL;
eit_vector[29] = BRA_INSN(ill_trap, 29);
eit_vector[30] = BRA_INSN(ill_trap, 30);
eit_vector[31] = BRA_INSN(ill_trap, 31);
eit_vector[32] = BRA_INSN(ei_handler, 32);
eit_vector[64] = BRA_INSN(pie_handler, 64);
#ifdef CONFIG_MMU
......@@ -286,7 +285,8 @@ asmlinkage void do_##name(struct pt_regs * regs, long error_code) \
DO_ERROR( 1, SIGTRAP, "debug trap", debug_trap)
DO_ERROR_INFO(0x20, SIGILL, "reserved instruction ", rie_handler, ILL_ILLOPC, regs->bpc)
DO_ERROR_INFO(0x100, SIGILL, "privilege instruction", pie_handler, ILL_PRVOPC, regs->bpc)
DO_ERROR_INFO(0x100, SIGILL, "privileged instruction", pie_handler, ILL_PRVOPC, regs->bpc)
DO_ERROR_INFO(-1, SIGILL, "illegal trap", ill_trap, ILL_ILLTRP, regs->bpc)
extern int handle_unaligned_access(unsigned long, struct pt_regs *);
......@@ -329,4 +329,3 @@ asmlinkage void do_alignment_check(struct pt_regs *regs, long error_code)
set_fs(oldfs);
}
}
arch/mips/pci/fixup-tb0226.c
浏览文件 @ 7946ada3
/*
* fixup-tb0226.c, The TANBAC TB0226 specific PCI fixups.
*
* Copyright (C) 2002-2004 Yoichi Yuasa <yuasa@hh.iij4u.or.jp>
* Copyright (C) 2002-2005 Yoichi Yuasa <yuasa@hh.iij4u.or.jp>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
......@@ -20,6 +20,7 @@
#include <linux/init.h>
#include <linux/pci.h>
#include <asm/vr41xx/giu.h>
#include <asm/vr41xx/tb0226.h>
int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
......@@ -29,42 +30,42 @@ int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
switch (slot) {
case 12:
vr41xx_set_irq_trigger(GD82559_1_PIN,
TRIGGER_LEVEL,
SIGNAL_THROUGH);
vr41xx_set_irq_level(GD82559_1_PIN, LEVEL_LOW);
IRQ_TRIGGER_LEVEL,
IRQ_SIGNAL_THROUGH);
vr41xx_set_irq_level(GD82559_1_PIN, IRQ_LEVEL_LOW);
irq = GD82559_1_IRQ;
break;
case 13:
vr41xx_set_irq_trigger(GD82559_2_PIN,
TRIGGER_LEVEL,
SIGNAL_THROUGH);
vr41xx_set_irq_level(GD82559_2_PIN, LEVEL_LOW);
IRQ_TRIGGER_LEVEL,
IRQ_SIGNAL_THROUGH);
vr41xx_set_irq_level(GD82559_2_PIN, IRQ_LEVEL_LOW);
irq = GD82559_2_IRQ;
break;
case 14:
switch (pin) {
case 1:
vr41xx_set_irq_trigger(UPD720100_INTA_PIN,
TRIGGER_LEVEL,
SIGNAL_THROUGH);
IRQ_TRIGGER_LEVEL,
IRQ_SIGNAL_THROUGH);
vr41xx_set_irq_level(UPD720100_INTA_PIN,
LEVEL_LOW);
IRQ_LEVEL_LOW);
irq = UPD720100_INTA_IRQ;
break;
case 2:
vr41xx_set_irq_trigger(UPD720100_INTB_PIN,
TRIGGER_LEVEL,
SIGNAL_THROUGH);
IRQ_TRIGGER_LEVEL,
IRQ_SIGNAL_THROUGH);
vr41xx_set_irq_level(UPD720100_INTB_PIN,
LEVEL_LOW);
IRQ_LEVEL_LOW);
irq = UPD720100_INTB_IRQ;
break;
case 3:
vr41xx_set_irq_trigger(UPD720100_INTC_PIN,
TRIGGER_LEVEL,
SIGNAL_THROUGH);
IRQ_TRIGGER_LEVEL,
IRQ_SIGNAL_THROUGH);
vr41xx_set_irq_level(UPD720100_INTC_PIN,
LEVEL_LOW);
IRQ_LEVEL_LOW);
irq = UPD720100_INTC_IRQ;
break;
default:
......
arch/ppc/kernel/cputable.c
浏览文件 @ 7946ada3
......@@ -91,7 +91,7 @@ struct cpu_spec cpu_specs[] = {
.cpu_features = CPU_FTR_COMMON | CPU_FTR_601 |
CPU_FTR_HPTE_TABLE,
.cpu_user_features = COMMON_PPC | PPC_FEATURE_601_INSTR |
PPC_FEATURE_UNIFIED_CACHE,
PPC_FEATURE_UNIFIED_CACHE | PPC_FEATURE_NO_TB,
.icache_bsize = 32,
.dcache_bsize = 32,
.cpu_setup = __setup_cpu_601
......@@ -745,7 +745,8 @@ struct cpu_spec cpu_specs[] = {
.cpu_name = "403GCX",
.cpu_features = CPU_FTR_SPLIT_ID_CACHE |
CPU_FTR_USE_TB,
.cpu_user_features = PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU,
.cpu_user_features = PPC_FEATURE_32 |
PPC_FEATURE_HAS_MMU | PPC_FEATURE_NO_TB,
.icache_bsize = 16,
.dcache_bsize = 16,
},
......
arch/ppc/kernel/dma-mapping.c
浏览文件 @ 7946ada3
......@@ -401,10 +401,10 @@ EXPORT_SYMBOL(__dma_sync);
static inline void __dma_sync_page_highmem(struct page *page,
unsigned long offset, size_t size, int direction)
{
size_t seg_size = min((size_t)PAGE_SIZE, size) - offset;
size_t seg_size = min((size_t)(PAGE_SIZE - offset), size);
size_t cur_size = seg_size;
unsigned long flags, start, seg_offset = offset;
int nr_segs = PAGE_ALIGN(size + (PAGE_SIZE - offset))/PAGE_SIZE;
int nr_segs = 1 + ((size - seg_size) + PAGE_SIZE - 1)/PAGE_SIZE;
int seg_nr = 0;
local_irq_save(flags);
......
arch/ppc64/kernel/module.c
浏览文件 @ 7946ada3
......@@ -341,6 +341,19 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
*(unsigned long *)location = my_r2(sechdrs, me);
break;
case R_PPC64_TOC16:
/* Subtact TOC pointer */
value -= my_r2(sechdrs, me);
if (value + 0x8000 > 0xffff) {
printk("%s: bad TOC16 relocation (%lu)\n",
me->name, value);
return -ENOEXEC;
}
*((uint16_t *) location)
= (*((uint16_t *) location) & ~0xffff)
| (value & 0xffff);
break;
case R_PPC64_TOC16_DS:
/* Subtact TOC pointer */
value -= my_r2(sechdrs, me);
......
arch/ppc64/kernel/pSeries_pci.c
浏览文件 @ 7946ada3
......@@ -32,7 +32,7 @@
#include "pci.h"
static int __initdata s7a_workaround = -1;
static int __devinitdata s7a_workaround = -1;
#if 0
void pcibios_name_device(struct pci_dev *dev)
......@@ -60,7 +60,7 @@ void pcibios_name_device(struct pci_dev *dev)
DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pcibios_name_device);
#endif
static void __init check_s7a(void)
static void __devinit check_s7a(void)
{
struct device_node *root;
char *model;
......
arch/ppc64/kernel/pmac_setup.c
浏览文件 @ 7946ada3
......@@ -115,7 +115,7 @@ static void __pmac pmac_show_cpuinfo(struct seq_file *m)
/* find motherboard type */
seq_printf(m, "machine\t\t: ");
np = find_devices("device-tree");
np = of_find_node_by_path("/");
if (np != NULL) {
pp = (char *) get_property(np, "model", NULL);
if (pp != NULL)
......@@ -133,6 +133,7 @@ static void __pmac pmac_show_cpuinfo(struct seq_file *m)
}
seq_printf(m, "\n");
}
of_node_put(np);
} else
seq_printf(m, "PowerMac\n");
......
arch/sh/kernel/smp.c
浏览文件 @ 7946ada3
......@@ -22,6 +22,7 @@
#include <linux/time.h>
#include <linux/timex.h>
#include <linux/sched.h>
#include <linux/module.h>
#include <asm/atomic.h>
#include <asm/processor.h>
......@@ -39,6 +40,8 @@ struct sh_cpuinfo cpu_data[NR_CPUS];
extern void per_cpu_trap_init(void);
cpumask_t cpu_possible_map;
EXPORT_SYMBOL(cpu_possible_map);
cpumask_t cpu_online_map;
static atomic_t cpus_booted = ATOMIC_INIT(0);
......
arch/sparc/Kconfig
浏览文件 @ 7946ada3
......@@ -21,10 +21,6 @@ config GENERIC_ISA_DMA
bool
default y
config GENERIC_IOMAP
bool
default y
source "init/Kconfig"
menu "General machine setup"
......
arch/sparc/defconfig
浏览文件 @ 7946ada3
......@@ -5,7 +5,6 @@ CONFIG_MMU=y
CONFIG_UID16=y
CONFIG_HIGHMEM=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_IOMAP=y
#
# Code maturity level options
......
arch/sparc64/kernel/dtlb_base.S
浏览文件 @ 7946ada3
......@@ -53,19 +53,18 @@
* be guaranteed to be 0 ... mmu_context.h does guarantee this
* by only using 10 bits in the hwcontext value.
*/
#define CREATE_VPTE_OFFSET1(r1, r2)
#define CREATE_VPTE_OFFSET1(r1, r2) nop
#define CREATE_VPTE_OFFSET2(r1, r2) \
srax r1, 10, r2
#define CREATE_VPTE_NOP nop
#else
#define CREATE_VPTE_OFFSET1(r1, r2) \
srax r1, PAGE_SHIFT, r2
#define CREATE_VPTE_OFFSET2(r1, r2) \
sllx r2, 3, r2
#define CREATE_VPTE_NOP
#endif
/* DTLB ** ICACHE line 1: Quick user TLB misses */
mov TLB_SFSR, %g1
ldxa [%g1 + %g1] ASI_DMMU, %g4 ! Get TAG_ACCESS
andcc %g4, TAG_CONTEXT_BITS, %g0 ! From Nucleus?
from_tl1_trap:
......@@ -74,18 +73,16 @@ from_tl1_trap:
be,pn %xcc, kvmap ! Yep, special processing
CREATE_VPTE_OFFSET2(%g4, %g6) ! Create VPTE offset
cmp %g5, 4 ! Last trap level?
be,pn %xcc, longpath ! Yep, cannot risk VPTE miss
nop ! delay slot
/* DTLB ** ICACHE line 2: User finish + quick kernel TLB misses */
be,pn %xcc, longpath ! Yep, cannot risk VPTE miss
nop ! delay slot
ldxa [%g3 + %g6] ASI_S, %g5 ! Load VPTE
1: brgez,pn %g5, longpath ! Invalid, branch out
nop ! Delay-slot
9: stxa %g5, [%g0] ASI_DTLB_DATA_IN ! Reload TLB
retry ! Trap return
nop
nop
nop
/* DTLB ** ICACHE line 3: winfixups+real_faults */
longpath:
......@@ -106,8 +103,7 @@ longpath:
nop
nop
nop
CREATE_VPTE_NOP
nop
#undef CREATE_VPTE_OFFSET1
#undef CREATE_VPTE_OFFSET2
#undef CREATE_VPTE_NOP
arch/sparc64/kernel/dtlb_prot.S
浏览文件 @ 7946ada3
......@@ -14,14 +14,14 @@
*/
/* PROT ** ICACHE line 1: User DTLB protection trap */
stxa %g0, [%g1] ASI_DMMU ! Clear SFSR FaultValid bit
membar #Sync ! Synchronize ASI stores
rdpr %pstate, %g5 ! Move into alternate globals
mov TLB_SFSR, %g1
stxa %g0, [%g1] ASI_DMMU ! Clear FaultValid bit
membar #Sync ! Synchronize stores
rdpr %pstate, %g5 ! Move into alt-globals
wrpr %g5, PSTATE_AG|PSTATE_MG, %pstate
rdpr %tl, %g1 ! Need to do a winfixup?
rdpr %tl, %g1 ! Need a winfixup?
cmp %g1, 1 ! Trap level >1?
mov TLB_TAG_ACCESS, %g4 ! Prepare reload of vaddr
nop
mov TLB_TAG_ACCESS, %g4 ! For reload of vaddr
/* PROT ** ICACHE line 2: More real fault processing */
bgu,pn %xcc, winfix_trampoline ! Yes, perform winfixup
......
arch/sparc64/kernel/head.S
浏览文件 @ 7946ada3
......@@ -28,19 +28,14 @@
#include <asm/mmu.h>
/* This section from from _start to sparc64_boot_end should fit into
* 0x0000.0000.0040.4000 to 0x0000.0000.0040.8000 and will be sharing space
* with bootup_user_stack, which is from 0x0000.0000.0040.4000 to
* 0x0000.0000.0040.6000 and empty_bad_page, which is from
* 0x0000.0000.0040.6000 to 0x0000.0000.0040.8000.
* 0x0000000000404000 to 0x0000000000408000.
*/
.text
.globl start, _start, stext, _stext
_start:
start:
_stext:
stext:
bootup_user_stack:
! 0x0000000000404000
b sparc64_boot
flushw /* Flush register file. */
......@@ -191,8 +186,9 @@ prom_boot_mapping_phys_low:
stx %l3, [%sp + 2047 + 128 + 0x10] ! num_rets, 5
stx %l2, [%sp + 2047 + 128 + 0x18] ! arg1: "translate"
stx %l5, [%sp + 2047 + 128 + 0x20] ! arg2: prom_mmu_ihandle_cache
srlx %l0, 22, %l3
sllx %l3, 22, %l3
/* PAGE align */
srlx %l0, 13, %l3
sllx %l3, 13, %l3
stx %l3, [%sp + 2047 + 128 + 0x28] ! arg3: vaddr, our PC
stx %g0, [%sp + 2047 + 128 + 0x30] ! res1
stx %g0, [%sp + 2047 + 128 + 0x38] ! res2
......@@ -211,6 +207,9 @@ prom_boot_mapping_phys_low:
ldx [%sp + 2047 + 128 + 0x48], %l2 ! physaddr high
stx %l2, [%l4 + 0x0]
ldx [%sp + 2047 + 128 + 0x50], %l3 ! physaddr low
/* 4MB align */
srlx %l3, 22, %l3
sllx %l3, 22, %l3
stx %l3, [%l4 + 0x8]
/* Leave service as-is, "call-method" */
......@@ -388,31 +387,30 @@ tlb_fixup_done:
* former does use this code, the latter does not yet due
* to some complexities. That should be fixed up at some
* point.
*
* There used to be enormous complexity wrt. transferring
* over from the firwmare's trap table to the Linux kernel's.
* For example, there was a chicken & egg problem wrt. building
* the OBP page tables, yet needing to be on the Linux kernel
* trap table (to translate PAGE_OFFSET addresses) in order to
* do that.
*
* We now handle OBP tlb misses differently, via linear lookups
* into the prom_trans[] array. So that specific problem no
* longer exists. Yet, unfortunately there are still some issues
* preventing trampoline.S from using this code... ho hum.
*/
.globl setup_trap_table
setup_trap_table:
save %sp, -192, %sp
/* Force interrupts to be disabled. Transferring over to
* the Linux trap table is a very delicate operation.
* Until we are actually on the Linux trap table, we cannot
* get the PAGE_OFFSET linear mappings translated. We need
* that mapping to be setup in order to initialize the firmware
* page tables.
*
* So there is this window of time, from the return from
* prom_set_trap_table() until inherit_prom_mappings_post()
* (in arch/sparc64/mm/init.c) completes, during which no
* firmware address space accesses can be made.
*/
/* Force interrupts to be disabled. */
rdpr %pstate, %o1
andn %o1, PSTATE_IE, %o1
wrpr %o1, 0x0, %pstate
wrpr %g0, 15, %pil
/* Ok, now make the final valid firmware call to jump over
* to the Linux trap table.
*/
/* Make the firmware call to jump over to the Linux trap table. */
call prom_set_trap_table
sethi %hi(sparc64_ttable_tl0), %o0
......@@ -536,15 +534,21 @@ setup_tba: /* i0 = is_starfire */
ret
restore
sparc64_boot_end:
#include "systbls.S"
#include "ktlb.S"
#include "etrap.S"
#include "rtrap.S"
#include "winfixup.S"
#include "entry.S"
/*
* The following skips make sure the trap table in ttable.S is aligned
* The following skip makes sure the trap table in ttable.S is aligned
* on a 32K boundary as required by the v9 specs for TBA register.
*/
sparc64_boot_end:
.skip 0x2000 + _start - sparc64_boot_end
bootup_user_stack_end:
.skip 0x2000
1:
.skip 0x4000 + _start - 1b
#ifdef CONFIG_SBUS
/* This is just a hack to fool make depend config.h discovering
......@@ -556,15 +560,6 @@ bootup_user_stack_end:
! 0x0000000000408000
#include "ttable.S"
#include "systbls.S"
#include "ktlb.S"
#include "etrap.S"
#include "rtrap.S"
#include "winfixup.S"
#include "entry.S"
/* This is just anal retentiveness on my part... */
.align 16384
.data
.align 8
......
arch/sparc64/kernel/itlb_base.S
浏览文件 @ 7946ada3
......@@ -15,14 +15,12 @@
*/
#define CREATE_VPTE_OFFSET1(r1, r2) \
srax r1, 10, r2
#define CREATE_VPTE_OFFSET2(r1, r2)
#define CREATE_VPTE_NOP nop
#define CREATE_VPTE_OFFSET2(r1, r2) nop
#else /* PAGE_SHIFT */
#define CREATE_VPTE_OFFSET1(r1, r2) \
srax r1, PAGE_SHIFT, r2
#define CREATE_VPTE_OFFSET2(r1, r2) \
sllx r2, 3, r2
#define CREATE_VPTE_NOP
#endif /* PAGE_SHIFT */
......@@ -36,6 +34,7 @@
*/
/* ITLB ** ICACHE line 1: Quick user TLB misses */
mov TLB_SFSR, %g1
ldxa [%g1 + %g1] ASI_IMMU, %g4 ! Get TAG_ACCESS
CREATE_VPTE_OFFSET1(%g4, %g6) ! Create VPTE offset
CREATE_VPTE_OFFSET2(%g4, %g6) ! Create VPTE offset
......@@ -43,41 +42,38 @@
1: brgez,pn %g5, 3f ! Not valid, branch out
sethi %hi(_PAGE_EXEC), %g4 ! Delay-slot
andcc %g5, %g4, %g0 ! Executable?
/* ITLB ** ICACHE line 2: Real faults */
be,pn %xcc, 3f ! Nope, branch.
nop ! Delay-slot
2: stxa %g5, [%g0] ASI_ITLB_DATA_IN ! Load PTE into TLB
retry ! Trap return
3: rdpr %pstate, %g4 ! Move into alternate globals
/* ITLB ** ICACHE line 2: Real faults */
3: rdpr %pstate, %g4 ! Move into alt-globals
wrpr %g4, PSTATE_AG|PSTATE_MG, %pstate
rdpr %tpc, %g5 ! And load faulting VA
mov FAULT_CODE_ITLB, %g4 ! It was read from ITLB
sparc64_realfault_common: ! Called by TL0 dtlb_miss too
/* ITLB ** ICACHE line 3: Finish faults */
sparc64_realfault_common: ! Called by dtlb_miss
stb %g4, [%g6 + TI_FAULT_CODE]
stx %g5, [%g6 + TI_FAULT_ADDR]
ba,pt %xcc, etrap ! Save state
1: rd %pc, %g7 ! ...
nop
/* ITLB ** ICACHE line 3: Finish faults + window fixups */
call do_sparc64_fault ! Call fault handler
add %sp, PTREGS_OFF, %o0! Compute pt_regs arg
ba,pt %xcc, rtrap_clr_l6 ! Restore cpu state
nop
/* ITLB ** ICACHE line 4: Window fixups */
winfix_trampoline:
rdpr %tpc, %g3 ! Prepare winfixup TNPC
or %g3, 0x7c, %g3 ! Compute offset to branch
or %g3, 0x7c, %g3 ! Compute branch offset
wrpr %g3, %tnpc ! Write it into TNPC
done ! Do it to it
/* ITLB ** ICACHE line 4: Unused... */
nop
nop
nop
nop
CREATE_VPTE_NOP
#undef CREATE_VPTE_OFFSET1
#undef CREATE_VPTE_OFFSET2
#undef CREATE_VPTE_NOP
arch/sparc64/kernel/ktlb.S
浏览文件 @ 7946ada3
......@@ -58,9 +58,6 @@ vpte_noent:
done
vpte_insn_obp:
sethi %hi(prom_pmd_phys), %g5
ldx [%g5 + %lo(prom_pmd_phys)], %g5
/* Behave as if we are at TL0. */
wrpr %g0, 1, %tl
rdpr %tpc, %g4 /* Find original faulting iaddr */
......@@ -71,58 +68,57 @@ vpte_insn_obp:
mov TLB_SFSR, %g1
stxa %g4, [%g1 + %g1] ASI_IMMU
/* Get PMD offset. */
srlx %g4, 23, %g6
and %g6, 0x7ff, %g6
sllx %g6, 2, %g6
/* Load PMD, is it valid? */
lduwa [%g5 + %g6] ASI_PHYS_USE_EC, %g5
brz,pn %g5, longpath
sllx %g5, 11, %g5
/* Get PTE offset. */
srlx %g4, 13, %g6
and %g6, 0x3ff, %g6
sllx %g6, 3, %g6
/* Load PTE. */
ldxa [%g5 + %g6] ASI_PHYS_USE_EC, %g5
brgez,pn %g5, longpath
nop
/* TLB load and return from trap. */
sethi %hi(prom_trans), %g5
or %g5, %lo(prom_trans), %g5
1: ldx [%g5 + 0x00], %g6 ! base
brz,a,pn %g6, longpath ! no more entries, fail
mov TLB_SFSR, %g1 ! and restore %g1
ldx [%g5 + 0x08], %g1 ! len
add %g6, %g1, %g1 ! end
cmp %g6, %g4
bgu,pt %xcc, 2f
cmp %g4, %g1
bgeu,pt %xcc, 2f
ldx [%g5 + 0x10], %g1 ! PTE
/* TLB load, restore %g1, and return from trap. */
sub %g4, %g6, %g6
add %g1, %g6, %g5
mov TLB_SFSR, %g1
stxa %g5, [%g0] ASI_ITLB_DATA_IN
retry
kvmap_do_obp:
sethi %hi(prom_pmd_phys), %g5
ldx [%g5 + %lo(prom_pmd_phys)], %g5
/* Get PMD offset. */
srlx %g4, 23, %g6
and %g6, 0x7ff, %g6
sllx %g6, 2, %g6
2: ba,pt %xcc, 1b
add %g5, (3 * 8), %g5 ! next entry
/* Load PMD, is it valid? */
lduwa [%g5 + %g6] ASI_PHYS_USE_EC, %g5
brz,pn %g5, longpath
sllx %g5, 11, %g5
/* Get PTE offset. */
srlx %g4, 13, %g6
and %g6, 0x3ff, %g6
sllx %g6, 3, %g6
/* Load PTE. */
ldxa [%g5 + %g6] ASI_PHYS_USE_EC, %g5
brgez,pn %g5, longpath
nop
/* TLB load and return from trap. */
kvmap_do_obp:
sethi %hi(prom_trans), %g5
or %g5, %lo(prom_trans), %g5
srlx %g4, 13, %g4
sllx %g4, 13, %g4
1: ldx [%g5 + 0x00], %g6 ! base
brz,a,pn %g6, longpath ! no more entries, fail
mov TLB_SFSR, %g1 ! and restore %g1
ldx [%g5 + 0x08], %g1 ! len
add %g6, %g1, %g1 ! end
cmp %g6, %g4
bgu,pt %xcc, 2f
cmp %g4, %g1
bgeu,pt %xcc, 2f
ldx [%g5 + 0x10], %g1 ! PTE
/* TLB load, restore %g1, and return from trap. */
sub %g4, %g6, %g6
add %g1, %g6, %g5
mov TLB_SFSR, %g1
stxa %g5, [%g0] ASI_DTLB_DATA_IN
retry
2: ba,pt %xcc, 1b
add %g5, (3 * 8), %g5 ! next entry
/*
* On a first level data miss, check whether this is to the OBP range (note
* that such accesses can be made by prom, as well as by kernel using
......
arch/sparc64/kernel/pci_iommu.c
浏览文件 @ 7946ada3
......@@ -49,12 +49,6 @@ static void __iommu_flushall(struct pci_iommu *iommu)
/* Ensure completion of previous PIO writes. */
(void) pci_iommu_read(iommu->write_complete_reg);
/* Now update everyone's flush point. */
for (entry = 0; entry < PBM_NCLUSTERS; entry++) {
iommu->alloc_info[entry].flush =
iommu->alloc_info[entry].next;
}
}
#define IOPTE_CONSISTENT(CTX) \
......@@ -80,120 +74,117 @@ static void inline iopte_make_dummy(struct pci_iommu *iommu, iopte_t *iopte)
iopte_val(*iopte) = val;
}
void pci_iommu_table_init(struct pci_iommu *iommu, int tsbsize)
{
int i;
tsbsize /= sizeof(iopte_t);
for (i = 0; i < tsbsize; i++)
iopte_make_dummy(iommu, &iommu->page_table[i]);
}
static iopte_t *alloc_streaming_cluster(struct pci_iommu *iommu, unsigned long npages)
/* Based largely upon the ppc64 iommu allocator. */
static long pci_arena_alloc(struct pci_iommu *iommu, unsigned long npages)
{
iopte_t *iopte, *limit, *first;
unsigned long cnum, ent, flush_point;
cnum = 0;
while ((1UL << cnum) < npages)
cnum++;
iopte = (iommu->page_table +
(cnum << (iommu->page_table_sz_bits - PBM_LOGCLUSTERS)));
if (cnum == 0)
limit = (iommu->page_table +
iommu->lowest_consistent_map);
else
limit = (iopte +
(1 << (iommu->page_table_sz_bits - PBM_LOGCLUSTERS)));
iopte += ((ent = iommu->alloc_info[cnum].next) << cnum);
flush_point = iommu->alloc_info[cnum].flush;
first = iopte;
for (;;) {
if (IOPTE_IS_DUMMY(iommu, iopte)) {
if ((iopte + (1 << cnum)) >= limit)
ent = 0;
else
ent = ent + 1;
iommu->alloc_info[cnum].next = ent;
if (ent == flush_point)
struct pci_iommu_arena *arena = &iommu->arena;
unsigned long n, i, start, end, limit;
int pass;
limit = arena->limit;
start = arena->hint;
pass = 0;
again:
n = find_next_zero_bit(arena->map, limit, start);
end = n + npages;
if (unlikely(end >= limit)) {
if (likely(pass < 1)) {
limit = start;
start = 0;
__iommu_flushall(iommu);
break;
pass++;
goto again;
} else {
/* Scanned the whole thing, give up. */
return -1;
}
iopte += (1 << cnum);
ent++;
if (iopte >= limit) {
iopte = (iommu->page_table +
(cnum <<
(iommu->page_table_sz_bits - PBM_LOGCLUSTERS)));
ent = 0;
}
if (ent == flush_point)
__iommu_flushall(iommu);
if (iopte == first)
goto bad;
for (i = n; i < end; i++) {
if (test_bit(i, arena->map)) {
start = i + 1;
goto again;
}
}
/* I've got your streaming cluster right here buddy boy... */
return iopte;
for (i = n; i < end; i++)
__set_bit(i, arena->map);
bad:
printk(KERN_EMERG "pci_iommu: alloc_streaming_cluster of npages(%ld) failed!\n",
npages);
return NULL;
arena->hint = end;
return n;
}
static void free_streaming_cluster(struct pci_iommu *iommu, dma_addr_t base,
unsigned long npages, unsigned long ctx)
static void pci_arena_free(struct pci_iommu_arena *arena, unsigned long base, unsigned long npages)
{
unsigned long cnum, ent;
cnum = 0;
while ((1UL << cnum) < npages)
cnum++;
ent = (base << (32 - IO_PAGE_SHIFT + PBM_LOGCLUSTERS - iommu->page_table_sz_bits))
>> (32 + PBM_LOGCLUSTERS + cnum - iommu->page_table_sz_bits);
unsigned long i;
/* If the global flush might not have caught this entry,
* adjust the flush point such that we will flush before
* ever trying to reuse it.
*/
#define between(X,Y,Z) (((Z) - (Y)) >= ((X) - (Y)))
if (between(ent, iommu->alloc_info[cnum].next, iommu->alloc_info[cnum].flush))
iommu->alloc_info[cnum].flush = ent;
#undef between
for (i = base; i < (base + npages); i++)
__clear_bit(i, arena->map);
}
/* We allocate consistent mappings from the end of cluster zero. */
static iopte_t *alloc_consistent_cluster(struct pci_iommu *iommu, unsigned long npages)
void pci_iommu_table_init(struct pci_iommu *iommu, int tsbsize, u32 dma_offset, u32 dma_addr_mask)
{
iopte_t *iopte;
unsigned long i, tsbbase, order, sz, num_tsb_entries;
iopte = iommu->page_table + (1 << (iommu->page_table_sz_bits - PBM_LOGCLUSTERS));
while (iopte > iommu->page_table) {
iopte--;
if (IOPTE_IS_DUMMY(iommu, iopte)) {
unsigned long tmp = npages;
num_tsb_entries = tsbsize / sizeof(iopte_t);
while (--tmp) {
iopte--;
if (!IOPTE_IS_DUMMY(iommu, iopte))
break;
}
if (tmp == 0) {
u32 entry = (iopte - iommu->page_table);
/* Setup initial software IOMMU state. */
spin_lock_init(&iommu->lock);
iommu->ctx_lowest_free = 1;
iommu->page_table_map_base = dma_offset;
iommu->dma_addr_mask = dma_addr_mask;
if (entry < iommu->lowest_consistent_map)
iommu->lowest_consistent_map = entry;
return iopte;
/* Allocate and initialize the free area map. */
sz = num_tsb_entries / 8;
sz = (sz + 7UL) & ~7UL;
iommu->arena.map = kmalloc(sz, GFP_KERNEL);
if (!iommu->arena.map) {
prom_printf("PCI_IOMMU: Error, kmalloc(arena.map) failed.\n");
prom_halt();
}
memset(iommu->arena.map, 0, sz);
iommu->arena.limit = num_tsb_entries;
/* Allocate and initialize the dummy page which we
* set inactive IO PTEs to point to.
*/
iommu->dummy_page = __get_free_pages(GFP_KERNEL, 0);
if (!iommu->dummy_page) {
prom_printf("PCI_IOMMU: Error, gfp(dummy_page) failed.\n");
prom_halt();
}
memset((void *)iommu->dummy_page, 0, PAGE_SIZE);
iommu->dummy_page_pa = (unsigned long) __pa(iommu->dummy_page);
/* Now allocate and setup the IOMMU page table itself. */
order = get_order(tsbsize);
tsbbase = __get_free_pages(GFP_KERNEL, order);
if (!tsbbase) {
prom_printf("PCI_IOMMU: Error, gfp(tsb) failed.\n");
prom_halt();
}
iommu->page_table = (iopte_t *)tsbbase;
for (i = 0; i < num_tsb_entries; i++)
iopte_make_dummy(iommu, &iommu->page_table[i]);
}
static inline iopte_t *alloc_npages(struct pci_iommu *iommu, unsigned long npages)
{
long entry;
entry = pci_arena_alloc(iommu, npages);
if (unlikely(entry < 0))
return NULL;
return iommu->page_table + entry;
}
static inline void free_npages(struct pci_iommu *iommu, dma_addr_t base, unsigned long npages)
{
pci_arena_free(&iommu->arena, base >> IO_PAGE_SHIFT, npages);
}
static int iommu_alloc_ctx(struct pci_iommu *iommu)
......@@ -233,7 +224,7 @@ void *pci_alloc_consistent(struct pci_dev *pdev, size_t size, dma_addr_t *dma_ad
struct pcidev_cookie *pcp;
struct pci_iommu *iommu;
iopte_t *iopte;
unsigned long flags, order, first_page, ctx;
unsigned long flags, order, first_page;
void *ret;
int npages;
......@@ -251,9 +242,10 @@ void *pci_alloc_consistent(struct pci_dev *pdev, size_t size, dma_addr_t *dma_ad
iommu = pcp->pbm->iommu;
spin_lock_irqsave(&iommu->lock, flags);
iopte = alloc_consistent_cluster(iommu, size >> IO_PAGE_SHIFT);
if (iopte == NULL) {
iopte = alloc_npages(iommu, size >> IO_PAGE_SHIFT);
spin_unlock_irqrestore(&iommu->lock, flags);
if (unlikely(iopte == NULL)) {
free_pages(first_page, order);
return NULL;
}
......@@ -262,31 +254,15 @@ void *pci_alloc_consistent(struct pci_dev *pdev, size_t size, dma_addr_t *dma_ad
((iopte - iommu->page_table) << IO_PAGE_SHIFT));
ret = (void *) first_page;
npages = size >> IO_PAGE_SHIFT;
ctx = 0;
if (iommu->iommu_ctxflush)
ctx = iommu_alloc_ctx(iommu);
first_page = __pa(first_page);
while (npages--) {
iopte_val(*iopte) = (IOPTE_CONSISTENT(ctx) |
iopte_val(*iopte) = (IOPTE_CONSISTENT(0UL) |
IOPTE_WRITE |
(first_page & IOPTE_PAGE));
iopte++;
first_page += IO_PAGE_SIZE;
}
{
int i;
u32 daddr = *dma_addrp;
npages = size >> IO_PAGE_SHIFT;
for (i = 0; i < npages; i++) {
pci_iommu_write(iommu->iommu_flush, daddr);
daddr += IO_PAGE_SIZE;
}
}
spin_unlock_irqrestore(&iommu->lock, flags);
return ret;
}
......@@ -296,7 +272,7 @@ void pci_free_consistent(struct pci_dev *pdev, size_t size, void *cpu, dma_addr_
struct pcidev_cookie *pcp;
struct pci_iommu *iommu;
iopte_t *iopte;
unsigned long flags, order, npages, i, ctx;
unsigned long flags, order, npages;
npages = IO_PAGE_ALIGN(size) >> IO_PAGE_SHIFT;
pcp = pdev->sysdata;
......@@ -306,46 +282,7 @@ void pci_free_consistent(struct pci_dev *pdev, size_t size, void *cpu, dma_addr_
spin_lock_irqsave(&iommu->lock, flags);
if ((iopte - iommu->page_table) ==
iommu->lowest_consistent_map) {
iopte_t *walk = iopte + npages;
iopte_t *limit;
limit = (iommu->page_table +
(1 << (iommu->page_table_sz_bits - PBM_LOGCLUSTERS)));
while (walk < limit) {
if (!IOPTE_IS_DUMMY(iommu, walk))
break;
walk++;
}
iommu->lowest_consistent_map =
(walk - iommu->page_table);
}
/* Data for consistent mappings cannot enter the streaming
* buffers, so we only need to update the TSB. We flush
* the IOMMU here as well to prevent conflicts with the
* streaming mapping deferred tlb flush scheme.
*/
ctx = 0;
if (iommu->iommu_ctxflush)
ctx = (iopte_val(*iopte) & IOPTE_CONTEXT) >> 47UL;
for (i = 0; i < npages; i++, iopte++)
iopte_make_dummy(iommu, iopte);
if (iommu->iommu_ctxflush) {
pci_iommu_write(iommu->iommu_ctxflush, ctx);
} else {
for (i = 0; i < npages; i++) {
u32 daddr = dvma + (i << IO_PAGE_SHIFT);
pci_iommu_write(iommu->iommu_flush, daddr);
}
}
iommu_free_ctx(iommu, ctx);
free_npages(iommu, dvma, npages);
spin_unlock_irqrestore(&iommu->lock, flags);
......@@ -372,25 +309,27 @@ dma_addr_t pci_map_single(struct pci_dev *pdev, void *ptr, size_t sz, int direct
iommu = pcp->pbm->iommu;
strbuf = &pcp->pbm->stc;
if (direction == PCI_DMA_NONE)
BUG();
if (unlikely(direction == PCI_DMA_NONE))
goto bad_no_ctx;
oaddr = (unsigned long)ptr;
npages = IO_PAGE_ALIGN(oaddr + sz) - (oaddr & IO_PAGE_MASK);
npages >>= IO_PAGE_SHIFT;
spin_lock_irqsave(&iommu->lock, flags);
base = alloc_npages(iommu, npages);
ctx = 0;
if (iommu->iommu_ctxflush)
ctx = iommu_alloc_ctx(iommu);
spin_unlock_irqrestore(&iommu->lock, flags);
base = alloc_streaming_cluster(iommu, npages);
if (base == NULL)
if (unlikely(!base))
goto bad;
bus_addr = (iommu->page_table_map_base +
((base - iommu->page_table) << IO_PAGE_SHIFT));
ret = bus_addr | (oaddr & ~IO_PAGE_MASK);
base_paddr = __pa(oaddr & IO_PAGE_MASK);
ctx = 0;
if (iommu->iommu_ctxflush)
ctx = iommu_alloc_ctx(iommu);
if (strbuf->strbuf_enabled)
iopte_protection = IOPTE_STREAMING(ctx);
else
......@@ -401,12 +340,13 @@ dma_addr_t pci_map_single(struct pci_dev *pdev, void *ptr, size_t sz, int direct
for (i = 0; i < npages; i++, base++, base_paddr += IO_PAGE_SIZE)
iopte_val(*base) = iopte_protection | base_paddr;
spin_unlock_irqrestore(&iommu->lock, flags);
return ret;
bad:
spin_unlock_irqrestore(&iommu->lock, flags);
iommu_free_ctx(iommu, ctx);
bad_no_ctx:
if (printk_ratelimit())
WARN_ON(1);
return PCI_DMA_ERROR_CODE;
}
......@@ -481,10 +421,13 @@ void pci_unmap_single(struct pci_dev *pdev, dma_addr_t bus_addr, size_t sz, int
struct pci_iommu *iommu;
struct pci_strbuf *strbuf;
iopte_t *base;
unsigned long flags, npages, ctx;
unsigned long flags, npages, ctx, i;
if (direction == PCI_DMA_NONE)
BUG();
if (unlikely(direction == PCI_DMA_NONE)) {
if (printk_ratelimit())
WARN_ON(1);
return;
}
pcp = pdev->sysdata;
iommu = pcp->pbm->iommu;
......@@ -510,13 +453,14 @@ void pci_unmap_single(struct pci_dev *pdev, dma_addr_t bus_addr, size_t sz, int
/* Step 1: Kick data out of streaming buffers if necessary. */
if (strbuf->strbuf_enabled)
pci_strbuf_flush(strbuf, iommu, bus_addr, ctx, npages, direction);
pci_strbuf_flush(strbuf, iommu, bus_addr, ctx,
npages, direction);
/* Step 2: Clear out first TSB entry. */
iopte_make_dummy(iommu, base);
/* Step 2: Clear out TSB entries. */
for (i = 0; i < npages; i++)
iopte_make_dummy(iommu, base + i);
free_streaming_cluster(iommu, bus_addr - iommu->page_table_map_base,
npages, ctx);
free_npages(iommu, bus_addr - iommu->page_table_map_base, npages);
iommu_free_ctx(iommu, ctx);
......@@ -621,6 +565,8 @@ int pci_map_sg(struct pci_dev *pdev, struct scatterlist *sglist, int nelems, int
pci_map_single(pdev,
(page_address(sglist->page) + sglist->offset),
sglist->length, direction);
if (unlikely(sglist->dma_address == PCI_DMA_ERROR_CODE))
return 0;
sglist->dma_length = sglist->length;
return 1;
}
......@@ -629,21 +575,29 @@ int pci_map_sg(struct pci_dev *pdev, struct scatterlist *sglist, int nelems, int
iommu = pcp->pbm->iommu;
strbuf = &pcp->pbm->stc;
if (direction == PCI_DMA_NONE)
BUG();
if (unlikely(direction == PCI_DMA_NONE))
goto bad_no_ctx;
/* Step 1: Prepare scatter list. */
npages = prepare_sg(sglist, nelems);
/* Step 2: Allocate a cluster. */
/* Step 2: Allocate a cluster and context, if necessary. */
spin_lock_irqsave(&iommu->lock, flags);
base = alloc_streaming_cluster(iommu, npages);
base = alloc_npages(iommu, npages);
ctx = 0;
if (iommu->iommu_ctxflush)
ctx = iommu_alloc_ctx(iommu);
spin_unlock_irqrestore(&iommu->lock, flags);
if (base == NULL)
goto bad;
dma_base = iommu->page_table_map_base + ((base - iommu->page_table) << IO_PAGE_SHIFT);
dma_base = iommu->page_table_map_base +
((base - iommu->page_table) << IO_PAGE_SHIFT);
/* Step 3: Normalize DMA addresses. */
used = nelems;
......@@ -656,30 +610,28 @@ int pci_map_sg(struct pci_dev *pdev, struct scatterlist *sglist, int nelems, int
}
used = nelems - used;
/* Step 4: Choose a context if necessary. */
ctx = 0;
if (iommu->iommu_ctxflush)
ctx = iommu_alloc_ctx(iommu);
/* Step 5: Create the mappings. */
/* Step 4: Create the mappings. */
if (strbuf->strbuf_enabled)
iopte_protection = IOPTE_STREAMING(ctx);
else
iopte_protection = IOPTE_CONSISTENT(ctx);
if (direction != PCI_DMA_TODEVICE)
iopte_protection |= IOPTE_WRITE;
fill_sg (base, sglist, used, nelems, iopte_protection);
fill_sg(base, sglist, used, nelems, iopte_protection);
#ifdef VERIFY_SG
verify_sglist(sglist, nelems, base, npages);
#endif
spin_unlock_irqrestore(&iommu->lock, flags);
return used;
bad:
spin_unlock_irqrestore(&iommu->lock, flags);
return PCI_DMA_ERROR_CODE;
iommu_free_ctx(iommu, ctx);
bad_no_ctx:
if (printk_ratelimit())
WARN_ON(1);
return 0;
}
/* Unmap a set of streaming mode DMA translations. */
......@@ -692,8 +644,10 @@ void pci_unmap_sg(struct pci_dev *pdev, struct scatterlist *sglist, int nelems,
unsigned long flags, ctx, i, npages;
u32 bus_addr;
if (direction == PCI_DMA_NONE)
BUG();
if (unlikely(direction == PCI_DMA_NONE)) {
if (printk_ratelimit())
WARN_ON(1);
}
pcp = pdev->sysdata;
iommu = pcp->pbm->iommu;
......@@ -705,7 +659,8 @@ void pci_unmap_sg(struct pci_dev *pdev, struct scatterlist *sglist, int nelems,
if (sglist[i].dma_length == 0)
break;
i--;
npages = (IO_PAGE_ALIGN(sglist[i].dma_address + sglist[i].dma_length) - bus_addr) >> IO_PAGE_SHIFT;
npages = (IO_PAGE_ALIGN(sglist[i].dma_address + sglist[i].dma_length) -
bus_addr) >> IO_PAGE_SHIFT;
base = iommu->page_table +
((bus_addr - iommu->page_table_map_base) >> IO_PAGE_SHIFT);
......@@ -726,11 +681,11 @@ void pci_unmap_sg(struct pci_dev *pdev, struct scatterlist *sglist, int nelems,
if (strbuf->strbuf_enabled)
pci_strbuf_flush(strbuf, iommu, bus_addr, ctx, npages, direction);
/* Step 2: Clear out first TSB entry. */
iopte_make_dummy(iommu, base);
/* Step 2: Clear out the TSB entries. */
for (i = 0; i < npages; i++)
iopte_make_dummy(iommu, base + i);
free_streaming_cluster(iommu, bus_addr - iommu->page_table_map_base,
npages, ctx);
free_npages(iommu, bus_addr - iommu->page_table_map_base, npages);
iommu_free_ctx(iommu, ctx);
......
arch/sparc64/kernel/pci_psycho.c
浏览文件 @ 7946ada3
......@@ -1207,13 +1207,9 @@ static void psycho_scan_bus(struct pci_controller_info *p)
static void psycho_iommu_init(struct pci_controller_info *p)
{
struct pci_iommu *iommu = p->pbm_A.iommu;
unsigned long tsbbase, i;
unsigned long i;
u64 control;
/* Setup initial software IOMMU state. */
spin_lock_init(&iommu->lock);
iommu->ctx_lowest_free = 1;
/* Register addresses. */
iommu->iommu_control = p->pbm_A.controller_regs + PSYCHO_IOMMU_CONTROL;
iommu->iommu_tsbbase = p->pbm_A.controller_regs + PSYCHO_IOMMU_TSBBASE;
......@@ -1240,40 +1236,10 @@ static void psycho_iommu_init(struct pci_controller_info *p)
/* Leave diag mode enabled for full-flushing done
* in pci_iommu.c
*/
pci_iommu_table_init(iommu, IO_TSB_SIZE, 0xc0000000, 0xffffffff);
iommu->dummy_page = __get_free_pages(GFP_KERNEL, 0);
if (!iommu->dummy_page) {
prom_printf("PSYCHO_IOMMU: Error, gfp(dummy_page) failed.\n");
prom_halt();
}
memset((void *)iommu->dummy_page, 0, PAGE_SIZE);
iommu->dummy_page_pa = (unsigned long) __pa(iommu->dummy_page);
/* Using assumed page size 8K with 128K entries we need 1MB iommu page
* table (128K ioptes * 8 bytes per iopte). This is
* page order 7 on UltraSparc.
*/
tsbbase = __get_free_pages(GFP_KERNEL, get_order(IO_TSB_SIZE));
if (!tsbbase) {
prom_printf("PSYCHO_IOMMU: Error, gfp(tsb) failed.\n");
prom_halt();
}
iommu->page_table = (iopte_t *)tsbbase;
iommu->page_table_sz_bits = 17;
iommu->page_table_map_base = 0xc0000000;
iommu->dma_addr_mask = 0xffffffff;
pci_iommu_table_init(iommu, IO_TSB_SIZE);
/* We start with no consistent mappings. */
iommu->lowest_consistent_map =
1 << (iommu->page_table_sz_bits - PBM_LOGCLUSTERS);
for (i = 0; i < PBM_NCLUSTERS; i++) {
iommu->alloc_info[i].flush = 0;
iommu->alloc_info[i].next = 0;
}
psycho_write(p->pbm_A.controller_regs + PSYCHO_IOMMU_TSBBASE, __pa(tsbbase));
psycho_write(p->pbm_A.controller_regs + PSYCHO_IOMMU_TSBBASE,
__pa(iommu->page_table));
control = psycho_read(p->pbm_A.controller_regs + PSYCHO_IOMMU_CONTROL);
control &= ~(PSYCHO_IOMMU_CTRL_TSBSZ | PSYCHO_IOMMU_CTRL_TBWSZ);
......@@ -1281,7 +1247,7 @@ static void psycho_iommu_init(struct pci_controller_info *p)
psycho_write(p->pbm_A.controller_regs + PSYCHO_IOMMU_CONTROL, control);
/* If necessary, hook us up for starfire IRQ translations. */
if(this_is_starfire)
if (this_is_starfire)
p->starfire_cookie = starfire_hookup(p->pbm_A.portid);
else
p->starfire_cookie = NULL;
......
arch/sparc64/kernel/pci_sabre.c
浏览文件 @ 7946ada3
......@@ -1267,13 +1267,9 @@ static void sabre_iommu_init(struct pci_controller_info *p,
u32 dma_mask)
{
struct pci_iommu *iommu = p->pbm_A.iommu;
unsigned long tsbbase, i, order;
unsigned long i;
u64 control;
/* Setup initial software IOMMU state. */
spin_lock_init(&iommu->lock);
iommu->ctx_lowest_free = 1;
/* Register addresses. */
iommu->iommu_control = p->pbm_A.controller_regs + SABRE_IOMMU_CONTROL;
iommu->iommu_tsbbase = p->pbm_A.controller_regs + SABRE_IOMMU_TSBBASE;
......@@ -1295,26 +1291,10 @@ static void sabre_iommu_init(struct pci_controller_info *p,
/* Leave diag mode enabled for full-flushing done
* in pci_iommu.c
*/
pci_iommu_table_init(iommu, tsbsize * 1024 * 8, dvma_offset, dma_mask);
iommu->dummy_page = __get_free_pages(GFP_KERNEL, 0);
if (!iommu->dummy_page) {
prom_printf("PSYCHO_IOMMU: Error, gfp(dummy_page) failed.\n");
prom_halt();
}
memset((void *)iommu->dummy_page, 0, PAGE_SIZE);
iommu->dummy_page_pa = (unsigned long) __pa(iommu->dummy_page);
tsbbase = __get_free_pages(GFP_KERNEL, order = get_order(tsbsize * 1024 * 8));
if (!tsbbase) {
prom_printf("SABRE_IOMMU: Error, gfp(tsb) failed.\n");
prom_halt();
}
iommu->page_table = (iopte_t *)tsbbase;
iommu->page_table_map_base = dvma_offset;
iommu->dma_addr_mask = dma_mask;
pci_iommu_table_init(iommu, PAGE_SIZE << order);
sabre_write(p->pbm_A.controller_regs + SABRE_IOMMU_TSBBASE, __pa(tsbbase));
sabre_write(p->pbm_A.controller_regs + SABRE_IOMMU_TSBBASE,
__pa(iommu->page_table));
control = sabre_read(p->pbm_A.controller_regs + SABRE_IOMMU_CONTROL);
control &= ~(SABRE_IOMMUCTRL_TSBSZ | SABRE_IOMMUCTRL_TBWSZ);
......@@ -1322,11 +1302,9 @@ static void sabre_iommu_init(struct pci_controller_info *p,
switch(tsbsize) {
case 64:
control |= SABRE_IOMMU_TSBSZ_64K;
iommu->page_table_sz_bits = 16;
break;
case 128:
control |= SABRE_IOMMU_TSBSZ_128K;
iommu->page_table_sz_bits = 17;
break;
default:
prom_printf("iommu_init: Illegal TSB size %d\n", tsbsize);
......@@ -1334,15 +1312,6 @@ static void sabre_iommu_init(struct pci_controller_info *p,
break;
}
sabre_write(p->pbm_A.controller_regs + SABRE_IOMMU_CONTROL, control);
/* We start with no consistent mappings. */
iommu->lowest_consistent_map =
1 << (iommu->page_table_sz_bits - PBM_LOGCLUSTERS);
for (i = 0; i < PBM_NCLUSTERS; i++) {
iommu->alloc_info[i].flush = 0;
iommu->alloc_info[i].next = 0;
}
}
static void pbm_register_toplevel_resources(struct pci_controller_info *p,
......
arch/sparc64/kernel/pci_schizo.c
浏览文件 @ 7946ada3
......@@ -1765,7 +1765,7 @@ static void schizo_pbm_strbuf_init(struct pci_pbm_info *pbm)
static void schizo_pbm_iommu_init(struct pci_pbm_info *pbm)
{
struct pci_iommu *iommu = pbm->iommu;
unsigned long tsbbase, i, tagbase, database, order;
unsigned long i, tagbase, database;
u32 vdma[2], dma_mask;
u64 control;
int err, tsbsize;
......@@ -1800,10 +1800,6 @@ static void schizo_pbm_iommu_init(struct pci_pbm_info *pbm)
prom_halt();
};
/* Setup initial software IOMMU state. */
spin_lock_init(&iommu->lock);
iommu->ctx_lowest_free = 1;
/* Register addresses, SCHIZO has iommu ctx flushing. */
iommu->iommu_control = pbm->pbm_regs + SCHIZO_IOMMU_CONTROL;
iommu->iommu_tsbbase = pbm->pbm_regs + SCHIZO_IOMMU_TSBBASE;
......@@ -1832,56 +1828,9 @@ static void schizo_pbm_iommu_init(struct pci_pbm_info *pbm)
/* Leave diag mode enabled for full-flushing done
* in pci_iommu.c
*/
pci_iommu_table_init(iommu, tsbsize * 8 * 1024, vdma[0], dma_mask);
iommu->dummy_page = __get_free_pages(GFP_KERNEL, 0);
if (!iommu->dummy_page) {
prom_printf("PSYCHO_IOMMU: Error, gfp(dummy_page) failed.\n");
prom_halt();
}
memset((void *)iommu->dummy_page, 0, PAGE_SIZE);
iommu->dummy_page_pa = (unsigned long) __pa(iommu->dummy_page);
/* Using assumed page size 8K with 128K entries we need 1MB iommu page
* table (128K ioptes * 8 bytes per iopte). This is
* page order 7 on UltraSparc.
*/
order = get_order(tsbsize * 8 * 1024);
tsbbase = __get_free_pages(GFP_KERNEL, order);
if (!tsbbase) {
prom_printf("%s: Error, gfp(tsb) failed.\n", pbm->name);
prom_halt();
}
iommu->page_table = (iopte_t *)tsbbase;
iommu->page_table_map_base = vdma[0];
iommu->dma_addr_mask = dma_mask;
pci_iommu_table_init(iommu, PAGE_SIZE << order);
switch (tsbsize) {
case 64:
iommu->page_table_sz_bits = 16;
break;
case 128:
iommu->page_table_sz_bits = 17;
break;
default:
prom_printf("iommu_init: Illegal TSB size %d\n", tsbsize);
prom_halt();
break;
};
/* We start with no consistent mappings. */
iommu->lowest_consistent_map =
1 << (iommu->page_table_sz_bits - PBM_LOGCLUSTERS);
for (i = 0; i < PBM_NCLUSTERS; i++) {
iommu->alloc_info[i].flush = 0;
iommu->alloc_info[i].next = 0;
}
schizo_write(iommu->iommu_tsbbase, __pa(tsbbase));
schizo_write(iommu->iommu_tsbbase, __pa(iommu->page_table));
control = schizo_read(iommu->iommu_control);
control &= ~(SCHIZO_IOMMU_CTRL_TSBSZ | SCHIZO_IOMMU_CTRL_TBWSZ);
......
arch/sparc64/kernel/smp.c
浏览文件 @ 7946ada3
......@@ -1001,13 +1001,6 @@ void smp_penguin_jailcell(int irq, struct pt_regs *regs)
preempt_enable();
}
extern unsigned long xcall_promstop;
void smp_promstop_others(void)
{
smp_cross_call(&xcall_promstop, 0, 0, 0);
}
#define prof_multiplier(__cpu) cpu_data(__cpu).multiplier
#define prof_counter(__cpu) cpu_data(__cpu).counter
......
arch/sparc64/mm/init.c
浏览文件 @ 7946ada3
......@@ -367,8 +367,11 @@ struct linux_prom_translation {
unsigned long size;
unsigned long data;
};
static struct linux_prom_translation prom_trans[512] __initdata;
static unsigned int prom_trans_ents __initdata;
/* Exported for kernel TLB miss handling in ktlb.S */
struct linux_prom_translation prom_trans[512] __read_mostly;
unsigned int prom_trans_ents __read_mostly;
unsigned int swapper_pgd_zero __read_mostly;
extern unsigned long prom_boot_page;
extern void prom_remap(unsigned long physpage, unsigned long virtpage, int mmu_ihandle);
......@@ -378,122 +381,57 @@ extern void register_prom_callbacks(void);
/* Exported for SMP bootup purposes. */
unsigned long kern_locked_tte_data;
/* Exported for kernel TLB miss handling in ktlb.S */
unsigned long prom_pmd_phys __read_mostly;
unsigned int swapper_pgd_zero __read_mostly;
static pmd_t *prompmd __read_mostly;
#define BASE_PAGE_SIZE 8192
/*
* Translate PROM's mapping we capture at boot time into physical address.
* The second parameter is only set from prom_callback() invocations.
*/
unsigned long prom_virt_to_phys(unsigned long promva, int *error)
{
pmd_t *pmdp = prompmd + ((promva >> 23) & 0x7ff);
pte_t *ptep;
unsigned long base;
int i;
for (i = 0; i < prom_trans_ents; i++) {
struct linux_prom_translation *p = &prom_trans[i];
if (promva >= p->virt &&
promva < (p->virt + p->size)) {
unsigned long base = p->data & _PAGE_PADDR;
if (pmd_none(*pmdp)) {
if (error)
*error = 1;
return 0;
*error = 0;
return base + (promva & (8192 - 1));
}
}
ptep = (pte_t *)__pmd_page(*pmdp) + ((promva >> 13) & 0x3ff);
if (!pte_present(*ptep)) {
if (error)
*error = 1;
return 0;
}
if (error) {
*error = 0;
return pte_val(*ptep);
}
base = pte_val(*ptep) & _PAGE_PADDR;
return base + (promva & (BASE_PAGE_SIZE - 1));
return 0UL;
}
/* The obp translations are saved based on 8k pagesize, since obp can
* use a mixture of pagesizes. Misses to the LOW_OBP_ADDRESS ->
* HI_OBP_ADDRESS range are handled in entry.S and do not use the vpte
* HI_OBP_ADDRESS range are handled in ktlb.S and do not use the vpte
* scheme (also, see rant in inherit_locked_prom_mappings()).
*/
static void __init build_obp_range(unsigned long start, unsigned long end, unsigned long data)
{
unsigned long vaddr;
for (vaddr = start; vaddr < end; vaddr += BASE_PAGE_SIZE) {
unsigned long val;
pmd_t *pmd;
pte_t *pte;
pmd = prompmd + ((vaddr >> 23) & 0x7ff);
if (pmd_none(*pmd)) {
pte = __alloc_bootmem(BASE_PAGE_SIZE, BASE_PAGE_SIZE,
PAGE_SIZE);
if (!pte)
prom_halt();
memset(pte, 0, BASE_PAGE_SIZE);
pmd_set(pmd, pte);
}
pte = (pte_t *) __pmd_page(*pmd) + ((vaddr >> 13) & 0x3ff);
val = data;
/* Clear diag TTE bits. */
if (tlb_type == spitfire)
val &= ~0x0003fe0000000000UL;
set_pte_at(&init_mm, vaddr, pte,
__pte(val | _PAGE_MODIFIED));
data += BASE_PAGE_SIZE;
}
}
static inline int in_obp_range(unsigned long vaddr)
{
return (vaddr >= LOW_OBP_ADDRESS &&
vaddr < HI_OBP_ADDRESS);
}
#define OBP_PMD_SIZE 2048
static void __init build_obp_pgtable(void)
static int cmp_ptrans(const void *a, const void *b)
{
unsigned long i;
prompmd = __alloc_bootmem(OBP_PMD_SIZE, OBP_PMD_SIZE, PAGE_SIZE);
if (!prompmd)
prom_halt();
memset(prompmd, 0, OBP_PMD_SIZE);
prom_pmd_phys = __pa(prompmd);
const struct linux_prom_translation *x = a, *y = b;
for (i = 0; i < prom_trans_ents; i++) {
unsigned long start, end;
if (!in_obp_range(prom_trans[i].virt))
continue;
start = prom_trans[i].virt;
end = start + prom_trans[i].size;
if (end > HI_OBP_ADDRESS)
end = HI_OBP_ADDRESS;
build_obp_range(start, end, prom_trans[i].data);
}
if (x->virt > y->virt)
return 1;
if (x->virt < y->virt)
return -1;
return 0;
}
/* Read OBP translations property into 'prom_trans[]'.
* Return the number of entries.
*/
/* Read OBP translations property into 'prom_trans[]'. */
static void __init read_obp_translations(void)
{
int n, node;
int n, node, ents, first, last, i;
node = prom_finddevice("/virtual-memory");
n = prom_getproplen(node, "translations");
......@@ -515,7 +453,41 @@ static void __init read_obp_translations(void)
n = n / sizeof(struct linux_prom_translation);
prom_trans_ents = n;
ents = n;
sort(prom_trans, ents, sizeof(struct linux_prom_translation),
cmp_ptrans, NULL);
/* Now kick out all the non-OBP entries. */
for (i = 0; i < ents; i++) {
if (in_obp_range(prom_trans[i].virt))
break;
}
first = i;
for (; i < ents; i++) {
if (!in_obp_range(prom_trans[i].virt))
break;
}
last = i;
for (i = 0; i < (last - first); i++) {
struct linux_prom_translation *src = &prom_trans[i + first];
struct linux_prom_translation *dest = &prom_trans[i];
*dest = *src;
}
for (; i < ents; i++) {
struct linux_prom_translation *dest = &prom_trans[i];
dest->virt = dest->size = dest->data = 0x0UL;
}
prom_trans_ents = last - first;
if (tlb_type == spitfire) {
/* Clear diag TTE bits. */
for (i = 0; i < prom_trans_ents; i++)
prom_trans[i].data &= ~0x0003fe0000000000UL;
}
}
static void __init remap_kernel(void)
......@@ -553,21 +525,18 @@ static void __init remap_kernel(void)
}
static void __init inherit_prom_mappings_pre(void)
static void __init inherit_prom_mappings(void)
{
read_obp_translations();
/* Now fixup OBP's idea about where we really are mapped. */
prom_printf("Remapping the kernel... ");
remap_kernel();
prom_printf("done.\n");
}
static void __init inherit_prom_mappings_post(void)
{
build_obp_pgtable();
prom_printf("Registering callbacks... ");
register_prom_callbacks();
prom_printf("done.\n");
}
/* The OBP specifications for sun4u mark 0xfffffffc00000000 and
......@@ -1519,7 +1488,7 @@ void __init paging_init(void)
swapper_pgd_zero = pgd_val(swapper_pg_dir[0]);
inherit_prom_mappings_pre();
inherit_prom_mappings();
/* Ok, we can use our TLB miss and window trap handlers safely.
* We need to do a quick peek here to see if we are on StarFire
......@@ -1530,23 +1499,15 @@ void __init paging_init(void)
extern void setup_tba(int);
setup_tba(this_is_starfire);
}
__flush_tlb_all();
/* Everything from this point forward, until we are done with
* inherit_prom_mappings_post(), must complete successfully
* without calling into the firmware. The firwmare page tables
* have not been built, but we are running on the Linux kernel's
* trap table.
*/
inherit_locked_prom_mappings(1);
__flush_tlb_all();
/* Setup bootmem... */
pages_avail = 0;
last_valid_pfn = end_pfn = bootmem_init(&pages_avail);
inherit_prom_mappings_post();
inherit_locked_prom_mappings(1);
#ifdef CONFIG_DEBUG_PAGEALLOC
kernel_physical_mapping_init();
#endif
......
arch/sparc64/mm/ultra.S
浏览文件 @ 7946ada3
......@@ -453,22 +453,6 @@ xcall_flush_dcache_page_spitfire: /* %g1 == physical page address
nop
nop
.globl xcall_promstop
xcall_promstop:
rdpr %pstate, %g2
wrpr %g2, PSTATE_IG | PSTATE_AG, %pstate
rdpr %pil, %g2
wrpr %g0, 15, %pil
sethi %hi(109f), %g7
b,pt %xcc, etrap_irq
109: or %g7, %lo(109b), %g7
flushw
call prom_stopself
nop
/* We should not return, just spin if we do... */
1: b,a,pt %xcc, 1b
nop
.data
errata32_hwbug:
......
arch/sparc64/prom/misc.c
浏览文件 @ 7946ada3
......@@ -68,19 +68,11 @@ void prom_cmdline(void)
local_irq_restore(flags);
}
#ifdef CONFIG_SMP
extern void smp_promstop_others(void);
#endif
/* Drop into the prom, but completely terminate the program.
* No chance of continuing.
*/
void prom_halt(void)
{
#ifdef CONFIG_SMP
smp_promstop_others();
udelay(8000);
#endif
again:
p1275_cmd("exit", P1275_INOUT(0, 0));
goto again; /* PROM is out to get me -DaveM */
......@@ -88,10 +80,6 @@ void prom_halt(void)
void prom_halt_power_off(void)
{
#ifdef CONFIG_SMP
smp_promstop_others();
udelay(8000);
#endif
p1275_cmd("SUNW,power-off", P1275_INOUT(0, 0));
/* if nothing else helps, we just halt */
......
arch/um/drivers/Makefile
浏览文件 @ 7946ada3
......@@ -13,7 +13,7 @@ mcast-objs := mcast_kern.o mcast_user.o
net-objs := net_kern.o net_user.o
mconsole-objs := mconsole_kern.o mconsole_user.o
hostaudio-objs := hostaudio_kern.o
ubd-objs := ubd_kern.o
ubd-objs := ubd_kern.o ubd_user.o
port-objs := port_kern.o port_user.o
harddog-objs := harddog_kern.o harddog_user.o
......
arch/um/drivers/ubd_kern.c
浏览文件 @ 7946ada3
......@@ -35,7 +35,6 @@
#include "linux/blkpg.h"
#include "linux/genhd.h"
#include "linux/spinlock.h"
#include "asm/atomic.h"
#include "asm/segment.h"
#include "asm/uaccess.h"
#include "asm/irq.h"
......@@ -54,21 +53,20 @@
#include "mem.h"
#include "mem_kern.h"
#include "cow.h"
#include "aio.h"
enum ubd_req { UBD_READ, UBD_WRITE };
struct io_thread_req {
enum aio_type op;
enum ubd_req op;
int fds[2];
unsigned long offsets[2];
unsigned long long offset;
unsigned long length;
char *buffer;
int sectorsize;
int bitmap_offset;
long bitmap_start;
long bitmap_end;
unsigned long sector_mask;
unsigned long long cow_offset;
unsigned long bitmap_words[2];
int error;
};
......@@ -82,31 +80,28 @@ extern int create_cow_file(char *cow_file, char *backing_file,
unsigned long *bitmap_len_out,
int *data_offset_out);
extern int read_cow_bitmap(int fd, void *buf, int offset, int len);
extern void do_io(struct io_thread_req *req, struct request *r,
unsigned long *bitmap);
extern void do_io(struct io_thread_req *req);
static inline int ubd_test_bit(__u64 bit, void *data)
static inline int ubd_test_bit(__u64 bit, unsigned char *data)
{
unsigned char *buffer = data;
__u64 n;
int bits, off;
bits = sizeof(buffer[0]) * 8;
bits = sizeof(data[0]) * 8;
n = bit / bits;
off = bit % bits;
return((buffer[n] & (1 << off)) != 0);
return((data[n] & (1 << off)) != 0);
}
static inline void ubd_set_bit(__u64 bit, void *data)
static inline void ubd_set_bit(__u64 bit, unsigned char *data)
{
unsigned char *buffer = data;
__u64 n;
int bits, off;
bits = sizeof(buffer[0]) * 8;
bits = sizeof(data[0]) * 8;
n = bit / bits;
off = bit % bits;
buffer[n] |= (1 << off);
data[n] |= (1 << off);
}
/*End stuff from ubd_user.h*/
......@@ -115,6 +110,8 @@ static inline void ubd_set_bit(__u64 bit, void *data)
static DEFINE_SPINLOCK(ubd_io_lock);
static DEFINE_SPINLOCK(ubd_lock);
static void (*do_ubd)(void);
static int ubd_open(struct inode * inode, struct file * filp);
static int ubd_release(struct inode * inode, struct file * file);
static int ubd_ioctl(struct inode * inode, struct file * file,
......@@ -161,8 +158,6 @@ struct cow {
int data_offset;
};
#define MAX_SG 64
struct ubd {
char *file;
int count;
......@@ -173,7 +168,6 @@ struct ubd {
int no_cow;
struct cow cow;
struct platform_device pdev;
struct scatterlist sg[MAX_SG];
};
#define DEFAULT_COW { \
......@@ -466,114 +460,81 @@ __uml_help(fakehd,
);
static void do_ubd_request(request_queue_t * q);
static int in_ubd;
/* Only changed by ubd_init, which is an initcall. */
int thread_fd = -1;
/* Changed by ubd_handler, which is serialized because interrupts only
* happen on CPU 0.
*/
int intr_count = 0;
static void ubd_end_request(struct request *req, int bytes, int uptodate)
{
if (!end_that_request_first(req, uptodate, bytes >> 9)) {
add_disk_randomness(req->rq_disk);
end_that_request_last(req);
}
}
/* call ubd_finish if you need to serialize */
static void __ubd_finish(struct request *req, int bytes)
static void __ubd_finish(struct request *req, int error)
{
if(bytes < 0){
ubd_end_request(req, 0, 0);
int nsect;
if(error){
end_request(req, 0);
return;
}
ubd_end_request(req, bytes, 1);
nsect = req->current_nr_sectors;
req->sector += nsect;
req->buffer += nsect << 9;
req->errors = 0;
req->nr_sectors -= nsect;
req->current_nr_sectors = 0;
end_request(req, 1);
}
static inline void ubd_finish(struct request *req, int bytes)
static inline void ubd_finish(struct request *req, int error)
{
spin_lock(&ubd_io_lock);
__ubd_finish(req, bytes);
__ubd_finish(req, error);
spin_unlock(&ubd_io_lock);
}
struct bitmap_io {
atomic_t count;
struct aio_context aio;
};
struct ubd_aio {
struct aio_context aio;
struct request *req;
int len;
struct bitmap_io *bitmap;
void *bitmap_buf;
};
static int ubd_reply_fd = -1;
static irqreturn_t ubd_intr(int irq, void *dev, struct pt_regs *unused)
/* Called without ubd_io_lock held */
static void ubd_handler(void)
{
struct aio_thread_reply reply;
struct ubd_aio *aio;
struct request *req;
int err, n, fd = (int) (long) dev;
while(1){
err = os_read_file(fd, &reply, sizeof(reply));
if(err == -EAGAIN)
break;
if(err < 0){
printk("ubd_aio_handler - read returned err %d\n",
-err);
break;
}
aio = container_of(reply.data, struct ubd_aio, aio);
n = reply.err;
if(n == 0){
req = aio->req;
req->nr_sectors -= aio->len >> 9;
if((aio->bitmap != NULL) &&
(atomic_dec_and_test(&aio->bitmap->count))){
aio->aio = aio->bitmap->aio;
aio->len = 0;
kfree(aio->bitmap);
aio->bitmap = NULL;
submit_aio(&aio->aio);
}
else {
if((req->nr_sectors == 0) &&
(aio->bitmap == NULL)){
int len = req->hard_nr_sectors << 9;
ubd_finish(req, len);
}
struct io_thread_req req;
struct request *rq = elv_next_request(ubd_queue);
int n;
if(aio->bitmap_buf != NULL)
kfree(aio->bitmap_buf);
kfree(aio);
}
}
else if(n < 0){
ubd_finish(aio->req, n);
if(aio->bitmap != NULL)
kfree(aio->bitmap);
if(aio->bitmap_buf != NULL)
kfree(aio->bitmap_buf);
kfree(aio);
}
do_ubd = NULL;
intr_count++;
n = os_read_file(thread_fd, &req, sizeof(req));
if(n != sizeof(req)){
printk(KERN_ERR "Pid %d - spurious interrupt in ubd_handler, "
"err = %d\n", os_getpid(), -n);
spin_lock(&ubd_io_lock);
end_request(rq, 0);
spin_unlock(&ubd_io_lock);
return;
}
reactivate_fd(fd, UBD_IRQ);
ubd_finish(rq, req.error);
reactivate_fd(thread_fd, UBD_IRQ);
do_ubd_request(ubd_queue);
}
static irqreturn_t ubd_intr(int irq, void *dev, struct pt_regs *unused)
{
ubd_handler();
return(IRQ_HANDLED);
}
/* Only changed by ubd_init, which is an initcall. */
static int io_pid = -1;
void kill_io_thread(void)
{
if(io_pid != -1)
os_kill_process(io_pid, 1);
}
__uml_exitcall(kill_io_thread);
static int ubd_file_size(struct ubd *dev, __u64 *size_out)
{
char *file;
......@@ -870,10 +831,6 @@ int ubd_init(void)
{
int i;
ubd_reply_fd = init_aio_irq(UBD_IRQ, "ubd", ubd_intr);
if(ubd_reply_fd < 0)
printk("Setting up ubd AIO failed, err = %d\n", ubd_reply_fd);
devfs_mk_dir("ubd");
if (register_blkdev(MAJOR_NR, "ubd"))
return -1;
......@@ -884,7 +841,6 @@ int ubd_init(void)
return -1;
}
blk_queue_max_hw_segments(ubd_queue, MAX_SG);
if (fake_major != MAJOR_NR) {
char name[sizeof("ubd_nnn\0")];
......@@ -896,12 +852,40 @@ int ubd_init(void)
driver_register(&ubd_driver);
for (i = 0; i < MAX_DEV; i++)
ubd_add(i);
return 0;
}
late_initcall(ubd_init);
int ubd_driver_init(void){
unsigned long stack;
int err;
/* Set by CONFIG_BLK_DEV_UBD_SYNC or ubd=sync.*/
if(global_openflags.s){
printk(KERN_INFO "ubd: Synchronous mode\n");
/* Letting ubd=sync be like using ubd#s= instead of ubd#= is
* enough. So use anyway the io thread. */
}
stack = alloc_stack(0, 0);
io_pid = start_io_thread(stack + PAGE_SIZE - sizeof(void *),
&thread_fd);
if(io_pid < 0){
printk(KERN_ERR
"ubd : Failed to start I/O thread (errno = %d) - "
"falling back to synchronous I/O\n", -io_pid);
io_pid = -1;
return(0);
}
err = um_request_irq(UBD_IRQ, thread_fd, IRQ_READ, ubd_intr,
SA_INTERRUPT, "ubd", ubd_dev);
if(err != 0)
printk(KERN_ERR "um_request_irq failed - errno = %d\n", -err);
return(err);
}
device_initcall(ubd_driver_init);
static int ubd_open(struct inode *inode, struct file *filp)
{
struct gendisk *disk = inode->i_bdev->bd_disk;
......@@ -939,55 +923,105 @@ static int ubd_release(struct inode * inode, struct file * file)
return(0);
}
static void cowify_bitmap(struct io_thread_req *req, unsigned long *bitmap)
static void cowify_bitmap(__u64 io_offset, int length, unsigned long *cow_mask,
__u64 *cow_offset, unsigned long *bitmap,
__u64 bitmap_offset, unsigned long *bitmap_words,
__u64 bitmap_len)
{
__u64 sector = req->offset / req->sectorsize;
int i;
__u64 sector = io_offset >> 9;
int i, update_bitmap = 0;
for(i = 0; i < req->length / req->sectorsize; i++){
if(ubd_test_bit(sector + i, bitmap))
for(i = 0; i < length >> 9; i++){
if(cow_mask != NULL)
ubd_set_bit(i, (unsigned char *) cow_mask);
if(ubd_test_bit(sector + i, (unsigned char *) bitmap))
continue;
if(req->bitmap_start == -1)
req->bitmap_start = sector + i;
req->bitmap_end = sector + i + 1;
update_bitmap = 1;
ubd_set_bit(sector + i, (unsigned char *) bitmap);
}
if(!update_bitmap)
return;
*cow_offset = sector / (sizeof(unsigned long) * 8);
/* This takes care of the case where we're exactly at the end of the
* device, and *cow_offset + 1 is off the end. So, just back it up
* by one word. Thanks to Lynn Kerby for the fix and James McMechan
* for the original diagnosis.
*/
if(*cow_offset == ((bitmap_len + sizeof(unsigned long) - 1) /
sizeof(unsigned long) - 1))
(*cow_offset)--;
bitmap_words[0] = bitmap[*cow_offset];
bitmap_words[1] = bitmap[*cow_offset + 1];
*cow_offset *= sizeof(unsigned long);
*cow_offset += bitmap_offset;
}
static void cowify_req(struct io_thread_req *req, unsigned long *bitmap,
__u64 bitmap_offset, __u64 bitmap_len)
{
__u64 sector = req->offset >> 9;
int i;
if(req->length > (sizeof(req->sector_mask) * 8) << 9)
panic("Operation too long");
ubd_set_bit(sector + i, bitmap);
if(req->op == UBD_READ) {
for(i = 0; i < req->length >> 9; i++){
if(ubd_test_bit(sector + i, (unsigned char *) bitmap))
ubd_set_bit(i, (unsigned char *)
&req->sector_mask);
}
}
else cowify_bitmap(req->offset, req->length, &req->sector_mask,
&req->cow_offset, bitmap, bitmap_offset,
req->bitmap_words, bitmap_len);
}
/* Called with ubd_io_lock held */
static int prepare_request(struct request *req, struct io_thread_req *io_req,
unsigned long long offset, int page_offset,
int len, struct page *page)
static int prepare_request(struct request *req, struct io_thread_req *io_req)
{
struct gendisk *disk = req->rq_disk;
struct ubd *dev = disk->private_data;
__u64 offset;
int len;
if(req->rq_status == RQ_INACTIVE) return(1);
/* This should be impossible now */
if((rq_data_dir(req) == WRITE) && !dev->openflags.w){
printk("Write attempted on readonly ubd device %s\n",
disk->disk_name);
ubd_end_request(req, 0, 0);
end_request(req, 0);
return(1);
}
offset = ((__u64) req->sector) << 9;
len = req->current_nr_sectors << 9;
io_req->fds[0] = (dev->cow.file != NULL) ? dev->cow.fd : dev->fd;
io_req->fds[1] = dev->fd;
io_req->cow_offset = -1;
io_req->offset = offset;
io_req->length = len;
io_req->error = 0;
io_req->op = (rq_data_dir(req) == READ) ? AIO_READ : AIO_WRITE;
io_req->sector_mask = 0;
io_req->op = (rq_data_dir(req) == READ) ? UBD_READ : UBD_WRITE;
io_req->offsets[0] = 0;
io_req->offsets[1] = dev->cow.data_offset;
io_req->buffer = page_address(page) + page_offset;
io_req->buffer = req->buffer;
io_req->sectorsize = 1 << 9;
io_req->bitmap_offset = dev->cow.bitmap_offset;
io_req->bitmap_start = -1;
io_req->bitmap_end = -1;
if((dev->cow.file != NULL) && (io_req->op == UBD_WRITE))
cowify_bitmap(io_req, dev->cow.bitmap);
if(dev->cow.file != NULL)
cowify_req(io_req, dev->cow.bitmap, dev->cow.bitmap_offset,
dev->cow.bitmap_len);
return(0);
}
......@@ -996,36 +1030,30 @@ static void do_ubd_request(request_queue_t *q)
{
struct io_thread_req io_req;
struct request *req;
__u64 sector;
int err;
int err, n;
if(in_ubd)
return;
in_ubd = 1;
if(thread_fd == -1){
while((req = elv_next_request(q)) != NULL){
struct gendisk *disk = req->rq_disk;
struct ubd *dev = disk->private_data;
int n, i;
blkdev_dequeue_request(req);
sector = req->sector;
n = blk_rq_map_sg(q, req, dev->sg);
for(i = 0; i < n; i++){
struct scatterlist *sg = &dev->sg[i];
err = prepare_request(req, &io_req, sector << 9,
sg->offset, sg->length,
sg->page);
if(err)
continue;
sector += sg->length >> 9;
do_io(&io_req, req, dev->cow.bitmap);
err = prepare_request(req, &io_req);
if(!err){
do_io(&io_req);
__ubd_finish(req, io_req.error);
}
}
}
else {
if(do_ubd || (req = elv_next_request(q)) == NULL)
return;
err = prepare_request(req, &io_req);
if(!err){
do_ubd = ubd_handler;
n = os_write_file(thread_fd, (char *) &io_req,
sizeof(io_req));
if(n != sizeof(io_req))
printk("write to io thread failed, "
"errno = %d\n", -n);
}
}
in_ubd = 0;
}
static int ubd_ioctl(struct inode * inode, struct file * file,
......@@ -1241,95 +1269,131 @@ int create_cow_file(char *cow_file, char *backing_file, struct openflags flags,
return(err);
}
void do_io(struct io_thread_req *req, struct request *r, unsigned long *bitmap)
static int update_bitmap(struct io_thread_req *req)
{
struct ubd_aio *aio;
struct bitmap_io *bitmap_io = NULL;
char *buf;
void *bitmap_buf = NULL;
unsigned long len, sector;
int nsectors, start, end, bit, err;
__u64 off;
if(req->bitmap_start != -1){
/* Round up to the nearest word */
int round = sizeof(unsigned long);
len = (req->bitmap_end - req->bitmap_start +
round * 8 - 1) / (round * 8);
len *= round;
int n;
off = req->bitmap_start / (8 * round);
off *= round;
if(req->cow_offset == -1)
return(0);
bitmap_io = kmalloc(sizeof(*bitmap_io), GFP_KERNEL);
if(bitmap_io == NULL){
printk("Failed to kmalloc bitmap IO\n");
req->error = 1;
return;
n = os_seek_file(req->fds[1], req->cow_offset);
if(n < 0){
printk("do_io - bitmap lseek failed : err = %d\n", -n);
return(1);
}
bitmap_buf = kmalloc(len, GFP_KERNEL);
if(bitmap_buf == NULL){
printk("do_io : kmalloc of bitmap chunk "
"failed\n");
kfree(bitmap_io);
req->error = 1;
return;
n = os_write_file(req->fds[1], &req->bitmap_words,
sizeof(req->bitmap_words));
if(n != sizeof(req->bitmap_words)){
printk("do_io - bitmap update failed, err = %d fd = %d\n", -n,
req->fds[1]);
return(1);
}
memcpy(bitmap_buf, &bitmap[off / sizeof(bitmap[0])], len);
*bitmap_io = ((struct bitmap_io)
{ .count = ATOMIC_INIT(0),
.aio = INIT_AIO(AIO_WRITE, req->fds[1],
bitmap_buf, len,
req->bitmap_offset + off,
ubd_reply_fd) } );
}
return(0);
}
void do_io(struct io_thread_req *req)
{
char *buf;
unsigned long len;
int n, nsectors, start, end, bit;
int err;
__u64 off;
nsectors = req->length / req->sectorsize;
start = 0;
end = nsectors;
bit = 0;
do {
if(bitmap != NULL){
sector = req->offset / req->sectorsize;
bit = ubd_test_bit(sector + start, bitmap);
bit = ubd_test_bit(start, (unsigned char *) &req->sector_mask);
end = start;
while((end < nsectors) &&
(ubd_test_bit(sector + end, bitmap) == bit))
(ubd_test_bit(end, (unsigned char *)
&req->sector_mask) == bit))
end++;
}
off = req->offsets[bit] + req->offset +
off = req->offset + req->offsets[bit] +
start * req->sectorsize;
len = (end - start) * req->sectorsize;
buf = &req->buffer[start * req->sectorsize];
aio = kmalloc(sizeof(*aio), GFP_KERNEL);
if(aio == NULL){
err = os_seek_file(req->fds[bit], off);
if(err < 0){
printk("do_io - lseek failed : err = %d\n", -err);
req->error = 1;
return;
}
*aio = ((struct ubd_aio)
{ .aio = INIT_AIO(req->op, req->fds[bit], buf,
len, off, ubd_reply_fd),
.len = len,
.req = r,
.bitmap = bitmap_io,
.bitmap_buf = bitmap_buf });
if(aio->bitmap != NULL)
atomic_inc(&aio->bitmap->count);
err = submit_aio(&aio->aio);
if(err){
printk("do_io - submit_aio failed, "
"err = %d\n", err);
if(req->op == UBD_READ){
n = 0;
do {
buf = &buf[n];
len -= n;
n = os_read_file(req->fds[bit], buf, len);
if (n < 0) {
printk("do_io - read failed, err = %d "
"fd = %d\n", -n, req->fds[bit]);
req->error = 1;
return;
}
} while((n < len) && (n != 0));
if (n < len) memset(&buf[n], 0, len - n);
} else {
n = os_write_file(req->fds[bit], buf, len);
if(n != len){
printk("do_io - write failed err = %d "
"fd = %d\n", -n, req->fds[bit]);
req->error = 1;
return;
}
}
start = end;
} while(start < nsectors);
req->error = update_bitmap(req);
}
/* Changed in start_io_thread, which is serialized by being called only
* from ubd_init, which is an initcall.
*/
int kernel_fd = -1;
/* Only changed by the io thread */
int io_count = 0;
int io_thread(void *arg)
{
struct io_thread_req req;
int n;
ignore_sigwinch_sig();
while(1){
n = os_read_file(kernel_fd, &req, sizeof(req));
if(n != sizeof(req)){
if(n < 0)
printk("io_thread - read failed, fd = %d, "
"err = %d\n", kernel_fd, -n);
else {
printk("io_thread - short read, fd = %d, "
"length = %d\n", kernel_fd, n);
}
continue;
}
io_count++;
do_io(&req);
n = os_write_file(kernel_fd, &req, sizeof(req));
if(n != sizeof(req))
printk("io_thread - write failed, fd = %d, err = %d\n",
kernel_fd, -n);
}
}
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/
arch/um/drivers/ubd_user.c 0 → 100644
浏览文件 @ 7946ada3
/*
* Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
* Copyright (C) 2001 Ridgerun,Inc (glonnon@ridgerun.com)
* Licensed under the GPL
*/
#include <stddef.h>
#include <unistd.h>
#include <errno.h>
#include <sched.h>
#include <signal.h>
#include <string.h>
#include <netinet/in.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <sys/mman.h>
#include <sys/param.h>
#include "asm/types.h"
#include "user_util.h"
#include "kern_util.h"
#include "user.h"
#include "ubd_user.h"
#include "os.h"
#include "cow.h"
#include <endian.h>
#include <byteswap.h>
void ignore_sigwinch_sig(void)
{
signal(SIGWINCH, SIG_IGN);
}
int start_io_thread(unsigned long sp, int *fd_out)
{
int pid, fds[2], err;
err = os_pipe(fds, 1, 1);
if(err < 0){
printk("start_io_thread - os_pipe failed, err = %d\n", -err);
goto out;
}
kernel_fd = fds[0];
*fd_out = fds[1];
pid = clone(io_thread, (void *) sp, CLONE_FILES | CLONE_VM | SIGCHLD,
NULL);
if(pid < 0){
printk("start_io_thread - clone failed : errno = %d\n", errno);
err = -errno;
goto out_close;
}
return(pid);
out_close:
os_close_file(fds[0]);
os_close_file(fds[1]);
kernel_fd = -1;
*fd_out = -1;
out:
return(err);
}
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/
arch/um/include/aio.h
浏览文件 @ 7946ada3
......@@ -14,27 +14,15 @@ struct aio_thread_reply {
};
struct aio_context {
enum aio_type type;
int fd;
void *data;
int len;
unsigned long long offset;
int reply_fd;
struct aio_context *next;
};
#define INIT_AIO(aio_type, aio_fd, aio_data, aio_len, aio_offset, \
aio_reply_fd) \
{ .type = aio_type, \
.fd = aio_fd, \
.data = aio_data, \
.len = aio_len, \
.offset = aio_offset, \
.reply_fd = aio_reply_fd }
#define INIT_AIO_CONTEXT { .reply_fd = -1, \
.next = NULL }
extern int submit_aio(struct aio_context *aio);
extern int submit_aio(enum aio_type type, int fd, char *buf, int len,
unsigned long long offset, int reply_fd,
struct aio_context *aio);
#endif
arch/um/include/os.h
浏览文件 @ 7946ada3
......@@ -6,6 +6,7 @@
#ifndef __OS_H__
#define __OS_H__
#include "uml-config.h"
#include "asm/types.h"
#include "../os/include/file.h"
......@@ -159,7 +160,11 @@ extern int can_do_skas(void);
/* Make sure they are clear when running in TT mode. Required by
* SEGV_MAYBE_FIXABLE */
#ifdef UML_CONFIG_MODE_SKAS
#define clear_can_do_skas() do { ptrace_faultinfo = proc_mm = 0; } while (0)
#else
#define clear_can_do_skas() do {} while (0)
#endif
/* mem.c */
extern int create_mem_file(unsigned long len);
......
arch/um/os-Linux/aio.c
浏览文件 @ 7946ada3
......@@ -6,7 +6,6 @@
#include <stdlib.h>
#include <unistd.h>
#include <signal.h>
#include <string.h>
#include <errno.h>
#include <sched.h>
#include <sys/syscall.h>
......@@ -17,31 +16,18 @@
#include "user.h"
#include "mode.h"
struct aio_thread_req {
enum aio_type type;
int io_fd;
unsigned long long offset;
char *buf;
int len;
struct aio_context *aio;
};
static int aio_req_fd_r = -1;
static int aio_req_fd_w = -1;
static int update_aio(struct aio_context *aio, int res)
{
if(res < 0)
aio->len = res;
else if((res == 0) && (aio->type == AIO_READ)){
/* This is the EOF case - we have hit the end of the file
* and it ends in a partial block, so we fill the end of
* the block with zeros and claim success.
*/
memset(aio->data, 0, aio->len);
aio->len = 0;
}
else if(res > 0){
aio->len -= res;
aio->data += res;
aio->offset += res;
return aio->len;
}
return 0;
}
#if defined(HAVE_AIO_ABI)
#include <linux/aio_abi.h>
......@@ -80,7 +66,8 @@ static long io_getevents(aio_context_t ctx_id, long min_nr, long nr,
* that it now backs the mmapped area.
*/
static int do_aio(aio_context_t ctx, struct aio_context *aio)
static int do_aio(aio_context_t ctx, enum aio_type type, int fd, char *buf,
int len, unsigned long long offset, struct aio_context *aio)
{
struct iocb iocb, *iocbp = &iocb;
char c;
......@@ -88,39 +75,40 @@ static int do_aio(aio_context_t ctx, struct aio_context *aio)
iocb = ((struct iocb) { .aio_data = (unsigned long) aio,
.aio_reqprio = 0,
.aio_fildes = aio->fd,
.aio_buf = (unsigned long) aio->data,
.aio_nbytes = aio->len,
.aio_offset = aio->offset,
.aio_fildes = fd,
.aio_buf = (unsigned long) buf,
.aio_nbytes = len,
.aio_offset = offset,
.aio_reserved1 = 0,
.aio_reserved2 = 0,
.aio_reserved3 = 0 });
switch(aio->type){
switch(type){
case AIO_READ:
iocb.aio_lio_opcode = IOCB_CMD_PREAD;
err = io_submit(ctx, 1, &iocbp);
break;
case AIO_WRITE:
iocb.aio_lio_opcode = IOCB_CMD_PWRITE;
err = io_submit(ctx, 1, &iocbp);
break;
case AIO_MMAP:
iocb.aio_lio_opcode = IOCB_CMD_PREAD;
iocb.aio_buf = (unsigned long) &c;
iocb.aio_nbytes = sizeof(c);
err = io_submit(ctx, 1, &iocbp);
break;
default:
printk("Bogus op in do_aio - %d\n", aio->type);
printk("Bogus op in do_aio - %d\n", type);
err = -EINVAL;
goto out;
break;
}
err = io_submit(ctx, 1, &iocbp);
if(err > 0)
err = 0;
else
err = -errno;
out:
return err;
}
......@@ -129,9 +117,8 @@ static aio_context_t ctx = 0;
static int aio_thread(void *arg)
{
struct aio_thread_reply reply;
struct aio_context *aio;
struct io_event event;
int err, n;
int err, n, reply_fd;
signal(SIGWINCH, SIG_IGN);
......@@ -144,22 +131,14 @@ static int aio_thread(void *arg)
"errno = %d\n", errno);
}
else {
/* This is safe as we've just a pointer here. */
aio = (struct aio_context *) (long) event.data;
if(update_aio(aio, event.res)){
do_aio(ctx, aio);
continue;
}
reply = ((struct aio_thread_reply)
{ .data = aio,
.err = aio->len });
err = os_write_file(aio->reply_fd, &reply,
sizeof(reply));
{ .data = (void *) (long) event.data,
.err = event.res });
reply_fd = ((struct aio_context *) reply.data)->reply_fd;
err = os_write_file(reply_fd, &reply, sizeof(reply));
if(err != sizeof(reply))
printk("aio_thread - write failed, "
"fd = %d, err = %d\n", aio->reply_fd,
-err);
printk("aio_thread - write failed, fd = %d, "
"err = %d\n", aio_req_fd_r, -err);
}
}
return 0;
......@@ -167,35 +146,35 @@ static int aio_thread(void *arg)
#endif
static int do_not_aio(struct aio_context *aio)
static int do_not_aio(struct aio_thread_req *req)
{
char c;
int err;
switch(aio->type){
switch(req->type){
case AIO_READ:
err = os_seek_file(aio->fd, aio->offset);
err = os_seek_file(req->io_fd, req->offset);
if(err)
goto out;
err = os_read_file(aio->fd, aio->data, aio->len);
err = os_read_file(req->io_fd, req->buf, req->len);
break;
case AIO_WRITE:
err = os_seek_file(aio->fd, aio->offset);
err = os_seek_file(req->io_fd, req->offset);
if(err)
goto out;
err = os_write_file(aio->fd, aio->data, aio->len);
err = os_write_file(req->io_fd, req->buf, req->len);
break;
case AIO_MMAP:
err = os_seek_file(aio->fd, aio->offset);
err = os_seek_file(req->io_fd, req->offset);
if(err)
goto out;
err = os_read_file(aio->fd, &c, sizeof(c));
err = os_read_file(req->io_fd, &c, sizeof(c));
break;
default:
printk("do_not_aio - bad request type : %d\n", aio->type);
printk("do_not_aio - bad request type : %d\n", req->type);
err = -EINVAL;
break;
}
......@@ -206,14 +185,14 @@ static int do_not_aio(struct aio_context *aio)
static int not_aio_thread(void *arg)
{
struct aio_context *aio;
struct aio_thread_req req;
struct aio_thread_reply reply;
int err;
signal(SIGWINCH, SIG_IGN);
while(1){
err = os_read_file(aio_req_fd_r, &aio, sizeof(aio));
if(err != sizeof(aio)){
err = os_read_file(aio_req_fd_r, &req, sizeof(req));
if(err != sizeof(req)){
if(err < 0)
printk("not_aio_thread - read failed, "
"fd = %d, err = %d\n", aio_req_fd_r,
......@@ -224,34 +203,17 @@ static int not_aio_thread(void *arg)
}
continue;
}
again:
err = do_not_aio(aio);
if(update_aio(aio, err))
goto again;
reply = ((struct aio_thread_reply) { .data = aio,
.err = aio->len });
err = os_write_file(aio->reply_fd, &reply, sizeof(reply));
err = do_not_aio(&req);
reply = ((struct aio_thread_reply) { .data = req.aio,
.err = err });
err = os_write_file(req.aio->reply_fd, &reply, sizeof(reply));
if(err != sizeof(reply))
printk("not_aio_thread - write failed, fd = %d, "
"err = %d\n", aio_req_fd_r, -err);
}
}
static int submit_aio_24(struct aio_context *aio)
{
int err;
err = os_write_file(aio_req_fd_w, &aio, sizeof(aio));
if(err == sizeof(aio))
err = 0;
return err;
}
static int aio_pid = -1;
static int (*submit_proc)(struct aio_context *aio);
static int init_aio_24(void)
{
......@@ -283,33 +245,11 @@ static int init_aio_24(void)
#endif
printk("2.6 host AIO support not used - falling back to I/O "
"thread\n");
submit_proc = submit_aio_24;
return 0;
}
#ifdef HAVE_AIO_ABI
#define DEFAULT_24_AIO 0
static int submit_aio_26(struct aio_context *aio)
{
struct aio_thread_reply reply;
int err;
err = do_aio(ctx, aio);
if(err){
reply = ((struct aio_thread_reply) { .data = aio,
.err = err });
err = os_write_file(aio->reply_fd, &reply, sizeof(reply));
if(err != sizeof(reply))
printk("submit_aio_26 - write failed, "
"fd = %d, err = %d\n", aio->reply_fd, -err);
else err = 0;
}
return err;
}
static int init_aio_26(void)
{
unsigned long stack;
......@@ -330,22 +270,39 @@ static int init_aio_26(void)
aio_pid = err;
printk("Using 2.6 host AIO\n");
return 0;
}
submit_proc = submit_aio_26;
static int submit_aio_26(enum aio_type type, int io_fd, char *buf, int len,
unsigned long long offset, struct aio_context *aio)
{
struct aio_thread_reply reply;
int err;
return 0;
err = do_aio(ctx, type, io_fd, buf, len, offset, aio);
if(err){
reply = ((struct aio_thread_reply) { .data = aio,
.err = err });
err = os_write_file(aio->reply_fd, &reply, sizeof(reply));
if(err != sizeof(reply))
printk("submit_aio_26 - write failed, "
"fd = %d, err = %d\n", aio->reply_fd, -err);
else err = 0;
}
return err;
}
#else
#define DEFAULT_24_AIO 1
static int submit_aio_26(struct aio_context *aio)
static int init_aio_26(void)
{
return -ENOSYS;
}
static int init_aio_26(void)
static int submit_aio_26(enum aio_type type, int io_fd, char *buf, int len,
unsigned long long offset, struct aio_context *aio)
{
submit_proc = submit_aio_26;
return -ENOSYS;
}
#endif
......@@ -412,7 +369,33 @@ static void exit_aio(void)
__uml_exitcall(exit_aio);
int submit_aio(struct aio_context *aio)
static int submit_aio_24(enum aio_type type, int io_fd, char *buf, int len,
unsigned long long offset, struct aio_context *aio)
{
return (*submit_proc)(aio);
struct aio_thread_req req = { .type = type,
.io_fd = io_fd,
.offset = offset,
.buf = buf,
.len = len,
.aio = aio,
};
int err;
err = os_write_file(aio_req_fd_w, &req, sizeof(req));
if(err == sizeof(req))
err = 0;
return err;
}
int submit_aio(enum aio_type type, int io_fd, char *buf, int len,
unsigned long long offset, int reply_fd,
struct aio_context *aio)
{
aio->reply_fd = reply_fd;
if(aio_24)
return submit_aio_24(type, io_fd, buf, len, offset, aio);
else {
return submit_aio_26(type, io_fd, buf, len, offset, aio);
}
}
drivers/char/mbcs.c
浏览文件 @ 7946ada3
......@@ -830,6 +830,9 @@ static int __init mbcs_init(void)
{
int rv;
if (!ia64_platform_is("sn2"))
return -ENODEV;
// Put driver into chrdevs[]. Get major number.
rv = register_chrdev(mbcs_major, DEVICE_NAME, &mbcs_ops);
if (rv < 0) {
......
drivers/firmware/dell_rbu.c
浏览文件 @ 7946ada3
......@@ -50,7 +50,7 @@
MODULE_AUTHOR("Abhay Salunke <abhay_salunke@dell.com>");
MODULE_DESCRIPTION("Driver for updating BIOS image on DELL systems");
MODULE_LICENSE("GPL");
MODULE_VERSION("2.0");
MODULE_VERSION("3.0");
#define BIOS_SCAN_LIMIT 0xffffffff
#define MAX_IMAGE_LENGTH 16
......@@ -62,15 +62,16 @@ static struct _rbu_data {
int dma_alloc;
spinlock_t lock;
unsigned long packet_read_count;
unsigned long packet_write_count;
unsigned long num_packets;
unsigned long packetsize;
unsigned long imagesize;
int entry_created;
} rbu_data;
static char image_type[MAX_IMAGE_LENGTH + 1] = "mono";
module_param_string(image_type, image_type, sizeof (image_type), 0);
MODULE_PARM_DESC(image_type, "BIOS image type. choose- mono or packet");
MODULE_PARM_DESC(image_type,
"BIOS image type. choose- mono or packet or init");
struct packet_data {
struct list_head list;
......@@ -88,55 +89,13 @@ static dma_addr_t dell_rbu_dmaaddr;
static void init_packet_head(void)
{
INIT_LIST_HEAD(&packet_data_head.list);
rbu_data.packet_write_count = 0;
rbu_data.packet_read_count = 0;
rbu_data.num_packets = 0;
rbu_data.packetsize = 0;
rbu_data.imagesize = 0;
}
static int fill_last_packet(void *data, size_t length)
{
struct list_head *ptemp_list;
struct packet_data *packet = NULL;
int packet_count = 0;
pr_debug("fill_last_packet: entry \n");
if (!rbu_data.num_packets) {
pr_debug("fill_last_packet: num_packets=0\n");
return -ENOMEM;
}
packet_count = rbu_data.num_packets;
ptemp_list = (&packet_data_head.list)->prev;
packet = list_entry(ptemp_list, struct packet_data, list);
if ((rbu_data.packet_write_count + length) > rbu_data.packetsize) {
pr_debug("dell_rbu:%s: packet size data "
"overrun\n", __FUNCTION__);
return -EINVAL;
}
pr_debug("fill_last_packet : buffer = %p\n", packet->data);
memcpy((packet->data + rbu_data.packet_write_count), data, length);
if ((rbu_data.packet_write_count + length) == rbu_data.packetsize) {
/*
* this was the last data chunk in the packet
* so reinitialize the packet data counter to zero
*/
rbu_data.packet_write_count = 0;
} else
rbu_data.packet_write_count += length;
pr_debug("fill_last_packet: exit \n");
return 0;
}
static int create_packet(size_t length)
static int create_packet(void *data, size_t length)
{
struct packet_data *newpacket;
int ordernum = 0;
......@@ -186,9 +145,11 @@ static int create_packet(size_t length)
INIT_LIST_HEAD(&newpacket->list);
list_add_tail(&newpacket->list, &packet_data_head.list);
/*
* packets have fixed size
* packets may not have fixed size
*/
newpacket->length = rbu_data.packetsize;
newpacket->length = length;
memcpy(newpacket->data, data, length);
pr_debug("create_packet: exit \n");
......@@ -198,14 +159,38 @@ static int create_packet(size_t length)
static int packetize_data(void *data, size_t length)
{
int rc = 0;
int done = 0;
int packet_length;
u8 *temp;
u8 *end = (u8 *) data + length;
pr_debug("packetize_data: data length %d\n", length);
if (!rbu_data.packetsize) {
printk(KERN_WARNING
"dell_rbu: packetsize not specified\n");
return -EIO;
}
if (!rbu_data.packet_write_count) {
if ((rc = create_packet(length)))
return rc;
temp = (u8 *) data;
/* packetize the hunk */
while (!done) {
if ((temp + rbu_data.packetsize) < end)
packet_length = rbu_data.packetsize;
else {
/* this is the last packet */
packet_length = end - temp;
done = 1;
}
if ((rc = fill_last_packet(data, length)))
if ((rc = create_packet(temp, packet_length)))
return rc;
pr_debug("%lu:%lu\n", temp, (end - temp));
temp += packet_length;
}
rbu_data.imagesize = length;
return rc;
}
......@@ -243,7 +228,7 @@ static int do_packet_read(char *data, struct list_head *ptemp_list,
return bytes_copied;
}
static int packet_read_list(char *data, size_t *pread_length)
static int packet_read_list(char *data, size_t * pread_length)
{
struct list_head *ptemp_list;
int temp_count = 0;
......@@ -303,10 +288,9 @@ static void packet_empty_list(void)
newpacket->ordernum);
kfree(newpacket);
}
rbu_data.packet_write_count = 0;
rbu_data.packet_read_count = 0;
rbu_data.num_packets = 0;
rbu_data.packetsize = 0;
rbu_data.imagesize = 0;
}
/*
......@@ -425,7 +409,6 @@ static ssize_t read_packet_data(char *buffer, loff_t pos, size_t count)
size_t bytes_left;
size_t data_length;
char *ptempBuf = buffer;
unsigned long imagesize;
/* check to see if we have something to return */
if (rbu_data.num_packets == 0) {
......@@ -434,22 +417,20 @@ static ssize_t read_packet_data(char *buffer, loff_t pos, size_t count)
goto read_rbu_data_exit;
}
imagesize = rbu_data.num_packets * rbu_data.packetsize;
if (pos > imagesize) {
if (pos > rbu_data.imagesize) {
retval = 0;
printk(KERN_WARNING "dell_rbu:read_packet_data: "
"data underrun\n");
goto read_rbu_data_exit;
}
bytes_left = imagesize - pos;
bytes_left = rbu_data.imagesize - pos;
data_length = min(bytes_left, count);
if ((retval = packet_read_list(ptempBuf, &data_length)) < 0)
goto read_rbu_data_exit;
if ((pos + count) > imagesize) {
if ((pos + count) > rbu_data.imagesize) {
rbu_data.packet_read_count = 0;
/* this was the last copy */
retval = bytes_left;
......@@ -531,13 +512,18 @@ static void callbackfn_rbu(const struct firmware *fw, void *context)
memcpy(rbu_data.image_update_buffer,
fw->data, fw->size);
} else if (!strcmp(image_type, "packet")) {
if (!rbu_data.packetsize)
rbu_data.packetsize = fw->size;
else if (rbu_data.packetsize != fw->size) {
/*
* we need to free previous packets if a
* new hunk of packets needs to be downloaded
*/
packet_empty_list();
if (packetize_data(fw->data, fw->size))
/* Incase something goes wrong when we are
* in middle of packetizing the data, we
* need to free up whatever packets might
* have been created before we quit.
*/
packet_empty_list();
rbu_data.packetsize = fw->size;
}
packetize_data(fw->data, fw->size);
} else
pr_debug("invalid image type specified.\n");
spin_unlock(&rbu_data.lock);
......@@ -621,25 +607,49 @@ static ssize_t write_rbu_image_type(struct kobject *kobj, char *buffer,
return rc;
}
static ssize_t read_rbu_packet_size(struct kobject *kobj, char *buffer,
loff_t pos, size_t count)
{
int size = 0;
if (!pos) {
spin_lock(&rbu_data.lock);
size = sprintf(buffer, "%lu\n", rbu_data.packetsize);
spin_unlock(&rbu_data.lock);
}
return size;
}
static ssize_t write_rbu_packet_size(struct kobject *kobj, char *buffer,
loff_t pos, size_t count)
{
unsigned long temp;
spin_lock(&rbu_data.lock);
packet_empty_list();
sscanf(buffer, "%lu", &temp);
if (temp < 0xffffffff)
rbu_data.packetsize = temp;
spin_unlock(&rbu_data.lock);
return count;
}
static struct bin_attribute rbu_data_attr = {
.attr = {
.name = "data",
.owner = THIS_MODULE,
.mode = 0444,
},
.attr = {.name = "data",.owner = THIS_MODULE,.mode = 0444},
.read = read_rbu_data,
};
static struct bin_attribute rbu_image_type_attr = {
.attr = {
.name = "image_type",
.owner = THIS_MODULE,
.mode = 0644,
},
.attr = {.name = "image_type",.owner = THIS_MODULE,.mode = 0644},
.read = read_rbu_image_type,
.write = write_rbu_image_type,
};
static struct bin_attribute rbu_packet_size_attr = {
.attr = {.name = "packet_size",.owner = THIS_MODULE,.mode = 0644},
.read = read_rbu_packet_size,
.write = write_rbu_packet_size,
};
static int __init dcdrbu_init(void)
{
int rc = 0;
......@@ -657,6 +667,8 @@ static int __init dcdrbu_init(void)
sysfs_create_bin_file(&rbu_device->dev.kobj, &rbu_data_attr);
sysfs_create_bin_file(&rbu_device->dev.kobj, &rbu_image_type_attr);
sysfs_create_bin_file(&rbu_device->dev.kobj,
&rbu_packet_size_attr);
rc = request_firmware_nowait(THIS_MODULE, FW_ACTION_NOHOTPLUG,
"dell_rbu", &rbu_device->dev, &context, callbackfn_rbu);
......
drivers/input/keyboard/Kconfig
浏览文件 @ 7946ada3
......@@ -93,7 +93,7 @@ config KEYBOARD_LKKBD
config KEYBOARD_LOCOMO
tristate "LoCoMo Keyboard Support"
depends on SHARP_LOCOMO
depends on SHARP_LOCOMO && INPUT_KEYBOARD
help
Say Y here if you are running Linux on a Sharp Zaurus Collie or Poodle based PDA
......
drivers/input/keyboard/spitzkbd.c
浏览文件 @ 7946ada3
......@@ -53,7 +53,7 @@ static unsigned char spitzkbd_keycode[NR_SCANCODES] = {
KEY_LEFTCTRL, KEY_1, KEY_3, KEY_5, KEY_6, KEY_7, KEY_9, KEY_0, KEY_BACKSPACE, SPITZ_KEY_EXOK, SPITZ_KEY_EXCANCEL, 0, 0, 0, 0, 0, /* 1-16 */
0, KEY_2, KEY_4, KEY_R, KEY_Y, KEY_8, KEY_I, KEY_O, KEY_P, SPITZ_KEY_EXJOGDOWN, SPITZ_KEY_EXJOGUP, 0, 0, 0, 0, 0, /* 17-32 */
KEY_TAB, KEY_Q, KEY_E, KEY_T, KEY_G, KEY_U, KEY_J, KEY_K, 0, 0, 0, 0, 0, 0, 0, 0, /* 33-48 */
SPITZ_KEY_CALENDER, KEY_W, KEY_S, KEY_F, KEY_V, KEY_H, KEY_M, KEY_L, 0, 0, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0, /* 49-64 */
SPITZ_KEY_CALENDER, KEY_W, KEY_S, KEY_F, KEY_V, KEY_H, KEY_M, KEY_L, 0, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0, 0, /* 49-64 */
SPITZ_KEY_ADDRESS, KEY_A, KEY_D, KEY_C, KEY_B, KEY_N, KEY_DOT, 0, KEY_ENTER, KEY_LEFTSHIFT, 0, 0, 0, 0, 0, 0, /* 65-80 */
SPITZ_KEY_MAIL, KEY_Z, KEY_X, KEY_MINUS, KEY_SPACE, KEY_COMMA, 0, KEY_UP, 0, 0, SPITZ_KEY_FN, 0, 0, 0, 0, 0, /* 81-96 */
KEY_SYSRQ, SPITZ_KEY_JAP1, SPITZ_KEY_JAP2, SPITZ_KEY_CANCEL, SPITZ_KEY_OK, SPITZ_KEY_MENU, KEY_LEFT, KEY_DOWN, KEY_RIGHT, 0, 0, 0, 0, 0, 0, 0 /* 97-112 */
......
drivers/media/radio/radio-cadet.c
浏览文件 @ 7946ada3
......@@ -543,7 +543,7 @@ static int cadet_probe(void)
for(i=0;i<8;i++) {
io=iovals[i];
if(request_region(io,2, "cadet-probe")>=0) {
if (request_region(io, 2, "cadet-probe")) {
cadet_setfreq(1410);
if(cadet_getfreq()==1410) {
release_region(io, 2);
......
drivers/media/video/bttv-cards.c
浏览文件 @ 7946ada3
......@@ -2393,10 +2393,10 @@ struct tvcard bttv_tvcards[] = {
.tuner = 0,
.tuner_type = TUNER_LG_TDVS_H062F,
.tuner_addr = ADDR_UNSET,
.video_inputs = 2,
.video_inputs = 3,
.audio_inputs = 1,
.svhs = 2,
.muxsel = { 2, 3 },
.muxsel = { 2, 3, 1 },
.gpiomask = 0x00e00007,
.audiomux = { 0x00400005, 0, 0x00000001, 0, 0x00c00007, 0 },
.no_msp34xx = 1,
......
drivers/net/e100.c
浏览文件 @ 7946ada3
......@@ -903,8 +903,8 @@ static void mdio_write(struct net_device *netdev, int addr, int reg, int data)
static void e100_get_defaults(struct nic *nic)
{
struct param_range rfds = { .min = 16, .max = 256, .count = 256 };
struct param_range cbs = { .min = 64, .max = 256, .count = 128 };
struct param_range rfds = { .min = 16, .max = 256, .count = 64 };
struct param_range cbs = { .min = 64, .max = 256, .count = 64 };
pci_read_config_byte(nic->pdev, PCI_REVISION_ID, &nic->rev_id);
/* MAC type is encoded as rev ID; exception: ICH is treated as 82559 */
......@@ -1007,212 +1007,24 @@ static void e100_configure(struct nic *nic, struct cb *cb, struct sk_buff *skb)
c[16], c[17], c[18], c[19], c[20], c[21], c[22], c[23]);
}
/********************************************************/
/* Micro code for 8086:1229 Rev 8 */
/********************************************************/
/* Parameter values for the D101M B-step */
#define D101M_CPUSAVER_TIMER_DWORD 78
#define D101M_CPUSAVER_BUNDLE_DWORD 65
#define D101M_CPUSAVER_MIN_SIZE_DWORD 126
#define D101M_B_RCVBUNDLE_UCODE \
{\
0x00550215, 0xFFFF0437, 0xFFFFFFFF, 0x06A70789, 0xFFFFFFFF, 0x0558FFFF, \
0x000C0001, 0x00101312, 0x000C0008, 0x00380216, \
0x0010009C, 0x00204056, 0x002380CC, 0x00380056, \
0x0010009C, 0x00244C0B, 0x00000800, 0x00124818, \
0x00380438, 0x00000000, 0x00140000, 0x00380555, \
0x00308000, 0x00100662, 0x00100561, 0x000E0408, \
0x00134861, 0x000C0002, 0x00103093, 0x00308000, \
0x00100624, 0x00100561, 0x000E0408, 0x00100861, \
0x000C007E, 0x00222C21, 0x000C0002, 0x00103093, \
0x00380C7A, 0x00080000, 0x00103090, 0x00380C7A, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
0x0010009C, 0x00244C2D, 0x00010004, 0x00041000, \
0x003A0437, 0x00044010, 0x0038078A, 0x00000000, \
0x00100099, 0x00206C7A, 0x0010009C, 0x00244C48, \
0x00130824, 0x000C0001, 0x00101213, 0x00260C75, \
0x00041000, 0x00010004, 0x00130826, 0x000C0006, \
0x002206A8, 0x0013C926, 0x00101313, 0x003806A8, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
0x00080600, 0x00101B10, 0x00050004, 0x00100826, \
0x00101210, 0x00380C34, 0x00000000, 0x00000000, \
0x0021155B, 0x00100099, 0x00206559, 0x0010009C, \
0x00244559, 0x00130836, 0x000C0000, 0x00220C62, \
0x000C0001, 0x00101B13, 0x00229C0E, 0x00210C0E, \
0x00226C0E, 0x00216C0E, 0x0022FC0E, 0x00215C0E, \
0x00214C0E, 0x00380555, 0x00010004, 0x00041000, \
0x00278C67, 0x00040800, 0x00018100, 0x003A0437, \
0x00130826, 0x000C0001, 0x00220559, 0x00101313, \
0x00380559, 0x00000000, 0x00000000, 0x00000000, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
0x00000000, 0x00130831, 0x0010090B, 0x00124813, \
0x000CFF80, 0x002606AB, 0x00041000, 0x00010004, \
0x003806A8, 0x00000000, 0x00000000, 0x00000000, \
}
/********************************************************/
/* Micro code for 8086:1229 Rev 9 */
/********************************************************/
/* Parameter values for the D101S */
#define D101S_CPUSAVER_TIMER_DWORD 78
#define D101S_CPUSAVER_BUNDLE_DWORD 67
#define D101S_CPUSAVER_MIN_SIZE_DWORD 128
#define D101S_RCVBUNDLE_UCODE \
{\
0x00550242, 0xFFFF047E, 0xFFFFFFFF, 0x06FF0818, 0xFFFFFFFF, 0x05A6FFFF, \
0x000C0001, 0x00101312, 0x000C0008, 0x00380243, \
0x0010009C, 0x00204056, 0x002380D0, 0x00380056, \
0x0010009C, 0x00244F8B, 0x00000800, 0x00124818, \
0x0038047F, 0x00000000, 0x00140000, 0x003805A3, \
0x00308000, 0x00100610, 0x00100561, 0x000E0408, \
0x00134861, 0x000C0002, 0x00103093, 0x00308000, \
0x00100624, 0x00100561, 0x000E0408, 0x00100861, \
0x000C007E, 0x00222FA1, 0x000C0002, 0x00103093, \
0x00380F90, 0x00080000, 0x00103090, 0x00380F90, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
0x0010009C, 0x00244FAD, 0x00010004, 0x00041000, \
0x003A047E, 0x00044010, 0x00380819, 0x00000000, \
0x00100099, 0x00206FFD, 0x0010009A, 0x0020AFFD, \
0x0010009C, 0x00244FC8, 0x00130824, 0x000C0001, \
0x00101213, 0x00260FF7, 0x00041000, 0x00010004, \
0x00130826, 0x000C0006, 0x00220700, 0x0013C926, \
0x00101313, 0x00380700, 0x00000000, 0x00000000, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
0x00080600, 0x00101B10, 0x00050004, 0x00100826, \
0x00101210, 0x00380FB6, 0x00000000, 0x00000000, \
0x002115A9, 0x00100099, 0x002065A7, 0x0010009A, \
0x0020A5A7, 0x0010009C, 0x002445A7, 0x00130836, \
0x000C0000, 0x00220FE4, 0x000C0001, 0x00101B13, \
0x00229F8E, 0x00210F8E, 0x00226F8E, 0x00216F8E, \
0x0022FF8E, 0x00215F8E, 0x00214F8E, 0x003805A3, \
0x00010004, 0x00041000, 0x00278FE9, 0x00040800, \
0x00018100, 0x003A047E, 0x00130826, 0x000C0001, \
0x002205A7, 0x00101313, 0x003805A7, 0x00000000, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
0x00000000, 0x00000000, 0x00000000, 0x00130831, \
0x0010090B, 0x00124813, 0x000CFF80, 0x00260703, \
0x00041000, 0x00010004, 0x00380700 \
}
/********************************************************/
/* Micro code for the 8086:1229 Rev F/10 */
/********************************************************/
/* Parameter values for the D102 E-step */
#define D102_E_CPUSAVER_TIMER_DWORD 42
#define D102_E_CPUSAVER_BUNDLE_DWORD 54
#define D102_E_CPUSAVER_MIN_SIZE_DWORD 46
#define D102_E_RCVBUNDLE_UCODE \
{\
0x007D028F, 0x0E4204F9, 0x14ED0C85, 0x14FA14E9, 0x0EF70E36, 0x1FFF1FFF, \
0x00E014B9, 0x00000000, 0x00000000, 0x00000000, \
0x00E014BD, 0x00000000, 0x00000000, 0x00000000, \
0x00E014D5, 0x00000000, 0x00000000, 0x00000000, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
0x00E014C1, 0x00000000, 0x00000000, 0x00000000, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
0x00E014C8, 0x00000000, 0x00000000, 0x00000000, \
0x00200600, 0x00E014EE, 0x00000000, 0x00000000, \
0x0030FF80, 0x00940E46, 0x00038200, 0x00102000, \
0x00E00E43, 0x00000000, 0x00000000, 0x00000000, \
0x00300006, 0x00E014FB, 0x00000000, 0x00000000, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
0x00906E41, 0x00800E3C, 0x00E00E39, 0x00000000, \
0x00906EFD, 0x00900EFD, 0x00E00EF8, 0x00000000, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
0x00000000, 0x00000000, 0x00000000, 0x00000000, \
}
static void e100_load_ucode(struct nic *nic, struct cb *cb, struct sk_buff *skb)
{
/* *INDENT-OFF* */
static struct {
u32 ucode[UCODE_SIZE + 1];
u8 mac;
u8 timer_dword;
u8 bundle_dword;
u8 min_size_dword;
} ucode_opts[] = {
{ D101M_B_RCVBUNDLE_UCODE,
mac_82559_D101M,
D101M_CPUSAVER_TIMER_DWORD,
D101M_CPUSAVER_BUNDLE_DWORD,
D101M_CPUSAVER_MIN_SIZE_DWORD },
{ D101S_RCVBUNDLE_UCODE,
mac_82559_D101S,
D101S_CPUSAVER_TIMER_DWORD,
D101S_CPUSAVER_BUNDLE_DWORD,
D101S_CPUSAVER_MIN_SIZE_DWORD },
{ D102_E_RCVBUNDLE_UCODE,
mac_82551_F,
D102_E_CPUSAVER_TIMER_DWORD,
D102_E_CPUSAVER_BUNDLE_DWORD,
D102_E_CPUSAVER_MIN_SIZE_DWORD },
{ D102_E_RCVBUNDLE_UCODE,
mac_82551_10,
D102_E_CPUSAVER_TIMER_DWORD,
D102_E_CPUSAVER_BUNDLE_DWORD,
D102_E_CPUSAVER_MIN_SIZE_DWORD },
{ {0}, 0, 0, 0, 0}
}, *opts;
/* *INDENT-ON* */
#define BUNDLESMALL 1
#define BUNDLEMAX 50
#define INTDELAY 15000
opts = ucode_opts;
/* do not load u-code for ICH devices */
if (nic->flags & ich)
return;
/* Search for ucode match against h/w rev_id */
while (opts->mac) {
if (nic->mac == opts->mac) {
int i;
u32 *ucode = opts->ucode;
/* Insert user-tunable settings */
ucode[opts->timer_dword] &= 0xFFFF0000;
ucode[opts->timer_dword] |=
(u16) INTDELAY;
ucode[opts->bundle_dword] &= 0xFFFF0000;
ucode[opts->bundle_dword] |= (u16) BUNDLEMAX;
ucode[opts->min_size_dword] &= 0xFFFF0000;
ucode[opts->min_size_dword] |=
(BUNDLESMALL) ? 0xFFFF : 0xFF80;
static const u32 ucode[UCODE_SIZE] = {
/* NFS packets are misinterpreted as TCO packets and
* incorrectly routed to the BMC over SMBus. This
* microcode patch checks the fragmented IP bit in the
* NFS/UDP header to distinguish between NFS and TCO. */
0x0EF70E36, 0x1FFF1FFF, 0x1FFF1FFF, 0x1FFF1FFF, 0x1FFF1FFF,
0x1FFF1FFF, 0x00906E41, 0x00800E3C, 0x00E00E39, 0x00000000,
0x00906EFD, 0x00900EFD, 0x00E00EF8,
};
if(nic->mac == mac_82551_F || nic->mac == mac_82551_10) {
for(i = 0; i < UCODE_SIZE; i++)
cb->u.ucode[i] = cpu_to_le32(ucode[i]);
cb->command = cpu_to_le16(cb_ucode);
return;
}
opts++;
}
} else
cb->command = cpu_to_le16(cb_nop);
}
......
drivers/net/wireless/Kconfig
浏览文件 @ 7946ada3
......@@ -243,7 +243,7 @@ config IPW_DEBUG
config AIRO
tristate "Cisco/Aironet 34X/35X/4500/4800 ISA and PCI cards"
depends on NET_RADIO && ISA && (PCI || BROKEN)
depends on NET_RADIO && ISA_DMA_API && (PCI || BROKEN)
---help---
This is the standard Linux driver to support Cisco/Aironet ISA and
PCI 802.11 wireless cards.
......
drivers/pcmcia/soc_common.c
浏览文件 @ 7946ada3
......@@ -66,7 +66,7 @@ void soc_pcmcia_debug(struct soc_pcmcia_socket *skt, const char *func,
if (pc_debug > lvl) {
printk(KERN_DEBUG "skt%u: %s: ", skt->nr, func);
va_start(args, fmt);
printk(fmt, args);
vprintk(fmt, args);
va_end(args);
}
}
......@@ -321,8 +321,6 @@ soc_common_pcmcia_get_socket(struct pcmcia_socket *sock, socket_state_t *state)
* less punt all of this work and let the kernel handle the details
* of power configuration, reset, &c. We also record the value of
* `state' in order to regurgitate it to the PCMCIA core later.
*
* Returns: 0
*/
static int
soc_common_pcmcia_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
......@@ -407,7 +405,7 @@ soc_common_pcmcia_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *m
* the map speed as requested, but override the address ranges
* supplied by Card Services.
*
* Returns: 0 on success, -1 on error
* Returns: 0 on success, -ERRNO on error
*/
static int
soc_common_pcmcia_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *map)
......@@ -655,8 +653,8 @@ static void soc_pcmcia_cpufreq_unregister(void)
}
#else
#define soc_pcmcia_cpufreq_register()
#define soc_pcmcia_cpufreq_unregister()
static int soc_pcmcia_cpufreq_register(void) { return 0; }
static void soc_pcmcia_cpufreq_unregister(void) {}
#endif
int soc_common_drv_pcmcia_probe(struct device *dev, struct pcmcia_low_level *ops, int first, int nr)
......@@ -738,7 +736,7 @@ int soc_common_drv_pcmcia_probe(struct device *dev, struct pcmcia_low_level *ops
goto out_err_5;
}
if ( list_empty(&soc_pcmcia_sockets) )
if (list_empty(&soc_pcmcia_sockets))
soc_pcmcia_cpufreq_register();
list_add(&skt->node, &soc_pcmcia_sockets);
......@@ -839,7 +837,7 @@ int soc_common_drv_pcmcia_remove(struct device *dev)
release_resource(&skt->res_io);
release_resource(&skt->res_skt);
}
if ( list_empty(&soc_pcmcia_sockets) )
if (list_empty(&soc_pcmcia_sockets))
soc_pcmcia_cpufreq_unregister();
up(&soc_pcmcia_sockets_lock);
......
drivers/s390/cio/device.c
浏览文件 @ 7946ada3
......@@ -544,7 +544,7 @@ get_disc_ccwdev_by_devno(unsigned int devno, struct ccw_device *sibling)
.sibling = sibling,
};
dev = bus_find_device(&css_bus_type, NULL, &data, match_devno);
dev = bus_find_device(&ccw_bus_type, NULL, &data, match_devno);
return dev ? to_ccwdev(dev) : NULL;
}
......
drivers/scsi/aacraid/linit.c
浏览文件 @ 7946ada3
......@@ -453,9 +453,9 @@ static int aac_eh_reset(struct scsi_cmnd* cmd)
/*
* We can exit If all the commands are complete
*/
spin_unlock_irq(host->host_lock);
if (active == 0)
return SUCCESS;
spin_unlock_irq(host->host_lock);
ssleep(1);
spin_lock_irq(host->host_lock);
}
......
drivers/scsi/qlogicpti.c
浏览文件 @ 7946ada3
......@@ -1119,6 +1119,36 @@ static inline void update_can_queue(struct Scsi_Host *host, u_int in_ptr, u_int
host->sg_tablesize = QLOGICPTI_MAX_SG(num_free);
}
static unsigned int scsi_rbuf_get(struct scsi_cmnd *cmd, unsigned char **buf_out)
{
unsigned char *buf;
unsigned int buflen;
if (cmd->use_sg) {
struct scatterlist *sg;
sg = (struct scatterlist *) cmd->request_buffer;
buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
buflen = sg->length;
} else {
buf = cmd->request_buffer;
buflen = cmd->request_bufflen;
}
*buf_out = buf;
return buflen;
}
static void scsi_rbuf_put(struct scsi_cmnd *cmd, unsigned char *buf)
{
if (cmd->use_sg) {
struct scatterlist *sg;
sg = (struct scatterlist *) cmd->request_buffer;
kunmap_atomic(buf - sg->offset, KM_IRQ0);
}
}
/*
* Until we scan the entire bus with inquiries, go throught this fella...
*/
......@@ -1145,11 +1175,9 @@ static void ourdone(struct scsi_cmnd *Cmnd)
int ok = host_byte(Cmnd->result) == DID_OK;
if (Cmnd->cmnd[0] == 0x12 && ok) {
unsigned char *iqd;
unsigned int iqd_len;
if (Cmnd->use_sg != 0)
BUG();
iqd = ((unsigned char *)Cmnd->buffer);
iqd_len = scsi_rbuf_get(Cmnd, &iqd);
/* tags handled in midlayer */
/* enable sync mode? */
......@@ -1163,6 +1191,9 @@ static void ourdone(struct scsi_cmnd *Cmnd)
if (iqd[7] & 0x20) {
qpti->dev_param[tgt].device_flags |= 0x20;
}
scsi_rbuf_put(Cmnd, iqd);
qpti->sbits |= (1 << tgt);
} else if (!ok) {
qpti->sbits |= (1 << tgt);
......
drivers/scsi/sata_nv.c
浏览文件 @ 7946ada3
......@@ -29,6 +29,8 @@
* NV-specific details such as register offsets, SATA phy location,
* hotplug info, etc.
*
* 0.09
* - Fixed bug introduced by 0.08's MCP51 and MCP55 support.
*
* 0.08
* - Added support for MCP51 and MCP55.
......@@ -132,9 +134,7 @@ enum nv_host_type
GENERIC,
NFORCE2,
NFORCE3,
CK804,
MCP51,
MCP55
CK804
};
static struct pci_device_id nv_pci_tbl[] = {
......@@ -153,13 +153,13 @@ static struct pci_device_id nv_pci_tbl[] = {
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP04_SATA2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, CK804 },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_SATA,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, MCP51 },
PCI_ANY_ID, PCI_ANY_ID, 0, 0, GENERIC },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_SATA2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, MCP51 },
PCI_ANY_ID, PCI_ANY_ID, 0, 0, GENERIC },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_SATA,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, MCP55 },
PCI_ANY_ID, PCI_ANY_ID, 0, 0, GENERIC },
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_SATA2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, MCP55 },
PCI_ANY_ID, PCI_ANY_ID, 0, 0, GENERIC },
{ PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
PCI_ANY_ID, PCI_ANY_ID,
PCI_CLASS_STORAGE_IDE<<8, 0xffff00, GENERIC },
......
drivers/serial/8250_pnp.c
浏览文件 @ 7946ada3
......@@ -272,6 +272,8 @@ static const struct pnp_device_id pnp_dev_table[] = {
{ "SUP1421", 0 },
/* SupraExpress 33.6 Data/Fax PnP modem */
{ "SUP1590", 0 },
/* SupraExpress 336i Sp ASVD */
{ "SUP1620", 0 },
/* SupraExpress 33.6 Data/Fax PnP modem */
{ "SUP1760", 0 },
/* Phoebe Micro */
......
drivers/serial/imx.c
浏览文件 @ 7946ada3
......@@ -73,7 +73,7 @@ struct imx_port {
struct uart_port port;
struct timer_list timer;
unsigned int old_status;
int txirq,rxirq;
int txirq,rxirq,rtsirq;
};
/*
......@@ -181,6 +181,22 @@ static void imx_start_tx(struct uart_port *port)
imx_transmit_buffer(sport);
}
static irqreturn_t imx_rtsint(int irq, void *dev_id, struct pt_regs *regs)
{
struct imx_port *sport = (struct imx_port *)dev_id;
unsigned int val = USR1((u32)sport->port.membase)&USR1_RTSS;
unsigned long flags;
spin_lock_irqsave(&sport->port.lock, flags);
USR1((u32)sport->port.membase) = USR1_RTSD;
uart_handle_cts_change(&sport->port, !!val);
wake_up_interruptible(&sport->port.info->delta_msr_wait);
spin_unlock_irqrestore(&sport->port.lock, flags);
return IRQ_HANDLED;
}
static irqreturn_t imx_txint(int irq, void *dev_id, struct pt_regs *regs)
{
struct imx_port *sport = (struct imx_port *)dev_id;
......@@ -386,15 +402,21 @@ static int imx_startup(struct uart_port *port)
if (retval) goto error_out1;
retval = request_irq(sport->txirq, imx_txint, 0,
"imx-uart", sport);
DRIVER_NAME, sport);
if (retval) goto error_out2;
retval = request_irq(sport->rtsirq, imx_rtsint, 0,
DRIVER_NAME, sport);
if (retval) goto error_out3;
set_irq_type(sport->rtsirq, IRQT_BOTHEDGE);
/*
* Finally, clear and enable interrupts
*/
USR1((u32)sport->port.membase) = USR1_RTSD;
UCR1((u32)sport->port.membase) |=
(UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_UARTEN);
(UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN | UCR1_UARTEN);
UCR2((u32)sport->port.membase) |= (UCR2_RXEN | UCR2_TXEN);
/*
......@@ -406,6 +428,8 @@ static int imx_startup(struct uart_port *port)
return 0;
error_out3:
free_irq(sport->txirq, sport);
error_out2:
free_irq(sport->rxirq, sport);
error_out1:
......@@ -424,6 +448,7 @@ static void imx_shutdown(struct uart_port *port)
/*
* Free the interrupts
*/
free_irq(sport->rtsirq, sport);
free_irq(sport->txirq, sport);
free_irq(sport->rxirq, sport);
......@@ -432,7 +457,7 @@ static void imx_shutdown(struct uart_port *port)
*/
UCR1((u32)sport->port.membase) &=
~(UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_UARTEN);
~(UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN | UCR1_UARTEN);
}
static void
......@@ -522,7 +547,7 @@ imx_set_termios(struct uart_port *port, struct termios *termios,
* disable interrupts and drain transmitter
*/
old_ucr1 = UCR1((u32)sport->port.membase);
UCR1((u32)sport->port.membase) &= ~(UCR1_TXMPTYEN | UCR1_RRDYEN);
UCR1((u32)sport->port.membase) &= ~(UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN);
while ( !(USR2((u32)sport->port.membase) & USR2_TXDC))
barrier();
......@@ -643,6 +668,7 @@ static struct imx_port imx_ports[] = {
{
.txirq = UART1_MINT_TX,
.rxirq = UART1_MINT_RX,
.rtsirq = UART1_MINT_RTS,
.port = {
.type = PORT_IMX,
.iotype = SERIAL_IO_MEM,
......@@ -658,6 +684,7 @@ static struct imx_port imx_ports[] = {
}, {
.txirq = UART2_MINT_TX,
.rxirq = UART2_MINT_RX,
.rtsirq = UART2_MINT_RTS,
.port = {
.type = PORT_IMX,
.iotype = SERIAL_IO_MEM,
......@@ -737,7 +764,7 @@ imx_console_write(struct console *co, const char *s, unsigned int count)
UCR1((u32)sport->port.membase) =
(old_ucr1 | UCR1_UARTCLKEN | UCR1_UARTEN)
& ~(UCR1_TXMPTYEN | UCR1_RRDYEN);
& ~(UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN);
UCR2((u32)sport->port.membase) = old_ucr2 | UCR2_TXEN;
/*
......
drivers/serial/pxa.c
浏览文件 @ 7946ada3
......@@ -499,7 +499,7 @@ serial_pxa_set_termios(struct uart_port *port, struct termios *termios,
/*
* Update the per-port timeout.
*/
uart_update_timeout(port, termios->c_cflag, quot);
uart_update_timeout(port, termios->c_cflag, baud);
up->port.read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;
if (termios->c_iflag & INPCK)
......
drivers/serial/s3c2410.c
浏览文件 @ 7946ada3
......@@ -1092,7 +1092,7 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport,
static int probe_index = 0;
int s3c24xx_serial_probe(struct device *_dev,
static int s3c24xx_serial_probe(struct device *_dev,
struct s3c24xx_uart_info *info)
{
struct s3c24xx_uart_port *ourport;
......@@ -1120,7 +1120,7 @@ int s3c24xx_serial_probe(struct device *_dev,
return ret;
}
int s3c24xx_serial_remove(struct device *_dev)
static int s3c24xx_serial_remove(struct device *_dev)
{
struct uart_port *port = s3c24xx_dev_to_port(_dev);
......@@ -1134,7 +1134,8 @@ int s3c24xx_serial_remove(struct device *_dev)
#ifdef CONFIG_PM
int s3c24xx_serial_suspend(struct device *dev, pm_message_t state, u32 level)
static int s3c24xx_serial_suspend(struct device *dev, pm_message_t state,
u32 level)
{
struct uart_port *port = s3c24xx_dev_to_port(dev);
......@@ -1144,7 +1145,7 @@ int s3c24xx_serial_suspend(struct device *dev, pm_message_t state, u32 level)
return 0;
}
int s3c24xx_serial_resume(struct device *dev, u32 level)
static int s3c24xx_serial_resume(struct device *dev, u32 level)
{
struct uart_port *port = s3c24xx_dev_to_port(dev);
struct s3c24xx_uart_port *ourport = to_ourport(port);
......@@ -1165,7 +1166,7 @@ int s3c24xx_serial_resume(struct device *dev, u32 level)
#define s3c24xx_serial_resume NULL
#endif
int s3c24xx_serial_init(struct device_driver *drv,
static int s3c24xx_serial_init(struct device_driver *drv,
struct s3c24xx_uart_info *info)
{
dbg("s3c24xx_serial_init(%p,%p)\n", drv, info);
......
drivers/serial/sh-sci.c
浏览文件 @ 7946ada3
......@@ -967,7 +967,7 @@ static int sci_startup(struct uart_port *port)
#endif
sci_request_irq(s);
sci_start_tx(port, 1);
sci_start_tx(port);
sci_start_rx(port, 1);
return 0;
......
drivers/serial/sunsab.c
浏览文件 @ 7946ada3
......@@ -274,7 +274,6 @@ static void transmit_chars(struct uart_sunsab_port *up,
if (uart_circ_empty(xmit) || uart_tx_stopped(&up->port)) {
up->interrupt_mask1 |= SAB82532_IMR1_XPR;
writeb(up->interrupt_mask1, &up->regs->w.imr1);
uart_write_wakeup(&up->port);
return;
}
......
drivers/serial/sunzilog.c
浏览文件 @ 7946ada3
......@@ -517,10 +517,9 @@ static void sunzilog_transmit_chars(struct uart_sunzilog_port *up,
if (up->port.info == NULL)
goto ack_tx_int;
xmit = &up->port.info->xmit;
if (uart_circ_empty(xmit)) {
uart_write_wakeup(&up->port);
if (uart_circ_empty(xmit))
goto ack_tx_int;
}
if (uart_tx_stopped(&up->port))
goto ack_tx_int;
......
drivers/usb/serial/generic.c
浏览文件 @ 7946ada3
......@@ -223,7 +223,7 @@ int usb_serial_generic_write_room (struct usb_serial_port *port)
dbg("%s - port %d", __FUNCTION__, port->number);
if (serial->num_bulk_out) {
if (port->write_urb_busy)
if (!(port->write_urb_busy))
room = port->bulk_out_size;
}
......
drivers/video/sa1100fb.c
浏览文件 @ 7946ada3
......@@ -592,6 +592,7 @@ sa1100fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
return ret;
}
#ifdef CONFIG_CPU_FREQ
/*
* sa1100fb_display_dma_period()
* Calculate the minimum period (in picoseconds) between two DMA
......@@ -606,6 +607,7 @@ static inline unsigned int sa1100fb_display_dma_period(struct fb_var_screeninfo
*/
return var->pixclock * 8 * 16 / var->bits_per_pixel;
}
#endif
/*
* sa1100fb_check_var():
......
drivers/w1/w1.c
浏览文件 @ 7946ada3
......@@ -77,8 +77,7 @@ static void w1_master_release(struct device *dev)
dev_dbg(dev, "%s: Releasing %s.\n", __func__, md->name);
if (md->nls && md->nls->sk_socket)
sock_release(md->nls->sk_socket);
dev_fini_netlink(md);
memset(md, 0, sizeof(struct w1_master) + sizeof(struct w1_bus_master));
kfree(md);
}
......
fs/9p/vfs_file.c
浏览文件 @ 7946ada3
......@@ -175,16 +175,16 @@ static int v9fs_file_lock(struct file *filp, int cmd, struct file_lock *fl)
}
/**
* v9fs_read - read from a file (internal)
* v9fs_file_read - read from a file
* @filep: file pointer to read
* @data: data buffer to read data into
* @count: size of buffer
* @offset: offset at which to read data
*
*/
static ssize_t
v9fs_read(struct file *filp, char *buffer, size_t count, loff_t * offset)
v9fs_file_read(struct file *filp, char __user * data, size_t count,
loff_t * offset)
{
struct inode *inode = filp->f_dentry->d_inode;
struct v9fs_session_info *v9ses = v9fs_inode2v9ses(inode);
......@@ -194,6 +194,7 @@ v9fs_read(struct file *filp, char *buffer, size_t count, loff_t * offset)
int rsize = 0;
int result = 0;
int total = 0;
int n;
dprintk(DEBUG_VFS, "\n");
......@@ -216,10 +217,15 @@ v9fs_read(struct file *filp, char *buffer, size_t count, loff_t * offset)
} else
*offset += result;
/* XXX - extra copy */
memcpy(buffer, fcall->params.rread.data, result);
n = copy_to_user(data, fcall->params.rread.data, result);
if (n) {
dprintk(DEBUG_ERROR, "Problem copying to user %d\n", n);
kfree(fcall);
return -EFAULT;
}
count -= result;
buffer += result;
data += result;
total += result;
kfree(fcall);
......@@ -232,42 +238,7 @@ v9fs_read(struct file *filp, char *buffer, size_t count, loff_t * offset)
}
/**
* v9fs_file_read - read from a file
* @filep: file pointer to read
* @data: data buffer to read data into
* @count: size of buffer
* @offset: offset at which to read data
*
*/
static ssize_t
v9fs_file_read(struct file *filp, char __user * data, size_t count,
loff_t * offset)
{
int retval = -1;
int ret = 0;
char *buffer;
buffer = kmalloc(count, GFP_KERNEL);
if (!buffer)
return -ENOMEM;
retval = v9fs_read(filp, buffer, count, offset);
if (retval > 0) {
if ((ret = copy_to_user(data, buffer, retval)) != 0) {
dprintk(DEBUG_ERROR, "Problem copying to user %d\n",
ret);
retval = ret;
}
}
kfree(buffer);
return retval;
}
/**
* v9fs_write - write to a file
* v9fs_file_write - write to a file
* @filep: file pointer to write
* @data: data buffer to write data from
* @count: size of buffer
......@@ -276,7 +247,8 @@ v9fs_file_read(struct file *filp, char __user * data, size_t count,
*/
static ssize_t
v9fs_write(struct file *filp, char *buffer, size_t count, loff_t * offset)
v9fs_file_write(struct file *filp, const char __user * data,
size_t count, loff_t * offset)
{
struct inode *inode = filp->f_dentry->d_inode;
struct v9fs_session_info *v9ses = v9fs_inode2v9ses(inode);
......@@ -286,30 +258,42 @@ v9fs_write(struct file *filp, char *buffer, size_t count, loff_t * offset)
int result = -EIO;
int rsize = 0;
int total = 0;
char *buf;
dprintk(DEBUG_VFS, "data %p count %d offset %x\n", buffer, (int)count,
dprintk(DEBUG_VFS, "data %p count %d offset %x\n", data, (int)count,
(int)*offset);
rsize = v9ses->maxdata - V9FS_IOHDRSZ;
if (v9fid->iounit != 0 && rsize > v9fid->iounit)
rsize = v9fid->iounit;
dump_data(buffer, count);
buf = kmalloc(v9ses->maxdata - V9FS_IOHDRSZ, GFP_KERNEL);
if (!buf)
return -ENOMEM;
do {
if (count < rsize)
rsize = count;
result =
v9fs_t_write(v9ses, fid, *offset, rsize, buffer, &fcall);
result = copy_from_user(buf, data, rsize);
if (result) {
dprintk(DEBUG_ERROR, "Problem copying from user\n");
kfree(buf);
return -EFAULT;
}
dump_data(buf, rsize);
result = v9fs_t_write(v9ses, fid, *offset, rsize, buf, &fcall);
if (result < 0) {
eprintk(KERN_ERR, "error while writing: %s(%d)\n",
FCALL_ERROR(fcall), result);
kfree(fcall);
kfree(buf);
return result;
} else
*offset += result;
kfree(fcall);
fcall = NULL;
if (result != rsize) {
eprintk(KERN_ERR,
......@@ -319,46 +303,14 @@ v9fs_write(struct file *filp, char *buffer, size_t count, loff_t * offset)
}
count -= result;
buffer += result;
data += result;
total += result;
} while (count);
kfree(buf);
return total;
}
/**
* v9fs_file_write - write to a file
* @filep: file pointer to write
* @data: data buffer to write data from
* @count: size of buffer
* @offset: offset at which to write data
*
*/
static ssize_t
v9fs_file_write(struct file *filp, const char __user * data,
size_t count, loff_t * offset)
{
int ret = -1;
char *buffer;
buffer = kmalloc(count, GFP_KERNEL);
if (buffer == NULL)
return -ENOMEM;
ret = copy_from_user(buffer, data, count);
if (ret) {
dprintk(DEBUG_ERROR, "Problem copying from user\n");
ret = -EFAULT;
} else {
ret = v9fs_write(filp, buffer, count, offset);
}
kfree(buffer);
return ret;
}
struct file_operations v9fs_file_operations = {
.llseek = generic_file_llseek,
.read = v9fs_file_read,
......
fs/binfmt_elf.c
浏览文件 @ 7946ada3
......@@ -905,7 +905,7 @@ static int load_elf_binary(struct linux_binprm * bprm, struct pt_regs * regs)
send_sig(SIGKILL, current, 0);
goto out_free_dentry;
}
if (padzero(elf_bss)) {
if (likely(elf_bss != elf_brk) && unlikely(padzero(elf_bss))) {
send_sig(SIGSEGV, current, 0);
retval = -EFAULT; /* Nobody gets to see this, but.. */
goto out_free_dentry;
......
fs/nfs_common/nfsacl.c
浏览文件 @ 7946ada3
......@@ -48,7 +48,6 @@ xdr_nfsace_encode(struct xdr_array2_desc *desc, void *elem)
(struct nfsacl_encode_desc *) desc;
u32 *p = (u32 *) elem;
if (nfsacl_desc->count < nfsacl_desc->acl->a_count) {
struct posix_acl_entry *entry =
&nfsacl_desc->acl->a_entries[nfsacl_desc->count++];
......@@ -69,22 +68,6 @@ xdr_nfsace_encode(struct xdr_array2_desc *desc, void *elem)
break;
}
*p++ = htonl(entry->e_perm & S_IRWXO);
} else {
const struct posix_acl_entry *pa, *pe;
int group_obj_perm = ACL_READ|ACL_WRITE|ACL_EXECUTE;
FOREACH_ACL_ENTRY(pa, nfsacl_desc->acl, pe) {
if (pa->e_tag == ACL_GROUP_OBJ) {
group_obj_perm = pa->e_perm & S_IRWXO;
break;
}
}
/* fake up ACL_MASK entry */
*p++ = htonl(ACL_MASK | nfsacl_desc->typeflag);
*p++ = htonl(0);
*p++ = htonl(group_obj_perm);
}
return 0;
}
......@@ -105,11 +88,28 @@ nfsacl_encode(struct xdr_buf *buf, unsigned int base, struct inode *inode,
.gid = inode->i_gid,
};
int err;
struct posix_acl *acl2 = NULL;
if (entries > NFS_ACL_MAX_ENTRIES ||
xdr_encode_word(buf, base, entries))
return -EINVAL;
if (encode_entries && acl && acl->a_count == 3) {
/* Fake up an ACL_MASK entry. */
acl2 = posix_acl_alloc(4, GFP_KERNEL);
if (!acl2)
return -ENOMEM;
/* Insert entries in canonical order: other orders seem
to confuse Solaris VxFS. */
acl2->a_entries[0] = acl->a_entries[0]; /* ACL_USER_OBJ */
acl2->a_entries[1] = acl->a_entries[1]; /* ACL_GROUP_OBJ */
acl2->a_entries[2] = acl->a_entries[1]; /* ACL_MASK */
acl2->a_entries[2].e_tag = ACL_MASK;
acl2->a_entries[3] = acl->a_entries[2]; /* ACL_OTHER */
nfsacl_desc.acl = acl2;
}
err = xdr_encode_array2(buf, base + 4, &nfsacl_desc.desc);
if (acl2)
posix_acl_release(acl2);
if (!err)
err = 8 + nfsacl_desc.desc.elem_size *
nfsacl_desc.desc.array_len;
......
fs/proc/base.c
浏览文件 @ 7946ada3
......@@ -103,7 +103,9 @@ enum pid_directory_inos {
PROC_TGID_NUMA_MAPS,
PROC_TGID_MOUNTS,
PROC_TGID_WCHAN,
#ifdef CONFIG_MMU
PROC_TGID_SMAPS,
#endif
#ifdef CONFIG_SCHEDSTATS
PROC_TGID_SCHEDSTAT,
#endif
......@@ -141,7 +143,9 @@ enum pid_directory_inos {
PROC_TID_NUMA_MAPS,
PROC_TID_MOUNTS,
PROC_TID_WCHAN,
#ifdef CONFIG_MMU
PROC_TID_SMAPS,
#endif
#ifdef CONFIG_SCHEDSTATS
PROC_TID_SCHEDSTAT,
#endif
......@@ -195,7 +199,9 @@ static struct pid_entry tgid_base_stuff[] = {
E(PROC_TGID_ROOT, "root", S_IFLNK|S_IRWXUGO),
E(PROC_TGID_EXE, "exe", S_IFLNK|S_IRWXUGO),
E(PROC_TGID_MOUNTS, "mounts", S_IFREG|S_IRUGO),
#ifdef CONFIG_MMU
E(PROC_TGID_SMAPS, "smaps", S_IFREG|S_IRUGO),
#endif
#ifdef CONFIG_SECURITY
E(PROC_TGID_ATTR, "attr", S_IFDIR|S_IRUGO|S_IXUGO),
#endif
......@@ -235,7 +241,9 @@ static struct pid_entry tid_base_stuff[] = {
E(PROC_TID_ROOT, "root", S_IFLNK|S_IRWXUGO),
E(PROC_TID_EXE, "exe", S_IFLNK|S_IRWXUGO),
E(PROC_TID_MOUNTS, "mounts", S_IFREG|S_IRUGO),
#ifdef CONFIG_MMU
E(PROC_TID_SMAPS, "smaps", S_IFREG|S_IRUGO),
#endif
#ifdef CONFIG_SECURITY
E(PROC_TID_ATTR, "attr", S_IFDIR|S_IRUGO|S_IXUGO),
#endif
......@@ -630,6 +638,7 @@ static struct file_operations proc_numa_maps_operations = {
};
#endif
#ifdef CONFIG_MMU
extern struct seq_operations proc_pid_smaps_op;
static int smaps_open(struct inode *inode, struct file *file)
{
......@@ -648,6 +657,7 @@ static struct file_operations proc_smaps_operations = {
.llseek = seq_lseek,
.release = seq_release,
};
#endif
extern struct seq_operations mounts_op;
static int mounts_open(struct inode *inode, struct file *file)
......@@ -1681,10 +1691,12 @@ static struct dentry *proc_pident_lookup(struct inode *dir,
case PROC_TGID_MOUNTS:
inode->i_fop = &proc_mounts_operations;
break;
#ifdef CONFIG_MMU
case PROC_TID_SMAPS:
case PROC_TGID_SMAPS:
inode->i_fop = &proc_smaps_operations;
break;
#endif
#ifdef CONFIG_SECURITY
case PROC_TID_ATTR:
inode->i_nlink = 2;
......
include/asm-arm/arch-pxa/pxa-regs.h
浏览文件 @ 7946ada3
......@@ -126,8 +126,8 @@
#define DRCMR12 __REG(0x40000130) /* Request to Channel Map Register for AC97 audio transmit Request */
#define DRCMR13 __REG(0x40000134) /* Request to Channel Map Register for SSP receive Request */
#define DRCMR14 __REG(0x40000138) /* Request to Channel Map Register for SSP transmit Request */
#define DRCMR15 __REG(0x4000013c) /* Reserved */
#define DRCMR16 __REG(0x40000140) /* Reserved */
#define DRCMR15 __REG(0x4000013c) /* Request to Channel Map Register for SSP2 receive Request */
#define DRCMR16 __REG(0x40000140) /* Request to Channel Map Register for SSP2 transmit Request */
#define DRCMR17 __REG(0x40000144) /* Request to Channel Map Register for ICP receive Request */
#define DRCMR18 __REG(0x40000148) /* Request to Channel Map Register for ICP transmit Request */
#define DRCMR19 __REG(0x4000014c) /* Request to Channel Map Register for STUART receive Request */
......@@ -151,7 +151,8 @@
#define DRCMR37 __REG(0x40000194) /* Request to Channel Map Register for USB endpoint 13 Request */
#define DRCMR38 __REG(0x40000198) /* Request to Channel Map Register for USB endpoint 14 Request */
#define DRCMR39 __REG(0x4000019C) /* Reserved */
#define DRCMR66 __REG(0x40001108) /* Request to Channel Map Register for SSP3 receive Request */
#define DRCMR67 __REG(0x4000110C) /* Request to Channel Map Register for SSP3 transmit Request */
#define DRCMR68 __REG(0x40001110) /* Request to Channel Map Register for Camera FIFO 0 Request */
#define DRCMR69 __REG(0x40001114) /* Request to Channel Map Register for Camera FIFO 1 Request */
#define DRCMR70 __REG(0x40001118) /* Request to Channel Map Register for Camera FIFO 2 Request */
......
include/asm-arm/arch-pxa/pxafb.h
浏览文件 @ 7946ada3
......@@ -66,4 +66,5 @@ struct pxafb_mach_info {
};
void set_pxa_fb_info(struct pxafb_mach_info *hard_pxa_fb_info);
void set_pxa_fb_parent(struct device *parent_dev);
unsigned long pxafb_get_hsync_time(struct device *dev);
include/asm-arm/arch-s3c2410/hardware.h
浏览文件 @ 7946ada3
......@@ -92,6 +92,13 @@ extern unsigned int s3c2410_gpio_getpin(unsigned int pin);
extern unsigned int s3c2410_modify_misccr(unsigned int clr, unsigned int chg);
#ifdef CONFIG_CPU_S3C2440
extern int s3c2440_set_dsc(unsigned int pin, unsigned int value);
#endif /* CONFIG_CPU_S3C2440 */
#endif /* __ASSEMBLY__ */
#include <asm/sizes.h>
......
include/asm-arm/arch-s3c2410/io.h
浏览文件 @ 7946ada3
......@@ -9,7 +9,7 @@
* 06-Dec-1997 RMK Created.
* 02-Sep-2003 BJD Modified for S3C2410
* 10-Mar-2005 LCVR Changed S3C2410_VA to S3C24XX_VA
*
* 13-Oct-2005 BJD Fixed problems with LDRH/STRH offset range
*/
#ifndef __ASM_ARM_ARCH_IO_H
......@@ -117,11 +117,23 @@ DECLARE_IO(int,l,"")
#define __outwc(value,port) \
({ \
unsigned long v = value; \
if (__PORT_PCIO((port))) \
if (__PORT_PCIO((port))) { \
if ((port) < 256 && (port) > -256) \
__asm__ __volatile__( \
"strh %0, [%1, %2] @ outwc" \
: : "r" (v), "r" (PCIO_BASE), "Jr" ((port))); \
else if ((port) > 0) \
__asm__ __volatile__( \
"strh %0, [%1, %2] @ outwc" \
: : "r" (v), \
"r" (PCIO_BASE + ((port) & ~0xff)), \
"Jr" (((port) & 0xff))); \
else \
__asm__ __volatile__( \
"strh %0, [%1, #0] @ outwc" \
: : "r" (v), \
"r" (PCIO_BASE + (port))); \
} else \
__asm__ __volatile__( \
"strh %0, [%1, #0] @ outwc" \
: : "r" (v), "r" ((port))); \
......@@ -130,11 +142,25 @@ DECLARE_IO(int,l,"")
#define __inwc(port) \
({ \
unsigned short result; \
if (__PORT_PCIO((port))) \
if (__PORT_PCIO((port))) { \
if ((port) < 256 && (port) > -256 ) \
__asm__ __volatile__( \
"ldrh %0, [%1, %2] @ inwc" \
: "=r" (result) : "r" (PCIO_BASE), "Jr" ((port))); \
: "=r" (result) \
: "r" (PCIO_BASE), \
"Jr" ((port))); \
else if ((port) > 0) \
__asm__ __volatile__( \
"ldrh %0, [%1, %2] @ inwc" \
: "=r" (result) \
: "r" (PCIO_BASE + ((port) & ~0xff)), \
"Jr" (((port) & 0xff))); \
else \
__asm__ __volatile__( \
"ldrh %0, [%1, #0] @ inwc" \
: "=r" (result) \
: "r" (PCIO_BASE + ((port)))); \
} else \
__asm__ __volatile__( \
"ldrh %0, [%1, #0] @ inwc" \
: "=r" (result) : "r" ((port))); \
......
include/asm-powerpc/timex.h
浏览文件 @ 7946ada3
......@@ -10,7 +10,7 @@
#include <linux/config.h>
#include <asm/cputable.h>
#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
#define CLOCK_TICK_RATE 1024000 /* Underlying HZ */
typedef unsigned long cycles_t;
......
include/asm-ppc/cputable.h
浏览文件 @ 7946ada3
......@@ -24,6 +24,7 @@
#define PPC_FEATURE_HAS_SPE 0x00800000
#define PPC_FEATURE_HAS_EFP_SINGLE 0x00400000
#define PPC_FEATURE_HAS_EFP_DOUBLE 0x00200000
#define PPC_FEATURE_NO_TB 0x00100000
#ifdef __KERNEL__
......
include/asm-sparc64/pbm.h
浏览文件 @ 7946ada3
......@@ -27,23 +27,27 @@
* PCI bus.
*/
#define PBM_LOGCLUSTERS 3
#define PBM_NCLUSTERS (1 << PBM_LOGCLUSTERS)
struct pci_controller_info;
/* This contains the software state necessary to drive a PCI
* controller's IOMMU.
*/
struct pci_iommu_arena {
unsigned long *map;
unsigned int hint;
unsigned int limit;
};
struct pci_iommu {
/* This protects the controller's IOMMU and all
* streaming buffers underneath.
*/
spinlock_t lock;
struct pci_iommu_arena arena;
/* IOMMU page table, a linear array of ioptes. */
iopte_t *page_table; /* The page table itself. */
int page_table_sz_bits; /* log2 of ow many pages does it map? */
/* Base PCI memory space address where IOMMU mappings
* begin.
......@@ -62,12 +66,6 @@ struct pci_iommu {
*/
unsigned long write_complete_reg;
/* The lowest used consistent mapping entry. Since
* we allocate consistent maps out of cluster 0 this
* is relative to the beginning of closter 0.
*/
u32 lowest_consistent_map;
/* In order to deal with some buggy third-party PCI bridges that
* do wrong prefetching, we never mark valid mappings as invalid.
* Instead we point them at this dummy page.
......@@ -75,16 +73,6 @@ struct pci_iommu {
unsigned long dummy_page;
unsigned long dummy_page_pa;
/* If PBM_NCLUSTERS is ever decreased to 4 or lower,
* or if largest supported page_table_sz * 8K goes above
* 2GB, you must increase the size of the type of
* these counters. You have been duly warned. -DaveM
*/
struct {
u16 next;
u16 flush;
} alloc_info[PBM_NCLUSTERS];
/* CTX allocation. */
unsigned long ctx_lowest_free;
unsigned long ctx_bitmap[IOMMU_NUM_CTXS / (sizeof(unsigned long) * 8)];
......@@ -102,7 +90,7 @@ struct pci_iommu {
u32 dma_addr_mask;
};
extern void pci_iommu_table_init(struct pci_iommu *, int);
extern void pci_iommu_table_init(struct pci_iommu *iommu, int tsbsize, u32 dma_offset, u32 dma_addr_mask);
/* This describes a PCI bus module's streaming buffer. */
struct pci_strbuf {
......
include/linux/acct.h
浏览文件 @ 7946ada3
......@@ -162,13 +162,13 @@ typedef struct acct acct_t;
#ifdef __KERNEL__
/*
* Yet another set of HZ to *HZ helper functions.
* See <linux/times.h> for the original.
* See <linux/jiffies.h> for the original.
*/
static inline u32 jiffies_to_AHZ(unsigned long x)
{
#if (TICK_NSEC % (NSEC_PER_SEC / AHZ)) == 0
return x / (HZ / USER_HZ);
return x / (HZ / AHZ);
#else
u64 tmp = (u64)x * TICK_NSEC;
do_div(tmp, (NSEC_PER_SEC / AHZ));
......
include/linux/cpumask.h
浏览文件 @ 7946ada3
......@@ -392,4 +392,14 @@ extern cpumask_t cpu_present_map;
#define for_each_online_cpu(cpu) for_each_cpu_mask((cpu), cpu_online_map)
#define for_each_present_cpu(cpu) for_each_cpu_mask((cpu), cpu_present_map)
/* Find the highest possible smp_processor_id() */
#define highest_possible_processor_id() \
({ \
unsigned int cpu, highest = 0; \
for_each_cpu_mask(cpu, cpu_possible_map) \
highest = cpu; \
highest; \
})
#endif /* __LINUX_CPUMASK_H */
include/linux/netfilter/nfnetlink.h
浏览文件 @ 7946ada3
......@@ -41,11 +41,15 @@ enum nfnetlink_groups {
struct nfattr
{
u_int16_t nfa_len;
u_int16_t nfa_type;
u_int16_t nfa_type; /* we use 15 bits for the type, and the highest
* bit to indicate whether the payload is nested */
} __attribute__ ((packed));
/* FIXME: Shamelessly copy and pasted from rtnetlink.h, it's time
* to put this in a generic file */
/* FIXME: Apart from NFNL_NFA_NESTED shamelessly copy and pasted from
* rtnetlink.h, it's time to put this in a generic file */
#define NFNL_NFA_NEST 0x8000
#define NFA_TYPE(attr) ((attr)->nfa_type & 0x7fff)
#define NFA_ALIGNTO 4
#define NFA_ALIGN(len) (((len) + NFA_ALIGNTO - 1) & ~(NFA_ALIGNTO - 1))
......@@ -59,7 +63,7 @@ struct nfattr
#define NFA_PAYLOAD(nfa) ((int)((nfa)->nfa_len) - NFA_LENGTH(0))
#define NFA_NEST(skb, type) \
({ struct nfattr *__start = (struct nfattr *) (skb)->tail; \
NFA_PUT(skb, type, 0, NULL); \
NFA_PUT(skb, (NFNL_NFA_NEST | type), 0, NULL); \
__start; })
#define NFA_NEST_END(skb, start) \
({ (start)->nfa_len = ((skb)->tail - (unsigned char *) (start)); \
......
include/linux/netfilter/nfnetlink_conntrack.h
浏览文件 @ 7946ada3
......@@ -70,15 +70,24 @@ enum ctattr_l4proto {
enum ctattr_protoinfo {
CTA_PROTOINFO_UNSPEC,
CTA_PROTOINFO_TCP_STATE,
CTA_PROTOINFO_TCP,
__CTA_PROTOINFO_MAX
};
#define CTA_PROTOINFO_MAX (__CTA_PROTOINFO_MAX - 1)
enum ctattr_protoinfo_tcp {
CTA_PROTOINFO_TCP_UNSPEC,
CTA_PROTOINFO_TCP_STATE,
__CTA_PROTOINFO_TCP_MAX
};
#define CTA_PROTOINFO_TCP_MAX (__CTA_PROTOINFO_TCP_MAX - 1)
enum ctattr_counters {
CTA_COUNTERS_UNSPEC,
CTA_COUNTERS_PACKETS,
CTA_COUNTERS_BYTES,
CTA_COUNTERS_PACKETS, /* old 64bit counters */
CTA_COUNTERS_BYTES, /* old 64bit counters */
CTA_COUNTERS32_PACKETS,
CTA_COUNTERS32_BYTES,
__CTA_COUNTERS_MAX
};
#define CTA_COUNTERS_MAX (__CTA_COUNTERS_MAX - 1)
......
include/linux/netfilter_ipv4/ip_conntrack.h
浏览文件 @ 7946ada3
......@@ -117,6 +117,10 @@ enum ip_conntrack_events
/* NAT info */
IPCT_NATINFO_BIT = 10,
IPCT_NATINFO = (1 << IPCT_NATINFO_BIT),
/* Counter highest bit has been set */
IPCT_COUNTER_FILLING_BIT = 11,
IPCT_COUNTER_FILLING = (1 << IPCT_COUNTER_FILLING_BIT),
};
enum ip_conntrack_expect_events {
......@@ -192,8 +196,8 @@ do { \
struct ip_conntrack_counter
{
u_int64_t packets;
u_int64_t bytes;
u_int32_t packets;
u_int32_t bytes;
};
struct ip_conntrack_helper;
......
include/linux/netfilter_ipv4/ip_conntrack_protocol.h
浏览文件 @ 7946ada3
......@@ -52,6 +52,9 @@ struct ip_conntrack_protocol
int (*to_nfattr)(struct sk_buff *skb, struct nfattr *nfa,
const struct ip_conntrack *ct);
/* convert nfnetlink attributes to protoinfo */
int (*from_nfattr)(struct nfattr *tb[], struct ip_conntrack *ct);
int (*tuple_to_nfattr)(struct sk_buff *skb,
const struct ip_conntrack_tuple *t);
int (*nfattr_to_tuple)(struct nfattr *tb[],
......
include/linux/netfilter_ipv4/ip_conntrack_tuple.h
浏览文件 @ 7946ada3
#ifndef _IP_CONNTRACK_TUPLE_H
#define _IP_CONNTRACK_TUPLE_H
#include <linux/types.h>
/* A `tuple' is a structure containing the information to uniquely
identify a connection. ie. if two packets have the same tuple, they
are in the same connection; if not, they are not.
......
include/linux/netfilter_ipv4/ip_nat.h
浏览文件 @ 7946ada3
......@@ -58,10 +58,6 @@ extern rwlock_t ip_nat_lock;
struct ip_nat_info
{
struct list_head bysource;
/* Helper (NULL if none). */
struct ip_nat_helper *helper;
struct ip_nat_seq seq[IP_CT_DIR_MAX];
};
......
include/linux/netpoll.h
浏览文件 @ 7946ada3
......@@ -86,7 +86,7 @@ static inline void netpoll_poll_unlock(void *have)
#else
#define netpoll_rx(a) 0
#define netpoll_poll_lock(a) 0
#define netpoll_poll_lock(a) NULL
#define netpoll_poll_unlock(a)
#endif
......
include/net/inet_timewait_sock.h
浏览文件 @ 7946ada3
......@@ -19,6 +19,7 @@
#include <linux/ip.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/timer.h>
#include <linux/types.h>
#include <linux/workqueue.h>
......@@ -193,11 +194,13 @@ static inline u32 inet_rcv_saddr(const struct sock *sk)
static inline void inet_twsk_put(struct inet_timewait_sock *tw)
{
if (atomic_dec_and_test(&tw->tw_refcnt)) {
struct module *owner = tw->tw_prot->owner;
#ifdef SOCK_REFCNT_DEBUG
printk(KERN_DEBUG "%s timewait_sock %p released\n",
tw->tw_prot->name, tw);
#endif
kmem_cache_free(tw->tw_prot->twsk_slab, tw);
module_put(owner);
}
}
......
kernel/time.c
浏览文件 @ 7946ada3
......@@ -570,6 +570,7 @@ void getnstimeofday(struct timespec *tv)
tv->tv_sec = x.tv_sec;
tv->tv_nsec = x.tv_usec * NSEC_PER_USEC;
}
EXPORT_SYMBOL_GPL(getnstimeofday);
#endif
#if (BITS_PER_LONG < 64)
......
mm/fremap.c
浏览文件 @ 7946ada3
......@@ -89,6 +89,9 @@ int install_page(struct mm_struct *mm, struct vm_area_struct *vma,
size = (i_size_read(inode) + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
if (!page->mapping || page->index >= size)
goto err_unlock;
err = -ENOMEM;
if (page_mapcount(page) > INT_MAX/2)
goto err_unlock;
zap_pte(mm, vma, addr, pte);
......
mm/madvise.c
浏览文件 @ 7946ada3
......@@ -83,6 +83,9 @@ static long madvise_willneed(struct vm_area_struct * vma,
{
struct file *file = vma->vm_file;
if (!file)
return -EBADF;
if (file->f_mapping->a_ops->get_xip_page) {
/* no bad return value, but ignore advice */
return 0;
......@@ -141,11 +144,7 @@ static long
madvise_vma(struct vm_area_struct *vma, struct vm_area_struct **prev,
unsigned long start, unsigned long end, int behavior)
{
struct file *filp = vma->vm_file;
long error = -EBADF;
if (!filp)
goto out;
long error;
switch (behavior) {
case MADV_NORMAL:
......@@ -166,8 +165,6 @@ madvise_vma(struct vm_area_struct *vma, struct vm_area_struct **prev,
error = -EINVAL;
break;
}
out:
return error;
}
......
mm/vmscan.c
浏览文件 @ 7946ada3
......@@ -511,10 +511,11 @@ static int shrink_list(struct list_head *page_list, struct scan_control *sc)
* PageDirty _after_ making sure that the page is freeable and
* not in use by anybody. (pagecache + us == 2)
*/
if (page_count(page) != 2 || PageDirty(page)) {
write_unlock_irq(&mapping->tree_lock);
goto keep_locked;
}
if (unlikely(page_count(page) != 2))
goto cannot_free;
smp_rmb();
if (unlikely(PageDirty(page)))
goto cannot_free;
#ifdef CONFIG_SWAP
if (PageSwapCache(page)) {
......@@ -538,6 +539,10 @@ static int shrink_list(struct list_head *page_list, struct scan_control *sc)
__pagevec_release_nonlru(&freed_pvec);
continue;
cannot_free:
write_unlock_irq(&mapping->tree_lock);
goto keep_locked;
activate_locked:
SetPageActive(page);
pgactivate++;
......
net/bridge/br_if.c
浏览文件 @ 7946ada3
......@@ -79,7 +79,6 @@ static void destroy_nbp(struct net_bridge_port *p)
{
struct net_device *dev = p->dev;
dev->br_port = NULL;
p->br = NULL;
p->dev = NULL;
dev_put(dev);
......@@ -100,6 +99,7 @@ static void del_nbp(struct net_bridge_port *p)
struct net_bridge *br = p->br;
struct net_device *dev = p->dev;
dev->br_port = NULL;
dev_set_promiscuity(dev, -1);
spin_lock_bh(&br->lock);
......
net/bridge/netfilter/ebtables.c
浏览文件 @ 7946ada3
......@@ -26,6 +26,7 @@
#include <linux/spinlock.h>
#include <asm/uaccess.h>
#include <linux/smp.h>
#include <linux/cpumask.h>
#include <net/sock.h>
/* needed for logical [in,out]-dev filtering */
#include "../br_private.h"
......@@ -823,10 +824,11 @@ static int translate_table(struct ebt_replace *repl,
/* this will get free'd in do_replace()/ebt_register_table()
if an error occurs */
newinfo->chainstack = (struct ebt_chainstack **)
vmalloc(num_possible_cpus() * sizeof(struct ebt_chainstack));
vmalloc((highest_possible_processor_id()+1)
* sizeof(struct ebt_chainstack));
if (!newinfo->chainstack)
return -ENOMEM;
for (i = 0; i < num_possible_cpus(); i++) {
for_each_cpu(i) {
newinfo->chainstack[i] =
vmalloc(udc_cnt * sizeof(struct ebt_chainstack));
if (!newinfo->chainstack[i]) {
......@@ -896,8 +898,11 @@ static void get_counters(struct ebt_counter *oldcounters,
/* counters of cpu 0 */
memcpy(counters, oldcounters,
sizeof(struct ebt_counter) * nentries);
/* add other counters to those of cpu 0 */
for (cpu = 1; cpu < num_possible_cpus(); cpu++) {
for_each_cpu(cpu) {
if (cpu == 0)
continue;
counter_base = COUNTER_BASE(oldcounters, nentries, cpu);
for (i = 0; i < nentries; i++) {
counters[i].pcnt += counter_base[i].pcnt;
......@@ -929,7 +934,8 @@ static int do_replace(void __user *user, unsigned int len)
BUGPRINT("Entries_size never zero\n");
return -EINVAL;
}
countersize = COUNTER_OFFSET(tmp.nentries) * num_possible_cpus();
countersize = COUNTER_OFFSET(tmp.nentries) *
(highest_possible_processor_id()+1);
newinfo = (struct ebt_table_info *)
vmalloc(sizeof(struct ebt_table_info) + countersize);
if (!newinfo)
......@@ -1022,7 +1028,7 @@ static int do_replace(void __user *user, unsigned int len)
vfree(table->entries);
if (table->chainstack) {
for (i = 0; i < num_possible_cpus(); i++)
for_each_cpu(i)
vfree(table->chainstack[i]);
vfree(table->chainstack);
}
......@@ -1040,7 +1046,7 @@ static int do_replace(void __user *user, unsigned int len)
vfree(counterstmp);
/* can be initialized in translate_table() */
if (newinfo->chainstack) {
for (i = 0; i < num_possible_cpus(); i++)
for_each_cpu(i)
vfree(newinfo->chainstack[i]);
vfree(newinfo->chainstack);
}
......@@ -1132,7 +1138,8 @@ int ebt_register_table(struct ebt_table *table)
return -EINVAL;
}
countersize = COUNTER_OFFSET(table->table->nentries) * num_possible_cpus();
countersize = COUNTER_OFFSET(table->table->nentries) *
(highest_possible_processor_id()+1);
newinfo = (struct ebt_table_info *)
vmalloc(sizeof(struct ebt_table_info) + countersize);
ret = -ENOMEM;
......@@ -1186,7 +1193,7 @@ int ebt_register_table(struct ebt_table *table)
up(&ebt_mutex);
free_chainstack:
if (newinfo->chainstack) {
for (i = 0; i < num_possible_cpus(); i++)
for_each_cpu(i)
vfree(newinfo->chainstack[i]);
vfree(newinfo->chainstack);
}
......@@ -1209,7 +1216,7 @@ void ebt_unregister_table(struct ebt_table *table)
up(&ebt_mutex);
vfree(table->private->entries);
if (table->private->chainstack) {
for (i = 0; i < num_possible_cpus(); i++)
for_each_cpu(i)
vfree(table->private->chainstack[i]);
vfree(table->private->chainstack);
}
......
net/dccp/ccid.h
浏览文件 @ 7946ada3
......@@ -110,14 +110,14 @@ static inline int ccid_hc_tx_init(struct ccid *ccid, struct sock *sk)
static inline void ccid_hc_rx_exit(struct ccid *ccid, struct sock *sk)
{
if (ccid->ccid_hc_rx_exit != NULL &&
if (ccid != NULL && ccid->ccid_hc_rx_exit != NULL &&
dccp_sk(sk)->dccps_hc_rx_ccid_private != NULL)
ccid->ccid_hc_rx_exit(sk);
}
static inline void ccid_hc_tx_exit(struct ccid *ccid, struct sock *sk)
{
if (ccid->ccid_hc_tx_exit != NULL &&
if (ccid != NULL && ccid->ccid_hc_tx_exit != NULL &&
dccp_sk(sk)->dccps_hc_tx_ccid_private != NULL)
ccid->ccid_hc_tx_exit(sk);
}
......
net/dccp/input.c
浏览文件 @ 7946ada3
......@@ -375,6 +375,9 @@ static int dccp_rcv_respond_partopen_state_process(struct sock *sk,
case DCCP_PKT_RESET:
inet_csk_clear_xmit_timer(sk, ICSK_TIME_DACK);
break;
case DCCP_PKT_DATA:
if (sk->sk_state == DCCP_RESPOND)
break;
case DCCP_PKT_DATAACK:
case DCCP_PKT_ACK:
/*
......@@ -393,7 +396,8 @@ static int dccp_rcv_respond_partopen_state_process(struct sock *sk,
dccp_sk(sk)->dccps_osr = DCCP_SKB_CB(skb)->dccpd_seq;
dccp_set_state(sk, DCCP_OPEN);
if (dh->dccph_type == DCCP_PKT_DATAACK) {
if (dh->dccph_type == DCCP_PKT_DATAACK ||
dh->dccph_type == DCCP_PKT_DATA) {
dccp_rcv_established(sk, skb, dh, len);
queued = 1; /* packet was queued
(by dccp_rcv_established) */
......
net/ipv4/esp4.c
浏览文件 @ 7946ada3
......@@ -5,6 +5,7 @@
#include <net/esp.h>
#include <asm/scatterlist.h>
#include <linux/crypto.h>
#include <linux/kernel.h>
#include <linux/pfkeyv2.h>
#include <linux/random.h>
#include <net/icmp.h>
......@@ -42,10 +43,10 @@ static int esp_output(struct xfrm_state *x, struct sk_buff *skb)
esp = x->data;
alen = esp->auth.icv_trunc_len;
tfm = esp->conf.tfm;
blksize = (crypto_tfm_alg_blocksize(tfm) + 3) & ~3;
clen = (clen + 2 + blksize-1)&~(blksize-1);
blksize = ALIGN(crypto_tfm_alg_blocksize(tfm), 4);
clen = ALIGN(clen + 2, blksize);
if (esp->conf.padlen)
clen = (clen + esp->conf.padlen-1)&~(esp->conf.padlen-1);
clen = ALIGN(clen, esp->conf.padlen);
if ((nfrags = skb_cow_data(skb, clen-skb->len+alen, &trailer)) < 0)
goto error;
......@@ -143,7 +144,7 @@ static int esp_input(struct xfrm_state *x, struct xfrm_decap_state *decap, struc
struct ip_esp_hdr *esph;
struct esp_data *esp = x->data;
struct sk_buff *trailer;
int blksize = crypto_tfm_alg_blocksize(esp->conf.tfm);
int blksize = ALIGN(crypto_tfm_alg_blocksize(esp->conf.tfm), 4);
int alen = esp->auth.icv_trunc_len;
int elen = skb->len - sizeof(struct ip_esp_hdr) - esp->conf.ivlen - alen;
int nfrags;
......@@ -304,16 +305,16 @@ static int esp_post_input(struct xfrm_state *x, struct xfrm_decap_state *decap,
static u32 esp4_get_max_size(struct xfrm_state *x, int mtu)
{
struct esp_data *esp = x->data;
u32 blksize = crypto_tfm_alg_blocksize(esp->conf.tfm);
u32 blksize = ALIGN(crypto_tfm_alg_blocksize(esp->conf.tfm), 4);
if (x->props.mode) {
mtu = (mtu + 2 + blksize-1)&~(blksize-1);
mtu = ALIGN(mtu + 2, blksize);
} else {
/* The worst case. */
mtu += 2 + blksize;
mtu = ALIGN(mtu + 2, 4) + blksize - 4;
}
if (esp->conf.padlen)
mtu = (mtu + esp->conf.padlen-1)&~(esp->conf.padlen-1);
mtu = ALIGN(mtu, esp->conf.padlen);
return mtu + x->props.header_len + esp->auth.icv_trunc_len;
}
......
net/ipv4/inet_timewait_sock.c
浏览文件 @ 7946ada3
......@@ -111,6 +111,7 @@ struct inet_timewait_sock *inet_twsk_alloc(const struct sock *sk, const int stat
tw->tw_prot = sk->sk_prot_creator;
atomic_set(&tw->tw_refcnt, 1);
inet_twsk_dead_node_init(tw);
__module_get(tw->tw_prot->owner);
}
return tw;
......
net/ipv4/netfilter/Kconfig
浏览文件 @ 7946ada3
......@@ -139,6 +139,7 @@ config IP_NF_AMANDA
config IP_NF_PPTP
tristate 'PPTP protocol support'
depends on IP_NF_CONNTRACK
help
This module adds support for PPTP (Point to Point Tunnelling
Protocol, RFC2637) connection tracking and NAT.
......@@ -498,9 +499,14 @@ config IP_NF_TARGET_LOG
To compile it as a module, choose M here. If unsure, say N.
config IP_NF_TARGET_ULOG
tristate "ULOG target support"
tristate "ULOG target support (OBSOLETE)"
depends on IP_NF_IPTABLES
---help---
This option enables the old IPv4-only "ipt_ULOG" implementation
which has been obsoleted by the new "nfnetlink_log" code (see
CONFIG_NETFILTER_NETLINK_LOG).
This option adds a `ULOG' target, which allows you to create rules in
any iptables table. The packet is passed to a userspace logging
daemon using netlink multicast sockets; unlike the LOG target
......
net/ipv4/netfilter/arp_tables.c
浏览文件 @ 7946ada3
......@@ -716,8 +716,10 @@ static int translate_table(const char *name,
}
/* And one copy for every other CPU */
for (i = 1; i < num_possible_cpus(); i++) {
memcpy(newinfo->entries + SMP_ALIGN(newinfo->size)*i,
for_each_cpu(i) {
if (i == 0)
continue;
memcpy(newinfo->entries + SMP_ALIGN(newinfo->size) * i,
newinfo->entries,
SMP_ALIGN(newinfo->size));
}
......@@ -767,7 +769,7 @@ static void get_counters(const struct arpt_table_info *t,
unsigned int cpu;
unsigned int i;
for (cpu = 0; cpu < num_possible_cpus(); cpu++) {
for_each_cpu(cpu) {
i = 0;
ARPT_ENTRY_ITERATE(t->entries + TABLE_OFFSET(t, cpu),
t->size,
......@@ -885,7 +887,8 @@ static int do_replace(void __user *user, unsigned int len)
return -ENOMEM;
newinfo = vmalloc(sizeof(struct arpt_table_info)
+ SMP_ALIGN(tmp.size) * num_possible_cpus());
+ SMP_ALIGN(tmp.size) *
(highest_possible_processor_id()+1));
if (!newinfo)
return -ENOMEM;
......@@ -1158,7 +1161,8 @@ int arpt_register_table(struct arpt_table *table,
= { 0, 0, 0, { 0 }, { 0 }, { } };
newinfo = vmalloc(sizeof(struct arpt_table_info)
+ SMP_ALIGN(repl->size) * num_possible_cpus());
+ SMP_ALIGN(repl->size) *
(highest_possible_processor_id()+1));
if (!newinfo) {
ret = -ENOMEM;
return ret;
......
net/ipv4/netfilter/ip_conntrack_core.c
浏览文件 @ 7946ada3
......@@ -1119,7 +1119,7 @@ void __ip_ct_refresh_acct(struct ip_conntrack *ct,
unsigned long extra_jiffies,
int do_acct)
{
int do_event = 0;
int event = 0;
IP_NF_ASSERT(ct->timeout.data == (unsigned long)ct);
IP_NF_ASSERT(skb);
......@@ -1129,13 +1129,13 @@ void __ip_ct_refresh_acct(struct ip_conntrack *ct,
/* If not in hash table, timer will not be active yet */
if (!is_confirmed(ct)) {
ct->timeout.expires = extra_jiffies;
do_event = 1;
event = IPCT_REFRESH;
} else {
/* Need del_timer for race avoidance (may already be dying). */
if (del_timer(&ct->timeout)) {
ct->timeout.expires = jiffies + extra_jiffies;
add_timer(&ct->timeout);
do_event = 1;
event = IPCT_REFRESH;
}
}
......@@ -1144,14 +1144,17 @@ void __ip_ct_refresh_acct(struct ip_conntrack *ct,
ct->counters[CTINFO2DIR(ctinfo)].packets++;
ct->counters[CTINFO2DIR(ctinfo)].bytes +=
ntohs(skb->nh.iph->tot_len);
if ((ct->counters[CTINFO2DIR(ctinfo)].packets & 0x80000000)
|| (ct->counters[CTINFO2DIR(ctinfo)].bytes & 0x80000000))
event |= IPCT_COUNTER_FILLING;
}
#endif
write_unlock_bh(&ip_conntrack_lock);
/* must be unlocked when calling event cache */
if (do_event)
ip_conntrack_event_cache(IPCT_REFRESH, skb);
if (event)
ip_conntrack_event_cache(event, skb);
}
#if defined(CONFIG_IP_NF_CONNTRACK_NETLINK) || \
......
net/ipv4/netfilter/ip_conntrack_netlink.c
浏览文件 @ 7946ada3
......@@ -177,11 +177,11 @@ ctnetlink_dump_counters(struct sk_buff *skb, const struct ip_conntrack *ct,
struct nfattr *nest_count = NFA_NEST(skb, type);
u_int64_t tmp;
tmp = cpu_to_be64(ct->counters[dir].packets);
NFA_PUT(skb, CTA_COUNTERS_PACKETS, sizeof(u_int64_t), &tmp);
tmp = htonl(ct->counters[dir].packets);
NFA_PUT(skb, CTA_COUNTERS32_PACKETS, sizeof(u_int32_t), &tmp);
tmp = cpu_to_be64(ct->counters[dir].bytes);
NFA_PUT(skb, CTA_COUNTERS_BYTES, sizeof(u_int64_t), &tmp);
tmp = htonl(ct->counters[dir].bytes);
NFA_PUT(skb, CTA_COUNTERS32_BYTES, sizeof(u_int32_t), &tmp);
NFA_NEST_END(skb, nest_count);
......@@ -833,7 +833,8 @@ ctnetlink_get_conntrack(struct sock *ctnl, struct sk_buff *skb,
static inline int
ctnetlink_change_status(struct ip_conntrack *ct, struct nfattr *cda[])
{
unsigned long d, status = *(u_int32_t *)NFA_DATA(cda[CTA_STATUS-1]);
unsigned long d;
unsigned status = ntohl(*(u_int32_t *)NFA_DATA(cda[CTA_STATUS-1]));
d = ct->status ^ status;
if (d & (IPS_EXPECTED|IPS_CONFIRMED|IPS_DYING))
......@@ -948,6 +949,31 @@ ctnetlink_change_timeout(struct ip_conntrack *ct, struct nfattr *cda[])
return 0;
}
static inline int
ctnetlink_change_protoinfo(struct ip_conntrack *ct, struct nfattr *cda[])
{
struct nfattr *tb[CTA_PROTOINFO_MAX], *attr = cda[CTA_PROTOINFO-1];
struct ip_conntrack_protocol *proto;
u_int16_t npt = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum;
int err = 0;
if (nfattr_parse_nested(tb, CTA_PROTOINFO_MAX, attr) < 0)
goto nfattr_failure;
proto = ip_conntrack_proto_find_get(npt);
if (!proto)
return -EINVAL;
if (proto->from_nfattr)
err = proto->from_nfattr(tb, ct);
ip_conntrack_proto_put(proto);
return err;
nfattr_failure:
return -ENOMEM;
}
static int
ctnetlink_change_conntrack(struct ip_conntrack *ct, struct nfattr *cda[])
{
......@@ -973,6 +999,12 @@ ctnetlink_change_conntrack(struct ip_conntrack *ct, struct nfattr *cda[])
return err;
}
if (cda[CTA_PROTOINFO-1]) {
err = ctnetlink_change_protoinfo(ct, cda);
if (err < 0)
return err;
}
DEBUGP("all done\n");
return 0;
}
......@@ -1002,6 +1034,12 @@ ctnetlink_create_conntrack(struct nfattr *cda[],
if (err < 0)
goto err;
if (cda[CTA_PROTOINFO-1]) {
err = ctnetlink_change_protoinfo(ct, cda);
if (err < 0)
return err;
}
ct->helper = ip_conntrack_helper_find_get(rtuple);
add_timer(&ct->timeout);
......
net/ipv4/netfilter/ip_conntrack_proto_icmp.c
浏览文件 @ 7946ada3
......@@ -296,8 +296,7 @@ static int icmp_nfattr_to_tuple(struct nfattr *tb[],
struct ip_conntrack_tuple *tuple)
{
if (!tb[CTA_PROTO_ICMP_TYPE-1]
|| !tb[CTA_PROTO_ICMP_CODE-1]
|| !tb[CTA_PROTO_ICMP_ID-1])
|| !tb[CTA_PROTO_ICMP_CODE-1])
return -1;
tuple->dst.u.icmp.type =
......
net/ipv4/netfilter/ip_conntrack_proto_tcp.c
浏览文件 @ 7946ada3
......@@ -341,17 +341,43 @@ static int tcp_print_conntrack(struct seq_file *s,
static int tcp_to_nfattr(struct sk_buff *skb, struct nfattr *nfa,
const struct ip_conntrack *ct)
{
struct nfattr *nest_parms = NFA_NEST(skb, CTA_PROTOINFO_TCP);
read_lock_bh(&tcp_lock);
NFA_PUT(skb, CTA_PROTOINFO_TCP_STATE, sizeof(u_int8_t),
&ct->proto.tcp.state);
read_unlock_bh(&tcp_lock);
NFA_NEST_END(skb, nest_parms);
return 0;
nfattr_failure:
read_unlock_bh(&tcp_lock);
return -1;
}
static int nfattr_to_tcp(struct nfattr *cda[], struct ip_conntrack *ct)
{
struct nfattr *attr = cda[CTA_PROTOINFO_TCP-1];
struct nfattr *tb[CTA_PROTOINFO_TCP_MAX];
if (nfattr_parse_nested(tb, CTA_PROTOINFO_TCP_MAX, attr) < 0)
goto nfattr_failure;
if (!tb[CTA_PROTOINFO_TCP_STATE-1])
return -EINVAL;
write_lock_bh(&tcp_lock);
ct->proto.tcp.state =
*(u_int8_t *)NFA_DATA(tb[CTA_PROTOINFO_TCP_STATE-1]);
write_unlock_bh(&tcp_lock);
return 0;
nfattr_failure:
return -1;
}
#endif
static unsigned int get_conntrack_index(const struct tcphdr *tcph)
......@@ -1123,6 +1149,7 @@ struct ip_conntrack_protocol ip_conntrack_protocol_tcp =
#if defined(CONFIG_IP_NF_CONNTRACK_NETLINK) || \
defined(CONFIG_IP_NF_CONNTRACK_NETLINK_MODULE)
.to_nfattr = tcp_to_nfattr,
.from_nfattr = nfattr_to_tcp,
.tuple_to_nfattr = ip_ct_port_tuple_to_nfattr,
.nfattr_to_tuple = ip_ct_port_nfattr_to_tuple,
#endif
......
net/ipv4/netfilter/ip_tables.c
浏览文件 @ 7946ada3
......@@ -27,6 +27,7 @@
#include <asm/semaphore.h>
#include <linux/proc_fs.h>
#include <linux/err.h>
#include <linux/cpumask.h>
#include <linux/netfilter_ipv4/ip_tables.h>
......@@ -921,8 +922,10 @@ translate_table(const char *name,
}
/* And one copy for every other CPU */
for (i = 1; i < num_possible_cpus(); i++) {
memcpy(newinfo->entries + SMP_ALIGN(newinfo->size)*i,
for_each_cpu(i) {
if (i == 0)
continue;
memcpy(newinfo->entries + SMP_ALIGN(newinfo->size) * i,
newinfo->entries,
SMP_ALIGN(newinfo->size));
}
......@@ -943,7 +946,7 @@ replace_table(struct ipt_table *table,
struct ipt_entry *table_base;
unsigned int i;
for (i = 0; i < num_possible_cpus(); i++) {
for_each_cpu(i) {
table_base =
(void *)newinfo->entries
+ TABLE_OFFSET(newinfo, i);
......@@ -990,7 +993,7 @@ get_counters(const struct ipt_table_info *t,
unsigned int cpu;
unsigned int i;
for (cpu = 0; cpu < num_possible_cpus(); cpu++) {
for_each_cpu(cpu) {
i = 0;
IPT_ENTRY_ITERATE(t->entries + TABLE_OFFSET(t, cpu),
t->size,
......@@ -1128,7 +1131,8 @@ do_replace(void __user *user, unsigned int len)
return -ENOMEM;
newinfo = vmalloc(sizeof(struct ipt_table_info)
+ SMP_ALIGN(tmp.size) * num_possible_cpus());
+ SMP_ALIGN(tmp.size) *
(highest_possible_processor_id()+1));
if (!newinfo)
return -ENOMEM;
......@@ -1458,7 +1462,8 @@ int ipt_register_table(struct ipt_table *table, const struct ipt_replace *repl)
= { 0, 0, 0, { 0 }, { 0 }, { } };
newinfo = vmalloc(sizeof(struct ipt_table_info)
+ SMP_ALIGN(repl->size) * num_possible_cpus());
+ SMP_ALIGN(repl->size) *
(highest_possible_processor_id()+1));
if (!newinfo)
return -ENOMEM;
......
net/ipv4/tcp_output.c
浏览文件 @ 7946ada3
......@@ -435,7 +435,16 @@ int tcp_fragment(struct sock *sk, struct sk_buff *skb, u32 len, unsigned int mss
int nsize, old_factor;
u16 flags;
BUG_ON(len >= skb->len);
if (unlikely(len >= skb->len)) {
if (net_ratelimit()) {
printk(KERN_DEBUG "TCP: seg_size=%u, mss=%u, seq=%u, "
"end_seq=%u, skb->len=%u.\n", len, mss_now,
TCP_SKB_CB(skb)->seq, TCP_SKB_CB(skb)->end_seq,
skb->len);
WARN_ON(1);
}
return 0;
}
nsize = skb_headlen(skb) - len;
if (nsize < 0)
......
net/ipv6/esp6.c
浏览文件 @ 7946ada3
......@@ -31,6 +31,7 @@
#include <net/esp.h>
#include <asm/scatterlist.h>
#include <linux/crypto.h>
#include <linux/kernel.h>
#include <linux/pfkeyv2.h>
#include <linux/random.h>
#include <net/icmp.h>
......@@ -66,10 +67,10 @@ static int esp6_output(struct xfrm_state *x, struct sk_buff *skb)
alen = esp->auth.icv_trunc_len;
tfm = esp->conf.tfm;
blksize = (crypto_tfm_alg_blocksize(tfm) + 3) & ~3;
clen = (clen + 2 + blksize-1)&~(blksize-1);
blksize = ALIGN(crypto_tfm_alg_blocksize(tfm), 4);
clen = ALIGN(clen + 2, blksize);
if (esp->conf.padlen)
clen = (clen + esp->conf.padlen-1)&~(esp->conf.padlen-1);
clen = ALIGN(clen, esp->conf.padlen);
if ((nfrags = skb_cow_data(skb, clen-skb->len+alen, &trailer)) < 0) {
goto error;
......@@ -133,7 +134,7 @@ static int esp6_input(struct xfrm_state *x, struct xfrm_decap_state *decap, stru
struct ipv6_esp_hdr *esph;
struct esp_data *esp = x->data;
struct sk_buff *trailer;
int blksize = crypto_tfm_alg_blocksize(esp->conf.tfm);
int blksize = ALIGN(crypto_tfm_alg_blocksize(esp->conf.tfm), 4);
int alen = esp->auth.icv_trunc_len;
int elen = skb->len - sizeof(struct ipv6_esp_hdr) - esp->conf.ivlen - alen;
......@@ -235,16 +236,17 @@ static int esp6_input(struct xfrm_state *x, struct xfrm_decap_state *decap, stru
static u32 esp6_get_max_size(struct xfrm_state *x, int mtu)
{
struct esp_data *esp = x->data;
u32 blksize = crypto_tfm_alg_blocksize(esp->conf.tfm);
u32 blksize = ALIGN(crypto_tfm_alg_blocksize(esp->conf.tfm), 4);
if (x->props.mode) {
mtu = (mtu + 2 + blksize-1)&~(blksize-1);
mtu = ALIGN(mtu + 2, blksize);
} else {
/* The worst case. */
mtu += 2 + blksize;
u32 padsize = ((blksize - 1) & 7) + 1;
mtu = ALIGN(mtu + 2, padsize) + blksize - padsize;
}
if (esp->conf.padlen)
mtu = (mtu + esp->conf.padlen-1)&~(esp->conf.padlen-1);
mtu = ALIGN(mtu, esp->conf.padlen);
return mtu + x->props.header_len + esp->auth.icv_full_len;
}
......
net/ipv6/netfilter/ip6_tables.c
浏览文件 @ 7946ada3
......@@ -28,6 +28,7 @@
#include <asm/uaccess.h>
#include <asm/semaphore.h>
#include <linux/proc_fs.h>
#include <linux/cpumask.h>
#include <linux/netfilter_ipv6/ip6_tables.h>
......@@ -950,8 +951,10 @@ translate_table(const char *name,
}
/* And one copy for every other CPU */
for (i = 1; i < num_possible_cpus(); i++) {
memcpy(newinfo->entries + SMP_ALIGN(newinfo->size)*i,
for_each_cpu(i) {
if (i == 0)
continue;
memcpy(newinfo->entries + SMP_ALIGN(newinfo->size) * i,
newinfo->entries,
SMP_ALIGN(newinfo->size));
}
......@@ -972,7 +975,7 @@ replace_table(struct ip6t_table *table,
struct ip6t_entry *table_base;
unsigned int i;
for (i = 0; i < num_possible_cpus(); i++) {
for_each_cpu(i) {
table_base =
(void *)newinfo->entries
+ TABLE_OFFSET(newinfo, i);
......@@ -1019,7 +1022,7 @@ get_counters(const struct ip6t_table_info *t,
unsigned int cpu;
unsigned int i;
for (cpu = 0; cpu < num_possible_cpus(); cpu++) {
for_each_cpu(cpu) {
i = 0;
IP6T_ENTRY_ITERATE(t->entries + TABLE_OFFSET(t, cpu),
t->size,
......@@ -1153,7 +1156,8 @@ do_replace(void __user *user, unsigned int len)
return -ENOMEM;
newinfo = vmalloc(sizeof(struct ip6t_table_info)
+ SMP_ALIGN(tmp.size) * num_possible_cpus());
+ SMP_ALIGN(tmp.size) *
(highest_possible_processor_id()+1));
if (!newinfo)
return -ENOMEM;
......@@ -1467,7 +1471,8 @@ int ip6t_register_table(struct ip6t_table *table,
= { 0, 0, 0, { 0 }, { 0 }, { } };
newinfo = vmalloc(sizeof(struct ip6t_table_info)
+ SMP_ALIGN(repl->size) * num_possible_cpus());
+ SMP_ALIGN(repl->size) *
(highest_possible_processor_id()+1));
if (!newinfo)
return -ENOMEM;
......
net/netfilter/nfnetlink.c
浏览文件 @ 7946ada3
......@@ -133,7 +133,7 @@ int nfattr_parse(struct nfattr *tb[], int maxattr, struct nfattr *nfa, int len)
memset(tb, 0, sizeof(struct nfattr *) * maxattr);
while (NFA_OK(nfa, len)) {
unsigned flavor = nfa->nfa_type;
unsigned flavor = NFA_TYPE(nfa);
if (flavor && flavor <= maxattr)
tb[flavor-1] = nfa;
nfa = NFA_NEXT(nfa, len);
......@@ -177,7 +177,7 @@ nfnetlink_check_attributes(struct nfnetlink_subsystem *subsys,
int attrlen = nlh->nlmsg_len - NLMSG_ALIGN(min_len);
while (NFA_OK(attr, attrlen)) {
unsigned flavor = attr->nfa_type;
unsigned flavor = NFA_TYPE(attr);
if (flavor) {
if (flavor > attr_count)
return -EINVAL;
......
net/sched/Kconfig
浏览文件 @ 7946ada3
......@@ -72,9 +72,11 @@ config NET_SCH_CLK_GETTIMEOFDAY
Choose this if you need a high resolution clock source but can't use
the CPU's cycle counter.
# don't allow on SMP x86 because they can have unsynchronized TSCs.
# gettimeofday is a good alternative
config NET_SCH_CLK_CPU
bool "CPU cycle counter"
depends on X86_TSC || X86_64 || ALPHA || SPARC64 || PPC64 || IA64
depends on ((X86_TSC || X86_64) && !SMP) || ALPHA || SPARC64 || PPC64 || IA64
help
Say Y here if you want to use the CPU's cycle counter as clock source.
This is a cheap and high resolution clock source, but on some
......
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