drm/nouveau/fbcon: add module parameter to select bits-per-pixel
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Web: https://git.kernel.org/torvalds/c/27cda223327505a19d912536dff205ccdc5c5c2a Commit: 27cda223327505a19d912536dff205ccdc5c5c2a Parent: 2c5ac5ba4f855b8cb3f20c52c1a1e0773e671164 Refname: refs/heads/master Author: Ben Skeggs <[email protected]> AuthorDate: Fri Jan 12 17:50:37 2018 +1000 Committer: Ben Skeggs <[email protected]> CommitDate: Fri Feb 2 15:24:05 2018 +1000 drm/nouveau/fbcon: add module parameter to select bits-per-pixel Useful for debugging. Signed-off-by: Ben Skeggs <[email protected]> --- drivers/gpu/drm/nouveau/nouveau_fbcon.c | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c index ee5d1dc2eaf5..85c1f10bc2b6 100644 --- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c +++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c @@ -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 || @@ -512,13 +516,15 @@ nouveau_fbcon_init(struct drm_device *dev) if (ret) goto fini; - if (drm->client.device.info.ram_size <= 32 * 1024 * 1024) - preferred_bpp = 8; - else - if (drm->client.device.info.ram_size <= 64 * 1024 * 1024) - preferred_bpp = 16; - else - preferred_bpp = 32; + if (preferred_bpp != 8 && preferred_bpp != 16 && preferred_bpp != 32) { + if (drm->client.device.info.ram_size <= 32 * 1024 * 1024) + preferred_bpp = 8; + else + if (drm->client.device.info.ram_size <= 64 * 1024 * 1024) + preferred_bpp = 16; + else + preferred_bpp = 32; + } /* disable all the possible outputs/crtcs before entering KMS mode */ if (!drm_drv_uses_atomic_modeset(dev)) -- To unsubscribe from this list: send the line "unsubscribe git-commits-head" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html