kernel/linux.git/drivers/gpu/drm/msm/msm_gpu.h, branch linux-6.9.y

drm/sched: Reverse run-queue priority enumeration

2023-11-25T04:03:53+00:00

Reverse run-queue priority enumeration such that the higest priority is now 0, and for each consecutive integer the prioirty diminishes. Run-queues correspond to priorities. To an external observer a scheduler created with a single run-queue, and another created with DRM_SCHED_PRIORITY_COUNT number of run-queues, should always schedule sched->sched_rq[0] with the same "priority", as that index run-queue exists in both schedulers, i.e. a scheduler with one run-queue or many. This patch makes it so. In other words, the "priority" of sched->sched_rq[n], n >= 0, is the same for any scheduler created with any allowable number of run-queues (priorities), 0 to DRM_SCHED_PRIORITY_COUNT. Cc: Rob Clark Cc: Abhinav Kumar Cc: Dmitry Baryshkov Cc: Danilo Krummrich Cc: Alex Deucher Cc: Christian König Cc: linux-arm-msm@vger.kernel.org Cc: freedreno@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org Signed-off-by: Luben Tuikov Reviewed-by: Christian König Link: https://patchwork.freedesktop.org/patch/msgid/20231124052752.6915-6-ltuikov89@gmail.com

drm/sched: Rename priority MIN to LOW

2023-11-25T04:03:53+00:00

Rename DRM_SCHED_PRIORITY_MIN to DRM_SCHED_PRIORITY_LOW. This mirrors DRM_SCHED_PRIORITY_HIGH, for a list of DRM scheduler priorities in ascending order, DRM_SCHED_PRIORITY_LOW, DRM_SCHED_PRIORITY_NORMAL, DRM_SCHED_PRIORITY_HIGH, DRM_SCHED_PRIORITY_KERNEL. Cc: Rob Clark Cc: Abhinav Kumar Cc: Dmitry Baryshkov Cc: Danilo Krummrich Cc: Alex Deucher Cc: Christian König Cc: linux-arm-msm@vger.kernel.org Cc: freedreno@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org Signed-off-by: Luben Tuikov Reviewed-by: Christian König Link: https://patchwork.freedesktop.org/patch/msgid/20231124052752.6915-5-ltuikov89@gmail.com

drm/msm: Disallow relocs on a6xx+

2023-08-07T21:51:21+00:00

Mesa stopped using these pretty early in a6xx bringup[1]. Take advantage of this to disallow some legacy UABI. [1] https://gitlab.freedesktop.org/mesa/mesa/-/commit/7ef722861b691ce99be3827ed05f8c0ddf2cd66e Signed-off-by: Rob Clark Acked-by: Daniel Vetter Patchwork: https://patchwork.freedesktop.org/patch/551175/

drm/msm/gpu: Move BO allocation out of hw_init

2023-03-25T23:31:45+00:00

These allocations are only done the first (successful) time through hw_init() so they won't actually happen in the job_run() path. But lockdep doesn't know this. So dis-entangle them from the hw_init() path. Signed-off-by: Rob Clark Patchwork: https://patchwork.freedesktop.org/patch/527852/ Link: https://lore.kernel.org/r/20230320144356.803762-14-robdclark@gmail.com

drm/msm: Switch idr_lock to spinlock

2023-03-25T23:31:44+00:00

Needed to idr_preload() which returns with preemption disabled. Signed-off-by: Rob Clark Patchwork: https://patchwork.freedesktop.org/patch/527846/ Link: https://lore.kernel.org/r/20230320144356.803762-11-robdclark@gmail.com

drm/msm/a6xx: Remove cx gdsc polling using 'reset'

2023-03-20T17:53:47+00:00

Remove the unused 'reset' interface which was supposed to help to ensure that cx gdsc has collapsed during gpu recovery. This is was not enabled so far due to missing gpucc driver support. Similar functionality using genpd framework will be implemented in the upcoming patch. This effectively reverts commit 1f6cca404918 ("drm/msm/a6xx: Ensure CX collapse during gpu recovery"). Signed-off-by: Akhil P Oommen Reviewed-by: Ulf Hansson Reviewed-by: Philipp Zabel Patchwork: https://patchwork.freedesktop.org/patch/516470/ Link: https://lore.kernel.org/r/20230102161757.v5.4.I96e0bf9eaf96dd866111c1eec8a4c9b70fd7cbcb@changeid Signed-off-by: Rob Clark

Merge tag 'drm-msm-next-2023-01-30' of https://gitlab.freedesktop.org/drm/msm into drm-next

2023-02-02T18:45:17+00:00

msm-next for v6.3 There is one devfreq patch, maintainer acked to land via msm-next to avoid a build break on platforms that do not support PM_DEVFREQ. And otherwise the usual assortment: GPU: - Add MSM_SUBMIT_BO_NO_IMPLICIT - a2xx: Support to load legacy firmware - a6xx: GPU devcore dump updates for a650/a660 - GPU devfreq tuning and fixes DPU, DSI, MDSS: - Support for SM8350, SM8450 SM8550 and SC8280XP platform Core: - Added bindings for SM8150 (driver support already present) DPU: - Partial support for DSC on SM8150 and SM8250 - Fixed color transformation matrix being lost on suspend/resume - Include DSC blocks into register snapshot - Misc HW catalog fixes DP: - Support for DP on SDM845 and SC8280XP platforms - HPD fixes - Support for limiting DP link rate via DT property, this enables - Support for HBR3 rates. DSI: - Validate display modes according to the DSI OPP table - DSI PHY support for the SM6375 platform - Fixed byte intf clock selection for 14nm PHYs - Fix the case of empty OPP tables (fixing db410c) - DT schema rework and fixes HDMI: - Turn 8960 HDMI PHY into clock provider, - Make 8960 HDMI PHY use PXO clock from DT MDP5: - Schema conversion to YAML Signed-off-by: Dave Airlie From: Rob Clark Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGv6zQ-zsgS+NG+WuV=tk51q9vA2QdKqYhNgiXQddAdZjA@mail.gmail.com

Merge tag 'drm-msm-fixes-2023-01-16' of https://gitlab.freedesktop.org/drm/msm into drm-fixes

2023-01-19T21:49:01+00:00

msm-fixes for v6.3-rc5 Two GPU fixes which were meant to be part of the previous pull request, but I'd forgotten to fetch from gitlab after the MR was merged so that git tag was applied to the wrong commit. - kexec shutdown fix - fix potential double free Signed-off-by: Dave Airlie From: Rob Clark Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGskguoVsz2wqAK2k+f32LwcVY5JC6+e2RwLqZswz3RY2Q@mail.gmail.com

drm/msm/gpu: Bypass PM QoS constraint for idle clamp

2023-01-16T18:40:24+00:00

Change idle freq clamping back to the direct method, bypassing PM QoS requests. The problem with using PM QoS requests is they call (indirectly) the governors ->get_target_freq() which goes thru a get_dev_status() cycle. The problem comes when the GPU becomes active again and we remove the idle-clamp request, we go through another get_dev_status() cycle for the period that the GPU has been idle, which triggers the governor to lower the target freq excessively. This partially reverts commit 7c0ffcd40b16 ("drm/msm/gpu: Respect PM QoS constraints"), but preserves the use of boost QoS request, so that it will continue to play nicely with other QoS requests such as a cooling device. This also mostly undoes commit 78f815c1cf8f ("drm/msm: return the average load over the polling period") Signed-off-by: Rob Clark Patchwork: https://patchwork.freedesktop.org/patch/517785/ Link: https://lore.kernel.org/r/20230110231447.1939101-3-robdclark@gmail.com Reviewed-by: Chia-I Wu

drm/msm/gpu: Add devfreq tuning debugfs

2023-01-16T18:40:18+00:00

Make the handful of tuning knobs available visible via debugfs. v2: select DEVFREQ_GOV_SIMPLE_ONDEMAND because for some reason struct devfreq_simple_ondemand_data depends on this Signed-off-by: Rob Clark Patchwork: https://patchwork.freedesktop.org/patch/517784/ Link: https://lore.kernel.org/r/20230110231447.1939101-2-robdclark@gmail.com Reviewed-by: Chia-I Wu