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Hexagon: switch to using the device type for IO mappings

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Uncached on our architecture can still have side effects
such as canceled/replayed transactions; device type prevents
this.

Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
This commit is contained in:
Richard Kuo 2013-02-05 14:23:37 -06:00
parent 2b3c744c3b
commit f167063a0c
1 changed files with 5 additions and 6 deletions
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11
arch/hexagon/include/asm/vm_mmu.h
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@ -68,14 +68,13 @@
#define __HEXAGON_C_WB 0x0 /* Write-back, no L2 */
#define __HEXAGON_C_WT 0x1 /* Write-through, no L2 */
#define __HEXAGON_C_DEV 0x4 /* Device register space */
#define __HEXAGON_C_WT_L2 0x5 /* Write-through, with L2 */
/* this really should be #if CONFIG_HEXAGON_ARCH = 2 but that's not defined */
#if defined(CONFIG_HEXAGON_COMET) || defined(CONFIG_QDSP6_ST1)
#define __HEXAGON_C_UNC __HEXAGON_C_DEV
#else
#define __HEXAGON_C_UNC 0x6 /* Uncached memory */
#if CONFIG_HEXAGON_ARCH_VERSION >= 2
#define __HEXAGON_C_DEV 0x4 /* Device register space */
#else
#define __HEXAGON_C_DEV __HEXAGON_C_UNC
#endif
#define __HEXAGON_C_WT_L2 0x5 /* Write-through, with L2 */
#define __HEXAGON_C_WB_L2 0x7 /* Write-back, with L2 */
/*