dri-devel February 2020

dri-devel@lists.freedesktop.org

302 participants
679 discussions

[PATCH] drm/cirrus: add drm_driver.release callback.
by Gerd Hoffmann 07 Feb '20

07 Feb '20

Move final cleanups from cirrus_pci_remove() to the new callback. Add drm_atomic_helper_shutdown() call to cirrus_pci_remove(). Signed-off-by: Gerd Hoffmann <kraxel(a)redhat.com> --- drivers/gpu/drm/cirrus/cirrus.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/cirrus/cirrus.c b/drivers/gpu/drm/cirrus/cirrus.c index a91fb0d7282c..39a9e964aac9 100644 --- a/drivers/gpu/drm/cirrus/cirrus.c +++ b/drivers/gpu/drm/cirrus/cirrus.c @@ -502,… [View More]

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[PATCH v2] drm/bochs: downgrade pci_request_region failure from error to warning
by Gerd Hoffmann 07 Feb '20

07 Feb '20

Shutdown of firmware framebuffer has a bunch of problems. Because of this the framebuffer region might still be reserved even after drm_fb_helper_remove_conflicting_pci_framebuffers() returned. Don't consider pci_request_region() failure for the framebuffer region as fatal error to workaround this issue. Reported-by: Marek Marczykowski-Górecki <marmarek(a)invisiblethingslab.com> Signed-off-by: Gerd Hoffmann <kraxel(a)redhat.com> --- drivers/gpu/drm/bochs/bochs_hw.c | 3 +-- 1 … [View More]

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[PATCH 0/4] drm/dp,i915: eDP DPCD backlight control detection fixes
by Lyude Paul 07 Feb '20

07 Feb '20

Unfortunately, it turned out that the DPCD is also not a reliable way of probing for DPCD backlight support as some panels will lie and say they have DPCD backlight controls when they don't actually. So, revert back to the old behavior and add a bunch of EDID-based DP quirks for the panels that we know need this. As you might have already guessed, OUI quirks didn't seem to be a very safe bet for these panels due to them not having their device IDs filled out. Lyude Paul (4): Revert "drm/… [View More]

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[PULL] drm-misc-next-fixes
by Maarten Lankhorst 07 Feb '20

07 Feb '20

drm-misc-next-fixes-2020-02-07: drm-misc-next fixes for v5.6: - Fix build error in drm/edid. - Plug close-after-free race in vgem_gem_create. - Handle CONFIG_DMA_API_DEBUG_SG better in drm/msm. The following changes since commit d7ca2d19c751b6715e9cb899a6b94f47b3499d02: Merge tag 'drm-msm-next-2020-01-14' of https://gitlab.freedesktop.org/drm/msm into drm-next (2020-01-20 14:09:43 +1000) are available in the Git repository at: git://anongit.freedesktop.org/drm/drm-misc tags/drm-misc-next-… [View More]

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[PULL] drm-misc-fixes
by Maarten Lankhorst 07 Feb '20

07 Feb '20

drm-misc-fixes-2020-02-07: Fixes for v5.6: - Revert allow_fb_modifiers in sun4i, as it causes a regression for DE2 and DE3. - Fix null pointer deref in drm_dp_mst_process_up_req(). The following changes since commit bdefca2d8dc0f80bbe49e08bf52a717146490706: drm/panfrost: Add the panfrost_gem_mapping concept (2020-01-21 10:32:55 -0600) are available in the Git repository at: git://anongit.freedesktop.org/drm/drm-misc tags/drm-misc-fixes-2020-02-07 for you to fetch changes up to … [View More]

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[PATCH v2] drm/virtio: fix ring free check
by Gerd Hoffmann 07 Feb '20

07 Feb '20

If the virtio device supports indirect ring descriptors we need only one ring entry for the whole command. Take that into account when checking whenever the virtqueue has enough free entries for our command. Signed-off-by: Gerd Hoffmann <kraxel(a)redhat.com> --- drivers/gpu/drm/virtio/virtgpu_drv.h | 1 + drivers/gpu/drm/virtio/virtgpu_debugfs.c | 1 + drivers/gpu/drm/virtio/virtgpu_kms.c | 3 +++ drivers/gpu/drm/virtio/virtgpu_vq.c | 3 +++ 4 files changed, 8 insertions(+)… [View More]

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[PATCH] drm/virtio: fix ring free check
by Gerd Hoffmann 07 Feb '20

07 Feb '20

If the virtio device supports indirect ring descriptors we need only one ring entry for the whole command. Take that into account when checking whenever the virtqueue has enough free entries for our command. Signed-off-by: Gerd Hoffmann <kraxel(a)redhat.com> --- drivers/gpu/drm/virtio/virtgpu_vq.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c index 41e475fbd67b..a2ec09dba530 100644 -… [View More]

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[PATCH] MIPS: c-r4k: Invalidate BMIPS5000 ZSCM prefetch lines
by Kamal Dasu 07 Feb '20

07 Feb '20

Zephyr secondary cache is 256KB, 128B lines. 32B sectors. A secondary cache line can contain two instruction cache lines (64B), or four data cache lines (32B). Hardware prefetch Cache detects stream access, and prefetches ahead of processor access. Add support to inavalidate BMIPS5000 cpu zephyr secondary cache module (ZSCM) on DMA from device so that data returned is coherent during DMA read operations. Signed-off-by: Kamal Dasu <kdasu.kdev(a)gmail.com> --- arch/mips/mm/c-r4k.c | 30 +++… [View More]

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[PATCH v3 0/7] Add dts for mt8183 GPU (and misc panfrost patches)
by Nicolas Boichat 07 Feb '20

07 Feb '20

Hi! Follow-up on the v2: https://patchwork.kernel.org/cover/11322801/ . The main purpose of this series is to upstream the dts change and the binding document, but I wanted to see how far I could probe the GPU, to check that the binding is indeed correct. The rest of the patches are RFC/work-in-progress, but I think some of them could already be picked up. So this is tested on MT8183 with a chromeos-4.19 kernel, and a ton of backports to get the latest panfrost driver (I should probably try … [View More]on linux-next at some point but this was the path of least resistance). I tested it as a module as it's more challenging (originally probing would work built-in, on boot, but not as a module, as I didn't have the power domain changes, and all power domains are on by default during boot). Probing logs looks like this, currently. They look sane. [ 501.319728] panfrost 13040000.gpu: clock rate = 511999970 [ 501.320041] panfrost 13040000.gpu: Linked as a consumer to regulator.14 [ 501.320102] panfrost 13040000.gpu: Linked as a consumer to regulator.31 [ 501.320651] panfrost 13040000.gpu: Linked as a consumer to genpd:0:13040000.gpu [ 501.320954] panfrost 13040000.gpu: Linked as a consumer to genpd:1:13040000.gpu [ 501.321062] panfrost 13040000.gpu: Linked as a consumer to genpd:2:13040000.gpu [ 501.321734] panfrost 13040000.gpu: mali-g72 id 0x6221 major 0x0 minor 0x3 status 0x0 [ 501.321741] panfrost 13040000.gpu: features: 00000000,13de77ff, issues: 00000000,00000400 [ 501.321747] panfrost 13040000.gpu: Features: L2:0x07120206 Shader:0x00000000 Tiler:0x00000809 Mem:0x1 MMU:0x00002830 AS:0xff JS:0x7 [ 501.321752] panfrost 13040000.gpu: shader_present=0x7 l2_present=0x1 [ 501.324951] [drm] Initialized panfrost 1.1.0 20180908 for 13040000.gpu on minor 2 Some more changes are still required to get devfreq working, and of course I do not have a userspace driver to test this with. Thanks! Nicolas v3 (see individual patches, too): - Match a specific mediatek,mt8183-mali instead of the generic bifrost, as this instance requires 2 special cases: - 2 regulators - 3 power domains v2: - Use sram instead of mali_sram as SRAM supply name. - Rename mali@ to gpu@. - Add dt-bindings changes - Stacking patches after the device tree change that allow basic probing (still incomplete and broken). Nicolas Boichat (7): dt-bindings: gpu: mali-bifrost: Add Mediatek MT8183 arm64: dts: mt8183: Add node for the Mali GPU drm/panfrost: Improve error reporting in panfrost_gpu_power_on drm/panfrost: Add support for multiple regulators drm/panfrost: Add support for multiple power domains RFC: drm/panfrost: Add mt8183-mali compatible string RFC: drm/panfrost: devfreq: Add support for 2 regulators .../bindings/gpu/arm,mali-bifrost.yaml | 18 +++ arch/arm64/boot/dts/mediatek/mt8183-evb.dts | 7 + arch/arm64/boot/dts/mediatek/mt8183.dtsi | 104 +++++++++++++++ drivers/gpu/drm/panfrost/panfrost_devfreq.c | 17 +++ drivers/gpu/drm/panfrost/panfrost_device.c | 120 +++++++++++++++--- drivers/gpu/drm/panfrost/panfrost_device.h | 25 +++- drivers/gpu/drm/panfrost/panfrost_drv.c | 38 ++++-- drivers/gpu/drm/panfrost/panfrost_gpu.c | 11 +- 8 files changed, 310 insertions(+), 30 deletions(-) -- 2.25.0.rc1.283.g88dfdc4193-goog [View Less]

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[PATCH v2 0/7] Add dts for mt8183 GPU (and misc panfrost patches)
by Nicolas Boichat 07 Feb '20

07 Feb '20

Hi! Sorry for the long delay since https://patchwork.kernel.org/patch/11132381/, finally got around to give this a real try. The main purpose of this series is to upstream the dts change and the binding document, but I wanted to see how far I could probe the GPU, to check that the binding is indeed correct. The rest of the patches are RFC/work-in-progress, but I think some of them could already be picked up. So this is tested on MT8183 with a chromeos-4.19 kernel, and a ton of backports to … [View More]get the latest panfrost driver (I should probably try on linux-next at some point but this was the path of least resistance). I tested it as a module as it's more challenging (originally probing would work built-in, on boot, but not as a module, as I didn't have the power domain changes, and all power domains are on by default during boot). Probing logs looks like this, currently: [ 221.867726] panfrost 13040000.gpu: clock rate = 511999970 [ 221.867929] panfrost 13040000.gpu: Linked as a consumer to regulator.14 [ 221.868600] panfrost 13040000.gpu: Linked as a consumer to regulator.31 [ 221.870586] panfrost 13040000.gpu: Linked as a consumer to genpd:0:13040000.gpu [ 221.871492] panfrost 13040000.gpu: Linked as a consumer to genpd:1:13040000.gpu [ 221.871866] panfrost 13040000.gpu: Linked as a consumer to genpd:2:13040000.gpu [ 221.872427] panfrost 13040000.gpu: mali-g72 id 0x6221 major 0x0 minor 0x3 status 0x0 [ 221.872439] panfrost 13040000.gpu: features: 00000000,13de77ff, issues: 00000000,00000400 [ 221.872445] panfrost 13040000.gpu: Features: L2:0x07120206 Shader:0x00000000 Tiler:0x00000809 Mem:0x1 MMU:0x00002830 AS:0xff JS:0x7 [ 221.872449] panfrost 13040000.gpu: shader_present=0x7 l2_present=0x1 [ 221.873526] panfrost 13040000.gpu: error powering up gpu stack [ 221.878088] [drm] Initialized panfrost 1.1.0 20180908 for 13040000.gpu on minor 2 [ 221.940817] panfrost 13040000.gpu: error powering up gpu stack [ 222.018233] panfrost 13040000.gpu: error powering up gpu stack (repeated) So the GPU is probed, but there's an issue when powering up the STACK, not quite sure why, I'll try to have a deeper look, at some point. Thanks! Nicolas v2: - Use sram instead of mali_sram as SRAM supply name. - Rename mali@ to gpu@. - Add dt-bindings changes - Stacking patches after the device tree change that allow basic probing (still incomplete and broken). Nicolas Boichat (7): dt-bindings: gpu: mali-bifrost: Add Mediatek MT8183 arm64: dts: mt8183: Add node for the Mali GPU drm/panfrost: Improve error reporting in panfrost_gpu_power_on drm/panfrost: Add support for a second regulator for the GPU drm/panfrost: Add support for multiple power domain support RFC: drm/panfrost: Add bifrost compatible string RFC: drm/panfrost: devfreq: Add support for 2 regulators .../bindings/gpu/arm,mali-bifrost.yaml | 20 ++++ arch/arm64/boot/dts/mediatek/mt8183-evb.dts | 7 ++ arch/arm64/boot/dts/mediatek/mt8183.dtsi | 104 +++++++++++++++++ drivers/gpu/drm/panfrost/panfrost_devfreq.c | 18 +++ drivers/gpu/drm/panfrost/panfrost_device.c | 108 ++++++++++++++++-- drivers/gpu/drm/panfrost/panfrost_device.h | 7 ++ drivers/gpu/drm/panfrost/panfrost_drv.c | 1 + drivers/gpu/drm/panfrost/panfrost_gpu.c | 15 ++- 8 files changed, 267 insertions(+), 13 deletions(-) -- 2.24.1.735.g03f4e72817-goog [View Less]

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dri-devel February 2020