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arc: define and use PTAG AUX regs for MMUv3 only

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DC_PTAG and IC_PTAG registers only exist in MMUv3.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
This commit is contained in:
Alexey Brodkin 2015-02-03 13:58:12 +03:00
parent 812980bdd6
commit 5ff40f3d42
2 changed files with 5 additions and 5 deletions
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4
arch/arc/include/asm/arcregs.h
View File

@ -23,7 +23,7 @@
#define ARC_AUX_IC_IVIC 0x10
#define ARC_AUX_IC_CTRL 0x11
#define ARC_AUX_IC_IVIL 0x19
#if (CONFIG_ARC_MMU_VER > 2)
#if (CONFIG_ARC_MMU_VER == 3)
#define ARC_AUX_IC_PTAG 0x1E
#endif
#define ARC_BCR_IC_BUILD 0x77
@ -42,7 +42,7 @@
#define ARC_AUX_DC_IVDL 0x4A
#define ARC_AUX_DC_FLSH 0x4B
#define ARC_AUX_DC_FLDL 0x4C
#if (CONFIG_ARC_MMU_VER > 2)
#if (CONFIG_ARC_MMU_VER == 3)
#define ARC_AUX_DC_PTAG 0x5C
#endif
#define ARC_BCR_DC_BUILD 0x72

6
arch/arc/lib/cache.c
View File

@ -101,7 +101,7 @@ void flush_dcache_all(void)
#ifndef CONFIG_SYS_DCACHE_OFF
static void dcache_flush_line(unsigned addr)
{
#if (CONFIG_ARC_MMU_VER > 2)
#if (CONFIG_ARC_MMU_VER == 3)
write_aux_reg(ARC_AUX_DC_PTAG, addr);
#endif
write_aux_reg(ARC_AUX_DC_FLDL, addr);
@ -115,7 +115,7 @@ static void dcache_flush_line(unsigned addr)
* Invalidate I$ for addresses range just flushed from D$.
* If we try to execute data flushed above it will be valid/correct
*/
#if (CONFIG_ARC_MMU_VER > 2)
#if (CONFIG_ARC_MMU_VER == 3)
write_aux_reg(ARC_AUX_IC_PTAG, addr);
#endif
write_aux_reg(ARC_AUX_IC_IVIL, addr);
@ -145,7 +145,7 @@ void invalidate_dcache_range(unsigned long start, unsigned long end)
end = end & (~(CONFIG_SYS_CACHELINE_SIZE - 1));
for (addr = start; addr <= end; addr += CONFIG_SYS_CACHELINE_SIZE) {
#if (CONFIG_ARC_MMU_VER > 2)
#if (CONFIG_ARC_MMU_VER == 3)
write_aux_reg(ARC_AUX_DC_PTAG, addr);
#endif
write_aux_reg(ARC_AUX_DC_IVDL, addr);