diff options
Diffstat (limited to 'drivers/gpu/drm/xen/xen_drm_front.c')
| -rw-r--r-- | drivers/gpu/drm/xen/xen_drm_front.c | 101 |
1 files changed, 37 insertions, 64 deletions
diff --git a/drivers/gpu/drm/xen/xen_drm_front.c b/drivers/gpu/drm/xen/xen_drm_front.c index 1fd458e877ca..4fa45dbe1dcb 100644 --- a/drivers/gpu/drm/xen/xen_drm_front.c +++ b/drivers/gpu/drm/xen/xen_drm_front.c @@ -11,7 +11,6 @@ #include <linux/delay.h> #include <linux/dma-mapping.h> #include <linux/module.h> -#include <linux/of_device.h> #include <drm/drm_atomic_helper.h> #include <drm/drm_drv.h> @@ -19,6 +18,7 @@ #include <drm/drm_probe_helper.h> #include <drm/drm_file.h> #include <drm/drm_gem.h> +#include <drm/drm_print.h> #include <xen/platform_pci.h> #include <xen/xen.h> @@ -157,7 +157,8 @@ int xen_drm_front_mode_set(struct xen_drm_front_drm_pipeline *pipeline, int xen_drm_front_dbuf_create(struct xen_drm_front_info *front_info, u64 dbuf_cookie, u32 width, u32 height, - u32 bpp, u64 size, struct page **pages) + u32 bpp, u64 size, u32 offset, + struct page **pages) { struct xen_drm_front_evtchnl *evtchnl; struct xen_drm_front_dbuf *dbuf; @@ -194,6 +195,7 @@ int xen_drm_front_dbuf_create(struct xen_drm_front_info *front_info, req->op.dbuf_create.gref_directory = xen_front_pgdir_shbuf_get_dir_start(&dbuf->shbuf); req->op.dbuf_create.buffer_sz = size; + req->op.dbuf_create.data_ofs = offset; req->op.dbuf_create.dbuf_cookie = dbuf_cookie; req->op.dbuf_create.width = width; req->op.dbuf_create.height = height; @@ -379,6 +381,23 @@ void xen_drm_front_on_frame_done(struct xen_drm_front_info *front_info, fb_cookie); } +void xen_drm_front_gem_object_free(struct drm_gem_object *obj) +{ + struct xen_drm_front_drm_info *drm_info = obj->dev->dev_private; + int idx; + + if (drm_dev_enter(obj->dev, &idx)) { + xen_drm_front_dbuf_destroy(drm_info->front_info, + xen_drm_front_dbuf_to_cookie(obj)); + drm_dev_exit(idx); + } else { + dbuf_free(&drm_info->front_info->dbuf_list, + xen_drm_front_dbuf_to_cookie(obj)); + } + + xen_drm_front_gem_free_object_unlocked(obj); +} + static int xen_drm_drv_dumb_create(struct drm_file *filp, struct drm_device *dev, struct drm_mode_create_dumb *args) @@ -400,15 +419,15 @@ static int xen_drm_drv_dumb_create(struct drm_file *filp, args->size = args->pitch * args->height; obj = xen_drm_front_gem_create(dev, args->size); - if (IS_ERR_OR_NULL(obj)) { - ret = PTR_ERR_OR_ZERO(obj); + if (IS_ERR(obj)) { + ret = PTR_ERR(obj); goto fail; } ret = xen_drm_front_dbuf_create(drm_info->front_info, xen_drm_front_dbuf_to_cookie(obj), args->width, args->height, args->bpp, - args->size, + args->size, 0, xen_drm_front_gem_get_pages(obj)); if (ret) goto fail_backend; @@ -419,7 +438,7 @@ static int xen_drm_drv_dumb_create(struct drm_file *filp, goto fail_handle; /* Drop reference from allocate - handle holds it now */ - drm_gem_object_put_unlocked(obj); + drm_gem_object_put(obj); return 0; fail_handle: @@ -427,29 +446,12 @@ fail_handle: xen_drm_front_dbuf_to_cookie(obj)); fail_backend: /* drop reference from allocate */ - drm_gem_object_put_unlocked(obj); + drm_gem_object_put(obj); fail: DRM_ERROR("Failed to create dumb buffer: %d\n", ret); return ret; } -static void xen_drm_drv_free_object_unlocked(struct drm_gem_object *obj) -{ - struct xen_drm_front_drm_info *drm_info = obj->dev->dev_private; - int idx; - - if (drm_dev_enter(obj->dev, &idx)) { - xen_drm_front_dbuf_destroy(drm_info->front_info, - xen_drm_front_dbuf_to_cookie(obj)); - drm_dev_exit(idx); - } else { - dbuf_free(&drm_info->front_info->dbuf_list, - xen_drm_front_dbuf_to_cookie(obj)); - } - - xen_drm_front_gem_free_object_unlocked(obj); -} - static void xen_drm_drv_release(struct drm_device *dev) { struct xen_drm_front_drm_info *drm_info = dev->dev_private; @@ -467,42 +469,16 @@ static void xen_drm_drv_release(struct drm_device *dev) kfree(drm_info); } -static const struct file_operations xen_drm_dev_fops = { - .owner = THIS_MODULE, - .open = drm_open, - .release = drm_release, - .unlocked_ioctl = drm_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = drm_compat_ioctl, -#endif - .poll = drm_poll, - .read = drm_read, - .llseek = no_llseek, - .mmap = xen_drm_front_gem_mmap, -}; +DEFINE_DRM_GEM_FOPS(xen_drm_dev_fops); -static const struct vm_operations_struct xen_drm_drv_vm_ops = { - .open = drm_gem_vm_open, - .close = drm_gem_vm_close, -}; - -static struct drm_driver xen_drm_driver = { +static const struct drm_driver xen_drm_driver = { .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC, .release = xen_drm_drv_release, - .gem_vm_ops = &xen_drm_drv_vm_ops, - .gem_free_object_unlocked = xen_drm_drv_free_object_unlocked, - .prime_handle_to_fd = drm_gem_prime_handle_to_fd, - .prime_fd_to_handle = drm_gem_prime_fd_to_handle, .gem_prime_import_sg_table = xen_drm_front_gem_import_sg_table, - .gem_prime_get_sg_table = xen_drm_front_gem_get_sg_table, - .gem_prime_vmap = xen_drm_front_gem_prime_vmap, - .gem_prime_vunmap = xen_drm_front_gem_prime_vunmap, - .gem_prime_mmap = xen_drm_front_gem_prime_mmap, .dumb_create = xen_drm_drv_dumb_create, .fops = &xen_drm_dev_fops, .name = "xendrm-du", .desc = "Xen PV DRM Display Unit", - .date = "20180221", .major = 1, .minor = 0, @@ -515,6 +491,9 @@ static int xen_drm_drv_init(struct xen_drm_front_info *front_info) struct drm_device *drm_dev; int ret; + if (drm_firmware_drivers_only()) + return -ENODEV; + DRM_INFO("Creating %s\n", xen_drm_driver.desc); drm_info = kzalloc(sizeof(*drm_info), GFP_KERNEL); @@ -529,7 +508,7 @@ static int xen_drm_drv_init(struct xen_drm_front_info *front_info) drm_dev = drm_dev_alloc(&xen_drm_driver, dev); if (IS_ERR(drm_dev)) { ret = PTR_ERR(drm_dev); - goto fail; + goto fail_dev; } drm_info->drm_dev = drm_dev; @@ -546,11 +525,6 @@ static int xen_drm_drv_init(struct xen_drm_front_info *front_info) if (ret) goto fail_register; - DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n", - xen_drm_driver.name, xen_drm_driver.major, - xen_drm_driver.minor, xen_drm_driver.patchlevel, - xen_drm_driver.date, drm_dev->primary->index); - return 0; fail_register: @@ -559,8 +533,10 @@ fail_modeset: drm_kms_helper_poll_fini(drm_dev); drm_mode_config_cleanup(drm_dev); drm_dev_put(drm_dev); -fail: +fail_dev: kfree(drm_info); + front_info->drm_info = NULL; +fail: return ret; } @@ -647,9 +623,7 @@ static void displback_changed(struct xenbus_device *xb_dev, switch (backend_state) { case XenbusStateReconfiguring: - /* fall through */ case XenbusStateReconfigured: - /* fall through */ case XenbusStateInitialised: break; @@ -699,7 +673,6 @@ static void displback_changed(struct xenbus_device *xb_dev, break; case XenbusStateUnknown: - /* fall through */ case XenbusStateClosed: if (xb_dev->state == XenbusStateClosed) break; @@ -735,7 +708,7 @@ static int xen_drv_probe(struct xenbus_device *xb_dev, return xenbus_switch_state(xb_dev, XenbusStateInitialising); } -static int xen_drv_remove(struct xenbus_device *dev) +static void xen_drv_remove(struct xenbus_device *dev) { struct xen_drm_front_info *front_info = dev_get_drvdata(&dev->dev); int to = 100; @@ -769,7 +742,6 @@ static int xen_drv_remove(struct xenbus_device *dev) xen_drm_drv_fini(front_info); xenbus_frontend_closed(dev); - return 0; } static const struct xenbus_device_id xen_driver_ids[] = { @@ -782,6 +754,7 @@ static struct xenbus_driver xen_driver = { .probe = xen_drv_probe, .remove = xen_drv_remove, .otherend_changed = displback_changed, + .not_essential = true, }; static int __init xen_drv_init(void) |