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[ARM] vfp: make fpexc bit names less verbose

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Use the fpexc abbreviated names instead of long verbose names
for fpexc bits.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2007-07-18 09:37:10 +01:00 committed by Russell King
parent 21d1ca0453
commit 228adef16d
3 changed files with 14 additions and 14 deletions
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12
arch/arm/vfp/vfphw.S
View file

@ -74,14 +74,14 @@ vfp_support_entry:
VFPFMRX r1, FPEXC @ Is the VFP enabled?
DBGSTR1 "fpexc %08x", r1
tst r1, #FPEXC_ENABLE
tst r1, #FPEXC_EN
bne look_for_VFP_exceptions @ VFP is already enabled
DBGSTR1 "enable %x", r10
ldr r3, last_VFP_context_address
orr r1, r1, #FPEXC_ENABLE @ user FPEXC has the enable bit set
orr r1, r1, #FPEXC_EN @ user FPEXC has the enable bit set
ldr r4, [r3, r11, lsl #2] @ last_VFP_context pointer
bic r5, r1, #FPEXC_EXCEPTION @ make sure exceptions are disabled
bic r5, r1, #FPEXC_EX @ make sure exceptions are disabled
cmp r4, r10
beq check_for_exception @ we are returning to the same
@ process, so the registers are
@ -124,7 +124,7 @@ no_old_VFP_process:
VFPFMXR FPSCR, r5 @ restore status
check_for_exception:
tst r1, #FPEXC_EXCEPTION
tst r1, #FPEXC_EX
bne process_exception @ might as well handle the pending
@ exception before retrying branch
@ out before setting an FPEXC that
@ -136,10 +136,10 @@ check_for_exception:
look_for_VFP_exceptions:
tst r1, #FPEXC_EXCEPTION
tst r1, #FPEXC_EX
bne process_exception
VFPFMRX r5, FPSCR
tst r5, #FPSCR_IXE @ IXE doesn't set FPEXC_EXCEPTION !
tst r5, #FPSCR_IXE @ IXE doesn't set FPEXC_EX !
bne process_exception
@ Fall into hand on to next handler - appropriate coproc instr

12
arch/arm/vfp/vfpmodule.c
View file

@ -53,7 +53,7 @@ static int vfp_notifier(struct notifier_block *self, unsigned long cmd, void *v)
* case the thread migrates to a different CPU. The
* restoring is done lazily.
*/
if ((fpexc & FPEXC_ENABLE) && last_VFP_context[cpu]) {
if ((fpexc & FPEXC_EN) && last_VFP_context[cpu]) {
vfp_save_state(last_VFP_context[cpu], fpexc);
last_VFP_context[cpu]->hard.cpu = cpu;
}
@ -70,7 +70,7 @@ static int vfp_notifier(struct notifier_block *self, unsigned long cmd, void *v)
* Always disable VFP so we can lazily save/restore the
* old state.
*/
fmxr(FPEXC, fpexc & ~FPEXC_ENABLE);
fmxr(FPEXC, fpexc & ~FPEXC_EN);
return NOTIFY_DONE;
}
@ -81,13 +81,13 @@ static int vfp_notifier(struct notifier_block *self, unsigned long cmd, void *v)
*/
memset(vfp, 0, sizeof(union vfp_state));
vfp->hard.fpexc = FPEXC_ENABLE;
vfp->hard.fpexc = FPEXC_EN;
vfp->hard.fpscr = FPSCR_ROUND_NEAREST;
/*
* Disable VFP to ensure we initialise it first.
*/
fmxr(FPEXC, fmrx(FPEXC) & ~FPEXC_ENABLE);
fmxr(FPEXC, fmrx(FPEXC) & ~FPEXC_EN);
}
/* flush and release case: Per-thread VFP cleanup. */
@ -229,7 +229,7 @@ void VFP9_bounce(u32 trigger, u32 fpexc, struct pt_regs *regs)
/*
* Enable access to the VFP so we can handle the bounce.
*/
fmxr(FPEXC, fpexc & ~(FPEXC_EXCEPTION|FPEXC_INV|FPEXC_UFC|FPEXC_IOC));
fmxr(FPEXC, fpexc & ~(FPEXC_EX|FPEXC_INV|FPEXC_UFC|FPEXC_IOC));
orig_fpscr = fpscr = fmrx(FPSCR);
@ -248,7 +248,7 @@ void VFP9_bounce(u32 trigger, u32 fpexc, struct pt_regs *regs)
/*
* Modify fpscr to indicate the number of iterations remaining
*/
if (fpexc & FPEXC_EXCEPTION) {
if (fpexc & FPEXC_EX) {
u32 len;
len = fpexc + (1 << FPEXC_LENGTH_BIT);

4
include/asm-arm/vfp.h
View file

@ -26,8 +26,8 @@
#define FPSID_REV_MASK (0xF << FPSID_REV_BIT)
/* FPEXC bits */
#define FPEXC_EXCEPTION (1<<31)
#define FPEXC_ENABLE (1<<30)
#define FPEXC_EX (1 << 31)
#define FPEXC_EN (1 << 30)
/* FPSCR bits */
#define FPSCR_DEFAULT_NAN (1<<25)