Commit 1e85b7d4 authored by Sumera Priyadarsini's avatar Sumera Priyadarsini Committed by Melissa Wen
Browse files

drm/vkms: Add support for writeback module 



Add enable_writeback feature to vkms_config as a module.

Signed-off-by: default avatarSumera Priyadarsini <sylphrenadin@gmail.com>
Reviewed-by: default avatarMelissa Wen <melissa.srw@gmail.com>
Signed-off-by: default avatarMelissa Wen <melissa.srw@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/15802da4f1cdfed2b728c3d35731732f161dd073.1610391685.git.sylphrenadin@gmail.com
parent 2df7af93

drivers/gpu/drm/vkms/vkms_drv.c

+5 −0
Original line number Diff line number Diff line
@@ -40,6 +40,10 @@ static bool enable_cursor = true; 
module_param_named(enable_cursor, enable_cursor, bool, 0444);

MODULE_PARM_DESC(enable_cursor, "Enable/Disable cursor support");



static bool enable_writeback = true;

module_param_named(enable_writeback, enable_writeback, bool, 0444);

MODULE_PARM_DESC(enable_writeback, "Enable/Disable writeback connector support");



DEFINE_DRM_GEM_FOPS(vkms_driver_fops);



static void vkms_release(struct drm_device *dev)
@@ -189,6 +193,7 @@ static int __init vkms_init(void) 
	default_config = config;



	config->cursor = enable_cursor;

	config->writeback = enable_writeback;



	return vkms_create(config);

}

drivers/gpu/drm/vkms/vkms_drv.h

+1 −0
Original line number Diff line number Diff line
@@ -83,6 +83,7 @@ struct vkms_output { 
struct vkms_device;



struct vkms_config {

	bool writeback;

	bool cursor;

	/* only set when instantiated */

	struct vkms_device *dev;

drivers/gpu/drm/vkms/vkms_output.c

+6 −3
Original line number Diff line number Diff line
@@ -41,6 +41,7 @@ int vkms_output_init(struct vkms_device *vkmsdev, int index) 
	struct drm_crtc *crtc = &output->crtc;

	struct drm_plane *primary, *cursor = NULL;

	int ret;

	int writeback;



	primary = vkms_plane_init(vkmsdev, DRM_PLANE_TYPE_PRIMARY, index);

	if (IS_ERR(primary))
@@ -80,9 +81,11 @@ int vkms_output_init(struct vkms_device *vkmsdev, int index) 
		goto err_attach;

	}



	ret = vkms_enable_writeback_connector(vkmsdev);

	if (ret)

	if (vkmsdev->config->writeback) {

		writeback = vkms_enable_writeback_connector(vkmsdev);

		if (writeback)

			DRM_ERROR("Failed to init writeback connector\n");

	}



	drm_mode_config_reset(dev);