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

/*
 * Copyright 2014 Advanced Micro Devices, Inc.
 * Copyright 2008 Red Hat Inc.
 * Copyright 2009 Jerome Glisse.
 *
 * 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_gfx.h"
#include "amdgpu_rlc.h"

/**
 * amdgpu_gfx_rlc_enter_safe_mode - Set RLC into safe mode
 *
 * @adev: amdgpu_device pointer
 * @xcc_id: xcc accelerated compute core id
 *
 * Set RLC enter into safe mode if RLC is enabled and haven't in safe mode.
 */
void amdgpu_gfx_rlc_enter_safe_mode(struct amdgpu_device *adev, int xcc_id)
{ … }

/**
 * amdgpu_gfx_rlc_exit_safe_mode - Set RLC out of safe mode
 *
 * @adev: amdgpu_device pointer
 * @xcc_id: xcc accelerated compute core id
 *
 * Set RLC exit safe mode if RLC is enabled and have entered into safe mode.
 */
void amdgpu_gfx_rlc_exit_safe_mode(struct amdgpu_device *adev, int xcc_id)
{ … }

/**
 * amdgpu_gfx_rlc_init_sr - Init save restore block
 *
 * @adev: amdgpu_device pointer
 * @dws: the size of save restore block
 *
 * Allocate and setup value to save restore block of rlc.
 * Returns 0 on succeess or negative error code if allocate failed.
 */
int amdgpu_gfx_rlc_init_sr(struct amdgpu_device *adev, u32 dws)
{ … }

/**
 * amdgpu_gfx_rlc_init_csb - Init clear state block
 *
 * @adev: amdgpu_device pointer
 *
 * Allocate and setup value to clear state block of rlc.
 * Returns 0 on succeess or negative error code if allocate failed.
 */
int amdgpu_gfx_rlc_init_csb(struct amdgpu_device *adev)
{ … }

/**
 * amdgpu_gfx_rlc_init_cpt - Init cp table
 *
 * @adev: amdgpu_device pointer
 *
 * Allocate and setup value to cp table of rlc.
 * Returns 0 on succeess or negative error code if allocate failed.
 */
int amdgpu_gfx_rlc_init_cpt(struct amdgpu_device *adev)
{ … }

/**
 * amdgpu_gfx_rlc_setup_cp_table - setup cp the buffer of cp table
 *
 * @adev: amdgpu_device pointer
 *
 * Write cp firmware data into cp table.
 */
void amdgpu_gfx_rlc_setup_cp_table(struct amdgpu_device *adev)
{ … }

/**
 * amdgpu_gfx_rlc_fini - Free BO which used for RLC
 *
 * @adev: amdgpu_device pointer
 *
 * Free three BO which is used for rlc_save_restore_block, rlc_clear_state_block
 * and rlc_jump_table_block.
 */
void amdgpu_gfx_rlc_fini(struct amdgpu_device *adev)
{ … }

static int amdgpu_gfx_rlc_init_microcode_v2_0(struct amdgpu_device *adev)
{ … }

static void amdgpu_gfx_rlc_init_microcode_v2_1(struct amdgpu_device *adev)
{ … }

static void amdgpu_gfx_rlc_init_microcode_v2_2(struct amdgpu_device *adev)
{ … }

static void amdgpu_gfx_rlc_init_microcode_v2_3(struct amdgpu_device *adev)
{ … }

static void amdgpu_gfx_rlc_init_microcode_v2_4(struct amdgpu_device *adev)
{ … }

int amdgpu_gfx_rlc_init_microcode(struct amdgpu_device *adev,
				  uint16_t version_major,
				  uint16_t version_minor)
{ … }