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d="scan'208";a="26709250" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by fmvoesa106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Aug 2024 21:53:47 -0700 X-CSE-ConnectionGUID: eYjq4NBBSKGLzLe+DIUC3A== X-CSE-MsgGUID: +mBTDfe2SbOh1JKq+tok2w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,169,1719903600"; d="scan'208";a="66608948" Received: from lstrano-desk.jf.intel.com ([10.54.39.91]) by orviesa004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Aug 2024 21:53:47 -0700 From: Matthew Brost To: intel-xe@lists.freedesktop.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org Cc: thomas.hellstrom@linux.intel.com, sumit.semwal@linaro.org, christian.koenig@amd.com, daniel@ffwll.ch Subject: [PATCH v3 1/2] dma-buf: Split out dma fence array create into alloc and arm functions Date: Thu, 22 Aug 2024 21:54:42 -0700 Message-Id: <20240823045443.2132118-2-matthew.brost@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240823045443.2132118-1-matthew.brost@intel.com> References: <20240823045443.2132118-1-matthew.brost@intel.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-LSpam-Score: -7.3 (-------) X-LSpam-Report: No, score=-7.3 required=5.0 tests=ARC_SIGNED=0.001,ARC_VALID=-0.1,BAYES_00=-1.9,DKIMWL_WL_HIGH=-1,DKIM_SIGNED=0.1,DKIM_VALID=-0.1,DKIM_VALID_AU=-0.1,DMARC_PASS=-0.001,HEADER_FROM_DIFFERENT_DOMAINS=0.5,MAILING_LIST_MULTI=-1,RCVD_IN_VALIDITY_CERTIFIED=-3,RCVD_IN_VALIDITY_RPBL=1.31,RCVD_IN_VALIDITY_SAFE=-2,SPF_HELO_NONE=0.001,SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no Useful to preallocate dma fence array and then arm in path of reclaim or a dma fence. Cc: Sumit Semwal Cc: Christian König Signed-off-by: Matthew Brost --- drivers/dma-buf/dma-fence-array.c | 81 ++++++++++++++++++++++--------- include/linux/dma-fence-array.h | 7 +++ 2 files changed, 66 insertions(+), 22 deletions(-) diff --git a/drivers/dma-buf/dma-fence-array.c b/drivers/dma-buf/dma-fence-array.c index c74ac197d5fe..b03e0a87a5cd 100644 --- a/drivers/dma-buf/dma-fence-array.c +++ b/drivers/dma-buf/dma-fence-array.c @@ -144,36 +144,38 @@ const struct dma_fence_ops dma_fence_array_ops = { EXPORT_SYMBOL(dma_fence_array_ops); /** - * dma_fence_array_create - Create a custom fence array + * dma_fence_array_alloc - Allocate a custom fence array + * @num_fences: [in] number of fences to add in the array + * + * Return dma fence array on success, NULL on failure + */ +struct dma_fence_array *dma_fence_array_alloc(int num_fences) +{ + struct dma_fence_array *array; + + return kzalloc(struct_size(array, callbacks, num_fences), GFP_KERNEL); +} +EXPORT_SYMBOL(dma_fence_array_alloc); + +/** + * dma_fence_array_arm - Arm a custom fence array + * @array: [in] dma fence array to arm * @num_fences: [in] number of fences to add in the array * @fences: [in] array containing the fences * @context: [in] fence context to use * @seqno: [in] sequence number to use * @signal_on_any: [in] signal on any fence in the array * - * Allocate a dma_fence_array object and initialize the base fence with - * dma_fence_init(). - * In case of error it returns NULL. - * - * The caller should allocate the fences array with num_fences size - * and fill it with the fences it wants to add to the object. Ownership of this - * array is taken and dma_fence_put() is used on each fence on release. - * - * If @signal_on_any is true the fence array signals if any fence in the array - * signals, otherwise it signals when all fences in the array signal. + * Implementation of @dma_fence_array_create without allocation. Useful to arm a + * preallocated dma fence fence in the path of reclaim or dma fence signaling. */ -struct dma_fence_array *dma_fence_array_create(int num_fences, - struct dma_fence **fences, - u64 context, unsigned seqno, - bool signal_on_any) +void dma_fence_array_arm(struct dma_fence_array *array, + int num_fences, + struct dma_fence **fences, + u64 context, unsigned seqno, + bool signal_on_any) { - struct dma_fence_array *array; - - WARN_ON(!num_fences || !fences); - - array = kzalloc(struct_size(array, callbacks, num_fences), GFP_KERNEL); - if (!array) - return NULL; + WARN_ON(!array || !num_fences || !fences); array->num_fences = num_fences; @@ -200,6 +202,41 @@ struct dma_fence_array *dma_fence_array_create(int num_fences, */ while (num_fences--) WARN_ON(dma_fence_is_container(fences[num_fences])); +} +EXPORT_SYMBOL(dma_fence_array_arm); + +/** + * dma_fence_array_create - Create a custom fence array + * @num_fences: [in] number of fences to add in the array + * @fences: [in] array containing the fences + * @context: [in] fence context to use + * @seqno: [in] sequence number to use + * @signal_on_any: [in] signal on any fence in the array + * + * Allocate a dma_fence_array object and initialize the base fence with + * dma_fence_init(). + * In case of error it returns NULL. + * + * The caller should allocate the fences array with num_fences size + * and fill it with the fences it wants to add to the object. Ownership of this + * array is taken and dma_fence_put() is used on each fence on release. + * + * If @signal_on_any is true the fence array signals if any fence in the array + * signals, otherwise it signals when all fences in the array signal. + */ +struct dma_fence_array *dma_fence_array_create(int num_fences, + struct dma_fence **fences, + u64 context, unsigned seqno, + bool signal_on_any) +{ + struct dma_fence_array *array; + + array = dma_fence_array_alloc(num_fences); + if (!array) + return NULL; + + dma_fence_array_arm(array, num_fences, fences, + context, seqno, signal_on_any); return array; } diff --git a/include/linux/dma-fence-array.h b/include/linux/dma-fence-array.h index 29c5650c1038..3466ffc4b803 100644 --- a/include/linux/dma-fence-array.h +++ b/include/linux/dma-fence-array.h @@ -79,6 +79,13 @@ to_dma_fence_array(struct dma_fence *fence) for (index = 0, fence = dma_fence_array_first(head); fence; \ ++(index), fence = dma_fence_array_next(head, index)) +struct dma_fence_array *dma_fence_array_alloc(int num_fences); +void dma_fence_array_arm(struct dma_fence_array *array, + int num_fences, + struct dma_fence **fences, + u64 context, unsigned seqno, + bool signal_on_any); + struct dma_fence_array *dma_fence_array_create(int num_fences, struct dma_fence **fences, u64 context, unsigned seqno, From patchwork Fri Aug 23 04:54:43 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Matthew Brost X-Patchwork-Id: 103607 Received: from ny.mirrors.kernel.org ([147.75.199.223]) by linuxtv.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1shMJH-0007LI-1S for patchwork@linuxtv.org; Fri, 23 Aug 2024 04:54:04 +0000 Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ny.mirrors.kernel.org (Postfix) with ESMTPS id 0AA5D1C2232A for ; Fri, 23 Aug 2024 04:54:00 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 32DC34D8A9; 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X-CSE-ConnectionGUID: EKdX82VNT3mp6eSdYzupFQ== X-CSE-MsgGUID: Knl0EAW7QHGFvSIx9PYVug== X-IronPort-AV: E=McAfee;i="6700,10204,11172"; a="26709255" X-IronPort-AV: E=Sophos;i="6.10,169,1719903600"; d="scan'208";a="26709255" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by fmvoesa106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Aug 2024 21:53:47 -0700 X-CSE-ConnectionGUID: exo4ts3vSbO6KqfGYxaoRQ== X-CSE-MsgGUID: BTvYcWGwQPyiLOVNd7Z2yA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,169,1719903600"; d="scan'208";a="66608949" Received: from lstrano-desk.jf.intel.com ([10.54.39.91]) by orviesa004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Aug 2024 21:53:47 -0700 From: Matthew Brost To: intel-xe@lists.freedesktop.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org Cc: thomas.hellstrom@linux.intel.com, sumit.semwal@linaro.org, christian.koenig@amd.com, daniel@ffwll.ch Subject: [PATCH v3 2/2] drm/xe: Use dma-fence array for media GT TLB invalidations in PT code Date: Thu, 22 Aug 2024 21:54:43 -0700 Message-Id: <20240823045443.2132118-3-matthew.brost@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240823045443.2132118-1-matthew.brost@intel.com> References: <20240823045443.2132118-1-matthew.brost@intel.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-LSpam-Score: -7.3 (-------) X-LSpam-Report: No, score=-7.3 required=5.0 tests=ARC_SIGNED=0.001,ARC_VALID=-0.1,BAYES_00=-1.9,DKIMWL_WL_HIGH=-1,DKIM_SIGNED=0.1,DKIM_VALID=-0.1,DKIM_VALID_AU=-0.1,DMARC_PASS=-0.001,HEADER_FROM_DIFFERENT_DOMAINS=0.5,MAILING_LIST_MULTI=-1,RCVD_IN_VALIDITY_CERTIFIED=-3,RCVD_IN_VALIDITY_RPBL=1.31,RCVD_IN_VALIDITY_SAFE=-2,SPF_HELO_NONE=0.001,SPF_PASS=-0.001 autolearn=ham autolearn_force=no Using a chain fence is problematic as these cannot be installed in timeout drm sync objects. Use a dma-fence-array instead at the cost of an extra failure point. Also fixup reserve fence count to include media GT invalidation fence. v2: - Fix reserve fence count (Casey Bowman) v3: - Prealloc dma fence array (CI) Fixes: 40520283e0fd ("drm/xe: Invalidate media_gt TLBs in PT code") Signed-off-by: Matthew Brost --- drivers/gpu/drm/xe/xe_pt.c | 34 ++++++++++++++++++++++++---------- 1 file changed, 24 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/xe/xe_pt.c b/drivers/gpu/drm/xe/xe_pt.c index 6c6714af3d5d..2e35444a85b0 100644 --- a/drivers/gpu/drm/xe/xe_pt.c +++ b/drivers/gpu/drm/xe/xe_pt.c @@ -3,7 +3,7 @@ * Copyright © 2022 Intel Corporation */ -#include +#include #include "xe_pt.h" @@ -1629,9 +1629,11 @@ xe_pt_update_ops_rfence_interval(struct xe_vm_pgtable_update_ops *pt_update_ops, static int vma_reserve_fences(struct xe_device *xe, struct xe_vma *vma) { + int shift = xe_device_get_root_tile(xe)->media_gt ? 1 : 0; + if (!xe_vma_has_no_bo(vma) && !xe_vma_bo(vma)->vm) return dma_resv_reserve_fences(xe_vma_bo(vma)->ttm.base.resv, - xe->info.tile_count); + xe->info.tile_count << shift); return 0; } @@ -1818,6 +1820,7 @@ int xe_pt_update_ops_prepare(struct xe_tile *tile, struct xe_vma_ops *vops) struct xe_vm_pgtable_update_ops *pt_update_ops = &vops->pt_update_ops[tile->id]; struct xe_vma_op *op; + int shift = tile->media_gt ? 1 : 0; int err; lockdep_assert_held(&vops->vm->lock); @@ -1826,7 +1829,7 @@ int xe_pt_update_ops_prepare(struct xe_tile *tile, struct xe_vma_ops *vops) xe_pt_update_ops_init(pt_update_ops); err = dma_resv_reserve_fences(xe_vm_resv(vops->vm), - tile_to_xe(tile)->info.tile_count); + tile_to_xe(tile)->info.tile_count << shift); if (err) return err; @@ -1983,7 +1986,8 @@ xe_pt_update_ops_run(struct xe_tile *tile, struct xe_vma_ops *vops) &vops->pt_update_ops[tile->id]; struct dma_fence *fence; struct invalidation_fence *ifence = NULL, *mfence = NULL; - struct dma_fence_chain *chain_fence = NULL; + struct dma_fence **fences = NULL; + struct dma_fence_array *cf = NULL; struct xe_range_fence *rfence; struct xe_vma_op *op; int err = 0, i; @@ -2022,8 +2026,13 @@ xe_pt_update_ops_run(struct xe_tile *tile, struct xe_vma_ops *vops) err = -ENOMEM; goto free_ifence; } - chain_fence = dma_fence_chain_alloc(); - if (!chain_fence) { + fences = kmalloc_array(2, sizeof(*fences), GFP_KERNEL); + if (!fences) { + err = -ENOMEM; + goto free_ifence; + } + cf = dma_fence_array_alloc(2); + if (!cf) { err = -ENOMEM; goto free_ifence; } @@ -2068,9 +2077,13 @@ xe_pt_update_ops_run(struct xe_tile *tile, struct xe_vma_ops *vops) invalidation_fence_init(tile->media_gt, mfence, fence, pt_update_ops->start, pt_update_ops->last, vm->usm.asid); - dma_fence_chain_init(chain_fence, &ifence->base.base, - &mfence->base.base, 0); - fence = &chain_fence->base; + fences[0] = &ifence->base.base; + fences[1] = &mfence->base.base; + dma_fence_array_arm(cf, 2, fences, + vm->composite_fence_ctx, + vm->composite_fence_seqno++, + false); + fence = &cf->base; } else { fence = &ifence->base.base; } @@ -2108,7 +2121,8 @@ xe_pt_update_ops_run(struct xe_tile *tile, struct xe_vma_ops *vops) free_rfence: kfree(rfence); free_ifence: - dma_fence_chain_free(chain_fence); + kfree(cf); + kfree(fences); kfree(mfence); kfree(ifence); kill_vm_tile1: