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authorLinus Torvalds <torvalds@linux-foundation.org>2024-03-14 04:34:05 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2024-03-14 04:34:05 +0300
commit480e035fc4c714fb5536e64ab9db04fedc89e910 (patch)
tree01341ee43abe7ecb8efb4e7bbbb1c3b3b50f7ec8 /drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
parente5e038b7ae9da96b93974bf072ca1876899a01a3 (diff)
parent119b225f01e4d3ce974cd3b4d982c76a380c796d (diff)
downloadlinux-480e035fc4c714fb5536e64ab9db04fedc89e910.tar.xz
Merge tag 'drm-next-2024-03-13' of https://gitlab.freedesktop.org/drm/kernel
Pull drm updates from Dave Airlie: "Highlights are usual, more AMD IP blocks for future hw, i915/xe changes, Displayport tunnelling support for i915, msm YUV over DP changes, new tests for ttm, but its mostly a lot of stuff all over the place from lots of people. core: - EDID cleanups - scheduler error handling fixes - managed: add drmm_release_action() with tests - add ratelimited drm debug print - DPCD PSR early transport macro - DP tunneling and bandwidth allocation helpers - remove built-in edids - dp: Avoid AUX transfers on powered-down displays - dp: Add VSC SDP helpers cross drivers: - use new drm print helpers - switch to ->read_edid callback - gem: add stats for shared buffers plus updates to amdgpu, i915, xe syncobj: - fixes to waiting and sleeping ttm: - add tests - fix errno codes - simply busy-placement handling - fix page decryption media: - tc358743: fix v4l device registration video: - move all kernel parameters for video behind CONFIG_VIDEO sound: - remove <drm/drm_edid.h> include from header ci: - add tests for msm - fix apq8016 runner efifb: - use copy of global screen_info state vesafb: - use copy of global screen_info state simplefb: - fix logging bridge: - ite-6505: fix DP link-training bug - samsung-dsim: fix error checking in probe - samsung-dsim: add bsh-smm-s2/pro boards - tc358767: fix regmap usage - imx: add i.MX8MP HDMI PVI plus DT bindings - imx: add i.MX8MP HDMI TX plus DT bindings - sii902x: fix probing and unregistration - tc358767: limit pixel PLL input range - switch to new drm_bridge_read_edid() interface panel: - ltk050h3146w: error-handling fixes - panel-edp: support delay between power-on and enable; use put_sync in unprepare; support Mediatek MT8173 Chromebooks, BOE NV116WHM-N49 V8.0, BOE NV122WUM-N41, CSO MNC207QS1-1 plus DT bindings - panel-lvds: support EDT ETML0700Z9NDHA plus DT bindings - panel-novatek: FRIDA FRD400B25025-A-CTK plus DT bindings - add BOE TH101MB31IG002-28A plus DT bindings - add EDT ETML1010G3DRA plus DT bindings - add Novatek NT36672E LCD DSI plus DT bindings - nt36523: support 120Hz timings, fix includes - simple: fix display timings on RK32FN48H - visionox-vtdr6130: fix initialization - add Powkiddy RGB10MAX3 plus DT bindings - st7703: support panel rotation plus DT bindings - add Himax HX83112A plus DT bindings - ltk500hd1829: add support for ltk101b4029w and admatec 9904370 - simple: add BOE BP082WX1-100 8.2" panel plus DT bindungs panel-orientation-quirks: - GPD Win Mini amdgpu: - Validate DMABuf imports in compute VMs - Add RAS ACA framework - PSP 13 fixes - Misc code cleanups - Replay fixes - Atom interpretor PS, WS bounds checking - DML2 fixes - Audio fixes - DCN 3.5 Z state fixes - Remove deprecated ida_simple usage - UBSAN fixes - RAS fixes - Enable seq64 infrastructure - DC color block enablement - Documentation updates - DC documentation updates - DMCUB updates - ATHUB 4.1 support - LSDMA 7.0 support - JPEG DPG support - IH 7.0 support - HDP 7.0 support - VCN 5.0 support - SMU 13.0.6 updates - NBIO 7.11 updates - SDMA 6.1 updates - MMHUB 3.3 updates - DCN 3.5.1 support - NBIF 6.3.1 support - VPE 6.1.1 support amdkfd: - Validate DMABuf imports in compute VMs - SVM fixes - Trap handler updates and enhancements - Fix cache size reporting - Relocate the trap handler radeon: - Atom interpretor PS, WS bounds checking - Misc code cleanups xe: - new query for GuC submission version - Remove unused persistent exec_queues - Add vram frequency sysfs attributes - Add the flag XE_VM_BIND_FLAG_DUMPABLE - Drop pre-production workarounds - Drop kunit tests for unsupported platforms - Start pumbling SR-IOV support with memory based interrupts for VF - Allow to map BO in GGTT with PAT index corresponding to XE_CACHE_UC to work with memory based interrupts - Add GuC Doorbells Manager as prep work SR-IOV - Implement additional workarounds for xe2 and MTL - Program a few registers according to perfomance guide spec for Xe2 - Fix remaining 32b build issues and enable it back - Fix build with CONFIG_DEBUG_FS=n - Fix warnings from GuC ABI headers - Introduce Relay Communication for SR-IOV for VF <-> GuC <-> PF - Release mmap mappings on rpm suspend - Disable mid-thread preemption when not properly supported by hardware - Fix xe_exec by reserving extra fence slot for CPU bind - Fix xe_exec with full long running exec queue - Canonicalize addresses where needed for Xe2 and add to devcoredum - Toggle USM support for Xe2 - Only allow 1 ufence per exec / bind IOCTL - Add GuC firmware loading for Lunar Lake - Add XE_VMA_PTE_64K VMA flag i915: - Add more ADL-N PCI IDs - Enable fastboot also on older platforms - Early transport for panel replay and PSR - New ARL PCI IDs - DP TPS4 PHY test pattern support - Unify and improve VSC SDP for PSR and non-PSR cases - Refactor memory regions and improve debug logging - Rework global state serialization - Remove unused CDCLK divider fields - Unify HDCP connector logging format - Use display instead of graphics version in display code - Move VBT and opregion debugfs next to the implementation - Abstract opregion interface, use opaque type - MTL fixes - HPD handling fixes - Add GuC submission interface version query - Atomically invalidate userptr on mmu-notifier - Update handling of MMIO triggered reports - Don't make assumptions about intel_wakeref_t type - Extend driver code of Xe_LPG to Xe_LPG+ - Add flex arrays to struct i915_syncmap - Allow for very slow HuC loading - DP tunneling and bandwidth allocation support msm: - Correct bindings for MSM8976 and SM8650 platforms - Start migration of MDP5 platforms to DPU driver - X1E80100 MDSS support - DPU: - Improve DSC allocation, fixing several important corner cases - Add support for SDM630/SDM660 platforms - Simplify dpu_encoder_phys_ops - Apply fixes targeting DSC support with a single DSC encoder - Apply fixes for HCTL_EN timing configuration - X1E80100 support - Add support for YUV420 over DP - GPU: - fix sc7180 UBWC config - fix a7xx LLC config - new gpu support: a305B, a750, a702 - machine support: SM7150 (different power levels than other a618) - a7xx devcoredump support habanalabs: - configure IRQ affinity according to NUMA node - move HBM MMU page tables inside the HBM - improve device reset - check extended PCIe errors ivpu: - updates to firmware API - refactor BO allocation imx: - use devm_ functions during init hisilicon: - fix EDID includes mgag200: - improve ioremap usage - convert to struct drm_edid - Work around PCI write bursts nouveau: - disp: use kmemdup() - fix EDID includes - documentation fixes qaic: - fixes to BO handling - make use of DRM managed release - fix order of remove operations rockchip: - analogix_dp: get encoder port from DT - inno_hdmi: support HDMI for RK3128 - lvds: error-handling fixes ssd130x: - support SSD133x plus DT bindings tegra: - fix error handling tilcdc: - make use of DRM managed release v3d: - show memory stats in debugfs - Support display MMU page size vc4: - fix error handling in plane prepare_fb - fix framebuffer test in plane helpers virtio: - add venus capset defines vkms: - fix OOB access when programming the LUT - Kconfig improvements vmwgfx: - unmap surface before changing plane state - fix memory leak in error handling - documentation fixes - list command SVGA_3D_CMD_DEFINE_GB_SURFACE_V4 as invalid - fix null-pointer deref in execbuf - refactor display-mode probing - fix fencing for creating cursor MOBs - fix cursor-memory lifetime xlnx: - fix live video input for ZynqMP DPSUB lima: - fix memory leak loongson: - fail if no VRAM present meson: - switch to new drm_bridge_read_edid() interface renesas: - add RZ/G2L DU support plus DT bindings mxsfb: - Use managed mode config sun4i: - HDMI: updates to atomic mode setting mediatek: - Add display driver for MT8188 VDOSYS1 - DSI driver cleanups - Filter modes according to hardware capability - Fix a null pointer crash in mtk_drm_crtc_finish_page_flip etnaviv: - enhancements for NPU and MRT support" * tag 'drm-next-2024-03-13' of https://gitlab.freedesktop.org/drm/kernel: (1420 commits) drm/amd/display: Removed redundant @ symbol to fix kernel-doc warnings in -next repo drm/amd/pm: wait for completion of the EnableGfxImu message drm/amdgpu/soc21: add mode2 asic reset for SMU IP v14.0.1 drm/amdgpu: add smu 14.0.1 support drm/amdgpu: add VPE 6.1.1 discovery support drm/amdgpu/vpe: add VPE 6.1.1 support drm/amdgpu/vpe: don't emit cond exec command under collaborate mode drm/amdgpu/vpe: add collaborate mode support for VPE drm/amdgpu/vpe: add PRED_EXE and COLLAB_SYNC OPCODE drm/amdgpu/vpe: add multi instance VPE support drm/amdgpu/discovery: add nbif v6_3_1 ip block drm/amdgpu: Add nbif v6_3_1 ip block support drm/amdgpu: Add pcie v6_1_0 ip headers (v5) drm/amdgpu: Add nbif v6_3_1 ip headers (v5) arch/powerpc: Remove <linux/fb.h> from backlight code macintosh/via-pmu-backlight: Include <linux/backlight.h> fbdev/chipsfb: Include <linux/backlight.h> drm/etnaviv: Restore some id values drm/amdkfd: make kfd_class constant drm/amdgpu: add ring timeout information in devcoredump ...
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c255
1 files changed, 178 insertions, 77 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index b8fcb6c55698..4299ce386322 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -234,6 +234,22 @@ static void amdgpu_vm_bo_invalidated(struct amdgpu_vm_bo_base *vm_bo)
}
/**
+ * amdgpu_vm_bo_evicted_user - vm_bo is evicted
+ *
+ * @vm_bo: vm_bo which is evicted
+ *
+ * State for BOs used by user mode queues which are not at the location they
+ * should be.
+ */
+static void amdgpu_vm_bo_evicted_user(struct amdgpu_vm_bo_base *vm_bo)
+{
+ vm_bo->moved = true;
+ spin_lock(&vm_bo->vm->status_lock);
+ list_move(&vm_bo->vm_status, &vm_bo->vm->evicted_user);
+ spin_unlock(&vm_bo->vm->status_lock);
+}
+
+/**
* amdgpu_vm_bo_relocated - vm_bo is reloacted
*
* @vm_bo: vm_bo which is relocated
@@ -427,21 +443,25 @@ uint64_t amdgpu_vm_generation(struct amdgpu_device *adev, struct amdgpu_vm *vm)
}
/**
- * amdgpu_vm_validate_pt_bos - validate the page table BOs
+ * amdgpu_vm_validate - validate evicted BOs tracked in the VM
*
* @adev: amdgpu device pointer
* @vm: vm providing the BOs
+ * @ticket: optional reservation ticket used to reserve the VM
* @validate: callback to do the validation
* @param: parameter for the validation callback
*
- * Validate the page table BOs on command submission if neccessary.
+ * Validate the page table BOs and per-VM BOs on command submission if
+ * necessary. If a ticket is given, also try to validate evicted user queue
+ * BOs. They must already be reserved with the given ticket.
*
* Returns:
* Validation result.
*/
-int amdgpu_vm_validate_pt_bos(struct amdgpu_device *adev, struct amdgpu_vm *vm,
- int (*validate)(void *p, struct amdgpu_bo *bo),
- void *param)
+int amdgpu_vm_validate(struct amdgpu_device *adev, struct amdgpu_vm *vm,
+ struct ww_acquire_ctx *ticket,
+ int (*validate)(void *p, struct amdgpu_bo *bo),
+ void *param)
{
struct amdgpu_vm_bo_base *bo_base;
struct amdgpu_bo *shadow;
@@ -484,6 +504,34 @@ int amdgpu_vm_validate_pt_bos(struct amdgpu_device *adev, struct amdgpu_vm *vm,
}
spin_lock(&vm->status_lock);
}
+ while (ticket && !list_empty(&vm->evicted_user)) {
+ bo_base = list_first_entry(&vm->evicted_user,
+ struct amdgpu_vm_bo_base,
+ vm_status);
+ spin_unlock(&vm->status_lock);
+
+ bo = bo_base->bo;
+
+ if (dma_resv_locking_ctx(bo->tbo.base.resv) != ticket) {
+ struct amdgpu_task_info *ti = amdgpu_vm_get_task_info_vm(vm);
+
+ pr_warn_ratelimited("Evicted user BO is not reserved\n");
+ if (ti) {
+ pr_warn_ratelimited("pid %d\n", ti->pid);
+ amdgpu_vm_put_task_info(ti);
+ }
+
+ return -EINVAL;
+ }
+
+ r = validate(param, bo);
+ if (r)
+ return r;
+
+ amdgpu_vm_bo_invalidated(bo_base);
+
+ spin_lock(&vm->status_lock);
+ }
spin_unlock(&vm->status_lock);
amdgpu_vm_eviction_lock(vm);
@@ -610,7 +658,7 @@ int amdgpu_vm_flush(struct amdgpu_ring *ring, struct amdgpu_job *job,
bool vm_flush_needed = job->vm_needs_flush;
struct dma_fence *fence = NULL;
bool pasid_mapping_needed = false;
- unsigned patch_offset = 0;
+ unsigned int patch;
int r;
if (amdgpu_vmid_had_gpu_reset(adev, id)) {
@@ -637,7 +685,8 @@ int amdgpu_vm_flush(struct amdgpu_ring *ring, struct amdgpu_job *job,
amdgpu_ring_ib_begin(ring);
if (ring->funcs->init_cond_exec)
- patch_offset = amdgpu_ring_init_cond_exec(ring);
+ patch = amdgpu_ring_init_cond_exec(ring,
+ ring->cond_exe_gpu_addr);
if (need_pipe_sync)
amdgpu_ring_emit_pipeline_sync(ring);
@@ -651,7 +700,7 @@ int amdgpu_vm_flush(struct amdgpu_ring *ring, struct amdgpu_job *job,
amdgpu_gmc_emit_pasid_mapping(ring, job->vmid, job->pasid);
if (spm_update_needed && adev->gfx.rlc.funcs->update_spm_vmid)
- adev->gfx.rlc.funcs->update_spm_vmid(adev, job->vmid);
+ adev->gfx.rlc.funcs->update_spm_vmid(adev, ring, job->vmid);
if (!ring->is_mes_queue && ring->funcs->emit_gds_switch &&
gds_switch_needed) {
@@ -685,8 +734,7 @@ int amdgpu_vm_flush(struct amdgpu_ring *ring, struct amdgpu_job *job,
}
dma_fence_put(fence);
- if (ring->funcs->patch_cond_exec)
- amdgpu_ring_patch_cond_exec(ring, patch_offset);
+ amdgpu_ring_patch_cond_exec(ring, patch);
/* the double SWITCH_BUFFER here *cannot* be skipped by COND_EXEC */
if (ring->funcs->emit_switch_buffer) {
@@ -1343,10 +1391,6 @@ int amdgpu_vm_clear_freed(struct amdgpu_device *adev,
struct amdgpu_bo_va_mapping, list);
list_del(&mapping->list);
- if (vm->pte_support_ats &&
- mapping->start < AMDGPU_GMC_HOLE_START)
- init_pte_value = AMDGPU_PTE_DEFAULT_ATC;
-
r = amdgpu_vm_update_range(adev, vm, false, false, true, false,
resv, mapping->start, mapping->last,
init_pte_value, 0, 0, NULL, NULL,
@@ -1426,11 +1470,21 @@ int amdgpu_vm_handle_moved(struct amdgpu_device *adev,
}
r = amdgpu_vm_bo_update(adev, bo_va, clear);
- if (r)
- return r;
if (unlock)
dma_resv_unlock(resv);
+ if (r)
+ return r;
+
+ /* Remember evicted DMABuf imports in compute VMs for later
+ * validation
+ */
+ if (vm->is_compute_context &&
+ bo_va->base.bo->tbo.base.import_attach &&
+ (!bo_va->base.bo->tbo.resource ||
+ bo_va->base.bo->tbo.resource->mem_type == TTM_PL_SYSTEM))
+ amdgpu_vm_bo_evicted_user(&bo_va->base);
+
spin_lock(&vm->status_lock);
}
spin_unlock(&vm->status_lock);
@@ -2173,6 +2227,108 @@ long amdgpu_vm_wait_idle(struct amdgpu_vm *vm, long timeout)
return dma_fence_wait_timeout(vm->last_unlocked, true, timeout);
}
+static void amdgpu_vm_destroy_task_info(struct kref *kref)
+{
+ struct amdgpu_task_info *ti = container_of(kref, struct amdgpu_task_info, refcount);
+
+ kfree(ti);
+}
+
+static inline struct amdgpu_vm *
+amdgpu_vm_get_vm_from_pasid(struct amdgpu_device *adev, u32 pasid)
+{
+ struct amdgpu_vm *vm;
+ unsigned long flags;
+
+ xa_lock_irqsave(&adev->vm_manager.pasids, flags);
+ vm = xa_load(&adev->vm_manager.pasids, pasid);
+ xa_unlock_irqrestore(&adev->vm_manager.pasids, flags);
+
+ return vm;
+}
+
+/**
+ * amdgpu_vm_put_task_info - reference down the vm task_info ptr
+ *
+ * @task_info: task_info struct under discussion.
+ *
+ * frees the vm task_info ptr at the last put
+ */
+void amdgpu_vm_put_task_info(struct amdgpu_task_info *task_info)
+{
+ kref_put(&task_info->refcount, amdgpu_vm_destroy_task_info);
+}
+
+/**
+ * amdgpu_vm_get_task_info_vm - Extracts task info for a vm.
+ *
+ * @vm: VM to get info from
+ *
+ * Returns the reference counted task_info structure, which must be
+ * referenced down with amdgpu_vm_put_task_info.
+ */
+struct amdgpu_task_info *
+amdgpu_vm_get_task_info_vm(struct amdgpu_vm *vm)
+{
+ struct amdgpu_task_info *ti = NULL;
+
+ if (vm) {
+ ti = vm->task_info;
+ kref_get(&vm->task_info->refcount);
+ }
+
+ return ti;
+}
+
+/**
+ * amdgpu_vm_get_task_info_pasid - Extracts task info for a PASID.
+ *
+ * @adev: drm device pointer
+ * @pasid: PASID identifier for VM
+ *
+ * Returns the reference counted task_info structure, which must be
+ * referenced down with amdgpu_vm_put_task_info.
+ */
+struct amdgpu_task_info *
+amdgpu_vm_get_task_info_pasid(struct amdgpu_device *adev, u32 pasid)
+{
+ return amdgpu_vm_get_task_info_vm(
+ amdgpu_vm_get_vm_from_pasid(adev, pasid));
+}
+
+static int amdgpu_vm_create_task_info(struct amdgpu_vm *vm)
+{
+ vm->task_info = kzalloc(sizeof(struct amdgpu_task_info), GFP_KERNEL);
+ if (!vm->task_info)
+ return -ENOMEM;
+
+ kref_init(&vm->task_info->refcount);
+ return 0;
+}
+
+/**
+ * amdgpu_vm_set_task_info - Sets VMs task info.
+ *
+ * @vm: vm for which to set the info
+ */
+void amdgpu_vm_set_task_info(struct amdgpu_vm *vm)
+{
+ if (!vm->task_info)
+ return;
+
+ if (vm->task_info->pid == current->pid)
+ return;
+
+ vm->task_info->pid = current->pid;
+ get_task_comm(vm->task_info->task_name, current);
+
+ if (current->group_leader->mm != current->mm)
+ return;
+
+ vm->task_info->tgid = current->group_leader->pid;
+ get_task_comm(vm->task_info->process_name, current->group_leader);
+}
+
/**
* amdgpu_vm_init - initialize a vm instance
*
@@ -2196,6 +2352,7 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm,
for (i = 0; i < AMDGPU_MAX_VMHUBS; i++)
vm->reserved_vmid[i] = NULL;
INIT_LIST_HEAD(&vm->evicted);
+ INIT_LIST_HEAD(&vm->evicted_user);
INIT_LIST_HEAD(&vm->relocated);
INIT_LIST_HEAD(&vm->moved);
INIT_LIST_HEAD(&vm->idle);
@@ -2211,7 +2368,6 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm,
if (r)
return r;
- vm->pte_support_ats = false;
vm->is_compute_context = false;
vm->use_cpu_for_update = !!(adev->vm_manager.vm_update_mode &
@@ -2258,6 +2414,10 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm,
if (r)
goto error_free_root;
+ r = amdgpu_vm_create_task_info(vm);
+ if (r)
+ DRM_DEBUG("Failed to create task info for VM\n");
+
amdgpu_bo_unreserve(vm->root.bo);
amdgpu_bo_unref(&root_bo);
@@ -2297,30 +2457,12 @@ error_free_delayed:
*/
int amdgpu_vm_make_compute(struct amdgpu_device *adev, struct amdgpu_vm *vm)
{
- bool pte_support_ats = (adev->asic_type == CHIP_RAVEN);
int r;
r = amdgpu_bo_reserve(vm->root.bo, true);
if (r)
return r;
- /* Check if PD needs to be reinitialized and do it before
- * changing any other state, in case it fails.
- */
- if (pte_support_ats != vm->pte_support_ats) {
- /* Sanity checks */
- if (!amdgpu_vm_pt_is_root_clean(adev, vm)) {
- r = -EINVAL;
- goto unreserve_bo;
- }
-
- vm->pte_support_ats = pte_support_ats;
- r = amdgpu_vm_pt_clear(adev, vm, to_amdgpu_bo_vm(vm->root.bo),
- false);
- if (r)
- goto unreserve_bo;
- }
-
/* Update VM state */
vm->use_cpu_for_update = !!(adev->vm_manager.vm_update_mode &
AMDGPU_VM_USE_CPU_FOR_COMPUTE);
@@ -2397,6 +2539,7 @@ void amdgpu_vm_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm)
root = amdgpu_bo_ref(vm->root.bo);
amdgpu_bo_reserve(root, true);
+ amdgpu_vm_put_task_info(vm->task_info);
amdgpu_vm_set_pasid(adev, vm, 0);
dma_fence_wait(vm->last_unlocked, false);
dma_fence_put(vm->last_unlocked);
@@ -2554,48 +2697,6 @@ int amdgpu_vm_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
}
/**
- * amdgpu_vm_get_task_info - Extracts task info for a PASID.
- *
- * @adev: drm device pointer
- * @pasid: PASID identifier for VM
- * @task_info: task_info to fill.
- */
-void amdgpu_vm_get_task_info(struct amdgpu_device *adev, u32 pasid,
- struct amdgpu_task_info *task_info)
-{
- struct amdgpu_vm *vm;
- unsigned long flags;
-
- xa_lock_irqsave(&adev->vm_manager.pasids, flags);
-
- vm = xa_load(&adev->vm_manager.pasids, pasid);
- if (vm)
- *task_info = vm->task_info;
-
- xa_unlock_irqrestore(&adev->vm_manager.pasids, flags);
-}
-
-/**
- * amdgpu_vm_set_task_info - Sets VMs task info.
- *
- * @vm: vm for which to set the info
- */
-void amdgpu_vm_set_task_info(struct amdgpu_vm *vm)
-{
- if (vm->task_info.pid)
- return;
-
- vm->task_info.pid = current->pid;
- get_task_comm(vm->task_info.task_name, current);
-
- if (current->group_leader->mm != current->mm)
- return;
-
- vm->task_info.tgid = current->group_leader->pid;
- get_task_comm(vm->task_info.process_name, current->group_leader);
-}
-
-/**
* amdgpu_vm_handle_fault - graceful handling of VM faults.
* @adev: amdgpu device pointer
* @pasid: PASID of the VM