Commit 27cda223 authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nouveau/fbcon: add module parameter to select bits-per-pixel 



Useful for debugging.

Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 2c5ac5ba

drivers/gpu/drm/nouveau/nouveau_fbcon.c

+14 −8
Original line number Diff line number Diff line
@@ -56,6 +56,10 @@ MODULE_PARM_DESC(nofbaccel, "Disable fbcon acceleration"); 
int nouveau_nofbaccel = 0;

module_param_named(nofbaccel, nouveau_nofbaccel, int, 0400);



MODULE_PARM_DESC(fbcon_bpp, "fbcon bits-per-pixel (default: auto)");

static int nouveau_fbcon_bpp;

module_param_named(fbcon_bpp, nouveau_fbcon_bpp, int, 0400);



static void

nouveau_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)

{
@@ -488,7 +492,7 @@ nouveau_fbcon_init(struct drm_device *dev) 
{

	struct nouveau_drm *drm = nouveau_drm(dev);

	struct nouveau_fbdev *fbcon;

	int preferred_bpp;

	int preferred_bpp = nouveau_fbcon_bpp;

	int ret;



	if (!dev->mode_config.num_crtc ||
@@ -512,6 +516,7 @@ nouveau_fbcon_init(struct drm_device *dev) 
	if (ret)

		goto fini;



	if (preferred_bpp != 8 && preferred_bpp != 16 && preferred_bpp != 32) {

		if (drm->client.device.info.ram_size <= 32 * 1024 * 1024)

			preferred_bpp = 8;

		else
@@ -519,6 +524,7 @@ nouveau_fbcon_init(struct drm_device *dev) 
			preferred_bpp = 16;

		else

			preferred_bpp = 32;

	}



	/* disable all the possible outputs/crtcs before entering KMS mode */

	if (!drm_drv_uses_atomic_modeset(dev))