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author | Dave Airlie <airlied@redhat.com> | 2014-05-02 14:02:48 +1000 |
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committer | Dave Airlie <airlied@redhat.com> | 2014-07-22 11:20:26 +1000 |
commit | 0e32b39ceed665bfa4a77a4bc307b6652b991632 (patch) | |
tree | 7d94f2fdb7d3c1e8c920193b0a067a0487f27a34 /drivers/gpu/drm/i915/i915_dma.c | |
parent | d05410f9a450df8848196ce87f1c9ef14ff89cb5 (diff) | |
download | op-kernel-dev-0e32b39ceed665bfa4a77a4bc307b6652b991632.zip op-kernel-dev-0e32b39ceed665bfa4a77a4bc307b6652b991632.tar.gz |
drm/i915: add DP 1.2 MST support (v0.7)
This adds DP 1.2 MST support on Haswell systems.
Notes:
a) this reworks irq handling for DP MST ports, so that we can
avoid the mode config locking in the current hpd handlers, as
we need to process up/down msgs at a better time.
Changes since v0.1:
use PORT_PCH_HOTPLUG to detect short vs long pulses
add a workqueue to deal with digital events as they can get blocked on the
main workqueue beyong mode_config mutex
fix a bunch of modeset checker warnings
acks irqs in the driver
cleanup the MST encoders
Changes since v0.2:
check irq status again in work handler
move around bring up and tear down to fix DPMS on/off
use path properties.
Changes since v0.3:
updates for mst apis
more state checker fixes
irq handling improvements
fbcon handling support
improved reference counting of link - fixes redocking.
Changes since v0.4:
handle gpu reset hpd reinit without oopsing
check link status on HPD irqs
fix suspend/resume
Changes since v0.5:
use proper functions to get max link/lane counts
fix another checker backtrace - due to connectors disappearing.
set output type in more places fro, unknown->displayport
don't talk to devices if no HPD asserted
check mst on short irqs only
check link status properly
rebase onto prepping irq changes.
drop unsued force_act
Changes since v0.6:
cleanup unused struct entry.
[airlied: fix some sparse warnings].
Reviewed-by: Todd Previte <tprevite@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_dma.c')
-rw-r--r-- | drivers/gpu/drm/i915/i915_dma.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 6df6506..d335c46 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1717,6 +1717,13 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags) goto out_mtrrfree; } + dev_priv->dp_wq = alloc_ordered_workqueue("i915-dp", 0); + if (dev_priv->dp_wq == NULL) { + DRM_ERROR("Failed to create our dp workqueue.\n"); + ret = -ENOMEM; + goto out_freewq; + } + intel_irq_init(dev); intel_uncore_sanitize(dev); @@ -1792,6 +1799,8 @@ out_gem_unload: intel_teardown_gmbus(dev); intel_teardown_mchbar(dev); pm_qos_remove_request(&dev_priv->pm_qos); + destroy_workqueue(dev_priv->dp_wq); +out_freewq: destroy_workqueue(dev_priv->wq); out_mtrrfree: arch_phys_wc_del(dev_priv->gtt.mtrr); @@ -1892,6 +1901,7 @@ int i915_driver_unload(struct drm_device *dev) intel_teardown_gmbus(dev); intel_teardown_mchbar(dev); + destroy_workqueue(dev_priv->dp_wq); destroy_workqueue(dev_priv->wq); pm_qos_remove_request(&dev_priv->pm_qos); |