path: root/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c

/*
 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
 * 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, 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 (including the next
 * paragraph) 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
 * VA LINUX SYSTEMS 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.
 */

#include <drm/drmP.h>
#include <drm/amdgpu_drm.h>
#include <drm/drm_gem.h>
#include "amdgpu_drv.h"

#include <drm/drm_pciids.h>
#include <linux/console.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <linux/vga_switcheroo.h>
#include <drm/drm_crtc_helper.h>

#include "amdgpu.h"
#include "amdgpu_irq.h"
#include "amdgpu_gem.h"

#include "amdgpu_amdkfd.h"

/*
 * KMS wrapper.
 * - 3.0.0 - initial driver
 * - 3.1.0 - allow reading more status registers (GRBM, SRBM, SDMA, CP)
 * - 3.2.0 - GFX8: Uses EOP_TC_WB_ACTION_EN, so UMDs don't have to do the same
 *           at the end of IBs.
 * - 3.3.0 - Add VM support for UVD on supported hardware.
 * - 3.4.0 - Add AMDGPU_INFO_NUM_EVICTIONS.
 * - 3.5.0 - Add support for new UVD_NO_OP register.
 * - 3.6.0 - kmd involves use CONTEXT_CONTROL in ring buffer.
 * - 3.7.0 - Add support for VCE clock list packet
 * - 3.8.0 - Add support raster config init in the kernel
 * - 3.9.0 - Add support for memory query info about VRAM and GTT.
 * - 3.10.0 - Add support for new fences ioctl, new gem ioctl flags
 * - 3.11.0 - Add support for sensor query info (clocks, temp, etc).
 * - 3.12.0 - Add query for double offchip LDS buffers
 * - 3.13.0 - Add PRT support
 * - 3.14.0 - Fix race in amdgpu_ctx_get_fence() and note new functionality
 * - 3.15.0 - Export more gpu info for gfx9
 * - 3.16.0 - Add reserved vmid support
 * - 3.17.0 - Add AMDGPU_NUM_VRAM_CPU_PAGE_FAULTS.
 * - 3.18.0 - Export gpu always on cu bitmap
 * - 3.19.0 - Add support for UVD MJPEG decode
 * - 3.20.0 - Add support for local BOs
 * - 3.21.0 - Add DRM_AMDGPU_FENCE_TO_HANDLE ioctl
 * - 3.22.0 - Add DRM_AMDGPU_SCHED ioctl
 * - 3.23.0 - Add query for VRAM lost counter
 * - 3.24.0 - Add high priority compute support for gfx9
 * - 3.25.0 - Add support for sensor query info (stable pstate sclk/mclk).
 * - 3.26.0 - GFX9: Process AMDGPU_IB_FLAG_TC_WB_NOT_INVALIDATE.
 * - 3.27.0 - Add new chunk to to AMDGPU_CS to enable BO_LIST creation.
 */
#define KMS_DRIVER_MAJOR	3
#define KMS_DRIVER_MINOR	27
#define KMS_DRIVER_PATCHLEVEL	0

int amdgpu_vram_limit = 0;
int amdgpu_vis_vram_limit = 0;
int amdgpu_gart_size = -1; /* auto */
int amdgpu_gtt_size = -1; /* auto */
int amdgpu_moverate = -1; /* auto */
int amdgpu_benchmarking = 0;
int amdgpu_testing = 0;
int amdgpu_audio = -1;
int amdgpu_disp_priority = 0;
int amdgpu_hw_i2c = 0;
int amdgpu_pcie_gen2 = -1;
int amdgpu_msi = -1;
int amdgpu_lockup_timeout = 10000;
int amdgpu_dpm = -1;
int amdgpu_fw_load_type = -1;
int amdgpu_aspm = -1;
int amdgpu_runtime_pm = -1;
uint amdgpu_ip_block_mask = 0xffffffff;
int amdgpu_bapm = -1;
int amdgpu_deep_color = 0;
int amdgpu_vm_size = -1;
int amdgpu_vm_fragment_size = -1;
int amdgpu_vm_block_size = -1;
int amdgpu_vm_fault_stop = 0;
int amdgpu_vm_debug = 0;
int amdgpu_vram_page_split = 512;
int amdgpu_vm_update_mode = -1;
int amdgpu_exp_hw_support = 0;
int amdgpu_dc = -1;
int amdgpu_sched_jobs = 32;
int amdgpu_sched_hw_submission = 2;
uint amdgpu_pcie_gen_cap = 0;
uint amdgpu_pcie_lane_cap = 0;
uint amdgpu_cg_mask = 0xffffffff;
uint amdgpu_pg_mask = 0xffffffff;
uint amdgpu_sdma_phase_quantum = 32;
char *amdgpu_disable_cu = NULL;
char *amdgpu_virtual_display = NULL;
/* OverDrive(bit 14),gfxoff(bit 15),stutter mode(bit 17) disabled by default*/
uint amdgpu_pp_feature_mask = 0xfffd3fff;
int amdgpu_ngg = 0;
int amdgpu_prim_buf_per_se = 0;
int amdgpu_pos_buf_per_se = 0;
int amdgpu_cntl_sb_buf_per_se = 0;
int amdgpu_param_buf_per_se = 0;
int amdgpu_job_hang_limit = 0;
int amdgpu_lbpw = -1;
int amdgpu_compute_multipipe = -1;
int amdgpu_gpu_recovery = -1; /* auto */
int amdgpu_emu_mode = 0;
uint amdgpu_smu_memory_pool_size = 0;

/**
 * DOC: vramlimit (int)
 * Restrict the total amount of VRAM in MiB for testing.  The default is 0 (Use full VRAM).
 */
MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing, in megabytes");
module_param_named(vramlimit, amdgpu_vram_limit, int, 0600);

/**
 * DOC: vis_vramlimit (int)
 * Restrict the amount of CPU visible VRAM in MiB for testing.  The default is 0 (Use ful