/*
 * 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 "soc15d.h"
#include "soc15_common.h"

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, &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;
}