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| author |   Alexey Brodkin <Alexey.Brodkin@synopsys.com> | 2015-12-18 22:28:51 +0300 |
|---|---|---|
| committer |   Vineet Gupta <vgupta@synopsys.com> | 2015-12-21 12:10:40 +0530 |
| commit | 4b32e89af7a054ae3f84f388cb622aeeb8beec9d (patch) | |
| tree | 12085de8eb5a79ee2fa4092cfae19c953ef14603 /arch | |
| parent | ARC: mm: HIGHMEM: Fix section mismatch splat (diff) | |
| download | linux-dev-4b32e89af7a054ae3f84f388cb622aeeb8beec9d.tar.xz linux-dev-4b32e89af7a054ae3f84f388cb622aeeb8beec9d.zip | |
ARC: mm: fix building for MMU v2
ARC700 cores with MMU v2 don't have IC_PTAG AUX register and so we only
define ARC_REG_IC_PTAG for MMU versions >= 3.
But current implementation of cache_line_loop_vX() routines assumes
availability of all of them (v2, v3 and v4) simultaneously.
And given undefined ARC_REG_IC_PTAG if CONFIG_MMU_VER=2 we're seeing
compilation problem:
---------------------------------->8-------------------------------
CC arch/arc/mm/cache.o
arch/arc/mm/cache.c: In function '__cache_line_loop_v3':
arch/arc/mm/cache.c:270:13: error: 'ARC_REG_IC_PTAG' undeclared (first use in this function)
aux_tag = ARC_REG_IC_PTAG;
^
arch/arc/mm/cache.c:270:13: note: each undeclared identifier is reported only once for each function it appears in
scripts/Makefile.build:258: recipe for target 'arch/arc/mm/cache.o' failed
---------------------------------->8-------------------------------
The simples fix is to have ARC_REG_IC_PTAG defined regardless MMU
version being used.
We don't use it in cache_line_loop_v2() anyways so who cares.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arc/include/asm/cache.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/arc/include/asm/cache.h b/arch/arc/include/asm/cache.h index abf06e81c929..210ef3e72332 100644 --- a/arch/arc/include/asm/cache.h +++ b/arch/arc/include/asm/cache.h @@ -62,9 +62,7 @@ extern int ioc_exists; #define ARC_REG_IC_IVIC 0x10 #define ARC_REG_IC_CTRL 0x11 #define ARC_REG_IC_IVIL 0x19 -#if defined(CONFIG_ARC_MMU_V3) || defined(CONFIG_ARC_MMU_V4) #define ARC_REG_IC_PTAG 0x1E -#endif #define ARC_REG_IC_PTAG_HI 0x1F /* Bit val in IC_CTRL */ |