From patchwork Thu Aug 22 12:12:09 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lionel Landwerlin X-Patchwork-Id: 11110937 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 423F11399 for ; Fri, 23 Aug 2019 08:13:36 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2AF7A233A2 for ; Fri, 23 Aug 2019 08:13:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2AF7A233A2 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4762F6EC04; Fri, 23 Aug 2019 08:13:35 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id 662696EBF1 for ; Fri, 23 Aug 2019 08:13:22 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Aug 2019 05:12:17 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,416,1559545200"; d="scan'208";a="178833556" Received: from gnkatsox-mobl1.ger.corp.intel.com (HELO delly.ger.corp.intel.com) ([10.252.53.116]) by fmsmga008.fm.intel.com with ESMTP; 22 Aug 2019 05:12:14 -0700 From: Lionel Landwerlin To: intel-gfx@lists.freedesktop.org Date: Thu, 22 Aug 2019 14:12:09 +0200 Message-Id: <20190822121210.21959-2-lionel.g.landwerlin@intel.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20190822121210.21959-1-lionel.g.landwerlin@intel.com> References: <20190822121210.21959-1-lionel.g.landwerlin@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v5 1/2] drm/i915: introduce a mechanism to extend execbuf2 X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" We're planning to use this for a couple of new feature where we need to provide additional parameters to execbuf. v2: Check for invalid flags in execbuffer2 (Lionel) v3: Rename I915_EXEC_EXT -> I915_EXEC_USE_EXTENSIONS (Chris) Signed-off-by: Lionel Landwerlin Reviewed-by: Chris Wilson (v1) --- .../gpu/drm/i915/gem/i915_gem_execbuffer.c | 39 ++++++++++++++++++- include/uapi/drm/i915_drm.h | 26 +++++++++++-- 2 files changed, 61 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c index f30258eebbd2..8d1946556bc0 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c @@ -25,6 +25,7 @@ #include "i915_gem_context.h" #include "i915_gem_ioctls.h" #include "i915_trace.h" +#include "i915_user_extensions.h" enum { FORCE_CPU_RELOC = 1, @@ -271,6 +272,10 @@ struct i915_execbuffer { */ int lut_size; struct hlist_head *buckets; /** ht for relocation handles */ + + struct { + u64 flags; /** Available extensions parameters */ + } extensions; }; #define exec_entry(EB, VMA) (&(EB)->exec[(VMA)->exec_flags - (EB)->flags]) @@ -1915,7 +1920,8 @@ static bool i915_gem_check_execbuffer(struct drm_i915_gem_execbuffer2 *exec) return false; /* Kernel clipping was a DRI1 misfeature */ - if (!(exec->flags & I915_EXEC_FENCE_ARRAY)) { + if (!(exec->flags & (I915_EXEC_FENCE_ARRAY | + I915_EXEC_USE_EXTENSIONS))) { if (exec->num_cliprects || exec->cliprects_ptr) return false; } @@ -2417,6 +2423,33 @@ signal_fence_array(struct i915_execbuffer *eb, } } +static const i915_user_extension_fn execbuf_extensions[] = { +}; + +static int +parse_execbuf2_extensions(struct drm_i915_gem_execbuffer2 *args, + struct i915_execbuffer *eb) +{ + eb->extensions.flags = 0; + + if (!(args->flags & I915_EXEC_USE_EXTENSIONS)) + return 0; + + /* The execbuf2 extension mechanism reuses cliprects_ptr. So we cannot + * have another flag also using it at the same time. + */ + if (eb->args->flags & I915_EXEC_FENCE_ARRAY) + return -EINVAL; + + if (args->num_cliprects != 0) + return -EINVAL; + + return i915_user_extensions(u64_to_user_ptr(args->cliprects_ptr), + execbuf_extensions, + ARRAY_SIZE(execbuf_extensions), + eb); +} + static int i915_gem_do_execbuffer(struct drm_device *dev, struct drm_file *file, @@ -2463,6 +2496,10 @@ i915_gem_do_execbuffer(struct drm_device *dev, if (args->flags & I915_EXEC_IS_PINNED) eb.batch_flags |= I915_DISPATCH_PINNED; + err = parse_execbuf2_extensions(args, &eb); + if (err) + return err; + if (args->flags & I915_EXEC_FENCE_IN) { in_fence = sync_file_get_fence(lower_32_bits(args->rsvd2)); if (!in_fence) diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h index 469dc512cca3..0a99c26730e1 100644 --- a/include/uapi/drm/i915_drm.h +++ b/include/uapi/drm/i915_drm.h @@ -1007,6 +1007,10 @@ struct drm_i915_gem_exec_fence { __u32 flags; }; +enum drm_i915_gem_execbuffer_ext { + DRM_I915_GEM_EXECBUFFER_EXT_MAX /* non-ABI */ +}; + struct drm_i915_gem_execbuffer2 { /** * List of gem_exec_object2 structs @@ -1023,8 +1027,15 @@ struct drm_i915_gem_execbuffer2 { __u32 num_cliprects; /** * This is a struct drm_clip_rect *cliprects if I915_EXEC_FENCE_ARRAY - * is not set. If I915_EXEC_FENCE_ARRAY is set, then this is a - * struct drm_i915_gem_exec_fence *fences. + * & I915_EXEC_USE_EXTENSIONS are not set. + * + * If I915_EXEC_FENCE_ARRAY is set, then this is a pointer to an array + * of struct drm_i915_gem_exec_fence and num_cliprects is the length + * of the array. + * + * If I915_EXEC_USE_EXTENSIONS is set, then this is a pointer to a + * single struct drm_i915_gem_base_execbuffer_ext and num_cliprects is + * 0. */ __u64 cliprects_ptr; #define I915_EXEC_RING_MASK (0x3f) @@ -1142,7 +1153,16 @@ struct drm_i915_gem_execbuffer2 { */ #define I915_EXEC_FENCE_SUBMIT (1 << 20) -#define __I915_EXEC_UNKNOWN_FLAGS (-(I915_EXEC_FENCE_SUBMIT << 1)) +/* + * Setting I915_EXEC_USE_EXTENSIONS implies that + * drm_i915_gem_execbuffer2.cliprects_ptr is treated as a pointer to an linked + * list of i915_user_extension. Each i915_user_extension node is the base of a + * larger structure. The list of supported structures are listed in the + * drm_i915_gem_execbuffer_ext enum. + */ +#define I915_EXEC_USE_EXTENSIONS (1 << 21) + +#define __I915_EXEC_UNKNOWN_FLAGS (-(I915_EXEC_USE_EXTENSIONS<<1)) #define I915_EXEC_CONTEXT_ID_MASK (0xffffffff) #define i915_execbuffer2_set_context_id(eb2, context) \