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-rw-r--r--drivers/gpu/drm/drm_fb_helper.c2
-rw-r--r--drivers/gpu/drm/drm_gem_shmem_helper.c32
-rw-r--r--drivers/gpu/drm/drm_ioc32.c11
-rw-r--r--drivers/gpu/drm/meson/meson_drv.c11
-rw-r--r--drivers/gpu/drm/qxl/qxl_display.c1
-rw-r--r--drivers/gpu/drm/qxl/qxl_release.c12
-rw-r--r--drivers/gpu/drm/tiny/gm12u320.c44
-rw-r--r--drivers/gpu/drm/ttm/ttm_bo.c8
-rw-r--r--drivers/gpu/drm/ttm/ttm_pool.c4
-rw-r--r--drivers/gpu/drm/udl/udl_drv.c17
-rw-r--r--drivers/gpu/drm/udl/udl_drv.h1
-rw-r--r--drivers/gpu/drm/udl/udl_main.c10
12 files changed, 128 insertions, 25 deletions
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index b9a616737c0e..f6baa2046124 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -2048,7 +2048,7 @@ static void drm_fbdev_cleanup(struct drm_fb_helper *fb_helper)
if (shadow)
vfree(shadow);
- else
+ else if (fb_helper->buffer)
drm_client_buffer_vunmap(fb_helper->buffer);
drm_client_framebuffer_delete(fb_helper->buffer);
diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c
index 9825c378dfa6..6d625cee7a6a 100644
--- a/drivers/gpu/drm/drm_gem_shmem_helper.c
+++ b/drivers/gpu/drm/drm_gem_shmem_helper.c
@@ -357,13 +357,14 @@ static void drm_gem_shmem_vunmap_locked(struct drm_gem_shmem_object *shmem,
if (--shmem->vmap_use_count > 0)
return;
- if (obj->import_attach)
+ if (obj->import_attach) {
dma_buf_vunmap(obj->import_attach->dmabuf, map);
- else
+ } else {
vunmap(shmem->vaddr);
+ drm_gem_shmem_put_pages(shmem);
+ }
shmem->vaddr = NULL;
- drm_gem_shmem_put_pages(shmem);
}
/*
@@ -525,14 +526,28 @@ static vm_fault_t drm_gem_shmem_fault(struct vm_fault *vmf)
struct drm_gem_object *obj = vma->vm_private_data;
struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj);
loff_t num_pages = obj->size >> PAGE_SHIFT;
+ vm_fault_t ret;
struct page *page;
+ pgoff_t page_offset;
- if (vmf->pgoff >= num_pages || WARN_ON_ONCE(!shmem->pages))
- return VM_FAULT_SIGBUS;
+ /* We don't use vmf->pgoff since that has the fake offset */
+ page_offset = (vmf->address - vma->vm_start) >> PAGE_SHIFT;
- page = shmem->pages[vmf->pgoff];
+ mutex_lock(&shmem->pages_lock);
- return vmf_insert_page(vma, vmf->address, page);
+ if (page_offset >= num_pages ||
+ WARN_ON_ONCE(!shmem->pages) ||
+ shmem->madv < 0) {
+ ret = VM_FAULT_SIGBUS;
+ } else {
+ page = shmem->pages[page_offset];
+
+ ret = vmf_insert_page(vma, vmf->address, page);
+ }
+
+ mutex_unlock(&shmem->pages_lock);
+
+ return ret;
}
static void drm_gem_shmem_vm_open(struct vm_area_struct *vma)
@@ -581,9 +596,6 @@ int drm_gem_shmem_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
struct drm_gem_shmem_object *shmem;
int ret;
- /* Remove the fake offset */
- vma->vm_pgoff -= drm_vma_node_start(&obj->vma_node);
-
if (obj->import_attach) {
/* Drop the reference drm_gem_mmap_obj() acquired.*/
drm_gem_object_put(obj);
diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c
index f86448ab1fe0..dc734d4828a1 100644
--- a/drivers/gpu/drm/drm_ioc32.c
+++ b/drivers/gpu/drm/drm_ioc32.c
@@ -99,6 +99,8 @@ static int compat_drm_version(struct file *file, unsigned int cmd,
if (copy_from_user(&v32, (void __user *)arg, sizeof(v32)))
return -EFAULT;
+ memset(&v, 0, sizeof(v));
+
v = (struct drm_version) {
.name_len = v32.name_len,
.name = compat_ptr(v32.name),
@@ -137,6 +139,9 @@ static int compat_drm_getunique(struct file *file, unsigned int cmd,
if (copy_from_user(&uq32, (void __user *)arg, sizeof(uq32)))
return -EFAULT;
+
+ memset(&uq, 0, sizeof(uq));
+
uq = (struct drm_unique){
.unique_len = uq32.unique_len,
.unique = compat_ptr(uq32.unique),
@@ -265,6 +270,8 @@ static int compat_drm_getclient(struct file *file, unsigned int cmd,
if (copy_from_user(&c32, argp, sizeof(c32)))
return -EFAULT;
+ memset(&client, 0, sizeof(client));
+
client.idx = c32.idx;
err = drm_ioctl_kernel(file, drm_getclient, &client, 0);
@@ -852,6 +859,8 @@ static int compat_drm_wait_vblank(struct file *file, unsigned int cmd,
if (copy_from_user(&req32, argp, sizeof(req32)))
return -EFAULT;
+ memset(&req, 0, sizeof(req));
+
req.request.type = req32.request.type;
req.request.sequence = req32.request.sequence;
req.request.signal = req32.request.signal;
@@ -889,6 +898,8 @@ static int compat_drm_mode_addfb2(struct file *file, unsigned int cmd,
struct drm_mode_fb_cmd2 req64;
int err;
+ memset(&req64, 0, sizeof(req64));
+
if (copy_from_user(&req64, argp,
offsetof(drm_mode_fb_cmd232_t, modifier)))
return -EFAULT;
diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c
index 42c5d3246cfc..453d8b4c5763 100644
--- a/drivers/gpu/drm/meson/meson_drv.c
+++ b/drivers/gpu/drm/meson/meson_drv.c
@@ -482,6 +482,16 @@ static int meson_probe_remote(struct platform_device *pdev,
return count;
}
+static void meson_drv_shutdown(struct platform_device *pdev)
+{
+ struct meson_drm *priv = dev_get_drvdata(&pdev->dev);
+ struct drm_device *drm = priv->drm;
+
+ DRM_DEBUG_DRIVER("\n");
+ drm_kms_helper_poll_fini(drm);
+ drm_atomic_helper_shutdown(drm);
+}
+
static int meson_drv_probe(struct platform_device *pdev)
{
struct component_match *match = NULL;
@@ -553,6 +563,7 @@ static const struct dev_pm_ops meson_drv_pm_ops = {
static struct platform_driver meson_drm_platform_driver = {
.probe = meson_drv_probe,
+ .shutdown = meson_drv_shutdown,
.driver = {
.name = "meson-drm",
.of_match_table = dt_match,
diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index 012bce0cdb65..10738e04c09b 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -328,6 +328,7 @@ static void qxl_crtc_update_monitors_config(struct drm_crtc *crtc,
head.id = i;
head.flags = 0;
+ head.surface_id = 0;
oldcount = qdev->monitors_config->count;
if (crtc->state->active) {
struct drm_display_mode *mode = &crtc->mode;
diff --git a/drivers/gpu/drm/qxl/qxl_release.c b/drivers/gpu/drm/qxl/qxl_release.c
index 0fcfc952d5e9..b372455e2729 100644
--- a/drivers/gpu/drm/qxl/qxl_release.c
+++ b/drivers/gpu/drm/qxl/qxl_release.c
@@ -321,7 +321,7 @@ int qxl_alloc_release_reserved(struct qxl_device *qdev, unsigned long size,
int type, struct qxl_release **release,
struct qxl_bo **rbo)
{
- struct qxl_bo *bo;
+ struct qxl_bo *bo, *free_bo = NULL;
int idr_ret;
int ret = 0;
union qxl_release_info *info;
@@ -347,7 +347,7 @@ int qxl_alloc_release_reserved(struct qxl_device *qdev, unsigned long size,
mutex_lock(&qdev->release_mutex);
if (qdev->current_release_bo_offset[cur_idx] + 1 >= releases_per_bo[cur_idx]) {
- qxl_bo_unref(&qdev->current_release_bo[cur_idx]);
+ free_bo = qdev->current_release_bo[cur_idx];
qdev->current_release_bo_offset[cur_idx] = 0;
qdev->current_release_bo[cur_idx] = NULL;
}
@@ -355,6 +355,10 @@ int qxl_alloc_release_reserved(struct qxl_device *qdev, unsigned long size,
ret = qxl_release_bo_alloc(qdev, &qdev->current_release_bo[cur_idx]);
if (ret) {
mutex_unlock(&qdev->release_mutex);
+ if (free_bo) {
+ qxl_bo_unpin(free_bo);
+ qxl_bo_unref(&free_bo);
+ }
qxl_release_free(qdev, *release);
return ret;
}
@@ -370,6 +374,10 @@ int qxl_alloc_release_reserved(struct qxl_device *qdev, unsigned long size,
*rbo = bo;
mutex_unlock(&qdev->release_mutex);
+ if (free_bo) {
+ qxl_bo_unpin(free_bo);
+ qxl_bo_unref(&free_bo);
+ }
ret = qxl_release_list_add(*release, bo);
qxl_bo_unref(&bo);
diff --git a/drivers/gpu/drm/tiny/gm12u320.c b/drivers/gpu/drm/tiny/gm12u320.c
index 33f65f4626e5..23866a54e3f9 100644
--- a/drivers/gpu/drm/tiny/gm12u320.c
+++ b/drivers/gpu/drm/tiny/gm12u320.c
@@ -83,6 +83,7 @@ MODULE_PARM_DESC(eco_mode, "Turn on Eco mode (less bright, more silent)");
struct gm12u320_device {
struct drm_device dev;
+ struct device *dmadev;
struct drm_simple_display_pipe pipe;
struct drm_connector conn;
unsigned char *cmd_buf;
@@ -601,6 +602,22 @@ static const uint64_t gm12u320_pipe_modifiers[] = {
DRM_FORMAT_MOD_INVALID
};
+/*
+ * FIXME: Dma-buf sharing requires DMA support by the importing device.
+ * This function is a workaround to make USB devices work as well.
+ * See todo.rst for how to fix the issue in the dma-buf framework.
+ */
+static struct drm_gem_object *gm12u320_gem_prime_import(struct drm_device *dev,
+ struct dma_buf *dma_buf)
+{
+ struct gm12u320_device *gm12u320 = to_gm12u320(dev);
+
+ if (!gm12u320->dmadev)
+ return ERR_PTR(-ENODEV);
+
+ return drm_gem_prime_import_dev(dev, dma_buf, gm12u320->dmadev);
+}
+
DEFINE_DRM_GEM_FOPS(gm12u320_fops);
static const struct drm_driver gm12u320_drm_driver = {
@@ -614,6 +631,7 @@ static const struct drm_driver gm12u320_drm_driver = {
.fops = &gm12u320_fops,
DRM_GEM_SHMEM_DRIVER_OPS,
+ .gem_prime_import = gm12u320_gem_prime_import,
};
static const struct drm_mode_config_funcs gm12u320_mode_config_funcs = {
@@ -640,15 +658,18 @@ static int gm12u320_usb_probe(struct usb_interface *interface,
struct gm12u320_device, dev);
if (IS_ERR(gm12u320))
return PTR_ERR(gm12u320);
+ dev = &gm12u320->dev;
+
+ gm12u320->dmadev = usb_intf_get_dma_device(to_usb_interface(dev->dev));
+ if (!gm12u320->dmadev)
+ drm_warn(dev, "buffer sharing not supported"); /* not an error */
INIT_DELAYED_WORK(&gm12u320->fb_update.work, gm12u320_fb_update_work);
mutex_init(&gm12u320->fb_update.lock);
- dev = &gm12u320->dev;
-
ret = drmm_mode_config_init(dev);
if (ret)
- return ret;
+ goto err_put_device;
dev->mode_config.min_width = GM12U320_USER_WIDTH;
dev->mode_config.max_width = GM12U320_USER_WIDTH;
@@ -658,15 +679,15 @@ static int gm12u320_usb_probe(struct usb_interface *interface,
ret = gm12u320_usb_alloc(gm12u320);
if (ret)
- return ret;
+ goto err_put_device;
ret = gm12u320_set_ecomode(gm12u320);
if (ret)
- return ret;
+ goto err_put_device;
ret = gm12u320_conn_init(gm12u320);
if (ret)
- return ret;
+ goto err_put_device;
ret = drm_simple_display_pipe_init(&gm12u320->dev,
&gm12u320->pipe,
@@ -676,24 +697,31 @@ static int gm12u320_usb_probe(struct usb_interface *interface,
gm12u320_pipe_modifiers,
&gm12u320->conn);
if (ret)
- return ret;
+ goto err_put_device;
drm_mode_config_reset(dev);
usb_set_intfdata(interface, dev);
ret = drm_dev_register(dev, 0);
if (ret)
- return ret;
+ goto err_put_device;
drm_fbdev_generic_setup(dev, 0);
return 0;
+
+err_put_device:
+ put_device(gm12u320->dmadev);
+ return ret;
}
static void gm12u320_usb_disconnect(struct usb_interface *interface)
{
struct drm_device *dev = usb_get_intfdata(interface);
+ struct gm12u320_device *gm12u320 = to_gm12u320(dev);
+ put_device(gm12u320->dmadev);
+ gm12u320->dmadev = NULL;
drm_dev_unplug(dev);
drm_atomic_helper_shutdown(dev);
}
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 20a25660b35b..101a68dc615b 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -136,7 +136,8 @@ void ttm_bo_move_to_lru_tail(struct ttm_buffer_object *bo,
struct ttm_bo_device *bdev = bo->bdev;
struct ttm_resource_manager *man;
- dma_resv_assert_held(bo->base.resv);
+ if (!bo->deleted)
+ dma_resv_assert_held(bo->base.resv);
if (bo->pin_count) {
ttm_bo_del_from_lru(bo);
@@ -508,8 +509,11 @@ static void ttm_bo_release(struct kref *kref)
* Make pinned bos immediately available to
* shrinkers, now that they are queued for
* destruction.
+ *
+ * FIXME: QXL is triggering this. Can be removed when the
+ * driver is fixed.
*/
- if (WARN_ON(bo->pin_count)) {
+ if (WARN_ON_ONCE(bo->pin_count)) {
bo->pin_count = 0;
ttm_bo_move_to_lru_tail(bo, &bo->mem, NULL);
}
diff --git a/drivers/gpu/drm/ttm/ttm_pool.c b/drivers/gpu/drm/ttm/ttm_pool.c
index 6e27cb1bf48b..4eb6efb8b8c0 100644
--- a/drivers/gpu/drm/ttm/ttm_pool.c
+++ b/drivers/gpu/drm/ttm/ttm_pool.c
@@ -268,13 +268,13 @@ static void ttm_pool_type_init(struct ttm_pool_type *pt, struct ttm_pool *pool,
/* Remove a pool_type from the global shrinker list and free all pages */
static void ttm_pool_type_fini(struct ttm_pool_type *pt)
{
- struct page *p, *tmp;
+ struct page *p;
mutex_lock(&shrinker_lock);
list_del(&pt->shrinker_list);
mutex_unlock(&shrinker_lock);
- list_for_each_entry_safe(p, tmp, &pt->pages, lru)
+ while ((p = ttm_pool_type_take(pt)))
ttm_pool_free_page(pt->pool, pt->caching, pt->order, p);
}
diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
index 9269092697d8..5703277c6f52 100644
--- a/drivers/gpu/drm/udl/udl_drv.c
+++ b/drivers/gpu/drm/udl/udl_drv.c
@@ -32,6 +32,22 @@ static int udl_usb_resume(struct usb_interface *interface)
return drm_mode_config_helper_resume(dev);
}
+/*
+ * FIXME: Dma-buf sharing requires DMA support by the importing device.
+ * This function is a workaround to make USB devices work as well.
+ * See todo.rst for how to fix the issue in the dma-buf framework.
+ */
+static struct drm_gem_object *udl_driver_gem_prime_import(struct drm_device *dev,
+ struct dma_buf *dma_buf)
+{
+ struct udl_device *udl = to_udl(dev);
+
+ if (!udl->dmadev)
+ return ERR_PTR(-ENODEV);
+
+ return drm_gem_prime_import_dev(dev, dma_buf, udl->dmadev);
+}
+
DEFINE_DRM_GEM_FOPS(udl_driver_fops);
static const struct drm_driver driver = {
@@ -40,6 +56,7 @@ static const struct drm_driver driver = {
/* GEM hooks */
.fops = &udl_driver_fops,
DRM_GEM_SHMEM_DRIVER_OPS,
+ .gem_prime_import = udl_driver_gem_prime_import,
.name = DRIVER_NAME,
.desc = DRIVER_DESC,
diff --git a/drivers/gpu/drm/udl/udl_drv.h b/drivers/gpu/drm/udl/udl_drv.h
index 875e73551ae9..cc16a13316e4 100644
--- a/drivers/gpu/drm/udl/udl_drv.h
+++ b/drivers/gpu/drm/udl/udl_drv.h
@@ -50,6 +50,7 @@ struct urb_list {
struct udl_device {
struct drm_device drm;
struct device *dev;
+ struct device *dmadev;
struct drm_simple_display_pipe display_pipe;
diff --git a/drivers/gpu/drm/udl/udl_main.c b/drivers/gpu/drm/udl/udl_main.c
index 0e2a376cb075..853f147036f6 100644
--- a/drivers/gpu/drm/udl/udl_main.c
+++ b/drivers/gpu/drm/udl/udl_main.c
@@ -315,6 +315,10 @@ int udl_init(struct udl_device *udl)
DRM_DEBUG("\n");
+ udl->dmadev = usb_intf_get_dma_device(to_usb_interface(dev->dev));
+ if (!udl->dmadev)
+ drm_warn(dev, "buffer sharing not supported"); /* not an error */
+
mutex_init(&udl->gem_lock);
if (!udl_parse_vendor_descriptor(udl)) {
@@ -343,12 +347,18 @@ int udl_init(struct udl_device *udl)
err:
if (udl->urbs.count)
udl_free_urb_list(dev);
+ put_device(udl->dmadev);
DRM_ERROR("%d\n", ret);
return ret;
}
int udl_drop_usb(struct drm_device *dev)
{
+ struct udl_device *udl = to_udl(dev);
+
udl_free_urb_list(dev);
+ put_device(udl->dmadev);
+ udl->dmadev = NULL;
+
return 0;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-12 11:07:19 +0100