34 lines
1.1 KiB
Diff
34 lines
1.1 KiB
Diff
From b4403874d7df4aa6650da412b707c17754a6e105 Mon Sep 17 00:00:00 2001
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From: Ben Skeggs <bskeggs@redhat.com>
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Date: Tue, 17 Aug 2010 14:20:29 +1000
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Subject: [PATCH] drm-nouveau-nv50-crtc-update-delay
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rhbz#614552
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Adds a short delay before doing framebuffer-only CRTC updates. Fixes
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an issue that effects some cards (Quadro NVS295/FX580) where two of
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these updates in quick succession hangs the display engine.
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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---
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drivers/gpu/drm/nouveau/nv50_crtc.c | 3 +++
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1 files changed, 3 insertions(+), 0 deletions(-)
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diff --git a/drivers/gpu/drm/nouveau/nv50_crtc.c b/drivers/gpu/drm/nouveau/nv50_crtc.c
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index 5d11ea1..937adfd 100644
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--- a/drivers/gpu/drm/nouveau/nv50_crtc.c
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+++ b/drivers/gpu/drm/nouveau/nv50_crtc.c
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@@ -521,6 +521,9 @@ nv50_crtc_do_mode_set_base(struct drm_crtc *crtc, int x, int y,
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nouveau_bo_unpin(ofb->nvbo);
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}
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+ if (update)
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+ mdelay(1);
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+
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nv_crtc->fb.offset = fb->nvbo->bo.offset - dev_priv->vm_vram_base;
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nv_crtc->fb.tile_flags = fb->nvbo->tile_flags;
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nv_crtc->fb.cpp = drm_fb->bits_per_pixel / 8;
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--
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1.7.2
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