diff options
| author | Rob Clark <robdclark@chromium.org> | 2023-08-03 11:32:45 -0700 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2023-08-07 14:51:21 -0700 |
| commit | 42854f8d2bff3f3a36f8f1c985c69618a13ed9ec (patch) | |
| tree | ca8c4349e83bcd7fed960dcbad2e5023626ec682 /drivers/gpu/drm/msm | |
| parent | 3136a0f83519076edfbc14be65f286785434189a (diff) | |
drm/msm: Disallow relocs on a6xx+
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 <robdclark@chromium.org>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Patchwork: https://patchwork.freedesktop.org/patch/551175/
Diffstat (limited to 'drivers/gpu/drm/msm')
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/adreno_gpu.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gem_submit.c | 10 | ||||
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gpu.h | 9 |
3 files changed, 21 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c index ba35c2a87021..695cce82d914 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c @@ -1078,6 +1078,8 @@ int adreno_gpu_init(struct drm_device *drm, struct platform_device *pdev, adreno_gpu->info = config->info; adreno_gpu->chip_id = config->chip_id; + gpu->allow_relocs = config->info->family < ADRENO_6XX_GEN1; + /* Only handle the core clock when GMU is not in use (or is absent). */ if (adreno_has_gmu_wrapper(adreno_gpu) || adreno_gpu->info->family < ADRENO_6XX_GEN1) { diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c index 63c96416e183..3b908f9f5493 100644 --- a/drivers/gpu/drm/msm/msm_gem_submit.c +++ b/drivers/gpu/drm/msm/msm_gem_submit.c @@ -882,6 +882,16 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data, if (submit->valid) continue; + if (!gpu->allow_relocs) { + if (submit->cmd[i].nr_relocs) { + DRM_ERROR("relocs not allowed\n"); + ret = -EINVAL; + goto out; + } + + continue; + } + ret = submit_reloc(submit, msm_obj, submit->cmd[i].offset * 4, submit->cmd[i].nr_relocs, submit->cmd[i].relocs); if (ret) diff --git a/drivers/gpu/drm/msm/msm_gpu.h b/drivers/gpu/drm/msm/msm_gpu.h index 7a4fa1b8655b..4252e3839fbc 100644 --- a/drivers/gpu/drm/msm/msm_gpu.h +++ b/drivers/gpu/drm/msm/msm_gpu.h @@ -285,6 +285,15 @@ struct msm_gpu { /* True if the hardware supports expanded apriv (a650 and newer) */ bool hw_apriv; + /** + * @allow_relocs: allow relocs in SUBMIT ioctl + * + * Mesa won't use relocs for driver version 1.4.0 and later. This + * switch-over happened early enough in mesa a6xx bringup that we + * can disallow relocs for a6xx and newer. + */ + bool allow_relocs; + struct thermal_cooling_device *cooling; }; |