From 8a206685d36f6f0c6b72637f920ef973ea9cc936 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Christian=20K=C3=B6nig?= Date: Tue, 19 Apr 2022 14:33:39 +0200 Subject: [PATCH] drm/amdgpu: use drm_exec for GEM and CSA handling v2 MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Start using the new component here as well. v2: ignore duplicates to allow per VM BO mappings Signed-off-by: Christian König Acked-by: Alex Deucher Link: https://patchwork.freedesktop.org/patch/msgid/20230711133122.3710-5-christian.koenig@amd.com --- drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c | 78 ++++++++++++++----------------- drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 81 ++++++++++++++++----------------- 2 files changed, 72 insertions(+), 87 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c index 23d0545..7200110 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_csa.c @@ -22,6 +22,8 @@ * * Author: Monk.liu@amd.com */ +#include + #include "amdgpu.h" uint64_t amdgpu_csa_vaddr(struct amdgpu_device *adev) @@ -65,31 +67,25 @@ int amdgpu_map_static_csa(struct amdgpu_device *adev, struct amdgpu_vm *vm, struct amdgpu_bo *bo, struct amdgpu_bo_va **bo_va, uint64_t csa_addr, uint32_t size) { - struct ww_acquire_ctx ticket; - struct list_head list; - struct amdgpu_bo_list_entry pd; - struct ttm_validate_buffer csa_tv; + struct drm_exec exec; int r; - INIT_LIST_HEAD(&list); - INIT_LIST_HEAD(&csa_tv.head); - csa_tv.bo = &bo->tbo; - csa_tv.num_shared = 1; - - list_add(&csa_tv.head, &list); - amdgpu_vm_get_pd_bo(vm, &list, &pd); - - r = ttm_eu_reserve_buffers(&ticket, &list, true, NULL); - if (r) { - DRM_ERROR("failed to reserve CSA,PD BOs: err=%d\n", r); - return r; + drm_exec_init(&exec, DRM_EXEC_INTERRUPTIBLE_WAIT); + drm_exec_until_all_locked(&exec) { + r = amdgpu_vm_lock_pd(vm, &exec, 0); + if (likely(!r)) + r = drm_exec_lock_obj(&exec, &bo->tbo.base); + drm_exec_retry_on_contention(&exec); + if (unlikely(r)) { + DRM_ERROR("failed to reserve CSA,PD BOs: err=%d\n", r); + goto error; + } } *bo_va = amdgpu_vm_bo_add(adev, vm, bo); if (!*bo_va) { - ttm_eu_backoff_reservation(&ticket, &list); - DRM_ERROR("failed to create bo_va for static CSA\n"); - return -ENOMEM; + r = -ENOMEM; + goto error; } r = amdgpu_vm_bo_map(adev, *bo_va, csa_addr, 0, size, @@ -99,48 +95,42 @@ int amdgpu_map_static_csa(struct amdgpu_device *adev, struct amdgpu_vm *vm, if (r) { DRM_ERROR("failed to do bo_map on static CSA, err=%d\n", r); amdgpu_vm_bo_del(adev, *bo_va); - ttm_eu_backoff_reservation(&ticket, &list); - return r; + goto error; } - ttm_eu_backoff_reservation(&ticket, &list); - return 0; +error: + drm_exec_fini(&exec); + return r; } int amdgpu_unmap_static_csa(struct amdgpu_device *adev, struct amdgpu_vm *vm, struct amdgpu_bo *bo, struct amdgpu_bo_va *bo_va, uint64_t csa_addr) { - struct ww_acquire_ctx ticket; - struct list_head list; - struct amdgpu_bo_list_entry pd; - struct ttm_validate_buffer csa_tv; + struct drm_exec exec; int r; - INIT_LIST_HEAD(&list); - INIT_LIST_HEAD(&csa_tv.head); - csa_tv.bo = &bo->tbo; - csa_tv.num_shared = 1; - - list_add(&csa_tv.head, &list); - amdgpu_vm_get_pd_bo(vm, &list, &pd); - - r = ttm_eu_reserve_buffers(&ticket, &list, true, NULL); - if (r) { - DRM_ERROR("failed to reserve CSA,PD BOs: err=%d\n", r); - return r; + drm_exec_init(&exec, DRM_EXEC_INTERRUPTIBLE_WAIT); + drm_exec_until_all_locked(&exec) { + r = amdgpu_vm_lock_pd(vm, &exec, 0); + if (likely(!r)) + r = drm_exec_lock_obj(&exec, &bo->tbo.base); + drm_exec_retry_on_contention(&exec); + if (unlikely(r)) { + DRM_ERROR("failed to reserve CSA,PD BOs: err=%d\n", r); + goto error; + } } r = amdgpu_vm_bo_unmap(adev, bo_va, csa_addr); if (r) { DRM_ERROR("failed to do bo_unmap on static CSA, err=%d\n", r); - ttm_eu_backoff_reservation(&ticket, &list); - return r; + goto error; } amdgpu_vm_bo_del(adev, bo_va); - ttm_eu_backoff_reservation(&ticket, &list); - - return 0; +error: + drm_exec_fini(&exec); + return r; } diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c index 74055cb..7da8719 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c @@ -33,6 +33,7 @@ #include #include +#include #include #include @@ -198,29 +199,24 @@ static void amdgpu_gem_object_close(struct drm_gem_object *obj, struct amdgpu_fpriv *fpriv = file_priv->driver_priv; struct amdgpu_vm *vm = &fpriv->vm; - struct amdgpu_bo_list_entry vm_pd; - struct list_head list, duplicates; struct dma_fence *fence = NULL; - struct ttm_validate_buffer tv; - struct ww_acquire_ctx ticket; struct amdgpu_bo_va *bo_va; + struct drm_exec exec; long r; - INIT_LIST_HEAD(&list); - INIT_LIST_HEAD(&duplicates); - - tv.bo = &bo->tbo; - tv.num_shared = 2; - list_add(&tv.head, &list); - - amdgpu_vm_get_pd_bo(vm, &list, &vm_pd); - - r = ttm_eu_reserve_buffers(&ticket, &list, false, &duplicates); - if (r) { - dev_err(adev->dev, "leaking bo va because " - "we fail to reserve bo (%ld)\n", r); - return; + drm_exec_init(&exec, DRM_EXEC_IGNORE_DUPLICATES); + drm_exec_until_all_locked(&exec) { + r = drm_exec_prepare_obj(&exec, &bo->tbo.base, 1); + drm_exec_retry_on_contention(&exec); + if (unlikely(r)) + goto out_unlock; + + r = amdgpu_vm_lock_pd(vm, &exec, 0); + drm_exec_retry_on_contention(&exec); + if (unlikely(r)) + goto out_unlock; } + bo_va = amdgpu_vm_bo_find(vm, bo); if (!bo_va || --bo_va->ref_count) goto out_unlock; @@ -230,6 +226,9 @@ static void amdgpu_gem_object_close(struct drm_gem_object *obj, goto out_unlock; r = amdgpu_vm_clear_freed(adev, vm, &fence); + if (unlikely(r < 0)) + dev_err(adev->dev, "failed to clear page " + "tables on GEM object close (%ld)\n", r); if (r || !fence) goto out_unlock; @@ -237,10 +236,9 @@ static void amdgpu_gem_object_close(struct drm_gem_object *obj, dma_fence_put(fence); out_unlock: - if (unlikely(r < 0)) - dev_err(adev->dev, "failed to clear page " - "tables on GEM object close (%ld)\n", r); - ttm_eu_backoff_reservation(&ticket, &list); + if (r) + dev_err(adev->dev, "leaking bo va (%ld)\n", r); + drm_exec_fini(&exec); } static int amdgpu_gem_object_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma) @@ -675,10 +673,7 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data, struct amdgpu_fpriv *fpriv = filp->driver_priv; struct amdgpu_bo *abo; struct amdgpu_bo_va *bo_va; - struct amdgpu_bo_list_entry vm_pd; - struct ttm_validate_buffer tv; - struct ww_acquire_ctx ticket; - struct list_head list, duplicates; + struct drm_exec exec; uint64_t va_flags; uint64_t vm_size; int r = 0; @@ -728,36 +723,38 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data, return -EINVAL; } - INIT_LIST_HEAD(&list); - INIT_LIST_HEAD(&duplicates); if ((args->operation != AMDGPU_VA_OP_CLEAR) && !(args->flags & AMDGPU_VM_PAGE_PRT)) { gobj = drm_gem_object_lookup(filp, args->handle); if (gobj == NULL) return -ENOENT; abo = gem_to_amdgpu_bo(gobj); - tv.bo = &abo->tbo; - if (abo->flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID) - tv.num_shared = 1; - else - tv.num_shared = 0; - list_add(&tv.head, &list); } else { gobj = NULL; abo = NULL; } - amdgpu_vm_get_pd_bo(&fpriv->vm, &list, &vm_pd); + drm_exec_init(&exec, DRM_EXEC_INTERRUPTIBLE_WAIT | + DRM_EXEC_IGNORE_DUPLICATES); + drm_exec_until_all_locked(&exec) { + if (gobj) { + r = drm_exec_lock_obj(&exec, gobj); + drm_exec_retry_on_contention(&exec); + if (unlikely(r)) + goto error; + } - r = ttm_eu_reserve_buffers(&ticket, &list, true, &duplicates); - if (r) - goto error_unref; + r = amdgpu_vm_lock_pd(&fpriv->vm, &exec, 2); + drm_exec_retry_on_contention(&exec); + if (unlikely(r)) + goto error; + } if (abo) { bo_va = amdgpu_vm_bo_find(&fpriv->vm, abo); if (!bo_va) { r = -ENOENT; - goto error_backoff; + goto error; } } else if (args->operation != AMDGPU_VA_OP_CLEAR) { bo_va = fpriv->prt_va; @@ -794,10 +791,8 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data, amdgpu_gem_va_update_vm(adev, &fpriv->vm, bo_va, args->operation); -error_backoff: - ttm_eu_backoff_reservation(&ticket, &list); - -error_unref: +error: + drm_exec_fini(&exec); drm_gem_object_put(gobj); return r; } -- 2.7.4