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authorMichael Ellerman <mpe@ellerman.id.au>2014-08-06 15:42:17 +1000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2014-08-13 15:13:43 +1000
commit3609e09fd824c37df6f2bf13caa88f6f54a11922 (patch)
tree0835aa502a217e3cd30f1243f5318fbd84f56e9e /arch/powerpc
parent97b3be1e9404f4c1645f3286428abd4d2052041e (diff)
downloadlinux-3609e09fd824c37df6f2bf13caa88f6f54a11922.tar.bz2
powerpc: Add POWER8 features to CPU_FTRS_POSSIBLE/ALWAYS
We have been a bit slack about updating the CPU_FTRS_POSSIBLE and CPU_FTRS_ALWAYS masks. When we added POWER8, and also POWER8E we forgot to update the ALWAYS mask. And when we added POWER8_DD1 we forgot to update both the POSSIBLE and ALWAYS masks. Luckily this hasn't caused any actual bugs AFAICS. Failing to update the ALWAYS mask just forgoes a potential optimisation opportunity. Failing to update the POSSIBLE mask for POWER8_DD1 is also OK because it only removes a bit rather than adding any. Regardless they should all be in both masks so as to avoid any future bugs when the set of ALWAYS/POSSIBLE bits changes, or the masks themselves change. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Michael Neuling <mikey@neuling.org> Acked-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/include/asm/cputable.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
index 642e436d4595..daa5af91163c 100644
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -459,7 +459,8 @@ extern const char *powerpc_base_platform;
#define CPU_FTRS_POSSIBLE \
(CPU_FTRS_POWER4 | CPU_FTRS_PPC970 | CPU_FTRS_POWER5 | \
CPU_FTRS_POWER6 | CPU_FTRS_POWER7 | CPU_FTRS_POWER8E | \
- CPU_FTRS_POWER8 | CPU_FTRS_CELL | CPU_FTRS_PA6T | CPU_FTR_VSX)
+ CPU_FTRS_POWER8 | CPU_FTRS_POWER8_DD1 | CPU_FTRS_CELL | \
+ CPU_FTRS_PA6T | CPU_FTR_VSX)
#endif
#else
enum {
@@ -509,7 +510,8 @@ enum {
#define CPU_FTRS_ALWAYS \
(CPU_FTRS_POWER4 & CPU_FTRS_PPC970 & CPU_FTRS_POWER5 & \
CPU_FTRS_POWER6 & CPU_FTRS_POWER7 & CPU_FTRS_CELL & \
- CPU_FTRS_PA6T & CPU_FTRS_POSSIBLE)
+ CPU_FTRS_PA6T & CPU_FTRS_POWER8 & CPU_FTRS_POWER8E & \
+ CPU_FTRS_POWER8_DD1 & CPU_FTRS_POSSIBLE)
#endif
#else
enum {