提交 e6944202 编写于 作者: L Linus Torvalds

Merge master.kernel.org:/home/rmk/linux-2.6-arm

* master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] 3762/1: Fix ptrace cache coherency bug for ARM1136 VIPT nonaliasing Harvard caches
  [ARM] 3765/1: S3C24XX: cleanup include/asm-arm/arch-s3c2410/dma.h
  [ARM] 3764/1: S3C24XX: change type naming to kernel style
  [ARM] 3763/1: add both rtcs to csb337 defconfig
  [ARM] Fix ARM __raw_read_trylock() implementation
  [ARM] 3750/3: Fix double VFP emulation for EABI kernels
......@@ -621,9 +621,8 @@ CONFIG_AT91_WATCHDOG=y
# USB-based Watchdog Cards
#
# CONFIG_USBPCWATCHDOG is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_NVRAM is not set
CONFIG_RTC=y
# CONFIG_AT91_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
......@@ -956,9 +955,41 @@ CONFIG_USB_AT91=y
CONFIG_MMC=y
# CONFIG_MMC_DEBUG is not set
CONFIG_MMC_BLOCK=y
# CONFIG_MMC_WBSD is not set
CONFIG_MMC_AT91RM9200=y
#
# Real Time Clock
#
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc1"
#
# RTC interfaces
#
# CONFIG_RTC_INTF_SYSFS is not set
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
#
# RTC drivers
#
# CONFIG_RTC_DRV_X1205 is not set
CONFIG_RTC_DRV_DS1307=y
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_M48T86 is not set
CONFIG_RTC_DRV_AT91=y
# CONFIG_RTC_DRV_TEST is not set
# CONFIG_RTC_DRV_V3020 is not set
#
# File systems
#
......
......@@ -60,7 +60,7 @@ static void __iomem *dma_base;
static kmem_cache_t *dma_kmem;
/* dma channel state information */
s3c2410_dma_chan_t s3c2410_chans[S3C2410_DMA_CHANNELS];
struct s3c2410_dma_chan s3c2410_chans[S3C2410_DMA_CHANNELS];
/* debugging functions */
......@@ -74,7 +74,7 @@ s3c2410_dma_chan_t s3c2410_chans[S3C2410_DMA_CHANNELS];
#define dma_wrreg(chan, reg, val) writel((val), (chan)->regs + (reg))
#else
static inline void
dma_wrreg(s3c2410_dma_chan_t *chan, int reg, unsigned long val)
dma_wrreg(struct s3c2410_dma_chan *chan, int reg, unsigned long val)
{
pr_debug("writing %08x to register %08x\n",(unsigned int)val,reg);
writel(val, dma_regaddr(chan, reg));
......@@ -102,7 +102,7 @@ struct s3c2410_dma_regstate {
*/
static void
dmadbg_capture(s3c2410_dma_chan_t *chan, struct s3c2410_dma_regstate *regs)
dmadbg_capture(struct s3c2410_dma_chan *chan, struct s3c2410_dma_regstate *regs)
{
regs->dcsrc = dma_rdreg(chan, S3C2410_DMA_DCSRC);
regs->disrc = dma_rdreg(chan, S3C2410_DMA_DISRC);
......@@ -112,7 +112,7 @@ dmadbg_capture(s3c2410_dma_chan_t *chan, struct s3c2410_dma_regstate *regs)
}
static void
dmadbg_dumpregs(const char *fname, int line, s3c2410_dma_chan_t *chan,
dmadbg_dumpregs(const char *fname, int line, struct s3c2410_dma_chan *chan,
struct s3c2410_dma_regstate *regs)
{
printk(KERN_DEBUG "dma%d: %s:%d: DCSRC=%08lx, DISRC=%08lx, DSTAT=%08lx DMT=%02lx, DCON=%08lx\n",
......@@ -122,7 +122,7 @@ dmadbg_dumpregs(const char *fname, int line, s3c2410_dma_chan_t *chan,
}
static void
dmadbg_showchan(const char *fname, int line, s3c2410_dma_chan_t *chan)
dmadbg_showchan(const char *fname, int line, struct s3c2410_dma_chan *chan)
{
struct s3c2410_dma_regstate state;
......@@ -136,7 +136,7 @@ dmadbg_showchan(const char *fname, int line, s3c2410_dma_chan_t *chan)
}
static void
dmadbg_showregs(const char *fname, int line, s3c2410_dma_chan_t *chan)
dmadbg_showregs(const char *fname, int line, struct s3c2410_dma_chan *chan)
{
struct s3c2410_dma_regstate state;
......@@ -164,7 +164,7 @@ dmadbg_showregs(const char *fname, int line, s3c2410_dma_chan_t *chan)
*/
static void
s3c2410_dma_stats_timeout(s3c2410_dma_stats_t *stats, int val)
s3c2410_dma_stats_timeout(struct s3c2410_dma_stats *stats, int val)
{
if (stats == NULL)
return;
......@@ -183,7 +183,7 @@ s3c2410_dma_stats_timeout(s3c2410_dma_stats_t *stats, int val)
*/
static int
s3c2410_dma_waitforload(s3c2410_dma_chan_t *chan, int line)
s3c2410_dma_waitforload(struct s3c2410_dma_chan *chan, int line)
{
int timeout = chan->load_timeout;
int took;
......@@ -230,8 +230,8 @@ s3c2410_dma_waitforload(s3c2410_dma_chan_t *chan, int line)
*/
static inline int
s3c2410_dma_loadbuffer(s3c2410_dma_chan_t *chan,
s3c2410_dma_buf_t *buf)
s3c2410_dma_loadbuffer(struct s3c2410_dma_chan *chan,
struct s3c2410_dma_buf *buf)
{
unsigned long reload;
......@@ -304,7 +304,7 @@ s3c2410_dma_loadbuffer(s3c2410_dma_chan_t *chan,
*/
static void
s3c2410_dma_call_op(s3c2410_dma_chan_t *chan, s3c2410_chan_op_t op)
s3c2410_dma_call_op(struct s3c2410_dma_chan *chan, enum s3c2410_chan_op op)
{
if (chan->op_fn != NULL) {
(chan->op_fn)(chan, op);
......@@ -318,8 +318,8 @@ s3c2410_dma_call_op(s3c2410_dma_chan_t *chan, s3c2410_chan_op_t op)
*/
static inline void
s3c2410_dma_buffdone(s3c2410_dma_chan_t *chan, s3c2410_dma_buf_t *buf,
s3c2410_dma_buffresult_t result)
s3c2410_dma_buffdone(struct s3c2410_dma_chan *chan, struct s3c2410_dma_buf *buf,
enum s3c2410_dma_buffresult result)
{
pr_debug("callback_fn=%p, buf=%p, id=%p, size=%d, result=%d\n",
chan->callback_fn, buf, buf->id, buf->size, result);
......@@ -334,7 +334,7 @@ s3c2410_dma_buffdone(s3c2410_dma_chan_t *chan, s3c2410_dma_buf_t *buf,
* start a dma channel going
*/
static int s3c2410_dma_start(s3c2410_dma_chan_t *chan)
static int s3c2410_dma_start(struct s3c2410_dma_chan *chan)
{
unsigned long tmp;
unsigned long flags;
......@@ -430,7 +430,7 @@ static int s3c2410_dma_start(s3c2410_dma_chan_t *chan)
*/
static int
s3c2410_dma_canload(s3c2410_dma_chan_t *chan)
s3c2410_dma_canload(struct s3c2410_dma_chan *chan)
{
if (chan->load_state == S3C2410_DMALOAD_NONE ||
chan->load_state == S3C2410_DMALOAD_1RUNNING)
......@@ -460,8 +460,8 @@ s3c2410_dma_canload(s3c2410_dma_chan_t *chan)
int s3c2410_dma_enqueue(unsigned int channel, void *id,
dma_addr_t data, int size)
{
s3c2410_dma_chan_t *chan = &s3c2410_chans[channel];
s3c2410_dma_buf_t *buf;
struct s3c2410_dma_chan *chan = &s3c2410_chans[channel];
struct s3c2410_dma_buf *buf;
unsigned long flags;
check_channel(channel);
......@@ -540,7 +540,7 @@ int s3c2410_dma_enqueue(unsigned int channel, void *id,
EXPORT_SYMBOL(s3c2410_dma_enqueue);
static inline void
s3c2410_dma_freebuf(s3c2410_dma_buf_t *buf)
s3c2410_dma_freebuf(struct s3c2410_dma_buf *buf)
{
int magicok = (buf->magic == BUF_MAGIC);
......@@ -560,7 +560,7 @@ s3c2410_dma_freebuf(s3c2410_dma_buf_t *buf)
*/
static inline void
s3c2410_dma_lastxfer(s3c2410_dma_chan_t *chan)
s3c2410_dma_lastxfer(struct s3c2410_dma_chan *chan)
{
pr_debug("dma%d: s3c2410_dma_lastxfer: load_state %d\n",
chan->number, chan->load_state);
......@@ -601,8 +601,8 @@ s3c2410_dma_lastxfer(s3c2410_dma_chan_t *chan)
static irqreturn_t
s3c2410_dma_irq(int irq, void *devpw, struct pt_regs *regs)
{
s3c2410_dma_chan_t *chan = (s3c2410_dma_chan_t *)devpw;
s3c2410_dma_buf_t *buf;
struct s3c2410_dma_chan *chan = (struct s3c2410_dma_chan *)devpw;
struct s3c2410_dma_buf *buf;
buf = chan->curr;
......@@ -731,10 +731,10 @@ s3c2410_dma_irq(int irq, void *devpw, struct pt_regs *regs)
* get control of an dma channel
*/
int s3c2410_dma_request(unsigned int channel, s3c2410_dma_client_t *client,
int s3c2410_dma_request(unsigned int channel, struct s3c2410_dma_client *client,
void *dev)
{
s3c2410_dma_chan_t *chan = &s3c2410_chans[channel];
struct s3c2410_dma_chan *chan = &s3c2410_chans[channel];
unsigned long flags;
int err;
......@@ -807,9 +807,9 @@ EXPORT_SYMBOL(s3c2410_dma_request);
* allowed to go through.
*/
int s3c2410_dma_free(dmach_t channel, s3c2410_dma_client_t *client)
int s3c2410_dma_free(dmach_t channel, struct s3c2410_dma_client *client)
{
s3c2410_dma_chan_t *chan = &s3c2410_chans[channel];
struct s3c2410_dma_chan *chan = &s3c2410_chans[channel];
unsigned long flags;
check_channel(channel);
......@@ -846,7 +846,7 @@ int s3c2410_dma_free(dmach_t channel, s3c2410_dma_client_t *client)
EXPORT_SYMBOL(s3c2410_dma_free);
static int s3c2410_dma_dostop(s3c2410_dma_chan_t *chan)
static int s3c2410_dma_dostop(struct s3c2410_dma_chan *chan)
{
unsigned long tmp;
unsigned long flags;
......@@ -880,7 +880,7 @@ static int s3c2410_dma_dostop(s3c2410_dma_chan_t *chan)
return 0;
}
void s3c2410_dma_waitforstop(s3c2410_dma_chan_t *chan)
void s3c2410_dma_waitforstop(struct s3c2410_dma_chan *chan)
{
unsigned long tmp;
unsigned int timeout = 0x10000;
......@@ -901,9 +901,9 @@ void s3c2410_dma_waitforstop(s3c2410_dma_chan_t *chan)
* stop the channel, and remove all current and pending transfers
*/
static int s3c2410_dma_flush(s3c2410_dma_chan_t *chan)
static int s3c2410_dma_flush(struct s3c2410_dma_chan *chan)
{
s3c2410_dma_buf_t *buf, *next;
struct s3c2410_dma_buf *buf, *next;
unsigned long flags;
pr_debug("%s: chan %p (%d)\n", __FUNCTION__, chan, chan->number);
......@@ -958,7 +958,7 @@ static int s3c2410_dma_flush(s3c2410_dma_chan_t *chan)
}
int
s3c2410_dma_started(s3c2410_dma_chan_t *chan)
s3c2410_dma_started(struct s3c2410_dma_chan *chan)
{
unsigned long flags;
......@@ -995,9 +995,9 @@ s3c2410_dma_started(s3c2410_dma_chan_t *chan)
}
int
s3c2410_dma_ctrl(dmach_t channel, s3c2410_chan_op_t op)
s3c2410_dma_ctrl(dmach_t channel, enum s3c2410_chan_op op)
{
s3c2410_dma_chan_t *chan = &s3c2410_chans[channel];
struct s3c2410_dma_chan *chan = &s3c2410_chans[channel];
check_channel(channel);
......@@ -1046,7 +1046,7 @@ int s3c2410_dma_config(dmach_t channel,
int xferunit,
int dcon)
{
s3c2410_dma_chan_t *chan = &s3c2410_chans[channel];
struct s3c2410_dma_chan *chan = &s3c2410_chans[channel];
pr_debug("%s: chan=%d, xfer_unit=%d, dcon=%08x\n",
__FUNCTION__, channel, xferunit, dcon);
......@@ -1086,7 +1086,7 @@ EXPORT_SYMBOL(s3c2410_dma_config);
int s3c2410_dma_setflags(dmach_t channel, unsigned int flags)
{
s3c2410_dma_chan_t *chan = &s3c2410_chans[channel];
struct s3c2410_dma_chan *chan = &s3c2410_chans[channel];
check_channel(channel);
......@@ -1106,7 +1106,7 @@ EXPORT_SYMBOL(s3c2410_dma_setflags);
int s3c2410_dma_set_opfn(dmach_t channel, s3c2410_dma_opfn_t rtn)
{
s3c2410_dma_chan_t *chan = &s3c2410_chans[channel];
struct s3c2410_dma_chan *chan = &s3c2410_chans[channel];
check_channel(channel);
......@@ -1121,7 +1121,7 @@ EXPORT_SYMBOL(s3c2410_dma_set_opfn);
int s3c2410_dma_set_buffdone_fn(dmach_t channel, s3c2410_dma_cbfn_t rtn)
{
s3c2410_dma_chan_t *chan = &s3c2410_chans[channel];
struct s3c2410_dma_chan *chan = &s3c2410_chans[channel];
check_channel(channel);
......@@ -1149,11 +1149,11 @@ EXPORT_SYMBOL(s3c2410_dma_set_buffdone_fn);
*/
int s3c2410_dma_devconfig(int channel,
s3c2410_dmasrc_t source,
enum s3c2410_dmasrc source,
int hwcfg,
unsigned long devaddr)
{
s3c2410_dma_chan_t *chan = &s3c2410_chans[channel];
struct s3c2410_dma_chan *chan = &s3c2410_chans[channel];
check_channel(channel);
......@@ -1200,7 +1200,7 @@ EXPORT_SYMBOL(s3c2410_dma_devconfig);
int s3c2410_dma_getposition(dmach_t channel, dma_addr_t *src, dma_addr_t *dst)
{
s3c2410_dma_chan_t *chan = &s3c2410_chans[channel];
struct s3c2410_dma_chan *chan = &s3c2410_chans[channel];
check_channel(channel);
......@@ -1222,7 +1222,7 @@ EXPORT_SYMBOL(s3c2410_dma_getposition);
static int s3c2410_dma_suspend(struct sys_device *dev, pm_message_t state)
{
s3c2410_dma_chan_t *cp = container_of(dev, s3c2410_dma_chan_t, dev);
struct s3c2410_dma_chan *cp = container_of(dev, struct s3c2410_dma_chan, dev);
printk(KERN_DEBUG "suspending dma channel %d\n", cp->number);
......@@ -1262,7 +1262,7 @@ static struct sysdev_class dma_sysclass = {
static void s3c2410_dma_cache_ctor(void *p, kmem_cache_t *c, unsigned long f)
{
memset(p, 0, sizeof(s3c2410_dma_buf_t));
memset(p, 0, sizeof(struct s3c2410_dma_buf));
}
......@@ -1270,7 +1270,7 @@ static void s3c2410_dma_cache_ctor(void *p, kmem_cache_t *c, unsigned long f)
static int __init s3c2410_init_dma(void)
{
s3c2410_dma_chan_t *cp;
struct s3c2410_dma_chan *cp;
int channel;
int ret;
......@@ -1288,7 +1288,7 @@ static int __init s3c2410_init_dma(void)
goto err;
}
dma_kmem = kmem_cache_create("dma_desc", sizeof(s3c2410_dma_buf_t), 0,
dma_kmem = kmem_cache_create("dma_desc", sizeof(struct s3c2410_dma_buf), 0,
SLAB_HWCACHE_ALIGN,
s3c2410_dma_cache_ctor, NULL);
......@@ -1301,7 +1301,7 @@ static int __init s3c2410_init_dma(void)
for (channel = 0; channel < S3C2410_DMA_CHANNELS; channel++) {
cp = &s3c2410_chans[channel];
memset(cp, 0, sizeof(s3c2410_dma_chan_t));
memset(cp, 0, sizeof(struct s3c2410_dma_chan));
/* dma channel irqs are in order.. */
cp->number = channel;
......
......@@ -87,6 +87,32 @@ void flush_cache_page(struct vm_area_struct *vma, unsigned long user_addr, unsig
if (cache_is_vipt_aliasing())
flush_pfn_alias(pfn, user_addr);
}
void flush_ptrace_access(struct vm_area_struct *vma, struct page *page,
unsigned long uaddr, void *kaddr,
unsigned long len, int write)
{
if (cache_is_vivt()) {
if (cpu_isset(smp_processor_id(), vma->vm_mm->cpu_vm_mask)) {
unsigned long addr = (unsigned long)kaddr;
__cpuc_coherent_kern_range(addr, addr + len);
}
return;
}
if (cache_is_vipt_aliasing()) {
flush_pfn_alias(page_to_pfn(page), uaddr);
return;
}
/* VIPT non-aliasing cache */
if (cpu_isset(smp_processor_id(), vma->vm_mm->cpu_vm_mask) &&
vma->vm_flags | VM_EXEC) {
unsigned long addr = (unsigned long)kaddr;
/* only flushing the kernel mapping on non-aliasing VIPT */
__cpuc_coherent_kern_range(addr, addr + len);
}
}
#else
#define flush_pfn_alias(pfn,vaddr) do { } while (0)
#endif
......
......@@ -156,7 +156,7 @@ struct vfp_single {
};
extern s32 vfp_get_float(unsigned int reg);
extern void vfp_put_float(unsigned int reg, s32 val);
extern void vfp_put_float(s32 val, unsigned int reg);
/*
* VFP_SINGLE_MANTISSA_BITS - number of bits in the mantissa
......@@ -267,7 +267,7 @@ struct vfp_double {
*/
#define VFP_REG_ZERO 16
extern u64 vfp_get_double(unsigned int reg);
extern void vfp_put_double(unsigned int reg, u64 val);
extern void vfp_put_double(u64 val, unsigned int reg);
#define VFP_DOUBLE_MANTISSA_BITS (52)
#define VFP_DOUBLE_EXPONENT_BITS (11)
......@@ -341,12 +341,6 @@ static inline int vfp_double_type(struct vfp_double *s)
u32 vfp_double_normaliseround(int dd, struct vfp_double *vd, u32 fpscr, u32 exceptions, const char *func);
/*
* System registers
*/
extern u32 vfp_get_sys(unsigned int reg);
extern void vfp_put_sys(unsigned int reg, u32 val);
u32 vfp_estimate_sqrt_significand(u32 exponent, u32 significand);
/*
......
......@@ -195,7 +195,7 @@ u32 vfp_double_normaliseround(int dd, struct vfp_double *vd, u32 fpscr, u32 exce
s64 d = vfp_double_pack(vd);
pr_debug("VFP: %s: d(d%d)=%016llx exceptions=%08x\n", func,
dd, d, exceptions);
vfp_put_double(dd, d);
vfp_put_double(d, dd);
}
return exceptions;
}
......@@ -250,19 +250,19 @@ vfp_propagate_nan(struct vfp_double *vdd, struct vfp_double *vdn,
*/
static u32 vfp_double_fabs(int dd, int unused, int dm, u32 fpscr)
{
vfp_put_double(dd, vfp_double_packed_abs(vfp_get_double(dm)));
vfp_put_double(vfp_double_packed_abs(vfp_get_double(dm)), dd);
return 0;
}
static u32 vfp_double_fcpy(int dd, int unused, int dm, u32 fpscr)
{
vfp_put_double(dd, vfp_get_double(dm));
vfp_put_double(vfp_get_double(dm), dd);
return 0;
}
static u32 vfp_double_fneg(int dd, int unused, int dm, u32 fpscr)
{
vfp_put_double(dd, vfp_double_packed_negate(vfp_get_double(dm)));
vfp_put_double(vfp_double_packed_negate(vfp_get_double(dm)), dd);
return 0;
}
......@@ -287,7 +287,7 @@ static u32 vfp_double_fsqrt(int dd, int unused, int dm, u32 fpscr)
vdp = &vfp_double_default_qnan;
ret = FPSCR_IOC;
}
vfp_put_double(dd, vfp_double_pack(vdp));
vfp_put_double(vfp_double_pack(vdp), dd);
return ret;
}
......@@ -476,7 +476,7 @@ static u32 vfp_double_fcvts(int sd, int unused, int dm, u32 fpscr)
return vfp_single_normaliseround(sd, &vsd, fpscr, exceptions, "fcvts");
pack_nan:
vfp_put_float(sd, vfp_single_pack(&vsd));
vfp_put_float(vfp_single_pack(&vsd), sd);
return exceptions;
}
......@@ -573,7 +573,7 @@ static u32 vfp_double_ftoui(int sd, int unused, int dm, u32 fpscr)
pr_debug("VFP: ftoui: d(s%d)=%08x exceptions=%08x\n", sd, d, exceptions);
vfp_put_float(sd, d);
vfp_put_float(d, sd);
return exceptions;
}
......@@ -648,7 +648,7 @@ static u32 vfp_double_ftosi(int sd, int unused, int dm, u32 fpscr)
pr_debug("VFP: ftosi: d(s%d)=%08x exceptions=%08x\n", sd, d, exceptions);
vfp_put_float(sd, (s32)d);
vfp_put_float((s32)d, sd);
return exceptions;
}
......@@ -1084,7 +1084,7 @@ static u32 vfp_double_fdiv(int dd, int dn, int dm, u32 fpscr)
vdn_nan:
exceptions = vfp_propagate_nan(&vdd, &vdn, &vdm, fpscr);
pack:
vfp_put_double(dd, vfp_double_pack(&vdd));
vfp_put_double(vfp_double_pack(&vdd), dd);
return exceptions;
vdm_nan:
......@@ -1104,7 +1104,7 @@ static u32 vfp_double_fdiv(int dd, int dn, int dm, u32 fpscr)
goto pack;
invalid:
vfp_put_double(dd, vfp_double_pack(&vfp_double_default_qnan));
vfp_put_double(vfp_double_pack(&vfp_double_default_qnan), dd);
return FPSCR_IOC;
}
......
......@@ -178,12 +178,12 @@ vfp_get_float:
.globl vfp_put_float
vfp_put_float:
add pc, pc, r0, lsl #3
add pc, pc, r1, lsl #3
mov r0, r0
.irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
mcr p10, 0, r1, c\dr, c0, 0 @ fmsr r0, s0
mcr p10, 0, r0, c\dr, c0, 0 @ fmsr r0, s0
mov pc, lr
mcr p10, 0, r1, c\dr, c0, 4 @ fmsr r0, s1
mcr p10, 0, r0, c\dr, c0, 4 @ fmsr r0, s1
mov pc, lr
.endr
......@@ -203,9 +203,9 @@ vfp_get_double:
.globl vfp_put_double
vfp_put_double:
add pc, pc, r0, lsl #3
add pc, pc, r2, lsl #3
mov r0, r0
.irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
fmdrr d\dr, r1, r2
fmdrr d\dr, r0, r1
mov pc, lr
.endr
......@@ -200,7 +200,7 @@ u32 vfp_single_normaliseround(int sd, struct vfp_single *vs, u32 fpscr, u32 exce
s32 d = vfp_single_pack(vs);
pr_debug("VFP: %s: d(s%d)=%08x exceptions=%08x\n", func,
sd, d, exceptions);
vfp_put_float(sd, d);
vfp_put_float(d, sd);
}
return exceptions;
......@@ -257,19 +257,19 @@ vfp_propagate_nan(struct vfp_single *vsd, struct vfp_single *vsn,
*/
static u32 vfp_single_fabs(int sd, int unused, s32 m, u32 fpscr)
{
vfp_put_float(sd, vfp_single_packed_abs(m));
vfp_put_float(vfp_single_packed_abs(m), sd);
return 0;
}
static u32 vfp_single_fcpy(int sd, int unused, s32 m, u32 fpscr)
{
vfp_put_float(sd, m);
vfp_put_float(m, sd);
return 0;
}
static u32 vfp_single_fneg(int sd, int unused, s32 m, u32 fpscr)
{
vfp_put_float(sd, vfp_single_packed_negate(m));
vfp_put_float(vfp_single_packed_negate(m), sd);
return 0;
}
......@@ -333,7 +333,7 @@ static u32 vfp_single_fsqrt(int sd, int unused, s32 m, u32 fpscr)
vsp = &vfp_single_default_qnan;
ret = FPSCR_IOC;
}
vfp_put_float(sd, vfp_single_pack(vsp));
vfp_put_float(vfp_single_pack(vsp), sd);
return ret;
}
......@@ -517,7 +517,7 @@ static u32 vfp_single_fcvtd(int dd, int unused, s32 m, u32 fpscr)
return vfp_double_normaliseround(dd, &vdd, fpscr, exceptions, "fcvtd");
pack_nan:
vfp_put_double(dd, vfp_double_pack(&vdd));
vfp_put_double(vfp_double_pack(&vdd), dd);
return exceptions;
}
......@@ -613,7 +613,7 @@ static u32 vfp_single_ftoui(int sd, int unused, s32 m, u32 fpscr)
pr_debug("VFP: ftoui: d(s%d)=%08x exceptions=%08x\n", sd, d, exceptions);
vfp_put_float(sd, d);
vfp_put_float(d, sd);
return exceptions;
}
......@@ -692,7 +692,7 @@ static u32 vfp_single_ftosi(int sd, int unused, s32 m, u32 fpscr)
pr_debug("VFP: ftosi: d(s%d)=%08x exceptions=%08x\n", sd, d, exceptions);
vfp_put_float(sd, (s32)d);
vfp_put_float((s32)d, sd);
return exceptions;
}
......@@ -1127,7 +1127,7 @@ static u32 vfp_single_fdiv(int sd, int sn, s32 m, u32 fpscr)
vsn_nan:
exceptions = vfp_propagate_nan(&vsd, &vsn, &vsm, fpscr);
pack:
vfp_put_float(sd, vfp_single_pack(&vsd));
vfp_put_float(vfp_single_pack(&vsd), sd);
return exceptions;
vsm_nan:
......@@ -1147,7 +1147,7 @@ static u32 vfp_single_fdiv(int sd, int sn, s32 m, u32 fpscr)
goto pack;
invalid:
vfp_put_float(sd, vfp_single_pack(&vfp_single_default_qnan));
vfp_put_float(vfp_single_pack(&vfp_single_default_qnan), sd);
return FPSCR_IOC;
}
......
/* linux/include/asm-arm/arch-bast/dma.h
/* linux/include/asm-arm/arch-s3c2410/dma.h
*
* Copyright (C) 2003,2004 Simtec Electronics
* Copyright (C) 2003,2004,2006 Simtec Electronics
* Ben Dooks <ben@simtec.co.uk>
*
* Samsung S3C2410X DMA support
* Samsung S3C241XX DMA support
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Changelog:
* ??-May-2003 BJD Created file
* ??-Jun-2003 BJD Added more dma functionality to go with arch
* 10-Nov-2004 BJD Added sys_device support
*/
#ifndef __ASM_ARCH_DMA_H
......@@ -21,28 +16,26 @@
#include <linux/sysdev.h>
#include "hardware.h"
/*
* This is the maximum DMA address(physical address) that can be DMAd to.
*
*/
#define MAX_DMA_ADDRESS 0x20000000
#define MAX_DMA_ADDRESS 0x40000000
#define MAX_DMA_TRANSFER_SIZE 0x100000 /* Data Unit is half word */
/* we have 4 dma channels */
#define S3C2410_DMA_CHANNELS (4)
/* types */
typedef enum {
enum s3c2410_dma_state {
S3C2410_DMA_IDLE,
S3C2410_DMA_RUNNING,
S3C2410_DMA_PAUSED
} s3c2410_dma_state_t;
};
/* s3c2410_dma_loadst_t
/* enum s3c2410_dma_loadst
*
* This represents the state of the DMA engine, wrt to the loaded / running
* transfers. Since we don't have any way of knowing exactly the state of
......@@ -70,45 +63,40 @@ typedef enum {
* currently running.
*/
typedef enum {
enum s3c2410_dma_loadst {
S3C2410_DMALOAD_NONE,
S3C2410_DMALOAD_1LOADED,
S3C2410_DMALOAD_1RUNNING,
S3C2410_DMALOAD_1LOADED_1RUNNING,
} s3c2410_dma_loadst_t;
};
typedef enum {
enum s3c2410_dma_buffresult {
S3C2410_RES_OK,
S3C2410_RES_ERR,
S3C2410_RES_ABORT
} s3c2410_dma_buffresult_t;
typedef enum s3c2410_dmasrc_e s3c2410_dmasrc_t;
};
enum s3c2410_dmasrc_e {
S3C2410_DMASRC_HW, /* source is memory */
S3C2410_DMASRC_MEM /* source is hardware */
enum s3c2410_dmasrc {
S3C2410_DMASRC_HW, /* source is memory */
S3C2410_DMASRC_MEM /* source is hardware */
};
/* enum s3c2410_chan_op_e
/* enum s3c2410_chan_op
*
* operation codes passed to the DMA code by the user, and also used
* to inform the current channel owner of any changes to the system state
*/
enum s3c2410_chan_op_e {
enum s3c2410_chan_op {
S3C2410_DMAOP_START,
S3C2410_DMAOP_STOP,
S3C2410_DMAOP_PAUSE,
S3C2410_DMAOP_RESUME,
S3C2410_DMAOP_FLUSH,
S3C2410_DMAOP_TIMEOUT, /* internal signal to handler */
S3C2410_DMAOP_TIMEOUT, /* internal signal to handler */
S3C2410_DMAOP_STARTED, /* indicate channel started */
};
typedef enum s3c2410_chan_op_e s3c2410_chan_op_t;
/* flags */
#define S3C2410_DMAF_SLOW (1<<0) /* slow, so don't worry about
......@@ -117,104 +105,100 @@ typedef enum s3c2410_chan_op_e s3c2410_chan_op_t;
/* dma buffer */
typedef struct s3c2410_dma_buf_s s3c2410_dma_buf_t;
struct s3c2410_dma_client {
char *name;
};
typedef struct s3c2410_dma_client s3c2410_dma_client_t;
/* s3c2410_dma_buf_s
*
* internally used buffer structure to describe a queued or running
* buffer.
*/
struct s3c2410_dma_buf_s {
s3c2410_dma_buf_t *next;
int magic; /* magic */
int size; /* buffer size in bytes */
dma_addr_t data; /* start of DMA data */
dma_addr_t ptr; /* where the DMA got to [1] */
void *id; /* client's id */
struct s3c2410_dma_buf;
struct s3c2410_dma_buf {
struct s3c2410_dma_buf *next;
int magic; /* magic */
int size; /* buffer size in bytes */
dma_addr_t data; /* start of DMA data */
dma_addr_t ptr; /* where the DMA got to [1] */
void *id; /* client's id */
};
/* [1] is this updated for both recv/send modes? */
typedef struct s3c2410_dma_chan_s s3c2410_dma_chan_t;
struct s3c2410_dma_chan;
/* s3c2410_dma_cbfn_t
*
* buffer callback routine type
*/
typedef void (*s3c2410_dma_cbfn_t)(s3c2410_dma_chan_t *, void *buf, int size,
s3c2410_dma_buffresult_t result);
typedef void (*s3c2410_dma_cbfn_t)(struct s3c2410_dma_chan *,
void *buf, int size,
enum s3c2410_dma_buffresult result);
typedef int (*s3c2410_dma_opfn_t)(s3c2410_dma_chan_t *,
s3c2410_chan_op_t );
typedef int (*s3c2410_dma_opfn_t)(struct s3c2410_dma_chan *,
enum s3c2410_chan_op );
struct s3c2410_dma_stats_s {
unsigned long loads;
unsigned long timeout_longest;
unsigned long timeout_shortest;
unsigned long timeout_avg;
unsigned long timeout_failed;
struct s3c2410_dma_stats {
unsigned long loads;
unsigned long timeout_longest;
unsigned long timeout_shortest;
unsigned long timeout_avg;
unsigned long timeout_failed;
};
typedef struct s3c2410_dma_stats_s s3c2410_dma_stats_t;
/* struct s3c2410_dma_chan_s
/* struct s3c2410_dma_chan
*
* full state information for each DMA channel
*/
struct s3c2410_dma_chan_s {
struct s3c2410_dma_chan {
/* channel state flags and information */
unsigned char number; /* number of this dma channel */
unsigned char in_use; /* channel allocated */
unsigned char irq_claimed; /* irq claimed for channel */
unsigned char irq_enabled; /* irq enabled for channel */
unsigned char xfer_unit; /* size of an transfer */
unsigned char number; /* number of this dma channel */
unsigned char in_use; /* channel allocated */
unsigned char irq_claimed; /* irq claimed for channel */
unsigned char irq_enabled; /* irq enabled for channel */
unsigned char xfer_unit; /* size of an transfer */
/* channel state */
s3c2410_dma_state_t state;
s3c2410_dma_loadst_t load_state;
s3c2410_dma_client_t *client;
enum s3c2410_dma_state state;
enum s3c2410_dma_loadst load_state;
struct s3c2410_dma_client *client;
/* channel configuration */
s3c2410_dmasrc_t source;
unsigned long dev_addr;
unsigned long load_timeout;
unsigned int flags; /* channel flags */
enum s3c2410_dmasrc source;
unsigned long dev_addr;
unsigned long load_timeout;
unsigned int flags; /* channel flags */
/* channel's hardware position and configuration */
void __iomem *regs; /* channels registers */
void __iomem *addr_reg; /* data address register */
unsigned int irq; /* channel irq */
unsigned long dcon; /* default value of DCON */
void __iomem *regs; /* channels registers */
void __iomem *addr_reg; /* data address register */
unsigned int irq; /* channel irq */
unsigned long dcon; /* default value of DCON */
/* driver handles */
s3c2410_dma_cbfn_t callback_fn; /* buffer done callback */
s3c2410_dma_opfn_t op_fn; /* channel operation callback */
s3c2410_dma_cbfn_t callback_fn; /* buffer done callback */
s3c2410_dma_opfn_t op_fn; /* channel op callback */
/* stats gathering */
s3c2410_dma_stats_t *stats;
s3c2410_dma_stats_t stats_store;
struct s3c2410_dma_stats *stats;
struct s3c2410_dma_stats stats_store;
/* buffer list and information */
s3c2410_dma_buf_t *curr; /* current dma buffer */
s3c2410_dma_buf_t *next; /* next buffer to load */
s3c2410_dma_buf_t *end; /* end of queue */
struct s3c2410_dma_buf *curr; /* current dma buffer */
struct s3c2410_dma_buf *next; /* next buffer to load */
struct s3c2410_dma_buf *end; /* end of queue */
/* system device */
struct sys_device dev;
};
/* the currently allocated channel information */
extern s3c2410_dma_chan_t s3c2410_chans[];
extern struct s3c2410_dma_chan s3c2410_chans[];
/* note, we don't really use dma_device_t at the moment */
typedef unsigned long dma_device_t;
......@@ -227,7 +211,7 @@ typedef unsigned long dma_device_t;
*/
extern int s3c2410_dma_request(dmach_t channel,
s3c2410_dma_client_t *, void *dev);
struct s3c2410_dma_client *, void *dev);
/* s3c2410_dma_ctrl
......@@ -235,7 +219,7 @@ extern int s3c2410_dma_request(dmach_t channel,
* change the state of the dma channel
*/
extern int s3c2410_dma_ctrl(dmach_t channel, s3c2410_chan_op_t op);
extern int s3c2410_dma_ctrl(dmach_t channel, enum s3c2410_chan_op op);
/* s3c2410_dma_setflags
*
......@@ -250,7 +234,7 @@ extern int s3c2410_dma_setflags(dmach_t channel,
* free the dma channel (will also abort any outstanding operations)
*/
extern int s3c2410_dma_free(dmach_t channel, s3c2410_dma_client_t *);
extern int s3c2410_dma_free(dmach_t channel, struct s3c2410_dma_client *);
/* s3c2410_dma_enqueue
*
......@@ -274,7 +258,7 @@ extern int s3c2410_dma_config(dmach_t channel, int xferunit, int dcon);
* configure the device we're talking to
*/
extern int s3c2410_dma_devconfig(int channel, s3c2410_dmasrc_t source,
extern int s3c2410_dma_devconfig(int channel, enum s3c2410_dmasrc source,
int hwcfg, unsigned long devaddr);
/* s3c2410_dma_getposition
......
......@@ -247,14 +247,12 @@ extern void dmac_flush_range(unsigned long, unsigned long);
*/
#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
do { \
flush_cache_page(vma, vaddr, page_to_pfn(page));\
memcpy(dst, src, len); \
flush_dcache_page(page); \
flush_ptrace_access(vma, page, vaddr, dst, len, 1);\
} while (0)
#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
do { \
flush_cache_page(vma, vaddr, page_to_pfn(page));\
memcpy(dst, src, len); \
} while (0)
......@@ -285,10 +283,24 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long user_addr, unsigned l
__cpuc_flush_user_range(addr, addr + PAGE_SIZE, vma->vm_flags);
}
}
static inline void
flush_ptrace_access(struct vm_area_struct *vma, struct page *page,
unsigned long uaddr, void *kaddr,
unsigned long len, int write)
{
if (cpu_isset(smp_processor_id(), vma->vm_mm->cpu_vm_mask)) {
unsigned long addr = (unsigned long)kaddr;
__cpuc_coherent_kern_range(addr, addr + len);
}
}
#else
extern void flush_cache_mm(struct mm_struct *mm);
extern void flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end);
extern void flush_cache_page(struct vm_area_struct *vma, unsigned long user_addr, unsigned long pfn);
extern void flush_ptrace_access(struct vm_area_struct *vma, struct page *page,
unsigned long uaddr, void *kaddr,
unsigned long len, int write);
#endif
/*
......
......@@ -199,7 +199,21 @@ static inline void __raw_read_unlock(raw_rwlock_t *rw)
: "cc");
}
#define __raw_read_trylock(lock) generic__raw_read_trylock(lock)
static inline int __raw_read_trylock(raw_rwlock_t *rw)
{
unsigned long tmp tmp2 = 1;
__asm__ __volatile__(
"1: ldrex %0, [%2]\n"
" adds %0, %0, #1\n"
" strexpl %1, %0, [%2]\n"
: "=&r" (tmp), "+r" (tmp2)
: "r" (&rw->lock)
: "cc");
smp_mb();
return tmp2 == 0;
}
/* read_can_lock - would read_trylock() succeed? */
#define __raw_read_can_lock(x) ((x)->lock < 0x80000000)
......
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