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Tue, 08 Sep 2020 08:18:57 -0700 (PDT) From: Neil Armstrong To: robh@kernel.org, tomeu.vizoso@collabora.com, steven.price@arm.com, alyssa.rosenzweig@collabora.com Subject: [PATCH 0/5] drm/panfrost: add Amlogic integration quirks Date: Tue, 8 Sep 2020 17:18:48 +0200 Message-Id: <20200908151853.4837-1-narmstrong@baylibre.com> X-Mailer: git-send-email 2.22.0 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200908_111859_197064_F2ADC302 X-CRM114-Status: GOOD ( 10.82 ) X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:442 listed in] [list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-amlogic@lists.infradead.org, Neil Armstrong , linux-arm-kernel@lists.infradead.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+patchwork-linux-amlogic=patchwork.kernel.org@lists.infradead.org The T820, G31 & G52 GPUs integrated by Amlogic in the respective GXM, G12A/SM1 & G12B SoCs needs a quirk in the PWR registers at the GPU reset time. The coherency integration of the IOMMU in the Mali-G52 found in the Amlogic G12B SoCs is broken and leads to constant and random faults from the IOMMU. This serie adds the necessary quirks for the Amlogic integrated GPUs only. Neil Armstrong (5): iommu/io-pgtable-arm: Add BROKEN_NS quirk to disable shareability on ARM LPAE drm/panfrost: add support specifying pgtbl quirks drm/panfrost: add support for reset quirk drm/panfrost: add amlogic reset quirk callback drm/panfrost: add Amlogic GPU integration quirks drivers/gpu/drm/panfrost/panfrost_device.h | 6 ++++++ drivers/gpu/drm/panfrost/panfrost_drv.c | 18 ++++++++++++++++++ drivers/gpu/drm/panfrost/panfrost_gpu.c | 17 +++++++++++++++++ drivers/gpu/drm/panfrost/panfrost_gpu.h | 2 ++ drivers/gpu/drm/panfrost/panfrost_mmu.c | 1 + drivers/gpu/drm/panfrost/panfrost_regs.h | 3 +++ drivers/iommu/io-pgtable-arm.c | 7 ++++--- include/linux/io-pgtable.h | 4 ++++ 8 files changed, 55 insertions(+), 3 deletions(-)