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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-06-20 11:25:44 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-06-20 11:25:44 -0400
commitaf52739b922f656eb1f39016fabaabe4baeda2e2 (patch)
tree79a7aa810d0493cd0cf4adebac26d37f12e8b545 /arch/arc/mm/cache.c
parent25ed6a5e97809129a1bc852b6b5c7d03baa112c4 (diff)
parent33688abb2802ff3a230bd2441f765477b94cc89e (diff)
Merge 4.7-rc4 into staging-next
We want the fixes in here, and we can resolve a merge issue in drivers/iio/industrialio-trigger.c Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arc/mm/cache.c')
-rw-r--r--arch/arc/mm/cache.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arc/mm/cache.c b/arch/arc/mm/cache.c
index 9e5eddbb856f..5a294b2c3cb3 100644
--- a/arch/arc/mm/cache.c
+++ b/arch/arc/mm/cache.c
@@ -215,7 +215,7 @@ slc_chk:
215 * ------------------ 215 * ------------------
216 * This ver of MMU supports variable page sizes (1k-16k): although Linux will 216 * This ver of MMU supports variable page sizes (1k-16k): although Linux will
217 * only support 8k (default), 16k and 4k. 217 * only support 8k (default), 16k and 4k.
218 * However from hardware perspective, smaller page sizes aggrevate aliasing 218 * However from hardware perspective, smaller page sizes aggravate aliasing
219 * meaning more vaddr bits needed to disambiguate the cache-line-op ; 219 * meaning more vaddr bits needed to disambiguate the cache-line-op ;
220 * the existing scheme of piggybacking won't work for certain configurations. 220 * the existing scheme of piggybacking won't work for certain configurations.
221 * Two new registers IC_PTAG and DC_PTAG inttoduced. 221 * Two new registers IC_PTAG and DC_PTAG inttoduced.
@@ -302,7 +302,7 @@ void __cache_line_loop_v3(phys_addr_t paddr, unsigned long vaddr,
302 302
303 /* 303 /*
304 * This is technically for MMU v4, using the MMU v3 programming model 304 * This is technically for MMU v4, using the MMU v3 programming model
305 * Special work for HS38 aliasing I-cache configuratino with PAE40 305 * Special work for HS38 aliasing I-cache configuration with PAE40
306 * - upper 8 bits of paddr need to be written into PTAG_HI 306 * - upper 8 bits of paddr need to be written into PTAG_HI
307 * - (and needs to be written before the lower 32 bits) 307 * - (and needs to be written before the lower 32 bits)
308 * Note that PTAG_HI is hoisted outside the line loop 308 * Note that PTAG_HI is hoisted outside the line loop
@@ -936,7 +936,7 @@ void arc_cache_init(void)
936 ic->ver, CONFIG_ARC_MMU_VER); 936 ic->ver, CONFIG_ARC_MMU_VER);
937 937
938 /* 938 /*
939 * In MMU v4 (HS38x) the alising icache config uses IVIL/PTAG 939 * In MMU v4 (HS38x) the aliasing icache config uses IVIL/PTAG
940 * pair to provide vaddr/paddr respectively, just as in MMU v3 940 * pair to provide vaddr/paddr respectively, just as in MMU v3
941 */ 941 */
942 if (is_isa_arcv2() && ic->alias) 942 if (is_isa_arcv2() && ic->alias)