Add a prefetch abort handler

This patch adds a prefetch abort handler similar to the data abort one
and renames the latter for consistency. Initial implementation by Paul
Brook with some renaming by Catalin Marinas.

Signed-off-by: Paul Brook <paul@codesourcery.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

17 files changed, 40 insertions, 0 deletions

diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 084fe8de3efe..708ee25b8df4 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -18,6 +18,7 @@ config CPU_ARM610
 	select CPU_CP15_MMU
 	select CPU_COPY_V3 if MMU
 	select CPU_TLB_V3 if MMU
+	select CPU_PABRT_NOIFAR
 	help
 	  The ARM610 is the successor to the ARM3 processor
 	  and was produced by VLSI Technology Inc.
@@ -49,6 +50,7 @@ config CPU_ARM710
 	select CPU_CP15_MMU
 	select CPU_COPY_V3 if MMU
 	select CPU_TLB_V3 if MMU
+	select CPU_PABRT_NOIFAR
 	help
 	  A 32-bit RISC microprocessor based on the ARM7 processor core
 	  designed by Advanced RISC Machines Ltd. The ARM710 is the
@@ -64,6 +66,7 @@ config CPU_ARM720T
 	default y if ARCH_CLPS711X || ARCH_L7200 || ARCH_CDB89712 || ARCH_H720X
 	select CPU_32v4T
 	select CPU_ABRT_LV4T
+	select CPU_PABRT_NOIFAR
 	select CPU_CACHE_V4
 	select CPU_CACHE_VIVT
 	select CPU_CP15_MMU
@@ -113,6 +116,7 @@ config CPU_ARM920T
 	default y if CPU_S3C2410 || CPU_S3C2440 || CPU_S3C2442 || ARCH_AT91RM9200
 	select CPU_32v4T
 	select CPU_ABRT_EV4T
+	select CPU_PABRT_NOIFAR
 	select CPU_CACHE_V4WT
 	select CPU_CACHE_VIVT
 	select CPU_CP15_MMU
@@ -135,6 +139,7 @@ config CPU_ARM922T
 	default y if ARCH_LH7A40X || ARCH_KS8695
 	select CPU_32v4T
 	select CPU_ABRT_EV4T
+	select CPU_PABRT_NOIFAR
 	select CPU_CACHE_V4WT
 	select CPU_CACHE_VIVT
 	select CPU_CP15_MMU
@@ -155,6 +160,7 @@ config CPU_ARM925T
  	default y if ARCH_OMAP15XX
 	select CPU_32v4T
 	select CPU_ABRT_EV4T
+	select CPU_PABRT_NOIFAR
 	select CPU_CACHE_V4WT
 	select CPU_CACHE_VIVT
 	select CPU_CP15_MMU
@@ -175,6 +181,7 @@ config CPU_ARM926T
 	default y if ARCH_VERSATILE_PB || MACH_VERSATILE_AB || ARCH_OMAP730 || ARCH_OMAP16XX || ARCH_PNX4008 || ARCH_NETX || CPU_S3C2412 || ARCH_AT91SAM9260 || ARCH_AT91SAM9261 || ARCH_AT91SAM9263 || ARCH_AT91SAM9RL || ARCH_AT91CAP9 || ARCH_NS9XXX || ARCH_DAVINCI
 	select CPU_32v5
 	select CPU_ABRT_EV5TJ
+	select CPU_PABRT_NOIFAR
 	select CPU_CACHE_VIVT
 	select CPU_CP15_MMU
 	select CPU_COPY_V4WB if MMU
@@ -226,6 +233,7 @@ config CPU_ARM1020
 	depends on ARCH_INTEGRATOR
 	select CPU_32v5
 	select CPU_ABRT_EV4T
+	select CPU_PABRT_NOIFAR
 	select CPU_CACHE_V4WT
 	select CPU_CACHE_VIVT
 	select CPU_CP15_MMU
@@ -244,6 +252,7 @@ config CPU_ARM1020E
 	depends on ARCH_INTEGRATOR
 	select CPU_32v5
 	select CPU_ABRT_EV4T
+	select CPU_PABRT_NOIFAR
 	select CPU_CACHE_V4WT
 	select CPU_CACHE_VIVT
 	select CPU_CP15_MMU
@@ -257,6 +266,7 @@ config CPU_ARM1022
 	depends on ARCH_INTEGRATOR
 	select CPU_32v5
 	select CPU_ABRT_EV4T
+	select CPU_PABRT_NOIFAR
 	select CPU_CACHE_VIVT
 	select CPU_CP15_MMU
 	select CPU_COPY_V4WB if MMU # can probably do better
@@ -275,6 +285,7 @@ config CPU_ARM1026
 	depends on ARCH_INTEGRATOR
 	select CPU_32v5
 	select CPU_ABRT_EV5T # But need Jazelle, but EV5TJ ignores bit 10
+	select CPU_PABRT_NOIFAR
 	select CPU_CACHE_VIVT
 	select CPU_CP15_MMU
 	select CPU_COPY_V4WB if MMU # can probably do better
@@ -293,6 +304,7 @@ config CPU_SA110
 	select CPU_32v3 if ARCH_RPC
 	select CPU_32v4 if !ARCH_RPC
 	select CPU_ABRT_EV4
+	select CPU_PABRT_NOIFAR
 	select CPU_CACHE_V4WB
 	select CPU_CACHE_VIVT
 	select CPU_CP15_MMU
@@ -314,6 +326,7 @@ config CPU_SA1100
 	default y
 	select CPU_32v4
 	select CPU_ABRT_EV4
+	select CPU_PABRT_NOIFAR
 	select CPU_CACHE_V4WB
 	select CPU_CACHE_VIVT
 	select CPU_CP15_MMU
@@ -326,6 +339,7 @@ config CPU_XSCALE
 	default y
 	select CPU_32v5
 	select CPU_ABRT_EV5T
+	select CPU_PABRT_NOIFAR
 	select CPU_CACHE_VIVT
 	select CPU_CP15_MMU
 	select CPU_TLB_V4WBI if MMU
@@ -349,6 +363,7 @@ config CPU_FEROCEON
 	default y
 	select CPU_32v5
 	select CPU_ABRT_EV5T
+	select CPU_PABRT_NOIFAR
 	select CPU_CACHE_VIVT
 	select CPU_CP15_MMU
 	select CPU_COPY_V4WB if MMU
@@ -371,6 +386,7 @@ config CPU_V6
 	default y if ARCH_MSM7X00A
 	select CPU_32v6
 	select CPU_ABRT_EV6
+	select CPU_PABRT_NOIFAR
 	select CPU_CACHE_V6
 	select CPU_CACHE_VIPT
 	select CPU_CP15_MMU
@@ -397,6 +413,7 @@ config CPU_V7
 	select CPU_32v6K
 	select CPU_32v7
 	select CPU_ABRT_EV7
+	select CPU_PABRT_IFAR
 	select CPU_CACHE_V7
 	select CPU_CACHE_VIPT
 	select CPU_CP15_MMU
@@ -458,6 +475,12 @@ config CPU_ABRT_EV6
 config CPU_ABRT_EV7
 	bool
 
+config CPU_PABRT_IFAR
+	bool
+
+config CPU_PABRT_NOIFAR
+	bool
+
 # The cache model
 config CPU_CACHE_V3
 	bool
diff --git a/arch/arm/mm/proc-arm1020.S b/arch/arm/mm/proc-arm1020.S
index 700c04d6996e..32fd7ea533f2 100644
--- a/arch/arm/mm/proc-arm1020.S
+++ b/arch/arm/mm/proc-arm1020.S
@@ -478,6 +478,7 @@ arm1020_processor_functions:
 	.word	cpu_arm1020_dcache_clean_area
 	.word	cpu_arm1020_switch_mm
 	.word	cpu_arm1020_set_pte_ext
+	.word	pabort_noifar
 	.size	arm1020_processor_functions, . - arm1020_processor_functions
 
 	.section ".rodata"
diff --git a/arch/arm/mm/proc-arm1020e.S b/arch/arm/mm/proc-arm1020e.S
index 1cc206ab5eae..fe2b0ae70274 100644
--- a/arch/arm/mm/proc-arm1020e.S
+++ b/arch/arm/mm/proc-arm1020e.S
@@ -459,6 +459,7 @@ arm1020e_processor_functions:
 	.word	cpu_arm1020e_dcache_clean_area
 	.word	cpu_arm1020e_switch_mm
 	.word	cpu_arm1020e_set_pte_ext
+	.word	pabort_noifar
 	.size	arm1020e_processor_functions, . - arm1020e_processor_functions
 
 	.section ".rodata"
diff --git a/arch/arm/mm/proc-arm1022.S b/arch/arm/mm/proc-arm1022.S
index aff0ea08e2f8..06dde678e19d 100644
--- a/arch/arm/mm/proc-arm1022.S
+++ b/arch/arm/mm/proc-arm1022.S
@@ -442,6 +442,7 @@ arm1022_processor_functions:
 	.word	cpu_arm1022_dcache_clean_area
 	.word	cpu_arm1022_switch_mm
 	.word	cpu_arm1022_set_pte_ext
+	.word	pabort_noifar
 	.size	arm1022_processor_functions, . - arm1022_processor_functions
 
 	.section ".rodata"
diff --git a/arch/arm/mm/proc-arm1026.S b/arch/arm/mm/proc-arm1026.S
index 65e43a109085..f5506e6e681e 100644
--- a/arch/arm/mm/proc-arm1026.S
+++ b/arch/arm/mm/proc-arm1026.S
@@ -437,6 +437,7 @@ arm1026_processor_functions:
 	.word	cpu_arm1026_dcache_clean_area
 	.word	cpu_arm1026_switch_mm
 	.word	cpu_arm1026_set_pte_ext
+	.word	pabort_noifar
 	.size	arm1026_processor_functions, . - arm1026_processor_functions
 
 	.section .rodata
diff --git a/arch/arm/mm/proc-arm6_7.S b/arch/arm/mm/proc-arm6_7.S
index 123a7dc7a433..14b6a95c8d45 100644
--- a/arch/arm/mm/proc-arm6_7.S
+++ b/arch/arm/mm/proc-arm6_7.S
@@ -300,6 +300,7 @@ ENTRY(arm6_processor_functions)
 		.word	cpu_arm6_dcache_clean_area
 		.word	cpu_arm6_switch_mm
 		.word	cpu_arm6_set_pte_ext
+		.word	pabort_noifar
 		.size	arm6_processor_functions, . - arm6_processor_functions
 
 /*
@@ -316,6 +317,7 @@ ENTRY(arm7_processor_functions)
 		.word	cpu_arm7_dcache_clean_area
 		.word	cpu_arm7_switch_mm
 		.word	cpu_arm7_set_pte_ext
+		.word	pabort_noifar
 		.size	arm7_processor_functions, . - arm7_processor_functions
 
 		.section ".rodata"
diff --git a/arch/arm/mm/proc-arm720.S b/arch/arm/mm/proc-arm720.S
index dc763be43362..ca5e7aac2da7 100644
--- a/arch/arm/mm/proc-arm720.S
+++ b/arch/arm/mm/proc-arm720.S
@@ -205,6 +205,7 @@ ENTRY(arm720_processor_functions)
 		.word	cpu_arm720_dcache_clean_area
 		.word	cpu_arm720_switch_mm
 		.word	cpu_arm720_set_pte_ext
+		.word	pabort_noifar
 		.size	arm720_processor_functions, . - arm720_processor_functions
 
 		.section ".rodata"
diff --git a/arch/arm/mm/proc-arm920.S b/arch/arm/mm/proc-arm920.S
index 75c945ed6c4d..0170d4f466ea 100644
--- a/arch/arm/mm/proc-arm920.S
+++ b/arch/arm/mm/proc-arm920.S
@@ -424,6 +424,7 @@ arm920_processor_functions:
 	.word	cpu_arm920_dcache_clean_area
 	.word	cpu_arm920_switch_mm
 	.word	cpu_arm920_set_pte_ext
+	.word	pabort_noifar
 	.size	arm920_processor_functions, . - arm920_processor_functions
 
 	.section ".rodata"
diff --git a/arch/arm/mm/proc-arm922.S b/arch/arm/mm/proc-arm922.S
index ffb751b877ff..b7952493d404 100644
--- a/arch/arm/mm/proc-arm922.S
+++ b/arch/arm/mm/proc-arm922.S
@@ -428,6 +428,7 @@ arm922_processor_functions:
 	.word	cpu_arm922_dcache_clean_area
 	.word	cpu_arm922_switch_mm
 	.word	cpu_arm922_set_pte_ext
+	.word	pabort_noifar
 	.size	arm922_processor_functions, . - arm922_processor_functions
 
 	.section ".rodata"
diff --git a/arch/arm/mm/proc-arm925.S b/arch/arm/mm/proc-arm925.S
index 44c2c997819f..e2988eba4cf6 100644
--- a/arch/arm/mm/proc-arm925.S
+++ b/arch/arm/mm/proc-arm925.S
@@ -491,6 +491,7 @@ arm925_processor_functions:
 	.word	cpu_arm925_dcache_clean_area
 	.word	cpu_arm925_switch_mm
 	.word	cpu_arm925_set_pte_ext
+	.word	pabort_noifar
 	.size	arm925_processor_functions, . - arm925_processor_functions
 
 	.section ".rodata"
diff --git a/arch/arm/mm/proc-arm926.S b/arch/arm/mm/proc-arm926.S
index 194ef48968e6..62f7d1dfe016 100644
--- a/arch/arm/mm/proc-arm926.S
+++ b/arch/arm/mm/proc-arm926.S
@@ -444,6 +444,7 @@ arm926_processor_functions:
 	.word	cpu_arm926_dcache_clean_area
 	.word	cpu_arm926_switch_mm
 	.word	cpu_arm926_set_pte_ext
+	.word	pabort_noifar
 	.size	arm926_processor_functions, . - arm926_processor_functions
 
 	.section ".rodata"
diff --git a/arch/arm/mm/proc-feroceon.S b/arch/arm/mm/proc-feroceon.S
index fa0dc7e6f0ea..2f169b28e938 100644
--- a/arch/arm/mm/proc-feroceon.S
+++ b/arch/arm/mm/proc-feroceon.S
@@ -430,6 +430,7 @@ feroceon_processor_functions:
 	.word	cpu_feroceon_dcache_clean_area
 	.word	cpu_feroceon_switch_mm
 	.word	cpu_feroceon_set_pte_ext
+	.word	pabort_noifar
 	.size	feroceon_processor_functions, . - feroceon_processor_functions
 
 	.section ".rodata"
diff --git a/arch/arm/mm/proc-sa110.S b/arch/arm/mm/proc-sa110.S
index 6e226e12989f..4db3d6299a2b 100644
--- a/arch/arm/mm/proc-sa110.S
+++ b/arch/arm/mm/proc-sa110.S
@@ -223,6 +223,7 @@ ENTRY(sa110_processor_functions)
 	.word	cpu_sa110_dcache_clean_area
 	.word	cpu_sa110_switch_mm
 	.word	cpu_sa110_set_pte_ext
+	.word	pabort_noifar
 	.size	sa110_processor_functions, . - sa110_processor_functions
 
 	.section ".rodata"
diff --git a/arch/arm/mm/proc-sa1100.S b/arch/arm/mm/proc-sa1100.S
index 9afb11d089fe..3cdef043760f 100644
--- a/arch/arm/mm/proc-sa1100.S
+++ b/arch/arm/mm/proc-sa1100.S
@@ -238,6 +238,7 @@ ENTRY(sa1100_processor_functions)
 	.word	cpu_sa1100_dcache_clean_area
 	.word	cpu_sa1100_switch_mm
 	.word	cpu_sa1100_set_pte_ext
+	.word	pabort_noifar
 	.size	sa1100_processor_functions, . - sa1100_processor_functions
 
 	.section ".rodata"
diff --git a/arch/arm/mm/proc-v6.S b/arch/arm/mm/proc-v6.S
index eb42e5b94863..2162a692d99a 100644
--- a/arch/arm/mm/proc-v6.S
+++ b/arch/arm/mm/proc-v6.S
@@ -240,6 +240,7 @@ ENTRY(v6_processor_functions)
 	.word	cpu_v6_dcache_clean_area
 	.word	cpu_v6_switch_mm
 	.word	cpu_v6_set_pte_ext
+	.word	pabort_noifar
 	.size	v6_processor_functions, . - v6_processor_functions
 
 	.type	cpu_arch_name, #object
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index e0acc5ae6f6f..a1d7331cd64c 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -212,6 +212,7 @@ ENTRY(v7_processor_functions)
 	.word	cpu_v7_dcache_clean_area
 	.word	cpu_v7_switch_mm
 	.word	cpu_v7_set_pte_ext
+	.word	pabort_ifar
 	.size	v7_processor_functions, . - v7_processor_functions
 
 	.type	cpu_arch_name, #object
diff --git a/arch/arm/mm/proc-xscale.S b/arch/arm/mm/proc-xscale.S
index 016690b9d564..1a6d89823dff 100644
--- a/arch/arm/mm/proc-xscale.S
+++ b/arch/arm/mm/proc-xscale.S
@@ -534,6 +534,7 @@ ENTRY(xscale_processor_functions)
 	.word	cpu_xscale_dcache_clean_area
 	.word	cpu_xscale_switch_mm
 	.word	cpu_xscale_set_pte_ext
+	.word	pabort_noifar
 	.size	xscale_processor_functions, . - xscale_processor_functions
 
 	.section ".rodata"