From 600319c61505c30dcb4f72eea9d23aa94c8ea50d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Wed, 16 Aug 2017 11:13:48 +0200 Subject: [PATCH 1791/4131] drm/amdgpu: add support for per VM BOs v2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Per VM BOs are handled like VM PDs and PTs. They are always valid and don't need to be specified in the BO lists. v2: validate PDs/PTs first Signed-off-by: Christian König Reviewed-by: Felix Kuehling --- drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 79 ++++++++++++++++++++++++---------- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 3 +- 3 files changed, 59 insertions(+), 25 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index 8072f2f..1b903a7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c @@ -865,7 +865,7 @@ static int amdgpu_bo_vm_update_pte(struct amdgpu_cs_parser *p) } - r = amdgpu_vm_clear_moved(adev, vm, &p->job->sync); + r = amdgpu_vm_handle_moved(adev, vm, &p->job->sync); if (amdgpu_vm_debug && p->bo_list) { /* Invalidate all BOs to test for userspace bugs */ diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 13ab876..904f67b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -195,14 +195,18 @@ int amdgpu_vm_validate_pt_bos(struct amdgpu_device *adev, struct amdgpu_vm *vm, spin_unlock(&glob->lru_lock); } - if (vm->use_cpu_for_update) { + if (bo->tbo.type == ttm_bo_type_kernel && + vm->use_cpu_for_update) { r = amdgpu_bo_kmap(bo, NULL); if (r) return r; } spin_lock(&vm->status_lock); - list_move(&bo_base->vm_status, &vm->relocated); + if (bo->tbo.type != ttm_bo_type_kernel) + list_move(&bo_base->vm_status, &vm->moved); + else + list_move(&bo_base->vm_status, &vm->relocated); } spin_unlock(&vm->status_lock); @@ -2013,20 +2017,23 @@ int amdgpu_vm_clear_freed(struct amdgpu_device *adev, } /** - * amdgpu_vm_clear_moved - clear moved BOs in the PT + * amdgpu_vm_handle_moved - handle moved BOs in the PT * * @adev: amdgpu_device pointer * @vm: requested vm + * @sync: sync object to add fences to * - * Make sure all moved BOs are cleared in the PT. + * Make sure all BOs which are moved are updated in the PTs. * Returns 0 for success. * - * PTs have to be reserved and mutex must be locked! + * PTs have to be reserved! */ -int amdgpu_vm_clear_moved(struct amdgpu_device *adev, struct amdgpu_vm *vm, - struct amdgpu_sync *sync) +int amdgpu_vm_handle_moved(struct amdgpu_device *adev, + struct amdgpu_vm *vm, + struct amdgpu_sync *sync) { struct amdgpu_bo_va *bo_va = NULL; + bool clear; int r = 0; spin_lock(&vm->status_lock); @@ -2035,7 +2042,10 @@ int amdgpu_vm_clear_moved(struct amdgpu_device *adev, struct amdgpu_vm *vm, struct amdgpu_bo_va, base.vm_status); spin_unlock(&vm->status_lock); - r = amdgpu_vm_bo_update(adev, bo_va, true); + /* Per VM BOs never need to bo cleared in the page tables */ + clear = bo_va->base.bo->tbo.resv != vm->root.base.bo->tbo.resv; + + r = amdgpu_vm_bo_update(adev, bo_va, clear); if (r) return r; @@ -2087,6 +2097,37 @@ struct amdgpu_bo_va *amdgpu_vm_bo_add(struct amdgpu_device *adev, return bo_va; } + +/** + * amdgpu_vm_bo_insert_mapping - insert a new mapping + * + * @adev: amdgpu_device pointer + * @bo_va: bo_va to store the address + * @mapping: the mapping to insert + * + * Insert a new mapping into all structures. + */ +static void amdgpu_vm_bo_insert_map(struct amdgpu_device *adev, + struct amdgpu_bo_va *bo_va, + struct amdgpu_bo_va_mapping *mapping) +{ + struct amdgpu_vm *vm = bo_va->base.vm; + struct amdgpu_bo *bo = bo_va->base.bo; + + list_add(&mapping->list, &bo_va->invalids); + amdgpu_vm_it_insert(mapping, &vm->va); + + if (mapping->flags & AMDGPU_PTE_PRT) + amdgpu_vm_prt_get(adev); + + if (bo && bo->tbo.resv == vm->root.base.bo->tbo.resv) { + spin_lock(&vm->status_lock); + list_move(&bo_va->base.vm_status, &vm->moved); + spin_unlock(&vm->status_lock); + } + trace_amdgpu_vm_bo_map(bo_va, mapping); +} + /** * amdgpu_vm_bo_map - map bo inside a vm * @@ -2138,18 +2179,12 @@ int amdgpu_vm_bo_map(struct amdgpu_device *adev, if (!mapping) return -ENOMEM; - INIT_LIST_HEAD(&mapping->list); mapping->start = saddr; mapping->last = eaddr; mapping->offset = offset; mapping->flags = flags; - list_add(&mapping->list, &bo_va->invalids); - amdgpu_vm_it_insert(mapping, &vm->va); - - if (flags & AMDGPU_PTE_PRT) - amdgpu_vm_prt_get(adev); - trace_amdgpu_vm_bo_map(bo_va, mapping); + amdgpu_vm_bo_insert_map(adev, bo_va, mapping); return 0; } @@ -2176,7 +2211,6 @@ int amdgpu_vm_bo_replace_map(struct amdgpu_device *adev, { struct amdgpu_bo_va_mapping *mapping; struct amdgpu_bo *bo = bo_va->base.bo; - struct amdgpu_vm *vm = bo_va->base.vm; uint64_t eaddr; int r; @@ -2210,12 +2244,7 @@ int amdgpu_vm_bo_replace_map(struct amdgpu_device *adev, mapping->offset = offset; mapping->flags = flags; - list_add(&mapping->list, &bo_va->invalids); - amdgpu_vm_it_insert(mapping, &vm->va); - - if (flags & AMDGPU_PTE_PRT) - amdgpu_vm_prt_get(adev); - trace_amdgpu_vm_bo_map(bo_va, mapping); + amdgpu_vm_bo_insert_map(adev, bo_va, mapping); return 0; } @@ -2430,7 +2459,11 @@ void amdgpu_vm_bo_invalidate(struct amdgpu_device *adev, bo_base->moved = true; if (evicted && bo->tbo.resv == vm->root.base.bo->tbo.resv) { spin_lock(&bo_base->vm->status_lock); - list_move(&bo_base->vm_status, &vm->evicted); + if (bo->tbo.type == ttm_bo_type_kernel) + list_move(&bo_base->vm_status, &vm->evicted); + else + list_move_tail(&bo_base->vm_status, + &vm->evicted); spin_unlock(&bo_base->vm->status_lock); continue; } diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h index 415e659..8792e86 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h @@ -255,7 +255,8 @@ int amdgpu_vm_clear_freed(struct amdgpu_device *adev, struct amdgpu_vm *vm, struct dma_fence **fence); int amdgpu_vm_handle_moved(struct amdgpu_device *adev, - struct amdgpu_vm *vm); + struct amdgpu_vm *vm, + struct amdgpu_sync *sync); int amdgpu_vm_bo_update(struct amdgpu_device *adev, struct amdgpu_bo_va *bo_va, bool clear); -- 2.7.4