diff options
Diffstat (limited to 'drivers/gpu/drm/panfrost')
| -rw-r--r-- | drivers/gpu/drm/panfrost/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/panfrost/panfrost_devfreq.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/panfrost/panfrost_gem.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/panfrost/panfrost_gem.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/panfrost/panfrost_mmu.c | 8 |
5 files changed, 15 insertions, 1 deletions
diff --git a/drivers/gpu/drm/panfrost/Kconfig b/drivers/gpu/drm/panfrost/Kconfig index 591611dc4e34..86cdc0ce79e6 100644 --- a/drivers/gpu/drm/panfrost/Kconfig +++ b/drivers/gpu/drm/panfrost/Kconfig @@ -9,6 +9,8 @@ config DRM_PANFROST select IOMMU_SUPPORT select IOMMU_IO_PGTABLE_LPAE select DRM_GEM_SHMEM_HELPER + select PM_DEVFREQ + select DEVFREQ_GOV_SIMPLE_ONDEMAND help DRM driver for ARM Mali Midgard (T6xx, T7xx, T8xx) and Bifrost (G3x, G5x, G7x) GPUs. diff --git a/drivers/gpu/drm/panfrost/panfrost_devfreq.c b/drivers/gpu/drm/panfrost/panfrost_devfreq.c index 238bd1d89d43..db798532b0b6 100644 --- a/drivers/gpu/drm/panfrost/panfrost_devfreq.c +++ b/drivers/gpu/drm/panfrost/panfrost_devfreq.c @@ -142,6 +142,8 @@ int panfrost_devfreq_init(struct panfrost_device *pfdev) ret = dev_pm_opp_of_add_table(&pfdev->pdev->dev); if (ret == -ENODEV) /* Optional, continue without devfreq */ return 0; + else if (ret) + return ret; panfrost_devfreq_reset(pfdev); diff --git a/drivers/gpu/drm/panfrost/panfrost_gem.c b/drivers/gpu/drm/panfrost/panfrost_gem.c index a5528a360ef4..97d64ceedbb4 100644 --- a/drivers/gpu/drm/panfrost/panfrost_gem.c +++ b/drivers/gpu/drm/panfrost/panfrost_gem.c @@ -19,7 +19,8 @@ static void panfrost_gem_free_object(struct drm_gem_object *obj) struct panfrost_gem_object *bo = to_panfrost_bo(obj); struct panfrost_device *pfdev = obj->dev->dev_private; - panfrost_mmu_unmap(bo); + if (bo->is_mapped) + panfrost_mmu_unmap(bo); spin_lock(&pfdev->mm_lock); drm_mm_remove_node(&bo->node); diff --git a/drivers/gpu/drm/panfrost/panfrost_gem.h b/drivers/gpu/drm/panfrost/panfrost_gem.h index 045000eb5fcf..6dbcaba020fc 100644 --- a/drivers/gpu/drm/panfrost/panfrost_gem.h +++ b/drivers/gpu/drm/panfrost/panfrost_gem.h @@ -11,6 +11,7 @@ struct panfrost_gem_object { struct drm_gem_shmem_object base; struct drm_mm_node node; + bool is_mapped; }; static inline diff --git a/drivers/gpu/drm/panfrost/panfrost_mmu.c b/drivers/gpu/drm/panfrost/panfrost_mmu.c index 762b1bd2a8c2..92ac995dd9c6 100644 --- a/drivers/gpu/drm/panfrost/panfrost_mmu.c +++ b/drivers/gpu/drm/panfrost/panfrost_mmu.c @@ -156,6 +156,9 @@ int panfrost_mmu_map(struct panfrost_gem_object *bo) struct sg_table *sgt; int ret; + if (WARN_ON(bo->is_mapped)) + return 0; + sgt = drm_gem_shmem_get_pages_sgt(obj); if (WARN_ON(IS_ERR(sgt))) return PTR_ERR(sgt); @@ -189,6 +192,7 @@ int panfrost_mmu_map(struct panfrost_gem_object *bo) pm_runtime_mark_last_busy(pfdev->dev); pm_runtime_put_autosuspend(pfdev->dev); + bo->is_mapped = true; return 0; } @@ -203,6 +207,9 @@ void panfrost_mmu_unmap(struct panfrost_gem_object *bo) size_t unmapped_len = 0; int ret; + if (WARN_ON(!bo->is_mapped)) + return; + dev_dbg(pfdev->dev, "unmap: iova=%llx, len=%zx", iova, len); ret = pm_runtime_get_sync(pfdev->dev); @@ -230,6 +237,7 @@ void panfrost_mmu_unmap(struct panfrost_gem_object *bo) pm_runtime_mark_last_busy(pfdev->dev); pm_runtime_put_autosuspend(pfdev->dev); + bo->is_mapped = false; } static void mmu_tlb_inv_context_s1(void *cookie) |