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Mon, 08 Sep 2025 07:12:26 -0700 (PDT) X-Google-Smtp-Source: AGHT+IHpoq0ydxeRV3bqT1pPZ0asQ1BYD8GDn9+GYnc0QJIZ3/e+Jo6uQtsHmaaVuWuQ1Ptp5qrMOA== X-Received: by 2002:a17:90b:4c12:b0:329:f110:fe9e with SMTP id 98e67ed59e1d1-32d43f5bc76mr11240780a91.17.1757340746005; Mon, 08 Sep 2025 07:12:26 -0700 (PDT) Received: from zeus ([2405:6580:83a0:7600:6e93:a15a:9134:ae1f]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-32d89f32ebfsm2937596a91.0.2025.09.08.07.12.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 08 Sep 2025 07:12:25 -0700 (PDT) From: Ryosuke Yasuoka To: zack.rusin@broadcom.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, ian.forbes@broadcom.com, jfalempe@redhat.com Cc: Ryosuke Yasuoka , bcm-kernel-feedback-list@broadcom.com, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: [PATCH drm-misc-next v2 0/1] add drm_panic_support for vmwgfx-stdu Date: Mon, 8 Sep 2025 23:11:33 +0900 Message-ID: <20250908141152.221291-1-ryasuoka@redhat.com> X-Mailer: git-send-email 2.51.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add drm_panic support for stdu in vmwgfx. This patch was tested in a VM with VMSVGA on Virtual Box. I got 2 type of suggestions from reviewers: 1. Write the panic screen to guest_memory_bo and send dirty/flush command 2. Write it to VRAM directly and then switch back to legacy mode Since option 2 is simpler than another one and ldu might be able to re-use some codes if ldu supports drm_panic, I re-write this v2 patch with option 2. Ryosuke Yasuoka (1): drm/vmwgfx: add drm_panic support for stdu drivers/gpu/drm/vmwgfx/vmwgfx_cmd.c | 73 ++++++++++++++++++++++++++++ drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | 18 +++++++ drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 9 ++++ drivers/gpu/drm/vmwgfx/vmwgfx_kms.h | 1 + drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c | 43 ++++++++++++++++ drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c | 34 +++++++++++++ 6 files changed, 178 insertions(+) base-commit: 306c8959b5fdfdc3900aebe4e56257a349f5765f -- 2.51.0