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Sun, 01 Jun 2025 15:18:51 -0700 (PDT) Received: from [10.0.0.88] ([2607:fea8:bad7:5400:5458:c6fd:17d9:9820]) by smtp.gmail.com with ESMTPSA id af79cd13be357-7d09a1951casm536030285a.68.2025.06.01.15.18.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 01 Jun 2025 15:18:49 -0700 (PDT) From: Abdulrasaq Lawani Date: Sun, 01 Jun 2025 18:18:47 -0400 Subject: [PATCH v4] drm: add overview diagram for drm stack Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250601-drm-doc-updates-v4-1-e7c46821e009@gmail.com> X-B4-Tracking: v=1; b=H4sIAMbRPGgC/3XNwQ6CMBAE0F8hPbum3VJAT/6H8YDsFpqIkBaJh vDvFk5E4nEmeTOTCOwdB3FOJuF5dMF1zxjSQyKqpnzWDI5iFijRSIMI5FugroJXT+XAAXRWZDa jtFCIIqres3XvdfF6i7lxYej8Zz0Y1dL+3xoVKCDFlkyap/JOl7ot3eNYda1Ytkbcer33CBLYq JysMljZ7Nfrrc/3Xsd/U/ApLwutSOqtn+f5CyLdqyguAQAA X-Change-ID: 20250522-drm-doc-updates-3686f6d48122 To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Jonathan Corbet Cc: dri-devel@lists.freedesktop.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Abdulrasaq Lawani X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1748816329; l=3417; i=abdulrasaqolawani@gmail.com; s=20250522; h=from:subject:message-id; bh=q5bj5dHeAF0jw1D9B79SOZIYQ/2vhai+oYehV5QXNxk=; b=sjsMrBAa7gu2PoEDTIe+RBXPWGT4CuRLEafyGtWYHvOlDONiQzwpYYmo5l0FI/+XGq+fkjsus pSEv0WevVJoBsq2PwUBQZtAeEHuTadQ3flbJV7IY2822TGRCzWuLpqn X-Developer-Key: i=abdulrasaqolawani@gmail.com; a=ed25519; pk=LCvBseqd+rEj8B1vNEnSSfNcqQwMsfWx1DGDT1LYddo= Add an overview diagram of Linux DRM architecture for graphics and compute to introduction.rst Signed-off-by: Abdulrasaq Lawani --- Changes in v4: - Ensure patch description describe diff adding overview diagram. - Link to v3: https://lore.kernel.org/r/20250527-drm-doc-updates-v3-1-58e97a831d03@gmail.com Changes in v3: - revert the promotion of the overview diagram header - Link to v2: https://lore.kernel.org/r/20250523-drm-doc-updates-v2-0-e517df152cf6@gmail.com Changes in v2: - Update the overview diagram to display correctly by putting in a literal block. - Also update the overview section diagram to a higher order. - Ensured docs are successfully rendering by building for htmldocs and pdfdocs. - Rendered pages are okay on html and pdf. - Link to v1: https://lore.kernel.org/r/20250522-drm-doc-updates-v1-1-d1efd54740bd@gmail.com --- Documentation/gpu/introduction.rst | 40 +++++++++++++++++++++++++++++++++++++- 1 file changed, 39 insertions(+), 1 deletion(-) diff --git a/Documentation/gpu/introduction.rst b/Documentation/gpu/introduction.rst index 3cd0c8860b949408ed570d3f9384edd5f03df002..a8d3f953a470180b395ec52a45d0f3f4561424e0 100644 --- a/Documentation/gpu/introduction.rst +++ b/Documentation/gpu/introduction.rst @@ -14,7 +14,45 @@ including the TTM memory manager, output configuration and mode setting, and the new vblank internals, in addition to all the regular features found in current kernels. -[Insert diagram of typical DRM stack here] +Overview of the Linux DRM Architecture +-------------------------------------- +:: + + +-----------------------------+ + | User-space Apps | + | (Games, Browsers, ML, etc.) | + +-----------------------------+ + | + v + +---------------------------------------+ + | Graphics APIs | Compute APIs | + | (OpenGL, Vulkan) | (OpenCL, CUDA) | + +---------------------------------------+ + | | + v v + +---------------------+ +-----------------------+ + | User-space Driver | | Compute Runtime | + | (Mesa, AMD/NVIDIA) | | (OpenCL, CUDA, ROCm) | + +---------------------+ +-----------------------+ + | | + +--------+----------+ + | + v + +-----------------------+ + | libdrm (DRM API) | + +-----------------------+ + | + v + +-------------------------------------------+ + | Kernel DRM/KMS Driver (i915, amdgpu, | + | nouveau, etc.) | + +-------------------------------------------+ + | | + v v + +----------------+ +-------------------+ + | GPU Display HW | | GPU Compute Units | + +----------------+ +-------------------+ + Style Guidelines ================ --- base-commit: 4d07f5440d7afee27dada528aaf5230e760531cb change-id: 20250522-drm-doc-updates-3686f6d48122 Best regards, -- Abdulrasaq Lawani