disp: msm: update msm_gem ops and remove unused drm_driver callbacks

Update msm_gem and msm_drv to comply with latest 5.15 kernel.
Modify dma_buf_vmap() and dma-buf's vmap callback to use
struct dma_buf_map. Rename dma_resv_get_excl_rcu to _unlocked.
Remove deprecated GEM and PRIME callbacks.

Change-Id: Ifdfc7f872c988d8455f465e7d17dfbcf212bb5f6
Signed-off-by: Bruce Hoo <bingchua@codeaurora.org>
Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>

msm/msm_atomic.c

@@ -532,7 +532,7 @@ int msm_atomic_prepare_fb(struct drm_plane *plane,
 
 	obj = msm_framebuffer_bo(new_state->fb, 0);
 	msm_obj = to_msm_bo(obj);
-	fence = dma_resv_get_excl_rcu(msm_obj->resv);
+	fence = dma_resv_get_excl_unlocked(msm_obj->resv);
 
 	drm_atomic_set_fence_for_plane(new_state, fence);
 
@@ -740,7 +740,7 @@ int msm_atomic_commit(struct drm_device *dev,
 				msm_framebuffer_bo(new_plane_state->fb, 0);
 			struct msm_gem_object *msm_obj = to_msm_bo(obj);
 			struct dma_fence *fence =
-				dma_resv_get_excl_rcu(msm_obj->resv);
+				dma_resv_get_excl_unlocked(msm_obj->resv);
 
 			drm_atomic_set_fence_for_plane(new_plane_state, fence);
 		}

msm/msm_drv.c

@@ -1688,12 +1688,6 @@ static const struct drm_ioctl_desc msm_ioctls[] = {
 			DRM_UNLOCKED),
 };
 
-static const struct vm_operations_struct vm_ops = {
-	.fault = msm_gem_fault,
-	.open = drm_gem_vm_open,
-	.close = drm_gem_vm_close,
-};
-
 static const struct file_operations fops = {
 	.owner              = THIS_MODULE,
 	.open               = drm_open,
@@ -1718,20 +1712,12 @@ static struct drm_driver msm_driver = {
 	.irq_preinstall     = msm_irq_preinstall,
 	.irq_postinstall    = msm_irq_postinstall,
 	.irq_uninstall      = msm_irq_uninstall,
-	.gem_free_object_unlocked    = msm_gem_free_object,
-	.gem_vm_ops         = &vm_ops,
 	.dumb_create        = msm_gem_dumb_create,
 	.dumb_map_offset    = msm_gem_dumb_map_offset,
 	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
-	.gem_prime_export   = drm_gem_prime_export,
 	.gem_prime_import   = msm_gem_prime_import,
-	.gem_prime_pin      = msm_gem_prime_pin,
-	.gem_prime_unpin    = msm_gem_prime_unpin,
-	.gem_prime_get_sg_table = msm_gem_prime_get_sg_table,
 	.gem_prime_import_sg_table = msm_gem_prime_import_sg_table,
-	.gem_prime_vmap     = msm_gem_prime_vmap,
-	.gem_prime_vunmap   = msm_gem_prime_vunmap,
 	.gem_prime_mmap     = msm_gem_prime_mmap,
 	.ioctls             = msm_ioctls,
 	.num_ioctls         = ARRAY_SIZE(msm_ioctls),

msm/msm_drv.h

@@ -1146,7 +1146,6 @@ void msm_gem_sync(struct drm_gem_object *obj);
 int msm_gem_mmap_obj(struct drm_gem_object *obj,
 			struct vm_area_struct *vma);
 int msm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
-vm_fault_t msm_gem_fault(struct vm_fault *vmf);
 uint64_t msm_gem_mmap_offset(struct drm_gem_object *obj);
 int msm_gem_get_iova(struct drm_gem_object *obj,
 		struct msm_gem_address_space *aspace, uint64_t *iova);
@@ -1166,8 +1165,8 @@ int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
 int msm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
 		uint32_t handle, uint64_t *offset);
 struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj);
-void *msm_gem_prime_vmap(struct drm_gem_object *obj);
-void msm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
+int msm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map);
+void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map);
 int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);
 struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
 		struct dma_buf_attachment *attach, struct sg_table *sg);

msm/msm_gem.c

@@ -255,7 +255,7 @@ int msm_gem_mmap(struct file *filp, struct vm_area_struct *vma)
 	return msm_gem_mmap_obj(vma->vm_private_data, vma);
 }
 
-vm_fault_t msm_gem_fault(struct vm_fault *vmf)
+static vm_fault_t msm_gem_fault(struct vm_fault *vmf)
 {
 	struct vm_area_struct *vma = vmf->vma;
 	struct drm_gem_object *obj = vma->vm_private_data;
@@ -717,6 +717,7 @@ fail:
 static void *get_vaddr(struct drm_gem_object *obj, unsigned madv)
 {
 	struct msm_gem_object *msm_obj = to_msm_bo(obj);
+	struct dma_buf_map map;
 	int ret = 0;
 
 	mutex_lock(&msm_obj->lock);
@@ -751,8 +752,10 @@ static void *get_vaddr(struct drm_gem_object *obj, unsigned madv)
 					goto fail;
 			}
 
-			msm_obj->vaddr =
-				dma_buf_vmap(obj->import_attach->dmabuf);
+			ret = dma_buf_vmap(obj->import_attach->dmabuf, &map);
+			if (ret)
+				return ERR_PTR(ret);
+			msm_obj->vaddr = map.vaddr;
 		} else {
 			msm_obj->vaddr = vmap(pages, obj->size >> PAGE_SHIFT,
 				VM_MAP, PAGE_KERNEL);
@@ -864,6 +867,7 @@ void msm_gem_purge(struct drm_gem_object *obj, enum msm_gem_lock subclass)
 static void msm_gem_vunmap_locked(struct drm_gem_object *obj)
 {
 	struct msm_gem_object *msm_obj = to_msm_bo(obj);
+	struct dma_buf_map map = DMA_BUF_MAP_INIT_VADDR(msm_obj->vaddr);
 
 	WARN_ON(!mutex_is_locked(&msm_obj->lock));
 
@@ -871,9 +875,8 @@ static void msm_gem_vunmap_locked(struct drm_gem_object *obj)
 		return;
 
 	if (obj->import_attach) {
-		dma_buf_vunmap(obj->import_attach->dmabuf, msm_obj->vaddr);
-		if (obj->dev && obj->dev->dev && !dev_is_dma_coherent(obj->dev->dev))
-			dma_buf_end_cpu_access(obj->import_attach->dmabuf, DMA_BIDIRECTIONAL);
+		dma_buf_vunmap(obj->import_attach->dmabuf, &map);
+		dma_buf_end_cpu_access(obj->import_attach->dmabuf, DMA_BIDIRECTIONAL);
 	} else {
 		vunmap(msm_obj->vaddr);
 	}
@@ -898,7 +901,7 @@ int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, ktime_t *timeout)
 		op & MSM_PREP_NOSYNC ? 0 : timeout_to_jiffies(timeout);
 	long ret;
 
-	ret = dma_resv_wait_timeout_rcu(msm_obj->resv, write,
+	ret = dma_resv_wait_timeout(msm_obj->resv, write,
 						  true,  remain);
 	if (ret == 0)
 		return remain == 0 ? -EBUSY : -ETIMEDOUT;
@@ -1015,6 +1018,7 @@ void msm_gem_free_object(struct drm_gem_object *obj)
 	struct msm_gem_object *msm_obj = to_msm_bo(obj);
 	struct drm_device *dev = obj->dev;
 	struct msm_drm_private *priv = dev->dev_private;
+	struct dma_buf_map map = DMA_BUF_MAP_INIT_VADDR(msm_obj->vaddr);
 
 	/* object should not be on active list: */
 	WARN_ON(is_active(msm_obj));
@@ -1035,7 +1039,7 @@ void msm_gem_free_object(struct drm_gem_object *obj)
 
 	if (obj->import_attach) {
 		if (msm_obj->vaddr)
-			dma_buf_vunmap(obj->import_attach->dmabuf, msm_obj->vaddr);
+			dma_buf_vunmap(obj->import_attach->dmabuf, &map);
 
 		/* Don't drop the pages for imported dmabuf, as they are not
 		 * ours, just free the array we allocated:
@@ -1082,6 +1086,22 @@ int msm_gem_new_handle(struct drm_device *dev, struct drm_file *file,
 	return ret;
 }
 
+static const struct vm_operations_struct vm_ops = {
+	.fault = msm_gem_fault,
+	.open = drm_gem_vm_open,
+	.close = drm_gem_vm_close,
+};
+
+static const struct drm_gem_object_funcs msm_gem_object_funcs = {
+	.free = msm_gem_free_object,
+	.pin = msm_gem_prime_pin,
+	.unpin = msm_gem_prime_unpin,
+	.get_sg_table = msm_gem_prime_get_sg_table,
+	.vmap = msm_gem_prime_vmap,
+	.vunmap = msm_gem_prime_vunmap,
+	.vm_ops = &vm_ops,
+};
+
 static int msm_gem_new_impl(struct drm_device *dev,
 		uint32_t size, uint32_t flags,
 		struct dma_resv *resv,
@@ -1127,6 +1147,7 @@ static int msm_gem_new_impl(struct drm_device *dev,
 	msm_obj->obj_dirty = false;
 
 	*obj = &msm_obj->base;
+	(*obj)->funcs = &msm_gem_object_funcs;
 
 	return 0;
 }

msm/msm_gem_prime.c

@@ -37,12 +37,13 @@ struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj)
 	return drm_prime_pages_to_sg(obj->dev, msm_obj->pages, npages);
 }
 
-void *msm_gem_prime_vmap(struct drm_gem_object *obj)
+int msm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map)
 {
-	return msm_gem_get_vaddr(obj);
+	map->vaddr = msm_gem_get_vaddr(obj);
+	return IS_ERR_OR_NULL(map->vaddr);
 }
 
-void msm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr)
+void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map)
 {
 	msm_gem_put_vaddr(obj);
 }

rotator/sde_rotator_r3.c

@@ -1212,6 +1212,8 @@ static struct sde_hw_rotator_context *sde_hw_rotator_get_ctx(
 static void sde_hw_rotator_map_vaddr(struct sde_dbg_buf *dbgbuf,
 		struct sde_layer_buffer *buf, struct sde_mdp_data *data)
 {
+	struct dma_buf_map map;
+
 	dbgbuf->dmabuf = data->p[0].srcp_dma_buf;
 	dbgbuf->buflen = data->p[0].srcp_dma_buf->size;
 
@@ -1221,7 +1223,8 @@ static void sde_hw_rotator_map_vaddr(struct sde_dbg_buf *dbgbuf,
 
 	if (dbgbuf->dmabuf && (dbgbuf->buflen > 0)) {
 		dma_buf_begin_cpu_access(dbgbuf->dmabuf, DMA_FROM_DEVICE);
-		dbgbuf->vaddr = dma_buf_vmap(dbgbuf->dmabuf);
+		dma_buf_vmap(dbgbuf->dmabuf, &map);
+		dbgbuf->vaddr = map.vaddr;
 		SDEROT_DBG("vaddr mapping: 0x%pK/%ld w:%d/h:%d\n",
 				dbgbuf->vaddr, dbgbuf->buflen,
 				dbgbuf->width, dbgbuf->height);