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drm/i915: Use crtc->state in intel_fbdev_init_bios

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fbdev init shouldn't race with userspace since it's called from
intel_modeset_init, so it's safe to dereference crtc->state and
assume nothing changed yet.

At least not more harmful than crtc->config.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181004094604.2646-11-maarten.lankhorst@linux.intel.com
This commit is contained in:
Maarten Lankhorst 2018-10-04 11:46:01 +02:00
parent 0e5fa64610
commit 6e3d9dd0ae
1 changed files with 4 additions and 4 deletions
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8
drivers/gpu/drm/i915/intel_fbdev.c
View file

@ -593,7 +593,7 @@ static bool intel_fbdev_init_bios(struct drm_device *dev,
* pipe. Note we need to use the selected fb's pitch and bpp
* rather than the current pipe's, since they differ.
*/
cur_size = intel_crtc->config->base.adjusted_mode.crtc_hdisplay;
cur_size = crtc->state->adjusted_mode.crtc_hdisplay;
cur_size = cur_size * fb->base.format->cpp[0];
if (fb->base.pitches[0] < cur_size) {
DRM_DEBUG_KMS("fb not wide enough for plane %c (%d vs %d)\n",
@ -603,13 +603,13 @@ static bool intel_fbdev_init_bios(struct drm_device *dev,
break;
}
cur_size = intel_crtc->config->base.adjusted_mode.crtc_vdisplay;
cur_size = crtc->state->adjusted_mode.crtc_vdisplay;
cur_size = intel_fb_align_height(&fb->base, 0, cur_size);
cur_size *= fb->base.pitches[0];
DRM_DEBUG_KMS("pipe %c area: %dx%d, bpp: %d, size: %d\n",
pipe_name(intel_crtc->pipe),
intel_crtc->config->base.adjusted_mode.crtc_hdisplay,
intel_crtc->config->base.adjusted_mode.crtc_vdisplay,
crtc->state->adjusted_mode.crtc_hdisplay,
crtc->state->adjusted_mode.crtc_vdisplay,
fb->base.format->cpp[0] * 8,
cur_size);