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- =========================
- drm/amdgpu AMDgpu driver
- =========================
- The drm/amdgpu driver supports all AMD Radeon GPUs based on the Graphics Core
- Next (GCN) architecture.
- Module Parameters
- =================
- The amdgpu driver supports the following module parameters:
- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
- Core Driver Infrastructure
- ==========================
- This section covers core driver infrastructure.
- .. _amdgpu_memory_domains:
- Memory Domains
- --------------
- .. kernel-doc:: include/uapi/drm/amdgpu_drm.h
- :doc: memory domains
- Buffer Objects
- --------------
- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
- :doc: amdgpu_object
- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
- :internal:
- PRIME Buffer Sharing
- --------------------
- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c
- :doc: PRIME Buffer Sharing
- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c
- :internal:
- MMU Notifier
- ------------
- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c
- :doc: MMU Notifier
- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c
- :internal:
- AMDGPU Virtual Memory
- ---------------------
- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
- :doc: GPUVM
- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
- :internal:
- Interrupt Handling
- ------------------
- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
- :doc: Interrupt Handling
- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
- :internal:
- IP Blocks
- ------------------
- .. kernel-doc:: drivers/gpu/drm/amd/include/amd_shared.h
- :doc: IP Blocks
- .. kernel-doc:: drivers/gpu/drm/amd/include/amd_shared.h
- :identifiers: amd_ip_block_type amd_ip_funcs
- AMDGPU XGMI Support
- ===================
- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
- AMDGPU RAS Support
- ==================
- The AMDGPU RAS interfaces are exposed via sysfs (for informational queries) and
- debugfs (for error injection).
- RAS debugfs/sysfs Control and Error Injection Interfaces
- --------------------------------------------------------
- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
- :doc: AMDGPU RAS debugfs control interface
- RAS Reboot Behavior for Unrecoverable Errors
- --------------------------------------------------------
- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
- :doc: AMDGPU RAS Reboot Behavior for Unrecoverable Errors
- RAS Error Count sysfs Interface
- -------------------------------
- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
- :doc: AMDGPU RAS sysfs Error Count Interface
- RAS EEPROM debugfs Interface
- ----------------------------
- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
- :doc: AMDGPU RAS debugfs EEPROM table reset interface
- RAS VRAM Bad Pages sysfs Interface
- ----------------------------------
- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
- :doc: AMDGPU RAS sysfs gpu_vram_bad_pages Interface
- Sample Code
- -----------
- Sample code for testing error injection can be found here:
- https://cgit.freedesktop.org/mesa/drm/tree/tests/amdgpu/ras_tests.c
- This is part of the libdrm amdgpu unit tests which cover several areas of the GPU.
- There are four sets of tests:
- RAS Basic Test
- The test verifies the RAS feature enabled status and makes sure the necessary sysfs and debugfs files
- are present.
- RAS Query Test
- This test checks the RAS availability and enablement status for each supported IP block as well as
- the error counts.
- RAS Inject Test
- This test injects errors for each IP.
- RAS Disable Test
- This test tests disabling of RAS features for each IP block.
- GPU Power/Thermal Controls and Monitoring
- =========================================
- This section covers hwmon and power/thermal controls.
- HWMON Interfaces
- ----------------
- .. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c
- :doc: hwmon
- GPU sysfs Power State Interfaces
- --------------------------------
- GPU power controls are exposed via sysfs files.
- power_dpm_state
- ~~~~~~~~~~~~~~~
- .. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c
- :doc: power_dpm_state
- power_dpm_force_performance_level
- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- .. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c
- :doc: power_dpm_force_performance_level
- pp_table
- ~~~~~~~~
- .. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c
- :doc: pp_table
- pp_od_clk_voltage
- ~~~~~~~~~~~~~~~~~
- .. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c
- :doc: pp_od_clk_voltage
- pp_dpm_*
- ~~~~~~~~
- .. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c
- :doc: pp_dpm_sclk pp_dpm_mclk pp_dpm_socclk pp_dpm_fclk pp_dpm_dcefclk pp_dpm_pcie
- pp_power_profile_mode
- ~~~~~~~~~~~~~~~~~~~~~
- .. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c
- :doc: pp_power_profile_mode
- \*_busy_percent
- ~~~~~~~~~~~~~~~
- .. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c
- :doc: gpu_busy_percent
- .. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c
- :doc: mem_busy_percent
- gpu_metrics
- ~~~~~~~~~~~~~~~~~~~~~
- .. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c
- :doc: gpu_metrics
- GPU Product Information
- =======================
- Information about the GPU can be obtained on certain cards
- via sysfs
- product_name
- ------------
- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
- :doc: product_name
- product_number
- --------------
- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
- :doc: product_name
- serial_number
- -------------
- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
- :doc: serial_number
- unique_id
- ---------
- .. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c
- :doc: unique_id
- GPU Memory Usage Information
- ============================
- Various memory accounting can be accessed via sysfs
- mem_info_vram_total
- -------------------
- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
- :doc: mem_info_vram_total
- mem_info_vram_used
- ------------------
- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
- :doc: mem_info_vram_used
- mem_info_vis_vram_total
- -----------------------
- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
- :doc: mem_info_vis_vram_total
- mem_info_vis_vram_used
- ----------------------
- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
- :doc: mem_info_vis_vram_used
- mem_info_gtt_total
- ------------------
- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
- :doc: mem_info_gtt_total
- mem_info_gtt_used
- -----------------
- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
- :doc: mem_info_gtt_used
- PCIe Accounting Information
- ===========================
- pcie_bw
- -------
- .. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c
- :doc: pcie_bw
- pcie_replay_count
- -----------------
- .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
- :doc: pcie_replay_count
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