Am 08.01.23 um 22:04 schrieb Dmitry Osipenko:
Ease debugging of a multi-GPU system by using drm_WARN_*() and drm_dbg_kms() helpers that print out DRM device name corresponding to shmem GEM. Suggested-by: Thomas Zimmermann <tzimmerm...@suse.de> Signed-off-by: Dmitry Osipenko <dmitry.osipe...@collabora.com>
Reviewed-by: Thomas Zimmermann <tzimmerm...@suse.de>
--- drivers/gpu/drm/drm_gem_shmem_helper.c | 38 +++++++++++++++----------- 1 file changed, 22 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c index f21f47737817..5006f7da7f2d 100644 --- a/drivers/gpu/drm/drm_gem_shmem_helper.c +++ b/drivers/gpu/drm/drm_gem_shmem_helper.c @@ -141,7 +141,7 @@ void drm_gem_shmem_free(struct drm_gem_shmem_object *shmem) { struct drm_gem_object *obj = &shmem->base;- WARN_ON(shmem->vmap_use_count);+ drm_WARN_ON(obj->dev, shmem->vmap_use_count);if (obj->import_attach) {drm_prime_gem_destroy(obj, shmem->sgt); @@ -156,7 +156,7 @@ void drm_gem_shmem_free(struct drm_gem_shmem_object *shmem) drm_gem_shmem_put_pages(shmem); }- WARN_ON(shmem->pages_use_count);+ drm_WARN_ON(obj->dev, shmem->pages_use_count);drm_gem_object_release(obj);mutex_destroy(&shmem->pages_lock); @@ -175,7 +175,8 @@ static int drm_gem_shmem_get_pages_locked(struct drm_gem_shmem_object *shmem)pages = drm_gem_get_pages(obj);if (IS_ERR(pages)) { - DRM_DEBUG_KMS("Failed to get pages (%ld)\n", PTR_ERR(pages)); + drm_dbg_kms(obj->dev, "Failed to get pages (%ld)\n", + PTR_ERR(pages)); shmem->pages_use_count = 0; return PTR_ERR(pages); } @@ -207,9 +208,10 @@ static int drm_gem_shmem_get_pages_locked(struct drm_gem_shmem_object *shmem) */ int drm_gem_shmem_get_pages(struct drm_gem_shmem_object *shmem) { + struct drm_gem_object *obj = &shmem->base; int ret;- WARN_ON(shmem->base.import_attach);+ drm_WARN_ON(obj->dev, obj->import_attach);ret = mutex_lock_interruptible(&shmem->pages_lock);if (ret) @@ -225,7 +227,7 @@ static void drm_gem_shmem_put_pages_locked(struct drm_gem_shmem_object *shmem) { struct drm_gem_object *obj = &shmem->base;- if (WARN_ON_ONCE(!shmem->pages_use_count))+ if (drm_WARN_ON_ONCE(obj->dev, !shmem->pages_use_count)) return;if (--shmem->pages_use_count > 0)@@ -268,7 +270,9 @@ EXPORT_SYMBOL(drm_gem_shmem_put_pages); */ int drm_gem_shmem_pin(struct drm_gem_shmem_object *shmem) { - WARN_ON(shmem->base.import_attach); + struct drm_gem_object *obj = &shmem->base; + + drm_WARN_ON(obj->dev, obj->import_attach);return drm_gem_shmem_get_pages(shmem);} @@ -283,7 +287,9 @@ EXPORT_SYMBOL(drm_gem_shmem_pin); */ void drm_gem_shmem_unpin(struct drm_gem_shmem_object *shmem) { - WARN_ON(shmem->base.import_attach); + struct drm_gem_object *obj = &shmem->base; + + drm_WARN_ON(obj->dev, obj->import_attach);drm_gem_shmem_put_pages(shmem);} @@ -303,7 +309,7 @@ static int drm_gem_shmem_vmap_locked(struct drm_gem_shmem_object *shmem, if (obj->import_attach) { ret = dma_buf_vmap(obj->import_attach->dmabuf, map); if (!ret) { - if (WARN_ON(map->is_iomem)) { + if (drm_WARN_ON(obj->dev, map->is_iomem)) { dma_buf_vunmap(obj->import_attach->dmabuf, map); ret = -EIO; goto err_put_pages; @@ -328,7 +334,7 @@ static int drm_gem_shmem_vmap_locked(struct drm_gem_shmem_object *shmem, }if (ret) {- DRM_DEBUG_KMS("Failed to vmap pages, error %d\n", ret); + drm_dbg_kms(obj->dev, "Failed to vmap pages, error %d\n", ret); goto err_put_pages; }@@ -378,7 +384,7 @@ static void drm_gem_shmem_vunmap_locked(struct drm_gem_shmem_object *shmem,{ struct drm_gem_object *obj = &shmem->base;- if (WARN_ON_ONCE(!shmem->vmap_use_count))+ if (drm_WARN_ON_ONCE(obj->dev, !shmem->vmap_use_count)) return;if (--shmem->vmap_use_count > 0)@@ -463,7 +469,7 @@ void drm_gem_shmem_purge_locked(struct drm_gem_shmem_object *shmem) struct drm_gem_object *obj = &shmem->base; struct drm_device *dev = obj->dev;- WARN_ON(!drm_gem_shmem_is_purgeable(shmem));+ drm_WARN_ON(obj->dev, !drm_gem_shmem_is_purgeable(shmem));dma_unmap_sgtable(dev->dev, shmem->sgt, DMA_BIDIRECTIONAL, 0);sg_free_table(shmem->sgt); @@ -555,7 +561,7 @@ static vm_fault_t drm_gem_shmem_fault(struct vm_fault *vmf) mutex_lock(&shmem->pages_lock);if (page_offset >= num_pages ||- WARN_ON_ONCE(!shmem->pages) || + drm_WARN_ON_ONCE(obj->dev, !shmem->pages) || shmem->madv < 0) { ret = VM_FAULT_SIGBUS; } else { @@ -574,7 +580,7 @@ static void drm_gem_shmem_vm_open(struct vm_area_struct *vma) struct drm_gem_object *obj = vma->vm_private_data; struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj);- WARN_ON(shmem->base.import_attach);+ drm_WARN_ON(obj->dev, obj->import_attach);mutex_lock(&shmem->pages_lock); @@ -583,7 +589,7 @@ static void drm_gem_shmem_vm_open(struct vm_area_struct *vma)* mmap'd, vm_open() just grabs an additional reference for the new * mm the vma is getting copied into (ie. on fork()). */ - if (!WARN_ON_ONCE(!shmem->pages_use_count)) + if (!drm_WARN_ON_ONCE(obj->dev, !shmem->pages_use_count)) shmem->pages_use_count++;mutex_unlock(&shmem->pages_lock);@@ -677,7 +683,7 @@ struct sg_table *drm_gem_shmem_get_sg_table(struct drm_gem_shmem_object *shmem) { struct drm_gem_object *obj = &shmem->base;- WARN_ON(shmem->base.import_attach);+ drm_WARN_ON(obj->dev, obj->import_attach);return drm_prime_pages_to_sg(obj->dev, shmem->pages, obj->size >> PAGE_SHIFT);} @@ -708,7 +714,7 @@ struct sg_table *drm_gem_shmem_get_pages_sgt(struct drm_gem_shmem_object *shmem) if (shmem->sgt) return shmem->sgt;- WARN_ON(obj->import_attach);+ drm_WARN_ON(obj->dev, obj->import_attach);ret = drm_gem_shmem_get_pages(shmem);if (ret)
-- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Maxfeldstr. 5, 90409 Nürnberg, Germany (HRB 36809, AG Nürnberg) Geschäftsführer: Ivo Totev
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