From patchwork Mon Mar 6 10:28:48 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nirmoy Das X-Patchwork-Id: 13160910 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id CC99DC61DA4 for ; Mon, 6 Mar 2023 10:29:03 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 040FD10E1E0; Mon, 6 Mar 2023 10:28:59 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1AF4310E0AE; Mon, 6 Mar 2023 10:28:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1678098538; x=1709634538; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=zgLNq/paUsqMZFb1FBSNxkKwFW13p02FUzPpBRxF7fg=; b=ap1Re0zuZ8jvFiAuxeTLyQwGZtd9V+txpPoJu3smWlcOQjM6fFQ8iSHC 5iSZsNh6j4yysWwjQ35V25aaAF3pWrv7tw/r1cfG5HkLFac3NS/yvZg8a KxunUHI7nscMHgD/jjeADiHUFHCku3EQJ1csa7IgXAi41Guu9C/LubxzT GXy6nTCj/YHcZjP0coCA0+HMZ0JCup8UnsqHATIiKL3W0Va7QEnVBgXos MwwE3LrT+NlEmDgDLAxK6twsGtDXSmeU9579ZWRIsQ76JBMBX+ftUYGaL VgFfQocVa3b06xN5OZ/Fpf2zT0CB9eAtxb0Y3jvLbvUvH0eoWrwu8BcSC w==; X-IronPort-AV: E=McAfee;i="6500,9779,10640"; a="332995593" X-IronPort-AV: E=Sophos;i="5.98,236,1673942400"; d="scan'208";a="332995593" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Mar 2023 02:28:57 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10640"; a="676119850" X-IronPort-AV: E=Sophos;i="5.98,236,1673942400"; d="scan'208";a="676119850" Received: from nirmoyda-desk.igk.intel.com ([10.102.42.231]) by orsmga002-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Mar 2023 02:28:56 -0800 From: Nirmoy Das To: intel-gfx@lists.freedesktop.org Subject: [PATCH 1/3] drm/i915: Set I915_BO_ALLOC_USER for framebuffer Date: Mon, 6 Mar 2023 11:28:48 +0100 Message-Id: <20230306102850.18299-1-nirmoy.das@intel.com> X-Mailer: git-send-email 2.39.0 MIME-Version: 1.0 Organization: Intel Deutschland GmbH, Registered Address: Am Campeon 10, 85579 Neubiberg, Germany, Commercial Register: Amtsgericht Muenchen HRB 186928 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: dri-devel@lists.freedesktop.org, Nirmoy Das Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Framebuffer is exposed to userspace so set I915_BO_ALLOC_USER flag for it. This also make sure that ttm allocates offset for lmem objects. Signed-off-by: Nirmoy Das --- drivers/gpu/drm/i915/display/intel_dpt.c | 4 +++- drivers/gpu/drm/i915/display/intel_fbdev.c | 3 ++- drivers/gpu/drm/i915/display/intel_plane_initial.c | 3 ++- 3 files changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dpt.c b/drivers/gpu/drm/i915/display/intel_dpt.c index ad1a37b515fb..2e6238881860 100644 --- a/drivers/gpu/drm/i915/display/intel_dpt.c +++ b/drivers/gpu/drm/i915/display/intel_dpt.c @@ -254,7 +254,9 @@ intel_dpt_create(struct intel_framebuffer *fb) size = round_up(size * sizeof(gen8_pte_t), I915_GTT_PAGE_SIZE); - dpt_obj = i915_gem_object_create_lmem(i915, size, I915_BO_ALLOC_CONTIGUOUS); + dpt_obj = i915_gem_object_create_lmem(i915, size, + I915_BO_ALLOC_CONTIGUOUS | + I915_BO_ALLOC_USER); if (IS_ERR(dpt_obj) && i915_ggtt_has_aperture(to_gt(i915)->ggtt)) dpt_obj = i915_gem_object_create_stolen(i915, size); if (IS_ERR(dpt_obj) && !HAS_LMEM(i915)) { diff --git a/drivers/gpu/drm/i915/display/intel_fbdev.c b/drivers/gpu/drm/i915/display/intel_fbdev.c index 3659350061a7..98ae3a3a986a 100644 --- a/drivers/gpu/drm/i915/display/intel_fbdev.c +++ b/drivers/gpu/drm/i915/display/intel_fbdev.c @@ -163,7 +163,8 @@ static int intelfb_alloc(struct drm_fb_helper *helper, obj = ERR_PTR(-ENODEV); if (HAS_LMEM(dev_priv)) { obj = i915_gem_object_create_lmem(dev_priv, size, - I915_BO_ALLOC_CONTIGUOUS); + I915_BO_ALLOC_CONTIGUOUS | + I915_BO_ALLOC_USER); } else { /* * If the FB is too big, just don't use it since fbdev is not very diff --git a/drivers/gpu/drm/i915/display/intel_plane_initial.c b/drivers/gpu/drm/i915/display/intel_plane_initial.c index bb6ea7de5c61..4a3680f6a3f5 100644 --- a/drivers/gpu/drm/i915/display/intel_plane_initial.c +++ b/drivers/gpu/drm/i915/display/intel_plane_initial.c @@ -110,7 +110,8 @@ initial_plane_vma(struct drm_i915_private *i915, size * 2 > i915->dsm.usable_size) return NULL; - obj = i915_gem_object_create_region_at(mem, phys_base, size, 0); + obj = i915_gem_object_create_region_at(mem, phys_base, size, + I915_BO_ALLOC_USER); if (IS_ERR(obj)) return NULL; From patchwork Mon Mar 6 10:28:49 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nirmoy Das X-Patchwork-Id: 13160911 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 02AB3C61DA4 for ; Mon, 6 Mar 2023 10:29:09 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id ED7CB10E205; Mon, 6 Mar 2023 10:29:00 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id CBC1D10E0AE; Mon, 6 Mar 2023 10:28:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1678098538; x=1709634538; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=sW8IhlWIeROU2d4Zt4BL332Myyi+bypEEdT0KX9wnNw=; b=DkeAY55Z89E4AHmIdXneYNr2jinDFqJk5JXXudz50qaT+S0WZcYQp3/m 83z6ftQwoE0cp+3KBRawFpUof77JnEK7pvg6ZuHBIQ6f/0wVxk2cijOyV PvTaI5u7Syx4T4HKNWd7l4WyvM2B0gcK1o6UKIRLffoajvBkUddoHHi20 bCc3AHMBM0ZZzk3F0959K+GrrUnXH36BeM4Z+IVYiA/9GcC/rgBtZOk5A 32DLXLWTh3WBt9OCxolR5VZqM23Sl/wIASNS1iXBQYsNHmafCoZeUbkHs U13opJq6+ils1++srEX57Qb4ZKY98mHGEMNJy7ZV1WW57KmL/RFmiDI6m w==; X-IronPort-AV: E=McAfee;i="6500,9779,10640"; a="332995597" X-IronPort-AV: E=Sophos;i="5.98,236,1673942400"; d="scan'208";a="332995597" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Mar 2023 02:28:58 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10640"; a="676119853" X-IronPort-AV: E=Sophos;i="5.98,236,1673942400"; d="scan'208";a="676119853" Received: from nirmoyda-desk.igk.intel.com ([10.102.42.231]) by orsmga002-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Mar 2023 02:28:57 -0800 From: Nirmoy Das To: intel-gfx@lists.freedesktop.org Subject: [PATCH 2/3] drm/i915: Add a helper func for gem obj mmap Date: Mon, 6 Mar 2023 11:28:49 +0100 Message-Id: <20230306102850.18299-2-nirmoy.das@intel.com> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230306102850.18299-1-nirmoy.das@intel.com> References: <20230306102850.18299-1-nirmoy.das@intel.com> MIME-Version: 1.0 Organization: Intel Deutschland GmbH, Registered Address: Am Campeon 10, 85579 Neubiberg, Germany, Commercial Register: Amtsgericht Muenchen HRB 186928 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: dri-devel@lists.freedesktop.org, Nirmoy Das Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Move gem obj mmap code to i915_gem_object_mmap() so that this can be used by others. Signed-off-by: Nirmoy Das --- drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c | 20 ++--------------- drivers/gpu/drm/i915/gem/i915_gem_mman.c | 25 ++++++++++++++++++++++ drivers/gpu/drm/i915/gem/i915_gem_mman.h | 1 + 3 files changed, 28 insertions(+), 18 deletions(-) diff --git a/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c index fd556a076d05..831dd8ebf819 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c @@ -12,6 +12,7 @@ #include #include "gem/i915_gem_dmabuf.h" +#include "gem/i915_gem_mman.h" #include "i915_drv.h" #include "i915_gem_object.h" #include "i915_scatterlist.h" @@ -94,27 +95,10 @@ static void i915_gem_dmabuf_vunmap(struct dma_buf *dma_buf, static int i915_gem_dmabuf_mmap(struct dma_buf *dma_buf, struct vm_area_struct *vma) { struct drm_i915_gem_object *obj = dma_buf_to_obj(dma_buf); - struct drm_i915_private *i915 = to_i915(obj->base.dev); - int ret; dma_resv_assert_held(dma_buf->resv); - if (obj->base.size < vma->vm_end - vma->vm_start) - return -EINVAL; - - if (HAS_LMEM(i915)) - return drm_gem_prime_mmap(&obj->base, vma); - - if (!obj->base.filp) - return -ENODEV; - - ret = call_mmap(obj->base.filp, vma); - if (ret) - return ret; - - vma_set_file(vma, obj->base.filp); - - return 0; + return i915_gem_object_mmap(obj, vma); } static int i915_gem_begin_cpu_access(struct dma_buf *dma_buf, enum dma_data_direction direction) diff --git a/drivers/gpu/drm/i915/gem/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/i915_gem_mman.c index 2aac6bf78740..d378720ca626 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_mman.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_mman.c @@ -11,6 +11,8 @@ #include +#include "gem/i915_gem_lmem.h" + #include "gt/intel_gt.h" #include "gt/intel_gt_requests.h" @@ -1043,6 +1045,29 @@ int i915_gem_mmap(struct file *filp, struct vm_area_struct *vma) return 0; } +int i915_gem_object_mmap(struct drm_i915_gem_object *obj, struct vm_area_struct *vma) +{ + struct drm_i915_private *i915 = to_i915(obj->base.dev); + int ret; + + if (obj->base.size < vma->vm_end - vma->vm_start) + return -EINVAL; + + if (HAS_LMEM(i915)) + return drm_gem_prime_mmap(&obj->base, vma); + + if (obj->base.filp) { + ret = call_mmap(obj->base.filp, vma); + if (ret) + return ret; + + vma_set_file(vma, obj->base.filp); + return 0; + } + + return -ENODEV; +} + #if IS_ENABLED(CONFIG_DRM_I915_SELFTEST) #include "selftests/i915_gem_mman.c" #endif diff --git a/drivers/gpu/drm/i915/gem/i915_gem_mman.h b/drivers/gpu/drm/i915/gem/i915_gem_mman.h index 1fa91b3033b3..303e81ddc5ba 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_mman.h +++ b/drivers/gpu/drm/i915/gem/i915_gem_mman.h @@ -30,4 +30,5 @@ void i915_gem_object_release_mmap_gtt(struct drm_i915_gem_object *obj); void i915_gem_object_runtime_pm_release_mmap_offset(struct drm_i915_gem_object *obj); void i915_gem_object_release_mmap_offset(struct drm_i915_gem_object *obj); +int i915_gem_object_mmap(struct drm_i915_gem_object *obj, struct vm_area_struct *vma); #endif From patchwork Mon Mar 6 10:28:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nirmoy Das X-Patchwork-Id: 13160912 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id B7E94C678D4 for ; Mon, 6 Mar 2023 10:29:12 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2087610E20E; Mon, 6 Mar 2023 10:29:02 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2468810E1EB; Mon, 6 Mar 2023 10:29:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1678098540; x=1709634540; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=o98yHmZBDxX8kIzndpSRhxsC3uJh1+fVE9iG80yOceU=; b=hMiJ3l9LWzLVKbEcbHs8SPuMaQVZgGNBL5QT7tbs3UZ7+R9gDDoYZv0c S8YzBU99zmXeKUTVOnm2LGm5BXpCrFdDBhVhLpfJRMnKPz2+SeiNLed2F Zx49JkI1QTKw9rSu+sgpg64emuJrRE4lB1PgC/0z5inAJkBTc8NmDFlcn 2rXSz1TpFGTpiUck4wvsQr3NIoaK75z8thVzUkLIid5ruoEmcY6tKF8BJ o41J7YfkEmXR19Om+JudzcMYLnG0QggcRoNUIh6wIFT5cr4iq640dOBLz qGH/me1nLNY3goIUk1dS8HbEwJOStj4MNV++5kw97R07mrTJ7hWR9z/vv Q==; X-IronPort-AV: E=McAfee;i="6500,9779,10640"; a="332995600" X-IronPort-AV: E=Sophos;i="5.98,236,1673942400"; d="scan'208";a="332995600" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Mar 2023 02:28:59 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10640"; a="676119856" X-IronPort-AV: E=Sophos;i="5.98,236,1673942400"; d="scan'208";a="676119856" Received: from nirmoyda-desk.igk.intel.com ([10.102.42.231]) by orsmga002-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Mar 2023 02:28:58 -0800 From: Nirmoy Das To: intel-gfx@lists.freedesktop.org Subject: [PATCH RFC 3/3] drm/i915/display: Implement fb_mmap callback function Date: Mon, 6 Mar 2023 11:28:50 +0100 Message-Id: <20230306102850.18299-3-nirmoy.das@intel.com> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230306102850.18299-1-nirmoy.das@intel.com> References: <20230306102850.18299-1-nirmoy.das@intel.com> MIME-Version: 1.0 Organization: Intel Deutschland GmbH, Registered Address: Am Campeon 10, 85579 Neubiberg, Germany, Commercial Register: Amtsgericht Muenchen HRB 186928 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: dri-devel@lists.freedesktop.org, Nirmoy Das Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" If stolen memory allocation fails for fbdev, the driver will fallback to system memory. Calculation of smem_start is wrong for such framebuffer objs if the platform comes with no gmadr or no aperture. Solve this by adding fb_mmap callback which also gives driver more control. Signed-off-by: Nirmoy Das --- drivers/gpu/drm/i915/display/intel_fbdev.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_fbdev.c b/drivers/gpu/drm/i915/display/intel_fbdev.c index 98ae3a3a986a..ed0f9e2af3ed 100644 --- a/drivers/gpu/drm/i915/display/intel_fbdev.c +++ b/drivers/gpu/drm/i915/display/intel_fbdev.c @@ -40,8 +40,10 @@ #include #include #include +#include #include "gem/i915_gem_lmem.h" +#include "gem/i915_gem_mman.h" #include "i915_drv.h" #include "intel_display_types.h" @@ -120,6 +122,23 @@ static int intel_fbdev_pan_display(struct fb_var_screeninfo *var, return ret; } +#define to_intel_fbdev(x) container_of(x, struct intel_fbdev, helper) +static int intel_fbdev_mmap(struct fb_info *info, struct vm_area_struct *vma) +{ + struct intel_fbdev *fbdev = to_intel_fbdev(info->par); + struct drm_gem_object *bo = drm_gem_fb_get_obj(&fbdev->fb->base, 0); + struct drm_i915_gem_object *obj = to_intel_bo(bo); + struct drm_device *dev = fbdev->helper.dev; + + vma->vm_page_prot = + pgprot_writecombine(vm_get_page_prot(vma->vm_flags)); + + if (obj->stolen) + return vm_iomap_memory(vma, info->fix.smem_start, + info->fix.smem_len); + + return i915_gem_object_mmap(obj, vma); +} static const struct fb_ops intelfb_ops = { .owner = THIS_MODULE, DRM_FB_HELPER_DEFAULT_OPS, @@ -131,6 +150,7 @@ static const struct fb_ops intelfb_ops = { .fb_imageblit = drm_fb_helper_cfb_imageblit, .fb_pan_display = intel_fbdev_pan_display, .fb_blank = intel_fbdev_blank, + .fb_mmap = intel_fbdev_mmap, }; static int intelfb_alloc(struct drm_fb_helper *helper,