diff options
| author | Scott Wood <scottwood@freescale.com> | 2011-06-14 19:34:27 -0400 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-07-12 06:16:31 -0400 |
| commit | c51584d52e3878aa9b2bb98cdfb87173e7acf560 (patch) | |
| tree | c52d3133b30fcc6b68555b8b55232f89fb4b7c84 /arch/powerpc/include/asm/ppc_asm.h | |
| parent | 685659ee70db0bac47ffd619c726cf600e504fd7 (diff) | |
powerpc/e500: SPE register saving: take arbitrary struct offset
Previously, these macros hardcoded THREAD_EVR0 as the base of the save
area, relative to the base register passed. This base offset is now
passed as a separate macro parameter, allowing reuse with other SPE
save areas, such as used by KVM.
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch/powerpc/include/asm/ppc_asm.h')
| -rw-r--r-- | arch/powerpc/include/asm/ppc_asm.h | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/arch/powerpc/include/asm/ppc_asm.h b/arch/powerpc/include/asm/ppc_asm.h index 1b422381fc16..368f72f79808 100644 --- a/arch/powerpc/include/asm/ppc_asm.h +++ b/arch/powerpc/include/asm/ppc_asm.h | |||
| @@ -150,18 +150,22 @@ END_FW_FTR_SECTION_IFSET(FW_FEATURE_SPLPAR) | |||
| 150 | #define REST_16VSRSU(n,b,base) REST_8VSRSU(n,b,base); REST_8VSRSU(n+8,b,base) | 150 | #define REST_16VSRSU(n,b,base) REST_8VSRSU(n,b,base); REST_8VSRSU(n+8,b,base) |
| 151 | #define REST_32VSRSU(n,b,base) REST_16VSRSU(n,b,base); REST_16VSRSU(n+16,b,base) | 151 | #define REST_32VSRSU(n,b,base) REST_16VSRSU(n,b,base); REST_16VSRSU(n+16,b,base) |
| 152 | 152 | ||
| 153 | #define SAVE_EVR(n,s,base) evmergehi s,s,n; stw s,THREAD_EVR0+4*(n)(base) | 153 | /* |
| 154 | #define SAVE_2EVRS(n,s,base) SAVE_EVR(n,s,base); SAVE_EVR(n+1,s,base) | 154 | * b = base register for addressing, o = base offset from register of 1st EVR |
| 155 | #define SAVE_4EVRS(n,s,base) SAVE_2EVRS(n,s,base); SAVE_2EVRS(n+2,s,base) | 155 | * n = first EVR, s = scratch |
| 156 | #define SAVE_8EVRS(n,s,base) SAVE_4EVRS(n,s,base); SAVE_4EVRS(n+4,s,base) | 156 | */ |
| 157 | #define SAVE_16EVRS(n,s,base) SAVE_8EVRS(n,s,base); SAVE_8EVRS(n+8,s,base) | 157 | #define SAVE_EVR(n,s,b,o) evmergehi s,s,n; stw s,o+4*(n)(b) |
| 158 | #define SAVE_32EVRS(n,s,base) SAVE_16EVRS(n,s,base); SAVE_16EVRS(n+16,s,base) | 158 | #define SAVE_2EVRS(n,s,b,o) SAVE_EVR(n,s,b,o); SAVE_EVR(n+1,s,b,o) |
| 159 | #define REST_EVR(n,s,base) lwz s,THREAD_EVR0+4*(n)(base); evmergelo n,s,n | 159 | #define SAVE_4EVRS(n,s,b,o) SAVE_2EVRS(n,s,b,o); SAVE_2EVRS(n+2,s,b,o) |
| 160 | #define REST_2EVRS(n,s,base) REST_EVR(n,s,base); REST_EVR(n+1,s,base) | 160 | #define SAVE_8EVRS(n,s,b,o) SAVE_4EVRS(n,s,b,o); SAVE_4EVRS(n+4,s,b,o) |
| 161 | #define REST_4EVRS(n,s,base) REST_2EVRS(n,s,base); REST_2EVRS(n+2,s,base) | 161 | #define SAVE_16EVRS(n,s,b,o) SAVE_8EVRS(n,s,b,o); SAVE_8EVRS(n+8,s,b,o) |
| 162 | #define REST_8EVRS(n,s,base) REST_4EVRS(n,s,base); REST_4EVRS(n+4,s,base) | 162 | #define SAVE_32EVRS(n,s,b,o) SAVE_16EVRS(n,s,b,o); SAVE_16EVRS(n+16,s,b,o) |
| 163 | #define REST_16EVRS(n,s,base) REST_8EVRS(n,s,base); REST_8EVRS(n+8,s,base) | 163 | #define REST_EVR(n,s,b,o) lwz s,o+4*(n)(b); evmergelo n,s,n |
| 164 | #define REST_32EVRS(n,s,base) REST_16EVRS(n,s,base); REST_16EVRS(n+16,s,base) | 164 | #define REST_2EVRS(n,s,b,o) REST_EVR(n,s,b,o); REST_EVR(n+1,s,b,o) |
| 165 | #define REST_4EVRS(n,s,b,o) REST_2EVRS(n,s,b,o); REST_2EVRS(n+2,s,b,o) | ||
| 166 | #define REST_8EVRS(n,s,b,o) REST_4EVRS(n,s,b,o); REST_4EVRS(n+4,s,b,o) | ||
| 167 | #define REST_16EVRS(n,s,b,o) REST_8EVRS(n,s,b,o); REST_8EVRS(n+8,s,b,o) | ||
| 168 | #define REST_32EVRS(n,s,b,o) REST_16EVRS(n,s,b,o); REST_16EVRS(n+16,s,b,o) | ||
| 165 | 169 | ||
| 166 | /* Macros to adjust thread priority for hardware multithreading */ | 170 | /* Macros to adjust thread priority for hardware multithreading */ |
| 167 | #define HMT_VERY_LOW or 31,31,31 # very low priority | 171 | #define HMT_VERY_LOW or 31,31,31 # very low priority |