From f167063a0c4e97dfbd8e42df76e71022bb2bdb7f Mon Sep 17 00:00:00 2001 From: Richard Kuo Date: Tue, 5 Feb 2013 14:23:37 -0600 Subject: [PATCH] Hexagon: switch to using the device type for IO mappings Uncached on our architecture can still have side effects such as canceled/replayed transactions; device type prevents this. Signed-off-by: Richard Kuo --- arch/hexagon/include/asm/vm_mmu.h | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/arch/hexagon/include/asm/vm_mmu.h b/arch/hexagon/include/asm/vm_mmu.h index 9a94de7969bb..e67b573cfef0 100644 --- a/arch/hexagon/include/asm/vm_mmu.h +++ b/arch/hexagon/include/asm/vm_mmu.h @@ -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_UNC 0x6 /* Uncached memory */ +#if CONFIG_HEXAGON_ARCH_VERSION >= 2 #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 */ +#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 */ /* -- 2.20.1