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bsps/arm: Invalidate TLB in start.S

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Update #4202.
This commit is contained in:
Sebastian Huber
2020-12-21 10:08:30 +01:00
parent e164df5e33
commit 23d9223ad3
5 changed files with 10 additions and 15 deletions
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2
bsps/arm/raspberrypi/start/bspsmp_init.c
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@@ -74,8 +74,6 @@ void rpi_start_rtems_on_secondary_processor(void)
(uint32_t *) bsp_translation_table_base (uint32_t *) bsp_translation_table_base
); );
arm_cp15_tlb_invalidate();
ctrl |= ARM_CP15_CTRL_I | ARM_CP15_CTRL_C | ARM_CP15_CTRL_M; ctrl |= ARM_CP15_CTRL_I | ARM_CP15_CTRL_C | ARM_CP15_CTRL_M;
ctrl &= ~ARM_CP15_CTRL_V; ctrl &= ~ARM_CP15_CTRL_V;
arm_cp15_set_control(ctrl); arm_cp15_set_control(ctrl);

3
bsps/arm/raspberrypi/start/bspstarthooks.c
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@@ -67,9 +67,6 @@ raspberrypi_mmu_config_table[] = {
void BSP_START_TEXT_SECTION bsp_start_hook_0(void) void BSP_START_TEXT_SECTION bsp_start_hook_0(void)
{ {
arm_cp15_tlb_invalidate();
_ARM_Instruction_synchronization_barrier();
/* Clear Translation Table Base Control Register */ /* Clear Translation Table Base Control Register */
arm_cp15_set_translation_table_base_control_register(0); arm_cp15_set_translation_table_base_control_register(0);

9
bsps/arm/shared/start/start.S
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@@ -432,7 +432,16 @@ _start:
*/ */
mov r0, #0 mov r0, #0
mcr p15, 0, r0, c7, c5, 0 mcr p15, 0, r0, c7, c5, 0
#if __ARM_ARCH_PROFILE == 'A'
/*
* Invalidate the TLB using ITLBIALL (Instruction TLB Invalidate All).
*/
mov r0, #0
mcr p15, 0, r0, c8, c7, 0
isb
#endif #endif
#endif /* (__ARM_ARCH >= 7 && __ARM_ARCH_PROFILE == 'A') || __ARM_ARCH >= 8 */
/* /*
* Invoke the start hook 0. * Invoke the start hook 0.

4
bsps/arm/xilinx-zynq/start/bspstarthooks.c
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@@ -31,12 +31,8 @@
#include <bsp/start.h> #include <bsp/start.h>
#include <bsp/arm-a9mpcore-start.h> #include <bsp/arm-a9mpcore-start.h>
#include <libcpu/arm-cp15.h>
BSP_START_TEXT_SECTION void bsp_start_hook_0(void) BSP_START_TEXT_SECTION void bsp_start_hook_0(void)
{ {
arm_cp15_tlb_invalidate();
_ARM_Instruction_synchronization_barrier()
arm_a9mpcore_start_hook_0(); arm_a9mpcore_start_hook_0();
} }

7
bsps/arm/xilinx-zynqmp/start/bspstarthooks.c
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@@ -30,17 +30,12 @@
* POSSIBILITY OF SUCH DAMAGE. * POSSIBILITY OF SUCH DAMAGE.
*/ */
#define ARM_CP15_TEXT_SECTION BSP_START_TEXT_SECTION
#include <bsp.h> #include <bsp.h>
#include <bsp/start.h> #include <bsp/start.h>
#include <libcpu/arm-cp15.h>
BSP_START_TEXT_SECTION void bsp_start_hook_0(void) BSP_START_TEXT_SECTION void bsp_start_hook_0(void)
{ {
arm_cp15_tlb_invalidate(); /* Nothing to do */
_ARM_Instruction_synchronization_barrier();
} }
BSP_START_TEXT_SECTION void bsp_start_hook_1(void) BSP_START_TEXT_SECTION void bsp_start_hook_1(void)