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amdgpu_drv.c
2611 lines (2383 loc) · 82.2 KB
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amdgpu_drv.c
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/*
* 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/amdgpu_drm.h>
#include <drm/drm_aperture.h>
#include <drm/drm_drv.h>
#include <drm/drm_gem.h>
#include <drm/drm_vblank.h>
#include <drm/drm_managed.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_probe_helper.h>
#include <linux/mmu_notifier.h>
#include <linux/suspend.h>
#include <linux/cc_platform.h>
#include <linux/fb.h>
#include "amdgpu.h"
#include "amdgpu_irq.h"
#include "amdgpu_dma_buf.h"
#include "amdgpu_sched.h"
#include "amdgpu_fdinfo.h"
#include "amdgpu_amdkfd.h"
#include "amdgpu_ras.h"
#include "amdgpu_xgmi.h"
#include "amdgpu_reset.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.
* - 3.28.0 - Add AMDGPU_CHUNK_ID_SCHEDULED_DEPENDENCIES
* - 3.29.0 - Add AMDGPU_IB_FLAG_RESET_GDS_MAX_WAVE_ID
* - 3.30.0 - Add AMDGPU_SCHED_OP_CONTEXT_PRIORITY_OVERRIDE.
* - 3.31.0 - Add support for per-flip tiling attribute changes with DC
* - 3.32.0 - Add syncobj timeline support to AMDGPU_CS.
* - 3.33.0 - Fixes for GDS ENOMEM failures in AMDGPU_CS.
* - 3.34.0 - Non-DC can flip correctly between buffers with different pitches
* - 3.35.0 - Add drm_amdgpu_info_device::tcc_disabled_mask
* - 3.36.0 - Allow reading more status registers on si/cik
* - 3.37.0 - L2 is invalidated before SDMA IBs, needed for correctness
* - 3.38.0 - Add AMDGPU_IB_FLAG_EMIT_MEM_SYNC
* - 3.39.0 - DMABUF implicit sync does a full pipeline sync
* - 3.40.0 - Add AMDGPU_IDS_FLAGS_TMZ
* - 3.41.0 - Add video codec query
* - 3.42.0 - Add 16bpc fixed point display support
* - 3.43.0 - Add device hot plug/unplug support
* - 3.44.0 - DCN3 supports DCC independent block settings: !64B && 128B, 64B && 128B
*/
#define KMS_DRIVER_MAJOR 3
#define KMS_DRIVER_MINOR 44
#define KMS_DRIVER_PATCHLEVEL 0
int amdgpu_vram_limit;
int amdgpu_vis_vram_limit;
int amdgpu_gart_size = -1; /* auto */
int amdgpu_gtt_size = -1; /* auto */
int amdgpu_moverate = -1; /* auto */
int amdgpu_benchmarking;
int amdgpu_testing;
int amdgpu_audio = -1;
int amdgpu_disp_priority;
int amdgpu_hw_i2c;
int amdgpu_pcie_gen2 = -1;
int amdgpu_msi = -1;
char amdgpu_lockup_timeout[AMDGPU_MAX_TIMEOUT_PARAM_LENGTH];
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;
int amdgpu_vm_size = -1;
int amdgpu_vm_fragment_size = -1;
int amdgpu_vm_block_size = -1;
int amdgpu_vm_fault_stop;
int amdgpu_vm_debug;
int amdgpu_vm_update_mode = -1;
int amdgpu_exp_hw_support;
int amdgpu_dc = -1;
int amdgpu_sched_jobs = 32;
int amdgpu_sched_hw_submission = 2;
uint amdgpu_pcie_gen_cap;
uint amdgpu_pcie_lane_cap;
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) disabled by default
* GFX DCS(bit 19) disabled by default
*/
uint amdgpu_pp_feature_mask = 0xfff7bfff;
uint amdgpu_force_long_training;
int amdgpu_job_hang_limit;
int amdgpu_lbpw = -1;
int amdgpu_compute_multipipe = -1;
int amdgpu_gpu_recovery = -1; /* auto */
int amdgpu_emu_mode;
uint amdgpu_smu_memory_pool_size;
int amdgpu_smu_pptable_id = -1;
/*
* FBC (bit 0) disabled by default
* MULTI_MON_PP_MCLK_SWITCH (bit 1) enabled by default
* - With this, for multiple monitors in sync(e.g. with the same model),
* mclk switching will be allowed. And the mclk will be not foced to the
* highest. That helps saving some idle power.
* DISABLE_FRACTIONAL_PWM (bit 2) disabled by default
* PSR (bit 3) disabled by default
* EDP NO POWER SEQUENCING (bit 4) disabled by default
*/
uint amdgpu_dc_feature_mask = 2;
uint amdgpu_dc_debug_mask;
int amdgpu_async_gfx_ring = 1;
int amdgpu_mcbp;
int amdgpu_discovery = -1;
int amdgpu_mes;
int amdgpu_noretry = -1;
int amdgpu_force_asic_type = -1;
int amdgpu_tmz = -1; /* auto */
uint amdgpu_freesync_vid_mode;
int amdgpu_reset_method = -1; /* auto */
int amdgpu_num_kcq = -1;
int amdgpu_smartshift_bias;
static void amdgpu_drv_delayed_reset_work_handler(struct work_struct *work);
struct amdgpu_mgpu_info mgpu_info = {
.mutex = __MUTEX_INITIALIZER(mgpu_info.mutex),
.delayed_reset_work = __DELAYED_WORK_INITIALIZER(
mgpu_info.delayed_reset_work,
amdgpu_drv_delayed_reset_work_handler, 0),
};
int amdgpu_ras_enable = -1;
uint amdgpu_ras_mask = 0xffffffff;
int amdgpu_bad_page_threshold = -1;
struct amdgpu_watchdog_timer amdgpu_watchdog_timer = {
.timeout_fatal_disable = false,
.period = 0x0, /* default to 0x0 (timeout disable) */
};
/**
* 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 full CPU visible VRAM).
*/
MODULE_PARM_DESC(vis_vramlimit, "Restrict visible VRAM for testing, in megabytes");
module_param_named(vis_vramlimit, amdgpu_vis_vram_limit, int, 0444);
/**
* DOC: gartsize (uint)
* Restrict the size of GART in Mib (32, 64, etc.) for testing. The default is -1 (The size depends on asic).
*/
MODULE_PARM_DESC(gartsize, "Size of GART to setup in megabytes (32, 64, etc., -1=auto)");
module_param_named(gartsize, amdgpu_gart_size, uint, 0600);
/**
* DOC: gttsize (int)
* Restrict the size of GTT domain in MiB for testing. The default is -1 (It's VRAM size if 3GB < VRAM < 3/4 RAM,
* otherwise 3/4 RAM size).
*/
MODULE_PARM_DESC(gttsize, "Size of the GTT domain in megabytes (-1 = auto)");
module_param_named(gttsize, amdgpu_gtt_size, int, 0600);
/**
* DOC: moverate (int)
* Set maximum buffer migration rate in MB/s. The default is -1 (8 MB/s).
*/
MODULE_PARM_DESC(moverate, "Maximum buffer migration rate in MB/s. (32, 64, etc., -1=auto, 0=1=disabled)");
module_param_named(moverate, amdgpu_moverate, int, 0600);
/**
* DOC: benchmark (int)
* Run benchmarks. The default is 0 (Skip benchmarks).
*/
MODULE_PARM_DESC(benchmark, "Run benchmark");
module_param_named(benchmark, amdgpu_benchmarking, int, 0444);
/**
* DOC: test (int)
* Test BO GTT->VRAM and VRAM->GTT GPU copies. The default is 0 (Skip test, only set 1 to run test).
*/
MODULE_PARM_DESC(test, "Run tests");
module_param_named(test, amdgpu_testing, int, 0444);
/**
* DOC: audio (int)
* Set HDMI/DPAudio. Only affects non-DC display handling. The default is -1 (Enabled), set 0 to disabled it.
*/
MODULE_PARM_DESC(audio, "Audio enable (-1 = auto, 0 = disable, 1 = enable)");
module_param_named(audio, amdgpu_audio, int, 0444);
/**
* DOC: disp_priority (int)
* Set display Priority (1 = normal, 2 = high). Only affects non-DC display handling. The default is 0 (auto).
*/
MODULE_PARM_DESC(disp_priority, "Display Priority (0 = auto, 1 = normal, 2 = high)");
module_param_named(disp_priority, amdgpu_disp_priority, int, 0444);
/**
* DOC: hw_i2c (int)
* To enable hw i2c engine. Only affects non-DC display handling. The default is 0 (Disabled).
*/
MODULE_PARM_DESC(hw_i2c, "hw i2c engine enable (0 = disable)");
module_param_named(hw_i2c, amdgpu_hw_i2c, int, 0444);
/**
* DOC: pcie_gen2 (int)
* To disable PCIE Gen2/3 mode (0 = disable, 1 = enable). The default is -1 (auto, enabled).
*/
MODULE_PARM_DESC(pcie_gen2, "PCIE Gen2 mode (-1 = auto, 0 = disable, 1 = enable)");
module_param_named(pcie_gen2, amdgpu_pcie_gen2, int, 0444);
/**
* DOC: msi (int)
* To disable Message Signaled Interrupts (MSI) functionality (1 = enable, 0 = disable). The default is -1 (auto, enabled).
*/
MODULE_PARM_DESC(msi, "MSI support (1 = enable, 0 = disable, -1 = auto)");
module_param_named(msi, amdgpu_msi, int, 0444);
/**
* DOC: lockup_timeout (string)
* Set GPU scheduler timeout value in ms.
*
* The format can be [Non-Compute] or [GFX,Compute,SDMA,Video]. That is there can be one or
* multiple values specified. 0 and negative values are invalidated. They will be adjusted
* to the default timeout.
*
* - With one value specified, the setting will apply to all non-compute jobs.
* - With multiple values specified, the first one will be for GFX.
* The second one is for Compute. The third and fourth ones are
* for SDMA and Video.
*
* By default(with no lockup_timeout settings), the timeout for all non-compute(GFX, SDMA and Video)
* jobs is 10000. The timeout for compute is 60000.
*/
MODULE_PARM_DESC(lockup_timeout, "GPU lockup timeout in ms (default: for bare metal 10000 for non-compute jobs and 60000 for compute jobs; "
"for passthrough or sriov, 10000 for all jobs."
" 0: keep default value. negative: infinity timeout), "
"format: for bare metal [Non-Compute] or [GFX,Compute,SDMA,Video]; "
"for passthrough or sriov [all jobs] or [GFX,Compute,SDMA,Video].");
module_param_string(lockup_timeout, amdgpu_lockup_timeout, sizeof(amdgpu_lockup_timeout), 0444);
/**
* DOC: dpm (int)
* Override for dynamic power management setting
* (0 = disable, 1 = enable)
* The default is -1 (auto).
*/
MODULE_PARM_DESC(dpm, "DPM support (1 = enable, 0 = disable, -1 = auto)");
module_param_named(dpm, amdgpu_dpm, int, 0444);
/**
* DOC: fw_load_type (int)
* Set different firmware loading type for debugging (0 = direct, 1 = SMU, 2 = PSP). The default is -1 (auto).
*/
MODULE_PARM_DESC(fw_load_type, "firmware loading type (0 = direct, 1 = SMU, 2 = PSP, -1 = auto)");
module_param_named(fw_load_type, amdgpu_fw_load_type, int, 0444);
/**
* DOC: aspm (int)
* To disable ASPM (1 = enable, 0 = disable). The default is -1 (auto, enabled).
*/
MODULE_PARM_DESC(aspm, "ASPM support (1 = enable, 0 = disable, -1 = auto)");
module_param_named(aspm, amdgpu_aspm, int, 0444);
/**
* DOC: runpm (int)
* Override for runtime power management control for dGPUs. The amdgpu driver can dynamically power down
* the dGPUs when they are idle if supported. The default is -1 (auto enable).
* Setting the value to 0 disables this functionality.
*/
MODULE_PARM_DESC(runpm, "PX runtime pm (2 = force enable with BAMACO, 1 = force enable with BACO, 0 = disable, -1 = auto)");
module_param_named(runpm, amdgpu_runtime_pm, int, 0444);
/**
* DOC: ip_block_mask (uint)
* Override what IP blocks are enabled on the GPU. Each GPU is a collection of IP blocks (gfx, display, video, etc.).
* Use this parameter to disable specific blocks. Note that the IP blocks do not have a fixed index. Some asics may not have
* some IPs or may include multiple instances of an IP so the ordering various from asic to asic. See the driver output in
* the kernel log for the list of IPs on the asic. The default is 0xffffffff (enable all blocks on a device).
*/
MODULE_PARM_DESC(ip_block_mask, "IP Block Mask (all blocks enabled (default))");
module_param_named(ip_block_mask, amdgpu_ip_block_mask, uint, 0444);
/**
* DOC: bapm (int)
* Bidirectional Application Power Management (BAPM) used to dynamically share TDP between CPU and GPU. Set value 0 to disable it.
* The default -1 (auto, enabled)
*/
MODULE_PARM_DESC(bapm, "BAPM support (1 = enable, 0 = disable, -1 = auto)");
module_param_named(bapm, amdgpu_bapm, int, 0444);
/**
* DOC: deep_color (int)
* Set 1 to enable Deep Color support. Only affects non-DC display handling. The default is 0 (disabled).
*/
MODULE_PARM_DESC(deep_color, "Deep Color support (1 = enable, 0 = disable (default))");
module_param_named(deep_color, amdgpu_deep_color, int, 0444);
/**
* DOC: vm_size (int)
* Override the size of the GPU's per client virtual address space in GiB. The default is -1 (automatic for each asic).
*/
MODULE_PARM_DESC(vm_size, "VM address space size in gigabytes (default 64GB)");
module_param_named(vm_size, amdgpu_vm_size, int, 0444);
/**
* DOC: vm_fragment_size (int)
* Override VM fragment size in bits (4, 5, etc. 4 = 64K, 9 = 2M). The default is -1 (automatic for each asic).
*/
MODULE_PARM_DESC(vm_fragment_size, "VM fragment size in bits (4, 5, etc. 4 = 64K (default), Max 9 = 2M)");
module_param_named(vm_fragment_size, amdgpu_vm_fragment_size, int, 0444);
/**
* DOC: vm_block_size (int)
* Override VM page table size in bits (default depending on vm_size and hw setup). The default is -1 (automatic for each asic).
*/
MODULE_PARM_DESC(vm_block_size, "VM page table size in bits (default depending on vm_size)");
module_param_named(vm_block_size, amdgpu_vm_block_size, int, 0444);
/**
* DOC: vm_fault_stop (int)
* Stop on VM fault for debugging (0 = never, 1 = print first, 2 = always). The default is 0 (No stop).
*/
MODULE_PARM_DESC(vm_fault_stop, "Stop on VM fault (0 = never (default), 1 = print first, 2 = always)");
module_param_named(vm_fault_stop, amdgpu_vm_fault_stop, int, 0444);
/**
* DOC: vm_debug (int)
* Debug VM handling (0 = disabled, 1 = enabled). The default is 0 (Disabled).
*/
MODULE_PARM_DESC(vm_debug, "Debug VM handling (0 = disabled (default), 1 = enabled)");
module_param_named(vm_debug, amdgpu_vm_debug, int, 0644);
/**
* DOC: vm_update_mode (int)
* Override VM update mode. VM updated by using CPU (0 = never, 1 = Graphics only, 2 = Compute only, 3 = Both). The default
* is -1 (Only in large BAR(LB) systems Compute VM tables will be updated by CPU, otherwise 0, never).
*/
MODULE_PARM_DESC(vm_update_mode, "VM update using CPU (0 = never (default except for large BAR(LB)), 1 = Graphics only, 2 = Compute only (default for LB), 3 = Both");
module_param_named(vm_update_mode, amdgpu_vm_update_mode, int, 0444);
/**
* DOC: exp_hw_support (int)
* Enable experimental hw support (1 = enable). The default is 0 (disabled).
*/
MODULE_PARM_DESC(exp_hw_support, "experimental hw support (1 = enable, 0 = disable (default))");
module_param_named(exp_hw_support, amdgpu_exp_hw_support, int, 0444);
/**
* DOC: dc (int)
* Disable/Enable Display Core driver for debugging (1 = enable, 0 = disable). The default is -1 (automatic for each asic).
*/
MODULE_PARM_DESC(dc, "Display Core driver (1 = enable, 0 = disable, -1 = auto (default))");
module_param_named(dc, amdgpu_dc, int, 0444);
/**
* DOC: sched_jobs (int)
* Override the max number of jobs supported in the sw queue. The default is 32.
*/
MODULE_PARM_DESC(sched_jobs, "the max number of jobs supported in the sw queue (default 32)");
module_param_named(sched_jobs, amdgpu_sched_jobs, int, 0444);
/**
* DOC: sched_hw_submission (int)
* Override the max number of HW submissions. The default is 2.
*/
MODULE_PARM_DESC(sched_hw_submission, "the max number of HW submissions (default 2)");
module_param_named(sched_hw_submission, amdgpu_sched_hw_submission, int, 0444);
/**
* DOC: ppfeaturemask (hexint)
* Override power features enabled. See enum PP_FEATURE_MASK in drivers/gpu/drm/amd/include/amd_shared.h.
* The default is the current set of stable power features.
*/
MODULE_PARM_DESC(ppfeaturemask, "all power features enabled (default))");
module_param_named(ppfeaturemask, amdgpu_pp_feature_mask, hexint, 0444);
/**
* DOC: forcelongtraining (uint)
* Force long memory training in resume.
* The default is zero, indicates short training in resume.
*/
MODULE_PARM_DESC(forcelongtraining, "force memory long training");
module_param_named(forcelongtraining, amdgpu_force_long_training, uint, 0444);
/**
* DOC: pcie_gen_cap (uint)
* Override PCIE gen speed capabilities. See the CAIL flags in drivers/gpu/drm/amd/include/amd_pcie.h.
* The default is 0 (automatic for each asic).
*/
MODULE_PARM_DESC(pcie_gen_cap, "PCIE Gen Caps (0: autodetect (default))");
module_param_named(pcie_gen_cap, amdgpu_pcie_gen_cap, uint, 0444);
/**
* DOC: pcie_lane_cap (uint)
* Override PCIE lanes capabilities. See the CAIL flags in drivers/gpu/drm/amd/include/amd_pcie.h.
* The default is 0 (automatic for each asic).
*/
MODULE_PARM_DESC(pcie_lane_cap, "PCIE Lane Caps (0: autodetect (default))");
module_param_named(pcie_lane_cap, amdgpu_pcie_lane_cap, uint, 0444);
/**
* DOC: cg_mask (uint)
* Override Clockgating features enabled on GPU (0 = disable clock gating). See the AMD_CG_SUPPORT flags in
* drivers/gpu/drm/amd/include/amd_shared.h. The default is 0xffffffff (all enabled).
*/
MODULE_PARM_DESC(cg_mask, "Clockgating flags mask (0 = disable clock gating)");
module_param_named(cg_mask, amdgpu_cg_mask, uint, 0444);
/**
* DOC: pg_mask (uint)
* Override Powergating features enabled on GPU (0 = disable power gating). See the AMD_PG_SUPPORT flags in
* drivers/gpu/drm/amd/include/amd_shared.h. The default is 0xffffffff (all enabled).
*/
MODULE_PARM_DESC(pg_mask, "Powergating flags mask (0 = disable power gating)");
module_param_named(pg_mask, amdgpu_pg_mask, uint, 0444);
/**
* DOC: sdma_phase_quantum (uint)
* Override SDMA context switch phase quantum (x 1K GPU clock cycles, 0 = no change). The default is 32.
*/
MODULE_PARM_DESC(sdma_phase_quantum, "SDMA context switch phase quantum (x 1K GPU clock cycles, 0 = no change (default 32))");
module_param_named(sdma_phase_quantum, amdgpu_sdma_phase_quantum, uint, 0444);
/**
* DOC: disable_cu (charp)
* Set to disable CUs (It's set like se.sh.cu,...). The default is NULL.
*/
MODULE_PARM_DESC(disable_cu, "Disable CUs (se.sh.cu,...)");
module_param_named(disable_cu, amdgpu_disable_cu, charp, 0444);
/**
* DOC: virtual_display (charp)
* Set to enable virtual display feature. This feature provides a virtual display hardware on headless boards
* or in virtualized environments. It will be set like xxxx:xx:xx.x,x;xxxx:xx:xx.x,x. It's the pci address of
* the device, plus the number of crtcs to expose. E.g., 0000:26:00.0,4 would enable 4 virtual crtcs on the pci
* device at 26:00.0. The default is NULL.
*/
MODULE_PARM_DESC(virtual_display,
"Enable virtual display feature (the virtual_display will be set like xxxx:xx:xx.x,x;xxxx:xx:xx.x,x)");
module_param_named(virtual_display, amdgpu_virtual_display, charp, 0444);
/**
* DOC: job_hang_limit (int)
* Set how much time allow a job hang and not drop it. The default is 0.
*/
MODULE_PARM_DESC(job_hang_limit, "how much time allow a job hang and not drop it (default 0)");
module_param_named(job_hang_limit, amdgpu_job_hang_limit, int ,0444);
/**
* DOC: lbpw (int)
* Override Load Balancing Per Watt (LBPW) support (1 = enable, 0 = disable). The default is -1 (auto, enabled).
*/
MODULE_PARM_DESC(lbpw, "Load Balancing Per Watt (LBPW) support (1 = enable, 0 = disable, -1 = auto)");
module_param_named(lbpw, amdgpu_lbpw, int, 0444);
MODULE_PARM_DESC(compute_multipipe, "Force compute queues to be spread across pipes (1 = enable, 0 = disable, -1 = auto)");
module_param_named(compute_multipipe, amdgpu_compute_multipipe, int, 0444);
/**
* DOC: gpu_recovery (int)
* Set to enable GPU recovery mechanism (1 = enable, 0 = disable). The default is -1 (auto, disabled except SRIOV).
*/
MODULE_PARM_DESC(gpu_recovery, "Enable GPU recovery mechanism, (2 = advanced tdr mode, 1 = enable, 0 = disable, -1 = auto)");
module_param_named(gpu_recovery, amdgpu_gpu_recovery, int, 0444);
/**
* DOC: emu_mode (int)
* Set value 1 to enable emulation mode. This is only needed when running on an emulator. The default is 0 (disabled).
*/
MODULE_PARM_DESC(emu_mode, "Emulation mode, (1 = enable, 0 = disable)");
module_param_named(emu_mode, amdgpu_emu_mode, int, 0444);
/**
* DOC: ras_enable (int)
* Enable RAS features on the GPU (0 = disable, 1 = enable, -1 = auto (default))
*/
MODULE_PARM_DESC(ras_enable, "Enable RAS features on the GPU (0 = disable, 1 = enable, -1 = auto (default))");
module_param_named(ras_enable, amdgpu_ras_enable, int, 0444);
/**
* DOC: ras_mask (uint)
* Mask of RAS features to enable (default 0xffffffff), only valid when ras_enable == 1
* See the flags in drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h
*/
MODULE_PARM_DESC(ras_mask, "Mask of RAS features to enable (default 0xffffffff), only valid when ras_enable == 1");
module_param_named(ras_mask, amdgpu_ras_mask, uint, 0444);
/**
* DOC: timeout_fatal_disable (bool)
* Disable Watchdog timeout fatal error event
*/
MODULE_PARM_DESC(timeout_fatal_disable, "disable watchdog timeout fatal error (false = default)");
module_param_named(timeout_fatal_disable, amdgpu_watchdog_timer.timeout_fatal_disable, bool, 0644);
/**
* DOC: timeout_period (uint)
* Modify the watchdog timeout max_cycles as (1 << period)
*/
MODULE_PARM_DESC(timeout_period, "watchdog timeout period (0 = timeout disabled, 1 ~ 0x23 = timeout maxcycles = (1 << period)");
module_param_named(timeout_period, amdgpu_watchdog_timer.period, uint, 0644);
/**
* DOC: si_support (int)
* Set SI support driver. This parameter works after set config CONFIG_DRM_AMDGPU_SI. For SI asic, when radeon driver is enabled,
* set value 0 to use radeon driver, while set value 1 to use amdgpu driver. The default is using radeon driver when it available,
* otherwise using amdgpu driver.
*/
#ifdef CONFIG_DRM_AMDGPU_SI
#if defined(CONFIG_DRM_RADEON) || defined(CONFIG_DRM_RADEON_MODULE)
int amdgpu_si_support = 0;
MODULE_PARM_DESC(si_support, "SI support (1 = enabled, 0 = disabled (default))");
#else
int amdgpu_si_support = 1;
MODULE_PARM_DESC(si_support, "SI support (1 = enabled (default), 0 = disabled)");
#endif
module_param_named(si_support, amdgpu_si_support, int, 0444);
#endif
/**
* DOC: cik_support (int)
* Set CIK support driver. This parameter works after set config CONFIG_DRM_AMDGPU_CIK. For CIK asic, when radeon driver is enabled,
* set value 0 to use radeon driver, while set value 1 to use amdgpu driver. The default is using radeon driver when it available,
* otherwise using amdgpu driver.
*/
#ifdef CONFIG_DRM_AMDGPU_CIK
#if defined(CONFIG_DRM_RADEON) || defined(CONFIG_DRM_RADEON_MODULE)
int amdgpu_cik_support = 0;
MODULE_PARM_DESC(cik_support, "CIK support (1 = enabled, 0 = disabled (default))");
#else
int amdgpu_cik_support = 1;
MODULE_PARM_DESC(cik_support, "CIK support (1 = enabled (default), 0 = disabled)");
#endif
module_param_named(cik_support, amdgpu_cik_support, int, 0444);
#endif
/**
* DOC: smu_memory_pool_size (uint)
* It is used to reserve gtt for smu debug usage, setting value 0 to disable it. The actual size is value * 256MiB.
* E.g. 0x1 = 256Mbyte, 0x2 = 512Mbyte, 0x4 = 1 Gbyte, 0x8 = 2GByte. The default is 0 (disabled).
*/
MODULE_PARM_DESC(smu_memory_pool_size,
"reserve gtt for smu debug usage, 0 = disable,"
"0x1 = 256Mbyte, 0x2 = 512Mbyte, 0x4 = 1 Gbyte, 0x8 = 2GByte");
module_param_named(smu_memory_pool_size, amdgpu_smu_memory_pool_size, uint, 0444);
/**
* DOC: async_gfx_ring (int)
* It is used to enable gfx rings that could be configured with different prioritites or equal priorities
*/
MODULE_PARM_DESC(async_gfx_ring,
"Asynchronous GFX rings that could be configured with either different priorities (HP3D ring and LP3D ring), or equal priorities (0 = disabled, 1 = enabled (default))");
module_param_named(async_gfx_ring, amdgpu_async_gfx_ring, int, 0444);
/**
* DOC: mcbp (int)
* It is used to enable mid command buffer preemption. (0 = disabled (default), 1 = enabled)
*/
MODULE_PARM_DESC(mcbp,
"Enable Mid-command buffer preemption (0 = disabled (default), 1 = enabled)");
module_param_named(mcbp, amdgpu_mcbp, int, 0444);
/**
* DOC: discovery (int)
* Allow driver to discover hardware IP information from IP Discovery table at the top of VRAM.
* (-1 = auto (default), 0 = disabled, 1 = enabled, 2 = use ip_discovery table from file)
*/
MODULE_PARM_DESC(discovery,
"Allow driver to discover hardware IPs from IP Discovery table at the top of VRAM");
module_param_named(discovery, amdgpu_discovery, int, 0444);
/**
* DOC: mes (int)
* Enable Micro Engine Scheduler. This is a new hw scheduling engine for gfx, sdma, and compute.
* (0 = disabled (default), 1 = enabled)
*/
MODULE_PARM_DESC(mes,
"Enable Micro Engine Scheduler (0 = disabled (default), 1 = enabled)");
module_param_named(mes, amdgpu_mes, int, 0444);
/**
* DOC: noretry (int)
* Disable XNACK retry in the SQ by default on GFXv9 hardware. On ASICs that
* do not support per-process XNACK this also disables retry page faults.
* (0 = retry enabled, 1 = retry disabled, -1 auto (default))
*/
MODULE_PARM_DESC(noretry,
"Disable retry faults (0 = retry enabled, 1 = retry disabled, -1 auto (default))");
module_param_named(noretry, amdgpu_noretry, int, 0644);
/**
* DOC: force_asic_type (int)
* A non negative value used to specify the asic type for all supported GPUs.
*/
MODULE_PARM_DESC(force_asic_type,
"A non negative value used to specify the asic type for all supported GPUs");
module_param_named(force_asic_type, amdgpu_force_asic_type, int, 0444);
#ifdef CONFIG_HSA_AMD
/**
* DOC: sched_policy (int)
* Set scheduling policy. Default is HWS(hardware scheduling) with over-subscription.
* Setting 1 disables over-subscription. Setting 2 disables HWS and statically
* assigns queues to HQDs.
*/
int sched_policy = KFD_SCHED_POLICY_HWS;
module_param(sched_policy, int, 0444);
MODULE_PARM_DESC(sched_policy,
"Scheduling policy (0 = HWS (Default), 1 = HWS without over-subscription, 2 = Non-HWS (Used for debugging only)");
/**
* DOC: hws_max_conc_proc (int)
* Maximum number of processes that HWS can schedule concurrently. The maximum is the
* number of VMIDs assigned to the HWS, which is also the default.
*/
int hws_max_conc_proc = 8;
module_param(hws_max_conc_proc, int, 0444);
MODULE_PARM_DESC(hws_max_conc_proc,
"Max # processes HWS can execute concurrently when sched_policy=0 (0 = no concurrency, #VMIDs for KFD = Maximum(default))");
/**
* DOC: cwsr_enable (int)
* CWSR(compute wave store and resume) allows the GPU to preempt shader execution in
* the middle of a compute wave. Default is 1 to enable this feature. Setting 0
* disables it.
*/
int cwsr_enable = 1;
module_param(cwsr_enable, int, 0444);
MODULE_PARM_DESC(cwsr_enable, "CWSR enable (0 = Off, 1 = On (Default))");
/**
* DOC: max_num_of_queues_per_device (int)
* Maximum number of queues per device. Valid setting is between 1 and 4096. Default
* is 4096.
*/
int max_num_of_queues_per_device = KFD_MAX_NUM_OF_QUEUES_PER_DEVICE_DEFAULT;
module_param(max_num_of_queues_per_device, int, 0444);
MODULE_PARM_DESC(max_num_of_queues_per_device,
"Maximum number of supported queues per device (1 = Minimum, 4096 = default)");
/**
* DOC: send_sigterm (int)
* Send sigterm to HSA process on unhandled exceptions. Default is not to send sigterm
* but just print errors on dmesg. Setting 1 enables sending sigterm.
*/
int send_sigterm;
module_param(send_sigterm, int, 0444);
MODULE_PARM_DESC(send_sigterm,
"Send sigterm to HSA process on unhandled exception (0 = disable, 1 = enable)");
/**
* DOC: debug_largebar (int)
* Set debug_largebar as 1 to enable simulating large-bar capability on non-large bar
* system. This limits the VRAM size reported to ROCm applications to the visible
* size, usually 256MB.
* Default value is 0, diabled.
*/
int debug_largebar;
module_param(debug_largebar, int, 0444);
MODULE_PARM_DESC(debug_largebar,
"Debug large-bar flag used to simulate large-bar capability on non-large bar machine (0 = disable, 1 = enable)");
/**
* DOC: ignore_crat (int)
* Ignore CRAT table during KFD initialization. By default, KFD uses the ACPI CRAT
* table to get information about AMD APUs. This option can serve as a workaround on
* systems with a broken CRAT table.
*
* Default is auto (according to asic type, iommu_v2, and crat table, to decide
* whehter use CRAT)
*/
int ignore_crat;
module_param(ignore_crat, int, 0444);
MODULE_PARM_DESC(ignore_crat,
"Ignore CRAT table during KFD initialization (0 = auto (default), 1 = ignore CRAT)");
/**
* DOC: halt_if_hws_hang (int)
* Halt if HWS hang is detected. Default value, 0, disables the halt on hang.
* Setting 1 enables halt on hang.
*/
int halt_if_hws_hang;
module_param(halt_if_hws_hang, int, 0644);
MODULE_PARM_DESC(halt_if_hws_hang, "Halt if HWS hang is detected (0 = off (default), 1 = on)");
/**
* DOC: hws_gws_support(bool)
* Assume that HWS supports GWS barriers regardless of what firmware version
* check says. Default value: false (rely on MEC2 firmware version check).
*/
bool hws_gws_support;
module_param(hws_gws_support, bool, 0444);
MODULE_PARM_DESC(hws_gws_support, "Assume MEC2 FW supports GWS barriers (false = rely on FW version check (Default), true = force supported)");
/**
* DOC: queue_preemption_timeout_ms (int)
* queue preemption timeout in ms (1 = Minimum, 9000 = default)
*/
int queue_preemption_timeout_ms = 9000;
module_param(queue_preemption_timeout_ms, int, 0644);
MODULE_PARM_DESC(queue_preemption_timeout_ms, "queue preemption timeout in ms (1 = Minimum, 9000 = default)");
/**
* DOC: debug_evictions(bool)
* Enable extra debug messages to help determine the cause of evictions
*/
bool debug_evictions;
module_param(debug_evictions, bool, 0644);
MODULE_PARM_DESC(debug_evictions, "enable eviction debug messages (false = default)");
/**
* DOC: no_system_mem_limit(bool)
* Disable system memory limit, to support multiple process shared memory
*/
bool no_system_mem_limit;
module_param(no_system_mem_limit, bool, 0644);
MODULE_PARM_DESC(no_system_mem_limit, "disable system memory limit (false = default)");
/**
* DOC: no_queue_eviction_on_vm_fault (int)
* If set, process queues will not be evicted on gpuvm fault. This is to keep the wavefront context for debugging (0 = queue eviction, 1 = no queue eviction). The default is 0 (queue eviction).
*/
int amdgpu_no_queue_eviction_on_vm_fault = 0;
MODULE_PARM_DESC(no_queue_eviction_on_vm_fault, "No queue eviction on VM fault (0 = queue eviction, 1 = no queue eviction)");
module_param_named(no_queue_eviction_on_vm_fault, amdgpu_no_queue_eviction_on_vm_fault, int, 0444);
#endif
/**
* DOC: dcfeaturemask (uint)
* Override display features enabled. See enum DC_FEATURE_MASK in drivers/gpu/drm/amd/include/amd_shared.h.
* The default is the current set of stable display features.
*/
MODULE_PARM_DESC(dcfeaturemask, "all stable DC features enabled (default))");
module_param_named(dcfeaturemask, amdgpu_dc_feature_mask, uint, 0444);
/**
* DOC: dcdebugmask (uint)
* Override display features enabled. See enum DC_DEBUG_MASK in drivers/gpu/drm/amd/include/amd_shared.h.
*/
MODULE_PARM_DESC(dcdebugmask, "all debug options disabled (default))");
module_param_named(dcdebugmask, amdgpu_dc_debug_mask, uint, 0444);
/**
* DOC: abmlevel (uint)
* Override the default ABM (Adaptive Backlight Management) level used for DC
* enabled hardware. Requires DMCU to be supported and loaded.
* Valid levels are 0-4. A value of 0 indicates that ABM should be disabled by
* default. Values 1-4 control the maximum allowable brightness reduction via
* the ABM algorithm, with 1 being the least reduction and 4 being the most
* reduction.
*
* Defaults to 0, or disabled. Userspace can still override this level later
* after boot.
*/
uint amdgpu_dm_abm_level;
MODULE_PARM_DESC(abmlevel, "ABM level (0 = off (default), 1-4 = backlight reduction level) ");
module_param_named(abmlevel, amdgpu_dm_abm_level, uint, 0444);
int amdgpu_backlight = -1;
MODULE_PARM_DESC(backlight, "Backlight control (0 = pwm, 1 = aux, -1 auto (default))");
module_param_named(backlight, amdgpu_backlight, bint, 0444);
/**
* DOC: tmz (int)
* Trusted Memory Zone (TMZ) is a method to protect data being written
* to or read from memory.
*
* The default value: 0 (off). TODO: change to auto till it is completed.
*/
MODULE_PARM_DESC(tmz, "Enable TMZ feature (-1 = auto (default), 0 = off, 1 = on)");
module_param_named(tmz, amdgpu_tmz, int, 0444);
/**
* DOC: freesync_video (uint)
* Enable the optimization to adjust front porch timing to achieve seamless
* mode change experience when setting a freesync supported mode for which full
* modeset is not needed.
*
* The Display Core will add a set of modes derived from the base FreeSync
* video mode into the corresponding connector's mode list based on commonly
* used refresh rates and VRR range of the connected display, when users enable
* this feature. From the userspace perspective, they can see a seamless mode
* change experience when the change between different refresh rates under the
* same resolution. Additionally, userspace applications such as Video playback
* can read this modeset list and change the refresh rate based on the video
* frame rate. Finally, the userspace can also derive an appropriate mode for a
* particular refresh rate based on the FreeSync Mode and add it to the
* connector's mode list.
*
* Note: This is an experimental feature.
*
* The default value: 0 (off).
*/
MODULE_PARM_DESC(
freesync_video,
"Enable freesync modesetting optimization feature (0 = off (default), 1 = on)");
module_param_named(freesync_video, amdgpu_freesync_vid_mode, uint, 0444);
/**
* DOC: reset_method (int)
* GPU reset method (-1 = auto (default), 0 = legacy, 1 = mode0, 2 = mode1, 3 = mode2, 4 = baco, 5 = pci)
*/
MODULE_PARM_DESC(reset_method, "GPU reset method (-1 = auto (default), 0 = legacy, 1 = mode0, 2 = mode1, 3 = mode2, 4 = baco/bamaco, 5 = pci)");
module_param_named(reset_method, amdgpu_reset_method, int, 0444);
/**
* DOC: bad_page_threshold (int) Bad page threshold is specifies the
* threshold value of faulty pages detected by RAS ECC, which may
* result in the GPU entering bad status when the number of total
* faulty pages by ECC exceeds the threshold value.
*/
MODULE_PARM_DESC(bad_page_threshold, "Bad page threshold(-1 = auto(default value), 0 = disable bad page retirement, -2 = ignore bad page threshold)");
module_param_named(bad_page_threshold, amdgpu_bad_page_threshold, int, 0444);
MODULE_PARM_DESC(num_kcq, "number of kernel compute queue user want to setup (8 if set to greater than 8 or less than 0, only affect gfx 8+)");
module_param_named(num_kcq, amdgpu_num_kcq, int, 0444);
/**
* DOC: smu_pptable_id (int)
* Used to override pptable id. id = 0 use VBIOS pptable.
* id > 0 use the soft pptable with specicfied id.
*/
MODULE_PARM_DESC(smu_pptable_id,
"specify pptable id to be used (-1 = auto(default) value, 0 = use pptable from vbios, > 0 = soft pptable id)");
module_param_named(smu_pptable_id, amdgpu_smu_pptable_id, int, 0444);
/* These devices are not supported by amdgpu.
* They are supported by the mach64, r128, radeon drivers
*/
static const u16 amdgpu_unsupported_pciidlist[] = {
/* mach64 */
0x4354,
0x4358,
0x4554,
0x4742,
0x4744,
0x4749,
0x474C,
0x474D,
0x474E,
0x474F,
0x4750,
0x4751,
0x4752,
0x4753,
0x4754,
0x4755,
0x4756,
0x4757,
0x4758,
0x4759,
0x475A,
0x4C42,
0x4C44,
0x4C47,
0x4C49,
0x4C4D,
0x4C4E,
0x4C50,
0x4C51,
0x4C52,
0x4C53,
0x5654,
0x5655,
0x5656,
/* r128 */
0x4c45,
0x4c46,
0x4d46,
0x4d4c,
0x5041,
0x5042,
0x5043,
0x5044,
0x5045,
0x5046,
0x5047,
0x5048,
0x5049,
0x504A,
0x504B,
0x504C,
0x504D,
0x504E,
0x504F,
0x5050,
0x5051,
0x5052,
0x5053,
0x5054,
0x5055,
0x5056,
0x5057,
0x5058,
0x5245,
0x5246,
0x5247,
0x524b,
0x524c,
0x534d,
0x5446,
0x544C,
0x5452,
/* radeon */
0x3150,
0x3151,
0x3152,
0x3154,
0x3155,
0x3E50,
0x3E54,
0x4136,
0x4137,
0x4144,
0x4145,
0x4146,
0x4147,
0x4148,
0x4149,
0x414A,
0x414B,
0x4150,
0x4151,
0x4152,
0x4153,
0x4154,
0x4155,
0x4156,
0x4237,