From patchwork Fri Apr 7 09:15:48 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: oscar.mateo@intel.com X-Patchwork-Id: 9669857 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 23F72602A0 for ; Fri, 7 Apr 2017 16:15:38 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 16E0B2861F for ; Fri, 7 Apr 2017 16:15:38 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0BC9B28622; Fri, 7 Apr 2017 16:15:38 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.5 required=2.0 tests=BAYES_00, DATE_IN_PAST_06_12, DKIM_SIGNED, RCVD_IN_DNSWL_MED, T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 9EBBF2861F for ; Fri, 7 Apr 2017 16:15:37 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D6E016EC16; Fri, 7 Apr 2017 16:15:36 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 855386EC0D for ; Fri, 7 Apr 2017 16:15:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=intel.com; i=@intel.com; q=dns/txt; s=intel; t=1491581731; x=1523117731; h=from:to:cc:subject:date:message-id:in-reply-to: references; bh=NIy+Vmf2C1gL4a9mMbYKOFbBbVBPv35J+gFrog17aTE=; b=wgX0k+OxO4MMvD+8VWBuVYehz/Tzw/NMEkYzY2brjygMMsz9RppPiX4V u0JnBnkK2x60uc0xdAEy3O3RIZBYpw==; Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 07 Apr 2017 09:15:30 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos; i="5.37,166,1488873600"; d="scan'208"; a="1132635573" Received: from omateolo-linux.fm.intel.com ([10.1.27.55]) by fmsmga001.fm.intel.com with ESMTP; 07 Apr 2017 09:15:30 -0700 From: Oscar Mateo To: intel-gfx@lists.freedesktop.org Date: Fri, 7 Apr 2017 02:15:48 -0700 Message-Id: <1491556549-2261-5-git-send-email-oscar.mateo@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1491556549-2261-1-git-send-email-oscar.mateo@intel.com> References: <1491556549-2261-1-git-send-email-oscar.mateo@intel.com> Cc: Paulo Zanoni , Rodrigo Vivi Subject: [Intel-gfx] [PATCH 4/5] drm/i915: Split the engine info table in two levels, using class + instance X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP There are some properties that logically belong to the engine class, and some that belong to the engine instance. Make it explicit. v2: Commit message (Tvrtko) v3: - Rebased - Exec/uabi id should be per instance (Chris) v4: - Rebased - Avoid re-ordering fields for smaller diff (Tvrtko) - Bug on oob access to the class array (Michal) Cc: Tvrtko Ursulin Cc: Paulo Zanoni Cc: Rodrigo Vivi Cc: Chris Wilson Cc: Daniele Ceraolo Spurio Cc: Michal Wajdeczko Signed-off-by: Oscar Mateo --- drivers/gpu/drm/i915/intel_engine_cs.c | 65 ++++++++++++++++++++++------------ 1 file changed, 42 insertions(+), 23 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c index e40355c..4e2b5da 100644 --- a/drivers/gpu/drm/i915/intel_engine_cs.c +++ b/drivers/gpu/drm/i915/intel_engine_cs.c @@ -26,71 +26,84 @@ #include "intel_ringbuffer.h" #include "intel_lrc.h" -static const struct engine_info { +struct engine_class_info { const char *name; - unsigned int exec_id; + int (*init_legacy)(struct intel_engine_cs *engine); + int (*init_execlists)(struct intel_engine_cs *engine); +}; + +static const struct engine_class_info intel_engine_classes[] = { + [RENDER_CLASS] = { + .name = "rcs", + .init_execlists = logical_render_ring_init, + .init_legacy = intel_init_render_ring_buffer, + }, + [COPY_ENGINE_CLASS] = { + .name = "bcs", + .init_execlists = logical_xcs_ring_init, + .init_legacy = intel_init_blt_ring_buffer, + }, + [VIDEO_DECODE_CLASS] = { + .name = "vcs", + .init_execlists = logical_xcs_ring_init, + .init_legacy = intel_init_bsd_ring_buffer, + }, + [VIDEO_ENHANCEMENT_CLASS] = { + .name = "vecs", + .init_execlists = logical_xcs_ring_init, + .init_legacy = intel_init_vebox_ring_buffer, + }, +}; + +struct engine_info { unsigned int hw_id; + unsigned int exec_id; u8 class; u8 instance; u32 mmio_base; unsigned irq_shift; - int (*init_legacy)(struct intel_engine_cs *engine); - int (*init_execlists)(struct intel_engine_cs *engine); -} intel_engines[] = { +}; + +static const struct engine_info intel_engines[] = { [RCS] = { - .name = "rcs", .hw_id = RCS_HW, .exec_id = I915_EXEC_RENDER, .class = RENDER_CLASS, .instance = 0, .mmio_base = RENDER_RING_BASE, .irq_shift = GEN8_RCS_IRQ_SHIFT, - .init_execlists = logical_render_ring_init, - .init_legacy = intel_init_render_ring_buffer, }, [BCS] = { - .name = "bcs", .hw_id = BCS_HW, .exec_id = I915_EXEC_BLT, .class = COPY_ENGINE_CLASS, .instance = 0, .mmio_base = BLT_RING_BASE, .irq_shift = GEN8_BCS_IRQ_SHIFT, - .init_execlists = logical_xcs_ring_init, - .init_legacy = intel_init_blt_ring_buffer, }, [VCS] = { - .name = "vcs", .hw_id = VCS_HW, .exec_id = I915_EXEC_BSD, .class = VIDEO_DECODE_CLASS, .instance = 0, .mmio_base = GEN6_BSD_RING_BASE, .irq_shift = GEN8_VCS1_IRQ_SHIFT, - .init_execlists = logical_xcs_ring_init, - .init_legacy = intel_init_bsd_ring_buffer, }, [VCS2] = { - .name = "vcs", .hw_id = VCS2_HW, .exec_id = I915_EXEC_BSD, .class = VIDEO_DECODE_CLASS, .instance = 1, .mmio_base = GEN8_BSD2_RING_BASE, .irq_shift = GEN8_VCS2_IRQ_SHIFT, - .init_execlists = logical_xcs_ring_init, - .init_legacy = intel_init_bsd_ring_buffer, }, [VECS] = { - .name = "vecs", .hw_id = VECS_HW, .exec_id = I915_EXEC_VEBOX, .class = VIDEO_ENHANCEMENT_CLASS, .instance = 0, .mmio_base = VEBOX_RING_BASE, .irq_shift = GEN8_VECS_IRQ_SHIFT, - .init_execlists = logical_xcs_ring_init, - .init_legacy = intel_init_vebox_ring_buffer, }, }; @@ -99,8 +112,12 @@ enum intel_engine_id id) { const struct engine_info *info = &intel_engines[id]; + const struct engine_class_info *class_info; struct intel_engine_cs *engine; + GEM_BUG_ON(info->class > ARRAY_SIZE(intel_engine_classes)); + class_info = &intel_engine_classes[info->class]; + GEM_BUG_ON(dev_priv->engine[id]); engine = kzalloc(sizeof(*engine), GFP_KERNEL); if (!engine) @@ -109,7 +126,7 @@ engine->id = id; engine->i915 = dev_priv; WARN_ON(snprintf(engine->name, sizeof(engine->name), "%s%u", - info->name, info->instance) >= sizeof(engine->name)); + class_info->name, info->instance) >= sizeof(engine->name)); engine->exec_id = info->exec_id; engine->hw_id = engine->guc_id = info->hw_id; engine->mmio_base = info->mmio_base; @@ -190,12 +207,14 @@ int intel_engines_init(struct drm_i915_private *dev_priv) int err = 0; for_each_engine(engine, dev_priv, id) { + const struct engine_class_info *class_info = + &intel_engine_classes[engine->class]; int (*init)(struct intel_engine_cs *engine); if (i915.enable_execlists) - init = intel_engines[id].init_execlists; + init = class_info->init_execlists; else - init = intel_engines[id].init_legacy; + init = class_info->init_legacy; if (!init) { kfree(engine); dev_priv->engine[id] = NULL;