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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2018-06-12 16:38:35 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2018-06-12 16:38:35 -0700 |
| commit | 5aff29efbec020f0997e5cdbefce0ff383518986 (patch) | |
| tree | 8b7df95c23b3cd2cfa17873ff0fa999dd5ae35bd /arch/mips/mm/c-r4k.c | |
| parent | 9bd034225300c7ddf14f4b4c28531efc7a5e1524 (diff) | |
| parent | 3ef8a2eeb6dcd1fa61ec8ae107976e655f50e412 (diff) | |
Merge branch 'ib/4.17-xen-kbdfront-runtime-config' into next
Bring in xen-kbdfront changes.
Diffstat (limited to 'arch/mips/mm/c-r4k.c')
| -rw-r--r-- | arch/mips/mm/c-r4k.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index 6f534b209971..e12dfa48b478 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -851,9 +851,12 @@ static void r4k_dma_cache_wback_inv(unsigned long addr, unsigned long size) /* * Either no secondary cache or the available caches don't have the * subset property so we have to flush the primary caches - * explicitly + * explicitly. + * If we would need IPI to perform an INDEX-type operation, then + * we have to use the HIT-type alternative as IPI cannot be used + * here due to interrupts possibly being disabled. */ - if (size >= dcache_size) { + if (!r4k_op_needs_ipi(R4K_INDEX) && size >= dcache_size) { r4k_blast_dcache(); } else { R4600_HIT_CACHEOP_WAR_IMPL; @@ -890,7 +893,7 @@ static void r4k_dma_cache_inv(unsigned long addr, unsigned long size) return; } - if (size >= dcache_size) { + if (!r4k_op_needs_ipi(R4K_INDEX) && size >= dcache_size) { r4k_blast_dcache(); } else { R4600_HIT_CACHEOP_WAR_IMPL; |