linux/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c

/*
 * Copyright 2018 Advanced Micro Devices, Inc.
 *
 * 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, sublicense,
 * 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 above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
 *
 */

#include <linux/firmware.h>
#include "amdgpu.h"
#include "amdgpu_sdma.h"
#include "amdgpu_ras.h"

#define AMDGPU_CSA_SDMA_SIZE …
/* SDMA CSA reside in the 3rd page of CSA */
#define AMDGPU_CSA_SDMA_OFFSET …

/*
 * GPU SDMA IP block helpers function.
 */

struct amdgpu_sdma_instance *amdgpu_sdma_get_instance_from_ring(struct amdgpu_ring *ring)
{ … }

int amdgpu_sdma_get_index_from_ring(struct amdgpu_ring *ring, uint32_t *index)
{ … }

uint64_t amdgpu_sdma_get_csa_mc_addr(struct amdgpu_ring *ring,
				     unsigned int vmid)
{ … }

int amdgpu_sdma_ras_late_init(struct amdgpu_device *adev,
			      struct ras_common_if *ras_block)
{ … }

int amdgpu_sdma_process_ras_data_cb(struct amdgpu_device *adev,
		void *err_data,
		struct amdgpu_iv_entry *entry)
{ … }

int amdgpu_sdma_process_ecc_irq(struct amdgpu_device *adev,
				      struct amdgpu_irq_src *source,
				      struct amdgpu_iv_entry *entry)
{ … }

static int amdgpu_sdma_init_inst_ctx(struct amdgpu_sdma_instance *sdma_inst)
{ … }

void amdgpu_sdma_destroy_inst_ctx(struct amdgpu_device *adev,
				  bool duplicate)
{ … }

int amdgpu_sdma_init_microcode(struct amdgpu_device *adev,
			       u32 instance, bool duplicate)
{ … }

int amdgpu_sdma_ras_sw_init(struct amdgpu_device *adev)
{ … }