diff options
| author | Ionela Voinescu <ionela.voinescu@imgtec.com> | 2015-01-21 01:51:25 +0000 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-04-17 09:23:29 +0200 |
| commit | deaaab25365b093229836d4294b1868093df7c47 (patch) | |
| tree | a1c4171a547d9e53739e9dca7e613fc42060cbc7 | |
| parent | fb032398d262ff7594c35c65b6f14897bb331a39 (diff) | |
arch/mips: Fix bug when performing cache operations
Each type of cache might have different cache line size.
Call the proper get_<*>cache_line function for each cache
type.
Fixes problem with get_L2cache_line which previously
targeted L3 cache line in the config register, instead of
L2 cache.
TODO: add support for tertiary caches and have cache
operations be called per CPU, not per architecture.
BUG=chrome-os-partner:31438
TEST=tested on Pistachio bring up board; worked as expected;
BRANCH=none
Change-Id: I7de946cbd6bac716e99fe07cb0deb5aa76c84171
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 62e2803c6f2a3ad02dc88f50a4ae2ea00487e3f4
Original-Change-Id: I03071f24aacac1805cfd89e4f44b14ed1c1e984e
Original-Signed-off-by: Ionela Voinescu <ionela.voinescu@imgtec.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/241853
Original-Reviewed-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/9731
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
| -rw-r--r-- | src/arch/mips/cache.c | 22 | ||||
| -rw-r--r-- | src/arch/mips/include/arch/cache.h | 2 |
2 files changed, 20 insertions, 4 deletions
diff --git a/src/arch/mips/cache.c b/src/arch/mips/cache.c index 209349539d..cfdae510b6 100644 --- a/src/arch/mips/cache.c +++ b/src/arch/mips/cache.c @@ -1,4 +1,3 @@ - /* * This file is part of the coreboot project. * @@ -20,6 +19,7 @@ #include <arch/cache.h> #include <symbols.h> +#include <console/console.h> /* Cache operations */ @@ -73,12 +73,29 @@ : "i" (op), "R" (*(unsigned char *)(addr))); \ }) +static int get_cache_line(uint8_t type) +{ + switch (type) { + case ICACHE: return get_icache_line(); + case DCACHE: return get_dcache_line(); + case L2CACHE: return get_L2cache_line(); + default: + printk(BIOS_ERR, "%s: Error: unsupported cache type.\n", + __func__); + return 0; + } + return 0; +} + void perform_cache_operation(uintptr_t start, size_t size, uint8_t operation) { u32 line_size, line_mask; uintptr_t end; - line_size = get_icache_line(); + line_size = get_cache_line((operation >> CACHE_TYPE_SHIFT) & + CACHE_TYPE_MASK); + if (!line_size) + return; line_mask = ~(line_size-1); end = (start + (line_size - 1) + size) & line_mask; start &= line_mask; @@ -108,5 +125,4 @@ void cache_invalidate_all(uintptr_t start, size_t size) perform_cache_operation(start, size, CACHE_CODE(ICACHE, WB_INVD)); perform_cache_operation(start, size, CACHE_CODE(DCACHE, WB_INVD)); perform_cache_operation(start, size, CACHE_CODE(L2CACHE, WB_INVD)); - } diff --git a/src/arch/mips/include/arch/cache.h b/src/arch/mips/include/arch/cache.h index 8c7b6f1aeb..907505981b 100644 --- a/src/arch/mips/include/arch/cache.h +++ b/src/arch/mips/include/arch/cache.h @@ -25,7 +25,7 @@ #define get_icache_line() __get_line_size($16, 1, 19, 3) #define get_dcache_line() __get_line_size($16, 1, 10, 3) -#define get_L2cache_line() __get_line_size($16, 2, 20, 4) +#define get_L2cache_line() __get_line_size($16, 2, 4, 4) #define CACHE_TYPE_SHIFT (0) #define CACHE_OP_SHIFT (2) |