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drm/i915: implement new set_mode code flow 

... using the pipe masks from the previous patch.

Well, not quite:
- We still need to call the disable_unused_functions helper, until
  we've moved the call to commit_output_state further down and
  adjusted intel_crtc_disable a bit. The next patch will do that.
- Because we don't support (yet) mode changes on more than one crtc at
  a time, some of the modeset_pipes checks are a bit hackish - but
  that only needs fixing once we incorporate global modeset support.

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2012-07-08 22:08:04 +02:00
parent e2e1ed41ed
commit 25c5b2665f
1 changed files with 63 additions and 36 deletions
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99
drivers/gpu/drm/i915/intel_display.c
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@ -6798,6 +6798,12 @@ intel_modeset_affected_pipes(struct drm_crtc *crtc, unsigned *modeset_pipes,
*prepare_pipes &= ~(*disable_pipes);
}
#define for_each_intel_crtc_masked(dev, mask, intel_crtc) \
list_for_each_entry((intel_crtc), \
&(dev)->mode_config.crtc_list, \
base.head) \
if (mask & (1 <<(intel_crtc)->pipe)) \
bool intel_set_mode(struct drm_crtc *crtc,
struct drm_display_mode *mode,
int x, int y, struct drm_framebuffer *fb)
@ -6807,73 +6813,92 @@ bool intel_set_mode(struct drm_crtc *crtc,
struct drm_display_mode *adjusted_mode, saved_mode, saved_hwmode;
struct drm_encoder_helper_funcs *encoder_funcs;
struct drm_encoder *encoder;
unsigned disable_pipe, prepare_pipes, modeset_pipes;
struct intel_crtc *intel_crtc;
unsigned disable_pipes, prepare_pipes, modeset_pipes;
bool ret = true;
intel_modeset_affected_pipes(crtc, &modeset_pipes,
&prepare_pipes, &disable_pipe);
&prepare_pipes, &disable_pipes);
DRM_DEBUG_KMS("set mode pipe masks: modeset: %x, prepare: %x, disable: %x\n",
modeset_pipes, prepare_pipes, disable_pipes);
intel_modeset_commit_output_state(dev);
crtc->enabled = drm_helper_crtc_in_use(crtc);
if (!crtc->enabled) {
drm_helper_disable_unused_functions(dev);
return true;
}
for_each_intel_crtc_masked(dev, disable_pipes, intel_crtc)
drm_helper_disable_unused_functions(dev);
saved_hwmode = crtc->hwmode;
saved_mode = crtc->mode;
adjusted_mode = intel_modeset_adjusted_mode(crtc, mode);
if (IS_ERR(adjusted_mode)) {
return false;
/* Hack: Because we don't (yet) support global modeset on multiple
* crtcs, we don't keep track of the new mode for more than one crtc.
* Hence simply check whether any bit is set in modeset_pipes in all the
* pieces of code that are not yet converted to deal with mutliple crtcs
* changing their mode at the same time. */
adjusted_mode = NULL;
if (modeset_pipes) {
adjusted_mode = intel_modeset_adjusted_mode(crtc, mode);
if (IS_ERR(adjusted_mode)) {
return false;
}
intel_crtc_prepare_encoders(dev);
}
intel_crtc_prepare_encoders(dev);
for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc)
dev_priv->display.crtc_disable(&intel_crtc->base);
dev_priv->display.crtc_disable(crtc);
crtc->mode = *mode;
if (modeset_pipes) {
crtc->mode = *mode;
crtc->x = x;
crtc->y = y;
}
/* Set up the DPLL and any encoders state that needs to adjust or depend
* on the DPLL.
*/
ret = !intel_crtc_mode_set(crtc, mode, adjusted_mode, x, y, fb);
if (!ret)
goto done;
for_each_intel_crtc_masked(dev, modeset_pipes, intel_crtc) {
ret = !intel_crtc_mode_set(&intel_crtc->base,
mode, adjusted_mode,
x, y, fb);
if (!ret)
goto done;
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
if (encoder->crtc != crtc)
continue;
if (encoder->crtc != &intel_crtc->base)
continue;
DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n",
encoder->base.id, drm_get_encoder_name(encoder),
mode->base.id, mode->name);
encoder_funcs = encoder->helper_private;
encoder_funcs->mode_set(encoder, mode, adjusted_mode);
DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n",
encoder->base.id, drm_get_encoder_name(encoder),
mode->base.id, mode->name);
encoder_funcs = encoder->helper_private;
encoder_funcs->mode_set(encoder, mode, adjusted_mode);
}
}
crtc->x = x;
crtc->y = y;
/* Now enable the clocks, plane, pipe, and connectors that we set up. */
dev_priv->display.crtc_enable(crtc);
for_each_intel_crtc_masked(dev, prepare_pipes, intel_crtc)
dev_priv->display.crtc_enable(&intel_crtc->base);
/* Store real post-adjustment hardware mode. */
crtc->hwmode = *adjusted_mode;
if (modeset_pipes) {
/* Store real post-adjustment hardware mode. */
crtc->hwmode = *adjusted_mode;
/* Calculate and store various constants which
* are later needed by vblank and swap-completion
* timestamping. They are derived from true hwmode.
*/
drm_calc_timestamping_constants(crtc);
/* Calculate and store various constants which
* are later needed by vblank and swap-completion
* timestamping. They are derived from true hwmode.
*/
drm_calc_timestamping_constants(crtc);
}
/* FIXME: add subpixel order */
done:
drm_mode_destroy(dev, adjusted_mode);
if (!ret) {
if (!ret && crtc->enabled) {
crtc->hwmode = saved_hwmode;
crtc->mode = saved_mode;
}
@ -6881,6 +6906,8 @@ bool intel_set_mode(struct drm_crtc *crtc,
return ret;
}
#undef for_each_intel_crtc_masked
static void intel_set_config_free(struct intel_set_config *config)
{
if (!config)