dri-devel May 2022

dri-devel@lists.freedesktop.org

344 participants
736 discussions

[PATCH v2 0/4] Add PSR support for eDP
by Vinod Polimera 21 Jun '22

21 Jun '22

*** BLURB HERE *** Vinod Polimera (4): drm/msm/dp: Add basic PSR support for eDP drm/bridge: use atomic enable/disable for bridge callbacks drm/msm/disp/dpu1: use atomic enable/disable callbacks for encoder functions drm/msm/disp/dpu1: add PSR support for eDP interface in dpu driver drivers/gpu/drm/bridge/panel.c | 102 ++++++++++++++-- drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 31 ++++- drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 40 ++++++- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 2 +- drivers/gpu/drm/msm/dp/dp_catalog.c | 81 +++++++++++++ drivers/gpu/drm/msm/dp/dp_catalog.h | 4 + drivers/gpu/drm/msm/dp/dp_ctrl.c | 63 ++++++++++ drivers/gpu/drm/msm/dp/dp_ctrl.h | 3 + drivers/gpu/drm/msm/dp/dp_display.c | 14 +++ drivers/gpu/drm/msm/dp/dp_display.h | 1 + drivers/gpu/drm/msm/dp/dp_drm.c | 177 +++++++++++++++++++++++++++- drivers/gpu/drm/msm/dp/dp_link.c | 22 ++++ drivers/gpu/drm/msm/dp/dp_panel.c | 21 ++++ drivers/gpu/drm/msm/dp/dp_panel.h | 6 + drivers/gpu/drm/msm/dp/dp_reg.h | 19 +++ drivers/gpu/drm/msm/msm_drv.h | 6 + 16 files changed, 568 insertions(+), 24 deletions(-) -- 2.7.4

7 18

[PATCH 00/14] drm/kms: Stop registering multiple /sys/class/backlight devs for a single display
by Hans de Goede 21 Jun '22

21 Jun '22

Hi All, As mentioned in my RFC titled "drm/kms: control display brightness through drm_connector properties": https://lore.kernel.org/dri-devel/0d188965-d809-81b5-74ce-7d30c49fee2d@redh… The first step towards this is to deal with some existing technical debt in backlight handling on x86/ACPI boards, specifically we need to stop registering multiple /sys/class/backlight devs for a single display. This series implements my RFC describing my plan for these cleanups: https://lore.kernel.org/dri-devel/98519ba0-7f18-201a-ea34-652f50343158@redh… Specifically patches 1-6 implement the "Fixing kms driver unconditionally register their "native" backlight dev" part. And patches 7-14 implement the "Fixing acpi_video0 getting registered for a brief time" time. Note this series does not deal yet with the "Other issues" part, I plan to do a follow up series for that. The changes in this series are good to have regardless of the further "drm/kms: control display brightness through drm_connector properties" plans. So I plan to push these upstream once they are ready (once reviewed). Since this crosses various subsystems / touches multiple kms drivers my plan is to provide an immutable branch based on say 5.19-rc1 and then have that get merged into all the relevant trees. Please review. Regards, Hans Hans de Goede (14): ACPI: video: Add a native function parameter to acpi_video_get_backlight_type() drm/i915: Don't register backlight when another backlight should be used drm/amdgpu: Don't register backlight when another backlight should be used drm/radeon: Don't register backlight when another backlight should be used drm/nouveau: Don't register backlight when another backlight should be used ACPI: video: Drop backlight_device_get_by_type() call from acpi_video_get_backlight_type() ACPI: video: Remove acpi_video_bus from list before tearing it down ACPI: video: Simplify acpi_video_unregister_backlight() ACPI: video: Make backlight class device registration a separate step ACPI: video: Remove code to unregister acpi_video backlight when a native backlight registers drm/i915: Call acpi_video_register_backlight() drm/nouveau: Register ACPI video backlight when nv_backlight registration fails drm/amdgpu: Register ACPI video backlight when skipping amdgpu backlight registration drm/radeon: Register ACPI video backlight when skipping radeon backlight registration drivers/acpi/acpi_video.c | 69 ++++++++++++++----- drivers/acpi/video_detect.c | 53 +++----------- drivers/gpu/drm/Kconfig | 2 + .../gpu/drm/amd/amdgpu/atombios_encoders.c | 14 +++- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 9 +++ .../gpu/drm/i915/display/intel_backlight.c | 7 ++ drivers/gpu/drm/i915/display/intel_display.c | 1 + drivers/gpu/drm/i915/display/intel_opregion.c | 2 +- drivers/gpu/drm/nouveau/nouveau_backlight.c | 14 ++++ drivers/gpu/drm/radeon/atombios_encoders.c | 7 ++ drivers/gpu/drm/radeon/radeon_encoders.c | 11 ++- .../gpu/drm/radeon/radeon_legacy_encoders.c | 7 ++ drivers/platform/x86/acer-wmi.c | 2 +- drivers/platform/x86/asus-laptop.c | 2 +- drivers/platform/x86/asus-wmi.c | 4 +- drivers/platform/x86/compal-laptop.c | 2 +- drivers/platform/x86/dell/dell-laptop.c | 2 +- drivers/platform/x86/eeepc-laptop.c | 2 +- drivers/platform/x86/fujitsu-laptop.c | 4 +- drivers/platform/x86/ideapad-laptop.c | 2 +- drivers/platform/x86/intel/oaktrail.c | 2 +- drivers/platform/x86/msi-laptop.c | 2 +- drivers/platform/x86/msi-wmi.c | 2 +- drivers/platform/x86/samsung-laptop.c | 2 +- drivers/platform/x86/sony-laptop.c | 2 +- drivers/platform/x86/thinkpad_acpi.c | 4 +- drivers/platform/x86/toshiba_acpi.c | 2 +- include/acpi/video.h | 8 ++- 28 files changed, 156 insertions(+), 84 deletions(-) -- 2.36.0

5 29

[PATCH 00/10] small BAR uapi bits
by Matthew Auld 21 Jun '22

21 Jun '22

Test-with: 20220525183702.490989-1-matthew.auld(a)intel.com -- 2.34.3

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[PATCH v13 0/3] eDP/DP Phy vdda realted function
by Kuogee Hsieh 21 Jun '22

21 Jun '22

1) add regulator_set_load() to eDP phy 2) add regulator_set_load() to DP phy 3) remove vdda related function out of eDP/DP controller Kuogee Hsieh (3): phy: qcom-edp: add regulator_set_load to edp phy phy: qcom-qmp: add regulator_set_load to dp phy drm/msm/dp: delete vdda regulator related functions from eDP/DP controller drivers/gpu/drm/msm/dp/dp_parser.c | 14 ------ drivers/gpu/drm/msm/dp/dp_parser.h | 8 ---- drivers/gpu/drm/msm/dp/dp_power.c | 95 +------------------------------------ drivers/phy/qualcomm/phy-qcom-edp.c | 12 +++++ drivers/phy/qualcomm/phy-qcom-qmp.c | 40 ++++++++++++---- 5 files changed, 45 insertions(+), 124 deletions(-) -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project

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[PATCH 0/1] devcoredump support for Panfrost GPU driver
by Adrián Larumbe 21 Jun '22

21 Jun '22

This patch adds support for devcoredump in the Panfrost driver. Code structure is heavily inspired by similar functionality in the Etnaviv driver, but the main goal of the crash dump is feeding it to a userspace analyser that accesses the BO raw binary data to pass it to the pandecode library. Mesa MR under review can be found at: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14034 Adrián Larumbe (1): drm/panfrost: Add support for devcoredump drivers/gpu/drm/panfrost/Kconfig | 1 + drivers/gpu/drm/panfrost/Makefile | 3 +- drivers/gpu/drm/panfrost/panfrost_dump.c | 198 +++++++++++++++++++++++ drivers/gpu/drm/panfrost/panfrost_dump.h | 12 ++ drivers/gpu/drm/panfrost/panfrost_job.c | 3 + include/uapi/drm/panfrost_drm.h | 32 ++++ 6 files changed, 248 insertions(+), 1 deletion(-) create mode 100644 drivers/gpu/drm/panfrost/panfrost_dump.c create mode 100644 drivers/gpu/drm/panfrost/panfrost_dump.h -- 2.35.1

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[PATCH v2 4/4] drm/bridge: anx7625: Use DPI bus type
by Xin Ji 20 Jun '22

20 Jun '22

As V4L2_FWNODE_BUS_TYPE_PARALLEL not properly descript for DPI interface, this patch use new defined V4L2_FWNODE_BUS_TYPE_DPI for it. Fixes: fd0310b6fe7d ("drm/bridge: anx7625: add MIPI DPI input feature") Signed-off-by: Xin Ji <xji(a)analogixsemi.com> --- drivers/gpu/drm/bridge/analogix/anx7625.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c index 376da01243a3..71df977e8f53 100644 --- a/drivers/gpu/drm/bridge/analogix/anx7625.c +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c @@ -1623,14 +1623,14 @@ static int anx7625_parse_dt(struct device *dev, anx7625_get_swing_setting(dev, pdata); - pdata->is_dpi = 1; /* default dpi mode */ + pdata->is_dpi = 0; /* default dsi mode */ pdata->mipi_host_node = of_graph_get_remote_node(np, 0, 0); if (!pdata->mipi_host_node) { DRM_DEV_ERROR(dev, "fail to get internal panel.\n"); return -ENODEV; } - bus_type = V4L2_FWNODE_BUS_TYPE_PARALLEL; + bus_type = 0; mipi_lanes = MAX_LANES_SUPPORT; ep0 = of_graph_get_endpoint_by_regs(np, 0, 0); if (ep0) { @@ -1640,8 +1640,8 @@ static int anx7625_parse_dt(struct device *dev, mipi_lanes = of_property_count_u32_elems(ep0, "data-lanes"); } - if (bus_type == V4L2_FWNODE_BUS_TYPE_PARALLEL) /* bus type is Parallel(DSI) */ - pdata->is_dpi = 0; + if (bus_type == V4L2_FWNODE_BUS_TYPE_DPI) /* bus type is DPI */ + pdata->is_dpi = 1; pdata->mipi_lanes = mipi_lanes; if (pdata->mipi_lanes > MAX_LANES_SUPPORT || pdata->mipi_lanes <= 0) -- 2.25.1

4 14

[PATCH] drm/i915: Fix vm use-after-free in vma destruction
by Thomas Hellström 20 Jun '22

20 Jun '22

In vma destruction, the following race may occur: Thread 1: Thread 2: i915_vma_destroy(); ... list_del_init(vma->vm_link); ... mutex_unlock(vma->vm->mutex); __i915_vm_release(); release_references(); And in release_reference() we dereference vma->vm to get to the vm gt pointer, leadin go a use-after free. However, __i915_vm_release() grabs the vm->mutex so the vm won't be destroyed before vma->vm->mutex is released, so extract the gt pointer under the vm->mutex to avoid the vma->vm dereference in release_references(). Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/5944 Fixes: e1a7ab4fca ("drm/i915: Remove the vm open count") Cc: Niranjana Vishwanathapura <niranjana.vishwanathapura(a)intel.com> Cc: Matthew Auld <matthew.auld(a)intel.com> Signed-off-by: Thomas Hellström <thomas.hellstrom(a)linux.intel.com> --- drivers/gpu/drm/i915/i915_vma.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c index 4f6db539571a..5d6850a91a69 100644 --- a/drivers/gpu/drm/i915/i915_vma.c +++ b/drivers/gpu/drm/i915/i915_vma.c @@ -1636,10 +1636,10 @@ static void force_unbind(struct i915_vma *vma) GEM_BUG_ON(drm_mm_node_allocated(&vma->node)); } -static void release_references(struct i915_vma *vma, bool vm_ddestroy) +static void release_references(struct i915_vma *vma, struct intel_gt *gt, + bool vm_ddestroy) { struct drm_i915_gem_object *obj = vma->obj; - struct intel_gt *gt = vma->vm->gt; GEM_BUG_ON(i915_vma_is_active(vma)); @@ -1694,11 +1694,12 @@ void i915_vma_destroy_locked(struct i915_vma *vma) force_unbind(vma); list_del_init(&vma->vm_link); - release_references(vma, false); + release_references(vma, vma->vm->gt, false); } void i915_vma_destroy(struct i915_vma *vma) { + struct intel_gt *gt; bool vm_ddestroy; mutex_lock(&vma->vm->mutex); @@ -1706,8 +1707,11 @@ void i915_vma_destroy(struct i915_vma *vma) list_del_init(&vma->vm_link); vm_ddestroy = vma->vm_ddestroy; vma->vm_ddestroy = false; + + /* vma->vm may be freed when releasing vma->vm->mutex. */ + gt = vma->vm->gt; mutex_unlock(&vma->vm->mutex); - release_references(vma, vm_ddestroy); + release_references(vma, gt, vm_ddestroy); } void i915_vma_parked(struct intel_gt *gt) -- 2.34.1

2 2

[PATCH] drm/radeon: Add build directory to include path
by Michel Dänzer 20 Jun '22

20 Jun '22

From: Michel Dänzer <mdaenzer(a)redhat.com> Fixes compile errors with out-of-tree builds, e.g. ../drivers/gpu/drm/radeon/r420.c:38:10: fatal error: r420_reg_safe.h: No such file or directory 38 | #include "r420_reg_safe.h" | ^~~~~~~~~~~~~~~~~ Signed-off-by: Michel Dänzer <mdaenzer(a)redhat.com> --- drivers/gpu/drm/radeon/Makefile | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/radeon/Makefile b/drivers/gpu/drm/radeon/Makefile index 11c97edde54d..37caf5236048 100644 --- a/drivers/gpu/drm/radeon/Makefile +++ b/drivers/gpu/drm/radeon/Makefile @@ -3,6 +3,8 @@ # Makefile for the drm device driver. This driver provides support for the # Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher. +ccflags-y += -I$(src) + hostprogs := mkregtable targets := rn50_reg_safe.h r100_reg_safe.h r200_reg_safe.h rv515_reg_safe.h r300_reg_safe.h r420_reg_safe.h rs600_reg_safe.h r600_reg_safe.h evergreen_reg_safe.h cayman_reg_safe.h -- 2.35.1

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[PATCH v2 0/1] Drop wbinvd_on_all_cpus usage
by Michael Cheng 20 Jun '22

20 Jun '22

To align with the discussion in [1][2], this patch series drops all usage of wbvind_on_all_cpus within i915 by either replacing the call with certain drm clflush helpers, or reverting to a previous logic. [1]. https://lists.freedesktop.org/archives/dri-devel/2021-November/330928.html [2]. https://patchwork.freedesktop.org/patch/475752/?series=99991&rev=5 v2 (Michael Cheng) : Per feedback from Thomas and Tvrtko, this series should be split into two parts; First part is to unblock i915 from build errors and second part will focus on implementing range flushes on the propose reverts. Michael Cheng (1): i915/gem: drop wbinvd_on_all_cpus usage drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) -- 2.25.1

3 3

[PATCH v4 00/15] Add generic memory shrinker to VirtIO-GPU and Panfrost DRM drivers
by Dmitry Osipenko 19 Jun '22

19 Jun '22

Hello, This patchset introduces memory shrinker for the VirtIO-GPU DRM driver. During OOM, the shrinker will release BOs that are marked as "not needed" by userspace using the new madvise IOCTL, it will also evict idling BOs to SWAP. The userspace in this case is the Mesa VirGL driver, it will mark the cached BOs as "not needed", allowing kernel driver to release memory of the cached shmem BOs on lowmem situations, preventing OOM kills. This patchset adds memory purging and eviction support to VirtIO-GPU driver. The Panfrost driver is switched to use generic memory shrinker. Eviction support will come later on, after resolving the blocker bug in Panfrost. This patchset also includes couple improvements and fixes for various minor things that I found while was working on the shrinker. The Mesa and IGT patches will be kept on hold until this kernel series will be approved and merged. This patchset was tested using Qemu and crosvm, including both cases of IOMMU off/on. Mesa: https://gitlab.freedesktop.org/digetx/mesa/-/commits/virgl-madvise IGT: https://gitlab.freedesktop.org/digetx/igt-gpu-tools/-/commits/virtio-madvise https://gitlab.freedesktop.org/digetx/igt-gpu-tools/-/commits/panfrost-madv… Changelog: v4: - Corrected minor W=1 warnings reported by kernel test robot for v3. - Renamed DRM_GEM_SHMEM_PAGES_STATE_ACTIVE/INACTIVE to PINNED/UNPINNED, for more clarity. v3: - Hardened shrinker's count() with usage of READ_ONCE() since we don't use atomic type for counting and technically compiler is free to re-fetch counter's variable. - "Correct drm_gem_shmem_get_sg_table() error handling" now uses PTR_ERR_OR_ZERO(), fixing typo that was made in v2. - Removed obsoleted shrinker from the Panfrost driver, which I missed to do in v2 by accident and Alyssa Rosenzweig managed to notice it. - CCed stable kernels in all patches that make fixes, even the minor ones, like was suggested by Emil Velikov and added his r-b to the patches. - Added t-b from Steven Price to the Panfrost's shrinker patch. - Corrected doc-comment of drm_gem_shmem_object.madv, like was suggested by Steven Price. Comment now says that madv=1 means "object is purged" instead of saying that value is unused. - Added more doc-comments to the new shmem shrinker API. - The "Improve DMA API usage for shmem BOs" patch got more improvements by removing the obsoleted drm_dev_set_unique() quirk and its comment. - Added patch that makes Virtio-GPU driver to use common dev_is_pci() helper, which was suggested by Robin Murphy. - Added new "drm/shmem-helper: Take GEM reservation lock instead of drm_gem_shmem locks" patch, which was suggested by Daniel Vetter. - Added new "drm/virtio: Simplify error handling of virtio_gpu_object_create()" patch. - Improved "Correct doc-comment of drm_gem_shmem_get_sg_table()" patch, like was suggested by Daniel Vetter, by saying that function returns ERR_PTR() and not errno. - virtio_gpu_purge_object() is fenced properly now, turned out virtio_gpu_notify() doesn't do fencing as I was supposing before. Stress testing of memory eviction revealed that. - Added new patch that corrects virtio_gpu_plane_cleanup_fb() to use appropriate atomic plane state. - SHMEM shrinker got eviction support. - VirtIO-GPU driver now supports memory eviction. It's enabled for a non-blob GEMs only, i.e. for VirGL. The blobs don't support dynamic attaching/detaching of guest's memory, so it's not trivial to enable them. - Added patch that removes obsoleted drm_gem_shmem_purge() - Added patch that makes drm_gem_shmem_get_pages() private. - Added patch that fixes lockup on dma_resv_reserve_fences() error. v2: - Improved shrinker by using a more fine-grained locking to reduce contention during scan of objects and dropped locking from the 'counting' callback by tracking count of shrinkable pages. This was suggested by Rob Clark in the comment to v1. - Factored out common shrinker code into drm_gem_shmem_helper.c and switched Panfrost driver to use the new common memory shrinker. This was proposed by Thomas Zimmermann in his prototype series that he shared with us in the comment to v1. Note that I only compile-tested the Panfrost driver. - Shrinker now takes object_name_lock during scan to prevent racing with dma-buf exporting. - Shrinker now takes vmap_lock during scan to prevent racing with shmem vmap/unmap code. - Added "Correct doc-comment of drm_gem_shmem_get_sg_table()" patch, which I sent out previously as a standalone change, since the drm_gem_shmem_helper.c is now touched by this patchset anyways and it doesn't hurt to group all the patches together. Dmitry Osipenko (15): drm/virtio: Correct drm_gem_shmem_get_sg_table() error handling drm/virtio: Check whether transferred 2D BO is shmem drm/virtio: Unlock GEM reservations on virtio_gpu_object_shmem_init() error drm/virtio: Unlock reservations on dma_resv_reserve_fences() error drm/virtio: Use appropriate atomic state in virtio_gpu_plane_cleanup_fb() drm/virtio: Simplify error handling of virtio_gpu_object_create() drm/virtio: Improve DMA API usage for shmem BOs drm/virtio: Use dev_is_pci() drm/shmem-helper: Correct doc-comment of drm_gem_shmem_get_sg_table() drm/shmem-helper: Take reservation lock instead of drm_gem_shmem locks drm/shmem-helper: Add generic memory shrinker drm/virtio: Support memory shrinking drm/panfrost: Switch to generic memory shrinker drm/shmem-helper: Make drm_gem_shmem_get_pages() private drm/shmem-helper: Remove drm_gem_shmem_purge() drivers/gpu/drm/drm_gem_shmem_helper.c | 814 ++++++++++++++++-- drivers/gpu/drm/lima/lima_gem.c | 8 +- drivers/gpu/drm/panfrost/Makefile | 1 - drivers/gpu/drm/panfrost/panfrost_device.h | 4 - drivers/gpu/drm/panfrost/panfrost_drv.c | 19 +- drivers/gpu/drm/panfrost/panfrost_gem.c | 30 +- drivers/gpu/drm/panfrost/panfrost_gem.h | 9 - .../gpu/drm/panfrost/panfrost_gem_shrinker.c | 122 --- drivers/gpu/drm/panfrost/panfrost_job.c | 18 +- drivers/gpu/drm/panfrost/panfrost_mmu.c | 15 +- drivers/gpu/drm/virtio/virtgpu_drv.c | 53 +- drivers/gpu/drm/virtio/virtgpu_drv.h | 20 +- drivers/gpu/drm/virtio/virtgpu_gem.c | 50 +- drivers/gpu/drm/virtio/virtgpu_ioctl.c | 37 + drivers/gpu/drm/virtio/virtgpu_kms.c | 16 +- drivers/gpu/drm/virtio/virtgpu_object.c | 204 +++-- drivers/gpu/drm/virtio/virtgpu_plane.c | 23 +- drivers/gpu/drm/virtio/virtgpu_vq.c | 55 +- include/drm/drm_device.h | 4 + include/drm/drm_gem.h | 35 + include/drm/drm_gem_shmem_helper.h | 114 ++- include/uapi/drm/virtgpu_drm.h | 14 + 22 files changed, 1277 insertions(+), 388 deletions(-) delete mode 100644 drivers/gpu/drm/panfrost/panfrost_gem_shrinker.c -- 2.35.1

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dri-devel May 2022