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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2011-03-29 10:40:27 +0100 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2011-05-10 13:56:44 -0700 |
| commit | 2c7111dbaec72b01c804afb8ad77c6c7523986fd (patch) | |
| tree | 28cea6c8bd6049343992bddc28417d20cdbc5833 /drivers/gpu/drm/i915/intel_display.c | |
| parent | 9c23f7fc4cef14b46830b7f9eb0dc1b2d6f55d4d (diff) | |
| download | talos-op-linux-2c7111dbaec72b01c804afb8ad77c6c7523986fd.tar.gz talos-op-linux-2c7111dbaec72b01c804afb8ad77c6c7523986fd.zip | |
drm/i915: Disable all outputs early, before KMS takeover
If the outputs are active and continuing to access the GATT when we
teardown the PTEs, then there is a potential for us to hang the GPU.
The hang tends to be a PGTBL_ER with either an invalid host access or
an invalid display plane fetch.
v2: Reorder IRQ initialisation to defer until after GEM is setup.
Reported-by: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Daniel Vetter <daniel.vetter@ffwll.ch> (855GM)
Tested-by: Pekka Enberg <penberg@kernel.org>
# note that this doesn't fix the underlying problem of the
PGTBL_ER and pipe underruns being reported immediately upon
init on his 965GM MacBook
Reported-and-tested-by: Rick Bramley <richard.bramley@hp.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=35635
Reported-and-tested-by: Zdenek Kabelac <zdenek.kabelac@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=36048
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index e99ae3bd1064..a38fb3998ad1 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -6627,6 +6627,9 @@ static void intel_setup_outputs(struct drm_device *dev) } intel_panel_setup_backlight(dev); + + /* disable all the possible outputs/crtcs before entering KMS mode */ + drm_helper_disable_unused_functions(dev); } static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb) @@ -7573,13 +7576,12 @@ void intel_modeset_init(struct drm_device *dev) intel_crtc_init(dev, i); } + /* Just disable it once at startup */ + i915_disable_vga(dev); intel_setup_outputs(dev); intel_enable_clock_gating(dev); - /* Just disable it once at startup */ - i915_disable_vga(dev); - if (IS_IRONLAKE_M(dev)) { ironlake_enable_drps(dev); intel_init_emon(dev); @@ -7588,12 +7590,15 @@ void intel_modeset_init(struct drm_device *dev) if (IS_GEN6(dev)) gen6_enable_rps(dev_priv); - if (IS_IRONLAKE_M(dev)) - ironlake_enable_rc6(dev); - INIT_WORK(&dev_priv->idle_work, intel_idle_update); setup_timer(&dev_priv->idle_timer, intel_gpu_idle_timer, (unsigned long)dev); +} + +void intel_modeset_gem_init(struct drm_device *dev) +{ + if (IS_IRONLAKE_M(dev)) + ironlake_enable_rc6(dev); intel_setup_overlay(dev); } |
