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disp: msm: adapt inactive list management for multiple SIs

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Commit bfb91aa ("Fix a null pointer access in msm_gem_shrinker_count()")
moves the point at which msm_gem_object is added to inactive list. Moving
this ensures that initialization will be complete before adding the
object to the list.
This change makes commit bfb91aa adaptive for both kernel-5.10 and
kernel-5.15.

Change-Id: I8efb66e239e2f8f56a3989370a58b96932a19f76
Signed-off-by: Bruce Hoo <bingchua@codeaurora.org>
This commit is contained in:
Bruce Hoo
2021-11-09 19:21:33 +08:00
parent e2a1b77afa
commit 88c7d83030
1 changed files with 118 additions and 0 deletions
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118
msm/msm_gem.c
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@@ -924,11 +924,21 @@ static const struct drm_gem_object_funcs msm_gem_object_funcs = {
};
#endif
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0))
static int msm_gem_new_impl(struct drm_device *dev,
uint32_t size, uint32_t flags,
struct dma_resv *resv,
struct drm_gem_object **obj)
{
#else
static int msm_gem_new_impl(struct drm_device *dev,
uint32_t size, uint32_t flags,
struct dma_resv *resv,
struct drm_gem_object **obj,
bool struct_mutex_locked)
{
struct msm_drm_private *priv = dev->dev_private;
#endif
struct msm_gem_object *msm_obj;
switch (flags & MSM_BO_CACHE_MASK) {
@@ -968,6 +978,12 @@ static int msm_gem_new_impl(struct drm_device *dev,
msm_obj->in_active_list = false;
msm_obj->obj_dirty = false;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 15, 0))
mutex_lock(&priv->mm_lock);
list_add_tail(&msm_obj->mm_list, &priv->inactive_list);
mutex_unlock(&priv->mm_lock);
#endif
*obj = &msm_obj->base;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0))
(*obj)->funcs = &msm_gem_object_funcs;
@@ -976,7 +992,12 @@ static int msm_gem_new_impl(struct drm_device *dev,
return 0;
}
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0))
struct drm_gem_object *msm_gem_new(struct drm_device *dev, uint32_t size, uint32_t flags)
#else
static struct drm_gem_object *_msm_gem_new(struct drm_device *dev,
uint32_t size, uint32_t flags, bool struct_mutex_locked)
#endif
{
struct msm_drm_private *priv = dev->dev_private;
struct msm_gem_object *msm_obj;
@@ -1000,7 +1021,11 @@ struct drm_gem_object *msm_gem_new(struct drm_device *dev, uint32_t size, uint32
if (size == 0)
return ERR_PTR(-EINVAL);
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0))
ret = msm_gem_new_impl(dev, size, flags, NULL, &obj);
#else
ret = msm_gem_new_impl(dev, size, flags, NULL, &obj, struct_mutex_locked);
#endif
if (ret)
goto fail;
@@ -1036,9 +1061,11 @@ struct drm_gem_object *msm_gem_new(struct drm_device *dev, uint32_t size, uint32
goto fail;
}
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0))
mutex_lock(&dev->struct_mutex);
list_add_tail(&msm_obj->mm_list, &priv->inactive_list);
mutex_unlock(&dev->struct_mutex);
#endif
return obj;
@@ -1047,6 +1074,20 @@ fail:
return ERR_PTR(ret);
}
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 15, 0))
struct drm_gem_object *msm_gem_new_locked(struct drm_device *dev,
uint32_t size, uint32_t flags)
{
return _msm_gem_new(dev, size, flags, true);
}
struct drm_gem_object *msm_gem_new(struct drm_device *dev,
uint32_t size, uint32_t flags)
{
return _msm_gem_new(dev, size, flags, false);
}
#endif
int msm_gem_delayed_import(struct drm_gem_object *obj)
{
struct dma_buf_attachment *attach;
@@ -1090,7 +1131,9 @@ fail_import:
struct drm_gem_object *msm_gem_import(struct drm_device *dev,
struct dma_buf *dmabuf, struct sg_table *sgt)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0))
struct msm_drm_private *priv = dev->dev_private;
#endif
struct msm_gem_object *msm_obj;
struct drm_gem_object *obj = NULL;
uint32_t size;
@@ -1099,7 +1142,11 @@ struct drm_gem_object *msm_gem_import(struct drm_device *dev,
size = PAGE_ALIGN(dmabuf->size);
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0))
ret = msm_gem_new_impl(dev, size, MSM_BO_WC, dmabuf->resv, &obj);
#else
ret = msm_gem_new_impl(dev, size, MSM_BO_WC, dmabuf->resv, &obj, false);
#endif
if (ret)
goto fail;
@@ -1127,9 +1174,11 @@ struct drm_gem_object *msm_gem_import(struct drm_device *dev,
mutex_unlock(&msm_obj->lock);
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0))
mutex_lock(&dev->struct_mutex);
list_add_tail(&msm_obj->mm_list, &priv->inactive_list);
mutex_unlock(&dev->struct_mutex);
#endif
return obj;
@@ -1138,6 +1187,75 @@ fail:
return ERR_PTR(ret);
}
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 15, 0))
static void *_msm_gem_kernel_new(struct drm_device *dev, uint32_t size,
uint32_t flags, struct msm_gem_address_space *aspace,
struct drm_gem_object **bo, uint64_t *iova, bool locked)
{
void *vaddr;
struct drm_gem_object *obj = _msm_gem_new(dev, size, flags, locked);
int ret;
if (IS_ERR(obj))
return ERR_CAST(obj);
if (iova) {
ret = msm_gem_get_iova(obj, aspace, iova);
if (ret)
goto err;
}
vaddr = msm_gem_get_vaddr(obj);
if (IS_ERR(vaddr)) {
msm_gem_put_iova(obj, aspace);
ret = PTR_ERR(vaddr);
goto err;
}
if (bo)
*bo = obj;
return vaddr;
err:
if (locked)
drm_gem_object_put_locked(obj);
else
drm_gem_object_put(obj);
return ERR_PTR(ret);
}
void *msm_gem_kernel_new(struct drm_device *dev, uint32_t size,
uint32_t flags, struct msm_gem_address_space *aspace,
struct drm_gem_object **bo, uint64_t *iova)
{
return _msm_gem_kernel_new(dev, size, flags, aspace, bo, iova, false);
}
void *msm_gem_kernel_new_locked(struct drm_device *dev, uint32_t size,
uint32_t flags, struct msm_gem_address_space *aspace,
struct drm_gem_object **bo, uint64_t *iova)
{
return _msm_gem_kernel_new(dev, size, flags, aspace, bo, iova, true);
}
void msm_gem_kernel_put(struct drm_gem_object *bo,
struct msm_gem_address_space *aspace, bool locked)
{
if (IS_ERR_OR_NULL(bo))
return;
msm_gem_put_vaddr(bo);
msm_gem_unpin_iova(bo, aspace);
if (locked)
drm_gem_object_put_locked(bo);
else
drm_gem_object_put(bo);
}
#endif
void msm_gem_object_set_name(struct drm_gem_object *bo, const char *fmt, ...)
{
struct msm_gem_object *msm_obj = to_msm_bo(bo);