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Be a bit stricter about fences

This commit is contained in:
Palmer Dabbelt 2018-05-30 21:30:51 -07:00
parent d6a0023bab
commit 9d975bf8f0
2 changed files with 23 additions and 20 deletions
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41
src/target/riscv/riscv-013.c
View File

@ -1718,13 +1718,26 @@ static void write_to_buf(uint8_t *buffer, uint64_t value, unsigned size)
static int execute_fence(struct target *target)
{
struct riscv_program program;
riscv_program_init(&program, target);
riscv_program_fence(&program);
int result = riscv_program_exec(&program, target);
if (result != ERROR_OK)
LOG_ERROR("Unable to execute fence");
return result;
int old_hartid = riscv_current_hartid(target);
for (int i = 0; i < riscv_count_harts(target); ++i) {
if (!riscv_hart_enabled(target, i))
continue;
riscv_set_current_hartid(target, i);
struct riscv_program program;
riscv_program_init(&program, target);
riscv_program_fence_i(&program);
riscv_program_fence(&program);
int result = riscv_program_exec(&program, target);
if (result != ERROR_OK)
LOG_ERROR("Unable to execute fence");
}
riscv_set_current_hartid(target, old_hartid);
return ERROR_OK;
}
static void log_memory_access(target_addr_t address, uint64_t value,
@ -2899,19 +2912,7 @@ int riscv013_dmi_write_u64_bits(struct target *target)
static int maybe_execute_fence_i(struct target *target)
{
RISCV013_INFO(info);
RISCV_INFO(r);
if (info->progbufsize + r->impebreak >= 2) {
struct riscv_program program;
riscv_program_init(&program, target);
if (riscv_program_fence_i(&program) != ERROR_OK)
return ERROR_FAIL;
if (riscv_program_exec(&program, target) != ERROR_OK) {
LOG_ERROR("Failed to execute fence.i");
return ERROR_FAIL;
}
}
return ERROR_OK;
return execute_fence(target);
}
/* Helper Functions. */

2
src/target/riscv/riscv.c
View File

@ -499,6 +499,8 @@ static int add_trigger(struct target *target, struct trigger *trigger)
int riscv_add_breakpoint(struct target *target, struct breakpoint *breakpoint)
{
if (breakpoint->type == BKPT_SOFT) {
LOG_DEBUG("Adding software breakpoint at 0x%016lx", breakpoint->address);
if (target_read_memory(target, breakpoint->address, breakpoint->length, 1,
breakpoint->orig_instr) != ERROR_OK) {
LOG_ERROR("Failed to read original instruction at 0x%" TARGET_PRIxADDR,