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drm/msm: ratelimit GEM related WARN_ON()s

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If you mess something up, you don't really need to see the same warn on
splat 4000 times pumped out a slow debug UART port..

Signed-off-by: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20210405174532.1441497-2-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
This commit is contained in:
Rob Clark 2021-04-05 10:45:24 -07:00
parent a670ff578f
commit 90643a24a7
2 changed files with 45 additions and 40 deletions
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66
drivers/gpu/drm/msm/msm_gem.c
View file

@ -96,7 +96,7 @@ static struct page **get_pages(struct drm_gem_object *obj)
{
struct msm_gem_object *msm_obj = to_msm_bo(obj);
WARN_ON(!msm_gem_is_locked(obj));
GEM_WARN_ON(!msm_gem_is_locked(obj));
if (!msm_obj->pages) {
struct drm_device *dev = obj->dev;
@ -180,7 +180,7 @@ struct page **msm_gem_get_pages(struct drm_gem_object *obj)
msm_gem_lock(obj);
if (WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) {
if (GEM_WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) {
msm_gem_unlock(obj);
return ERR_PTR(-EBUSY);
}
@ -256,7 +256,7 @@ static vm_fault_t msm_gem_fault(struct vm_fault *vmf)
goto out;
}
if (WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) {
if (GEM_WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) {
msm_gem_unlock(obj);
return VM_FAULT_SIGBUS;
}
@ -289,7 +289,7 @@ static uint64_t mmap_offset(struct drm_gem_object *obj)
struct drm_device *dev = obj->dev;
int ret;
WARN_ON(!msm_gem_is_locked(obj));
GEM_WARN_ON(!msm_gem_is_locked(obj));
/* Make it mmapable */
ret = drm_gem_create_mmap_offset(obj);
@ -318,7 +318,7 @@ static struct msm_gem_vma *add_vma(struct drm_gem_object *obj,
struct msm_gem_object *msm_obj = to_msm_bo(obj);
struct msm_gem_vma *vma;
WARN_ON(!msm_gem_is_locked(obj));
GEM_WARN_ON(!msm_gem_is_locked(obj));
vma = kzalloc(sizeof(*vma), GFP_KERNEL);
if (!vma)
@ -337,7 +337,7 @@ static struct msm_gem_vma *lookup_vma(struct drm_gem_object *obj,
struct msm_gem_object *msm_obj = to_msm_bo(obj);
struct msm_gem_vma *vma;
WARN_ON(!msm_gem_is_locked(obj));
GEM_WARN_ON(!msm_gem_is_locked(obj));
list_for_each_entry(vma, &msm_obj->vmas, list) {
if (vma->aspace == aspace)
@ -363,7 +363,7 @@ put_iova_spaces(struct drm_gem_object *obj)
struct msm_gem_object *msm_obj = to_msm_bo(obj);
struct msm_gem_vma *vma;
WARN_ON(!msm_gem_is_locked(obj));
GEM_WARN_ON(!msm_gem_is_locked(obj));
list_for_each_entry(vma, &msm_obj->vmas, list) {
if (vma->aspace) {
@ -380,7 +380,7 @@ put_iova_vmas(struct drm_gem_object *obj)
struct msm_gem_object *msm_obj = to_msm_bo(obj);
struct msm_gem_vma *vma, *tmp;
WARN_ON(!msm_gem_is_locked(obj));
GEM_WARN_ON(!msm_gem_is_locked(obj));
list_for_each_entry_safe(vma, tmp, &msm_obj->vmas, list) {
del_vma(vma);
@ -394,7 +394,7 @@ static int get_iova_locked(struct drm_gem_object *obj,
struct msm_gem_vma *vma;
int ret = 0;
WARN_ON(!msm_gem_is_locked(obj));
GEM_WARN_ON(!msm_gem_is_locked(obj));
vma = lookup_vma(obj, aspace);
@ -429,13 +429,13 @@ static int msm_gem_pin_iova(struct drm_gem_object *obj,
if (msm_obj->flags & MSM_BO_MAP_PRIV)
prot |= IOMMU_PRIV;
WARN_ON(!msm_gem_is_locked(obj));
GEM_WARN_ON(!msm_gem_is_locked(obj));
if (WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED))
if (GEM_WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED))
return -EBUSY;
vma = lookup_vma(obj, aspace);
if (WARN_ON(!vma))
if (GEM_WARN_ON(!vma))
return -EINVAL;
pages = get_pages(obj);
@ -453,7 +453,7 @@ static int get_and_pin_iova_range_locked(struct drm_gem_object *obj,
u64 local;
int ret;
WARN_ON(!msm_gem_is_locked(obj));
GEM_WARN_ON(!msm_gem_is_locked(obj));
ret = get_iova_locked(obj, aspace, &local,
range_start, range_end);
@ -524,7 +524,7 @@ uint64_t msm_gem_iova(struct drm_gem_object *obj,
msm_gem_lock(obj);
vma = lookup_vma(obj, aspace);
msm_gem_unlock(obj);
WARN_ON(!vma);
GEM_WARN_ON(!vma);
return vma ? vma->iova : 0;
}
@ -537,11 +537,11 @@ void msm_gem_unpin_iova_locked(struct drm_gem_object *obj,
{
struct msm_gem_vma *vma;
WARN_ON(!msm_gem_is_locked(obj));
GEM_WARN_ON(!msm_gem_is_locked(obj));
vma = lookup_vma(obj, aspace);
if (!WARN_ON(!vma))
if (!GEM_WARN_ON(!vma))
msm_gem_unmap_vma(aspace, vma);
}
@ -593,12 +593,12 @@ static void *get_vaddr(struct drm_gem_object *obj, unsigned madv)
struct msm_gem_object *msm_obj = to_msm_bo(obj);
int ret = 0;
WARN_ON(!msm_gem_is_locked(obj));
GEM_WARN_ON(!msm_gem_is_locked(obj));
if (obj->import_attach)
return ERR_PTR(-ENODEV);
if (WARN_ON(msm_obj->madv > madv)) {
if (GEM_WARN_ON(msm_obj->madv > madv)) {
DRM_DEV_ERROR(obj->dev->dev, "Invalid madv state: %u vs %u\n",
msm_obj->madv, madv);
return ERR_PTR(-EBUSY);
@ -664,8 +664,8 @@ void msm_gem_put_vaddr_locked(struct drm_gem_object *obj)
{
struct msm_gem_object *msm_obj = to_msm_bo(obj);
WARN_ON(!msm_gem_is_locked(obj));
WARN_ON(msm_obj->vmap_count < 1);
GEM_WARN_ON(!msm_gem_is_locked(obj));
GEM_WARN_ON(msm_obj->vmap_count < 1);
msm_obj->vmap_count--;
}
@ -707,8 +707,8 @@ void msm_gem_purge(struct drm_gem_object *obj)
struct drm_device *dev = obj->dev;
struct msm_gem_object *msm_obj = to_msm_bo(obj);
WARN_ON(!is_purgeable(msm_obj));
WARN_ON(obj->import_attach);
GEM_WARN_ON(!is_purgeable(msm_obj));
GEM_WARN_ON(obj->import_attach);
put_iova_spaces(obj);
@ -739,9 +739,9 @@ void msm_gem_vunmap(struct drm_gem_object *obj)
{
struct msm_gem_object *msm_obj = to_msm_bo(obj);
WARN_ON(!msm_gem_is_locked(obj));
GEM_WARN_ON(!msm_gem_is_locked(obj));
if (!msm_obj->vaddr || WARN_ON(!is_vunmapable(msm_obj)))
if (!msm_obj->vaddr || GEM_WARN_ON(!is_vunmapable(msm_obj)))
return;
vunmap(msm_obj->vaddr);
@ -789,9 +789,9 @@ void msm_gem_active_get(struct drm_gem_object *obj, struct msm_gpu *gpu)
struct msm_drm_private *priv = obj->dev->dev_private;
might_sleep();
WARN_ON(!msm_gem_is_locked(obj));
WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED);
WARN_ON(msm_obj->dontneed);
GEM_WARN_ON(!msm_gem_is_locked(obj));
GEM_WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED);
GEM_WARN_ON(msm_obj->dontneed);
if (msm_obj->active_count++ == 0) {
mutex_lock(&priv->mm_lock);
@ -806,7 +806,7 @@ void msm_gem_active_put(struct drm_gem_object *obj)
struct msm_gem_object *msm_obj = to_msm_bo(obj);
might_sleep();
WARN_ON(!msm_gem_is_locked(obj));
GEM_WARN_ON(!msm_gem_is_locked(obj));
if (--msm_obj->active_count == 0) {
update_inactive(msm_obj);
@ -818,7 +818,7 @@ static void update_inactive(struct msm_gem_object *msm_obj)
struct msm_drm_private *priv = msm_obj->base.dev->dev_private;
mutex_lock(&priv->mm_lock);
WARN_ON(msm_obj->active_count != 0);
GEM_WARN_ON(msm_obj->active_count != 0);
if (msm_obj->dontneed)
mark_unpurgeable(msm_obj);
@ -830,7 +830,7 @@ static void update_inactive(struct msm_gem_object *msm_obj)
list_add_tail(&msm_obj->mm_list, &priv->inactive_dontneed);
mark_purgeable(msm_obj);
} else {
WARN_ON(msm_obj->madv != __MSM_MADV_PURGED);
GEM_WARN_ON(msm_obj->madv != __MSM_MADV_PURGED);
list_add_tail(&msm_obj->mm_list, &priv->inactive_purged);
}
@ -1010,12 +1010,12 @@ void msm_gem_free_object(struct drm_gem_object *obj)
msm_gem_lock(obj);
/* object should not be on active list: */
WARN_ON(is_active(msm_obj));
GEM_WARN_ON(is_active(msm_obj));
put_iova_spaces(obj);
if (obj->import_attach) {
WARN_ON(msm_obj->vaddr);
GEM_WARN_ON(msm_obj->vaddr);
/* Don't drop the pages for imported dmabuf, as they are not
* ours, just free the array we allocated:
@ -1131,7 +1131,7 @@ static struct drm_gem_object *_msm_gem_new(struct drm_device *dev,
else if ((flags & (MSM_BO_STOLEN | MSM_BO_SCANOUT)) && priv->vram.size)
use_vram = true;
if (WARN_ON(use_vram && !priv->vram.size))
if (GEM_WARN_ON(use_vram && !priv->vram.size))
return ERR_PTR(-EINVAL);
/* Disallow zero sized objects as they make the underlying

19
drivers/gpu/drm/msm/msm_gem.h
View file

@ -11,6 +11,11 @@
#include <linux/dma-resv.h>
#include "msm_drv.h"
/* Make all GEM related WARN_ON()s ratelimited.. when things go wrong they
* tend to go wrong 1000s of times in a short timespan.
*/
#define GEM_WARN_ON(x) WARN_RATELIMIT(x, "%s", __stringify(x))
/* Additional internal-use only BO flags: */
#define MSM_BO_STOLEN 0x10000000 /* try to use stolen/splash memory */
#define MSM_BO_MAP_PRIV 0x20000000 /* use IOMMU_PRIV when mapping */
@ -203,7 +208,7 @@ msm_gem_is_locked(struct drm_gem_object *obj)
static inline bool is_active(struct msm_gem_object *msm_obj)
{
WARN_ON(!msm_gem_is_locked(&msm_obj->base));
GEM_WARN_ON(!msm_gem_is_locked(&msm_obj->base));
return msm_obj->active_count;
}
@ -221,7 +226,7 @@ static inline bool is_purgeable(struct msm_gem_object *msm_obj)
static inline bool is_vunmapable(struct msm_gem_object *msm_obj)
{
WARN_ON(!msm_gem_is_locked(&msm_obj->base));
GEM_WARN_ON(!msm_gem_is_locked(&msm_obj->base));
return (msm_obj->vmap_count == 0) && msm_obj->vaddr;
}
@ -229,12 +234,12 @@ static inline void mark_purgeable(struct msm_gem_object *msm_obj)
{
struct msm_drm_private *priv = msm_obj->base.dev->dev_private;
WARN_ON(!mutex_is_locked(&priv->mm_lock));
GEM_WARN_ON(!mutex_is_locked(&priv->mm_lock));
if (is_unpurgeable(msm_obj))
return;
if (WARN_ON(msm_obj->dontneed))
if (GEM_WARN_ON(msm_obj->dontneed))
return;
priv->shrinkable_count += msm_obj->base.size >> PAGE_SHIFT;
@ -245,16 +250,16 @@ static inline void mark_unpurgeable(struct msm_gem_object *msm_obj)
{
struct msm_drm_private *priv = msm_obj->base.dev->dev_private;
WARN_ON(!mutex_is_locked(&priv->mm_lock));
GEM_WARN_ON(!mutex_is_locked(&priv->mm_lock));
if (is_unpurgeable(msm_obj))
return;
if (WARN_ON(!msm_obj->dontneed))
if (GEM_WARN_ON(!msm_obj->dontneed))
return;
priv->shrinkable_count -= msm_obj->base.size >> PAGE_SHIFT;
WARN_ON(priv->shrinkable_count < 0);
GEM_WARN_ON(priv->shrinkable_count < 0);
msm_obj->dontneed = false;
}