So we can schedule work from interrupts. This might include
long tasks or things that could sleep.
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h | 2 ++
drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 15 +++++++++++++++
2 files changed, 17 insertions(+)
diff --git a/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h
index c0287c3049cc..b039cc25c855 100644
--- a/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h
@@ -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;
@@ -571,6 +572,7 @@ 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 {
diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index 6af262e4b047..e4699b71dc49 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -787,6 +787,19 @@ 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;
@@ -809,6 +822,7 @@ 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;
@@ -1207,6 +1221,7 @@ 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) {
--
2.25.4
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