From feb13f52c8547a8198045077d6aa9c3f2400ba11 Mon Sep 17 00:00:00 2001 From: Jesse Zhang Date: Thu, 29 Feb 2024 14:00:14 +0800 Subject: Revert "drm/amdgpu: remove vm sanity check from amdgpu_vm_make_compute" for Raven MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit fix the issue: "amdgpu: Failed to create process VM object". [Why]when amdgpu initialized, seq64 do mampping and update bo mapping in vm page table. But when clifo run. It also initializes a vm for a process device through the function kfd_process_device_init_vm and ensure the root PD is clean through the function amdgpu_vm_pt_is_root_clean. So they have a conflict, and clinfo always failed. v1: - remove all the pte_supports_ats stuff from the amdgpu_vm code (Felix) Signed-off-by: Jesse Zhang Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c | 56 +------------------------------ 1 file changed, 1 insertion(+), 55 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c index a160265ddc07..2835cb3f76eb 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c @@ -89,22 +89,6 @@ static unsigned int amdgpu_vm_pt_num_entries(struct amdgpu_device *adev, return AMDGPU_VM_PTE_COUNT(adev); } -/** - * amdgpu_vm_pt_num_ats_entries - return the number of ATS entries in the root PD - * - * @adev: amdgpu_device pointer - * - * Returns: - * The number of entries in the root page directory which needs the ATS setting. - */ -static unsigned int amdgpu_vm_pt_num_ats_entries(struct amdgpu_device *adev) -{ - unsigned int shift; - - shift = amdgpu_vm_pt_level_shift(adev, adev->vm_manager.root_level); - return AMDGPU_GMC_HOLE_START >> (shift + AMDGPU_GPU_PAGE_SHIFT); -} - /** * amdgpu_vm_pt_entries_mask - the mask to get the entry number of a PD/PT * @@ -379,7 +363,7 @@ int amdgpu_vm_pt_clear(struct amdgpu_device *adev, struct amdgpu_vm *vm, struct ttm_operation_ctx ctx = { true, false }; struct amdgpu_vm_update_params params; struct amdgpu_bo *ancestor = &vmbo->bo; - unsigned int entries, ats_entries; + unsigned int entries; struct amdgpu_bo *bo = &vmbo->bo; uint64_t addr; int r, idx; @@ -394,27 +378,6 @@ int amdgpu_vm_pt_clear(struct amdgpu_device *adev, struct amdgpu_vm *vm, } entries = amdgpu_bo_size(bo) / 8; - if (!vm->pte_support_ats) { - ats_entries = 0; - - } else if (!bo->parent) { - ats_entries = amdgpu_vm_pt_num_ats_entries(adev); - ats_entries = min(ats_entries, entries); - entries -= ats_entries; - - } else { - struct amdgpu_vm_bo_base *pt; - - pt = ancestor->vm_bo; - ats_entries = amdgpu_vm_pt_num_ats_entries(adev); - if ((pt - to_amdgpu_bo_vm(vm->root.bo)->entries) >= - ats_entries) { - ats_entries = 0; - } else { - ats_entries = entries; - entries = 0; - } - } r = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx); if (r) @@ -445,23 +408,6 @@ int amdgpu_vm_pt_clear(struct amdgpu_device *adev, struct amdgpu_vm *vm, goto exit; addr = 0; - if (ats_entries) { - uint64_t value = 0, flags; - - flags = AMDGPU_PTE_DEFAULT_ATC; - if (level != AMDGPU_VM_PTB) { - /* Handle leaf PDEs as PTEs */ - flags |= AMDGPU_PDE_PTE; - amdgpu_gmc_get_vm_pde(adev, level, &value, &flags); - } - - r = vm->update_funcs->update(¶ms, vmbo, addr, 0, - ats_entries, value, flags); - if (r) - goto exit; - - addr += ats_entries * 8; - } if (entries) { uint64_t value = 0, flags = 0; -- cgit v1.2.3 From b8f67b9ddf4f8fe6dd536590712b5912ad78f99c Mon Sep 17 00:00:00 2001 From: Shashank Sharma Date: Thu, 18 Jan 2024 20:15:42 +0100 Subject: drm/amdgpu: change vm->task_info handling This patch changes the handling and lifecycle of vm->task_info object. The major changes are: - vm->task_info is a dynamically allocated ptr now, and its uasge is reference counted. - introducing two new helper funcs for task_info lifecycle management - amdgpu_vm_get_task_info: reference counts up task_info before returning this info - amdgpu_vm_put_task_info: reference counts down task_info - last put to task_info() frees task_info from the vm. This patch also does logistical changes required for existing usage of vm->task_info. V2: Do not block all the prints when task_info not found (Felix) V3: Fixed review comments from Felix - Fix wrong indentation - No debug message for -ENOMEM - Add NULL check for task_info - Do not duplicate the debug messages (ti vs no ti) - Get first reference of task_info in vm_init(), put last in vm_fini() V4: Fixed review comments from Felix - fix double reference increment in create_task_info - change amdgpu_vm_get_task_info_pasid - additional changes in amdgpu_gem.c while porting Cc: Christian Koenig Cc: Alex Deucher Cc: Felix Kuehling Reviewed-by: Felix Kuehling Signed-off-by: Shashank Sharma Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c index 2835cb3f76eb..8bce4da67131 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c @@ -973,7 +973,7 @@ int amdgpu_vm_ptes_update(struct amdgpu_vm_update_params *params, trace_amdgpu_vm_update_ptes(params, frag_start, upd_end, min(nptes, 32u), dst, incr, upd_flags, - vm->task_info.tgid, + vm->task_info ? vm->task_info->tgid : 0, vm->immediate.fence_context); amdgpu_vm_pte_update_flags(params, to_amdgpu_bo_vm(pt), cursor.level, pe_start, dst, -- cgit v1.2.3 From bb8863cc9d067c44e751579881048dca0403133c Mon Sep 17 00:00:00 2001 From: Jesse Zhang Date: Tue, 5 Mar 2024 10:22:57 +0800 Subject: drm/amdgpu: remove unused code MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Remove the unused function - amdgpu_vm_pt_is_root_clean and remove the impossible condition v1: entries == 0 is not possible any more, so this condition could probably be removed (Felix) Signed-off-by: Jesse Zhang Suggested-by：Felix Kuehling Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c | 60 ++++++++----------------------- 1 file changed, 15 insertions(+), 45 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c index 8bce4da67131..124389a6bf48 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c @@ -409,27 +409,24 @@ int amdgpu_vm_pt_clear(struct amdgpu_device *adev, struct amdgpu_vm *vm, addr = 0; - if (entries) { - uint64_t value = 0, flags = 0; - - if (adev->asic_type >= CHIP_VEGA10) { - if (level != AMDGPU_VM_PTB) { - /* Handle leaf PDEs as PTEs */ - flags |= AMDGPU_PDE_PTE; - amdgpu_gmc_get_vm_pde(adev, level, - &value, &flags); - } else { - /* Workaround for fault priority problem on GMC9 */ - flags = AMDGPU_PTE_EXECUTABLE; - } + uint64_t value = 0, flags = 0; + if (adev->asic_type >= CHIP_VEGA10) { + if (level != AMDGPU_VM_PTB) { + /* Handle leaf PDEs as PTEs */ + flags |= AMDGPU_PDE_PTE; + amdgpu_gmc_get_vm_pde(adev, level, + &value, &flags); + } else { + /* Workaround for fault priority problem on GMC9 */ + flags = AMDGPU_PTE_EXECUTABLE; } - - r = vm->update_funcs->update(¶ms, vmbo, addr, 0, entries, - value, flags); - if (r) - goto exit; } + r = vm->update_funcs->update(¶ms, vmbo, addr, 0, entries, + value, flags); + if (r) + goto exit; + r = vm->update_funcs->commit(¶ms, NULL); exit: drm_dev_exit(idx); @@ -673,33 +670,6 @@ void amdgpu_vm_pt_free_root(struct amdgpu_device *adev, struct amdgpu_vm *vm) amdgpu_vm_pt_free_dfs(adev, vm, NULL, false); } -/** - * amdgpu_vm_pt_is_root_clean - check if a root PD is clean - * - * @adev: amdgpu_device pointer - * @vm: the VM to check - * - * Check all entries of the root PD, if any subsequent PDs are allocated, - * it means there are page table creating and filling, and is no a clean - * VM - * - * Returns: - * 0 if this VM is clean - */ -bool amdgpu_vm_pt_is_root_clean(struct amdgpu_device *adev, - struct amdgpu_vm *vm) -{ - enum amdgpu_vm_level root = adev->vm_manager.root_level; - unsigned int entries = amdgpu_vm_pt_num_entries(adev, root); - unsigned int i = 0; - - for (i = 0; i < entries; i++) { - if (to_amdgpu_bo_vm(vm->root.bo)->entries[i].bo) - return false; - } - return true; -} - /** * amdgpu_vm_pde_update - update a single level in the hierarchy * -- cgit v1.2.3