diff options
Diffstat (limited to 'drivers/gpu/drm/msm/msm_gem.c')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gem.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index ea5bb0e1632c..81fe6d6740ce 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -470,14 +470,16 @@ fail: return ret; } -void *msm_gem_get_vaddr(struct drm_gem_object *obj) +static void *get_vaddr(struct drm_gem_object *obj, unsigned madv) { struct msm_gem_object *msm_obj = to_msm_bo(obj); int ret = 0; mutex_lock(&msm_obj->lock); - if (WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) { + if (WARN_ON(msm_obj->madv > madv)) { + dev_err(obj->dev->dev, "Invalid madv state: %u vs %u\n", + msm_obj->madv, madv); mutex_unlock(&msm_obj->lock); return ERR_PTR(-EBUSY); } @@ -513,6 +515,22 @@ fail: return ERR_PTR(ret); } +void *msm_gem_get_vaddr(struct drm_gem_object *obj) +{ + return get_vaddr(obj, MSM_MADV_WILLNEED); +} + +/* + * Don't use this! It is for the very special case of dumping + * submits from GPU hangs or faults, were the bo may already + * be MSM_MADV_DONTNEED, but we know the buffer is still on the + * active list. + */ +void *msm_gem_get_vaddr_active(struct drm_gem_object *obj) +{ + return get_vaddr(obj, __MSM_MADV_PURGED); +} + void msm_gem_put_vaddr(struct drm_gem_object *obj) { struct msm_gem_object *msm_obj = to_msm_bo(obj); |