amdgpu_virt.c | Explore in Territory

/*
 * Copyright 2016 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/module.h>

#ifdef CONFIG_X86
#include <asm/hypervisor.h>
#endif

#include <drm/drm_drv.h>
#include <xen/xen.h>

#include "amdgpu.h"
#include "amdgpu_ras.h"
#include "amdgpu_reset.h"
#include "vi.h"
#include "soc15.h"
#include "nv.h"

#define POPULATE_UCODE_INFO(vf2pf_info, ucode, ver) …

bool amdgpu_virt_mmio_blocked(struct amdgpu_device *adev)
{ … }

void amdgpu_virt_init_setting(struct amdgpu_device *adev)
{ … }

/**
 * amdgpu_virt_request_full_gpu() - request full gpu access
 * @adev:	amdgpu device.
 * @init:	is driver init time.
 * When start to init/fini driver, first need to request full gpu access.
 * Return: Zero if request success, otherwise will return error.
 */
int amdgpu_virt_request_full_gpu(struct amdgpu_device *adev, bool init)
{ … }

/**
 * amdgpu_virt_release_full_gpu() - release full gpu access
 * @adev:	amdgpu device.
 * @init:	is driver init time.
 * When finishing driver init/fini, need to release full gpu access.
 * Return: Zero if release success, otherwise will returen error.
 */
int amdgpu_virt_release_full_gpu(struct amdgpu_device *adev, bool init)
{ … }

/**
 * amdgpu_virt_reset_gpu() - reset gpu
 * @adev:	amdgpu device.
 * Send reset command to GPU hypervisor to reset GPU that VM is using
 * Return: Zero if reset success, otherwise will return error.
 */
int amdgpu_virt_reset_gpu(struct amdgpu_device *adev)
{ … }

void amdgpu_virt_request_init_data(struct amdgpu_device *adev)
{ … }

/**
 * amdgpu_virt_ready_to_reset() - send ready to reset to host
 * @adev:	amdgpu device.
 * Send ready to reset message to GPU hypervisor to signal we have stopped GPU
 * activity and is ready for host FLR
 */
void amdgpu_virt_ready_to_reset(struct amdgpu_device *adev)
{ … }

/**
 * amdgpu_virt_wait_reset() - wait for reset gpu completed
 * @adev:	amdgpu device.
 * Wait for GPU reset completed.
 * Return: Zero if reset success, otherwise will return error.
 */
int amdgpu_virt_wait_reset(struct amdgpu_device *adev)
{ … }

/**
 * amdgpu_virt_alloc_mm_table() - alloc memory for mm table
 * @adev:	amdgpu device.
 * MM table is used by UVD and VCE for its initialization
 * Return: Zero if allocate success.
 */
int amdgpu_virt_alloc_mm_table(struct amdgpu_device *adev)
{ … }

/**
 * amdgpu_virt_free_mm_table() - free mm table memory
 * @adev:	amdgpu device.
 * Free MM table memory
 */
void amdgpu_virt_free_mm_table(struct amdgpu_device *adev)
{ … }

/**
 * amdgpu_virt_rcvd_ras_interrupt() - receive ras interrupt
 * @adev:	amdgpu device.
 * Check whether host sent RAS error message
 * Return: true if found, otherwise false
 */
bool amdgpu_virt_rcvd_ras_interrupt(struct amdgpu_device *adev)
{ … }


unsigned int amd_sriov_msg_checksum(void *obj,
				unsigned long obj_size,
				unsigned int key,
				unsigned int checksum)
{ … }

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

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

void amdgpu_virt_release_ras_err_handler_data(struct amdgpu_device *adev)
{ … }

static void amdgpu_virt_ras_add_bps(struct amdgpu_device *adev,
		struct eeprom_table_record *bps, int pages)
{ … }

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

static bool amdgpu_virt_ras_check_bad_page(struct amdgpu_device *adev,
		uint64_t retired_page)
{ … }

static void amdgpu_virt_add_bad_page(struct amdgpu_device *adev,
		uint64_t bp_block_offset, uint32_t bp_block_size)
{ … }

static int amdgpu_virt_read_pf2vf_data(struct amdgpu_device *adev)
{ … }

static void amdgpu_virt_populate_vf2pf_ucode_info(struct amdgpu_device *adev)
{ … }

static int amdgpu_virt_write_vf2pf_data(struct amdgpu_device *adev)
{ … }

static void amdgpu_virt_update_vf2pf_work_item(struct work_struct *work)
{ … }

void amdgpu_virt_fini_data_exchange(struct amdgpu_device *adev)
{ … }

void amdgpu_virt_init_data_exchange(struct amdgpu_device *adev)
{ … }


void amdgpu_virt_exchange_data(struct amdgpu_device *adev)
{ … }

void amdgpu_detect_virtualization(struct amdgpu_device *adev)
{ … }

static bool amdgpu_virt_access_debugfs_is_mmio(struct amdgpu_device *adev)
{ … }

static bool amdgpu_virt_access_debugfs_is_kiq(struct amdgpu_device *adev)
{ … }

int amdgpu_virt_enable_access_debugfs(struct amdgpu_device *adev)
{ … }

void amdgpu_virt_disable_access_debugfs(struct amdgpu_device *adev)
{ … }

enum amdgpu_sriov_vf_mode amdgpu_virt_get_sriov_vf_mode(struct amdgpu_device *adev)
{ … }

void amdgpu_virt_post_reset(struct amdgpu_device *adev)
{ … }

bool amdgpu_virt_fw_load_skip_check(struct amdgpu_device *adev, uint32_t ucode_id)
{ … }

void amdgpu_virt_update_sriov_video_codec(struct amdgpu_device *adev,
			struct amdgpu_video_codec_info *encode, uint32_t encode_array_size,
			struct amdgpu_video_codec_info *decode, uint32_t decode_array_size)
{ … }

bool amdgpu_virt_get_rlcg_reg_access_flag(struct amdgpu_device *adev,
						 u32 acc_flags, u32 hwip,
						 bool write, u32 *rlcg_flag)
{ … }

u32 amdgpu_virt_rlcg_reg_rw(struct amdgpu_device *adev, u32 offset, u32 v, u32 flag, u32 xcc_id)
{ … }

void amdgpu_sriov_wreg(struct amdgpu_device *adev,
		       u32 offset, u32 value,
		       u32 acc_flags, u32 hwip, u32 xcc_id)
{ … }

u32 amdgpu_sriov_rreg(struct amdgpu_device *adev,
		      u32 offset, u32 acc_flags, u32 hwip, u32 xcc_id)
{ … }

bool amdgpu_sriov_xnack_support(struct amdgpu_device *adev)
{ … }
linux/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
