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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-01-16 04:28:01 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-01-16 04:28:01 +0300 |
| commit | 3fa116e8bdd94b4075cfb1e927f8c1fd3e31f582 (patch) | |
| tree | 3720155d4687826bfd78f24c5dfacab61667c6f7 /arch | |
| parent | f800c25b7a762d445ba1439a2428c8362157eba6 (diff) | |
| parent | a87e810f61b49f19bd29ea564b7cd1e92e43d989 (diff) | |
| download | linux-3fa116e8bdd94b4075cfb1e927f8c1fd3e31f582.tar.xz | |
Merge tag 'powerpc-3.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux
Pull powerpc fixes from Michael Ellerman:
"A few powerpc fixes"
* tag 'powerpc-3.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux:
powerpc: Work around gcc bug in current_thread_info()
cxl: Fix issues when unmapping contexts
powernv: Fix OPAL tracepoint code
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/include/asm/thread_info.h | 13 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powernv/opal-wrappers.S | 1 |
2 files changed, 7 insertions, 7 deletions
diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h index ebc4f165690a..0be6c681cab1 100644 --- a/arch/powerpc/include/asm/thread_info.h +++ b/arch/powerpc/include/asm/thread_info.h @@ -23,9 +23,9 @@ #define THREAD_SIZE (1 << THREAD_SHIFT) #ifdef CONFIG_PPC64 -#define CURRENT_THREAD_INFO(dest, sp) clrrdi dest, sp, THREAD_SHIFT +#define CURRENT_THREAD_INFO(dest, sp) stringify_in_c(clrrdi dest, sp, THREAD_SHIFT) #else -#define CURRENT_THREAD_INFO(dest, sp) rlwinm dest, sp, 0, 0, 31-THREAD_SHIFT +#define CURRENT_THREAD_INFO(dest, sp) stringify_in_c(rlwinm dest, sp, 0, 0, 31-THREAD_SHIFT) #endif #ifndef __ASSEMBLY__ @@ -71,12 +71,13 @@ struct thread_info { #define THREAD_SIZE_ORDER (THREAD_SHIFT - PAGE_SHIFT) /* how to get the thread information struct from C */ -register unsigned long __current_r1 asm("r1"); static inline struct thread_info *current_thread_info(void) { - /* gcc4, at least, is smart enough to turn this into a single - * rlwinm for ppc32 and clrrdi for ppc64 */ - return (struct thread_info *)(__current_r1 & ~(THREAD_SIZE-1)); + unsigned long val; + + asm (CURRENT_THREAD_INFO(%0,1) : "=r" (val)); + + return (struct thread_info *)val; } #endif /* __ASSEMBLY__ */ diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S index 54eca8b3b288..0509bca5e830 100644 --- a/arch/powerpc/platforms/powernv/opal-wrappers.S +++ b/arch/powerpc/platforms/powernv/opal-wrappers.S @@ -40,7 +40,6 @@ BEGIN_FTR_SECTION; \ b 1f; \ END_FTR_SECTION(0, 1); \ ld r12,opal_tracepoint_refcount@toc(r2); \ - std r12,32(r1); \ cmpdi r12,0; \ bne- LABEL; \ 1: |