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drm/amdgpu: add JPEG common functions to amdgpu_jpeg 

They will be used for JPEG2.0 and later.

Signed-off-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Leo Liu 2019-11-08 13:12:05 -05:00 committed by Alex Deucher
parent 8d1b04a6a1
commit 2eb167293f
2 changed files with 86 additions and 0 deletions
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76
drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.c
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@ -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;

10
drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.h
View File

@ -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);