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2025-07-05drm/msm: enable separate binding of GPU and display devicesDmitry Baryshkov
There are cases when we want to have separate DRM devices for GPU and display pipelines. One example is development, when it is beneficial to be able to bind the GPU driver separately, without the display pipeline (and without the hacks adding "amd,imageon" to the compatible string). Another example is some of Qualcomm platforms, which have two MDSS units, but only one GPU. With current approach it is next to impossible to support this usecase properly, while separate binding allows users to have three DRM devices: two for MDSS units and a single headless GPU. Add kernel param msm.separate_gpu_kms, which if set to true forces creation of separate display and GPU DRM devices. Mesa supports this setup by using the kmsro wrapper. The param is disabled by default, in order to be able to test userspace for the compatibility issues. Simple clients are able to handle this setup automatically. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/662590/ [Rob: renamed the modparam to separate_gpu_kms, and add missing DRIVER_GEM_GPUVA] Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
2025-07-05drm/msm: rework binding of Imageon GPUsDmitry Baryshkov
Currently the msm driver creates an extra interim platform device for Imageon GPUs. This is not ideal, as the device doesn't have corresponding OF node. If the headless mode is used for newer GPUs, then the msm_use_mmu() function can not detect corresponding IOMMU devices. Also the DRM device (although it's headless) is created with modesetting flags being set. To solve all these issues, rework the way the Imageon devices are bound. Remove the interim device, don't register a component and instead use a cut-down version of the normal functions to probe or remove the driver. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/662584/ Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
2025-07-05drm/msm: rearrange symbol selectionDmitry Baryshkov
Move symbol selection to be more fine grained: select DP helpers only if DP driver is also enabled, move KMS and display helpers to the newly introduced DRM_MSM_KMS. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/662589/ Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
2025-07-05drm/msm: bail out late_init_minor() if it is not a GPU deviceDmitry Baryshkov
Both perf and hangrd make sense only for GPU devices. Bail out if we are registering a KMS-only device. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/662583/ Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
2025-07-05drm/msm: make it possible to disable KMS-related code.Dmitry Baryshkov
If the Adreno device is used in a headless mode, there is no need to build all KMS components. Build corresponding parts conditionally, only selecting them if modeset support is actually required. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/662581/ Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
2025-07-05drm/msm: move KMS driver data to msm_kmsDmitry Baryshkov
Data for HDMI, DSI and DP blocks only makes sense for the KMS parts of the driver. Move corresponding data pointers from struct msm_drm_private to struct msm_kms. Suggested-by: Abhinav Kumar <quic_abhinavk@quicinc.com> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/662580/ Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
2025-07-05drm/msm: get rid of msm_drm_private::num_crtcsDmitry Baryshkov
Drop superfluous msm_drm_private::num_crtcs in favour of using drm_mode_config::num_crtc or MAX_CRCS as appropriate. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/662578/ Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
2025-07-05drm/msm/mdp4: get rid of mdp4_crtc.idDmitry Baryshkov
There is no reason to store CRTC id, it's a part of the drm_crtc. Drop this member and use drm_crtc.name for the warning message. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/662576/ Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
2025-07-05drm/msm: move helper calls to msm_kms.cDmitry Baryshkov
Extract two more KMS-related codepieces to msm_kms.c, removing last pieces of KMS code from msm_drv.c. Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/662574/ Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
2025-07-05drm/msm: move wq handling to KMS codeDmitry Baryshkov
The global workqueue is only used for vblanks inside KMS code. Move allocation / flushing / deallcation of it to msm_kms.c Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/662573/ Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
2025-07-05drm/display: hdmi-cec-helper: Fix adapter unregistrationCristian Ciocaltea
Attempting to reload a kernel module of an HDMI driver making use of the new CEC helpers revealed a resource deallocation issue, i.e. the entries in /dev/cec* keep growing. Moreover, after a couple of tries the kernel crashes and the whole system freezes: [ 47.515950] Unable to handle kernel paging request at virtual address 0020072007200778 [...] [ 47.521707] Internal error: Oops: 0000000096000004 [#1] SMP [...] [ 47.537597] Call trace: [ 47.537815] klist_next+0x20/0x1b8 (P) [ 47.538152] device_reorder_to_tail+0x74/0x120 [ 47.538548] device_reorder_to_tail+0x6c/0x120 [ 47.538944] device_pm_move_to_tail+0x78/0xd0 [ 47.539334] deferred_probe_work_func+0x9c/0x110 [ 47.539747] process_one_work+0x328/0x638 [ 47.540108] worker_thread+0x264/0x390 [ 47.540445] kthread+0x20c/0x230 [ 47.540735] ret_from_fork+0x10/0x20 Do a proper cleanup by calling cec_unregister_adapter() instead of cec_delete_adapter() in the managed release action handler. Fixes: 8b1a8f8b2002 ("drm/display: add CEC helpers code") Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20250703-hdmi-cec-helper-unreg-fix-v1-1-7e7b0eb578bb@collabora.com Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
2025-07-05rust: drm: remove unnecessary importsTamir Duberstein
`kernel::str::CStr` is included in the prelude. Signed-off-by: Tamir Duberstein <tamird@gmail.com> Signed-off-by: Danilo Krummrich <dakr@kernel.org> Link: https://lore.kernel.org/r/20250704-cstr-include-drm-v1-1-a279dfc4d753@gmail.com
2025-07-04drm/msm/adreno: Switch to the common UBWC config structKonrad Dybcio
Now that Adreno specifics are out of the way, use the common config (but leave the HBB hardcoding in place until that is wired up on the other side). Acked-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/660985/ Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
2025-07-04soc: qcom: ubwc: Fill in UBWC swizzle cfg for platforms that lack oneKonrad Dybcio
The UBWC 1.0 case is easy - it must be all 3 enabled. UBWC2.0 and 3.x require that level1 is removed, follow suit. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/660983/ Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
2025-07-04soc: qcom: ubwc: Add #defines for UBWC swizzle bitsKonrad Dybcio
Make the values a bit more meaningful. This commit is intentionally cross-subsystem to ease review, as the patchset is intended to be merged together, with a maintainer consensus. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/660981/ Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
2025-07-04soc: qcom: ubwc: Fix SM6125's ubwc_swizzle valueKonrad Dybcio
The value of 7 (a.k.a. GENMASK(2, 0), a.k.a. disabling levels 1-3 of swizzling) is what we want on this platform (and others with a UBWC 1.0 encoder). Fix it to make mesa happy (the hardware doesn't care about the 2 higher bits, as they weren't consumed on this platform). Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/660980/ Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
2025-07-04drm/msm/a6xx: Simplify min_acc_len calculationKonrad Dybcio
It's only necessary for some lower end parts. Also rename it to min_acc_len_64b to denote that if set, the minimum access length is 64 bits, 32b otherwise. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/660977/ Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
2025-07-04drm/msm/a6xx: Resolve the meaning of rgb565_predicatorKonrad Dybcio
It's supposed to be on when the UBWC encoder version is >= 4.0. Drop the per-GPU assignments. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/660975/ Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
2025-07-04drm/msm/a6xx: Replace '2' with BIT(1) in level2_swizzling_dis calcKonrad Dybcio
ubwc_swizzle is a bitmask. Check for a bit to make it more obvious. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/660973/ Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
2025-07-04drm/msm/a6xx: Resolve the meaning of UBWC_MODEKonrad Dybcio
This bit is set iff the UBWC version is 1.0. That notably does not include QCM2290's "no UBWC". This commit is intentionally cross-subsystem to ease review, as the patchset is intended to be merged together, with a maintainer consensus. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/660971/ Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
2025-07-04drm/msm/a6xx: Simplify uavflagprd_inv detectionKonrad Dybcio
Instead of setting it on a gpu-per-gpu basis, converge it to the intended "is A650 family or A7xx". Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/660969/ Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
2025-07-04drm/msm/a6xx: Resolve the meaning of AMSBCKonrad Dybcio
The bit must be set to 1 if the UBWC encoder version is >= 3.0, drop it as a separate field. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/660967/ Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
2025-07-04drm/msm/a6xx: Get a handle to the common UBWC configKonrad Dybcio
Start the great despaghettification by getting a pointer to the common UBWC configuration, which houses e.g. UBWC versions that we need to make decisions. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/660965/ Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
2025-07-04drm/msm: Use the central UBWC config databaseKonrad Dybcio
As discussed a lot in the past, the UBWC config must be coherent across a number of IP blocks (currently display and GPU, but it also may/will concern camera/video as the drivers evolve). So far, we've been trying to keep the values reasonable in each of the two drivers separately, but it really make sense to do so centrally, especially given certain fields (e.g. HBB) may need to be gathered dynamically. To reduce room for error, move to fetching the config from a central source, so that the data programmed into the hardware is consistent across all multimedia blocks that request it. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/660963/ Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
2025-07-04drm/msm: Offset MDSS HBB value by 13Konrad Dybcio
The Adreno part of the driver exposes this value to userspace, and the SMEM data source also presents a x+13 value. Keep things coherent and make the value uniform across them. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/660961/ Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
2025-07-04soc: qcom: Add UBWC config providerKonrad Dybcio
Add a file that will serve as a single source of truth for UBWC configuration data for various multimedia blocks. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/660959/ Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
2025-07-04drm/msm: Update register xmlRob Clark
Sync register xml from mesa commit eb3e0b7164a3 ("freedreno/a6xx: Split descriptors out into their own file"). Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com> Acked-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Patchwork: https://patchwork.freedesktop.org/patch/662470/
2025-07-04drm/msm: Add VM_BIND throttlingRob Clark
A large number of (unsorted or separate) small (<2MB) mappings can cause a lot of, probably unnecessary, prealloc pages. Ie. a single 4k page size mapping will pre-allocate 3 pages (for levels 2-4) for the pagetable. Which can chew up a large amount of unneeded memory. So add a mechanism to put an upper bound on the # of pre-alloc pages. Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com> Tested-by: Antonino Maniscalco <antomani103@gmail.com> Reviewed-by: Antonino Maniscalco <antomani103@gmail.com> Patchwork: https://patchwork.freedesktop.org/patch/661529/
2025-07-04drm/msm: Defer VMA unmap for fb unpinsRob Clark
With the conversion to drm_gpuvm, we lost the lazy VMA cleanup, which means that fb cleanup/unpin when pageflipping to new scanout buffers immediately unmaps the scanout buffer. This is costly (with tlbinv, it can be 4-6ms for a 1080p scanout buffer, and more for higher resolutions)! To avoid this, introduce a vma_ref, which is incremented whenever userspace has a GEM handle or dma-buf fd. When unpinning if the vm is the kms->vm we defer tearing down the VMA until the vma_ref drops to zero. If the buffer is still part of a flip-chain then userspace will be holding some sort of reference to the BO, either via a GEM handle and/or dma-buf fd. So this avoids unmapping the VMA when there is a strong possibility that it will be needed again. Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com> Tested-by: Antonino Maniscalco <antomani103@gmail.com> Reviewed-by: Antonino Maniscalco <antomani103@gmail.com> Patchwork: https://patchwork.freedesktop.org/patch/661538/
2025-07-04drm/msm: Bump UAPI versionRob Clark
Bump version to signal to userspace that VM_BIND is supported. Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com> Tested-by: Antonino Maniscalco <antomani103@gmail.com> Reviewed-by: Antonino Maniscalco <antomani103@gmail.com> Patchwork: https://patchwork.freedesktop.org/patch/661535/
2025-07-04drm/msm: use trylock for debugfsRob Clark
This resolves a potential deadlock vs msm_gem_vm_close(). Otherwise for _NO_SHARE buffers msm_gem_describe() could be trying to acquire the shared vm resv, while already holding priv->obj_lock. But _vm_close() might drop the last reference to a GEM obj while already holding the vm resv, and msm_gem_free_object() needs to grab priv->obj_lock, a locking inversion. OTOH this is only for debugfs and it isn't critical if we undercount by skipping a locked obj. So just use trylock() and move along if we can't get the lock. Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com> Tested-by: Antonino Maniscalco <antomani103@gmail.com> Reviewed-by: Antonino Maniscalco <antomani103@gmail.com> Patchwork: https://patchwork.freedesktop.org/patch/661525/
2025-07-04drm/msm: Add mmu prealloc tracepointRob Clark
So we can monitor how many pages are getting preallocated vs how many get used. Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com> Tested-by: Antonino Maniscalco <antomani103@gmail.com> Reviewed-by: Antonino Maniscalco <antomani103@gmail.com> Patchwork: https://patchwork.freedesktop.org/patch/661521/
2025-07-04drm/msm: Add VMA unmap reasonRob Clark
Make the VM log a bit more useful by providing a reason for the unmap (ie. closing VM vs evict/purge, etc) Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com> Tested-by: Antonino Maniscalco <antomani103@gmail.com> Reviewed-by: Antonino Maniscalco <antomani103@gmail.com> Patchwork: https://patchwork.freedesktop.org/patch/661527/
2025-07-04drm/msm: Add VM logging for VM_BIND updatesRob Clark
When userspace opts in to VM_BIND, the submit no longer holds references keeping the VMA alive. This makes it difficult to distinguish between UMD/KMD/app bugs. So add a debug option for logging the most recent VM updates and capturing these in GPU devcoredumps. The submitqueue id is also captured, a value of zero means the operation did not go via a submitqueue (ie. comes from msm_gem_vm_close() tearing down the remaining mappings when the device file is closed. Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com> Tested-by: Antonino Maniscalco <antomani103@gmail.com> Reviewed-by: Antonino Maniscalco <antomani103@gmail.com> Patchwork: https://patchwork.freedesktop.org/patch/661518/
2025-07-04drm/msm: Add VM_BIND ioctlRob Clark
Add a VM_BIND ioctl for binding/unbinding buffers into a VM. This is only supported if userspace has opted in to MSM_PARAM_EN_VM_BIND. Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com> Tested-by: Antonino Maniscalco <antomani103@gmail.com> Reviewed-by: Antonino Maniscalco <antomani103@gmail.com> Patchwork: https://patchwork.freedesktop.org/patch/661524/
2025-07-04drm/msm: Split out map/unmap opsRob Clark
With async VM_BIND, the actual pgtable updates are deferred. Synchronously, a list of map/unmap ops will be generated, but the actual pgtable changes are deferred. To support that, split out op handlers and change the existing non-VM_BIND paths to use them. Note in particular, the vma itself may already be destroyed/freed by the time an UNMAP op runs (or even a MAP op if there is a later queued UNMAP). For this reason, the op handlers cannot reference the vma pointer. Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com> Tested-by: Antonino Maniscalco <antomani103@gmail.com> Reviewed-by: Antonino Maniscalco <antomani103@gmail.com> Patchwork: https://patchwork.freedesktop.org/patch/661516/
2025-07-04drm/msm: Support pgtable preallocationRob Clark
Introduce a mechanism to count the worst case # of pages required in a VM_BIND op. Note that previously we would have had to somehow account for allocations in unmap, when splitting a block. This behavior was removed in commit 33729a5fc0ca ("iommu/io-pgtable-arm: Remove split on unmap behavior)" Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com> Tested-by: Antonino Maniscalco <antomani103@gmail.com> Reviewed-by: Antonino Maniscalco <antomani103@gmail.com> Patchwork: https://patchwork.freedesktop.org/patch/661515/
2025-07-04drm/msm: Support IO_PGTABLE_QUIRK_NO_WARN_ONRob Clark
With user managed VMs and multiple queues, it is in theory possible to trigger map/unmap errors. These will (in a later patch) mark the VM as unusable. But we want to tell the io-pgtable helpers not to spam the log. In addition, in the unmap path, we don't want to bail early from the unmap, to ensure we don't leave some dangling pages mapped. Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com> Tested-by: Antonino Maniscalco <antomani103@gmail.com> Reviewed-by: Antonino Maniscalco <antomani103@gmail.com> Patchwork: https://patchwork.freedesktop.org/patch/661520/
2025-07-04drm/msm: Add VM_BIND submitqueueRob Clark
This submitqueue type isn't tied to a hw ringbuffer, but instead executes on the CPU for performing async VM_BIND ops. Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com> Tested-by: Antonino Maniscalco <antomani103@gmail.com> Reviewed-by: Antonino Maniscalco <antomani103@gmail.com> Patchwork: https://patchwork.freedesktop.org/patch/661517/
2025-07-04drm/msm: Use DMA_RESV_USAGE_BOOKKEEP/KERNELRob Clark
Any place we wait for a BO to become idle, we should use BOOKKEEP usage, to ensure that it waits for _any_ activity. Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com> Tested-by: Antonino Maniscalco <antomani103@gmail.com> Reviewed-by: Antonino Maniscalco <antomani103@gmail.com> Patchwork: https://patchwork.freedesktop.org/patch/661506/
2025-07-04drm/msm: Extract out syncobj helpersRob Clark
We'll be re-using these for the VM_BIND ioctl. Also, rename a few things in the uapi header to reflect that syncobj use is not specific to the submit ioctl. Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com> Tested-by: Antonino Maniscalco <antomani103@gmail.com> Reviewed-by: Antonino Maniscalco <antomani103@gmail.com> Patchwork: https://patchwork.freedesktop.org/patch/661512/
2025-07-04drm/msm: rd dumping support for sparseRob Clark
As with devcoredump, we need to iterate the VMAs to figure out what to dump. Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com> Tested-by: Antonino Maniscalco <antomani103@gmail.com> Reviewed-by: Antonino Maniscalco <antomani103@gmail.com> Patchwork: https://patchwork.freedesktop.org/patch/661510/
2025-07-04drm/msm: Crashdump support for sparseRob Clark
In this case, we need to iterate the VMAs looking for ones with MSM_VMA_DUMP flag. Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com> Tested-by: Antonino Maniscalco <antomani103@gmail.com> Reviewed-by: Antonino Maniscalco <antomani103@gmail.com> Patchwork: https://patchwork.freedesktop.org/patch/661504/
2025-07-04drm/msm: rd dumping prep for sparse mappingsRob Clark
Similar to the previous commit, add support for dumping partial mappings. Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com> Tested-by: Antonino Maniscalco <antomani103@gmail.com> Reviewed-by: Antonino Maniscalco <antomani103@gmail.com> Patchwork: https://patchwork.freedesktop.org/patch/661514/
2025-07-04drm/msm: Crashdump prep for sparse mappingsRob Clark
In this case, userspace could request dumping partial GEM obj mappings. Also drop use of should_dump() helper, which really only makes sense in the old submit->bos[] table world. Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com> Tested-by: Antonino Maniscalco <antomani103@gmail.com> Reviewed-by: Antonino Maniscalco <antomani103@gmail.com> Patchwork: https://patchwork.freedesktop.org/patch/661496/
2025-07-04drm/msm: Add _NO_SHARE flagRob Clark
Buffers that are not shared between contexts can share a single resv object. This way drm_gpuvm will not track them as external objects, and submit-time validating overhead will be O(1) for all N non-shared BOs, instead of O(n). Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com> Tested-by: Antonino Maniscalco <antomani103@gmail.com> Reviewed-by: Antonino Maniscalco <antomani103@gmail.com> Patchwork: https://patchwork.freedesktop.org/patch/661497/
2025-07-04drm/msm: Mark VM as unusable on GPU hangsRob Clark
If userspace has opted-in to VM_BIND, then GPU hangs and VM_BIND errors will mark the VM as unusable. Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com> Tested-by: Antonino Maniscalco <antomani103@gmail.com> Reviewed-by: Antonino Maniscalco <antomani103@gmail.com> Patchwork: https://patchwork.freedesktop.org/patch/661499/
2025-07-04drm/msm: Add opt-in for VM_BINDRob Clark
Add a SET_PARAM for userspace to request to manage to the VM itself, instead of getting a kernel managed VM. In order to transition to a userspace managed VM, this param must be set before any mappings are created. Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com> Tested-by: Antonino Maniscalco <antomani103@gmail.com> Reviewed-by: Antonino Maniscalco <antomani103@gmail.com> Patchwork: https://patchwork.freedesktop.org/patch/661494/
2025-07-04drm/msm: Lazily create context VMRob Clark
In the next commit, a way for userspace to opt-in to userspace managed VM is added. For this to work, we need to defer creation of the VM until it is needed. Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com> Tested-by: Antonino Maniscalco <antomani103@gmail.com> Reviewed-by: Antonino Maniscalco <antomani103@gmail.com> Patchwork: https://patchwork.freedesktop.org/patch/661490/
2025-07-04drm/msm: Drop queued submits on lastclose()Rob Clark
If we haven't written the submit into the ringbuffer yet, then drop it. The submit still retires through the normal path, to preserve fence signalling order, but we can skip the IB's to userspace cmdstream. Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com> Tested-by: Antonino Maniscalco <antomani103@gmail.com> Reviewed-by: Antonino Maniscalco <antomani103@gmail.com> Patchwork: https://patchwork.freedesktop.org/patch/661489/
generated by cgit (git 2.34.1) at 2025-09-11 04:51:47 +0000