dri-devel July 2021

dri-devel@lists.freedesktop.org

321 participants
829 discussions

[PATCH v2 01/11] drm/i915: Check for nomodeset in i915_init() first
by Daniel Vetter 25 Aug '21

25 Aug '21

When modesetting (aka the full pci driver, which has nothing to do with disable_display option, which just gives you the full pci driver without the display driver) is disabled, we load nothing and do nothing. So move that check first, for a bit of orderliness. With Jason's module init/exit table this now becomes trivial. Reviewed-by: Jason Ekstrand <jason(a)jlekstrand.net> Cc: Jason Ekstrand <jason(a)jlekstrand.net> Signed-off-by: Daniel Vetter <daniel.vetter(a)intel.com> --- drivers/gpu/drm/i915/i915_pci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c index f28206484552..eb520fcb32e4 100644 --- a/drivers/gpu/drm/i915/i915_pci.c +++ b/drivers/gpu/drm/i915/i915_pci.c @@ -1293,9 +1293,9 @@ static const struct { int (*init)(void); void (*exit)(void); } init_funcs[] = { + { i915_check_nomodeset, NULL }, { i915_globals_init, i915_globals_exit }, { i915_mock_selftests, NULL }, - { i915_check_nomodeset, NULL }, { i915_pmu_init, i915_pmu_exit }, { i915_register_pci_driver, i915_unregister_pci_driver }, { i915_perf_sysctl_register, i915_perf_sysctl_unregister }, -- 2.32.0

5 15

[Bug 208909] New: amdgpu Ryzen 7 4700U NULL pointer dereference multi monitor with rotation
by bugzilla-daemon＠bugzilla.kernel.org 25 Aug '21

25 Aug '21

https://bugzilla.kernel.org/show_bug.cgi?id=208909 Bug ID: 208909 Summary: amdgpu Ryzen 7 4700U NULL pointer dereference multi monitor with rotation Product: Drivers Version: 2.5 Kernel Version: 5.8.0-050800-generic Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri(a)kernel-bugs.osdl.org Reporter: kernel(a)890.at Regression: No Created attachment 290909 --> https://bugzilla.kernel.org/attachment.cgi?id=290909&action=edit dmesg output Hi, I have a lenovo E15 gen2 laptop running, with a Ryzen 7 4700U renoir Vega 7, on a 5.8 ubuntu mainline kernel including the latest firmware files (git). System seems stable so far when running 2 monitors (internal display, and external display on DP). When adding a third monitor on the HDMI output and rotating this monitor, the system crashes with a null pointer dereference. any help would be appreciated cheers -- You are receiving this mail because: You are watching the assignee of the bug.

1 13

[PATCH 10/54] dt-bindings: display: panel-lvds: Document panel compatibles
by Maxime Ripard 23 Aug '21

23 Aug '21

The binding mentions that all the drivers using that driver must use a vendor-specific compatible but never enforces it, nor documents the vendor-specific compatibles. Let's make we document all of them, and that the binding will create an error if we add one that isn't. Cc: dri-devel(a)lists.freedesktop.org Cc: Laurent Pinchart <laurent.pinchart(a)ideasonboard.com> Cc: Sam Ravnborg <sam(a)ravnborg.org> Cc: Thierry Reding <thierry.reding(a)gmail.com> Signed-off-by: Maxime Ripard <maxime(a)cerno.tech> --- .../bindings/display/panel/lvds.yaml | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) diff --git a/Documentation/devicetree/bindings/display/panel/lvds.yaml b/Documentation/devicetree/bindings/display/panel/lvds.yaml index 49460c9dceea..d1513111eb48 100644 --- a/Documentation/devicetree/bindings/display/panel/lvds.yaml +++ b/Documentation/devicetree/bindings/display/panel/lvds.yaml @@ -31,12 +31,18 @@ allOf: properties: compatible: - contains: - const: panel-lvds - description: - Shall contain "panel-lvds" in addition to a mandatory panel-specific - compatible string defined in individual panel bindings. The "panel-lvds" - value shall never be used on its own. + items: + - enum: + - advantech,idk-1110wr + - advantech,idk-2121wr + - auo,b101ew05 + - innolux,ee101ia-01d + - mitsubishi,aa104xd12 + - mitsubishi,aa121td01 + - sgd,gktw70sdae4se + - sharp,lq150x1lg11 + - tbs,a711-panel + - const: panel-lvds data-mapping: enum: -- 2.31.1

3 6

[PATCH rdma-next v3 0/3] SG fix together with update to RDMA umem
by Leon Romanovsky 23 Aug '21

23 Aug '21

From: Leon Romanovsky <leonro(a)nvidia.com> Changelog: v3: * Rewrote to new API suggestion * Split for more patches v2: https://lore.kernel.org/lkml/cover.1626605893.git.leonro@nvidia.com * Changed implementation of first patch, based on our discussion with Christoph. https://lore.kernel.org/lkml/YNwaVTT0qmQdxaZz@infradead.org/ v1: https://lore.kernel.org/lkml/cover.1624955710.git.leonro@nvidia.com/ * Fixed sg_page with a _dma_ API in the umem.c v0: https://lore.kernel.org/lkml/cover.1624361199.git.leonro@nvidia.com Maor Gottlieb (3): lib/scatterlist: Provide a dedicated function to support table append lib/scatterlist: Fix wrong update of orig_nents RDMA: Use the sg_table directly and remove the opencoded version from umem drivers/gpu/drm/drm_prime.c | 13 +- drivers/gpu/drm/i915/gem/i915_gem_userptr.c | 11 +- drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c | 14 +- drivers/infiniband/core/umem.c | 56 +++--- drivers/infiniband/core/umem_dmabuf.c | 5 +- drivers/infiniband/hw/hns/hns_roce_db.c | 4 +- drivers/infiniband/hw/irdma/verbs.c | 2 +- drivers/infiniband/hw/mlx4/doorbell.c | 3 +- drivers/infiniband/hw/mlx4/mr.c | 4 +- drivers/infiniband/hw/mlx5/doorbell.c | 3 +- drivers/infiniband/hw/mlx5/mr.c | 3 +- drivers/infiniband/hw/qedr/verbs.c | 2 +- drivers/infiniband/sw/rdmavt/mr.c | 2 +- drivers/infiniband/sw/rxe/rxe_mr.c | 2 +- include/linux/scatterlist.h | 54 +++++- include/rdma/ib_umem.h | 11 +- include/rdma/ib_verbs.h | 28 +++ lib/scatterlist.c | 189 ++++++++++++-------- tools/testing/scatterlist/main.c | 38 ++-- 19 files changed, 275 insertions(+), 169 deletions(-) -- 2.31.1

3 10

[PATCH 1/5] drm/ttm: add a weak BO reference to the resource v2
by Christian König 23 Aug '21

23 Aug '21

Keep track for which BO a resource was allocated. This is necessary to move the LRU handling into the resources. A bit problematic is i915 since it tries to use the resource interface without a BO which is illegal from the conceptional point of view. v2: Document that this is a weak reference and add a workaround for i915 Signed-off-by: Christian König <christian.koenig(a)amd.com> --- drivers/gpu/drm/i915/intel_region_ttm.c | 5 +++++ drivers/gpu/drm/ttm/ttm_bo_util.c | 7 +++++-- drivers/gpu/drm/ttm/ttm_resource.c | 1 + include/drm/ttm/ttm_resource.h | 2 ++ 4 files changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_region_ttm.c b/drivers/gpu/drm/i915/intel_region_ttm.c index 27fe0668d094..980b10a7debf 100644 --- a/drivers/gpu/drm/i915/intel_region_ttm.c +++ b/drivers/gpu/drm/i915/intel_region_ttm.c @@ -88,6 +88,7 @@ intel_region_ttm_node_reserve(struct intel_memory_region *mem, place.fpfn = offset >> PAGE_SHIFT; place.lpfn = place.fpfn + (size >> PAGE_SHIFT); mock_bo.base.size = size; + mock_bo.bdev = &mem->i915->bdev; ret = man->func->alloc(man, &mock_bo, &place, &res); if (ret == -ENOSPC) ret = -ENXIO; @@ -104,7 +105,11 @@ void intel_region_ttm_node_free(struct intel_memory_region *mem, struct ttm_resource *res) { struct ttm_resource_manager *man = mem->region_private; + struct ttm_buffer_object mock_bo = {}; + mock_bo.base.size = res->num_pages * PAGE_SIZE; + mock_bo.bdev = &mem->i915->bdev; + res->bo = &mock_bo; man->func->free(man, res); } diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c index 2f57f824e6db..a1570aa8ff56 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_util.c +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c @@ -239,6 +239,11 @@ static int ttm_buffer_object_transfer(struct ttm_buffer_object *bo, if (bo->type != ttm_bo_type_sg) fbo->base.base.resv = &fbo->base.base._resv; + if (fbo->base.resource) { + fbo->base.resource->bo = &fbo->base; + bo->resource = NULL; + } + dma_resv_init(&fbo->base.base._resv); fbo->base.base.dev = NULL; ret = dma_resv_trylock(&fbo->base.base._resv); @@ -507,7 +512,6 @@ static int ttm_bo_move_to_ghost(struct ttm_buffer_object *bo, ghost_obj->ttm = NULL; else bo->ttm = NULL; - bo->resource = NULL; dma_resv_unlock(&ghost_obj->base._resv); ttm_bo_put(ghost_obj); @@ -635,7 +639,6 @@ int ttm_bo_pipeline_gutting(struct ttm_buffer_object *bo) dma_resv_unlock(&ghost->base._resv); ttm_bo_put(ghost); bo->ttm = ttm; - bo->resource = NULL; ttm_bo_assign_mem(bo, sys_res); return 0; diff --git a/drivers/gpu/drm/ttm/ttm_resource.c b/drivers/gpu/drm/ttm/ttm_resource.c index 2431717376e7..7ff6194154fe 100644 --- a/drivers/gpu/drm/ttm/ttm_resource.c +++ b/drivers/gpu/drm/ttm/ttm_resource.c @@ -41,6 +41,7 @@ void ttm_resource_init(struct ttm_buffer_object *bo, res->bus.offset = 0; res->bus.is_iomem = false; res->bus.caching = ttm_cached; + res->bo = bo; } EXPORT_SYMBOL(ttm_resource_init); diff --git a/include/drm/ttm/ttm_resource.h b/include/drm/ttm/ttm_resource.h index 140b6b9a8bbe..c73b35fb7d42 100644 --- a/include/drm/ttm/ttm_resource.h +++ b/include/drm/ttm/ttm_resource.h @@ -161,6 +161,7 @@ struct ttm_bus_placement { * @mem_type: Resource type of the allocation. * @placement: Placement flags. * @bus: Placement on io bus accessible to the CPU + * @bo: weak reference to the BO using this resource * * Structure indicating the placement and space resources used by a * buffer object. @@ -171,6 +172,7 @@ struct ttm_resource { uint32_t mem_type; uint32_t placement; struct ttm_bus_placement bus; + struct ttm_buffer_object *bo; }; /** -- 2.25.1

2 7

[PATCH 00/53] Begin enabling Xe_HP SDV and DG2 platforms
by Matt Roper 23 Aug '21

23 Aug '21

This series provides some of the initial enablement patches for two upcoming discrete GPUs: * XeHP SDV: Xe_HP (version 12.50) graphics IP, no display IP * DG2: Xe_HPG (version 12.55) graphics IP, Xe_LPD (version 13) display IP Both platforms will need additional enablement patches beyond what's present in this series before they're truly usable, including various LMEM and GuC work that's already happening separately. The new features/functionality that these platforms bring (such as multi-tile support, dedicated compute engines, etc.) may be referenced in passing in some of these patches but will be fully enabled in future series. Cc: Rodrigo Vivi <rodrigo.vivi(a)intel.com> Cc: Lucas De Marchi <lucas.demarchi(a)intel.com> Cc: James Ausmus <james.ausmus(a)intel.com> Akeem G Abodunrin (1): drm/i915/dg2: Add new LRI reg offsets Animesh Manna (1): drm/i915/dg2: Update to bigjoiner path Ankit Nautiyal (1): drm/i915/dg2: Configure PCON in DP pre-enable path Anusha Srivatsa (2): drm/i915/display/dsc: Add Per connector debugfs node for DSC BPP enable drm/i915/display/dsc: Set BPP in the kernel Daniele Ceraolo Spurio (1): drm/i915/xehp: handle new steering options Gwan-gyeong Mun (1): drm/i915/dg2: Update lane disable power state during PSR John Harrison (4): drm/i915/selftests: Allow for larger engine counts drm/i915/xehp: Extra media engines - Part 1 (engine definitions) drm/i915/xehp: Extra media engines - Part 2 (interrupts) drm/i915/xehp: Extra media engines - Part 3 (reset) José Roberto de Souza (1): drm/i915/dg2: Add DG2 to the PSR2 defeature list Lucas De Marchi (5): drm/i915: Add "release id" version drm/i915: Add XE_HP initial definitions drm/i915/xehpsdv: add initial XeHP SDV definitions drm/i915/xehpsdv: Define MOCS table for XeHP SDV drm/i915/xehpsdv: factor out function to read RP_STATE_CAP Matt Roper (29): drm/i915/xehp: Xe_HP forcewake support drm/i915/xehp: Define multicast register ranges drm/i915/xehp: Loop over all gslices for INSTDONE processing drm/i915/xehpsdv: Add maximum sseu limits drm/i915/xehpsdv: Define steering tables drm/i915/xehpsdv: Read correct RP_STATE_CAP register drm/i915/dg2: add DG2 platform info drm/i915/dg2: DG2 uses the same sseu limits as XeHP SDV drm/i915/dg2: Add forcewake table drm/i915/dg2: Update LNCF steering ranges drm/i915/dg2: Add SQIDI steering drm/i915/dg2: Maintain backward-compatible nested batch behavior drm/i915/dg2: Report INSTDONE_GEOM values in error state drm/i915/dg2: Define MOCS table for DG2 drm/i915/dg2: Add fake PCH drm/i915/dg2: Add cdclk table and reference clock drm/i915/dg2: Skip shared DPLL handling drm/i915/dg2: Don't wait for AUX power well enable ACKs drm/i915/dg2: Setup display outputs drm/i915/dg2: Add dbuf programming drm/i915/dg2: Don't program BW_BUDDY registers drm/i915/dg2: Don't read DRAM info drm/i915/dg2: DG2 has fixed memory bandwidth drm/i915/dg2: Add MPLLB programming for SNPS PHY drm/i915/dg2: Add MPLLB programming for HDMI drm/i915/dg2: Add vswing programming for SNPS phys drm/i915/dg2: Update modeset sequences drm/i915/dg2: Classify DG2 PHY types drm/i915/dg2: Wait for SNPS PHY calibration during display init Matthew Auld (1): drm/i915/xehp: Changes to ss/eu definitions Paulo Zanoni (1): drm/i915: Fork DG1 interrupt handler Prathap Kumar Valsan (1): drm/i915/xehp: New engine context offsets Stuart Summers (2): drm/i915/xehp: Handle new device context ID format drm/i915/xehpsdv: Add compute DSS type Tvrtko Ursulin (1): drm/i915/xehp: VDBOX/VEBOX fusing registers are enable-based Venkata Sandeep Dhanalakota (1): drm/i915/gen12: Use fuse info to enable SFC drivers/gpu/drm/i915/Makefile | 1 + drivers/gpu/drm/i915/display/intel_bw.c | 24 +- drivers/gpu/drm/i915/display/intel_cdclk.c | 24 +- drivers/gpu/drm/i915/display/intel_ddi.c | 165 +++- drivers/gpu/drm/i915/display/intel_display.c | 94 +- drivers/gpu/drm/i915/display/intel_display.h | 1 + .../drm/i915/display/intel_display_debugfs.c | 103 ++- .../drm/i915/display/intel_display_power.c | 25 + .../drm/i915/display/intel_display_power.h | 10 + .../drm/i915/display/intel_display_types.h | 18 +- drivers/gpu/drm/i915/display/intel_dp.c | 23 +- drivers/gpu/drm/i915/display/intel_dpll.c | 12 +- drivers/gpu/drm/i915/display/intel_dpll_mgr.c | 5 +- drivers/gpu/drm/i915/display/intel_hdmi.c | 11 + drivers/gpu/drm/i915/display/intel_psr.c | 10 +- drivers/gpu/drm/i915/display/intel_snps_phy.c | 862 ++++++++++++++++++ drivers/gpu/drm/i915/display/intel_snps_phy.h | 35 + drivers/gpu/drm/i915/gt/debugfs_gt_pm.c | 8 +- drivers/gpu/drm/i915/gt/gen8_engine_cs.c | 7 +- drivers/gpu/drm/i915/gt/intel_engine_cs.c | 144 ++- drivers/gpu/drm/i915/gt/intel_engine_types.h | 29 +- .../drm/i915/gt/intel_execlists_submission.c | 78 +- drivers/gpu/drm/i915/gt/intel_gt.c | 66 +- drivers/gpu/drm/i915/gt/intel_gt.h | 1 + drivers/gpu/drm/i915/gt/intel_gt_irq.c | 13 +- drivers/gpu/drm/i915/gt/intel_gt_types.h | 7 + drivers/gpu/drm/i915/gt/intel_lrc.c | 156 +++- drivers/gpu/drm/i915/gt/intel_lrc_reg.h | 2 + drivers/gpu/drm/i915/gt/intel_mocs.c | 66 +- drivers/gpu/drm/i915/gt/intel_region_lmem.c | 1 + drivers/gpu/drm/i915/gt/intel_reset.c | 6 + drivers/gpu/drm/i915/gt/intel_rps.c | 19 +- drivers/gpu/drm/i915/gt/intel_rps.h | 1 + drivers/gpu/drm/i915/gt/intel_sseu.c | 116 ++- drivers/gpu/drm/i915/gt/intel_sseu.h | 20 +- drivers/gpu/drm/i915/gt/intel_sseu_debugfs.c | 2 +- drivers/gpu/drm/i915/gt/intel_workarounds.c | 175 +++- drivers/gpu/drm/i915/gt/selftest_execlists.c | 10 +- .../gpu/drm/i915/gt/selftest_workarounds.c | 32 +- drivers/gpu/drm/i915/i915_debugfs.c | 8 +- drivers/gpu/drm/i915/i915_drv.h | 48 +- drivers/gpu/drm/i915/i915_getparam.c | 6 +- drivers/gpu/drm/i915/i915_gpu_error.c | 36 +- drivers/gpu/drm/i915/i915_irq.c | 141 ++- drivers/gpu/drm/i915/i915_pci.c | 63 +- drivers/gpu/drm/i915/i915_perf.c | 29 +- drivers/gpu/drm/i915/i915_reg.h | 109 ++- drivers/gpu/drm/i915/intel_device_info.c | 4 + drivers/gpu/drm/i915/intel_device_info.h | 10 +- drivers/gpu/drm/i915/intel_dram.c | 6 +- drivers/gpu/drm/i915/intel_pch.c | 3 + drivers/gpu/drm/i915/intel_pch.h | 2 + drivers/gpu/drm/i915/intel_pm.c | 120 ++- drivers/gpu/drm/i915/intel_step.c | 20 +- drivers/gpu/drm/i915/intel_step.h | 1 + drivers/gpu/drm/i915/intel_uncore.c | 367 ++++++-- drivers/gpu/drm/i915/intel_uncore.h | 14 +- drivers/gpu/drm/i915/selftests/intel_uncore.c | 2 + include/uapi/drm/i915_drm.h | 3 - 59 files changed, 3085 insertions(+), 289 deletions(-) create mode 100644 drivers/gpu/drm/i915/display/intel_snps_phy.c create mode 100644 drivers/gpu/drm/i915/display/intel_snps_phy.h -- 2.25.4

10 81

[Bug 204849] New: amdgpu (RX560X) traceboot in dmesg boot output, system instability
by bugzilla-daemon＠bugzilla.kernel.org 22 Aug '21

22 Aug '21

https://bugzilla.kernel.org/show_bug.cgi?id=204849 Bug ID: 204849 Summary: amdgpu (RX560X) traceboot in dmesg boot output, system instability Product: Drivers Version: 2.5 Kernel Version: 5.3-rc8 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri(a)kernel-bugs.osdl.org Reporter: justin(a)postgresql.org Regression: No Trying to sort out a system stability problem with my new laptop (Acer Nitro 5, model AN515-42-R3EE) with Ryzen 2700U and RX560X. dmesg output shows traceback for amdgpu with kernel 5.3-rc8, all prior kernels I've tested (various 4.x, and 5.3-rc7) also have various tracebacks shown in amdgpu. Here's the 5.3-rc8 kernel one, note there are several that show up at the same time in the dmesg output, all amdgpu related: *********************************************************************** [ 5.662316] ------------[ cut here ]------------ [ 5.662430] WARNING: CPU: 2 PID: 403 at drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_link.c:1882 write_i2c_default_retimer_setting.cold+0x45 /0xab [amdgpu] [ 5.662431] Modules linked in: hid_generic usbhid amdgpu(+) crct10dif_pclmul crc32_pclmul crc32c_intel rtsx_pci_sdmmc ghash_clmulni_intel mmc_co re amd_iommu_v2 gpu_sched i2c_algo_bit aesni_intel drm_kms_helper aes_x86_64 xhci_pci crypto_simd syscopyarea sysfillrect xhci_hcd sysimgblt fb_sys _fops ttm cryptd glue_helper drm usbcore serio_raw rtsx_pci video wmi pinctrl_amd i2c_hid button dm_mirror dm_region_hash dm_log sg dm_multipath dm _mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua efivarfs [ 5.662449] CPU: 2 PID: 403 Comm: systemd-udevd Not tainted 5.3.0-rc8-2.gd6f0b71-default #1 openSUSE Tumbleweed (unreleased) [ 5.662450] Hardware name: Acer Nitro AN515-42/Freed_RRS, BIOS V1.13 02/11/2019 [ 5.662530] RIP: 0010:write_i2c_default_retimer_setting.cold+0x45/0xab [amdgpu] [ 5.662532] Code: 76 2c b5 d8 0f 0b e9 ab 14 fd ff 48 c7 c7 c0 7d c7 c0 e8 63 2c b5 d8 0f 0b e9 ea 13 fd ff 48 c7 c7 c0 7d c7 c0 e8 50 2c b5 d8 <0f> 0b e9 83 13 fd ff 48 c7 c7 c0 7d c7 c0 e8 3d 2c b5 d8 0f 0b e9 [ 5.662533] RSP: 0018:ffffaccd804b7248 EFLAGS: 00010246 [ 5.662534] RAX: 0000000000000024 RBX: 0000000000000000 RCX: 0000000000000000 [ 5.662534] RDX: 0000000000000000 RSI: ffff9eb08ec99a18 RDI: ffff9eb08ec99a18 [ 5.662535] RBP: ffff9eb077d401b8 R08: ffff9eb08ec99a18 R09: ffff9eb08f219c40 [ 5.662535] R10: 0000000000000406 R11: 00000000000ea8ac R12: 0000000000000000 [ 5.662536] R13: 0000000000000000 R14: ffff9eb077c00000 R15: ffff9eb077ce3800 [ 5.662537] FS: 00007f7734d34d40(0000) GS:ffff9eb08ec80000(0000) knlGS:0000000000000000 [ 5.662537] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.662538] CR2: 00007f772e838a70 CR3: 000000023ebe2000 CR4: 00000000003406e0 [ 5.662538] Call Trace: [ 5.662619] core_link_enable_stream+0x861/0x870 [amdgpu] [ 5.662696] ? dce110_apply_ctx_to_hw+0x4b0/0x530 [amdgpu] [ 5.662769] dce110_apply_ctx_to_hw+0x4b0/0x530 [amdgpu] [ 5.662844] dc_commit_state_no_check+0x216/0x540 [amdgpu] [ 5.662917] dc_commit_state+0x8f/0xb0 [amdgpu] [ 5.662993] amdgpu_dm_atomic_commit_tail+0x3bf/0xfb0 [amdgpu] [ 5.663068] ? fill_dc_plane_info_and_addr+0x340/0x340 [amdgpu] [ 5.663140] ? dm_plane_helper_prepare_fb+0x20d/0x290 [amdgpu] [ 5.663148] ? commit_tail+0x3c/0x70 [drm_kms_helper] [ 5.663153] commit_tail+0x3c/0x70 [drm_kms_helper] [ 5.663159] drm_atomic_helper_commit+0x108/0x110 [drm_kms_helper] [ 5.663172] drm_client_modeset_commit_atomic+0x1d0/0x1f0 [drm] [ 5.663184] drm_client_modeset_commit_force+0x50/0x150 [drm] [ 5.663189] drm_fb_helper_restore_fbdev_mode_unlocked+0x49/0xa0 [drm_kms_helper] [ 5.663195] drm_fb_helper_set_par+0x2c/0x50 [drm_kms_helper] [ 5.663198] fbcon_init+0x2a9/0x5d0 [ 5.663201] visual_init+0xce/0x130 [ 5.663203] do_bind_con_driver+0x1b9/0x2a0 [ 5.663205] do_take_over_console+0x115/0x180 [ 5.663206] do_fbcon_takeover+0x58/0xb0 [ 5.663208] register_framebuffer+0x1e4/0x300 [ 5.663214] __drm_fb_helper_initial_config_and_unlock+0x2fa/0x440 [drm_kms_helper] [ 5.663269] amdgpu_fbdev_init+0xbc/0xf0 [amdgpu] [ 5.663347] amdgpu_device_init.cold+0x5b5/0x8ec [amdgpu] [ 5.663399] amdgpu_driver_load_kms+0x86/0x1f0 [amdgpu] [ 5.663409] drm_dev_register+0x111/0x150 [drm] [ 5.663460] amdgpu_pci_probe+0xbd/0x120 [amdgpu] [ 5.663464] ? __pm_runtime_resume+0x58/0x80 [ 5.663466] local_pci_probe+0x42/0x80 [ 5.663468] pci_device_probe+0x107/0x1b0 [ 5.663470] really_probe+0xf0/0x380 [ 5.663471] driver_probe_device+0x59/0xd0 [ 5.663473] device_driver_attach+0x53/0x60 [ 5.663474] __driver_attach+0x8a/0x150 [ 5.663475] ? device_driver_attach+0x60/0x60 [ 5.663476] bus_for_each_dev+0x78/0xc0 [ 5.663478] bus_add_driver+0x14a/0x1e0 [ 5.663479] driver_register+0x6c/0xb0 [ 5.663481] ? 0xffffffffc070e000 [ 5.663483] do_one_initcall+0x46/0x1f4 [ 5.663486] ? _cond_resched+0x15/0x30 [ 5.663488] ? kmem_cache_alloc_trace+0x1c1/0x210 [ 5.663490] ? do_init_module+0x23/0x230 [ 5.663491] do_init_module+0x5c/0x230 [ 5.663493] load_module+0x14a8/0x1610 [ 5.663495] ? vmap_page_range_noflush+0x23c/0x350 [ 5.663497] ? __do_sys_init_module+0x16e/0x1a0 [ 5.663498] ? _cond_resched+0x15/0x30 [ 5.663499] __do_sys_init_module+0x16e/0x1a0 [ 5.663501] do_syscall_64+0x6e/0x1e0 [ 5.663503] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 5.663504] RIP: 0033:0x7f7733b7823a [ 5.663506] Code: 48 8b 0d 61 ac 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 af 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 2e ac 2b 00 f7 d8 64 89 01 48 [ 5.663507] RSP: 002b:00007ffffa6bac38 EFLAGS: 00000246 ORIG_RAX: 00000000000000af [ 5.663508] RAX: ffffffffffffffda RBX: 00005643b487d140 RCX: 00007f7733b7823a [ 5.663509] RDX: 00007f77344ae8bd RSI: 0000000000865a77 RDI: 00007f772dfd3010 [ 5.663509] RBP: 00007f77344ae8bd R08: 0000000000000000 R09: 0000000300000001 [ 5.663510] R10: 00005643b488e410 R11: 0000000000000246 R12: 00007f772dfd3010 [ 5.663510] R13: 00005643b4879970 R14: 00005643b4890890 R15: 0000000003938700 [ 5.663511] ---[ end trace e1e9bc13f40b1150 ]--- [ 5.663730] ------------[ cut here ]------------ [ 5.663820] WARNING: CPU: 2 PID: 403 at drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_link.c:1894 write_i2c_default_retimer_setting.cold+0x32/0xab [amdgpu] [ 5.663820] Modules linked in: hid_generic usbhid amdgpu(+) crct10dif_pclmul crc32_pclmul crc32c_intel rtsx_pci_sdmmc ghash_clmulni_intel mmc_core amd_iommu_v2 gpu_sched i2c_a lgo_bit aesni_intel drm_kms_helper aes_x86_64 xhci_pci crypto_simd syscopyarea sysfillrect xhci_hcd sysimgblt fb_sys_fops ttm cryptd glue_helper drm usbcore serio_raw rtsx_pci vi deo wmi pinctrl_amd i2c_hid button dm_mirror dm_region_hash dm_log sg dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua efivarfs [ 5.663832] CPU: 2 PID: 403 Comm: systemd-udevd Tainted: G W 5.3.0-rc8-2.gd6f0b71-default #1 openSUSE Tumbleweed (unreleased) [ 5.663833] Hardware name: Acer Nitro AN515-42/Freed_RRS, BIOS V1.13 02/11/2019 [ 5.663912] RIP: 0010:write_i2c_default_retimer_setting.cold+0x32/0xab [amdgpu] [ 5.663913] Code: 89 2c b5 d8 0f 0b e9 6c 14 fd ff 48 c7 c7 c0 7d c7 c0 e8 76 2c b5 d8 0f 0b e9 ab 14 fd ff 48 c7 c7 c0 7d c7 c0 e8 63 2c b5 d8 <0f> 0b e9 ea 13 fd ff 48 c7 c7 c0 7d c7 c0 e8 50 2c b5 d8 0f 0b e9 [ 5.663913] RSP: 0018:ffffaccd804b7248 EFLAGS: 00010246 [ 5.663914] RAX: 0000000000000024 RBX: 0000000000000000 RCX: 0000000000000006 [ 5.663915] RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff9eb08ec99a10 [ 5.663915] RBP: ffff9eb077d401b8 R08: 000000015195ac4f R09: ffff9eb08f219c40 [ 5.663916] R10: 0000000000000453 R11: 00000000000e92f4 R12: 0000000000000000 [ 5.663916] R13: 0000000000000000 R14: ffff9eb077c00000 R15: ffff9eb077ce3800 [ 5.663917] FS: 00007f7734d34d40(0000) GS:ffff9eb08ec80000(0000) knlGS:0000000000000000 [ 5.663917] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.663918] CR2: 00007f772e838a70 CR3: 000000023ebe2000 CR4: 00000000003406e0 [ 5.663918] Call Trace: [ 5.663993] core_link_enable_stream+0x861/0x870 [amdgpu] [ 5.664067] ? dce110_apply_ctx_to_hw+0x4b0/0x530 [amdgpu] [ 5.664139] dce110_apply_ctx_to_hw+0x4b0/0x530 [amdgpu] [ 5.664212] dc_commit_state_no_check+0x216/0x540 [amdgpu] [ 5.664284] dc_commit_state+0x8f/0xb0 [amdgpu] [ 5.664357] amdgpu_dm_atomic_commit_tail+0x3bf/0xfb0 [amdgpu] [ 5.664430] ? fill_dc_plane_info_and_addr+0x340/0x340 [amdgpu] [ 5.664500] ? dm_plane_helper_prepare_fb+0x20d/0x290 [amdgpu] [ 5.664507] ? commit_tail+0x3c/0x70 [drm_kms_helper] [ 5.664512] commit_tail+0x3c/0x70 [drm_kms_helper] [ 5.664517] drm_atomic_helper_commit+0x108/0x110 [drm_kms_helper] [ 5.664528] drm_client_modeset_commit_atomic+0x1d0/0x1f0 [drm] [ 5.664539] drm_client_modeset_commit_force+0x50/0x150 [drm] [ 5.664545] drm_fb_helper_restore_fbdev_mode_unlocked+0x49/0xa0 [drm_kms_helper] [ 5.664550] drm_fb_helper_set_par+0x2c/0x50 [drm_kms_helper] [ 5.664551] fbcon_init+0x2a9/0x5d0 [ 5.664553] visual_init+0xce/0x130 [ 5.664554] do_bind_con_driver+0x1b9/0x2a0 [ 5.664556] do_take_over_console+0x115/0x180 [ 5.664557] do_fbcon_takeover+0x58/0xb0 [ 5.664559] register_framebuffer+0x1e4/0x300 [ 5.664564] __drm_fb_helper_initial_config_and_unlock+0x2fa/0x440 [drm_kms_helper] [ 5.664618] amdgpu_fbdev_init+0xbc/0xf0 [amdgpu] [ 5.664697] amdgpu_device_init.cold+0x5b5/0x8ec [amdgpu] [ 5.664748] amdgpu_driver_load_kms+0x86/0x1f0 [amdgpu] [ 5.664758] drm_dev_register+0x111/0x150 [drm] [ 5.664809] amdgpu_pci_probe+0xbd/0x120 [amdgpu] [ 5.664810] ? __pm_runtime_resume+0x58/0x80 [ 5.664812] local_pci_probe+0x42/0x80 [ 5.664813] pci_device_probe+0x107/0x1b0 [ 5.664814] really_probe+0xf0/0x380 [ 5.664815] driver_probe_device+0x59/0xd0 [ 5.664816] device_driver_attach+0x53/0x60 [ 5.664817] __driver_attach+0x8a/0x150 [ 5.664818] ? device_driver_attach+0x60/0x60 [ 5.664820] bus_for_each_dev+0x78/0xc0 [ 5.664821] bus_add_driver+0x14a/0x1e0 [ 5.664822] driver_register+0x6c/0xb0 [ 5.664823] ? 0xffffffffc070e000 [ 5.664824] do_one_initcall+0x46/0x1f4 [ 5.664826] ? _cond_resched+0x15/0x30 [ 5.664827] ? kmem_cache_alloc_trace+0x1c1/0x210 [ 5.664828] ? do_init_module+0x23/0x230 [ 5.664829] do_init_module+0x5c/0x230 [ 5.664830] load_module+0x14a8/0x1610 [ 5.664832] ? vmap_page_range_noflush+0x23c/0x350 [ 5.664834] ? __do_sys_init_module+0x16e/0x1a0 [ 5.664835] ? _cond_resched+0x15/0x30 [ 5.664836] __do_sys_init_module+0x16e/0x1a0 [ 5.664838] do_syscall_64+0x6e/0x1e0 [ 5.664839] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 5.664840] RIP: 0033:0x7f7733b7823a [ 5.664841] Code: 48 8b 0d 61 ac 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 af 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 2e ac 2b 00 f7 d8 64 89 01 48 [ 5.664842] RSP: 002b:00007ffffa6bac38 EFLAGS: 00000246 ORIG_RAX: 00000000000000af [ 5.664843] RAX: ffffffffffffffda RBX: 00005643b487d140 RCX: 00007f7733b7823a [ 5.664843] RDX: 00007f77344ae8bd RSI: 0000000000865a77 RDI: 00007f772dfd3010 [ 5.664844] RBP: 00007f77344ae8bd R08: 0000000000000000 R09: 0000000300000001 [ 5.664844] R10: 00005643b488e410 R11: 0000000000000246 R12: 00007f772dfd3010 [ 5.664844] R13: 00005643b4879970 R14: 00005643b4890890 R15: 0000000003938700 [ 5.664846] ---[ end trace e1e9bc13f40b1151 ]--- [ 5.665063] ------------[ cut here ]------------ [ 5.665150] WARNING: CPU: 2 PID: 403 at drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_link.c:1906 write_i2c_default_retimer_setting.cold+0xc/0xab [amdgpu] [ 5.665150] Modules linked in: hid_generic usbhid amdgpu(+) crct10dif_pclmul crc32_pclmul crc32c_intel rtsx_pci_sdmmc ghash_clmulni_intel mmc_core amd_iommu_v2 gpu_sched i2c_a lgo_bit aesni_intel drm_kms_helper aes_x86_64 xhci_pci crypto_simd syscopyarea sysfillrect xhci_hcd sysimgblt fb_sys_fops ttm cryptd glue_helper drm usbcore serio_raw rtsx_pci vi deo wmi pinctrl_amd i2c_hid button dm_mirror dm_region_hash dm_log sg dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua efivarfs [ 5.665159] CPU: 2 PID: 403 Comm: systemd-udevd Tainted: G W 5.3.0-rc8-2.gd6f0b71-default #1 openSUSE Tumbleweed (unreleased) [ 5.665159] Hardware name: Acer Nitro AN515-42/Freed_RRS, BIOS V1.13 02/11/2019 [ 5.665238] RIP: 0010:write_i2c_default_retimer_setting.cold+0xc/0xab [amdgpu] [ 5.665239] Code: af 2c b5 d8 0f 0b e9 fd 10 fd ff 48 c7 c7 c0 7d c7 c0 e8 9c 2c b5 d8 0f 0b e9 d3 0f fd ff 48 c7 c7 c0 7d c7 c0 e8 89 2c b5 d8 <0f> 0b e9 6c 14 fd ff 48 c7 c7 c0 7d c7 c0 e8 76 2c b5 d8 0f 0b e9 [ 5.665240] RSP: 0018:ffffaccd804b7248 EFLAGS: 00010246 [ 5.665241] RAX: 0000000000000024 RBX: 0000000000000000 RCX: 0000000000000006 [ 5.665241] RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff9eb08ec99a10 [ 5.665241] RBP: ffff9eb077d401b8 R08: 0000000151aa03f6 R09: ffff9eb08f219c40 [ 5.665242] R10: 00000000000004a0 R11: 00000000000e7d2c R12: 0000000000000000 [ 5.665242] R13: 0000000000000000 R14: ffff9eb077c00000 R15: ffff9eb077ce3800 [ 5.665243] FS: 00007f7734d34d40(0000) GS:ffff9eb08ec80000(0000) knlGS:0000000000000000 [ 5.665244] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.665244] CR2: 00007f772e838a70 CR3: 000000023ebe2000 CR4: 00000000003406e0 [ 5.665245] Call Trace: [ 5.665319] core_link_enable_stream+0x861/0x870 [amdgpu] [ 5.665394] ? dce110_apply_ctx_to_hw+0x4b0/0x530 [amdgpu] [ 5.665466] dce110_apply_ctx_to_hw+0x4b0/0x530 [amdgpu] [ 5.665538] dc_commit_state_no_check+0x216/0x540 [amdgpu] [ 5.665609] dc_commit_state+0x8f/0xb0 [amdgpu] [ 5.665683] amdgpu_dm_atomic_commit_tail+0x3bf/0xfb0 [amdgpu] [ 5.665755] ? fill_dc_plane_info_and_addr+0x340/0x340 [amdgpu] [ 5.665825] ? dm_plane_helper_prepare_fb+0x20d/0x290 [amdgpu] [ 5.665831] ? commit_tail+0x3c/0x70 [drm_kms_helper] [ 5.665836] commit_tail+0x3c/0x70 [drm_kms_helper] [ 5.665842] drm_atomic_helper_commit+0x108/0x110 [drm_kms_helper] [ 5.665853] drm_client_modeset_commit_atomic+0x1d0/0x1f0 [drm] [ 5.665863] drm_client_modeset_commit_force+0x50/0x150 [drm] [ 5.665869] drm_fb_helper_restore_fbdev_mode_unlocked+0x49/0xa0 [drm_kms_helper] [ 5.665874] drm_fb_helper_set_par+0x2c/0x50 [drm_kms_helper] [ 5.665876] fbcon_init+0x2a9/0x5d0 [ 5.665877] visual_init+0xce/0x130 [ 5.665879] do_bind_con_driver+0x1b9/0x2a0 [ 5.665880] do_take_over_console+0x115/0x180 [ 5.665881] do_fbcon_takeover+0x58/0xb0 [ 5.665883] register_framebuffer+0x1e4/0x300 [ 5.665888] __drm_fb_helper_initial_config_and_unlock+0x2fa/0x440 [drm_kms_helper] [ 5.665943] amdgpu_fbdev_init+0xbc/0xf0 [amdgpu] [ 5.666021] amdgpu_device_init.cold+0x5b5/0x8ec [amdgpu] [ 5.666073] amdgpu_driver_load_kms+0x86/0x1f0 [amdgpu] [ 5.666082] drm_dev_register+0x111/0x150 [drm] [ 5.666133] amdgpu_pci_probe+0xbd/0x120 [amdgpu] [ 5.666135] ? __pm_runtime_resume+0x58/0x80 [ 5.666136] local_pci_probe+0x42/0x80 [ 5.666137] pci_device_probe+0x107/0x1b0 [ 5.666138] really_probe+0xf0/0x380 [ 5.666139] driver_probe_device+0x59/0xd0 [ 5.666140] device_driver_attach+0x53/0x60 [ 5.666141] __driver_attach+0x8a/0x150 [ 5.666142] ? device_driver_attach+0x60/0x60 [ 5.666143] bus_for_each_dev+0x78/0xc0 [ 5.666145] bus_add_driver+0x14a/0x1e0 [ 5.666146] driver_register+0x6c/0xb0 [ 5.666147] ? 0xffffffffc070e000 [ 5.666148] do_one_initcall+0x46/0x1f4 [ 5.666149] ? _cond_resched+0x15/0x30 [ 5.666150] ? kmem_cache_alloc_trace+0x1c1/0x210 [ 5.666151] ? do_init_module+0x23/0x230 [ 5.666153] do_init_module+0x5c/0x230 [ 5.666154] load_module+0x14a8/0x1610 [ 5.666155] ? vmap_page_range_noflush+0x23c/0x350 [ 5.666157] ? __do_sys_init_module+0x16e/0x1a0 [ 5.666158] ? _cond_resched+0x15/0x30 [ 5.666159] __do_sys_init_module+0x16e/0x1a0 [ 5.666161] do_syscall_64+0x6e/0x1e0 [ 5.666162] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 5.666163] RIP: 0033:0x7f7733b7823a [ 5.666164] Code: 48 8b 0d 61 ac 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 af 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 2e ac 2b 00 f7 d8 64 89 01 48 [ 5.666165] RSP: 002b:00007ffffa6bac38 EFLAGS: 00000246 ORIG_RAX: 00000000000000af [ 5.666166] RAX: ffffffffffffffda RBX: 00005643b487d140 RCX: 00007f7733b7823a [ 5.666166] RDX: 00007f77344ae8bd RSI: 0000000000865a77 RDI: 00007f772dfd3010 [ 5.666167] RBP: 00007f77344ae8bd R08: 0000000000000000 R09: 0000000300000001 [ 5.666167] R10: 00005643b488e410 R11: 0000000000000246 R12: 00007f772dfd3010 [ 5.666168] R13: 00005643b4879970 R14: 00005643b4890890 R15: 0000000003938700 [ 5.666169] ---[ end trace e1e9bc13f40b1152 ]--- [ 5.666395] ------------[ cut here ]------------ [ 5.666481] WARNING: CPU: 2 PID: 403 at drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_link.c:1918 write_i2c_default_retimer_setting.cold+0x1f/0xab [amdgpu] [ 5.666481] Modules linked in: hid_generic usbhid amdgpu(+) crct10dif_pclmul crc32_pclmul crc32c_intel rtsx_pci_sdmmc ghash_clmulni_intel mmc_core amd_iommu_v2 gpu_sched i2c_a lgo_bit aesni_intel drm_kms_helper aes_x86_64 xhci_pci crypto_simd syscopyarea sysfillrect xhci_hcd sysimgblt fb_sys_fops ttm cryptd glue_helper drm usbcore serio_raw rtsx_pci vi deo wmi pinctrl_amd i2c_hid button dm_mirror dm_region_hash dm_log sg dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua efivarfs [ 5.666491] CPU: 2 PID: 403 Comm: systemd-udevd Tainted: G W 5.3.0-rc8-2.gd6f0b71-default #1 openSUSE Tumbleweed (unreleased) [ 5.666491] Hardware name: Acer Nitro AN515-42/Freed_RRS, BIOS V1.13 02/11/2019 [ 5.666569] RIP: 0010:write_i2c_default_retimer_setting.cold+0x1f/0xab [amdgpu] [ 5.666571] Code: 9c 2c b5 d8 0f 0b e9 d3 0f fd ff 48 c7 c7 c0 7d c7 c0 e8 89 2c b5 d8 0f 0b e9 6c 14 fd ff 48 c7 c7 c0 7d c7 c0 e8 76 2c b5 d8 <0f> 0b e9 ab 14 fd ff 48 c7 c7 c0 7d c7 c0 e8 63 2c b5 d8 0f 0b e9 [ 5.666571] RSP: 0018:ffffaccd804b7248 EFLAGS: 00010246 [ 5.666573] RAX: 0000000000000024 RBX: 0000000000000000 RCX: 0000000000000000 [ 5.666573] RDX: 0000000000000000 RSI: ffff9eb08ec99a18 RDI: ffff9eb08ec99a18 [ 5.666574] RBP: ffff9eb077d401b8 R08: ffff9eb08ec99a18 R09: ffff9eb08f219c40 [ 5.666574] R10: 00000000000004ed R11: 00000000000e6764 R12: 0000000000000000 [ 5.666574] R13: 0000000000000000 R14: ffff9eb077c00000 R15: ffff9eb077ce3800 [ 5.666575] FS: 00007f7734d34d40(0000) GS:ffff9eb08ec80000(0000) knlGS:0000000000000000 [ 5.666576] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.666576] CR2: 00007f772e838a70 CR3: 000000023ebe2000 CR4: 00000000003406e0 [ 5.666577] Call Trace: [ 5.666651] core_link_enable_stream+0x861/0x870 [amdgpu] [ 5.666724] ? dce110_apply_ctx_to_hw+0x4b0/0x530 [amdgpu] [ 5.666796] dce110_apply_ctx_to_hw+0x4b0/0x530 [amdgpu] [ 5.666868] dc_commit_state_no_check+0x216/0x540 [amdgpu] [ 5.666940] dc_commit_state+0x8f/0xb0 [amdgpu] [ 5.667013] amdgpu_dm_atomic_commit_tail+0x3bf/0xfb0 [amdgpu] [ 5.667085] ? fill_dc_plane_info_and_addr+0x340/0x340 [amdgpu] [ 5.667155] ? dm_plane_helper_prepare_fb+0x20d/0x290 [amdgpu] [ 5.667161] ? commit_tail+0x3c/0x70 [drm_kms_helper] [ 5.667166] commit_tail+0x3c/0x70 [drm_kms_helper] [ 5.667172] drm_atomic_helper_commit+0x108/0x110 [drm_kms_helper] [ 5.667182] drm_client_modeset_commit_atomic+0x1d0/0x1f0 [drm] [ 5.667193] drm_client_modeset_commit_force+0x50/0x150 [drm] [ 5.667199] drm_fb_helper_restore_fbdev_mode_unlocked+0x49/0xa0 [drm_kms_helper] [ 5.667204] drm_fb_helper_set_par+0x2c/0x50 [drm_kms_helper] [ 5.667206] fbcon_init+0x2a9/0x5d0 [ 5.667207] visual_init+0xce/0x130 [ 5.667209] do_bind_con_driver+0x1b9/0x2a0 [ 5.667210] do_take_over_console+0x115/0x180 [ 5.667211] do_fbcon_takeover+0x58/0xb0 [ 5.667213] register_framebuffer+0x1e4/0x300 [ 5.667218] __drm_fb_helper_initial_config_and_unlock+0x2fa/0x440 [drm_kms_helper] [ 5.667273] amdgpu_fbdev_init+0xbc/0xf0 [amdgpu] [ 5.667351] amdgpu_device_init.cold+0x5b5/0x8ec [amdgpu] [ 5.667402] amdgpu_driver_load_kms+0x86/0x1f0 [amdgpu] [ 5.667411] drm_dev_register+0x111/0x150 [drm] [ 5.667462] amdgpu_pci_probe+0xbd/0x120 [amdgpu] [ 5.667464] ? __pm_runtime_resume+0x58/0x80 [ 5.667466] local_pci_probe+0x42/0x80 [ 5.667467] pci_device_probe+0x107/0x1b0 [ 5.667468] really_probe+0xf0/0x380 [ 5.667469] driver_probe_device+0x59/0xd0 [ 5.667470] device_driver_attach+0x53/0x60 [ 5.667471] __driver_attach+0x8a/0x150 [ 5.667472] ? device_driver_attach+0x60/0x60 [ 5.667473] bus_for_each_dev+0x78/0xc0 [ 5.667475] bus_add_driver+0x14a/0x1e0 [ 5.667476] driver_register+0x6c/0xb0 [ 5.667477] ? 0xffffffffc070e000 [ 5.667478] do_one_initcall+0x46/0x1f4 [ 5.667479] ? _cond_resched+0x15/0x30 [ 5.667481] ? kmem_cache_alloc_trace+0x1c1/0x210 [ 5.667482] ? do_init_module+0x23/0x230 [ 5.667483] do_init_module+0x5c/0x230 [ 5.667484] load_module+0x14a8/0x1610 [ 5.667486] ? vmap_page_range_noflush+0x23c/0x350 [ 5.667488] ? __do_sys_init_module+0x16e/0x1a0 [ 5.667489] ? _cond_resched+0x15/0x30 [ 5.667490] __do_sys_init_module+0x16e/0x1a0 [ 5.667492] do_syscall_64+0x6e/0x1e0 [ 5.667493] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 5.667494] RIP: 0033:0x7f7733b7823a [ 5.667495] Code: 48 8b 0d 61 ac 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 af 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 2e ac 2b 00 f7 d8 64 89 01 48 [ 5.667496] RSP: 002b:00007ffffa6bac38 EFLAGS: 00000246 ORIG_RAX: 00000000000000af [ 5.667497] RAX: ffffffffffffffda RBX: 00005643b487d140 RCX: 00007f7733b7823a [ 5.667498] RDX: 00007f77344ae8bd RSI: 0000000000865a77 RDI: 00007f772dfd3010 [ 5.667498] RBP: 00007f77344ae8bd R08: 0000000000000000 R09: 0000000300000001 [ 5.667499] R10: 00005643b488e410 R11: 0000000000000246 R12: 00007f772dfd3010 [ 5.667499] R13: 00005643b4879970 R14: 00005643b4890890 R15: 0000000003938700 [ 5.667500] ---[ end trace e1e9bc13f40b1153 ]--- [ 5.667718] ------------[ cut here ]------------ [ 5.667804] WARNING: CPU: 2 PID: 403 at drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_link.c:1930 write_i2c_default_retimer_setting.cold+0x58/0xab [amdgpu] [ 5.667805] Modules linked in: hid_generic usbhid amdgpu(+) crct10dif_pclmul crc32_pclmul crc32c_intel rtsx_pci_sdmmc ghash_clmulni_intel mmc_core amd_iommu_v2 gpu_sched i2c_a lgo_bit aesni_intel drm_kms_helper aes_x86_64 xhci_pci crypto_simd syscopyarea sysfillrect xhci_hcd sysimgblt fb_sys_fops ttm cryptd glue_helper drm usbcore serio_raw rtsx_pci vi deo wmi pinctrl_amd i2c_hid button dm_mirror dm_region_hash dm_log sg dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua efivarfs [ 5.667814] CPU: 2 PID: 403 Comm: systemd-udevd Tainted: G W 5.3.0-rc8-2.gd6f0b71-default #1 openSUSE Tumbleweed (unreleased) [ 5.667814] Hardware name: Acer Nitro AN515-42/Freed_RRS, BIOS V1.13 02/11/2019 [ 5.667892] RIP: 0010:write_i2c_default_retimer_setting.cold+0x58/0xab [amdgpu] [ 5.667894] Code: 63 2c b5 d8 0f 0b e9 ea 13 fd ff 48 c7 c7 c0 7d c7 c0 e8 50 2c b5 d8 0f 0b e9 83 13 fd ff 48 c7 c7 c0 7d c7 c0 e8 3d 2c b5 d8 <0f> 0b e9 cd 14 fd ff 48 c7 c7 c0 7d c7 c0 e8 2a 2c b5 d8 0f 0b e9 [ 5.667894] RSP: 0018:ffffaccd804b7248 EFLAGS: 00010246 [ 5.667896] RAX: 0000000000000024 RBX: 0000000000000000 RCX: 0000000000000006 [ 5.667896] RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff9eb08ec99a10 [ 5.667896] RBP: ffff9eb077d401b8 R08: 0000000151d285dd R09: ffff9eb08f219c40 [ 5.667897] R10: 000000000000053a R11: 00000000000e519c R12: 0000000000000000 [ 5.667897] R13: 0000000000000000 R14: ffff9eb077c00000 R15: ffff9eb077ce3800 [ 5.667898] FS: 00007f7734d34d40(0000) GS:ffff9eb08ec80000(0000) knlGS:0000000000000000 [ 5.667899] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.667899] CR2: 00007f772e838a70 CR3: 000000023ebe2000 CR4: 00000000003406e0 [ 5.667900] Call Trace: [ 5.667973] core_link_enable_stream+0x861/0x870 [amdgpu] [ 5.668046] ? dce110_apply_ctx_to_hw+0x4b0/0x530 [amdgpu] [ 5.668118] dce110_apply_ctx_to_hw+0x4b0/0x530 [amdgpu] [ 5.668190] dc_commit_state_no_check+0x216/0x540 [amdgpu] [ 5.668262] dc_commit_state+0x8f/0xb0 [amdgpu] [ 5.668334] amdgpu_dm_atomic_commit_tail+0x3bf/0xfb0 [amdgpu] [ 5.668407] ? fill_dc_plane_info_and_addr+0x340/0x340 [amdgpu] [ 5.668476] ? dm_plane_helper_prepare_fb+0x20d/0x290 [amdgpu] [ 5.668483] ? commit_tail+0x3c/0x70 [drm_kms_helper] [ 5.668488] commit_tail+0x3c/0x70 [drm_kms_helper] [ 5.668493] drm_atomic_helper_commit+0x108/0x110 [drm_kms_helper] [ 5.668504] drm_client_modeset_commit_atomic+0x1d0/0x1f0 [drm] [ 5.668515] drm_client_modeset_commit_force+0x50/0x150 [drm] [ 5.668520] drm_fb_helper_restore_fbdev_mode_unlocked+0x49/0xa0 [drm_kms_helper] [ 5.668526] drm_fb_helper_set_par+0x2c/0x50 [drm_kms_helper] [ 5.668527] fbcon_init+0x2a9/0x5d0 [ 5.668529] visual_init+0xce/0x130 [ 5.668530] do_bind_con_driver+0x1b9/0x2a0 [ 5.668532] do_take_over_console+0x115/0x180 [ 5.668533] do_fbcon_takeover+0x58/0xb0 [ 5.668534] register_framebuffer+0x1e4/0x300 [ 5.668540] __drm_fb_helper_initial_config_and_unlock+0x2fa/0x440 [drm_kms_helper] [ 5.668594] amdgpu_fbdev_init+0xbc/0xf0 [amdgpu] [ 5.668672] amdgpu_device_init.cold+0x5b5/0x8ec [amdgpu] [ 5.668724] amdgpu_driver_load_kms+0x86/0x1f0 [amdgpu] [ 5.668733] drm_dev_register+0x111/0x150 [drm] [ 5.668784] amdgpu_pci_probe+0xbd/0x120 [amdgpu] [ 5.668785] ? __pm_runtime_resume+0x58/0x80 [ 5.668787] local_pci_probe+0x42/0x80 [ 5.668788] pci_device_probe+0x107/0x1b0 [ 5.668789] really_probe+0xf0/0x380 [ 5.668790] driver_probe_device+0x59/0xd0 [ 5.668791] device_driver_attach+0x53/0x60 [ 5.668792] __driver_attach+0x8a/0x150 [ 5.668793] ? device_driver_attach+0x60/0x60 [ 5.668794] bus_for_each_dev+0x78/0xc0 [ 5.668796] bus_add_driver+0x14a/0x1e0 [ 5.668797] driver_register+0x6c/0xb0 [ 5.668798] ? 0xffffffffc070e000 [ 5.668799] do_one_initcall+0x46/0x1f4 [ 5.668800] ? _cond_resched+0x15/0x30 [ 5.668802] ? kmem_cache_alloc_trace+0x1c1/0x210 [ 5.668803] ? do_init_module+0x23/0x230 [ 5.668804] do_init_module+0x5c/0x230 [ 5.668805] load_module+0x14a8/0x1610 [ 5.668807] ? vmap_page_range_noflush+0x23c/0x350 [ 5.668809] ? __do_sys_init_module+0x16e/0x1a0 [ 5.668810] ? _cond_resched+0x15/0x30 [ 5.668811] __do_sys_init_module+0x16e/0x1a0 [ 5.668813] do_syscall_64+0x6e/0x1e0 [ 5.668814] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 5.668815] RIP: 0033:0x7f7733b7823a [ 5.668816] Code: 48 8b 0d 61 ac 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 af 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 2e ac 2b 00 f7 d8 64 89 01 48 [ 5.668817] RSP: 002b:00007ffffa6bac38 EFLAGS: 00000246 ORIG_RAX: 00000000000000af [ 5.668818] RAX: ffffffffffffffda RBX: 00005643b487d140 RCX: 00007f7733b7823a [ 5.668818] RDX: 00007f77344ae8bd RSI: 0000000000865a77 RDI: 00007f772dfd3010 [ 5.668819] RBP: 00007f77344ae8bd R08: 0000000000000000 R09: 0000000300000001 [ 5.668819] R10: 00005643b488e410 R11: 0000000000000246 R12: 00007f772dfd3010 [ 5.668820] R13: 00005643b4879970 R14: 00005643b4890890 R15: 0000000003938700 [ 5.668821] ---[ end trace e1e9bc13f40b1154 ]--- [ 5.669039] ------------[ cut here ]------------ [ 5.669125] WARNING: CPU: 2 PID: 403 at drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_link.c:1942 write_i2c_default_retimer_setting.cold+0x6b/0xab [amdgpu] [ 5.669125] Modules linked in: hid_generic usbhid amdgpu(+) crct10dif_pclmul crc32_pclmul crc32c_intel rtsx_pci_sdmmc ghash_clmulni_intel mmc_core amd_iommu_v2 gpu_sched i2c_a lgo_bit aesni_intel drm_kms_helper aes_x86_64 xhci_pci crypto_simd syscopyarea sysfillrect xhci_hcd sysimgblt fb_sys_fops ttm cryptd glue_helper drm usbcore serio_raw rtsx_pci vi deo wmi pinctrl_amd i2c_hid button dm_mirror dm_region_hash dm_log sg dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua efivarfs [ 5.669134] CPU: 2 PID: 403 Comm: systemd-udevd Tainted: G W 5.3.0-rc8-2.gd6f0b71-default #1 openSUSE Tumbleweed (unreleased) [ 5.669135] Hardware name: Acer Nitro AN515-42/Freed_RRS, BIOS V1.13 02/11/2019 [ 5.669213] RIP: 0010:write_i2c_default_retimer_setting.cold+0x6b/0xab [amdgpu] [ 5.669214] Code: 50 2c b5 d8 0f 0b e9 83 13 fd ff 48 c7 c7 c0 7d c7 c0 e8 3d 2c b5 d8 0f 0b e9 cd 14 fd ff 48 c7 c7 c0 7d c7 c0 e8 2a 2c b5 d8 <0f> 0b e9 0b 15 fd ff 48 c7 c7 c0 7d c7 c0 e8 17 2c b5 d8 0f 0b e9 [ 5.669215] RSP: 0018:ffffaccd804b7248 EFLAGS: 00010246 [ 5.669216] RAX: 0000000000000024 RBX: 0000000000000000 RCX: 0000000000000006 [ 5.669217] RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff9eb08ec99a10 [ 5.669217] RBP: ffff9eb077d401b8 R08: 0000000151e6abb2 R09: ffff9eb08f219c40 [ 5.669218] R10: 0000000000000587 R11: 00000000000e3bd4 R12: 0000000000000000 [ 5.669218] R13: 0000000000000000 R14: ffff9eb077c00000 R15: ffff9eb077ce3800 [ 5.669219] FS: 00007f7734d34d40(0000) GS:ffff9eb08ec80000(0000) knlGS:0000000000000000 [ 5.669219] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.669220] CR2: 00007f772e838a70 CR3: 000000023ebe2000 CR4: 00000000003406e0 [ 5.669220] Call Trace: [ 5.669294] core_link_enable_stream+0x861/0x870 [amdgpu] [ 5.669369] ? dce110_apply_ctx_to_hw+0x4b0/0x530 [amdgpu] [ 5.669440] dce110_apply_ctx_to_hw+0x4b0/0x530 [amdgpu] [ 5.669513] dc_commit_state_no_check+0x216/0x540 [amdgpu] [ 5.669584] dc_commit_state+0x8f/0xb0 [amdgpu] [ 5.669657] amdgpu_dm_atomic_commit_tail+0x3bf/0xfb0 [amdgpu] [ 5.669729] ? fill_dc_plane_info_and_addr+0x340/0x340 [amdgpu] [ 5.669798] ? dm_plane_helper_prepare_fb+0x20d/0x290 [amdgpu] [ 5.669805] ? commit_tail+0x3c/0x70 [drm_kms_helper] [ 5.669810] commit_tail+0x3c/0x70 [drm_kms_helper] [ 5.669816] drm_atomic_helper_commit+0x108/0x110 [drm_kms_helper] [ 5.669826] drm_client_modeset_commit_atomic+0x1d0/0x1f0 [drm] [ 5.669837] drm_client_modeset_commit_force+0x50/0x150 [drm] [ 5.669843] drm_fb_helper_restore_fbdev_mode_unlocked+0x49/0xa0 [drm_kms_helper] [ 5.669848] drm_fb_helper_set_par+0x2c/0x50 [drm_kms_helper] [ 5.669850] fbcon_init+0x2a9/0x5d0 [ 5.669852] visual_init+0xce/0x130 [ 5.669853] do_bind_con_driver+0x1b9/0x2a0 [ 5.669854] do_take_over_console+0x115/0x180 [ 5.669856] do_fbcon_takeover+0x58/0xb0 [ 5.669857] register_framebuffer+0x1e4/0x300 [ 5.669862] __drm_fb_helper_initial_config_and_unlock+0x2fa/0x440 [drm_kms_helper] [ 5.669917] amdgpu_fbdev_init+0xbc/0xf0 [amdgpu] [ 5.669995] amdgpu_device_init.cold+0x5b5/0x8ec [amdgpu] [ 5.670047] amdgpu_driver_load_kms+0x86/0x1f0 [amdgpu] [ 5.670056] drm_dev_register+0x111/0x150 [drm] [ 5.670107] amdgpu_pci_probe+0xbd/0x120 [amdgpu] [ 5.670109] ? __pm_runtime_resume+0x58/0x80 [ 5.670110] local_pci_probe+0x42/0x80 [ 5.670111] pci_device_probe+0x107/0x1b0 [ 5.670112] really_probe+0xf0/0x380 [ 5.670114] driver_probe_device+0x59/0xd0 [ 5.670115] device_driver_attach+0x53/0x60 [ 5.670115] __driver_attach+0x8a/0x150 [ 5.670116] ? device_driver_attach+0x60/0x60 [ 5.670118] bus_for_each_dev+0x78/0xc0 [ 5.670119] bus_add_driver+0x14a/0x1e0 [ 5.670120] driver_register+0x6c/0xb0 [ 5.670121] ? 0xffffffffc070e000 [ 5.670122] do_one_initcall+0x46/0x1f4 [ 5.670124] ? _cond_resched+0x15/0x30 [ 5.670125] ? kmem_cache_alloc_trace+0x1c1/0x210 [ 5.670126] ? do_init_module+0x23/0x230 [ 5.670127] do_init_module+0x5c/0x230 [ 5.670129] load_module+0x14a8/0x1610 [ 5.670130] ? vmap_page_range_noflush+0x23c/0x350 [ 5.670132] ? __do_sys_init_module+0x16e/0x1a0 [ 5.670133] ? _cond_resched+0x15/0x30 [ 5.670134] __do_sys_init_module+0x16e/0x1a0 [ 5.670136] do_syscall_64+0x6e/0x1e0 [ 5.670137] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 5.670138] RIP: 0033:0x7f7733b7823a [ 5.670139] Code: 48 8b 0d 61 ac 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 af 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 2e ac 2b 00 f7 d8 64 89 01 48 [ 5.670140] RSP: 002b:00007ffffa6bac38 EFLAGS: 00000246 ORIG_RAX: 00000000000000af [ 5.670141] RAX: ffffffffffffffda RBX: 00005643b487d140 RCX: 00007f7733b7823a [ 5.670142] RDX: 00007f77344ae8bd RSI: 0000000000865a77 RDI: 00007f772dfd3010 [ 5.670142] RBP: 00007f77344ae8bd R08: 0000000000000000 R09: 0000000300000001 [ 5.670143] R10: 00005643b488e410 R11: 0000000000000246 R12: 00007f772dfd3010 [ 5.670143] R13: 00005643b4879970 R14: 00005643b4890890 R15: 0000000003938700 [ 5.670144] ---[ end trace e1e9bc13f40b1155 ]--- *********************************************************************** I'm ok with applying and testing kernel patches if need be. ;) -- You are receiving this mail because: You are watching the assignee of the bug.

1 4

[PATCH v3 0/4] Converter R-Car DU to the DRM bridge connector helper
by Laurent Pinchart 22 Aug '21

22 Aug '21

Hello, This patch series converts the R-Car DU driver to use the DRM bridge connector helper drm_bridge_connector_init(). The bulk of the v1 series was converting the adv7511, simple-bridge and dw-hdmi drivers to make connector creation optional (through the DRM_BRIDGE_ATTACH_NO_CONNECTOR flag), and have already been merged. v2 included the remaining patches and has bitrotten. v3 rebased the code and should be ready for merge. Patch 1/4 adds support to the dw-hdmi driver to attach to a downstream bridge if one is specified in DT. As the DT port number corresponding to the video output differs between platforms that integrate the dw-hdmi (some of them even don't have a video output port, which should probably be fixed, but that's out of scope for this series), the port number has to be specified by the platform glue layer. Patch 2/4 then addresses the rcar-lvds driver. Instead of implementing direct support for DRM_BRIDGE_ATTACH_NO_CONNECTOR, it simply removes code that shouldn't have been in the driver in the first place by switching to the panel bridge helper. Patch 3/4 specifies the port number in the R-Car dw-hdmi glue layer, as required by 1/4. Patch 4/4 finally makes use of the drm_bridge_connector_init() helper. The series has been tested on the Renesas R-Car Salvator-XS and Draak boards with the VGA, HDMI and LVDS outputs. Laurent Pinchart (4): drm: bridge: dw-hdmi: Attach to next bridge if available drm: rcar-du: lvds: Convert to DRM panel bridge helper drm: rcar-du: dw-hdmi: Set output port number drm: rcar-du: Use drm_bridge_connector_init() helper drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 54 +++++++++- drivers/gpu/drm/rcar-du/rcar_du_encoder.c | 26 ++++- drivers/gpu/drm/rcar-du/rcar_dw_hdmi.c | 1 + drivers/gpu/drm/rcar-du/rcar_lvds.c | 120 +++------------------- include/drm/bridge/dw_hdmi.h | 2 + 5 files changed, 89 insertions(+), 114 deletions(-) -- Regards, Laurent Pinchart

4 12

[PATCH v2 0/8] drm/bridge: Make panel and bridge probe order consistent
by Maxime Ripard 20 Aug '21

20 Aug '21

Hi, We've encountered an issue with the RaspberryPi DSI panel that prevented the whole display driver from probing. The issue is described in detail in the commit 7213246a803f ("drm/vc4: dsi: Only register our component once a DSI device is attached"), but the basic idea is that since the panel is probed through i2c, there's no synchronization between its probe and the registration of the MIPI-DSI host it's attached to. We initially moved the component framework registration to the MIPI-DSI Host attach hook to make sure we register our component only when we have a DSI device attached to our MIPI-DSI host, and then use lookup our DSI device in our bind hook. However, all the DSI bridges controlled through i2c are only registering their associated DSI device in their bridge attach hook, meaning with our change above, we never got that far, and therefore ended up in the same situation than the one we were trying to fix for panels. Since the RaspberryPi panel is the only driver in that situation, whereas it seems like there's a consensus in bridge drivers, it makes more sense to try to mimic the bridge pattern in the panel driver. However, panels don't have an attach hook, and adding more panel hooks would lead to more path to maintain in each and every driver, while the general push is towards bridges. We also have to make sure that each and every DSI host and device driver behaves the same in order to have expectations to rely on. The solution I'm proposing is thus done in several steps: - We get rid of the initial patch to make sure we support the bridge case, and not the odd-panel one. - Add a function that returns a bridge from a DT node, reducing the amount of churn in each and every driver and making it a real incentive to not care about panels in display drivers but only bridges. - Add an attach and detach hook into the panel operations, and make it called automatically by the DRM panel bridge. - Convert the VC4 DSI host to this new bridge function, and the RaspberryPi Panel to the new attach and detach hooks. If the general approach is agreed upon, other drivers will obviously be converted to drm_of_get_next. Let me know what you think, Maxime --- Changes from v1: - Change the name of drm_of_get_next function to drm_of_get_bridge - Mention the revert of 87154ff86bf6 and squash the two patches that were reverting that commit - Add some documentation - Make drm_panel_attach and _detach succeed when no callback is there Maxime Ripard (8): Revert "drm/vc4: dsi: Only register our component once a DSI device is attached" drm/bridge: Add a function to abstract away panels drm/bridge: Add documentation sections drm/bridge: Document the probe issue with MIPI-DSI bridges drm/panel: Create attach and detach callbacks drm/vc4: dsi: Switch to drm_of_get_bridge drm/panel: raspberrypi-touchscreen: Use the attach hook drm/panel: raspberrypi-touchscreen: Remove MIPI-DSI driver Documentation/gpu/drm-kms-helpers.rst | 12 ++ drivers/gpu/drm/bridge/panel.c | 6 + drivers/gpu/drm/drm_bridge.c | 114 ++++++++++++- drivers/gpu/drm/drm_of.c | 3 + drivers/gpu/drm/drm_panel.c | 47 ++++++ .../drm/panel/panel-raspberrypi-touchscreen.c | 158 +++++++++--------- drivers/gpu/drm/vc4/vc4_drv.c | 2 + drivers/gpu/drm/vc4/vc4_dsi.c | 53 +++--- include/drm/drm_bridge.h | 2 + include/drm/drm_panel.h | 27 +++ 10 files changed, 303 insertions(+), 121 deletions(-) -- 2.31.1

4 12

[PATCH v2 0/9] PCI/VGA: Rework default VGA device selection
by Bjorn Helgaas 20 Aug '21

20 Aug '21

From: Bjorn Helgaas <bhelgaas(a)google.com> This is a little bit of rework and extension of Huacai's nice work at [1]. It moves the VGA arbiter to the PCI subsystem, fixes a few nits, and breaks a few pieces off Huacai's patch to make the main patch a little smaller. That last patch is still not very small, and it needs a commit log, as I mentioned at [2]. All comments welcome! [1] https://lore.kernel.org/dri-devel/20210705100503.1120643-1-chenhuacai@loong… [2] https://lore.kernel.org/r/20210720221923.GA43331@bjorn-Precision-5520 Bjorn Helgaas (4): PCI/VGA: Move vgaarb to drivers/pci PCI/VGA: Replace full MIT license text with SPDX identifier PCI/VGA: Use unsigned format string to print lock counts PCI/VGA: Remove empty vga_arb_device_card_gone() Huacai Chen (5): PCI/VGA: Move vga_arb_integrated_gpu() earlier in file PCI/VGA: Prefer vga_default_device() PCI/VGA: Split out vga_arb_update_default_device() PCI/VGA: Log bridge control messages when adding devices PCI/VGA: Rework default VGA device selection drivers/gpu/vga/Kconfig | 19 --- drivers/gpu/vga/Makefile | 1 - drivers/pci/Kconfig | 19 +++ drivers/pci/Makefile | 1 + drivers/{gpu/vga => pci}/vgaarb.c | 269 ++++++++++++------------------ 5 files changed, 126 insertions(+), 183 deletions(-) rename drivers/{gpu/vga => pci}/vgaarb.c (90%) -- 2.25.1

3 18

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dri-devel July 2021