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/*
* Copyright 2019 Advanced Micro Devices, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
*/
#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);
mutex_init(&adev->jpeg.jpeg_pg_lock);
atomic_set(&adev->jpeg.total_submission_cnt, 0);
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);
}
mutex_destroy(&adev->jpeg.jpeg_pg_lock);
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 && !atomic_read(&adev->jpeg.total_submission_cnt))
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;
atomic_inc(&adev->jpeg.total_submission_cnt);
cancel_delayed_work_sync(&adev->jpeg.idle_work);
mutex_lock(&adev->jpeg.jpeg_pg_lock);
amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_JPEG,
AMD_PG_STATE_UNGATE);
mutex_unlock(&adev->jpeg.jpeg_pg_lock);
}
void amdgpu_jpeg_ring_end_use(struct amdgpu_ring *ring)
{
atomic_dec(&ring->adev->jpeg.total_submission_cnt);
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;
uint32_t tmp = 0;
unsigned i;
int r;
WREG32(adev->jpeg.inst[ring->me].external.jpeg_pitch, 0xCAFEDEAD);
r = amdgpu_ring_alloc(ring, 3);
if (r)
return r;
amdgpu_ring_write(ring, PACKET0(adev->jpeg.internal.jpeg_pitch, 0));
amdgpu_ring_write(ring, 0xDEADBEEF);
amdgpu_ring_commit(ring);
for (i = 0; i < adev->usec_timeout; i++) {
tmp = RREG32(adev->jpeg.inst[ring->me].external.jpeg_pitch);
if (tmp == 0xDEADBEEF)
break;
udelay(1);
}
if (i >= adev->usec_timeout)
r = -ETIMEDOUT;
return r;
}
static int amdgpu_jpeg_dec_set_reg(struct amdgpu_ring *ring, uint32_t handle,
struct dma_fence **fence)
{
struct amdgpu_device *adev = ring->adev;
struct amdgpu_job *job;
struct amdgpu_ib *ib;
struct dma_fence *f = NULL;
const unsigned ib_size_dw = 16;
int i, r;
r = amdgpu_job_alloc_with_ib(ring->adev, ib_size_dw * 4,
AMDGPU_IB_POOL_DIRECT, &job);
if (r)
return r;
ib = &job->ibs[0];
ib->ptr[0] = PACKETJ(adev->jpeg.internal.jpeg_pitch, 0, 0, PACKETJ_TYPE0);
ib->ptr[1] = 0xDEADBEEF;
for (i = 2; i < 16; i += 2) {
ib->ptr[i] = PACKETJ(0, 0, 0, PACKETJ_TYPE6);
ib->ptr[i+1] = 0;
}
ib->length_dw = 16;
r = amdgpu_job_submit_direct(job, ring, &f);
if (r)
goto err;
if (fence)
*fence = dma_fence_get(f);
dma_fence_put(f);
return 0;
err:
amdgpu_job_free(job);
return r;
}
int amdgpu_jpeg_dec_ring_test_ib(struct amdgpu_ring *ring, long timeout)
{
struct amdgpu_device *adev = ring->adev;
uint32_t tmp = 0;
unsigned i;
struct dma_fence *fence = NULL;
long r = 0;
r = amdgpu_jpeg_dec_set_reg(ring, 1, &fence);
if (r)
goto error;
r = dma_fence_wait_timeout(fence, false, timeout);
if (r == 0) {
r = -ETIMEDOUT;
goto error;
} else if (r < 0) {
goto error;
} else {
r = 0;
}
for (i = 0; i < adev->usec_timeout; i++) {
tmp = RREG32(adev->jpeg.inst[ring->me].external.jpeg_pitch);
if (tmp == 0xDEADBEEF)
break;
udelay(1);
}
if (i >= adev->usec_timeout)
r = -ETIMEDOUT;
dma_fence_put(fence);
error:
return r;
}
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