Searched hist:dcfd5192563909219f6304b4e3e10db071158eef (Results 1 – 2 of 2) sorted by relevance
/openbmc/linux/drivers/soc/mediatek/ |
H A D | mtk-infracfg.c | diff dcfd5192563909219f6304b4e3e10db071158eef Tue Feb 15 12:46:51 CST 2022 Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> soc: mediatek: mtk-infracfg: Disable ACP on MT8192
MT8192 contains an experimental Accelerator Coherency Port implementation, which does not work correctly but was unintentionally enabled by default. For correct operation of the GPU, we must set a chicken bit disabling ACP on MT8192.
Adapted from the following downstream change to the out-of-tree, legacy Mali GPU driver:
https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/2781271/5
Note this change is required for both Panfrost and the legacy kernel driver.
Co-developed-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> Cc: Nick Fan <Nick.Fan@mediatek.com> Cc: Nicolas Boichat <drinkcat@chromium.org> Cc: Chen-Yu Tsai <wenst@chromium.org> Cc: Stephen Boyd <sboyd@kernel.org> Cc: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20220215184651.12168-1-alyssa.rosenzweig@collabora.com Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
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/openbmc/linux/include/linux/soc/mediatek/ |
H A D | infracfg.h | diff dcfd5192563909219f6304b4e3e10db071158eef Tue Feb 15 12:46:51 CST 2022 Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> soc: mediatek: mtk-infracfg: Disable ACP on MT8192
MT8192 contains an experimental Accelerator Coherency Port implementation, which does not work correctly but was unintentionally enabled by default. For correct operation of the GPU, we must set a chicken bit disabling ACP on MT8192.
Adapted from the following downstream change to the out-of-tree, legacy Mali GPU driver:
https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/2781271/5
Note this change is required for both Panfrost and the legacy kernel driver.
Co-developed-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> Cc: Nick Fan <Nick.Fan@mediatek.com> Cc: Nicolas Boichat <drinkcat@chromium.org> Cc: Chen-Yu Tsai <wenst@chromium.org> Cc: Stephen Boyd <sboyd@kernel.org> Cc: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20220215184651.12168-1-alyssa.rosenzweig@collabora.com Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
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