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From: Daniel Vetter <daniel.vetter@ffwll.ch>
To: Intel Graphics Development <intel-gfx@lists.freedesktop.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Subject: [PATCH 02/58] drm/i915: rip out crtc prepare/commit indirection
Date: Sun, 19 Aug 2012 21:12:19 +0200	[thread overview]
Message-ID: <1345403595-9678-3-git-send-email-daniel.vetter@ffwll.ch> (raw)
In-Reply-To: <1345403595-9678-1-git-send-email-daniel.vetter@ffwll.ch>

Just impendance matching with the the crtc helper stuff.

... and somehow the design of this all ended up in this commit here,
too ;-)

The big plan is that this new set of crtc display_funcs take full
responsibility of modeset operations for the entire display output
pipeline (by calling down into object-specific callbacks and
functions). The platform-specific callbacks simply know best what the
proper order is.

This has the drawback that we can't do minimal change-overs any more
if a modeset just disables one encoder in a cloned configuration
(because we will only expose a disable/enable action that takes
down/sets up the entire crtc including all encoders). Imo that's the
only sane way to do it though:
- The use-case for this is pretty minimal, even when presenting (at
  least sane people) should use a dual-screen output so that you can
  see your notes on your panel. Clone mode is imo BS.
- With all the clone mode constrains, shared resources, and special
  ordering requirements (which differ even on the same platform
  sometimes for different outputs) there's no way we'd get this right
  for all cases. Especially since this is a under-used feature.
- And to top it off: On haswell even dp link re-training requires us
  to take down the entire display pipe - otherwise the chip dies.

So the only sane way is to do a full modeset on every crtc where the
output config changes in any way.

To support global modeset (i.e. set the configuration for all crtcs at
once) we'd then add one more function to allocate global and shared
objects in the best ways (e.g. fdi links, pch plls, ...). The crtc
functions would then simply use the pre-allocated stuff (and shouldn't
be able to fail, ever). We could even do all the object pinning in
there (and maybe try to defragment the global gtt if we fail)!

Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/i915/intel_display.c | 37 ++----------------------------------
 1 file changed, 2 insertions(+), 35 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index adc9868..04bec4b 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -3500,34 +3500,6 @@ static void intel_crtc_disable(struct drm_crtc *crtc)
 	}
 }
 
-/* Prepare for a mode set.
- *
- * Note we could be a lot smarter here.  We need to figure out which outputs
- * will be enabled, which disabled (in short, how the config will changes)
- * and perform the minimum necessary steps to accomplish that, e.g. updating
- * watermarks, FBC configuration, making sure PLLs are programmed correctly,
- * panel fitting is in the proper state, etc.
- */
-static void i9xx_crtc_prepare(struct drm_crtc *crtc)
-{
-	i9xx_crtc_disable(crtc);
-}
-
-static void i9xx_crtc_commit(struct drm_crtc *crtc)
-{
-	i9xx_crtc_enable(crtc);
-}
-
-static void ironlake_crtc_prepare(struct drm_crtc *crtc)
-{
-	ironlake_crtc_disable(crtc);
-}
-
-static void ironlake_crtc_commit(struct drm_crtc *crtc)
-{
-	ironlake_crtc_enable(crtc);
-}
-
 void intel_encoder_prepare(struct drm_encoder *encoder)
 {
 	struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
@@ -6626,13 +6598,8 @@ static void intel_crtc_init(struct drm_device *dev, int pipe)
 	intel_crtc->active = true; /* force the pipe off on setup_init_config */
 	intel_crtc->bpp = 24; /* default for pre-Ironlake */
 
-	if (HAS_PCH_SPLIT(dev)) {
-		intel_helper_funcs.prepare = ironlake_crtc_prepare;
-		intel_helper_funcs.commit = ironlake_crtc_commit;
-	} else {
-		intel_helper_funcs.prepare = i9xx_crtc_prepare;
-		intel_helper_funcs.commit = i9xx_crtc_commit;
-	}
+	intel_helper_funcs.prepare = dev_priv->display.crtc_disable;
+	intel_helper_funcs.commit = dev_priv->display.crtc_enable;
 
 	drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs);
 }
-- 
1.7.11.2

  parent reply	other threads:[~2012-08-19 20:20 UTC|newest]

Thread overview: 173+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-19 19:12 [PATCH 00/58] modeset-rework, the basic conversion Daniel Vetter
2012-08-19 19:12 ` [PATCH 01/58] drm/i915: add crtc->enable/disable vfuncs insted of dpms Daniel Vetter
2012-08-29 17:51   ` Jesse Barnes
2012-08-19 19:12 ` Daniel Vetter [this message]
2012-08-29 17:52   ` [PATCH 02/58] drm/i915: rip out crtc prepare/commit indirection Jesse Barnes
2012-08-19 19:12 ` [PATCH 03/58] drm/i915: add direct encoder disable/enable infrastructure Daniel Vetter
2012-08-29 18:01   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 04/58] drm/i915/hdmi: convert to encoder->disable/enable Daniel Vetter
2012-09-04 19:24   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 05/58] drm/i915/tv: convert to encoder enable/disable Daniel Vetter
2012-09-04 19:25   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 06/58] drm/i915/lvds: convert to encoder disable/enable Daniel Vetter
2012-09-04 19:26   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 07/58] drm/i915/dp: " Daniel Vetter
2012-09-04 19:33   ` Jesse Barnes
2012-09-04 19:42     ` Daniel Vetter
2012-08-19 19:12 ` [PATCH 08/58] drm/i915/crt: " Daniel Vetter
2012-09-04 19:50   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 09/58] drm/i915/sdvo: " Daniel Vetter
2012-09-04 19:52   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 10/58] drm/i915/dvo: " Daniel Vetter
2012-09-04 19:53   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 11/58] drm/i915: convert dpms functions of dvo/sdvo/crt Daniel Vetter
2012-08-29  7:12   ` [PATCH] " Daniel Vetter
2012-09-04 20:10     ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 12/58] drm/i915: rip out encoder->disable/enable checks Daniel Vetter
2012-09-04 20:11   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 13/58] drm/i915: clean up encoder_prepare/commit Daniel Vetter
2012-09-04 20:12   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 14/58] drm/i915: copy&paste drm_crtc_helper_set_config Daniel Vetter
2012-09-04 20:13   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 15/58] drm/i915: call set_base directly Daniel Vetter
2012-09-04 20:15   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 16/58] drm/i915: inline intel_best_encoder Daniel Vetter
2012-09-04 20:18   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 17/58] drm/i915: copy&paste drm_crtc_helper_set_mode Daniel Vetter
2012-09-04 20:19   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 18/58] drm/i915: simplify intel_crtc_prepare_encoders Daniel Vetter
2012-09-04 20:20   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 19/58] drm/i915: rip out encoder->prepare/commit Daniel Vetter
2012-09-04 20:21   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 20/58] drm/i915: call crtc functions directly Daniel Vetter
2012-09-04 20:22   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 21/58] drm/i915: WARN when trying to enabled an unused crtc Daniel Vetter
2012-09-04 20:23   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 22/58] drm/i915: Add interfaces to read out encoder/connector hw state Daniel Vetter
2012-09-04 20:25   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 23/58] drm/i915/dp: implement get_hw_state Daniel Vetter
2012-09-04 20:26   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 24/58] drm/i915/hdmi: " Daniel Vetter
2012-09-04 20:28   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 25/58] drm/i915/tv: " Daniel Vetter
2012-09-04 20:28   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 26/58] drm/i915/lvds: " Daniel Vetter
2012-09-04 20:28   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 27/58] drm/i915/crt: " Daniel Vetter
2012-09-04 20:29   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 28/58] drm/i915/sdvo: " Daniel Vetter
2012-09-04 20:31   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 29/58] drm/i915/dvo: " Daniel Vetter
2012-09-04 20:32   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 30/58] drm/i915: read out the modeset hw state at load and resume time Daniel Vetter
2012-09-05 16:14   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 31/58] drm/i915: check connector hw/sw state Daniel Vetter
2012-09-05 16:26   ` Jesse Barnes
2012-09-05 19:10     ` Daniel Vetter
2012-08-19 19:12 ` [PATCH 32/58] drm/i915: rip out intel_crtc->dpms_mode Daniel Vetter
2012-09-05 16:27   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 33/58] drm/i915: rip out intel_dp->dpms_mode Daniel Vetter
2012-09-05 16:28   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 34/58] drm/i915: ensure the force pipe A quirk is actually followed Daniel Vetter
2012-09-05 16:32   ` Jesse Barnes
2012-09-05 19:12     ` Daniel Vetter
2012-08-19 19:12 ` [PATCH 35/58] drm/i915: introduce struct intel_set_config Daniel Vetter
2012-09-05 16:34   ` Jesse Barnes
2012-09-05 19:27     ` Daniel Vetter
2012-08-19 19:12 ` [PATCH 36/58] drm/i915: extract modeset config save/restore code Daniel Vetter
2012-09-05 16:36   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 37/58] drm/i915: extract intel_set_config_compute_mode_changes Daniel Vetter
2012-09-05 16:42   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 38/58] drm/i915: extract intel_set_config_update_output_state Daniel Vetter
2012-09-05 16:44   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 39/58] drm/i915: implement crtc helper semantics relied upon by the fb helper Daniel Vetter
2012-09-05 16:45   ` Jesse Barnes
2012-09-05 19:15     ` Daniel Vetter
2012-08-19 19:12 ` [PATCH 40/58] drm/i915: don't update the fb base if there is no fb Daniel Vetter
2012-09-05 16:47   ` Jesse Barnes
2012-08-19 19:12 ` [PATCH 41/58] drm/i915: convert pointless error checks in set_config to BUGs Daniel Vetter
2012-09-05 16:50   ` Jesse Barnes
2012-09-05 19:19     ` Daniel Vetter
2012-08-19 19:12 ` [PATCH 42/58] drm/i915: don't save all the encoder/crtc state in set_config Daniel Vetter
2012-09-05 16:52   ` Jesse Barnes
2012-09-05 19:21     ` Daniel Vetter
2012-08-19 19:13 ` [PATCH 43/58] drm/i915: stage modeset output changes Daniel Vetter
2012-09-05 17:51   ` Jesse Barnes
2012-08-19 19:13 ` [PATCH 44/58] drm/i915: push crtc->fb update into pipe_set_base Daniel Vetter
2012-09-04 19:33   ` [PATCH] " Daniel Vetter
2012-09-05 17:55     ` Jesse Barnes
2012-09-05 19:59       ` Daniel Vetter
2012-09-05 17:54   ` [PATCH 44/58] " Jesse Barnes
2012-08-19 19:13 ` [PATCH 45/58] drm/i915: remove crtc disabling special case Daniel Vetter
2012-09-05 17:56   ` Jesse Barnes
2012-08-19 19:13 ` [PATCH 46/58] drm/i915: move output commit and crtc disabling into set_mode Daniel Vetter
2012-09-05 17:58   ` Jesse Barnes
2012-08-19 19:13 ` [PATCH 47/58] drm/i915: extract adjusted mode computation Daniel Vetter
2012-09-05 18:00   ` Jesse Barnes
2012-09-05 19:30     ` Daniel Vetter
2012-08-19 19:13 ` [PATCH 48/58] drm/i915: use staged outuput config in tv->mode_fixup Daniel Vetter
2012-09-05 18:02   ` Jesse Barnes
2012-09-06  7:30     ` Daniel Vetter
2012-08-19 19:13 ` [PATCH 49/58] drm/i915: use staged outuput config in lvds->mode_fixup Daniel Vetter
2012-09-05 18:02   ` Jesse Barnes
2012-08-19 19:13 ` [PATCH 50/58] drm/i915: compute masks of crtcs affected in set_mode Daniel Vetter
2012-08-29 10:34   ` [PATCH] " Daniel Vetter
2012-09-05 18:09     ` Jesse Barnes
2012-09-05 19:38       ` Daniel Vetter
2012-09-05 19:45         ` Jesse Barnes
2012-09-05 18:07   ` [PATCH 50/58] " Jesse Barnes
2012-08-19 19:13 ` [PATCH 51/58] drm/i915: implement new set_mode code flow Daniel Vetter
2012-09-05 18:14   ` Jesse Barnes
2012-09-05 19:43     ` Daniel Vetter
2012-09-05 19:49       ` Jesse Barnes
2012-08-19 19:13 ` [PATCH 52/58] drm/i915: push commit_output_state past crtc disabling Daniel Vetter
2012-09-05 18:17   ` Jesse Barnes
2012-08-19 19:13 ` [PATCH 53/58] drm/i915: s/intel_encoder_disable/intel_encoder_noop Daniel Vetter
2012-09-05 18:17   ` Jesse Barnes
2012-08-19 19:13 ` [PATCH 54/58] drm/i915: WARN if the pipe won't turn off Daniel Vetter
2012-09-05 18:18   ` Jesse Barnes
2012-08-19 19:13 ` [PATCH 55/58] drm/i915: switch the load detect code to the staged modeset config Daniel Vetter
2012-09-05 18:19   ` Jesse Barnes
2012-08-19 19:13 ` [PATCH 56/58] drm/i915: push commit_output_state past the crtc/encoder preparing Daniel Vetter
2012-08-31 18:12   ` [PATCH] " Daniel Vetter
2012-09-04 19:32     ` Daniel Vetter
2012-09-05 18:28       ` Jesse Barnes
2012-09-05 19:48         ` Daniel Vetter
2012-09-05 18:56           ` [PATCH] drm/i915: push crtc->fb update into pipe_set_base Daniel Vetter
2012-09-05 19:50           ` [PATCH] drm/i915: push commit_output_state past the crtc/encoder preparing Jesse Barnes
2012-09-06 20:46             ` Jesse Barnes
2012-08-19 19:13 ` [PATCH 57/58] drm/i915: disable all crtcs at suspend time Daniel Vetter
2012-08-29 21:13   ` [PATCH] drm/i915: no longer call drm_helper_resume_force_mode Daniel Vetter
2012-09-05 18:31     ` Jesse Barnes
2012-09-05 19:56       ` Daniel Vetter
2012-09-05 20:04         ` Jesse Barnes
2012-09-06 20:47           ` Jesse Barnes
2012-09-05 18:29   ` [PATCH 57/58] drm/i915: disable all crtcs at suspend time Jesse Barnes
2012-08-19 19:13 ` [PATCH 58/58] drm/i915: add tons of modeset state checks Daniel Vetter
2012-08-20  8:24   ` [PATCH] " Daniel Vetter
2012-08-20 12:22   ` Daniel Vetter
2012-08-31 18:12     ` [PATCH 1/2] " Daniel Vetter
2012-08-31 18:12       ` [PATCH 2/2] drm/i915: improve modeset state checking after dpms calls Daniel Vetter
2012-09-05 18:34         ` Jesse Barnes
2012-09-05 18:33       ` [PATCH 1/2] drm/i915: add tons of modeset state checks Jesse Barnes
2012-08-20 13:17 ` [PATCH 00/58] modeset-rework, the basic conversion Jani Nikula
2012-08-21  3:27 ` Ben Widawsky
2012-08-21 17:48 ` Lespiau, Damien
2012-08-21 18:11   ` Daniel Vetter
2012-08-22 10:46     ` Lespiau, Damien
2012-08-22 11:03       ` Lespiau, Damien
2012-08-22 19:13         ` Lespiau, Damien
2012-08-22 21:21           ` Daniel Vetter
2012-08-23 12:26             ` Lespiau, Damien
2012-08-23 22:39               ` Daniel Vetter
2012-08-29 12:26                 ` Lespiau, Damien
2012-08-30 10:40                   ` Rodrigo Vivi
2012-08-21 19:48 ` Chris Wilson
2012-08-27  8:04 ` Vijay Purushothaman
2012-09-03 17:50 ` Paulo Zanoni
2012-09-05 23:23 ` Jesse Barnes
2012-09-06  6:55   ` Daniel Vetter
2012-09-06  7:23     ` Daniel Vetter
2012-09-07  1:08   ` Jesse Barnes
2012-09-07  8:55     ` Daniel Vetter
2012-09-06 21:00 ` Daniel Vetter

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