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Documentation. Fixed mask defines.

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This commit is contained in:
Thomas Doerfler
2010-04-09 12:30:39 +00:00
parent bdac0eed0c
commit 5e657e2363
2 changed files with 205 additions and 149 deletions
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4
c/src/lib/libcpu/arm/ChangeLog
View File

@@ -1,3 +1,7 @@
2010-04-08 Sebastian Huber <sebastian.huber@embedded-brains.de>
* shared/include/arm-cp15.h: Documentation. Fixed mask defines.
2010-03-03 Sebastian Huber <sebastian.huber@embedded-brains.de>
* shared/include/cache.h: Fixed _CPU_cache_disable_data().

350
c/src/lib/libcpu/arm/shared/include/arm-cp15.h
View File

@@ -1,13 +1,13 @@
/**
* @file
*
* @ingroup arm
* @ingroup ScoreCPUARMCP15
*
* @brief ARM co-processor 15 (CP15) API.
*/
/*
* Copyright (c) 2009
* Copyright (c) 2009, 2010
* embedded brains GmbH
* Obere Lagerstr. 30
* D-82178 Puchheim
@@ -28,14 +28,36 @@
extern "C" {
#endif /* __cplusplus */
#define ARM_CP15_CACHE_PREPARE_MVA(mva) \
((const void *) (((uint32_t) (mva)) & ~0x1fU))
#define ARM_CP15_TLB_PREPARE_MVA(mva) \
((const void *) (((uint32_t) (mva)) & ~0x3fU))
/**
* @defgroup ScoreCPUARMCP15 ARM Co-Processor 15 Support
*
* @ingroup ScoreCPUARM
*
* @brief ARM co-processor 15 (CP15) support.
*
* @{
*/
/**
* @name MMU Defines
*
* @{
*/
#define ARM_MMU_SECT_BASE_SHIFT 20
#define ARM_MMU_SECT_BASE_MASK 0xfffU
#define ARM_MMU_SECT_BASE_MASK (0xfffU << ARM_MMU_SECT_BASE_SHIFT)
#define ARM_MMU_SECT_DOMAIN_SHIFT 5
#define ARM_MMU_SECT_DOMAIN_MASK 0xfU
#define ARM_MMU_SECT_DOMAIN_MASK (0xfU << ARM_MMU_SECT_DOMAIN_SHIFT)
#define ARM_MMU_SECT_AP_1 (1U << 11)
#define ARM_MMU_SECT_AP_0 (1U << 10)
#define ARM_MMU_SECT_AP_SHIFT 10
#define ARM_MMU_SECT_AP_MASK 0x3U
#define ARM_MMU_SECT_AP_MASK (0x3U << ARM_MMU_SECT_AP_SHIFT)
#define ARM_MMU_SECT_C (1U << 3)
#define ARM_MMU_SECT_B (1U << 2)
#define ARM_MMU_SECT_DEFAULT 0x12U
@@ -48,6 +70,40 @@ extern "C" {
#define ARM_MMU_TRANSLATION_TABLE_ENTRY_SIZE 4U
#define ARM_MMU_TRANSLATION_TABLE_ENTRY_COUNT 4096U
/** @} */
/**
* @name Control Register Defines
*
* @{
*/
#define ARM_CP15_CTRL_L4 (1U << 15)
#define ARM_CP15_CTRL_RR (1U << 14)
#define ARM_CP15_CTRL_V (1U << 13)
#define ARM_CP15_CTRL_I (1U << 12)
#define ARM_CP15_CTRL_R (1U << 9)
#define ARM_CP15_CTRL_S (1U << 8)
#define ARM_CP15_CTRL_B (1U << 7)
#define ARM_CP15_CTRL_C (1U << 2)
#define ARM_CP15_CTRL_A (1U << 1)
#define ARM_CP15_CTRL_M (1U << 0)
/** @} */
/**
* @name Domain Access Control Defines
*
* @{
*/
#define ARM_CP15_DAC_NO_ACCESS 0x0U
#define ARM_CP15_DAC_CLIENT 0x1U
#define ARM_CP15_DAC_MANAGER 0x3U
#define ARM_CP15_DAC_DOMAIN(index, val) ((val) << (2 * index))
/** @} */
static inline uint32_t arm_cp15_get_id_code(void)
{
ARM_SWITCH_REGISTERS;
@@ -63,21 +119,6 @@ static inline uint32_t arm_cp15_get_id_code(void)
return val;
}
static inline uint32_t arm_cp15_get_cache_type(void)
{
ARM_SWITCH_REGISTERS;
uint32_t val;
asm volatile (
ARM_SWITCH_TO_ARM
"mrc p15, 0, %[val], c0, c0, 1\n"
ARM_SWITCH_BACK
: [val] "=&r" (val) ARM_SWITCH_ADDITIONAL_OUTPUT
);
return val;
}
static inline uint32_t arm_cp15_get_tcm_status(void)
{
ARM_SWITCH_REGISTERS;
@@ -93,17 +134,6 @@ static inline uint32_t arm_cp15_get_tcm_status(void)
return val;
}
#define ARM_CP15_CTRL_L4 (1U << 15)
#define ARM_CP15_CTRL_RR (1U << 14)
#define ARM_CP15_CTRL_V (1U << 13)
#define ARM_CP15_CTRL_I (1U << 12)
#define ARM_CP15_CTRL_R (1U << 9)
#define ARM_CP15_CTRL_S (1U << 8)
#define ARM_CP15_CTRL_B (1U << 7)
#define ARM_CP15_CTRL_C (1U << 2)
#define ARM_CP15_CTRL_A (1U << 1)
#define ARM_CP15_CTRL_M (1U << 0)
static inline uint32_t arm_cp15_get_control(void)
{
ARM_SWITCH_REGISTERS;
@@ -135,6 +165,12 @@ static inline void arm_cp15_set_control(uint32_t val)
);
}
/**
* @name MMU Functions
*
* @{
*/
static inline uint32_t *arm_cp15_get_translation_table_base(void)
{
ARM_SWITCH_REGISTERS;
@@ -163,11 +199,6 @@ static inline void arm_cp15_set_translation_table_base(uint32_t *base)
);
}
#define ARM_CP15_DAC_NO_ACCESS 0x0U
#define ARM_CP15_DAC_CLIENT 0x1U
#define ARM_CP15_DAC_MANAGER 0x3U
#define ARM_CP15_DAC_DOMAIN(index, val) ((val) << (2 * index))
static inline uint32_t arm_cp15_get_domain_access_control(void)
{
ARM_SWITCH_REGISTERS;
@@ -280,8 +311,137 @@ static inline void arm_cp15_set_fault_address(const void *mva)
);
}
#define ARM_CP15_CACHE_PREPARE_MVA(mva) \
((const void *) (((uint32_t) (mva)) & ~0x1fU))
static inline void arm_cp15_tlb_invalidate(void)
{
ARM_SWITCH_REGISTERS;
uint32_t sbz = 0;
asm volatile (
ARM_SWITCH_TO_ARM
"mcr p15, 0, %[sbz], c8, c7, 0\n"
ARM_SWITCH_BACK
: ARM_SWITCH_OUTPUT
: [sbz] "r" (sbz)
);
}
static inline void arm_cp15_tlb_invalidate_entry(const void *mva)
{
ARM_SWITCH_REGISTERS;
mva = ARM_CP15_TLB_PREPARE_MVA(mva);
asm volatile (
ARM_SWITCH_TO_ARM
"mcr p15, 0, %[mva], c8, c7, 1\n"
ARM_SWITCH_BACK
: ARM_SWITCH_OUTPUT
: [mva] "r" (mva)
);
}
static inline void arm_cp15_tlb_instruction_invalidate(void)
{
ARM_SWITCH_REGISTERS;
uint32_t sbz = 0;
asm volatile (
ARM_SWITCH_TO_ARM
"mcr p15, 0, %[sbz], c8, c5, 0\n"
ARM_SWITCH_BACK
: ARM_SWITCH_OUTPUT
: [sbz] "r" (sbz)
);
}
static inline void arm_cp15_tlb_instruction_invalidate_entry(const void *mva)
{
ARM_SWITCH_REGISTERS;
mva = ARM_CP15_TLB_PREPARE_MVA(mva);
asm volatile (
ARM_SWITCH_TO_ARM
"mcr p15, 0, %[mva], c8, c5, 1\n"
ARM_SWITCH_BACK
: ARM_SWITCH_OUTPUT
: [mva] "r" (mva)
);
}
static inline void arm_cp15_tlb_data_invalidate(void)
{
ARM_SWITCH_REGISTERS;
uint32_t sbz = 0;
asm volatile (
ARM_SWITCH_TO_ARM
"mcr p15, 0, %[sbz], c8, c6, 0\n"
ARM_SWITCH_BACK
: ARM_SWITCH_OUTPUT
: [sbz] "r" (sbz)
);
}
static inline void arm_cp15_tlb_data_invalidate_entry(const void *mva)
{
ARM_SWITCH_REGISTERS;
mva = ARM_CP15_TLB_PREPARE_MVA(mva);
asm volatile (
ARM_SWITCH_TO_ARM
"mcr p15, 0, %[mva], c8, c6, 1\n"
ARM_SWITCH_BACK
: ARM_SWITCH_OUTPUT
: [mva] "r" (mva)
);
}
static inline void arm_cp15_tlb_lockdown_entry(const void *mva)
{
uint32_t arm_switch_reg;
asm volatile (
ARM_SWITCH_TO_ARM
"add %[arm_switch_reg], pc, #16\n"
"mcr p15, 0, %[arm_switch_reg], c7, c13, 1\n"
"mcr p15, 0, %[mva], c8, c7, 1\n"
"mrc p15, 0, %[arm_switch_reg], c10, c0, 0\n"
"orr %[arm_switch_reg], #0x1\n"
"mcr p15, 0, %[arm_switch_reg], c10, c0, 0\n"
"ldr %[mva], [%[mva]]\n"
"mrc p15, 0, %[arm_switch_reg], c10, c0, 0\n"
"bic %[arm_switch_reg], #0x1\n"
"mcr p15, 0, %[arm_switch_reg], c10, c0, 0\n"
ARM_SWITCH_BACK
: [mva] "=r" (mva), [arm_switch_reg] "=&r" (arm_switch_reg)
: "[mva]" (mva)
);
}
/** @} */
/**
* @name Cache Functions
*
* @{
*/
static inline uint32_t arm_cp15_get_cache_type(void)
{
ARM_SWITCH_REGISTERS;
uint32_t val;
asm volatile (
ARM_SWITCH_TO_ARM
"mrc p15, 0, %[val], c0, c0, 1\n"
ARM_SWITCH_BACK
: [val] "=&r" (val) ARM_SWITCH_ADDITIONAL_OUTPUT
);
return val;
}
static inline void arm_cp15_cache_invalidate(void)
{
@@ -495,6 +655,8 @@ static inline void arm_cp15_data_cache_test_and_clean_and_invalidate(void)
);
}
/** @} */
static inline void arm_cp15_drain_write_buffer(void)
{
ARM_SWITCH_REGISTERS;
@@ -525,117 +687,7 @@ static inline void arm_cp15_wait_for_interrupt(void)
);
}
#define ARM_CP15_TLB_PREPARE_MVA(mva) \
((const void *) (((uint32_t) (mva)) & ~0x3fU))
static inline void arm_cp15_tlb_invalidate(void)
{
ARM_SWITCH_REGISTERS;
uint32_t sbz = 0;
asm volatile (
ARM_SWITCH_TO_ARM
"mcr p15, 0, %[sbz], c8, c7, 0\n"
ARM_SWITCH_BACK
: ARM_SWITCH_OUTPUT
: [sbz] "r" (sbz)
);
}
static inline void arm_cp15_tlb_invalidate_entry(const void *mva)
{
ARM_SWITCH_REGISTERS;
mva = ARM_CP15_TLB_PREPARE_MVA(mva);
asm volatile (
ARM_SWITCH_TO_ARM
"mcr p15, 0, %[mva], c8, c7, 1\n"
ARM_SWITCH_BACK
: ARM_SWITCH_OUTPUT
: [mva] "r" (mva)
);
}
static inline void arm_cp15_tlb_instruction_invalidate(void)
{
ARM_SWITCH_REGISTERS;
uint32_t sbz = 0;
asm volatile (
ARM_SWITCH_TO_ARM
"mcr p15, 0, %[sbz], c8, c5, 0\n"
ARM_SWITCH_BACK
: ARM_SWITCH_OUTPUT
: [sbz] "r" (sbz)
);
}
static inline void arm_cp15_tlb_instruction_invalidate_entry(const void *mva)
{
ARM_SWITCH_REGISTERS;
mva = ARM_CP15_TLB_PREPARE_MVA(mva);
asm volatile (
ARM_SWITCH_TO_ARM
"mcr p15, 0, %[mva], c8, c5, 1\n"
ARM_SWITCH_BACK
: ARM_SWITCH_OUTPUT
: [mva] "r" (mva)
);
}
static inline void arm_cp15_tlb_data_invalidate(void)
{
ARM_SWITCH_REGISTERS;
uint32_t sbz = 0;
asm volatile (
ARM_SWITCH_TO_ARM
"mcr p15, 0, %[sbz], c8, c6, 0\n"
ARM_SWITCH_BACK
: ARM_SWITCH_OUTPUT
: [sbz] "r" (sbz)
);
}
static inline void arm_cp15_tlb_data_invalidate_entry(const void *mva)
{
ARM_SWITCH_REGISTERS;
mva = ARM_CP15_TLB_PREPARE_MVA(mva);
asm volatile (
ARM_SWITCH_TO_ARM
"mcr p15, 0, %[mva], c8, c6, 1\n"
ARM_SWITCH_BACK
: ARM_SWITCH_OUTPUT
: [mva] "r" (mva)
);
}
static inline void arm_cp15_tlb_lockdown_entry(const void *mva)
{
uint32_t arm_switch_reg;
asm volatile (
ARM_SWITCH_TO_ARM
"add %[arm_switch_reg], pc, #16\n"
"mcr p15, 0, %[arm_switch_reg], c7, c13, 1\n"
"mcr p15, 0, %[mva], c8, c7, 1\n"
"mrc p15, 0, %[arm_switch_reg], c10, c0, 0\n"
"orr %[arm_switch_reg], #0x1\n"
"mcr p15, 0, %[arm_switch_reg], c10, c0, 0\n"
"ldr %[mva], [%[mva]]\n"
"mrc p15, 0, %[arm_switch_reg], c10, c0, 0\n"
"bic %[arm_switch_reg], #0x1\n"
"mcr p15, 0, %[arm_switch_reg], c10, c0, 0\n"
ARM_SWITCH_BACK
: [mva] "=r" (mva), [arm_switch_reg] "=&r" (arm_switch_reg)
: "[mva]" (mva)
);
}
/** @} */
#ifdef __cplusplus
}