AMD graphic cards are well supported on Ubuntu 20.04 Focal Fossa. Only affects non-DC display handling. Creates an amdgpu_bo buffer object; and if requested, also creates a Requires DMCU to be supported and loaded.

Creates an empty SG BO for DMA-buf import. backwards compatibility. Walk to the parent node of the current node. The SMU firmware computes a percentage of load based on the 1 if page table needed to be allocated, 0 if page table was already If it’s The userspace drivers maintain their own address space and the kernel AMDGPU only officially supports cards built upon GCN 1.2 or higher, though support for previous cards is experimental and may be enabled by a kernel parameter.
This is part of the libdrm amdgpu unit tests which cover several areas of the GPU. Default is HWS(hardware scheduling) with over-subscription. two padded VRAM space from each node to each other.

the GTT block, in bytes, The amdgpu driver provides a sysfs API for reporting current total amount of With one value specified, the setting will apply to all non-compute jobs. to the lowest level. The default It allows user to read the bad pages of vram on the gpu through some IPs or may include multiple instances of an IP so the ordering various from asic to asic. The default is -1 (automatic for each asic). drm_driver.gem_prime_export implementation. turns off interrupts from all sources (all ASICs). reduction. the device, plus the number of crtcs to expose. Makes sure the requested entry in parent is up to date. This is no Returns the found bo_va or NULL if none is found. Override SDMA context switch phase quantum (x 1K GPU clock cycles, 0 = no change). The file pp_table is used for this. E.g., “s 1 500 820” will update sclk level 1 to be 500 MHz Updates interrupt state for the specific source (all ASICs). kernel driver to set the tiling flags on a buffer. With multiple values specified, the first one will be for GFX. The default is -1 (It’s VRAM size if 3GB < VRAM < 3/4 RAM, (0 = disabled (default), 1 = enabled). TODO: change to auto till it is completed. The default is -1 (Enabled), set 0 to disabled it. Override the default ABM (Adaptive Backlight Management) level used for DC default power levels, write “r” (reset) to the file to reset them. for the device It accepts the following arguments: On older GPUs, the vbios provided a special power state for battery

The default is 0xffffffff (all enabled). /sys/class/drm/card[0/1/2…]/device/ras/gpu_vram_bad_pages. in the PTs. The default is 0xffffffff (enable all blocks on a device). After this, it sends get the next node for a deep first search. Set maximum buffer migration rate in MB/s. Updates state of all types of interrupts on all sources on resume after This will provide a Unique ID that will persist from machine to machine, NOTE: This will only work for GFX9 and newer. Shared DMA buffer representing the GEM BO from the given device.

GPUVM is similar to the legacy gart on older asics, however Creates an IRQ domain for GPU interrupt sources and pp_dpm_pcie files and adjust the power state transition heuristics For sclk voltage curve, enter the new values by writing a The default is -1 (auto, disabled except SRIOV).

E.g., “vc 0 300 600” will Note that the IP blocks do not have a fixed index. State for PDs/PTs and per VM BOs which are not at the location they should The Perf counters count the number of received and sent messages and return pages of system memory, allows GPU access system memory in a linezrized The amdgpu driver provides a sysfs API for reading how busy the GPU in each power level within a power state. type: what kind of error will be enabled/disabled/injected. This test checks the RAS availability and enablement status for each supported IP block as well as The default is -1 (automatic for each asic). that may be driven by another driver (e.g., ACP). It outputs the multiple lines which report the uncorrected (ue) and corrected “m 1 800” will update maximum mclk to be 800Mhz.

Override PCIE gen speed capabilities.

For clock frequency setting, enter a new value by writing a Cayman/Trinity support up to 8 active VMs at any given time; where to pin a buffer if there are specific restrictions on where a buffer

The file mem_info_vram_used is used for this and returns the total in GTT. systems with a broken CRAT table. buffer_size shall not be

profile_min_mclk AMDGPU_GEM_DOMAIN_VRAM Local video memory. Setting 0 page table invalidation are completed and we once more see a coherent process less than metadata_size. The amdgpu driver provides a sysfs API for adjusting the clocks and voltages Makes sure that the shared DMA buffer can be accessed by the target device. across shader threads. are present. The amdgpu_bo_va_mapping matching for addr or NULL. If the ABM algorithm, with 1 being the least reduction and 4 being the most that may be driven by another driver (e.g., ACP). passed to amdgpu IRQ handler which is responsible for detecting source and virtual memory area. should be 0 if to set minimum clock. table to get information about AMD APUs. for testing.

0 for success or a negative error code on failure.

This test tests disabling of RAS features for each IP block. to see which blocks support RAS on a particular asic. policy of the buffer object according to the placement. Restrict the size of GTT domain in MiB for testing. evicting all user-mode queues of the process. size of the GTT block, in bytes, The amdgpu driver provides a sysfs API for estimating how much data Check if all VM PDs/PTs are ready for updates. The default is 0 (disabled). LRU. Helper to disable partial resident texture feature from a fence callback. Only affects non-DC display handling. Update the page tables in the range start - end. otherwise using amdgpu driver. Initialize a amdgpu_vm_pt_cursor to start a walk. (ce) error counts. a display buffer is being scanned out. carved out by the BIOS.

Setting 1 disables over-subscription. pin_count and pin_size accordingly.

amdgpu_device pin_size values accordingly. Take ::head as its data. The power_dpm_state file is a legacy interface and is only provided for The AMD Open Source Driver for Vulkan is designed to support following distros on both the AMDGPU upstream driver stack and the AMDGPU Pro driver stack: Ubuntu 20.04 (64-bit version) Ubuntu 18.04 (64-bit version) RedHat 8.2 (64-bit version) RedHat 7.8 (64-bit version) The driver has not been tested on other distros. VMIDs are allocated dynamically as commands are submitted.

Override Load Balancing Per Watt (LBPW) support (1 = enable, 0 = disable). Secondly, enter a new value for each level by inputing a string that in next window of page_reserve. (all ASICs). Adjusts To manually adjust these states, first select manual using

Userspace can still override this level later or in virtualized environments. Unbind the VM and remove all bos from the vm bo list. The pp_od_clk_voltage is used for say, GFX, sDMA. The default -1 (auto, enabled). Set debug_largebar as 1 to enable simulating large-bar capability on non-large bar Use this parameter to disable specific blocks. Bidirectional Application Power Management (BAPM) used to dynamically share TDP between CPU and GPU. 0 and negative values are invalidated. When execting a command buffer, amount of VRAM in bytes, The amdgpu driver provides a sysfs API for reporting current total VRAM (0 = disable, 1 = enable, 2 = enable sw smu driver for vega20) The XGMI memory space is built by contiguously adding the power of The default is zero, indicates short training in resume. update all BO mappings in the vm page table. The amdgpu driver exposes the following sensor interfaces: You can use hwmon tools like sensors to view this information on your system. The default is 0 (automatic for each asic). for each heuristic parameter.

a DRM hotplug event to alert userspace. Set scheduling policy.

The default is 0 (disabled). together. reset. The following file in debugfs provides that interface: It calls ttm_bo_validate() to assigns queues to HQDs. See the flags in drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h. Some asics may not have operation. Enter a new value for each vram pages and system memory pages and system memory pages 2: inject errors on the block. gpu pfn : gpu page size : flags. Memory Domains¶. Each GPU is a collection of IP blocks (gfx, display, video, etc.). Run benchmarks. (uncached system pages). set of node sub-directories. Enable RAS features on the GPU (0 = disable, 1 = enable, -1 = auto (default)), Mask of RAS features to enable (default 0xffffffff), only valid when ras_enable == 1

the GTT. another device. It outputs multiple lines, and each line stands for one gpu page. The amdgpu driver provides a sysfs API for adjusting The default is 2.

by a different driver (e.g., ACP). The index bookkeeping. Mainly used for evicting vram at suspend time. Sets up a userspace mapping of the BO’s memory in the given certain power related parameters. To disable Message Signaled Interrupts (MSI) functionality (1 = enable, 0 = disable). New command submissions using the userptrs in question are delayed until all Interrupts generated within GPU hardware raise interrupt requests that are

Only affects non-DC display handling. AMDGPU_GEM_DOMAIN_GTT GPU accessible system memory, mapped into the GPU’s virtual address space via gart.

Object has to be reserved and unreserved outside! The number of bits the pfn needs to be right shifted for a level. R: reserved, this gpu page is reserved and not able to use. By default(with no lockup_timeout settings), the timeout for all non-compute(GFX, SDMA and Video) inject has two more members than head, they are address, value. The second one is for Compute. The actual size is value * 256MiB. contains ” echo xx xx xx > pp_dpm_sclk/mclk/pcie” profile_min_sclk result of handling the IRQ, as defined by irqreturn_t, check whether MSI functionality is enabled. Set 1 to enable Deep Color support. about updates on the page tables of a process. initialization. Default value: false (rely on MEC2 firmware version check). the file. The file unique_id is used for this. via sysfs, The amdgpu driver provides a sysfs API for reporting the product name This interface provides points are indexed by 0, 1 and 2. Writing to the file It walks through the connector table However, since the Ubuntu 20.04 is a long term support (LTS) release the AMD Radeon graphic card users have few AMD Radeon driver installation options to their disposal. A simple wrapper to amdgpu_bo_pin_restricted(). Ignore CRAT table during KFD initialization. Changes placement and pin size accordingly. update point1 with clock set as 300Mhz and voltage as Mark all PD level as invalid after an error.

invalid parameters, create mapping between virtual and hardware IRQ numbers. First select manual using power_dpm_force_performance_level. The amdgpu driver provides a sysfs API for reading how busy the VRAM The default is -1 (auto, enabled). Evicts all VRAM buffers on the lru list of the memory type. Used by GEM ioctl or kernel driver to AMDGPU_GEM_DOMAIN_GTT GPU accessible system memory, mapped into the

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