From 1b08dfb889b2c584b444538c9500af24ba0a6dc7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Tue, 18 Jan 2022 12:53:11 +0100 Subject: drm/amdgpu: remove gart.ready flag MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit That's just a leftover from old radeon days and was preventing CS and GART bindings before the hardware was initialized. But nowdays that is perfectly valid. The only thing we need to warn about are GART binding before the table is even allocated. Signed-off-by: Christian König Reviewed-by: Guchun Chen Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c index 72022df264f6..c5263908caec 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c @@ -220,26 +220,21 @@ uint64_t amdgpu_gtt_mgr_usage(struct amdgpu_gtt_mgr *mgr) * * Re-init the gart for each known BO in the GTT. */ -int amdgpu_gtt_mgr_recover(struct amdgpu_gtt_mgr *mgr) +void amdgpu_gtt_mgr_recover(struct amdgpu_gtt_mgr *mgr) { struct amdgpu_gtt_node *node; struct drm_mm_node *mm_node; struct amdgpu_device *adev; - int r = 0; adev = container_of(mgr, typeof(*adev), mman.gtt_mgr); spin_lock(&mgr->lock); drm_mm_for_each_node(mm_node, &mgr->mm) { node = container_of(mm_node, typeof(*node), base.mm_nodes[0]); - r = amdgpu_ttm_recover_gart(node->tbo); - if (r) - break; + amdgpu_ttm_recover_gart(node->tbo); } spin_unlock(&mgr->lock); amdgpu_gart_invalidate_tlb(adev); - - return r; } /** -- cgit v1.2.3 From de3688e469b08be958914674e8b01cb0cea42388 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Fri, 9 Jul 2021 15:18:39 +0200 Subject: drm/ttm: add ttm_resource_fini v2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Make sure we call the common cleanup function in all implementations of the resource manager. v2: fix missing case in i915, rudimentary kerneldoc, should be filled in more when we add more functionality Signed-off-by: Christian König Reviewed-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20220124122514.1832-2-christian.koenig@amd.com --- drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c index 675a72ef305d..ea5470c8c921 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c @@ -169,6 +169,7 @@ static int amdgpu_gtt_mgr_new(struct ttm_resource_manager *man, return 0; err_free: + ttm_resource_fini(man, &node->base.base); kfree(node); err_out: @@ -200,6 +201,7 @@ static void amdgpu_gtt_mgr_del(struct ttm_resource_manager *man, if (!(res->placement & TTM_PL_FLAG_TEMPORARY)) atomic64_sub(res->num_pages, &mgr->used); + ttm_resource_fini(man, res); kfree(node); } -- cgit v1.2.3 From 3f268ef06f8cf3c481dbd5843d564f5170c6df54 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Mon, 30 Aug 2021 09:22:06 +0200 Subject: drm/ttm: add back a reference to the bdev to the res manager MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit It is simply a lot cleaner to have this around instead of adding the device throughout the call chain. Signed-off-by: Christian König Reviewed-by: Huang Rui Acked-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20220124122514.1832-3-christian.koenig@amd.com --- drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c index ea5470c8c921..9e7685a4878c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c @@ -293,7 +293,8 @@ int amdgpu_gtt_mgr_init(struct amdgpu_device *adev, uint64_t gtt_size) man->use_tt = true; man->func = &amdgpu_gtt_mgr_func; - ttm_resource_manager_init(man, gtt_size >> PAGE_SHIFT); + ttm_resource_manager_init(man, &adev->mman.bdev, + gtt_size >> PAGE_SHIFT); start = AMDGPU_GTT_MAX_TRANSFER_SIZE * AMDGPU_GTT_NUM_TRANSFER_WINDOWS; size = (adev->gmc.gart_size >> PAGE_SHIFT) - start; -- cgit v1.2.3 From dfa714b88eb0a9d763eba9e5720b089a58dc9496 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Mon, 12 Jul 2021 15:18:05 +0200 Subject: drm/amdgpu: remove GTT accounting v2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This is provided by TTM now. Also switch man->size to bytes instead of pages and fix the double printing of size and usage in debugfs. v2: fix size checking as well Signed-off-by: Christian König Tested-by: Bas Nieuwenhuizen Reviewed-by: Matthew Auld Link: https://patchwork.freedesktop.org/patch/msgid/20220214093439.2989-6-christian.koenig@amd.com --- drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c | 49 +++++++---------------------- 1 file changed, 11 insertions(+), 38 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c index e0c7fbe01d93..3bcd27ae379d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c @@ -60,7 +60,7 @@ static ssize_t amdgpu_mem_info_gtt_total_show(struct device *dev, struct ttm_resource_manager *man; man = ttm_manager_type(&adev->mman.bdev, TTM_PL_TT); - return sysfs_emit(buf, "%llu\n", man->size * PAGE_SIZE); + return sysfs_emit(buf, "%llu\n", man->size); } /** @@ -77,8 +77,9 @@ static ssize_t amdgpu_mem_info_gtt_used_show(struct device *dev, { struct drm_device *ddev = dev_get_drvdata(dev); struct amdgpu_device *adev = drm_to_adev(ddev); + struct ttm_resource_manager *man = &adev->mman.gtt_mgr.manager; - return sysfs_emit(buf, "%llu\n", amdgpu_gtt_mgr_usage(&adev->mman.gtt_mgr)); + return sysfs_emit(buf, "%llu\n", ttm_resource_manager_usage(man)); } static DEVICE_ATTR(mem_info_gtt_total, S_IRUGO, @@ -130,20 +131,17 @@ static int amdgpu_gtt_mgr_new(struct ttm_resource_manager *man, struct amdgpu_gtt_node *node; int r; - if (!(place->flags & TTM_PL_FLAG_TEMPORARY) && - atomic64_add_return(num_pages, &mgr->used) > man->size) { - atomic64_sub(num_pages, &mgr->used); - return -ENOSPC; - } - node = kzalloc(struct_size(node, base.mm_nodes, 1), GFP_KERNEL); - if (!node) { - r = -ENOMEM; - goto err_out; - } + if (!node) + return -ENOMEM; node->tbo = tbo; ttm_resource_init(tbo, place, &node->base.base); + if (!(place->flags & TTM_PL_FLAG_TEMPORARY) && + ttm_resource_manager_usage(man) > man->size) { + r = -ENOSPC; + goto err_free; + } if (place->lpfn) { spin_lock(&mgr->lock); @@ -169,11 +167,6 @@ static int amdgpu_gtt_mgr_new(struct ttm_resource_manager *man, err_free: ttm_resource_fini(man, &node->base.base); kfree(node); - -err_out: - if (!(place->flags & TTM_PL_FLAG_TEMPORARY)) - atomic64_sub(num_pages, &mgr->used); - return r; } @@ -196,25 +189,10 @@ static void amdgpu_gtt_mgr_del(struct ttm_resource_manager *man, drm_mm_remove_node(&node->base.mm_nodes[0]); spin_unlock(&mgr->lock); - if (!(res->placement & TTM_PL_FLAG_TEMPORARY)) - atomic64_sub(res->num_pages, &mgr->used); - ttm_resource_fini(man, res); kfree(node); } -/** - * amdgpu_gtt_mgr_usage - return usage of GTT domain - * - * @mgr: amdgpu_gtt_mgr pointer - * - * Return how many bytes are used in the GTT domain - */ -uint64_t amdgpu_gtt_mgr_usage(struct amdgpu_gtt_mgr *mgr) -{ - return atomic64_read(&mgr->used) * PAGE_SIZE; -} - /** * amdgpu_gtt_mgr_recover - re-init gart * @@ -260,9 +238,6 @@ static void amdgpu_gtt_mgr_debug(struct ttm_resource_manager *man, spin_lock(&mgr->lock); drm_mm_print(&mgr->mm, printer); spin_unlock(&mgr->lock); - - drm_printf(printer, "man size:%llu pages, gtt used:%llu pages\n", - man->size, atomic64_read(&mgr->used)); } static const struct ttm_resource_manager_func amdgpu_gtt_mgr_func = { @@ -288,14 +263,12 @@ int amdgpu_gtt_mgr_init(struct amdgpu_device *adev, uint64_t gtt_size) man->use_tt = true; man->func = &amdgpu_gtt_mgr_func; - ttm_resource_manager_init(man, &adev->mman.bdev, - gtt_size >> PAGE_SHIFT); + ttm_resource_manager_init(man, &adev->mman.bdev, gtt_size); start = AMDGPU_GTT_MAX_TRANSFER_SIZE * AMDGPU_GTT_NUM_TRANSFER_WINDOWS; size = (adev->gmc.gart_size >> PAGE_SHIFT) - start; drm_mm_init(&mgr->mm, start, size); spin_lock_init(&mgr->lock); - atomic64_set(&mgr->used, 0); ttm_set_driver_manager(&adev->mman.bdev, TTM_PL_TT, &mgr->manager); ttm_resource_manager_set_used(man, true); -- cgit v1.2.3