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drm/amdgpu/swsmu: add interrupt work function

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So we can schedule work from interrupts.  This might include
long tasks or things that could sleep.

Fixes: e1188aacad ("drm/amdgpu/smu11: add support for SMU AC/DC interrupts")
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2020-10-01 09:03:37 -04:00
parent 346dbbb8f7
commit 1a8a763b21
2 changed files with 17 additions and 0 deletions
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2
drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h
View File

@ -453,6 +453,7 @@ struct smu_context
struct work_struct throttling_logging_work;
atomic64_t throttle_int_counter;
struct work_struct interrupt_work;
unsigned fan_max_rpm;
unsigned manual_fan_speed_rpm;
@ -601,6 +602,7 @@ struct pptable_funcs {
int (*deep_sleep_control)(struct smu_context *smu, bool enablement);
int (*get_fan_parameters)(struct smu_context *smu);
int (*post_init)(struct smu_context *smu);
void (*interrupt_work)(struct smu_context *smu);
};
typedef enum {

15
drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
View File

@ -780,6 +780,19 @@ static void smu_throttling_logging_work_fn(struct work_struct *work)
smu_log_thermal_throttling(smu);
}
static void smu_interrupt_work_fn(struct work_struct *work)
{
struct smu_context *smu = container_of(work, struct smu_context,
interrupt_work);
mutex_lock(&smu->mutex);
if (smu->ppt_funcs && smu->ppt_funcs->interrupt_work)
smu->ppt_funcs->interrupt_work(smu);
mutex_unlock(&smu->mutex);
}
static int smu_sw_init(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
@ -802,6 +815,7 @@ static int smu_sw_init(void *handle)
mutex_init(&smu->message_lock);
INIT_WORK(&smu->throttling_logging_work, smu_throttling_logging_work_fn);
INIT_WORK(&smu->interrupt_work, smu_interrupt_work_fn);
atomic64_set(&smu->throttle_int_counter, 0);
smu->watermarks_bitmap = 0;
smu->power_profile_mode = PP_SMC_POWER_PROFILE_BOOTUP_DEFAULT;
@ -1197,6 +1211,7 @@ static int smu_smc_hw_cleanup(struct smu_context *smu)
int ret = 0;
cancel_work_sync(&smu->throttling_logging_work);
cancel_work_sync(&smu->interrupt_work);
ret = smu_disable_thermal_alert(smu);
if (ret) {