From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
To: intel-gfx@lists.freedesktop.org
Subject: [PATCH 02/23] HAX drm/i915: Disable FEC entirely for now
Date: Fri, 20 Sep 2019 13:42:14 +0200 [thread overview]
Message-ID: <20190920114235.22411-2-maarten.lankhorst@linux.intel.com> (raw)
In-Reply-To: <20190920114235.22411-1-maarten.lankhorst@linux.intel.com>
I get a permanent FIFO underrun when enabling FEC with big joiner,
so for now disable it.
It seems that even at 1024x768 resolution without bigjoiner we don't
get a working configuration. Flag is set but vblank timing shows that
vblanks are delivered slightly faster, so the extra overhead we
calculated for data M/N goes unused.
Not-Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
---
drivers/gpu/drm/i915/display/intel_dp.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 4dfb78dc7fa2..02242a16640b 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -1877,7 +1877,8 @@ static bool intel_dp_source_supports_dsc(struct intel_dp *intel_dp,
static bool intel_dp_supports_dsc(struct intel_dp *intel_dp,
const struct intel_crtc_state *pipe_config)
{
- if (!intel_dp_is_edp(intel_dp) && !pipe_config->fec_enable)
+ /* HACK: Disable FEC until we solved FIFO underruns */
+ if (!intel_dp_is_edp(intel_dp) && !pipe_config->fec_enable && 0)
return false;
return intel_dp_source_supports_dsc(intel_dp, pipe_config) &&
@@ -2024,8 +2025,9 @@ static int intel_dp_dsc_compute_config(struct intel_dp *intel_dp,
int pipe_bpp;
int ret;
+ /* HACK: Disable FEC until we solved FIFO underruns */
pipe_config->fec_enable = !intel_dp_is_edp(intel_dp) &&
- intel_dp_supports_fec(intel_dp, pipe_config);
+ intel_dp_supports_fec(intel_dp, pipe_config) && 0;
if (!intel_dp_supports_dsc(intel_dp, pipe_config))
return -EINVAL;
--
2.20.1
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next prev parent reply other threads:[~2019-09-20 11:42 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-20 11:42 [PATCH 01/23] drm/i915/dp: Fix dsc bpp calculations, v2 Maarten Lankhorst
2019-09-20 11:42 ` Maarten Lankhorst [this message]
2019-09-23 13:08 ` [PATCH 02/23] HAX drm/i915: Disable FEC entirely for now Maarten Lankhorst
2019-09-20 11:42 ` [PATCH 03/23] drm/i915: Prepare to split crtc state in uapi and hw state Maarten Lankhorst
2019-09-24 23:40 ` Matt Roper
2019-09-25 9:09 ` Maarten Lankhorst
2019-09-20 11:42 ` [PATCH 04/23] drm/i915: Handle a few more cases for hw/sw split Maarten Lankhorst
2019-09-24 23:40 ` Matt Roper
2019-09-20 11:42 ` [PATCH 05/23] drm/i915: Complete sw/hw split Maarten Lankhorst
2019-09-24 23:41 ` Matt Roper
2019-09-25 9:29 ` Maarten Lankhorst
2019-09-25 13:01 ` Ville Syrjälä
2019-09-25 14:12 ` Maarten Lankhorst
2019-09-25 14:18 ` Maarten Lankhorst
2019-09-25 14:54 ` Ville Syrjälä
2019-09-20 11:42 ` [PATCH 06/23] drm/i915: Get rid of crtc_state->fb_changed Maarten Lankhorst
2019-09-24 23:44 ` Matt Roper
2019-09-20 11:42 ` [PATCH 07/23] drm/i915: Remove begin/finish_crtc_commit Maarten Lankhorst
2019-09-25 4:17 ` Matt Roper
2019-09-25 14:14 ` Maarten Lankhorst
2019-09-25 22:14 ` Manasi Navare
2019-09-20 11:42 ` [PATCH 08/23] drm/i915: Rename planar linked plane variables Maarten Lankhorst
2019-09-25 4:30 ` Matt Roper
2019-09-20 11:42 ` [PATCH 09/23] drm/i915: Do not add all planes when checking scalers on glk+ Maarten Lankhorst
2019-09-25 4:55 ` Matt Roper
2019-09-25 12:45 ` Maarten Lankhorst
2019-09-25 13:02 ` Ville Syrjälä
2019-09-20 11:42 ` [PATCH 10/23] drm/i915/dp: Allow big joiner modes in intel_dp_mode_valid() Maarten Lankhorst
2019-09-25 5:30 ` Matt Roper
2019-09-25 5:56 ` Matt Roper
2019-09-25 22:09 ` Manasi Navare
2019-09-26 16:00 ` Maarten Lankhorst
2019-09-20 11:42 ` [PATCH 11/23] drm/i915: Try to make bigjoiner work in atomic check Maarten Lankhorst
2019-09-26 3:48 ` Matt Roper
2019-09-30 14:12 ` Maarten Lankhorst
2019-09-20 11:42 ` [PATCH 12/23] drm/i915: Enable big joiner support in enable and disable sequences Maarten Lankhorst
2019-09-26 5:18 ` Matt Roper
2019-09-26 23:54 ` Matt Roper
2019-09-27 8:25 ` Maarten Lankhorst
2019-09-20 11:42 ` [PATCH 13/23] drm/i915: Make hardware readout work on i915 Maarten Lankhorst
2019-09-27 0:49 ` Matt Roper
2019-09-20 11:42 ` [PATCH 14/23] drm/i915: Prepare update_slave() for bigjoiner plane updates Maarten Lankhorst
2019-09-27 3:18 ` Matt Roper
2019-09-20 11:42 ` [PATCH 15/23] drm/i915: Link planes in a bigjoiner configuration Maarten Lankhorst
2019-10-01 16:44 ` Matt Roper
2019-10-01 17:21 ` Ville Syrjälä
2019-09-20 11:42 ` [PATCH 16/23] drm/i915: Program planes in bigjoiner mode Maarten Lankhorst
2019-09-26 13:06 ` Ville Syrjälä
2019-09-26 15:50 ` Maarten Lankhorst
2019-09-26 16:09 ` Ville Syrjälä
2019-09-26 16:13 ` Maarten Lankhorst
2019-09-26 16:26 ` Ville Syrjälä
2019-09-26 19:11 ` Ville Syrjälä
2019-09-27 8:56 ` Maarten Lankhorst
2019-09-27 14:41 ` Ville Syrjälä
2019-09-27 15:00 ` Ville Syrjälä
2019-09-20 11:42 ` [PATCH 17/23] drm/i915: Add intel_update_bigjoiner handling Maarten Lankhorst
2019-09-20 11:42 ` [PATCH 18/23] drm/i915: Disable FBC in bigjoiner configuration Maarten Lankhorst
2019-09-20 11:42 ` [PATCH 19/23] drm/i915: Prepare atomic plane check for bigjoiner planes Maarten Lankhorst
2019-09-20 11:42 ` [PATCH 20/23] drm/i915: Make prepare_plane_fb() work with " Maarten Lankhorst
2019-09-20 11:42 ` [PATCH 21/23] drm/i915: Make sure watermarks work correctly with bigjoiner as well Maarten Lankhorst
2019-09-20 11:42 ` [PATCH 22/23] drm/i915: Add debugfs dumping for bigjoiner Maarten Lankhorst
2019-09-20 11:42 ` [PATCH 23/23] HAX to make it work on the icelake test system Maarten Lankhorst
2019-09-20 14:52 ` ✗ Fi.CI.CHECKPATCH: warning for series starting with [01/23] drm/i915/dp: Fix dsc bpp calculations, v2 Patchwork
2019-09-20 14:59 ` ✗ Fi.CI.SPARSE: " Patchwork
2019-09-20 15:16 ` ✓ Fi.CI.BAT: success " Patchwork
2019-09-20 16:38 ` [Intel-gfx] [PATCH 01/23] " Ville Syrjälä
2019-09-23 12:52 ` [PATCH] drm/i915/dp: Fix dsc bpp calculations, v3 Maarten Lankhorst
2019-09-23 13:03 ` Ville Syrjälä
2019-09-23 13:03 ` Ville Syrjälä
2019-09-23 14:49 ` [PATCH] drm/i915/dp: Fix dsc bpp calculations, v4 Maarten Lankhorst
2019-09-23 14:50 ` Maarten Lankhorst
2019-09-23 14:57 ` Ville Syrjälä
2019-09-23 15:56 ` Manasi Navare
2019-09-23 15:56 ` [Intel-gfx] " Ville Syrjälä
2019-09-23 14:22 ` [Intel-gfx] [PATCH] drm/i915/dp: Fix dsc bpp calculations, v3 kbuild test robot
2019-09-23 14:22 ` kbuild test robot
2019-09-23 15:53 ` Manasi Navare
2019-09-21 12:06 ` [PATCH 01/23] drm/i915/dp: Fix dsc bpp calculations, v2 Sasha Levin
2019-09-21 15:22 ` ✗ Fi.CI.IGT: failure for series starting with [01/23] " Patchwork
2019-09-23 10:43 ` Maarten Lankhorst
2019-09-23 19:10 ` ✗ Fi.CI.BUILD: failure for series starting with drm/i915/dp: Fix dsc bpp calculations, v4. (rev3) Patchwork
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