diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2018-01-12 08:50:37 +0100 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2018-02-02 06:24:05 +0100 |
| commit | 27cda223327505a19d912536dff205ccdc5c5c2a (patch) | |
| tree | b8ffa1682568ab280f6e35708ae0e072f2a1739f /drivers/gpu/drm/nouveau/nouveau_fbcon.c | |
| parent | drm/nouveau/secboot/gp108: implement on top of acr_r370 (diff) | |
| download | linux-27cda223327505a19d912536dff205ccdc5c5c2a.tar.xz linux-27cda223327505a19d912536dff205ccdc5c5c2a.zip | |
drm/nouveau/fbcon: add module parameter to select bits-per-pixel
Useful for debugging.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_fbcon.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_fbcon.c | 22 |
1 files 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)) |