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提交 d8ea757b 编写于 作者: L Linus Torvalds
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Merge tag 'xtensa-20161005' of git://github.com/jcmvbkbc/linux-xtensa 

Pull Xtensa updates from Max Filippov:
 "Updates for the xtensa architecture.  It is a combined set of patches
  for 4.8 that never got to the mainline and new patches for 4.9.

   - add new kernel memory layouts for MMUv3 cores: with 256MB and 512MB
     KSEG size, starting at physical address other than 0

   - make kernel load address configurable

   - clean up kernel memory layout macros

   - drop sysmem early allocator and switch to memblock

   - enable kmemleak and memory reservation from the device tree

   - wire up new syscalls: userfaultfd, membarrier, mlock2,
     copy_file_range, preadv2 and pwritev2

   - add new platform: Cadence Configurable System Platform (CSP) and
     new core variant for it: xt_lnx

   - rearrange CCOUNT calibration code, make most of it generic

   - improve machine reset code (XTFPGA now reboots reliably with MMUv3
     cores)

   - provide default memmap command line option for configurations
     without device tree support

   - ISS fixes: simdisk is now capable of using highmem pages, panic
     correctly terminates simulator"

* tag 'xtensa-20161005' of git://github.com/jcmvbkbc/linux-xtensa: (24 commits)
  xtensa: disable MMU initialization option on MMUv2 cores
  xtensa: add default memmap and mmio32native options to defconfigs
  xtensa: add default memmap option to common_defconfig
  xtensa: add default memmap option to iss_defconfig
  xtensa: ISS: allow simdisk to use high memory buffers
  xtensa: ISS: define simc_exit and use it instead of inline asm
  xtensa: xtfpga: group platform_* functions together
  xtensa: rearrange CCOUNT calibration
  xtensa: xtfpga: use clock provider, don't update DT
  xtensa: Tweak xuartps UART driver Rx watermark for Cadence CSP config.
  xtensa: initialize MMU before jumping to reset vector
  xtensa: fix icountlevel setting in cpu_reset
  xtensa: extract common CPU reset code into separate function
  xtensa: Added Cadence CSP kernel configuration for Xtensa
  xtensa: fix default kernel load address
  xtensa: wire up new syscalls
  xtensa: support reserved-memory DT node
  xtensa: drop sysmem and switch to memblock
  xtensa: minimize use of PLATFORM_DEFAULT_MEM_{ADDR,SIZE}
  xtensa: cleanup MMU setup and kernel layout macros
  ...
上级 41844e36 a4c6be5a
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Documentation/xtensa/mmu.txt
浏览文件 @ d8ea757b
......@@ -3,15 +3,8 @@ MMUv3 initialization sequence.
The code in the initialize_mmu macro sets up MMUv3 memory mapping
identically to MMUv2 fixed memory mapping. Depending on
CONFIG_INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX symbol this code is
located in one of the following address ranges:
0xF0000000..0xFFFFFFFF (will keep same address in MMU v2 layout;
typically ROM)
0x00000000..0x07FFFFFF (system RAM; this code is actually linked
at 0xD0000000..0xD7FFFFFF [cached]
or 0xD8000000..0xDFFFFFFF [uncached];
in any case, initially runs elsewhere
than linked, so have to be careful)
located in addresses it was linked for (symbol undefined), or not
(symbol defined), so it needs to be position-independent.
The code has the following assumptions:
This code fragment is run only on an MMU v3.
......@@ -28,24 +21,26 @@ TLB setup proceeds along the following steps.
PA = physical address (two upper nibbles of it);
pc = physical range that contains this code;
After step 2, we jump to virtual address in 0x40000000..0x5fffffff
that corresponds to next instruction to execute in this code.
After step 4, we jump to intended (linked) address of this code.
Step 0 Step1 Step 2 Step3 Step 4 Step5
============ ===== ============ ===== ============ =====
VA PA PA VA PA PA VA PA PA
------ -- -- ------ -- -- ------ -- --
E0..FF -> E0 -> E0 E0..FF -> E0 F0..FF -> F0 -> F0
C0..DF -> C0 -> C0 C0..DF -> C0 E0..EF -> F0 -> F0
A0..BF -> A0 -> A0 A0..BF -> A0 D8..DF -> 00 -> 00
80..9F -> 80 -> 80 80..9F -> 80 D0..D7 -> 00 -> 00
60..7F -> 60 -> 60 60..7F -> 60
40..5F -> 40 40..5F -> pc -> pc 40..5F -> pc
20..3F -> 20 -> 20 20..3F -> 20
00..1F -> 00 -> 00 00..1F -> 00
The default location of IO peripherals is above 0xf0000000. This may change
After step 2, we jump to virtual address in the range 0x40000000..0x5fffffff
or 0x00000000..0x1fffffff, depending on whether the kernel was loaded below
0x40000000 or above. That address corresponds to next instruction to execute
in this code. After step 4, we jump to intended (linked) address of this code.
The scheme below assumes that the kernel is loaded below 0x40000000.
Step0 Step1 Step2 Step3 Step4 Step5
===== ===== ===== ===== ===== =====
VA PA PA PA PA VA PA PA
------ -- -- -- -- ------ -- --
E0..FF -> E0 -> E0 -> E0 F0..FF -> F0 -> F0
C0..DF -> C0 -> C0 -> C0 E0..EF -> F0 -> F0
A0..BF -> A0 -> A0 -> A0 D8..DF -> 00 -> 00
80..9F -> 80 -> 80 -> 80 D0..D7 -> 00 -> 00
60..7F -> 60 -> 60 -> 60
40..5F -> 40 -> pc -> pc 40..5F -> pc
20..3F -> 20 -> 20 -> 20
00..1F -> 00 -> 00 -> 00
The default location of IO peripherals is above 0xf0000000. This may be changed
using a "ranges" property in a device tree simple-bus node. See ePAPR 1.1, §6.5
for details on the syntax and semantic of simple-bus nodes. The following
limitations apply:
......@@ -62,3 +57,127 @@ limitations apply:
6. The IO area covers the entire 256MB segment of parent-bus-address; the
"ranges" triplet length field is ignored
MMUv3 address space layouts.
============================
Default MMUv2-compatible layout.
Symbol VADDR Size
+------------------+
| Userspace | 0x00000000 TASK_SIZE
+------------------+ 0x40000000
+------------------+
| Page table | 0x80000000
+------------------+ 0x80400000
+------------------+
| KMAP area | PKMAP_BASE PTRS_PER_PTE *
| | DCACHE_N_COLORS *
| | PAGE_SIZE
| | (4MB * DCACHE_N_COLORS)
+------------------+
| Atomic KMAP area | FIXADDR_START KM_TYPE_NR *
| | NR_CPUS *
| | DCACHE_N_COLORS *
| | PAGE_SIZE
+------------------+ FIXADDR_TOP 0xbffff000
+------------------+
| VMALLOC area | VMALLOC_START 0xc0000000 128MB - 64KB
+------------------+ VMALLOC_END
| Cache aliasing | TLBTEMP_BASE_1 0xc7ff0000 DCACHE_WAY_SIZE
| remap area 1 |
+------------------+
| Cache aliasing | TLBTEMP_BASE_2 DCACHE_WAY_SIZE
| remap area 2 |
+------------------+
+------------------+
| Cached KSEG | XCHAL_KSEG_CACHED_VADDR 0xd0000000 128MB
+------------------+
| Uncached KSEG | XCHAL_KSEG_BYPASS_VADDR 0xd8000000 128MB
+------------------+
| Cached KIO | XCHAL_KIO_CACHED_VADDR 0xe0000000 256MB
+------------------+
| Uncached KIO | XCHAL_KIO_BYPASS_VADDR 0xf0000000 256MB
+------------------+
256MB cached + 256MB uncached layout.
Symbol VADDR Size
+------------------+
| Userspace | 0x00000000 TASK_SIZE
+------------------+ 0x40000000
+------------------+
| Page table | 0x80000000
+------------------+ 0x80400000
+------------------+
| KMAP area | PKMAP_BASE PTRS_PER_PTE *
| | DCACHE_N_COLORS *
| | PAGE_SIZE
| | (4MB * DCACHE_N_COLORS)
+------------------+
| Atomic KMAP area | FIXADDR_START KM_TYPE_NR *
| | NR_CPUS *
| | DCACHE_N_COLORS *
| | PAGE_SIZE
+------------------+ FIXADDR_TOP 0x9ffff000
+------------------+
| VMALLOC area | VMALLOC_START 0xa0000000 128MB - 64KB
+------------------+ VMALLOC_END
| Cache aliasing | TLBTEMP_BASE_1 0xa7ff0000 DCACHE_WAY_SIZE
| remap area 1 |
+------------------+
| Cache aliasing | TLBTEMP_BASE_2 DCACHE_WAY_SIZE
| remap area 2 |
+------------------+
+------------------+
| Cached KSEG | XCHAL_KSEG_CACHED_VADDR 0xb0000000 256MB
+------------------+
| Uncached KSEG | XCHAL_KSEG_BYPASS_VADDR 0xc0000000 256MB
+------------------+
+------------------+
| Cached KIO | XCHAL_KIO_CACHED_VADDR 0xe0000000 256MB
+------------------+
| Uncached KIO | XCHAL_KIO_BYPASS_VADDR 0xf0000000 256MB
+------------------+
512MB cached + 512MB uncached layout.
Symbol VADDR Size
+------------------+
| Userspace | 0x00000000 TASK_SIZE
+------------------+ 0x40000000
+------------------+
| Page table | 0x80000000
+------------------+ 0x80400000
+------------------+
| KMAP area | PKMAP_BASE PTRS_PER_PTE *
| | DCACHE_N_COLORS *
| | PAGE_SIZE
| | (4MB * DCACHE_N_COLORS)
+------------------+
| Atomic KMAP area | FIXADDR_START KM_TYPE_NR *
| | NR_CPUS *
| | DCACHE_N_COLORS *
| | PAGE_SIZE
+------------------+ FIXADDR_TOP 0x8ffff000
+------------------+
| VMALLOC area | VMALLOC_START 0x90000000 128MB - 64KB
+------------------+ VMALLOC_END
| Cache aliasing | TLBTEMP_BASE_1 0x97ff0000 DCACHE_WAY_SIZE
| remap area 1 |
+------------------+
| Cache aliasing | TLBTEMP_BASE_2 DCACHE_WAY_SIZE
| remap area 2 |
+------------------+
+------------------+
| Cached KSEG | XCHAL_KSEG_CACHED_VADDR 0xa0000000 512MB
+------------------+
| Uncached KSEG | XCHAL_KSEG_BYPASS_VADDR 0xc0000000 512MB
+------------------+
| Cached KIO | XCHAL_KIO_CACHED_VADDR 0xe0000000 256MB
+------------------+
| Uncached KIO | XCHAL_KIO_BYPASS_VADDR 0xf0000000 256MB
+------------------+
arch/xtensa/Kconfig
浏览文件 @ d8ea757b
......@@ -13,16 +13,19 @@ config XTENSA
select GENERIC_IRQ_SHOW
select GENERIC_PCI_IOMAP
select GENERIC_SCHED_CLOCK
select HAVE_DEBUG_KMEMLEAK
select HAVE_DMA_API_DEBUG
select HAVE_EXIT_THREAD
select HAVE_FUNCTION_TRACER
select HAVE_FUTEX_CMPXCHG if !MMU
select HAVE_HW_BREAKPOINT if PERF_EVENTS
select HAVE_IRQ_TIME_ACCOUNTING
select HAVE_MEMBLOCK
select HAVE_OPROFILE
select HAVE_PERF_EVENTS
select IRQ_DOMAIN
select MODULES_USE_ELF_RELA
select NO_BOOTMEM
select PERF_USE_VMALLOC
select VIRT_TO_BUS
help
......@@ -209,7 +212,8 @@ config HOTPLUG_CPU
config INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX
bool "Initialize Xtensa MMU inside the Linux kernel code"
default y
depends on !XTENSA_VARIANT_FSF && !XTENSA_VARIANT_DC232B
default y if XTENSA_VARIANT_DC233C || XTENSA_VARIANT_CUSTOM
help
Earlier version initialized the MMU in the exception vector
before jumping to _startup in head.S and had an advantage that
......@@ -236,6 +240,71 @@ config INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX
If in doubt, say Y.
config KSEG_PADDR
hex "Physical address of the KSEG mapping"
depends on INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX && MMU
default 0x00000000
help
This is the physical address where KSEG is mapped. Please refer to
the chosen KSEG layout help for the required address alignment.
Unpacked kernel image (including vectors) must be located completely
within KSEG.
Physical memory below this address is not available to linux.
If unsure, leave the default value here.
config KERNEL_LOAD_ADDRESS
hex "Kernel load address"
default 0x60003000 if !MMU
default 0x00003000 if MMU && INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX
default 0xd0003000 if MMU && !INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX
help
This is the address where the kernel is loaded.
It is virtual address for MMUv2 configurations and physical address
for all other configurations.
If unsure, leave the default value here.
config VECTORS_OFFSET
hex "Kernel vectors offset"
default 0x00003000
help
This is the offset of the kernel image from the relocatable vectors
base.
If unsure, leave the default value here.
choice
prompt "KSEG layout"
depends on MMU
default XTENSA_KSEG_MMU_V2
config XTENSA_KSEG_MMU_V2
bool "MMUv2: 128MB cached + 128MB uncached"
help
MMUv2 compatible kernel memory map: TLB way 5 maps 128MB starting
at KSEG_PADDR to 0xd0000000 with cache and to 0xd8000000
without cache.
KSEG_PADDR must be aligned to 128MB.
config XTENSA_KSEG_256M
bool "256MB cached + 256MB uncached"
depends on INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX
help
TLB way 6 maps 256MB starting at KSEG_PADDR to 0xb0000000
with cache and to 0xc0000000 without cache.
KSEG_PADDR must be aligned to 256MB.
config XTENSA_KSEG_512M
bool "512MB cached + 512MB uncached"
depends on INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX
help
TLB way 6 maps 512MB starting at KSEG_PADDR to 0xa0000000
with cache and to 0xc0000000 without cache.
KSEG_PADDR must be aligned to 256MB.
endchoice
config HIGHMEM
bool "High Memory Support"
depends on MMU
......@@ -331,7 +400,7 @@ config XTENSA_PLATFORM_XT2000
config XTENSA_PLATFORM_XTFPGA
bool "XTFPGA"
select ETHOC if ETHERNET
select PLATFORM_WANT_DEFAULT_MEM
select PLATFORM_WANT_DEFAULT_MEM if !MMU
select SERIAL_CONSOLE
select XTENSA_CALIBRATE_CCOUNT
help
......@@ -369,6 +438,7 @@ config USE_OF
bool "Flattened Device Tree support"
select OF
select OF_EARLY_FLATTREE
select OF_RESERVED_MEM
help
Include support for flattened device tree machine descriptions.
......@@ -439,16 +509,9 @@ config DEFAULT_MEM_START
default 0x00000000 if MMU
default 0x60000000 if !MMU
help
This is a fallback start address of the default memory area, it is
used when no physical memory size is passed through DTB or through
boot parameter from bootloader.
In noMMU configuration the following parameters are derived from it:
- kernel load address;
- kernel entry point address;
- relocatable vectors base address;
- uBoot load address;
- TASK_SIZE.
This is the base address of the default memory area.
Default memory area has platform-specific meaning, it may be used
for e.g. early cache initialization.
If unsure, leave the default value here.
......@@ -457,11 +520,9 @@ config DEFAULT_MEM_SIZE
depends on PLATFORM_WANT_DEFAULT_MEM
default 0x04000000
help
This is a fallback size of the default memory area, it is used when
no physical memory size is passed through DTB or through boot
parameter from bootloader.
It's also used for TASK_SIZE calculation in noMMU configuration.
This is the size of the default memory area.
Default memory area has platform-specific meaning, it may be used
for e.g. early cache initialization.
If unsure, leave the default value here.
......
arch/xtensa/boot/boot-elf/boot.lds.S
浏览文件 @ d8ea757b
......@@ -23,7 +23,7 @@ SECTIONS
*(.ResetVector.text)
}
.image KERNELOFFSET: AT (LOAD_MEMORY_ADDRESS)
.image KERNELOFFSET: AT (CONFIG_KERNEL_LOAD_ADDRESS)
{
_image_start = .;
*(image)
......
arch/xtensa/boot/boot-elf/bootstrap.S
浏览文件 @ d8ea757b
......@@ -35,7 +35,12 @@ _ResetVector:
.align 4
RomInitAddr:
.word LOAD_MEMORY_ADDRESS
#if defined(CONFIG_INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX) && \
XCHAL_HAVE_PTP_MMU && XCHAL_HAVE_SPANNING_WAY
.word CONFIG_KERNEL_LOAD_ADDRESS
#else
.word KERNELOFFSET
#endif
RomBootParam:
.word _bootparam
_bootparam:
......
arch/xtensa/boot/boot-uboot/Makefile
浏览文件 @ d8ea757b
......@@ -4,15 +4,7 @@
# for more details.
#
ifdef CONFIG_MMU
ifdef CONFIG_INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX
UIMAGE_LOADADDR = 0x00003000
else
UIMAGE_LOADADDR = 0xd0003000
endif
else
UIMAGE_LOADADDR = $(shell printf "0x%x" $$(( ${CONFIG_DEFAULT_MEM_START} + 0x3000 )) )
endif
UIMAGE_LOADADDR = $(CONFIG_KERNEL_LOAD_ADDRESS)
UIMAGE_COMPRESSION = gzip
$(obj)/../uImage: vmlinux.bin.gz FORCE
......
arch/xtensa/boot/dts/csp.dts 0 → 100644
浏览文件 @ d8ea757b
/dts-v1/;
/ {
compatible = "cdns,xtensa-xtfpga";
#address-cells = <1>;
#size-cells = <1>;
interrupt-parent = <&pic>;
chosen {
bootargs = "earlycon=cdns,0xfd000000,115200 console=tty0 console=ttyPS0,115200 root=/dev/ram0 rw earlyprintk xilinx_uartps.rx_trigger_level=32 loglevel=8 nohz=off ignore_loglevel";
};
memory@0 {
device_type = "memory";
reg = <0x00000000 0x40000000>;
};
cpus {
#address-cells = <1>;
#size-cells = <0>;
cpu@0 {
compatible = "cdns,xtensa-cpu";
reg = <0>;
};
};
pic: pic {
compatible = "cdns,xtensa-pic";
#interrupt-cells = <2>;
interrupt-controller;
};
clocks {
osc: main-oscillator {
#clock-cells = <0>;
compatible = "fixed-clock";
};
};
soc {
#address-cells = <1>;
#size-cells = <1>;
compatible = "simple-bus";
ranges = <0x00000000 0xf0000000 0x10000000>;
uart0: serial@0d000000 {
compatible = "xlnx,xuartps", "cdns,uart-r1p8";
clocks = <&osc>, <&osc>;
clock-names = "uart_clk", "pclk";
reg = <0x0d000000 0x1000>;
interrupts = <0 1>;
};
};
};
arch/xtensa/boot/dts/xtfpga.dtsi
浏览文件 @ d8ea757b
......@@ -19,9 +19,7 @@
cpu@0 {
compatible = "cdns,xtensa-cpu";
reg = <0>;
/* Filled in by platform_setup from FPGA register
* clock-frequency = <100000000>;
*/
clocks = <&osc>;
};
};
......@@ -36,11 +34,6 @@
};
clocks {
osc: main-oscillator {
#clock-cells = <0>;
compatible = "fixed-clock";
};
clk54: clk54 {
#clock-cells = <0>;
compatible = "fixed-clock";
......@@ -54,6 +47,12 @@
compatible = "simple-bus";
ranges = <0x00000000 0xf0000000 0x10000000>;
osc: main-oscillator {
#clock-cells = <0>;
compatible = "cdns,xtfpga-clock";
reg = <0x0d020004 0x4>;
};
serial0: serial@0d050020 {
device_type = "serial";
compatible = "ns16550a";
......
arch/xtensa/configs/audio_kc705_defconfig
浏览文件 @ d8ea757b
......@@ -33,7 +33,7 @@ CONFIG_HIGHMEM=y
# CONFIG_PCI is not set
CONFIG_XTENSA_PLATFORM_XTFPGA=y
CONFIG_CMDLINE_BOOL=y
CONFIG_CMDLINE="earlycon=uart8250,mmio32,0xfd050020,115200n8 console=ttyS0,115200n8 ip=dhcp root=/dev/nfs rw debug"
CONFIG_CMDLINE="earlycon=uart8250,mmio32native,0xfd050020,115200n8 console=ttyS0,115200n8 ip=dhcp root=/dev/nfs rw debug memmap=0x38000000@0"
CONFIG_USE_OF=y
CONFIG_BUILTIN_DTB="kc705"
# CONFIG_COMPACTION is not set
......
arch/xtensa/configs/cadence_csp_defconfig 0 → 100644
浏览文件 @ d8ea757b
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_USELIB=y
CONFIG_IRQ_DOMAIN_DEBUG=y
CONFIG_NO_HZ_IDLE=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_IRQ_TIME_ACCOUNTING=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_CGROUP_FREEZER=y
CONFIG_CPUSETS=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_CGROUP_DEBUG=y
CONFIG_NAMESPACES=y
CONFIG_SCHED_AUTOGROUP=y
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE="$$KERNEL_INITRAMFS_SOURCE"
# CONFIG_RD_BZIP2 is not set
# CONFIG_RD_LZMA is not set
# CONFIG_RD_XZ is not set
# CONFIG_RD_LZO is not set
# CONFIG_RD_LZ4 is not set
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_EMBEDDED=y
CONFIG_PROFILING=y
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
CONFIG_XTENSA_VARIANT_CUSTOM=y
CONFIG_XTENSA_VARIANT_CUSTOM_NAME="csp"
CONFIG_XTENSA_UNALIGNED_USER=y
CONFIG_PREEMPT=y
CONFIG_HIGHMEM=y
# CONFIG_PCI is not set
CONFIG_XTENSA_PLATFORM_XTFPGA=y
CONFIG_USE_OF=y
CONFIG_BUILTIN_DTB="csp"
# CONFIG_COMPACTION is not set
CONFIG_XTFPGA_LCD=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_IP_PNP_RARP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
# CONFIG_WIRELESS is not set
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_STANDALONE is not set
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
CONFIG_MTD_CFI=y
CONFIG_MTD_JEDECPROBE=y
CONFIG_MTD_CFI_INTELEXT=y
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_CFI_STAA=y
CONFIG_MTD_PHYSMAP_OF=y
CONFIG_MTD_UBI=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
CONFIG_LEGACY_PTY_COUNT=16
CONFIG_SERIAL_XILINX_PS_UART=y
CONFIG_SERIAL_XILINX_PS_UART_CONSOLE=y
CONFIG_HW_RANDOM=y
# CONFIG_HWMON is not set
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_NOWAYOUT=y
CONFIG_SOFT_WATCHDOG=y
# CONFIG_VGA_CONSOLE is not set
# CONFIG_USB_SUPPORT is not set
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_EXT3_FS=y
CONFIG_FANOTIFY=y
CONFIG_VFAT_FS=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
# CONFIG_MISC_FILESYSTEMS is not set
CONFIG_NFS_FS=y
CONFIG_NFS_V4=y
CONFIG_NFS_SWAP=y
CONFIG_ROOT_NFS=y
CONFIG_SUNRPC_DEBUG=y
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ISO8859_1=y
CONFIG_PRINTK_TIME=y
CONFIG_DYNAMIC_DEBUG=y
CONFIG_DEBUG_INFO=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_LOCKUP_DETECTOR=y
# CONFIG_SCHED_DEBUG is not set
CONFIG_SCHEDSTATS=y
CONFIG_TIMER_STATS=y
CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_PROVE_LOCKING=y
CONFIG_DEBUG_ATOMIC_SLEEP=y
CONFIG_RCU_TRACE=y
CONFIG_FUNCTION_TRACER=y
# CONFIG_S32C1I_SELFTEST is not set
# CONFIG_CRYPTO_ECHAINIV is not set
CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRYPTO_LZO=y
# CONFIG_CRYPTO_HW is not set
arch/xtensa/configs/common_defconfig
浏览文件 @ d8ea757b
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.11-rc2
# Tue Mar 1 16:36:53 2005
#
# CONFIG_FRAME_POINTER is not set
CONFIG_XTENSA=y
# CONFIG_UID16 is not set
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_HAVE_DEC_LOCK=y
#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y
CONFIG_CLEAN_COMPILE=y
CONFIG_BROKEN_ON_SMP=y
#
# General setup
#
CONFIG_LOCALVERSION=""
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
# CONFIG_POSIX_MQUEUE is not set
CONFIG_BSD_PROCESS_ACCT=y
# CONFIG_BSD_PROCESS_ACCT_V3 is not set
CONFIG_SYSCTL=y
# CONFIG_AUDIT is not set
CONFIG_LOG_BUF_SHIFT=14
# CONFIG_HOTPLUG is not set
CONFIG_KOBJECT_UEVENT=y
# CONFIG_IKCONFIG is not set
# CONFIG_EXPERT is not set
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_FUTEX=y
CONFIG_EPOLL=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SHMEM=y
CONFIG_CC_ALIGN_FUNCTIONS=0
CONFIG_CC_ALIGN_LABELS=0
CONFIG_CC_ALIGN_LOOPS=0
CONFIG_CC_ALIGN_JUMPS=0
# CONFIG_TINY_SHMEM is not set
#
# Loadable module support
#
CONFIG_MODULES=y
# CONFIG_MODULE_UNLOAD is not set
CONFIG_OBSOLETE_MODPARM=y
CONFIG_MODVERSIONS=y
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_KMOD=y
#
# Processor type and features
#
CONFIG_XTENSA_ARCH_LINUX_BE=y
# CONFIG_XTENSA_ARCH_LINUX_LE is not set
# CONFIG_XTENSA_ARCH_LINUX_TEST is not set
# CONFIG_XTENSA_ARCH_S5 is not set
# CONFIG_XTENSA_CUSTOM is not set
CONFIG_MMU=y
# CONFIG_XTENSA_UNALIGNED_USER is not set
# CONFIG_PREEMPT is not set
# CONFIG_HIGHMEM is not set
#
# Platform options
#
# CONFIG_XTENSA_PLATFORM_ISS is not set
CONFIG_XTENSA_PLATFORM_XT2000=y
CONFIG_XTENSA_CALIBRATE_CCOUNT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_CMDLINE_BOOL=y
CONFIG_CMDLINE="console=ttyS0,38400 ip=bootp root=nfs nfsroot=/opt/montavista/pro/devkit/xtensa/linux_be/target"
#
# Bus options
#
CONFIG_PCI=y
# CONFIG_PCI_LEGACY_PROC is not set
# CONFIG_PCI_NAMES is not set
#
# PCCARD (PCMCIA/CardBus) support
#
# CONFIG_PCCARD is not set
#
# PC-card bridges
#
#
# PCI Hotplug Support
#
# CONFIG_HOTPLUG_PCI is not set
#
# Exectuable file formats
#
CONFIG_KCORE_ELF=y
CONFIG_BINFMT_ELF=y
CONFIG_CMDLINE="console=ttyS0,38400 ip=bootp root=nfs nfsroot=/opt/montavista/pro/devkit/xtensa/linux_be/target memmap=128M@0"
CONFIG_BINFMT_MISC=y
#
# Device Drivers
#
#
# Generic Driver Options
#
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
# CONFIG_FW_LOADER is not set
# CONFIG_DEBUG_DRIVER is not set
#
# Memory Technology Devices (MTD)
#
# CONFIG_MTD is not set
#
# Parallel port support
#
# CONFIG_PARPORT is not set
#
# Plug and Play support
#
#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_RAM is not set
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_INITRAMFS_SOURCE=""
# CONFIG_CDROM_PKTCDVD is not set
#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_ATA_OVER_ETH is not set
#
# ATA/ATAPI/MFM/RLL support
#
# CONFIG_IDE is not set
#
# SCSI device support
#
# CONFIG_SCSI is not set
#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set
#
# Fusion MPT device support
#
#
# IEEE 1394 (FireWire) support
#
# CONFIG_IEEE1394 is not set
#
# I2O device support
#
# CONFIG_I2O is not set
#
# Networking support
#
CONFIG_NET=y
#
# Networking options
#
# CONFIG_PACKET is not set
# CONFIG_NETLINK_DEV is not set
CONFIG_UNIX=y
# CONFIG_NET_KEY is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
......@@ -209,47 +20,10 @@ CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_IP_PNP_RARP=y
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_TUNNEL is not set
# CONFIG_IP_TCPDIAG is not set
# CONFIG_IP_TCPDIAG_IPV6 is not set
# CONFIG_IPV6 is not set
# CONFIG_NETFILTER is not set
#
# SCTP Configuration (EXPERIMENTAL)
#
# CONFIG_IP_SCTP is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
#
# QoS and/or fair queueing
#
CONFIG_NET_SCHED=y
CONFIG_NET_SCH_CLK_JIFFIES=y
# CONFIG_NET_SCH_CLK_GETTIMEOFDAY is not set
# CONFIG_NET_SCH_CLK_CPU is not set
CONFIG_NET_SCH_CBQ=m
CONFIG_NET_SCH_HTB=m
# CONFIG_NET_SCH_HFSC is not set
CONFIG_NET_SCH_PRIO=m
CONFIG_NET_SCH_RED=m
CONFIG_NET_SCH_SFQ=m
......@@ -257,399 +31,24 @@ CONFIG_NET_SCH_TEQL=m
CONFIG_NET_SCH_TBF=m
CONFIG_NET_SCH_GRED=m
CONFIG_NET_SCH_DSMARK=m
# CONFIG_NET_SCH_NETEM is not set
CONFIG_NET_SCH_INGRESS=m
CONFIG_NET_QOS=y
CONFIG_NET_ESTIMATOR=y
CONFIG_NET_CLS=y
CONFIG_NET_CLS_TCINDEX=m
CONFIG_NET_CLS_ROUTE4=m
CONFIG_NET_CLS_ROUTE=y
CONFIG_NET_CLS_FW=m
CONFIG_NET_CLS_U32=m
# CONFIG_CLS_U32_PERF is not set
# CONFIG_NET_CLS_IND is not set
CONFIG_NET_CLS_RSVP=m
CONFIG_NET_CLS_RSVP6=m
# CONFIG_NET_CLS_ACT is not set
CONFIG_NET_CLS_POLICE=y
#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_HAMRADIO is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
CONFIG_NETDEVICES=y
CONFIG_DUMMY=y
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
#
# ARCnet devices
#
# CONFIG_ARCNET is not set
#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
# CONFIG_MII is not set
CONFIG_XT2000_SONIC=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_NET_VENDOR_3COM is not set
#
# Tulip family network device support
#
# CONFIG_NET_TULIP is not set
# CONFIG_HP100 is not set
# CONFIG_NET_PCI is not set
#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
# CONFIG_E1000 is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_R8169 is not set
# CONFIG_SK98LIN is not set
# CONFIG_TIGON3 is not set
#
# Ethernet (10000 Mbit)
#
# CONFIG_IXGB is not set
# CONFIG_S2IO is not set
#
# Wireless LAN (non-hamradio)
#
CONFIG_NET_RADIO=y
#
# Obsolete Wireless cards support (pre-802.11)
#
CONFIG_STRIP=m
#
# Wireless 802.11b ISA/PCI cards support
#
CONFIG_HERMES=m
# CONFIG_PLX_HERMES is not set
# CONFIG_TMD_HERMES is not set
# CONFIG_PCI_HERMES is not set
# CONFIG_ATMEL is not set
#
# Prism GT/Duette 802.11(a/b/g) PCI/Cardbus support
#
# CONFIG_PRISM54 is not set
CONFIG_NET_WIRELESS=y
#
# Wan interfaces
#
# CONFIG_WAN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
# CONFIG_SHAPER is not set
# CONFIG_NETCONSOLE is not set
#
# ISDN subsystem
#
# CONFIG_ISDN is not set
#
# Telephony Support
#
# CONFIG_PHONE is not set
#
# Input device support
#
CONFIG_INPUT=y
#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_TSDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set
#
# Input I/O drivers
#
# CONFIG_GAMEPORT is not set
CONFIG_SOUND_GAMEPORT=y
CONFIG_SERIO=y
# CONFIG_SERIO_I8042 is not set
# CONFIG_SERIO_SERPORT is not set
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PCIPS2 is not set
# CONFIG_SERIO_RAW is not set
#
# Input Device Drivers
#
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_SERIAL_NONSTANDARD is not set
#
# Serial drivers
#
# CONFIG_SERIO_SERPORT is not set
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_NR_UARTS=4
# CONFIG_SERIAL_8250_EXTENDED is not set
#
# Non-8250 serial port support
#
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
#
# IPMI
#
# CONFIG_IPMI_HANDLER is not set
#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
# CONFIG_RTC is not set
# CONFIG_GEN_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
#
# Ftape, the floppy tape device driver
#
# CONFIG_DRM is not set
# CONFIG_RAW_DRIVER is not set
#
# I2C support
#
# CONFIG_I2C is not set
#
# Dallas's 1-wire bus
#
# CONFIG_W1 is not set
#
# Misc devices
#
#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set
#
# Digital Video Broadcasting Devices
#
# CONFIG_DVB is not set
#
# Graphics support
#
# CONFIG_FB is not set
#
# Console display driver support
#
# CONFIG_VGA_CONSOLE is not set
CONFIG_DUMMY_CONSOLE=y
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
#
# Sound
#
# CONFIG_SOUND is not set
#
# USB support
#
# CONFIG_USB is not set
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
#
# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' may also be needed; see USB_STORAGE Help for more information
#
#
# USB Gadget Support
#
# CONFIG_USB_GADGET is not set
#
# MMC/SD Card support
#
# CONFIG_MMC is not set
#
# InfiniBand support
#
# CONFIG_INFINIBAND is not set
#
# File systems
#
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
# CONFIG_JBD is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_QUOTA is not set
CONFIG_DNOTIFY=y
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set
#
# DOS/FAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_NTFS_FS is not set
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
# CONFIG_PROC_KCORE is not set
CONFIG_SYSFS=y
CONFIG_DEVFS_FS=y
# CONFIG_DEVFS_MOUNT is not set
# CONFIG_DEVFS_DEBUG is not set
# CONFIG_DEVPTS_FS_XATTR is not set
# CONFIG_TMPFS is not set
# CONFIG_HUGETLB_PAGE is not set
CONFIG_RAMFS=y
#
# Miscellaneous filesystems
#
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
#
# Network File Systems
#
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
# CONFIG_NFS_V4 is not set
# CONFIG_NFS_DIRECTIO is not set
# CONFIG_NFSD is not set
CONFIG_ROOT_NFS=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
# CONFIG_EXPORTFS is not set
CONFIG_SUNRPC=y
# CONFIG_RPCSEC_GSS_KRB5 is not set
# CONFIG_RPCSEC_GSS_SPKM3 is not set
# CONFIG_SMB_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
#
# Native Language Support
#
# CONFIG_NLS is not set
#
# Kernel hacking
#
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_STACKOVERFLOW is not set
# CONFIG_DEBUG_SLAB is not set
# CONFIG_FRAME_POINTER is not set
CONFIG_MAGIC_SYSRQ=y
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
# CONFIG_KGDB is not set
#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY is not set
#
# Cryptographic options
#
# CONFIG_CRYPTO is not set
#
# Hardware crypto devices
#
#
# Library routines
#
# CONFIG_CRC_CCITT is not set
# CONFIG_CRC32 is not set
# CONFIG_LIBCRC32C is not set
CONFIG_DEBUG_KERNEL=y
arch/xtensa/configs/generic_kc705_defconfig
浏览文件 @ d8ea757b
......@@ -32,7 +32,7 @@ CONFIG_HIGHMEM=y
# CONFIG_PCI is not set
CONFIG_XTENSA_PLATFORM_XTFPGA=y
CONFIG_CMDLINE_BOOL=y
CONFIG_CMDLINE="earlycon=uart8250,mmio32,0xfd050020,115200n8 console=ttyS0,115200n8 ip=dhcp root=/dev/nfs rw debug"
CONFIG_CMDLINE="earlycon=uart8250,mmio32native,0xfd050020,115200n8 console=ttyS0,115200n8 ip=dhcp root=/dev/nfs rw debug memmap=0x38000000@0"
CONFIG_USE_OF=y
CONFIG_BUILTIN_DTB="kc705"
# CONFIG_COMPACTION is not set
......
arch/xtensa/configs/iss_defconfig
浏览文件 @ d8ea757b
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.34-rc6
# Tue Aug 3 00:10:54 2010
#
# CONFIG_FRAME_POINTER is not set
CONFIG_ZONE_DMA=y
CONFIG_XTENSA=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_HWEIGHT=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_NO_IOPORT_MAP=y
CONFIG_HZ=100
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_CONSTRUCTORS=y
#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
# CONFIG_POSIX_MQUEUE is not set
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
# CONFIG_AUDIT is not set
#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
# CONFIG_TREE_PREEMPT_RCU is not set
# CONFIG_TINY_RCU is not set
# CONFIG_RCU_TRACE is not set
CONFIG_RCU_FANOUT=32
# CONFIG_RCU_FANOUT_EXACT is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=14
# CONFIG_CGROUPS is not set
# CONFIG_SYSFS_DEPRECATED_V2 is not set
# CONFIG_RELAY is not set
# CONFIG_NAMESPACES is not set
# CONFIG_BLK_DEV_INITRD is not set
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_EXPERT=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
# CONFIG_KALLSYMS_EXTRA_PASS is not set
# CONFIG_HOTPLUG is not set
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
#
# Kernel Performance Events And Counters
#
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLUB_DEBUG=y
CONFIG_COMPAT_BRK=y
# CONFIG_SLAB is not set
CONFIG_SLUB=y
# CONFIG_SLOB is not set
# CONFIG_PROFILING is not set
#
# GCOV-based kernel profiling
#
# CONFIG_SLOW_WORK is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
# CONFIG_MODULES is not set
CONFIG_BLOCK=y
CONFIG_LBDAF=y
CONFIG_BLK_DEV_BSG=y
# CONFIG_BLK_DEV_INTEGRITY is not set
#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
# CONFIG_DEFAULT_DEADLINE is not set
# CONFIG_DEFAULT_CFQ is not set
CONFIG_DEFAULT_NOOP=y
CONFIG_DEFAULT_IOSCHED="noop"
# CONFIG_INLINE_SPIN_TRYLOCK is not set
# CONFIG_INLINE_SPIN_TRYLOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK is not set
# CONFIG_INLINE_SPIN_LOCK_BH is not set
# CONFIG_INLINE_SPIN_LOCK_IRQ is not set
# CONFIG_INLINE_SPIN_LOCK_IRQSAVE is not set
# CONFIG_UNINLINE_SPIN_UNLOCK is not set
# CONFIG_INLINE_SPIN_UNLOCK_BH is not set
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
# CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_READ_TRYLOCK is not set
# CONFIG_INLINE_READ_LOCK is not set
# CONFIG_INLINE_READ_LOCK_BH is not set
# CONFIG_INLINE_READ_LOCK_IRQ is not set
# CONFIG_INLINE_READ_LOCK_IRQSAVE is not set
CONFIG_INLINE_READ_UNLOCK=y
# CONFIG_INLINE_READ_UNLOCK_BH is not set
CONFIG_INLINE_READ_UNLOCK_IRQ=y
# CONFIG_INLINE_READ_UNLOCK_IRQRESTORE is not set
# CONFIG_INLINE_WRITE_TRYLOCK is not set
# CONFIG_INLINE_WRITE_LOCK is not set
# CONFIG_INLINE_WRITE_LOCK_BH is not set
# CONFIG_INLINE_WRITE_LOCK_IRQ is not set
# CONFIG_INLINE_WRITE_LOCK_IRQSAVE is not set
CONFIG_INLINE_WRITE_UNLOCK=y
# CONFIG_INLINE_WRITE_UNLOCK_BH is not set
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
# CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE is not set
# CONFIG_MUTEX_SPIN_ON_OWNER is not set
# CONFIG_FREEZER is not set
CONFIG_MMU=y
# CONFIG_VARIANT_IRQ_SWITCH is not set
#
# Processor type and features
#
CONFIG_XTENSA_VARIANT_FSF=y
# CONFIG_XTENSA_VARIANT_DC232B is not set
# CONFIG_XTENSA_UNALIGNED_USER is not set
# CONFIG_PREEMPT is not set
CONFIG_XTENSA_CALIBRATE_CCOUNT=y
CONFIG_SERIAL_CONSOLE=y
CONFIG_XTENSA_ISS_NETWORK=y
#
# Bus options
#
# CONFIG_PCI is not set
# CONFIG_ARCH_SUPPORTS_MSI is not set
#
# Platform options
#
CONFIG_XTENSA_PLATFORM_ISS=y
# CONFIG_XTENSA_PLATFORM_XT2000 is not set
# CONFIG_GENERIC_CALIBRATE_DELAY is not set
CONFIG_CMDLINE_BOOL=y
CONFIG_CMDLINE="console=ttyS0,38400 eth0=tuntap,,tap0 ip=192.168.168.5:192.168.168.1 root=nfs nfsroot=192.168.168.1:/opt/montavista/pro/devkit/xtensa/linux_be/target"
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_DISCONTIGMEM_MANUAL is not set
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_PHYS_ADDR_T_64BIT is not set
CONFIG_ZONE_DMA_FLAG=1
CONFIG_BOUNCE=y
CONFIG_VIRT_TO_BUS=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
#
# Executable file formats
#
CONFIG_KCORE_ELF=y
CONFIG_BINFMT_ELF=y
CONFIG_CMDLINE="console=ttyS0,38400 eth0=tuntap,,tap0 ip=192.168.168.5:192.168.168.1 root=nfs nfsroot=192.168.168.1:/opt/montavista/pro/devkit/xtensa/linux_be/target memmap=128M@0"
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
# CONFIG_HAVE_AOUT is not set
# CONFIG_BINFMT_MISC is not set
CONFIG_NET=y
#
# Networking options
#
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_XFRM=y
# CONFIG_XFRM_USER is not set
# CONFIG_XFRM_SUB_POLICY is not set
# CONFIG_XFRM_MIGRATE is not set
# CONFIG_XFRM_STATISTICS is not set
# CONFIG_NET_KEY is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_FIB_HASH=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_IP_PNP_RARP=y
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_ARPD is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
# CONFIG_INET_TUNNEL is not set
CONFIG_INET_XFRM_MODE_TRANSPORT=y
CONFIG_INET_XFRM_MODE_TUNNEL=y
CONFIG_INET_XFRM_MODE_BEET=y
CONFIG_INET_LRO=y
CONFIG_INET_DIAG=y
CONFIG_INET_TCP_DIAG=y
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
# CONFIG_IPV6 is not set
# CONFIG_NETWORK_SECMARK is not set
# CONFIG_NETFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
# CONFIG_NET_DSA is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
CONFIG_WIRELESS=y
# CONFIG_CFG80211 is not set
# CONFIG_LIB80211 is not set
#
# CFG80211 needs to be enabled for MAC80211
#
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
#
# Device Drivers
#
#
# Generic Driver Options
#
# CONFIG_STANDALONE is not set
CONFIG_PREVENT_FIRMWARE_BUILD=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
# CONFIG_PARPORT is not set
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_COW_COMMON is not set
# CONFIG_BLK_DEV_LOOP is not set
#
# DRBD disabled because PROC_FS, INET or CONNECTOR not selected
#
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_BLK_DEV_HD is not set
CONFIG_MISC_DEVICES=y
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_C2PORT is not set
#
# EEPROM support
#
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_HAVE_IDE is not set
# CONFIG_IDE is not set
#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
# CONFIG_SCSI is not set
# CONFIG_SCSI_DMA is not set
# CONFIG_SCSI_NETLINK is not set
# CONFIG_ATA is not set
# CONFIG_MD is not set
# CONFIG_NETDEVICES is not set
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set
#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set
# CONFIG_INPUT_SPARSEKMAP is not set
#
# Userland interfaces
#
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set
#
# Input Device Drivers
#
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
#
# Hardware I/O ports
#
# CONFIG_SERIO is not set
# CONFIG_GAMEPORT is not set
#
# Character devices
#
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_DEVKMEM=y
# CONFIG_SERIAL_NONSTANDARD is not set
#
# Serial drivers
#
# CONFIG_SERIAL_8250 is not set
#
# Non-8250 serial port support
#
# CONFIG_SERIAL_TIMBERDALE is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
# CONFIG_RTC is not set
# CONFIG_GEN_RTC is not set
# CONFIG_R3964 is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_TCG_TPM is not set
# CONFIG_I2C is not set
# CONFIG_SPI is not set
#
# PPS support
#
# CONFIG_PPS is not set
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
CONFIG_HWMON=y
# CONFIG_HWMON_VID is not set
# CONFIG_HWMON_DEBUG_CHIP is not set
#
# Native drivers
#
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_F71882FG is not set
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_PC87427 is not set
# CONFIG_SENSORS_SHT15 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
# CONFIG_THERMAL is not set
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_NOWAYOUT=y
#
# Watchdog Device Drivers
#
CONFIG_SOFT_WATCHDOG=y
CONFIG_SSB_POSSIBLE=y
#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set
#
# Multifunction device drivers
#
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_REGULATOR is not set
# CONFIG_MEDIA_SUPPORT is not set
#
# Graphics support
#
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
# CONFIG_FB is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set
#
# Console display driver support
#
# CONFIG_VGA_CONSOLE is not set
CONFIG_DUMMY_CONSOLE=y
# CONFIG_SOUND is not set
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
# CONFIG_HIDRAW is not set
# CONFIG_HID_PID is not set
#
# Special HID drivers
#
CONFIG_USB_SUPPORT=y
# CONFIG_USB_ARCH_HAS_HCD is not set
# CONFIG_USB_ARCH_HAS_OHCI is not set
# CONFIG_USB_ARCH_HAS_EHCI is not set
# CONFIG_USB_OTG_WHITELIST is not set
# CONFIG_USB_OTG_BLACKLIST_HUB is not set
#
# Enable Host or Gadget support to see Inventra options
#
#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#
# CONFIG_USB_GADGET is not set
#
# OTG and related infrastructure
#
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_RTC_CLASS is not set
# CONFIG_DMADEVICES is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set
#
# TI VLYNQ
#
# CONFIG_STAGING is not set
#
# File systems
#
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
# CONFIG_EXT4_FS is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_FS_POSIX_ACL is not set
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
CONFIG_FILE_LOCKING=y
CONFIG_FSNOTIFY=y
# CONFIG_DNOTIFY is not set
# CONFIG_INOTIFY is not set
CONFIG_INOTIFY_USER=y
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set
#
# Caches
#
# CONFIG_FSCACHE is not set
#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set
#
# DOS/FAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_NTFS_FS is not set
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_HUGETLB_PAGE is not set
# CONFIG_CONFIGFS_FS is not set
CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_LOGFS is not set
# CONFIG_CRAMFS is not set
# CONFIG_SQUASHFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
# CONFIG_NFS_FS is not set
# CONFIG_NFSD is not set
# CONFIG_SMB_FS is not set
# CONFIG_CEPH_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_NLS is not set
# CONFIG_DLM is not set
#
# Kernel hacking
#
# CONFIG_PRINTK_TIME is not set
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=1024
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_UNUSED_SYMBOLS is not set
# CONFIG_DEBUG_FS is not set
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_SHIRQ is not set
CONFIG_DETECT_SOFTLOCKUP=y
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
# CONFIG_FRAME_POINTER is not set
CONFIG_DETECT_HUNG_TASK=y
# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
CONFIG_SCHED_DEBUG=y
# CONFIG_SCHEDSTATS is not set
# CONFIG_TIMER_STATS is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_SLUB_STATS is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_KOBJECT is not set
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_MEMORY_INIT is not set
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set
# CONFIG_RCU_TORTURE_TEST is not set
CONFIG_RCU_CPU_STALL_DETECTOR=y
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_SYSCTL_SYSCALL_CHECK is not set
# CONFIG_PAGE_POISONING is not set
# CONFIG_SAMPLES is not set
#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
# CONFIG_DEFAULT_SECURITY_SELINUX is not set
# CONFIG_DEFAULT_SECURITY_SMACK is not set
# CONFIG_DEFAULT_SECURITY_TOMOYO is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=y
#
# Crypto core or helper
#
# CONFIG_CRYPTO_FIPS is not set
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_RNG2=y
# CONFIG_CRYPTO_MANAGER is not set
# CONFIG_CRYPTO_MANAGER2 is not set
# CONFIG_CRYPTO_GF128MUL is not set
# CONFIG_CRYPTO_NULL is not set
# CONFIG_CRYPTO_CRYPTD is not set
# CONFIG_CRYPTO_AUTHENC is not set
#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_SEQIV is not set
#
# Block modes
#
# CONFIG_CRYPTO_CBC is not set
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
# CONFIG_CRYPTO_ECB is not set
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set
#
# Hash modes
#
# CONFIG_CRYPTO_HMAC is not set
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set
#
# Digest
#
# CONFIG_CRYPTO_CRC32C is not set
# CONFIG_CRYPTO_GHASH is not set
# CONFIG_CRYPTO_MD4 is not set
# CONFIG_CRYPTO_MD5 is not set
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
# CONFIG_CRYPTO_SHA1 is not set
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set
#
# Ciphers
#
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_ANUBIS is not set
# CONFIG_CRYPTO_ARC4 is not set
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_DES is not set
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set
#
# Compression
#
# CONFIG_CRYPTO_DEFLATE is not set
# CONFIG_CRYPTO_ZLIB is not set
# CONFIG_CRYPTO_LZO is not set
#
# Random Number Generation
#
CONFIG_CRYPTO_ANSI_CPRNG=y
CONFIG_CRYPTO_HW=y
# CONFIG_BINARY_PRINTF is not set
#
# Library routines
#
CONFIG_GENERIC_FIND_LAST_BIT=y
# CONFIG_CRC_CCITT is not set
# CONFIG_CRC16 is not set
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC_ITU_T is not set
# CONFIG_CRC32 is not set
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
CONFIG_HAS_IOMEM=y
CONFIG_HAS_DMA=y
CONFIG_NLATTR=y
CONFIG_LD_NO_RELAX=y
arch/xtensa/configs/nommu_kc705_defconfig
浏览文件 @ d8ea757b
......@@ -37,7 +37,7 @@ CONFIG_PREEMPT=y
# CONFIG_PCI is not set
CONFIG_XTENSA_PLATFORM_XTFPGA=y
CONFIG_CMDLINE_BOOL=y
CONFIG_CMDLINE="earlycon=uart8250,mmio32,0x9d050020,115200n8 console=ttyS0,115200n8 ip=dhcp root=/dev/nfs rw debug"
CONFIG_CMDLINE="earlycon=uart8250,mmio32native,0x9d050020,115200n8 console=ttyS0,115200n8 ip=dhcp root=/dev/nfs rw debug memmap=256M@0x60000000"
CONFIG_USE_OF=y
CONFIG_BUILTIN_DTB="kc705_nommu"
CONFIG_DEFAULT_MEM_SIZE=0x10000000
......
arch/xtensa/configs/smp_lx200_defconfig
浏览文件 @ d8ea757b
......@@ -36,7 +36,7 @@ CONFIG_HOTPLUG_CPU=y
# CONFIG_PCI is not set
CONFIG_XTENSA_PLATFORM_XTFPGA=y
CONFIG_CMDLINE_BOOL=y
CONFIG_CMDLINE="earlycon=uart8250,mmio32,0xfd050020,115200n8 console=ttyS0,115200n8 ip=dhcp root=/dev/nfs rw debug"
CONFIG_CMDLINE="earlycon=uart8250,mmio32native,0xfd050020,115200n8 console=ttyS0,115200n8 ip=dhcp root=/dev/nfs rw debug memmap=96M@0"
CONFIG_USE_OF=y
CONFIG_BUILTIN_DTB="lx200mx"
# CONFIG_COMPACTION is not set
......
arch/xtensa/include/asm/bitops.h
浏览文件 @ d8ea757b
......@@ -48,7 +48,7 @@ static inline int ffz(unsigned long x)
* __ffs: Find first bit set in word. Return 0 for bit 0
*/
static inline int __ffs(unsigned long x)
static inline unsigned long __ffs(unsigned long x)
{
return 31 - __cntlz(x & -x);
}
......
arch/xtensa/include/asm/cacheasm.h
浏览文件 @ d8ea757b
......@@ -69,26 +69,23 @@
.endm
#if XCHAL_DCACHE_LINE_LOCKABLE
.macro ___unlock_dcache_all ar at
#if XCHAL_DCACHE_SIZE
#if XCHAL_DCACHE_LINE_LOCKABLE && XCHAL_DCACHE_SIZE
__loop_cache_all \ar \at diu XCHAL_DCACHE_SIZE XCHAL_DCACHE_LINEWIDTH
#endif
.endm
#endif
#if XCHAL_ICACHE_LINE_LOCKABLE
.macro ___unlock_icache_all ar at
#if XCHAL_ICACHE_LINE_LOCKABLE && XCHAL_ICACHE_SIZE
__loop_cache_all \ar \at iiu XCHAL_ICACHE_SIZE XCHAL_ICACHE_LINEWIDTH
#endif
.endm
#endif
.macro ___flush_invalidate_dcache_all ar at
......
arch/xtensa/include/asm/fixmap.h
浏览文件 @ d8ea757b
......@@ -59,6 +59,11 @@ enum fixed_addresses {
*/
static __always_inline unsigned long fix_to_virt(const unsigned int idx)
{
/* Check if this memory layout is broken because fixmap overlaps page
* table.
*/
BUILD_BUG_ON(FIXADDR_START <
XCHAL_PAGE_TABLE_VADDR + XCHAL_PAGE_TABLE_SIZE);
BUILD_BUG_ON(idx >= __end_of_fixed_addresses);
return __fix_to_virt(idx);
}
......
arch/xtensa/include/asm/highmem.h
浏览文件 @ d8ea757b
......@@ -68,6 +68,11 @@ void kunmap_high(struct page *page);
static inline void *kmap(struct page *page)
{
/* Check if this memory layout is broken because PKMAP overlaps
* page table.
*/
BUILD_BUG_ON(PKMAP_BASE <
XCHAL_PAGE_TABLE_VADDR + XCHAL_PAGE_TABLE_SIZE);
BUG_ON(in_interrupt());
if (!PageHighMem(page))
return page_address(page);
......
arch/xtensa/include/asm/initialize_mmu.h
浏览文件 @ d8ea757b
......@@ -77,13 +77,16 @@
.align 4
1: movi a2, 0x10000000
movi a3, 0x18000000
add a2, a2, a0
9: bgeu a2, a3, 9b /* PC is out of the expected range */
#if CONFIG_KERNEL_LOAD_ADDRESS < 0x40000000ul
#define TEMP_MAPPING_VADDR 0x40000000
#else
#define TEMP_MAPPING_VADDR 0x00000000
#endif
/* Step 1: invalidate mapping at 0x40000000..0x5FFFFFFF. */
movi a2, 0x40000000 | XCHAL_SPANNING_WAY
movi a2, TEMP_MAPPING_VADDR | XCHAL_SPANNING_WAY
idtlb a2
iitlb a2
isync
......@@ -95,14 +98,14 @@
srli a3, a0, 27
slli a3, a3, 27
addi a3, a3, CA_BYPASS
addi a7, a2, -1
addi a7, a2, 5 - XCHAL_SPANNING_WAY
wdtlb a3, a7
witlb a3, a7
isync
slli a4, a0, 5
srli a4, a4, 5
addi a5, a2, -6
addi a5, a2, -XCHAL_SPANNING_WAY
add a4, a4, a5
jx a4
......@@ -116,35 +119,48 @@
add a5, a5, a4
bne a5, a2, 3b
/* Step 4: Setup MMU with the old V2 mappings. */
/* Step 4: Setup MMU with the requested static mappings. */
movi a6, 0x01000000
wsr a6, ITLBCFG
wsr a6, DTLBCFG
isync
movi a5, 0xd0000005
movi a4, CA_WRITEBACK
movi a5, XCHAL_KSEG_CACHED_VADDR + XCHAL_KSEG_TLB_WAY
movi a4, XCHAL_KSEG_PADDR + CA_WRITEBACK
wdtlb a4, a5
witlb a4, a5
movi a5, 0xd8000005
movi a4, CA_BYPASS
movi a5, XCHAL_KSEG_BYPASS_VADDR + XCHAL_KSEG_TLB_WAY
movi a4, XCHAL_KSEG_PADDR + CA_BYPASS
wdtlb a4, a5
witlb a4, a5
movi a5, XCHAL_KIO_CACHED_VADDR + 6
#ifdef CONFIG_XTENSA_KSEG_512M
movi a5, XCHAL_KSEG_CACHED_VADDR + 0x10000000 + XCHAL_KSEG_TLB_WAY
movi a4, XCHAL_KSEG_PADDR + 0x10000000 + CA_WRITEBACK
wdtlb a4, a5
witlb a4, a5
movi a5, XCHAL_KSEG_BYPASS_VADDR + 0x10000000 + XCHAL_KSEG_TLB_WAY
movi a4, XCHAL_KSEG_PADDR + 0x10000000 + CA_BYPASS
wdtlb a4, a5
witlb a4, a5
#endif
movi a5, XCHAL_KIO_CACHED_VADDR + XCHAL_KIO_TLB_WAY
movi a4, XCHAL_KIO_DEFAULT_PADDR + CA_WRITEBACK
wdtlb a4, a5
witlb a4, a5
movi a5, XCHAL_KIO_BYPASS_VADDR + 6
movi a5, XCHAL_KIO_BYPASS_VADDR + XCHAL_KIO_TLB_WAY
movi a4, XCHAL_KIO_DEFAULT_PADDR + CA_BYPASS
wdtlb a4, a5
witlb a4, a5
isync
/* Jump to self, using MMU v2 mappings. */
/* Jump to self, using final mappings. */
movi a4, 1f
jx a4
......
arch/xtensa/include/asm/kmem_layout.h 0 → 100644
浏览文件 @ d8ea757b
/*
* Kernel virtual memory layout definitions.
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file "COPYING" in the main directory of
* this archive for more details.
*
* Copyright (C) 2016 Cadence Design Systems Inc.
*/
#ifndef _XTENSA_KMEM_LAYOUT_H
#define _XTENSA_KMEM_LAYOUT_H
#include <asm/types.h>
#ifdef CONFIG_MMU
/*
* Fixed TLB translations in the processor.
*/
#define XCHAL_PAGE_TABLE_VADDR __XTENSA_UL_CONST(0x80000000)
#define XCHAL_PAGE_TABLE_SIZE __XTENSA_UL_CONST(0x00400000)
#if defined(CONFIG_XTENSA_KSEG_MMU_V2)
#define XCHAL_KSEG_CACHED_VADDR __XTENSA_UL_CONST(0xd0000000)
#define XCHAL_KSEG_BYPASS_VADDR __XTENSA_UL_CONST(0xd8000000)
#define XCHAL_KSEG_SIZE __XTENSA_UL_CONST(0x08000000)
#define XCHAL_KSEG_ALIGNMENT __XTENSA_UL_CONST(0x08000000)
#define XCHAL_KSEG_TLB_WAY 5
#define XCHAL_KIO_TLB_WAY 6
#elif defined(CONFIG_XTENSA_KSEG_256M)
#define XCHAL_KSEG_CACHED_VADDR __XTENSA_UL_CONST(0xb0000000)
#define XCHAL_KSEG_BYPASS_VADDR __XTENSA_UL_CONST(0xc0000000)
#define XCHAL_KSEG_SIZE __XTENSA_UL_CONST(0x10000000)
#define XCHAL_KSEG_ALIGNMENT __XTENSA_UL_CONST(0x10000000)
#define XCHAL_KSEG_TLB_WAY 6
#define XCHAL_KIO_TLB_WAY 6
#elif defined(CONFIG_XTENSA_KSEG_512M)
#define XCHAL_KSEG_CACHED_VADDR __XTENSA_UL_CONST(0xa0000000)
#define XCHAL_KSEG_BYPASS_VADDR __XTENSA_UL_CONST(0xc0000000)
#define XCHAL_KSEG_SIZE __XTENSA_UL_CONST(0x20000000)
#define XCHAL_KSEG_ALIGNMENT __XTENSA_UL_CONST(0x10000000)
#define XCHAL_KSEG_TLB_WAY 6
#define XCHAL_KIO_TLB_WAY 6
#else
#error Unsupported KSEG configuration
#endif
#ifdef CONFIG_KSEG_PADDR
#define XCHAL_KSEG_PADDR __XTENSA_UL_CONST(CONFIG_KSEG_PADDR)
#else
#define XCHAL_KSEG_PADDR __XTENSA_UL_CONST(0x00000000)
#endif
#if XCHAL_KSEG_PADDR & (XCHAL_KSEG_ALIGNMENT - 1)
#error XCHAL_KSEG_PADDR is not properly aligned to XCHAL_KSEG_ALIGNMENT
#endif
#else
#define XCHAL_KSEG_CACHED_VADDR __XTENSA_UL_CONST(0xd0000000)
#define XCHAL_KSEG_BYPASS_VADDR __XTENSA_UL_CONST(0xd8000000)
#define XCHAL_KSEG_SIZE __XTENSA_UL_CONST(0x08000000)
#endif
#endif
arch/xtensa/include/asm/page.h
浏览文件 @ d8ea757b
......@@ -15,15 +15,7 @@
#include <asm/types.h>
#include <asm/cache.h>
#include <platform/hardware.h>
/*
* Fixed TLB translations in the processor.
*/
#define XCHAL_KSEG_CACHED_VADDR __XTENSA_UL_CONST(0xd0000000)
#define XCHAL_KSEG_BYPASS_VADDR __XTENSA_UL_CONST(0xd8000000)
#define XCHAL_KSEG_PADDR __XTENSA_UL_CONST(0x00000000)
#define XCHAL_KSEG_SIZE __XTENSA_UL_CONST(0x08000000)
#include <asm/kmem_layout.h>
/*
* PAGE_SHIFT determines the page size
......@@ -35,10 +27,13 @@
#ifdef CONFIG_MMU
#define PAGE_OFFSET XCHAL_KSEG_CACHED_VADDR
#define MAX_MEM_PFN XCHAL_KSEG_SIZE
#define PHYS_OFFSET XCHAL_KSEG_PADDR
#define MAX_LOW_PFN (PHYS_PFN(XCHAL_KSEG_PADDR) + \
PHYS_PFN(XCHAL_KSEG_SIZE))
#else
#define PAGE_OFFSET __XTENSA_UL_CONST(0)
#define MAX_MEM_PFN (PLATFORM_DEFAULT_MEM_START + PLATFORM_DEFAULT_MEM_SIZE)
#define PAGE_OFFSET PLATFORM_DEFAULT_MEM_START
#define PHYS_OFFSET PLATFORM_DEFAULT_MEM_START
#define MAX_LOW_PFN PHYS_PFN(0xfffffffful)
#endif
#define PGTABLE_START 0x80000000
......@@ -167,10 +162,12 @@ void copy_user_highpage(struct page *to, struct page *from,
* addresses.
*/
#define ARCH_PFN_OFFSET (PLATFORM_DEFAULT_MEM_START >> PAGE_SHIFT)
#define ARCH_PFN_OFFSET (PHYS_OFFSET >> PAGE_SHIFT)
#define __pa(x) ((unsigned long) (x) - PAGE_OFFSET)
#define __va(x) ((void *)((unsigned long) (x) + PAGE_OFFSET))
#define __pa(x) \
((unsigned long) (x) - PAGE_OFFSET + PHYS_OFFSET)
#define __va(x) \
((void *)((unsigned long) (x) - PHYS_OFFSET + PAGE_OFFSET))
#define pfn_valid(pfn) \
((pfn) >= ARCH_PFN_OFFSET && ((pfn) - ARCH_PFN_OFFSET) < max_mapnr)
......
arch/xtensa/include/asm/pgtable.h
浏览文件 @ d8ea757b
......@@ -13,6 +13,7 @@
#include <asm-generic/pgtable-nopmd.h>
#include <asm/page.h>
#include <asm/kmem_layout.h>
/*
* We only use two ring levels, user and kernel space.
......@@ -68,9 +69,9 @@
* Virtual memory area. We keep a distance to other memory regions to be
* on the safe side. We also use this area for cache aliasing.
*/
#define VMALLOC_START 0xC0000000
#define VMALLOC_END 0xC7FEFFFF
#define TLBTEMP_BASE_1 0xC7FF0000
#define VMALLOC_START (XCHAL_KSEG_CACHED_VADDR - 0x10000000)
#define VMALLOC_END (VMALLOC_START + 0x07FEFFFF)
#define TLBTEMP_BASE_1 (VMALLOC_END + 1)
#define TLBTEMP_BASE_2 (TLBTEMP_BASE_1 + DCACHE_WAY_SIZE)
#if 2 * DCACHE_WAY_SIZE > ICACHE_WAY_SIZE
#define TLBTEMP_SIZE (2 * DCACHE_WAY_SIZE)
......
arch/xtensa/include/asm/platform.h
浏览文件 @ d8ea757b
......@@ -69,4 +69,10 @@ extern int platform_pcibios_fixup (void);
*/
extern void platform_calibrate_ccount (void);
/*
* Flush and reset the mmu, simulate a processor reset, and
* jump to the reset vector.
*/
void cpu_reset(void) __attribute__((noreturn));
#endif /* _XTENSA_PLATFORM_H */
arch/xtensa/include/asm/processor.h
浏览文件 @ d8ea757b
......@@ -37,7 +37,7 @@
#ifdef CONFIG_MMU
#define TASK_SIZE __XTENSA_UL_CONST(0x40000000)
#else
#define TASK_SIZE (PLATFORM_DEFAULT_MEM_START + PLATFORM_DEFAULT_MEM_SIZE)
#define TASK_SIZE __XTENSA_UL_CONST(0xffffffff)
#endif
#define STACK_TOP TASK_SIZE
......
arch/xtensa/include/asm/sysmem.h
浏览文件 @ d8ea757b
......@@ -11,27 +11,8 @@
#ifndef _XTENSA_SYSMEM_H
#define _XTENSA_SYSMEM_H
#define SYSMEM_BANKS_MAX 31
#include <linux/memblock.h>
struct meminfo {
unsigned long start;
unsigned long end;
};
/*
* Bank array is sorted by .start.
* Banks don't overlap and there's at least one page gap
* between adjacent bank entries.
*/
struct sysmem_info {
int nr_banks;
struct meminfo bank[SYSMEM_BANKS_MAX];
};
extern struct sysmem_info sysmem;
int add_sysmem_bank(unsigned long start, unsigned long end);
int mem_reserve(unsigned long, unsigned long, int);
void bootmem_init(void);
void zones_init(void);
......
arch/xtensa/include/asm/vectors.h
浏览文件 @ d8ea757b
......@@ -20,6 +20,7 @@
#include <variant/core.h>
#include <platform/hardware.h>
#include <asm/kmem_layout.h>
#if XCHAL_HAVE_PTP_MMU
#define XCHAL_KIO_CACHED_VADDR 0xe0000000
......@@ -47,61 +48,42 @@ static inline unsigned long xtensa_get_kio_paddr(void)
#if defined(CONFIG_MMU)
/* Will Become VECBASE */
#define VIRTUAL_MEMORY_ADDRESS 0xD0000000
#if XCHAL_HAVE_PTP_MMU && XCHAL_HAVE_SPANNING_WAY
/* Image Virtual Start Address */
#define KERNELOFFSET 0xD0003000
#if defined(XCHAL_HAVE_PTP_MMU) && XCHAL_HAVE_PTP_MMU && XCHAL_HAVE_SPANNING_WAY
/* MMU v3 - XCHAL_HAVE_PTP_MMU == 1 */
#define LOAD_MEMORY_ADDRESS 0x00003000
#define KERNELOFFSET (XCHAL_KSEG_CACHED_VADDR + \
CONFIG_KERNEL_LOAD_ADDRESS - \
XCHAL_KSEG_PADDR)
#else
/* MMU V2 - XCHAL_HAVE_PTP_MMU == 0 */
#define LOAD_MEMORY_ADDRESS 0xD0003000
#define KERNELOFFSET CONFIG_KERNEL_LOAD_ADDRESS
#endif
#define RESET_VECTOR1_VADDR (VIRTUAL_MEMORY_ADDRESS + \
XCHAL_RESET_VECTOR1_PADDR)
#else /* !defined(CONFIG_MMU) */
/* MMU Not being used - Virtual == Physical */
/* VECBASE */
#define VIRTUAL_MEMORY_ADDRESS (PLATFORM_DEFAULT_MEM_START + 0x2000)
/* Location of the start of the kernel text, _start */
#define KERNELOFFSET CONFIG_KERNEL_LOAD_ADDRESS
/* Location of the start of the kernel text, _start */
#define KERNELOFFSET (PLATFORM_DEFAULT_MEM_START + 0x3000)
/* Loaded just above possibly live vectors */
#define LOAD_MEMORY_ADDRESS (PLATFORM_DEFAULT_MEM_START + 0x3000)
#define RESET_VECTOR1_VADDR (XCHAL_RESET_VECTOR1_VADDR)
#endif /* CONFIG_MMU */
#define XC_VADDR(offset) (VIRTUAL_MEMORY_ADDRESS + offset)
/* Used to set VECBASE register */
#define VECBASE_RESET_VADDR VIRTUAL_MEMORY_ADDRESS
#define RESET_VECTOR1_VADDR (XCHAL_RESET_VECTOR1_VADDR)
#define VECBASE_VADDR (KERNELOFFSET - CONFIG_VECTORS_OFFSET)
#if defined(XCHAL_HAVE_VECBASE) && XCHAL_HAVE_VECBASE
#define USER_VECTOR_VADDR XC_VADDR(XCHAL_USER_VECOFS)
#define KERNEL_VECTOR_VADDR XC_VADDR(XCHAL_KERNEL_VECOFS)
#define DOUBLEEXC_VECTOR_VADDR XC_VADDR(XCHAL_DOUBLEEXC_VECOFS)
#define WINDOW_VECTORS_VADDR XC_VADDR(XCHAL_WINDOW_OF4_VECOFS)
#define INTLEVEL2_VECTOR_VADDR XC_VADDR(XCHAL_INTLEVEL2_VECOFS)
#define INTLEVEL3_VECTOR_VADDR XC_VADDR(XCHAL_INTLEVEL3_VECOFS)
#define INTLEVEL4_VECTOR_VADDR XC_VADDR(XCHAL_INTLEVEL4_VECOFS)
#define INTLEVEL5_VECTOR_VADDR XC_VADDR(XCHAL_INTLEVEL5_VECOFS)
#define INTLEVEL6_VECTOR_VADDR XC_VADDR(XCHAL_INTLEVEL6_VECOFS)
#define DEBUG_VECTOR_VADDR XC_VADDR(XCHAL_DEBUG_VECOFS)
#define VECTOR_VADDR(offset) (VECBASE_VADDR + offset)
#define NMI_VECTOR_VADDR XC_VADDR(XCHAL_NMI_VECOFS)
#define INTLEVEL7_VECTOR_VADDR XC_VADDR(XCHAL_INTLEVEL7_VECOFS)
#define USER_VECTOR_VADDR VECTOR_VADDR(XCHAL_USER_VECOFS)
#define KERNEL_VECTOR_VADDR VECTOR_VADDR(XCHAL_KERNEL_VECOFS)
#define DOUBLEEXC_VECTOR_VADDR VECTOR_VADDR(XCHAL_DOUBLEEXC_VECOFS)
#define WINDOW_VECTORS_VADDR VECTOR_VADDR(XCHAL_WINDOW_OF4_VECOFS)
#define INTLEVEL2_VECTOR_VADDR VECTOR_VADDR(XCHAL_INTLEVEL2_VECOFS)
#define INTLEVEL3_VECTOR_VADDR VECTOR_VADDR(XCHAL_INTLEVEL3_VECOFS)
#define INTLEVEL4_VECTOR_VADDR VECTOR_VADDR(XCHAL_INTLEVEL4_VECOFS)
#define INTLEVEL5_VECTOR_VADDR VECTOR_VADDR(XCHAL_INTLEVEL5_VECOFS)
#define INTLEVEL6_VECTOR_VADDR VECTOR_VADDR(XCHAL_INTLEVEL6_VECOFS)
#define INTLEVEL7_VECTOR_VADDR VECTOR_VADDR(XCHAL_INTLEVEL7_VECOFS)
#define DEBUG_VECTOR_VADDR VECTOR_VADDR(XCHAL_DEBUG_VECOFS)
/*
* These XCHAL_* #defines from varian/core.h
......@@ -109,7 +91,6 @@ static inline unsigned long xtensa_get_kio_paddr(void)
* constants are defined above and should be used.
*/
#undef XCHAL_VECBASE_RESET_VADDR
#undef XCHAL_RESET_VECTOR0_VADDR
#undef XCHAL_USER_VECTOR_VADDR
#undef XCHAL_KERNEL_VECTOR_VADDR
#undef XCHAL_DOUBLEEXC_VECTOR_VADDR
......@@ -119,9 +100,8 @@ static inline unsigned long xtensa_get_kio_paddr(void)
#undef XCHAL_INTLEVEL4_VECTOR_VADDR
#undef XCHAL_INTLEVEL5_VECTOR_VADDR
#undef XCHAL_INTLEVEL6_VECTOR_VADDR
#undef XCHAL_DEBUG_VECTOR_VADDR
#undef XCHAL_NMI_VECTOR_VADDR
#undef XCHAL_INTLEVEL7_VECTOR_VADDR
#undef XCHAL_DEBUG_VECTOR_VADDR
#else
......@@ -134,6 +114,7 @@ static inline unsigned long xtensa_get_kio_paddr(void)
#define INTLEVEL4_VECTOR_VADDR XCHAL_INTLEVEL4_VECTOR_VADDR
#define INTLEVEL5_VECTOR_VADDR XCHAL_INTLEVEL5_VECTOR_VADDR
#define INTLEVEL6_VECTOR_VADDR XCHAL_INTLEVEL6_VECTOR_VADDR
#define INTLEVEL7_VECTOR_VADDR XCHAL_INTLEVEL6_VECTOR_VADDR
#define DEBUG_VECTOR_VADDR XCHAL_DEBUG_VECTOR_VADDR
#endif
......
arch/xtensa/include/uapi/asm/types.h
浏览文件 @ d8ea757b
......@@ -18,7 +18,8 @@
# define __XTENSA_UL_CONST(x) x
#else
# define __XTENSA_UL(x) ((unsigned long)(x))
# define __XTENSA_UL_CONST(x) x##UL
# define ___XTENSA_UL_CONST(x) x##UL
# define __XTENSA_UL_CONST(x) ___XTENSA_UL_CONST(x)
#endif
#ifndef __ASSEMBLY__
......
arch/xtensa/include/uapi/asm/unistd.h
浏览文件 @ d8ea757b
......@@ -754,7 +754,20 @@ __SYSCALL(340, sys_bpf, 3)
#define __NR_execveat 341
__SYSCALL(341, sys_execveat, 5)
#define __NR_syscall_count 342
#define __NR_userfaultfd 342
__SYSCALL(342, sys_userfaultfd, 1)
#define __NR_membarrier 343
__SYSCALL(343, sys_membarrier, 2)
#define __NR_mlock2 344
__SYSCALL(344, sys_mlock2, 3)
#define __NR_copy_file_range 345
__SYSCALL(345, sys_copy_file_range, 6)
#define __NR_preadv2 346
__SYSCALL(346, sys_preadv2, 6)
#define __NR_pwritev2 347
__SYSCALL(347, sys_pwritev2, 6)
#define __NR_syscall_count 348
/*
* sysxtensa syscall handler
......
arch/xtensa/kernel/entry.S
浏览文件 @ d8ea757b
......@@ -1632,10 +1632,11 @@ ENTRY(fast_second_level_miss)
* The messy computation for 'pteval' above really simplifies
* into the following:
*
* pteval = ((pmdval - PAGE_OFFSET) & PAGE_MASK) | PAGE_DIRECTORY
* pteval = ((pmdval - PAGE_OFFSET + PHYS_OFFSET) & PAGE_MASK)
* | PAGE_DIRECTORY
*/
movi a1, (-PAGE_OFFSET) & 0xffffffff
movi a1, (PHYS_OFFSET - PAGE_OFFSET) & 0xffffffff
add a0, a0, a1 # pmdval - PAGE_OFFSET
extui a1, a0, 0, PAGE_SHIFT # ... & PAGE_MASK
xor a0, a0, a1
......
arch/xtensa/kernel/head.S
浏览文件 @ d8ea757b
......@@ -113,7 +113,7 @@ ENTRY(_startup)
movi a0, 0
#if XCHAL_HAVE_VECBASE
movi a2, VECBASE_RESET_VADDR
movi a2, VECBASE_VADDR
wsr a2, vecbase
#endif
......
arch/xtensa/kernel/setup.c
浏览文件 @ d8ea757b
......@@ -7,6 +7,7 @@
*
* Copyright (C) 1995 Linus Torvalds
* Copyright (C) 2001 - 2005 Tensilica Inc.
* Copyright (C) 2014 - 2016 Cadence Design Systems Inc.
*
* Chris Zankel <chris@zankel.net>
* Joe Taylor <joe@tensilica.com, joetylr@yahoo.com>
......@@ -22,7 +23,6 @@
#include <linux/bootmem.h>
#include <linux/kernel.h>
#include <linux/percpu.h>
#include <linux/clk-provider.h>
#include <linux/cpu.h>
#include <linux/of.h>
#include <linux/of_fdt.h>
......@@ -114,7 +114,7 @@ static int __init parse_tag_mem(const bp_tag_t *tag)
if (mi->type != MEMORY_TYPE_CONVENTIONAL)
return -1;
return add_sysmem_bank(mi->start, mi->end);
return memblock_add(mi->start, mi->end - mi->start);
}
__tagtable(BP_TAG_MEMORY, parse_tag_mem);
......@@ -188,7 +188,6 @@ static int __init parse_bootparam(const bp_tag_t* tag)
}
#ifdef CONFIG_OF
bool __initdata dt_memory_scan = false;
#if !XCHAL_HAVE_PTP_MMU || XCHAL_HAVE_SPANNING_WAY
unsigned long xtensa_kio_paddr = XCHAL_KIO_DEFAULT_PADDR;
......@@ -228,11 +227,8 @@ static int __init xtensa_dt_io_area(unsigned long node, const char *uname,
void __init early_init_dt_add_memory_arch(u64 base, u64 size)
{
if (!dt_memory_scan)
return;
size &= PAGE_MASK;
add_sysmem_bank(base, base + size);
memblock_add(base, size);
}
void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
......@@ -242,9 +238,6 @@ void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
void __init early_init_devtree(void *params)
{
if (sysmem.nr_banks == 0)
dt_memory_scan = true;
early_init_dt_scan(params);
of_scan_flat_dt(xtensa_dt_io_area, NULL);
......@@ -252,14 +245,6 @@ void __init early_init_devtree(void *params)
strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
}
static int __init xtensa_device_probe(void)
{
of_clk_init(NULL);
return 0;
}
device_initcall(xtensa_device_probe);
#endif /* CONFIG_OF */
/*
......@@ -277,12 +262,6 @@ void __init init_arch(bp_tag_t *bp_start)
early_init_devtree(dtb_start);
#endif
if (sysmem.nr_banks == 0) {
add_sysmem_bank(PLATFORM_DEFAULT_MEM_START,
PLATFORM_DEFAULT_MEM_START +
PLATFORM_DEFAULT_MEM_SIZE);
}
#ifdef CONFIG_CMDLINE_BOOL
if (!command_line[0])
strlcpy(command_line, default_command_line, COMMAND_LINE_SIZE);
......@@ -452,6 +431,10 @@ static int __init check_s32c1i(void)
early_initcall(check_s32c1i);
#endif /* CONFIG_S32C1I_SELFTEST */
static inline int mem_reserve(unsigned long start, unsigned long end)
{
return memblock_reserve(start, end - start);
}
void __init setup_arch(char **cmdline_p)
{
......@@ -463,54 +446,54 @@ void __init setup_arch(char **cmdline_p)
#ifdef CONFIG_BLK_DEV_INITRD
if (initrd_start < initrd_end) {
initrd_is_mapped = mem_reserve(__pa(initrd_start),
__pa(initrd_end), 0) == 0;
__pa(initrd_end)) == 0;
initrd_below_start_ok = 1;
} else {
initrd_start = 0;
}
#endif
mem_reserve(__pa(&_stext),__pa(&_end), 1);
mem_reserve(__pa(&_stext), __pa(&_end));
mem_reserve(__pa(&_WindowVectors_text_start),
__pa(&_WindowVectors_text_end), 0);
__pa(&_WindowVectors_text_end));
mem_reserve(__pa(&_DebugInterruptVector_literal_start),
__pa(&_DebugInterruptVector_text_end), 0);
__pa(&_DebugInterruptVector_text_end));
mem_reserve(__pa(&_KernelExceptionVector_literal_start),
__pa(&_KernelExceptionVector_text_end), 0);
__pa(&_KernelExceptionVector_text_end));
mem_reserve(__pa(&_UserExceptionVector_literal_start),
__pa(&_UserExceptionVector_text_end), 0);
__pa(&_UserExceptionVector_text_end));
mem_reserve(__pa(&_DoubleExceptionVector_literal_start),
__pa(&_DoubleExceptionVector_text_end), 0);
__pa(&_DoubleExceptionVector_text_end));
#if XCHAL_EXCM_LEVEL >= 2
mem_reserve(__pa(&_Level2InterruptVector_text_start),
__pa(&_Level2InterruptVector_text_end), 0);
__pa(&_Level2InterruptVector_text_end));
#endif
#if XCHAL_EXCM_LEVEL >= 3
mem_reserve(__pa(&_Level3InterruptVector_text_start),
__pa(&_Level3InterruptVector_text_end), 0);
__pa(&_Level3InterruptVector_text_end));
#endif
#if XCHAL_EXCM_LEVEL >= 4
mem_reserve(__pa(&_Level4InterruptVector_text_start),
__pa(&_Level4InterruptVector_text_end), 0);
__pa(&_Level4InterruptVector_text_end));
#endif
#if XCHAL_EXCM_LEVEL >= 5
mem_reserve(__pa(&_Level5InterruptVector_text_start),
__pa(&_Level5InterruptVector_text_end), 0);
__pa(&_Level5InterruptVector_text_end));
#endif
#if XCHAL_EXCM_LEVEL >= 6
mem_reserve(__pa(&_Level6InterruptVector_text_start),
__pa(&_Level6InterruptVector_text_end), 0);
__pa(&_Level6InterruptVector_text_end));
#endif
#ifdef CONFIG_SMP
mem_reserve(__pa(&_SecondaryResetVector_text_start),
__pa(&_SecondaryResetVector_text_end), 0);
__pa(&_SecondaryResetVector_text_end));
#endif
parse_early_param();
bootmem_init();
......@@ -555,6 +538,137 @@ static int __init topology_init(void)
}
subsys_initcall(topology_init);
void cpu_reset(void)
{
#if XCHAL_HAVE_PTP_MMU
local_irq_disable();
/*
* We have full MMU: all autoload ways, ways 7, 8 and 9 of DTLB must
* be flushed.
* Way 4 is not currently used by linux.
* Ways 5 and 6 shall not be touched on MMUv2 as they are hardwired.
* Way 5 shall be flushed and way 6 shall be set to identity mapping
* on MMUv3.
*/
local_flush_tlb_all();
invalidate_page_directory();
#if XCHAL_HAVE_SPANNING_WAY
/* MMU v3 */
{
unsigned long vaddr = (unsigned long)cpu_reset;
unsigned long paddr = __pa(vaddr);
unsigned long tmpaddr = vaddr + SZ_512M;
unsigned long tmp0, tmp1, tmp2, tmp3;
/*
* Find a place for the temporary mapping. It must not be
* in the same 512MB region with vaddr or paddr, otherwise
* there may be multihit exception either on entry to the
* temporary mapping, or on entry to the identity mapping.
* (512MB is the biggest page size supported by TLB.)
*/
while (((tmpaddr ^ paddr) & -SZ_512M) == 0)
tmpaddr += SZ_512M;
/* Invalidate mapping in the selected temporary area */
if (itlb_probe(tmpaddr) & 0x8)
invalidate_itlb_entry(itlb_probe(tmpaddr));
if (itlb_probe(tmpaddr + PAGE_SIZE) & 0x8)
invalidate_itlb_entry(itlb_probe(tmpaddr + PAGE_SIZE));
/*
* Map two consecutive pages starting at the physical address
* of this function to the temporary mapping area.
*/
write_itlb_entry(__pte((paddr & PAGE_MASK) |
_PAGE_HW_VALID |
_PAGE_HW_EXEC |
_PAGE_CA_BYPASS),
tmpaddr & PAGE_MASK);
write_itlb_entry(__pte(((paddr & PAGE_MASK) + PAGE_SIZE) |
_PAGE_HW_VALID |
_PAGE_HW_EXEC |
_PAGE_CA_BYPASS),
(tmpaddr & PAGE_MASK) + PAGE_SIZE);
/* Reinitialize TLB */
__asm__ __volatile__ ("movi %0, 1f\n\t"
"movi %3, 2f\n\t"
"add %0, %0, %4\n\t"
"add %3, %3, %5\n\t"
"jx %0\n"
/*
* No literal, data or stack access
* below this point
*/
"1:\n\t"
/* Initialize *tlbcfg */
"movi %0, 0\n\t"
"wsr %0, itlbcfg\n\t"
"wsr %0, dtlbcfg\n\t"
/* Invalidate TLB way 5 */
"movi %0, 4\n\t"
"movi %1, 5\n"
"1:\n\t"
"iitlb %1\n\t"
"idtlb %1\n\t"
"add %1, %1, %6\n\t"
"addi %0, %0, -1\n\t"
"bnez %0, 1b\n\t"
/* Initialize TLB way 6 */
"movi %0, 7\n\t"
"addi %1, %9, 3\n\t"
"addi %2, %9, 6\n"
"1:\n\t"
"witlb %1, %2\n\t"
"wdtlb %1, %2\n\t"
"add %1, %1, %7\n\t"
"add %2, %2, %7\n\t"
"addi %0, %0, -1\n\t"
"bnez %0, 1b\n\t"
/* Jump to identity mapping */
"jx %3\n"
"2:\n\t"
/* Complete way 6 initialization */
"witlb %1, %2\n\t"
"wdtlb %1, %2\n\t"
/* Invalidate temporary mapping */
"sub %0, %9, %7\n\t"
"iitlb %0\n\t"
"add %0, %0, %8\n\t"
"iitlb %0"
: "=&a"(tmp0), "=&a"(tmp1), "=&a"(tmp2),
"=&a"(tmp3)
: "a"(tmpaddr - vaddr),
"a"(paddr - vaddr),
"a"(SZ_128M), "a"(SZ_512M),
"a"(PAGE_SIZE),
"a"((tmpaddr + SZ_512M) & PAGE_MASK)
: "memory");
}
#endif
#endif
__asm__ __volatile__ ("movi a2, 0\n\t"
"wsr a2, icountlevel\n\t"
"movi a2, 0\n\t"
"wsr a2, icount\n\t"
#if XCHAL_NUM_IBREAK > 0
"wsr a2, ibreakenable\n\t"
#endif
#if XCHAL_HAVE_LOOPS
"wsr a2, lcount\n\t"
#endif
"movi a2, 0x1f\n\t"
"wsr a2, ps\n\t"
"isync\n\t"
"jx %0\n\t"
:
: "a" (XCHAL_RESET_VECTOR_VADDR)
: "a2");
for (;;)
;
}
void machine_restart(char * cmd)
{
platform_restart();
......
arch/xtensa/kernel/time.c
浏览文件 @ d8ea757b
......@@ -12,6 +12,8 @@
* Chris Zankel <chris@zankel.net>
*/
#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/time.h>
......@@ -134,16 +136,52 @@ void local_timer_setup(unsigned cpu)
0xf, 0xffffffff);
}
#ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT
#ifdef CONFIG_OF
static void __init calibrate_ccount(void)
{
struct device_node *cpu;
struct clk *clk;
cpu = of_find_compatible_node(NULL, NULL, "cdns,xtensa-cpu");
if (cpu) {
clk = of_clk_get(cpu, 0);
if (!IS_ERR(clk)) {
ccount_freq = clk_get_rate(clk);
return;
} else {
pr_warn("%s: CPU input clock not found\n",
__func__);
}
} else {
pr_warn("%s: CPU node not found in the device tree\n",
__func__);
}
platform_calibrate_ccount();
}
#else
static inline void calibrate_ccount(void)
{
platform_calibrate_ccount();
}
#endif
#endif
void __init time_init(void)
{
of_clk_init(NULL);
#ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT
printk("Calibrating CPU frequency ");
platform_calibrate_ccount();
calibrate_ccount();
printk("%d.%02d MHz\n", (int)ccount_freq/1000000,
(int)(ccount_freq/10000)%100);
#else
ccount_freq = CONFIG_XTENSA_CPU_CLOCK*1000000UL;
#endif
WARN(!ccount_freq,
"%s: CPU clock frequency is not set up correctly\n",
__func__);
clocksource_register_hz(&ccount_clocksource, ccount_freq);
local_timer_setup(0);
setup_irq(this_cpu_ptr(&ccount_timer)->evt.irq, &timer_irqaction);
......
arch/xtensa/kernel/vmlinux.lds.S
浏览文件 @ d8ea757b
......@@ -30,10 +30,6 @@ jiffies = jiffies_64 + 4;
jiffies = jiffies_64;
#endif
#ifndef KERNELOFFSET
#define KERNELOFFSET 0xd0003000
#endif
/* Note: In the following macros, it would be nice to specify only the
vector name and section kind and construct "sym" and "section" using
CPP concatenation, but that does not work reliably. Concatenating a
......
arch/xtensa/mm/init.c
浏览文件 @ d8ea757b
......@@ -8,7 +8,7 @@
* for more details.
*
* Copyright (C) 2001 - 2005 Tensilica Inc.
* Copyright (C) 2014 Cadence Design Systems Inc.
* Copyright (C) 2014 - 2016 Cadence Design Systems Inc.
*
* Chris Zankel <chris@zankel.net>
* Joe Taylor <joe@tensilica.com, joetylr@yahoo.com>
......@@ -25,284 +25,43 @@
#include <linux/mman.h>
#include <linux/nodemask.h>
#include <linux/mm.h>
#include <linux/of_fdt.h>
#include <asm/bootparam.h>
#include <asm/page.h>
#include <asm/sections.h>
#include <asm/sysmem.h>
struct sysmem_info sysmem __initdata;
static void __init sysmem_dump(void)
{
unsigned i;
pr_debug("Sysmem:\n");
for (i = 0; i < sysmem.nr_banks; ++i)
pr_debug(" 0x%08lx - 0x%08lx (%ldK)\n",
sysmem.bank[i].start, sysmem.bank[i].end,
(sysmem.bank[i].end - sysmem.bank[i].start) >> 10);
}
/*
* Find bank with maximal .start such that bank.start <= start
*/
static inline struct meminfo * __init find_bank(unsigned long start)
{
unsigned i;
struct meminfo *it = NULL;
for (i = 0; i < sysmem.nr_banks; ++i)
if (sysmem.bank[i].start <= start)
it = sysmem.bank + i;
else
break;
return it;
}
/*
* Move all memory banks starting at 'from' to a new place at 'to',
* adjust nr_banks accordingly.
* Both 'from' and 'to' must be inside the sysmem.bank.
*
* Returns: 0 (success), -ENOMEM (not enough space in the sysmem.bank).
*/
static int __init move_banks(struct meminfo *to, struct meminfo *from)
{
unsigned n = sysmem.nr_banks - (from - sysmem.bank);
if (to > from && to - from + sysmem.nr_banks > SYSMEM_BANKS_MAX)
return -ENOMEM;
if (to != from)
memmove(to, from, n * sizeof(struct meminfo));
sysmem.nr_banks += to - from;
return 0;
}
/*
* Add new bank to sysmem. Resulting sysmem is the union of bytes of the
* original sysmem and the new bank.
*
* Returns: 0 (success), < 0 (error)
*/
int __init add_sysmem_bank(unsigned long start, unsigned long end)
{
unsigned i;
struct meminfo *it = NULL;
unsigned long sz;
unsigned long bank_sz = 0;
if (start == end ||
(start < end) != (PAGE_ALIGN(start) < (end & PAGE_MASK))) {
pr_warn("Ignoring small memory bank 0x%08lx size: %ld bytes\n",
start, end - start);
return -EINVAL;
}
start = PAGE_ALIGN(start);
end &= PAGE_MASK;
sz = end - start;
it = find_bank(start);
if (it)
bank_sz = it->end - it->start;
if (it && bank_sz >= start - it->start) {
if (end - it->start > bank_sz)
it->end = end;
else
return 0;
} else {
if (!it)
it = sysmem.bank;
else
++it;
if (it - sysmem.bank < sysmem.nr_banks &&
it->start - start <= sz) {
it->start = start;
if (it->end - it->start < sz)
it->end = end;
else
return 0;
} else {
if (move_banks(it + 1, it) < 0) {
pr_warn("Ignoring memory bank 0x%08lx size %ld bytes\n",
start, end - start);
return -EINVAL;
}
it->start = start;
it->end = end;
return 0;
}
}
sz = it->end - it->start;
for (i = it + 1 - sysmem.bank; i < sysmem.nr_banks; ++i)
if (sysmem.bank[i].start - it->start <= sz) {
if (sz < sysmem.bank[i].end - it->start)
it->end = sysmem.bank[i].end;
} else {
break;
}
move_banks(it + 1, sysmem.bank + i);
return 0;
}
/*
* mem_reserve(start, end, must_exist)
*
* Reserve some memory from the memory pool.
* If must_exist is set and a part of the region being reserved does not exist
* memory map is not altered.
*
* Parameters:
* start Start of region,
* end End of region,
* must_exist Must exist in memory pool.
*
* Returns:
* 0 (success)
* < 0 (error)
*/
int __init mem_reserve(unsigned long start, unsigned long end, int must_exist)
{
struct meminfo *it;
struct meminfo *rm = NULL;
unsigned long sz;
unsigned long bank_sz = 0;
start = start & PAGE_MASK;
end = PAGE_ALIGN(end);
sz = end - start;
if (!sz)
return -EINVAL;
it = find_bank(start);
if (it)
bank_sz = it->end - it->start;
if ((!it || end - it->start > bank_sz) && must_exist) {
pr_warn("mem_reserve: [0x%0lx, 0x%0lx) not in any region!\n",
start, end);
return -EINVAL;
}
if (it && start - it->start <= bank_sz) {
if (start == it->start) {
if (end - it->start < bank_sz) {
it->start = end;
return 0;
} else {
rm = it;
}
} else {
it->end = start;
if (end - it->start < bank_sz)
return add_sysmem_bank(end,
it->start + bank_sz);
++it;
}
}
if (!it)
it = sysmem.bank;
for (; it < sysmem.bank + sysmem.nr_banks; ++it) {
if (it->end - start <= sz) {
if (!rm)
rm = it;
} else {
if (it->start - start < sz)
it->start = end;
break;
}
}
if (rm)
move_banks(rm, it);
return 0;
}
/*
* Initialize the bootmem system and give it all low memory we have available.
*/
void __init bootmem_init(void)
{
unsigned long pfn;
unsigned long bootmap_start, bootmap_size;
int i;
/* Reserve all memory below PLATFORM_DEFAULT_MEM_START, as memory
/* Reserve all memory below PHYS_OFFSET, as memory
* accounting doesn't work for pages below that address.
*
* If PLATFORM_DEFAULT_MEM_START is zero reserve page at address 0:
* If PHYS_OFFSET is zero reserve page at address 0:
* successfull allocations should never return NULL.
*/
if (PLATFORM_DEFAULT_MEM_START)
mem_reserve(0, PLATFORM_DEFAULT_MEM_START, 0);
if (PHYS_OFFSET)
memblock_reserve(0, PHYS_OFFSET);
else
mem_reserve(0, 1, 0);
memblock_reserve(0, 1);
sysmem_dump();
max_low_pfn = max_pfn = 0;
min_low_pfn = ~0;
for (i=0; i < sysmem.nr_banks; i++) {
pfn = PAGE_ALIGN(sysmem.bank[i].start) >> PAGE_SHIFT;
if (pfn < min_low_pfn)
min_low_pfn = pfn;
pfn = PAGE_ALIGN(sysmem.bank[i].end - 1) >> PAGE_SHIFT;
if (pfn > max_pfn)
max_pfn = pfn;
}
early_init_fdt_scan_reserved_mem();
if (min_low_pfn > max_pfn)
if (!memblock_phys_mem_size())
panic("No memory found!\n");
max_low_pfn = max_pfn < MAX_MEM_PFN >> PAGE_SHIFT ?
max_pfn : MAX_MEM_PFN >> PAGE_SHIFT;
min_low_pfn = PFN_UP(memblock_start_of_DRAM());
min_low_pfn = max(min_low_pfn, PFN_UP(PHYS_OFFSET));
max_pfn = PFN_DOWN(memblock_end_of_DRAM());
max_low_pfn = min(max_pfn, MAX_LOW_PFN);
/* Find an area to use for the bootmem bitmap. */
bootmap_size = bootmem_bootmap_pages(max_low_pfn - min_low_pfn);
bootmap_size <<= PAGE_SHIFT;
bootmap_start = ~0;
for (i=0; i<sysmem.nr_banks; i++)
if (sysmem.bank[i].end - sysmem.bank[i].start >= bootmap_size) {
bootmap_start = sysmem.bank[i].start;
break;
}
if (bootmap_start == ~0UL)
panic("Cannot find %ld bytes for bootmap\n", bootmap_size);
/* Reserve the bootmem bitmap area */
mem_reserve(bootmap_start, bootmap_start + bootmap_size, 1);
bootmap_size = init_bootmem_node(NODE_DATA(0),
bootmap_start >> PAGE_SHIFT,
min_low_pfn,
max_low_pfn);
/* Add all remaining memory pieces into the bootmem map */
for (i = 0; i < sysmem.nr_banks; i++) {
if (sysmem.bank[i].start >> PAGE_SHIFT < max_low_pfn) {
unsigned long end = min(max_low_pfn << PAGE_SHIFT,
sysmem.bank[i].end);
free_bootmem(sysmem.bank[i].start,
end - sysmem.bank[i].start);
}
}
memblock_set_current_limit(PFN_PHYS(max_low_pfn));
memblock_dump_all();
}
......@@ -344,7 +103,7 @@ void __init mem_init(void)
" fixmap : 0x%08lx - 0x%08lx (%5lu kB)\n"
#endif
#ifdef CONFIG_MMU
" vmalloc : 0x%08x - 0x%08x (%5u MB)\n"
" vmalloc : 0x%08lx - 0x%08lx (%5lu MB)\n"
#endif
" lowmem : 0x%08lx - 0x%08lx (%5lu MB)\n",
#ifdef CONFIG_HIGHMEM
......@@ -395,16 +154,16 @@ static void __init parse_memmap_one(char *p)
switch (*p) {
case '@':
start_at = memparse(p + 1, &p);
add_sysmem_bank(start_at, start_at + mem_size);
memblock_add(start_at, mem_size);
break;
case '$':
start_at = memparse(p + 1, &p);
mem_reserve(start_at, start_at + mem_size, 0);
memblock_reserve(start_at, mem_size);
break;
case 0:
mem_reserve(mem_size, 0, 0);
memblock_reserve(mem_size, -mem_size);
break;
default:
......
arch/xtensa/platforms/iss/include/platform/simcall.h
浏览文件 @ d8ea757b
......@@ -76,6 +76,11 @@ static inline int __simc(int a, int b, int c, int d)
return ret;
}
static inline int simc_exit(int exit_code)
{
return __simc(SYS_exit, exit_code, 0, 0);
}
static inline int simc_open(const char *file, int flags, int mode)
{
return __simc(SYS_open, (int) file, flags, mode);
......
arch/xtensa/platforms/iss/setup.c
浏览文件 @ d8ea757b
......@@ -32,6 +32,8 @@
#include <asm/platform.h>
#include <asm/bootparam.h>
#include <platform/simcall.h>
void __init platform_init(bp_tag_t* bootparam)
{
......@@ -41,37 +43,19 @@ void __init platform_init(bp_tag_t* bootparam)
void platform_halt(void)
{
pr_info(" ** Called platform_halt() **\n");
__asm__ __volatile__("movi a2, 1\nsimcall\n");
simc_exit(0);
}
void platform_power_off(void)
{
pr_info(" ** Called platform_power_off() **\n");
__asm__ __volatile__("movi a2, 1\nsimcall\n");
simc_exit(0);
}
void platform_restart(void)
{
/* Flush and reset the mmu, simulate a processor reset, and
* jump to the reset vector. */
__asm__ __volatile__("movi a2, 15\n\t"
"wsr a2, icountlevel\n\t"
"movi a2, 0\n\t"
"wsr a2, icount\n\t"
#if XCHAL_NUM_IBREAK > 0
"wsr a2, ibreakenable\n\t"
#endif
#if XCHAL_HAVE_LOOPS
"wsr a2, lcount\n\t"
#endif
"movi a2, 0x1f\n\t"
"wsr a2, ps\n\t"
"isync\n\t"
"jx %0\n\t"
:
: "a" (XCHAL_RESET_VECTOR_VADDR)
: "a2");
cpu_reset();
/* control never gets here */
}
......@@ -98,7 +82,7 @@ void platform_heartbeat(void)
static int
iss_panic_event(struct notifier_block *this, unsigned long event, void *ptr)
{
__asm__ __volatile__("movi a2, -1; simcall\n");
simc_exit(1);
return NOTIFY_DONE;
}
......
arch/xtensa/platforms/iss/simdisk.c
浏览文件 @ d8ea757b
......@@ -86,6 +86,7 @@ static void simdisk_transfer(struct simdisk *dev, unsigned long sector,
unsigned long io;
simc_lseek(dev->fd, offset, SEEK_SET);
READ_ONCE(*buffer);
if (write)
io = simc_write(dev->fd, buffer, nbytes);
else
......
arch/xtensa/platforms/xt2000/setup.c
浏览文件 @ d8ea757b
......@@ -64,26 +64,7 @@ void platform_restart(void)
{
/* Flush and reset the mmu, simulate a processor reset, and
* jump to the reset vector. */
__asm__ __volatile__ ("movi a2, 15\n\t"
"wsr a2, icountlevel\n\t"
"movi a2, 0\n\t"
"wsr a2, icount\n\t"
#if XCHAL_NUM_IBREAK > 0
"wsr a2, ibreakenable\n\t"
#endif
#if XCHAL_HAVE_LOOPS
"wsr a2, lcount\n\t"
#endif
"movi a2, 0x1f\n\t"
"wsr a2, ps\n\t"
"isync\n\t"
"jx %0\n\t"
:
: "a" (XCHAL_RESET_VECTOR_VADDR)
: "a2"
);
cpu_reset();
/* control never gets here */
}
......
arch/xtensa/platforms/xtfpga/setup.c
浏览文件 @ d8ea757b
......@@ -26,6 +26,8 @@
#include <linux/console.h>
#include <linux/delay.h>
#include <linux/of.h>
#include <linux/clk-provider.h>
#include <linux/of_address.h>
#include <asm/timex.h>
#include <asm/processor.h>
......@@ -54,58 +56,63 @@ void platform_restart(void)
{
/* Flush and reset the mmu, simulate a processor reset, and
* jump to the reset vector. */
cpu_reset();
/* control never gets here */
}
void __init platform_setup(char **cmdline)
{
}
__asm__ __volatile__ ("movi a2, 15\n\t"
"wsr a2, icountlevel\n\t"
"movi a2, 0\n\t"
"wsr a2, icount\n\t"
#if XCHAL_NUM_IBREAK > 0
"wsr a2, ibreakenable\n\t"
#endif
#if XCHAL_HAVE_LOOPS
"wsr a2, lcount\n\t"
#endif
"movi a2, 0x1f\n\t"
"wsr a2, ps\n\t"
"isync\n\t"
"jx %0\n\t"
:
: "a" (XCHAL_RESET_VECTOR_VADDR)
: "a2"
);
/* early initialization */
/* control never gets here */
void __init platform_init(bp_tag_t *first)
{
}
void __init platform_setup(char **cmdline)
/* Heartbeat. */
void platform_heartbeat(void)
{
}
#ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT
void __init platform_calibrate_ccount(void)
{
ccount_freq = *(long *)XTFPGA_CLKFRQ_VADDR;
}
#endif
#ifdef CONFIG_OF
static void __init update_clock_frequency(struct device_node *node)
static void __init xtfpga_clk_setup(struct device_node *np)
{
struct property *newfreq;
void __iomem *base = of_iomap(np, 0);
struct clk *clk;
u32 freq;
if (!of_property_read_u32(node, "clock-frequency", &freq) && freq != 0)
if (!base) {
pr_err("%s: invalid address\n", np->name);
return;
}
newfreq = kzalloc(sizeof(*newfreq) + sizeof(u32), GFP_KERNEL);
if (!newfreq)
return;
newfreq->value = newfreq + 1;
newfreq->length = sizeof(freq);
newfreq->name = kstrdup("clock-frequency", GFP_KERNEL);
if (!newfreq->name) {
kfree(newfreq);
freq = __raw_readl(base);
iounmap(base);
clk = clk_register_fixed_rate(NULL, np->name, NULL, 0, freq);
if (IS_ERR(clk)) {
pr_err("%s: clk registration failed\n", np->name);
return;
}
*(u32 *)newfreq->value = cpu_to_be32(*(u32 *)XTFPGA_CLKFRQ_VADDR);
of_update_property(node, newfreq);
if (of_clk_add_provider(np, of_clk_src_simple_get, clk)) {
pr_err("%s: clk provider registration failed\n", np->name);
return;
}
}
CLK_OF_DECLARE(xtfpga_clk, "cdns,xtfpga-clock", xtfpga_clk_setup);
#define MAC_LEN 6
static void __init update_local_mac(struct device_node *node)
......@@ -137,56 +144,15 @@ static void __init update_local_mac(struct device_node *node)
static int __init machine_setup(void)
{
struct device_node *clock;
struct device_node *eth = NULL;
for_each_node_by_name(clock, "main-oscillator")
update_clock_frequency(clock);
if ((eth = of_find_compatible_node(eth, NULL, "opencores,ethoc")))
update_local_mac(eth);
return 0;
}
arch_initcall(machine_setup);
#endif
/* early initialization */
void __init platform_init(bp_tag_t *first)
{
}
/* Heartbeat. */
void platform_heartbeat(void)
{
}
#ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT
void __init platform_calibrate_ccount(void)
{
long clk_freq = 0;
#ifdef CONFIG_OF
struct device_node *cpu =
of_find_compatible_node(NULL, NULL, "cdns,xtensa-cpu");
if (cpu) {
u32 freq;
update_clock_frequency(cpu);
if (!of_property_read_u32(cpu, "clock-frequency", &freq))
clk_freq = freq;
}
#endif
if (!clk_freq)
clk_freq = *(long *)XTFPGA_CLKFRQ_VADDR;
ccount_freq = clk_freq;
}
#endif
#ifndef CONFIG_OF
#else
#include <linux/serial_8250.h>
#include <linux/if.h>
......
arch/xtensa/variants/csp/include/variant/core.h 0 → 100644
浏览文件 @ d8ea757b
此差异已折叠。
arch/xtensa/variants/csp/include/variant/tie-asm.h 0 → 100644
浏览文件 @ d8ea757b
/*
* tie-asm.h -- compile-time HAL assembler definitions dependent on CORE & TIE
*
* NOTE: This header file is not meant to be included directly.
*/
/* This header file contains assembly-language definitions (assembly
macros, etc.) for this specific Xtensa processor's TIE extensions
and options. It is customized to this Xtensa processor configuration.
Copyright (c) 1999-2015 Cadence Design Systems Inc.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
#ifndef _XTENSA_CORE_TIE_ASM_H
#define _XTENSA_CORE_TIE_ASM_H
/* Selection parameter values for save-area save/restore macros: */
/* Option vs. TIE: */
#define XTHAL_SAS_TIE 0x0001 /* custom extension or coprocessor */
#define XTHAL_SAS_OPT 0x0002 /* optional (and not a coprocessor) */
#define XTHAL_SAS_ANYOT 0x0003 /* both of the above */
/* Whether used automatically by compiler: */
#define XTHAL_SAS_NOCC 0x0004 /* not used by compiler w/o special opts/code */
#define XTHAL_SAS_CC 0x0008 /* used by compiler without special opts/code */
#define XTHAL_SAS_ANYCC 0x000C /* both of the above */
/* ABI handling across function calls: */
#define XTHAL_SAS_CALR 0x0010 /* caller-saved */
#define XTHAL_SAS_CALE 0x0020 /* callee-saved */
#define XTHAL_SAS_GLOB 0x0040 /* global across function calls (in thread) */
#define XTHAL_SAS_ANYABI 0x0070 /* all of the above three */
/* Misc */
#define XTHAL_SAS_ALL 0xFFFF /* include all default NCP contents */
#define XTHAL_SAS3(optie,ccuse,abi) ( ((optie) & XTHAL_SAS_ANYOT) \
| ((ccuse) & XTHAL_SAS_ANYCC) \
| ((abi) & XTHAL_SAS_ANYABI) )
/*
* Macro to store all non-coprocessor (extra) custom TIE and optional state
* (not including zero-overhead loop registers).
* Required parameters:
* ptr Save area pointer address register (clobbered)
* (register must contain a 4 byte aligned address).
* at1..at4 Four temporary address registers (first XCHAL_NCP_NUM_ATMPS
* registers are clobbered, the remaining are unused).
* Optional parameters:
* continue If macro invoked as part of a larger store sequence, set to 1
* if this is not the first in the sequence. Defaults to 0.
* ofs Offset from start of larger sequence (from value of first ptr
* in sequence) at which to store. Defaults to next available space
* (or 0 if <continue> is 0).
* select Select what category(ies) of registers to store, as a bitmask
* (see XTHAL_SAS_xxx constants). Defaults to all registers.
* alloc Select what category(ies) of registers to allocate; if any
* category is selected here that is not in <select>, space for
* the corresponding registers is skipped without doing any store.
*/
.macro xchal_ncp_store ptr at1 at2 at3 at4 continue=0 ofs=-1 select=XTHAL_SAS_ALL alloc=0
xchal_sa_start \continue, \ofs
// Optional global registers used by default by the compiler:
.ifeq (XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_GLOB) & ~(\select)
xchal_sa_align \ptr, 0, 1020, 4, 4
rur.THREADPTR \at1 // threadptr option
s32i \at1, \ptr, .Lxchal_ofs_+0
.set .Lxchal_ofs_, .Lxchal_ofs_ + 4
.elseif ((XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_GLOB) & ~(\alloc)) == 0
xchal_sa_align \ptr, 0, 1020, 4, 4
.set .Lxchal_ofs_, .Lxchal_ofs_ + 4
.endif
// Optional caller-saved registers used by default by the compiler:
.ifeq (XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_CALR) & ~(\select)
xchal_sa_align \ptr, 0, 1016, 4, 4
rsr.ACCLO \at1 // MAC16 option
s32i \at1, \ptr, .Lxchal_ofs_+0
rsr.ACCHI \at1 // MAC16 option
s32i \at1, \ptr, .Lxchal_ofs_+4
.set .Lxchal_ofs_, .Lxchal_ofs_ + 8
.elseif ((XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_CALR) & ~(\alloc)) == 0
xchal_sa_align \ptr, 0, 1016, 4, 4
.set .Lxchal_ofs_, .Lxchal_ofs_ + 8
.endif
// Optional caller-saved registers not used by default by the compiler:
.ifeq (XTHAL_SAS_OPT | XTHAL_SAS_NOCC | XTHAL_SAS_CALR) & ~(\select)
xchal_sa_align \ptr, 0, 1000, 4, 4
rsr.BR \at1 // boolean option
s32i \at1, \ptr, .Lxchal_ofs_+0
rsr.SCOMPARE1 \at1 // conditional store option
s32i \at1, \ptr, .Lxchal_ofs_+4
rsr.M0 \at1 // MAC16 option
s32i \at1, \ptr, .Lxchal_ofs_+8
rsr.M1 \at1 // MAC16 option
s32i \at1, \ptr, .Lxchal_ofs_+12
rsr.M2 \at1 // MAC16 option
s32i \at1, \ptr, .Lxchal_ofs_+16
rsr.M3 \at1 // MAC16 option
s32i \at1, \ptr, .Lxchal_ofs_+20
.set .Lxchal_ofs_, .Lxchal_ofs_ + 24
.elseif ((XTHAL_SAS_OPT | XTHAL_SAS_NOCC | XTHAL_SAS_CALR) & ~(\alloc)) == 0
xchal_sa_align \ptr, 0, 1000, 4, 4
.set .Lxchal_ofs_, .Lxchal_ofs_ + 24
.endif
.endm // xchal_ncp_store
/*
* Macro to load all non-coprocessor (extra) custom TIE and optional state
* (not including zero-overhead loop registers).
* Required parameters:
* ptr Save area pointer address register (clobbered)
* (register must contain a 4 byte aligned address).
* at1..at4 Four temporary address registers (first XCHAL_NCP_NUM_ATMPS
* registers are clobbered, the remaining are unused).
* Optional parameters:
* continue If macro invoked as part of a larger load sequence, set to 1
* if this is not the first in the sequence. Defaults to 0.
* ofs Offset from start of larger sequence (from value of first ptr
* in sequence) at which to load. Defaults to next available space
* (or 0 if <continue> is 0).
* select Select what category(ies) of registers to load, as a bitmask
* (see XTHAL_SAS_xxx constants). Defaults to all registers.
* alloc Select what category(ies) of registers to allocate; if any
* category is selected here that is not in <select>, space for
* the corresponding registers is skipped without doing any load.
*/
.macro xchal_ncp_load ptr at1 at2 at3 at4 continue=0 ofs=-1 select=XTHAL_SAS_ALL alloc=0
xchal_sa_start \continue, \ofs
// Optional global registers used by default by the compiler:
.ifeq (XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_GLOB) & ~(\select)
xchal_sa_align \ptr, 0, 1020, 4, 4
l32i \at1, \ptr, .Lxchal_ofs_+0
wur.THREADPTR \at1 // threadptr option
.set .Lxchal_ofs_, .Lxchal_ofs_ + 4
.elseif ((XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_GLOB) & ~(\alloc)) == 0
xchal_sa_align \ptr, 0, 1020, 4, 4
.set .Lxchal_ofs_, .Lxchal_ofs_ + 4
.endif
// Optional caller-saved registers used by default by the compiler:
.ifeq (XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_CALR) & ~(\select)
xchal_sa_align \ptr, 0, 1016, 4, 4
l32i \at1, \ptr, .Lxchal_ofs_+0
wsr.ACCLO \at1 // MAC16 option
l32i \at1, \ptr, .Lxchal_ofs_+4
wsr.ACCHI \at1 // MAC16 option
.set .Lxchal_ofs_, .Lxchal_ofs_ + 8
.elseif ((XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_CALR) & ~(\alloc)) == 0
xchal_sa_align \ptr, 0, 1016, 4, 4
.set .Lxchal_ofs_, .Lxchal_ofs_ + 8
.endif
// Optional caller-saved registers not used by default by the compiler:
.ifeq (XTHAL_SAS_OPT | XTHAL_SAS_NOCC | XTHAL_SAS_CALR) & ~(\select)
xchal_sa_align \ptr, 0, 1000, 4, 4
l32i \at1, \ptr, .Lxchal_ofs_+0
wsr.BR \at1 // boolean option
l32i \at1, \ptr, .Lxchal_ofs_+4
wsr.SCOMPARE1 \at1 // conditional store option
l32i \at1, \ptr, .Lxchal_ofs_+8
wsr.M0 \at1 // MAC16 option
l32i \at1, \ptr, .Lxchal_ofs_+12
wsr.M1 \at1 // MAC16 option
l32i \at1, \ptr, .Lxchal_ofs_+16
wsr.M2 \at1 // MAC16 option
l32i \at1, \ptr, .Lxchal_ofs_+20
wsr.M3 \at1 // MAC16 option
.set .Lxchal_ofs_, .Lxchal_ofs_ + 24
.elseif ((XTHAL_SAS_OPT | XTHAL_SAS_NOCC | XTHAL_SAS_CALR) & ~(\alloc)) == 0
xchal_sa_align \ptr, 0, 1000, 4, 4
.set .Lxchal_ofs_, .Lxchal_ofs_ + 24
.endif
.endm // xchal_ncp_load
#define XCHAL_NCP_NUM_ATMPS 1
#define XCHAL_SA_NUM_ATMPS 1
#endif /*_XTENSA_CORE_TIE_ASM_H*/
arch/xtensa/variants/csp/include/variant/tie.h 0 → 100644
浏览文件 @ d8ea757b
/*
* tie.h -- compile-time HAL definitions dependent on CORE & TIE configuration
*
* NOTE: This header file is not meant to be included directly.
*/
/* This header file describes this specific Xtensa processor's TIE extensions
that extend basic Xtensa core functionality. It is customized to this
Xtensa processor configuration.
Copyright (c) 1999-2015 Cadence Design Systems Inc.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
#ifndef _XTENSA_CORE_TIE_H
#define _XTENSA_CORE_TIE_H
#define XCHAL_CP_NUM 1 /* number of coprocessors */
#define XCHAL_CP_MAX 8 /* max CP ID + 1 (0 if none) */
#define XCHAL_CP_MASK 0x80 /* bitmask of all CPs by ID */
#define XCHAL_CP_PORT_MASK 0x80 /* bitmask of only port CPs */
/* Basic parameters of each coprocessor: */
#define XCHAL_CP7_NAME "XTIOP"
#define XCHAL_CP7_IDENT XTIOP
#define XCHAL_CP7_SA_SIZE 0 /* size of state save area */
#define XCHAL_CP7_SA_ALIGN 1 /* min alignment of save area */
#define XCHAL_CP_ID_XTIOP 7 /* coprocessor ID (0..7) */
/* Filler info for unassigned coprocessors, to simplify arrays etc: */
#define XCHAL_CP0_SA_SIZE 0
#define XCHAL_CP0_SA_ALIGN 1
#define XCHAL_CP1_SA_SIZE 0
#define XCHAL_CP1_SA_ALIGN 1
#define XCHAL_CP2_SA_SIZE 0
#define XCHAL_CP2_SA_ALIGN 1
#define XCHAL_CP3_SA_SIZE 0
#define XCHAL_CP3_SA_ALIGN 1
#define XCHAL_CP4_SA_SIZE 0
#define XCHAL_CP4_SA_ALIGN 1
#define XCHAL_CP5_SA_SIZE 0
#define XCHAL_CP5_SA_ALIGN 1
#define XCHAL_CP6_SA_SIZE 0
#define XCHAL_CP6_SA_ALIGN 1
/* Save area for non-coprocessor optional and custom (TIE) state: */
#define XCHAL_NCP_SA_SIZE 36
#define XCHAL_NCP_SA_ALIGN 4
/* Total save area for optional and custom state (NCP + CPn): */
#define XCHAL_TOTAL_SA_SIZE 48 /* with 16-byte align padding */
#define XCHAL_TOTAL_SA_ALIGN 4 /* actual minimum alignment */
/*
* Detailed contents of save areas.
* NOTE: caller must define the XCHAL_SA_REG macro (not defined here)
* before expanding the XCHAL_xxx_SA_LIST() macros.
*
* XCHAL_SA_REG(s,ccused,abikind,kind,opt,name,galign,align,asize,
* dbnum,base,regnum,bitsz,gapsz,reset,x...)
*
* s = passed from XCHAL_*_LIST(s), eg. to select how to expand
* ccused = set if used by compiler without special options or code
* abikind = 0 (caller-saved), 1 (callee-saved), or 2 (thread-global)
* kind = 0 (special reg), 1 (TIE user reg), or 2 (TIE regfile reg)
* opt = 0 (custom TIE extension or coprocessor), or 1 (optional reg)
* name = lowercase reg name (no quotes)
* galign = group byte alignment (power of 2) (galign >= align)
* align = register byte alignment (power of 2)
* asize = allocated size in bytes (asize*8 == bitsz + gapsz + padsz)
* (not including any pad bytes required to galign this or next reg)
* dbnum = unique target number f/debug (see <xtensa-libdb-macros.h>)
* base = reg shortname w/o index (or sr=special, ur=TIE user reg)
* regnum = reg index in regfile, or special/TIE-user reg number
* bitsz = number of significant bits (regfile width, or ur/sr mask bits)
* gapsz = intervening bits, if bitsz bits not stored contiguously
* (padsz = pad bits at end [TIE regfile] or at msbits [ur,sr] of asize)
* reset = register reset value (or 0 if undefined at reset)
* x = reserved for future use (0 until then)
*
* To filter out certain registers, e.g. to expand only the non-global
* registers used by the compiler, you can do something like this:
*
* #define XCHAL_SA_REG(s,ccused,p...) SELCC##ccused(p)
* #define SELCC0(p...)
* #define SELCC1(abikind,p...) SELAK##abikind(p)
* #define SELAK0(p...) REG(p)
* #define SELAK1(p...) REG(p)
* #define SELAK2(p...)
* #define REG(kind,tie,name,galn,aln,asz,csz,dbnum,base,rnum,bsz,rst,x...) \
* ...what you want to expand...
*/
#define XCHAL_NCP_SA_NUM 9
#define XCHAL_NCP_SA_LIST(s) \
XCHAL_SA_REG(s,1,2,1,1, threadptr, 4, 4, 4,0x03E7, ur,231, 32,0,0,0) \
XCHAL_SA_REG(s,1,0,0,1, acclo, 4, 4, 4,0x0210, sr,16 , 32,0,0,0) \
XCHAL_SA_REG(s,1,0,0,1, acchi, 4, 4, 4,0x0211, sr,17 , 8,0,0,0) \
XCHAL_SA_REG(s,0,0,0,1, br, 4, 4, 4,0x0204, sr,4 , 16,0,0,0) \
XCHAL_SA_REG(s,0,0,0,1, scompare1, 4, 4, 4,0x020C, sr,12 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,0,1, m0, 4, 4, 4,0x0220, sr,32 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,0,1, m1, 4, 4, 4,0x0221, sr,33 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,0,1, m2, 4, 4, 4,0x0222, sr,34 , 32,0,0,0) \
XCHAL_SA_REG(s,0,0,0,1, m3, 4, 4, 4,0x0223, sr,35 , 32,0,0,0)
#define XCHAL_CP0_SA_NUM 0
#define XCHAL_CP0_SA_LIST(s) /* empty */
#define XCHAL_CP1_SA_NUM 0
#define XCHAL_CP1_SA_LIST(s) /* empty */
#define XCHAL_CP2_SA_NUM 0
#define XCHAL_CP2_SA_LIST(s) /* empty */
#define XCHAL_CP3_SA_NUM 0
#define XCHAL_CP3_SA_LIST(s) /* empty */
#define XCHAL_CP4_SA_NUM 0
#define XCHAL_CP4_SA_LIST(s) /* empty */
#define XCHAL_CP5_SA_NUM 0
#define XCHAL_CP5_SA_LIST(s) /* empty */
#define XCHAL_CP6_SA_NUM 0
#define XCHAL_CP6_SA_LIST(s) /* empty */
#define XCHAL_CP7_SA_NUM 0
#define XCHAL_CP7_SA_LIST(s) /* empty */
/* Byte length of instruction from its first nibble (op0 field), per FLIX. */
#define XCHAL_OP0_FORMAT_LENGTHS 3,3,3,3,3,3,3,3,2,2,2,2,2,2,3,3
/* Byte length of instruction from its first byte, per FLIX. */
#define XCHAL_BYTE0_FORMAT_LENGTHS \
3,3,3,3,3,3,3,3,2,2,2,2,2,2,3,3, 3,3,3,3,3,3,3,3,2,2,2,2,2,2,3,3,\
3,3,3,3,3,3,3,3,2,2,2,2,2,2,3,3, 3,3,3,3,3,3,3,3,2,2,2,2,2,2,3,3,\
3,3,3,3,3,3,3,3,2,2,2,2,2,2,3,3, 3,3,3,3,3,3,3,3,2,2,2,2,2,2,3,3,\
3,3,3,3,3,3,3,3,2,2,2,2,2,2,3,3, 3,3,3,3,3,3,3,3,2,2,2,2,2,2,3,3,\
3,3,3,3,3,3,3,3,2,2,2,2,2,2,3,3, 3,3,3,3,3,3,3,3,2,2,2,2,2,2,3,3,\
3,3,3,3,3,3,3,3,2,2,2,2,2,2,3,3, 3,3,3,3,3,3,3,3,2,2,2,2,2,2,3,3,\
3,3,3,3,3,3,3,3,2,2,2,2,2,2,3,3, 3,3,3,3,3,3,3,3,2,2,2,2,2,2,3,3,\
3,3,3,3,3,3,3,3,2,2,2,2,2,2,3,3, 3,3,3,3,3,3,3,3,2,2,2,2,2,2,3,3
#endif /*_XTENSA_CORE_TIE_H*/
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