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5946dbe1c8
Add documentation for the uma/carveout_options and uma/carveout attributes in sysfs Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Yo-Jung Leo Lin (AMD) <Leo.Lin@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
157 lines
3.3 KiB
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157 lines
3.3 KiB
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================================
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Misc AMDGPU driver information
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================================
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GPU Product Information
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=======================
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Information about the GPU can be obtained on certain cards
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via sysfs
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product_name
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------------
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.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
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:doc: product_name
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product_number
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--------------
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.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
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:doc: product_number
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serial_number
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-------------
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.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
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:doc: serial_number
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fru_id
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-------------
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.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
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:doc: fru_id
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manufacturer
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-------------
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.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
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:doc: manufacturer
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unique_id
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---------
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.. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c
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:doc: unique_id
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board_info
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----------
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.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
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:doc: board_info
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GPU Memory Usage Information
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============================
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Various memory accounting can be accessed via sysfs
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mem_info_vram_total
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-------------------
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.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
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:doc: mem_info_vram_total
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mem_info_vram_used
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------------------
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.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
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:doc: mem_info_vram_used
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mem_info_vis_vram_total
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-----------------------
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.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
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:doc: mem_info_vis_vram_total
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mem_info_vis_vram_used
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----------------------
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.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
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:doc: mem_info_vis_vram_used
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mem_info_gtt_total
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------------------
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.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
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:doc: mem_info_gtt_total
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mem_info_gtt_used
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-----------------
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.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
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:doc: mem_info_gtt_used
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PCIe Accounting Information
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===========================
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pcie_bw
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-------
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.. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c
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:doc: pcie_bw
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pcie_replay_count
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-----------------
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.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
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:doc: pcie_replay_count
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GPU SmartShift Information
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==========================
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GPU SmartShift information via sysfs
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smartshift_apu_power
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--------------------
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.. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c
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:doc: smartshift_apu_power
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smartshift_dgpu_power
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---------------------
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.. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c
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:doc: smartshift_dgpu_power
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smartshift_bias
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---------------
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.. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c
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:doc: smartshift_bias
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UMA Carveout
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============
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Some versions of Atom ROM expose available options for the VRAM carveout sizes,
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and allow changes to the carveout size via the ATCS function code 0xA on supported
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BIOS implementations.
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For those platforms, users can use the following files under uma/ to set the
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carveout size, in a way similar to what Windows users can do in the "Tuning"
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tab in AMD Adrenalin.
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Note that for BIOS implementations that don't support this, these files will not
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be created at all.
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uma/carveout_options
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--------------------
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.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
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:doc: uma/carveout_options
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uma/carveout
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--------------------
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.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
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:doc: uma/carveout
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