Commit 2eb16729 authored by Leo Liu's avatar Leo Liu Committed by Alex Deucher
Browse files

drm/amdgpu: add JPEG common functions to amdgpu_jpeg 



They will be used for JPEG2.0 and later.

Signed-off-by: default avatarLeo Liu <leo.liu@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 8d1b04a6

drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.c

+76 −0
Original line number Diff line number Diff line
@@ -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;

drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.h

+10 −0
Original line number Diff line number Diff line
@@ -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);