RTOS/rtems
1
0
Fork 0
forked from Imagelibrary/rtems
Code Pull Requests Activity

bsps/arm: Add SMP support

Browse Source
This commit is contained in:
Sebastian Huber
2013-05-31 13:59:47 +02:00
parent f2f211c543
commit db42c079a0
28 changed files with 480 additions and 65 deletions
Download Patch File Download Diff File Expand all files Collapse all files

57
c/src/lib/libcpu/arm/shared/include/arm-cp15.h
View File

@@ -842,6 +842,63 @@ static inline void arm_cp15_wait_for_interrupt(void)
);
}
static inline uint32_t arm_cp15_get_multiprocessor_affinity(void)
{
ARM_SWITCH_REGISTERS;
uint32_t mpidr;
__asm__ volatile (
ARM_SWITCH_TO_ARM
"mrc p15, 0, %[mpidr], c0, c0, 5\n"
ARM_SWITCH_BACK
: [mpidr] "=&r" (mpidr) ARM_SWITCH_ADDITIONAL_OUTPUT
);
return mpidr & 0xff;
}
static inline uint32_t arm_cortex_a9_get_multiprocessor_cpu_id(void)
{
return arm_cp15_get_multiprocessor_affinity() & 0xff;
}
#define ARM_CORTEX_A9_ACTL_FW (1U << 0)
#define ARM_CORTEX_A9_ACTL_L2_PREFETCH_HINT_ENABLE (1U << 1)
#define ARM_CORTEX_A9_ACTL_L1_PREFETCH_ENABLE (1U << 2)
#define ARM_CORTEX_A9_ACTL_WRITE_FULL_LINE_OF_ZEROS_MODE (1U << 3)
#define ARM_CORTEX_A9_ACTL_SMP (1U << 6)
#define ARM_CORTEX_A9_ACTL_EXCL (1U << 7)
#define ARM_CORTEX_A9_ACTL_ALLOC_IN_ONE_WAY (1U << 8)
#define ARM_CORTEX_A9_ACTL_PARITY_ON (1U << 9)
static inline uint32_t arm_cp15_get_auxiliary_control(void)
{
ARM_SWITCH_REGISTERS;
uint32_t val;
__asm__ volatile (
ARM_SWITCH_TO_ARM
"mrc p15, 0, %[val], c1, c0, 1\n"
ARM_SWITCH_BACK
: [val] "=&r" (val) ARM_SWITCH_ADDITIONAL_OUTPUT
);
return val;
}
static inline void arm_cp15_set_auxiliary_control(uint32_t val)
{
ARM_SWITCH_REGISTERS;
__asm__ volatile (
ARM_SWITCH_TO_ARM
"mcr p15, 0, %[val], c1, c0, 1\n"
ARM_SWITCH_BACK
: ARM_SWITCH_OUTPUT
: [val] "r" (val)
);
}
/**
* @brief Sets the @a section_flags for the address range [@a begin, @a end).
*