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| author | Paul Mackerras <paulus@samba.org> | 2007-02-08 15:02:35 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-02-08 15:02:35 +1100 |
| commit | 12e86f92fcfe4f0bcab0ad7fa4088a64c60d9b38 (patch) | |
| tree | 37321a7dfd382dc2b3325d35af3acf5e9f34d482 | |
| parent | f03e64f2ca6ee3d0b7824536b1940497701fe766 (diff) | |
| download | linux-3.10-12e86f92fcfe4f0bcab0ad7fa4088a64c60d9b38.tar.gz linux-3.10-12e86f92fcfe4f0bcab0ad7fa4088a64c60d9b38.tar.bz2 linux-3.10-12e86f92fcfe4f0bcab0ad7fa4088a64c60d9b38.zip | |
[POWERPC] Only use H_BULK_REMOVE if the firmware supports it
The previous patch changing pSeries to use H_BULK_REMOVE broke the
JS20 blade, where the firmware doesn't support H_BULK_REMOVE. This
adds a firmware check so that on machines that don't have H_BULK_REMOVE,
we just use the H_REMOVE call as before.
Signed-off-by: Paul Mackerras <paulus@samba.org>
| -rw-r--r-- | arch/powerpc/platforms/pseries/firmware.c | 1 | ||||
| -rw-r--r-- | arch/powerpc/platforms/pseries/lpar.c | 22 | ||||
| -rw-r--r-- | include/asm-powerpc/firmware.h | 1 |
3 files changed, 16 insertions, 8 deletions
diff --git a/arch/powerpc/platforms/pseries/firmware.c b/arch/powerpc/platforms/pseries/firmware.c index 1c7b2baa5f7..90522e3c9d4 100644 --- a/arch/powerpc/platforms/pseries/firmware.c +++ b/arch/powerpc/platforms/pseries/firmware.c @@ -59,6 +59,7 @@ firmware_features_table[FIRMWARE_MAX_FEATURES] = { {FW_FEATURE_XDABR, "hcall-xdabr"}, {FW_FEATURE_MULTITCE, "hcall-multi-tce"}, {FW_FEATURE_SPLPAR, "hcall-splpar"}, + {FW_FEATURE_BULK_REMOVE, "hcall-bulk"}, }; /* Build up the firmware features bitmask using the contents of diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c index 5a684fbd8f2..7496005566e 100644 --- a/arch/powerpc/platforms/pseries/lpar.c +++ b/arch/powerpc/platforms/pseries/lpar.c @@ -516,7 +516,7 @@ static void pSeries_lpar_hpte_invalidate(unsigned long slot, unsigned long va, static void pSeries_lpar_flush_hash_range(unsigned long number, int local) { unsigned long i, pix, rc; - unsigned long flags; + unsigned long flags = 0; struct ppc64_tlb_batch *batch = &__get_cpu_var(ppc64_tlb_batch); int lock_tlbie = !cpu_has_feature(CPU_FTR_LOCKLESS_TLBIE); unsigned long param[9]; @@ -540,16 +540,22 @@ static void pSeries_lpar_flush_hash_range(unsigned long number, int local) hash = ~hash; slot = (hash & htab_hash_mask) * HPTES_PER_GROUP; slot += hidx & _PTEIDX_GROUP_IX; - param[pix] = HBR_REQUEST | HBR_AVPN | slot; - param[pix+1] = hpte_encode_v(va, psize) & HPTE_V_AVPN; - pix += 2; - if (pix == 8) { - rc = plpar_hcall9(H_BULK_REMOVE, param, + if (!firmware_has_feature(FW_FEATURE_BULK_REMOVE)) { + pSeries_lpar_hpte_invalidate(slot, va, psize, + local); + } else { + param[pix] = HBR_REQUEST | HBR_AVPN | slot; + param[pix+1] = hpte_encode_v(va, psize) & + HPTE_V_AVPN; + pix += 2; + if (pix == 8) { + rc = plpar_hcall9(H_BULK_REMOVE, param, param[0], param[1], param[2], param[3], param[4], param[5], param[6], param[7]); - BUG_ON(rc != H_SUCCESS); - pix = 0; + BUG_ON(rc != H_SUCCESS); + pix = 0; + } } } pte_iterate_hashed_end(); } diff --git a/include/asm-powerpc/firmware.h b/include/asm-powerpc/firmware.h index abba808cc53..3671c128f27 100644 --- a/include/asm-powerpc/firmware.h +++ b/include/asm-powerpc/firmware.h @@ -44,6 +44,7 @@ #define FW_FEATURE_LPAR ASM_CONST(0x0000000000400000) #define FW_FEATURE_PS3_LV1 ASM_CONST(0x0000000000800000) #define FW_FEATURE_BEAT ASM_CONST(0x0000000001000000) +#define FW_FEATURE_BULK_REMOVE ASM_CONST(0x0000000002000000) #ifndef __ASSEMBLY__ |