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-rw-r--r--arch/arm/include/asm/cputype.h25
-rw-r--r--arch/arm/include/asm/hardware/cache-l2x0.h2
-rw-r--r--arch/arm/include/asm/processor.h1
-rw-r--r--arch/arm/include/asm/ptrace.h17
-rw-r--r--arch/arm/include/asm/tlbflush.h26
5 files changed, 69 insertions, 2 deletions
diff --git a/arch/arm/include/asm/cputype.h b/arch/arm/include/asm/cputype.h
index 7b9d27e749b..b3e656c6fb7 100644
--- a/arch/arm/include/asm/cputype.h
+++ b/arch/arm/include/asm/cputype.h
@@ -8,6 +8,21 @@
#define CPUID_TCM 2
#define CPUID_TLBTYPE 3
+#define CPUID_EXT_PFR0 "c1, 0"
+#define CPUID_EXT_PFR1 "c1, 1"
+#define CPUID_EXT_DFR0 "c1, 2"
+#define CPUID_EXT_AFR0 "c1, 3"
+#define CPUID_EXT_MMFR0 "c1, 4"
+#define CPUID_EXT_MMFR1 "c1, 5"
+#define CPUID_EXT_MMFR2 "c1, 6"
+#define CPUID_EXT_MMFR3 "c1, 7"
+#define CPUID_EXT_ISAR0 "c2, 0"
+#define CPUID_EXT_ISAR1 "c2, 1"
+#define CPUID_EXT_ISAR2 "c2, 2"
+#define CPUID_EXT_ISAR3 "c2, 3"
+#define CPUID_EXT_ISAR4 "c2, 4"
+#define CPUID_EXT_ISAR5 "c2, 5"
+
#ifdef CONFIG_CPU_CP15
#define read_cpuid(reg) \
({ \
@@ -18,9 +33,19 @@
: "cc"); \
__val; \
})
+#define read_cpuid_ext(ext_reg) \
+ ({ \
+ unsigned int __val; \
+ asm("mrc p15, 0, %0, c0, " ext_reg \
+ : "=r" (__val) \
+ : \
+ : "cc"); \
+ __val; \
+ })
#else
extern unsigned int processor_id;
#define read_cpuid(reg) (processor_id)
+#define read_cpuid_ext(reg) 0
#endif
/*
diff --git a/arch/arm/include/asm/hardware/cache-l2x0.h b/arch/arm/include/asm/hardware/cache-l2x0.h
index 64f2252a25c..cdb9022716f 100644
--- a/arch/arm/include/asm/hardware/cache-l2x0.h
+++ b/arch/arm/include/asm/hardware/cache-l2x0.h
@@ -24,6 +24,8 @@
#define L2X0_CACHE_TYPE 0x004
#define L2X0_CTRL 0x100
#define L2X0_AUX_CTRL 0x104
+#define L2X0_TAG_LATENCY_CTRL 0x108
+#define L2X0_DATA_LATENCY_CTRL 0x10C
#define L2X0_EVENT_CNT_CTRL 0x200
#define L2X0_EVENT_CNT1_CFG 0x204
#define L2X0_EVENT_CNT0_CFG 0x208
diff --git a/arch/arm/include/asm/processor.h b/arch/arm/include/asm/processor.h
index 1845892260e..6a89567ffc5 100644
--- a/arch/arm/include/asm/processor.h
+++ b/arch/arm/include/asm/processor.h
@@ -71,6 +71,7 @@ struct thread_struct {
regs->ARM_cpsr = USR26_MODE; \
if (elf_hwcap & HWCAP_THUMB && pc & 1) \
regs->ARM_cpsr |= PSR_T_BIT; \
+ regs->ARM_cpsr |= PSR_ENDSTATE; \
regs->ARM_pc = pc & ~1; /* pc */ \
regs->ARM_sp = sp; /* sp */ \
regs->ARM_r2 = stack[2]; /* r2 (envp) */ \
diff --git a/arch/arm/include/asm/ptrace.h b/arch/arm/include/asm/ptrace.h
index 236a06b9b7c..67b833c9b6b 100644
--- a/arch/arm/include/asm/ptrace.h
+++ b/arch/arm/include/asm/ptrace.h
@@ -50,6 +50,7 @@
#define PSR_F_BIT 0x00000040
#define PSR_I_BIT 0x00000080
#define PSR_A_BIT 0x00000100
+#define PSR_E_BIT 0x00000200
#define PSR_J_BIT 0x01000000
#define PSR_Q_BIT 0x08000000
#define PSR_V_BIT 0x10000000
@@ -65,6 +66,22 @@
#define PSR_x 0x0000ff00 /* Extension */
#define PSR_c 0x000000ff /* Control */
+/*
+ * ARMv7 groups of APSR bits
+ */
+#define PSR_ISET_MASK 0x01000010 /* ISA state (J, T) mask */
+#define PSR_IT_MASK 0x0600fc00 /* If-Then execution state mask */
+#define PSR_ENDIAN_MASK 0x00000200 /* Endianness state mask */
+
+/*
+ * Default endianness state
+ */
+#ifdef CONFIG_CPU_ENDIAN_BE8
+#define PSR_ENDSTATE PSR_E_BIT
+#else
+#define PSR_ENDSTATE 0
+#endif
+
#ifndef __ASSEMBLY__
/*
diff --git a/arch/arm/include/asm/tlbflush.h b/arch/arm/include/asm/tlbflush.h
index a62218013c7..c964f3fc3bc 100644
--- a/arch/arm/include/asm/tlbflush.h
+++ b/arch/arm/include/asm/tlbflush.h
@@ -40,6 +40,12 @@
#define TLB_V6_I_ASID (1 << 18)
#define TLB_BTB (1 << 28)
+
+/* Unified Inner Shareable TLB operations (ARMv7 MP extensions) */
+#define TLB_V7_UIS_PAGE (1 << 19)
+#define TLB_V7_UIS_FULL (1 << 20)
+#define TLB_V7_UIS_ASID (1 << 21)
+
#define TLB_L2CLEAN_FR (1 << 29) /* Feroceon */
#define TLB_DCLEAN (1 << 30)
#define TLB_WB (1 << 31)
@@ -176,9 +182,17 @@
# define v6wbi_always_flags (-1UL)
#endif
+#ifdef CONFIG_SMP
+#define v7wbi_tlb_flags (TLB_WB | TLB_DCLEAN | TLB_BTB | \
+ TLB_V7_UIS_FULL | TLB_V7_UIS_PAGE | TLB_V7_UIS_ASID)
+#else
+#define v7wbi_tlb_flags (TLB_WB | TLB_DCLEAN | TLB_BTB | \
+ TLB_V6_U_FULL | TLB_V6_U_PAGE | TLB_V6_U_ASID)
+#endif
+
#ifdef CONFIG_CPU_TLB_V7
-# define v7wbi_possible_flags v6wbi_tlb_flags
-# define v7wbi_always_flags v6wbi_tlb_flags
+# define v7wbi_possible_flags v7wbi_tlb_flags
+# define v7wbi_always_flags v7wbi_tlb_flags
# ifdef _TLB
# define MULTI_TLB 1
# else
@@ -316,6 +330,8 @@ static inline void local_flush_tlb_all(void)
asm("mcr p15, 0, %0, c8, c6, 0" : : "r" (zero) : "cc");
if (tlb_flag(TLB_V4_I_FULL | TLB_V6_I_FULL))
asm("mcr p15, 0, %0, c8, c5, 0" : : "r" (zero) : "cc");
+ if (tlb_flag(TLB_V7_UIS_FULL))
+ asm("mcr p15, 0, %0, c8, c3, 0" : : "r" (zero) : "cc");
if (tlb_flag(TLB_BTB)) {
/* flush the branch target cache */
@@ -351,6 +367,8 @@ static inline void local_flush_tlb_mm(struct mm_struct *mm)
asm("mcr p15, 0, %0, c8, c6, 2" : : "r" (asid) : "cc");
if (tlb_flag(TLB_V6_I_ASID))
asm("mcr p15, 0, %0, c8, c5, 2" : : "r" (asid) : "cc");
+ if (tlb_flag(TLB_V7_UIS_ASID))
+ asm("mcr p15, 0, %0, c8, c3, 2" : : "r" (asid) : "cc");
if (tlb_flag(TLB_BTB)) {
/* flush the branch target cache */
@@ -389,6 +407,8 @@ local_flush_tlb_page(struct vm_area_struct *vma, unsigned long uaddr)
asm("mcr p15, 0, %0, c8, c6, 1" : : "r" (uaddr) : "cc");
if (tlb_flag(TLB_V6_I_PAGE))
asm("mcr p15, 0, %0, c8, c5, 1" : : "r" (uaddr) : "cc");
+ if (tlb_flag(TLB_V7_UIS_PAGE))
+ asm("mcr p15, 0, %0, c8, c3, 1" : : "r" (uaddr) : "cc");
if (tlb_flag(TLB_BTB)) {
/* flush the branch target cache */
@@ -424,6 +444,8 @@ static inline void local_flush_tlb_kernel_page(unsigned long kaddr)
asm("mcr p15, 0, %0, c8, c6, 1" : : "r" (kaddr) : "cc");
if (tlb_flag(TLB_V6_I_PAGE))
asm("mcr p15, 0, %0, c8, c5, 1" : : "r" (kaddr) : "cc");
+ if (tlb_flag(TLB_V7_UIS_PAGE))
+ asm("mcr p15, 0, %0, c8, c3, 1" : : "r" (kaddr) : "cc");
if (tlb_flag(TLB_BTB)) {
/* flush the branch target cache */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 12:42:19 +0000