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authorChristophe Leroy <christophe.leroy@csgroup.eu>2021-03-19 07:34:43 +0100
committerMichael Ellerman <mpe@ellerman.id.au>2021-03-29 04:22:17 +0200
commit48cf12d88969bd4238b8769767eb476970319d93 (patch)
tree1a2ffdb8efbf23ec2e1dd1e836b7362fd5792d21 /arch/powerpc/kernel/misc_32.S
parentpowerpc/setup_64: Fix sparse warnings (diff)
downloadlinux-48cf12d88969bd4238b8769767eb476970319d93.tar.xz
linux-48cf12d88969bd4238b8769767eb476970319d93.zip
powerpc/irq: Inline call_do_irq() and call_do_softirq()
call_do_irq() and call_do_softirq() are simple enough to be worth inlining. Inlining them avoids an mflr/mtlr pair plus a save/reload on stack. This is inspired from S390 arch. Several other arches do more or less the same. The way sparc arch does seems odd thought. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20210320122227.345427-1-mpe@ellerman.id.au
Diffstat (limited to 'arch/powerpc/kernel/misc_32.S')
-rw-r--r--arch/powerpc/kernel/misc_32.S25
1 files changed, 0 insertions, 25 deletions
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index acc410043b96..6a076bef2932 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -27,31 +27,6 @@
.text
-_GLOBAL(call_do_softirq)
- mflr r0
- stw r0,4(r1)
- stwu r1,THREAD_SIZE-STACK_FRAME_OVERHEAD(r3)
- mr r1,r3
- bl __do_softirq
- lwz r1,0(r1)
- lwz r0,4(r1)
- mtlr r0
- blr
-
-/*
- * void call_do_irq(struct pt_regs *regs, void *sp);
- */
-_GLOBAL(call_do_irq)
- mflr r0
- stw r0,4(r1)
- stwu r1,THREAD_SIZE-STACK_FRAME_OVERHEAD(r4)
- mr r1,r4
- bl __do_irq
- lwz r1,0(r1)
- lwz r0,4(r1)
- mtlr r0
- blr
-
/*
* This returns the high 64 bits of the product of two 64-bit numbers.
*/