diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.c index d9a547d4d3b2..5727f00afc8e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.c @@ -26,9 +26,85 @@ #include "amdgpu.h" #include "amdgpu_jpeg.h" +#include "amdgpu_pm.h" #include "soc15d.h" #include "soc15_common.h" +#define JPEG_IDLE_TIMEOUT msecs_to_jiffies(1000) + +static void amdgpu_jpeg_idle_work_handler(struct work_struct *work); + +int amdgpu_jpeg_sw_init(struct amdgpu_device *adev) +{ + INIT_DELAYED_WORK(&adev->jpeg.idle_work, amdgpu_jpeg_idle_work_handler); + + return 0; +} + +int amdgpu_jpeg_sw_fini(struct amdgpu_device *adev) +{ + int i; + + cancel_delayed_work_sync(&adev->jpeg.idle_work); + + for (i = 0; i < adev->jpeg.num_jpeg_inst; ++i) { + if (adev->jpeg.harvest_config & (1 << i)) + continue; + + amdgpu_ring_fini(&adev->jpeg.inst[i].ring_dec); + } + + return 0; +} + +int amdgpu_jpeg_suspend(struct amdgpu_device *adev) +{ + cancel_delayed_work_sync(&adev->jpeg.idle_work); + + return 0; +} + +int amdgpu_jpeg_resume(struct amdgpu_device *adev) +{ + return 0; +} + +static void amdgpu_jpeg_idle_work_handler(struct work_struct *work) +{ + struct amdgpu_device *adev = + container_of(work, struct amdgpu_device, jpeg.idle_work.work); + unsigned int fences = 0; + unsigned int i; + + for (i = 0; i < adev->jpeg.num_jpeg_inst; ++i) { + if (adev->jpeg.harvest_config & (1 << i)) + continue; + + fences += amdgpu_fence_count_emitted(&adev->jpeg.inst[i].ring_dec); + } + + if (fences == 0) + amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_JPEG, + AMD_PG_STATE_GATE); + else + schedule_delayed_work(&adev->jpeg.idle_work, JPEG_IDLE_TIMEOUT); +} + +void amdgpu_jpeg_ring_begin_use(struct amdgpu_ring *ring) +{ + struct amdgpu_device *adev = ring->adev; + bool set_clocks = !cancel_delayed_work_sync(&adev->jpeg.idle_work); + + if (set_clocks) + amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_JPEG, + AMD_PG_STATE_UNGATE); +} + +void amdgpu_jpeg_ring_end_use(struct amdgpu_ring *ring) +{ + schedule_delayed_work(&ring->adev->jpeg.idle_work, JPEG_IDLE_TIMEOUT); +} + int amdgpu_jpeg_dec_ring_test_ring(struct amdgpu_ring *ring) { struct amdgpu_device *adev = ring->adev; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.h index a8d988c25f45..5e2e06ec13df 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.h @@ -41,8 +41,18 @@ struct amdgpu_jpeg { struct amdgpu_jpeg_inst inst[AMDGPU_MAX_JPEG_INSTANCES]; struct amdgpu_jpeg_reg internal; unsigned harvest_config; + struct delayed_work idle_work; + enum amd_powergating_state cur_state; }; +int amdgpu_jpeg_sw_init(struct amdgpu_device *adev); +int amdgpu_jpeg_sw_fini(struct amdgpu_device *adev); +int amdgpu_jpeg_suspend(struct amdgpu_device *adev); +int amdgpu_jpeg_resume(struct amdgpu_device *adev); + +void amdgpu_jpeg_ring_begin_use(struct amdgpu_ring *ring); +void amdgpu_jpeg_ring_end_use(struct amdgpu_ring *ring); + int amdgpu_jpeg_dec_ring_test_ring(struct amdgpu_ring *ring); int amdgpu_jpeg_dec_ring_test_ib(struct amdgpu_ring *ring, long timeout);