Skip to content

cloud-kernel
cloud-kernel

openanolis / cloud-kernel
1 年多 前同步成功

通知 160
Star 36
Fork 7
cloud-kernel
cloud-kernel
切换分支/标签
  1. 05 6月, 2014 7 次提交
    • D
      drm/i915: Inline ilk/gen8_irq_reset · 723761b8
      由 Daniel Vetter 提交于 
      No point in having this indirection.
Reviewed-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      723761b8
    • D
      drm/i915: Disable gpu reset on i965g/gm · 85ab3998
      由 Daniel Vetter 提交于 
      Ville figured out that it needs a full display reset since apparently
a lot more goes down than just the GT. Until that's address it's
better to just diable gpu reset.
Reviewed-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      85ab3998
    • D
      drm/i915: Fix up fifo underrun tracking, take N · 2ae2a50c
      由 Daniel Vetter 提交于 
      So apparently this is tricky.

We need to consider:
- We start out with all the hw enabling bits disabled, both the
  individual fifo underrun interrupts and the shared display error
  interrupts masked. Otherwise if the bios config is broken we'll blow
  up with a NULL deref in our interrupt handler since the crtc
  structures aren't set up yet at driver load time.
- On gmch we need to mask fifo underruns on the sw side, so always
  need to set that in sanitize_crtc for those platforms.
- On other platforms we try to set the sw tracking so that it reflects
  the real state. But since a few platforms have shared bits we must
  _not_ disable fifo underrun reporting. Otherwise we'll never enable
  the shared error interrupt.

This is the state before out patch, but unfortunately this is not good
enough. But after a suspend resume operation this is broken:
1. We don't enable the hw interrupts since the same code runs on
resume as on driver load.
2. The fifo underrun state adjustments we do in sanitize_crtc doesn't
fire on resume since (except for hilarious firmware) all pipes are off
at that point. But they also don't hurt since the subsequent crtc
enabling due to force_restore will enable fifo underruns.

Which means when we enable fifo underrun reporting we notice that the
per-crtc state is already correct and short-circuit everthing out. And
the interrupt doesn't get enabled.

A similar problem would happen if the bios doesn't light up anything
when the driver loads. Which is exactly what happens when we reload
the driver since our unload functions disables all outputs.

Now we can't just rip out the short-circuit logic and unconditionally
update the fifo underrun reporting interrupt masking: We have some
checks for shared error interrupts to catch issues that happened when
the shared error interrupt was disabled.

The right fix is to push down this logic so that we can always update
the hardware state, but only check for missed fifo underruns on a real
enabled->disabled transition and ignore them when we're already
disabled.

On platforms with shared error interrupt the pipe CRC interrupts are
grouped together with the fifo underrun reporting this fixes pipe CRC
support after suspend and driver reloads.

Testcase: igt/kms_pipe_crc_basic/suspend-*
Reviewed-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      2ae2a50c
    • D
      drm/i915: Add fifo underrun reporting state to debugfs · cace841c
      由 Daniel Vetter 提交于 
      On platforms with shared interrupt enable bits (which are shared even
with the pipe CRC logic) there's some tricky corner cases. Add
information to make debugging those easier.
Reviewed-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      cace841c
    • R
      drm: add drm_fb_helper_restore_fbdev_mode_unlocked() · 5ea1f752
      由 Rob Clark 提交于 
      All drm_fb_helper_restore_fbdev_mode() call sites, save one, do the same
locking.  Simplify this into drm_fb_helper_restore_fbdev_mode_unlocked().
Signed-off-by: NRob Clark <robdclark@gmail.com>
Reviewed-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: NDave Airlie <airlied@redhat.com>
      5ea1f752
    • R
      drm: convert crtc and connection_mutex to ww_mutex (v5) · 51fd371b
      由 Rob Clark 提交于 
      For atomic, it will be quite necessary to not need to care so much
about locking order.  And 'state' gives us a convenient place to stash a
ww_ctx for any sort of update that needs to grab multiple crtc locks.

Because we will want to eventually make locking even more fine grained
(giving locks to planes, connectors, etc), split out drm_modeset_lock
and drm_modeset_acquire_ctx to track acquired locks.

Atomic will use this to keep track of which locks have been acquired
in a transaction.

v1: original
v2: remove a few things not needed until atomic, for now
v3: update for v3 of connection_mutex patch..
v4: squash in docbook
v5: doc tweaks/fixes
Signed-off-by: NRob Clark <robdclark@gmail.com>
Reviewed-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: NDave Airlie <airlied@redhat.com>
      51fd371b
    • D
      drm/dp: add a hw mutex around the transfer functions. (v2) · 4f71d0cb
      由 Dave Airlie 提交于 
      This should avoid races between connector probing and HPD
irqs in the future, currently mode_config.mutex blocks this
possibility.
Reviewed-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: NDave Airlie <airlied@redhat.com>
      4f71d0cb
  3. 04 6月, 2014 21 次提交
  5. 03 6月, 2014 6 次提交
  7. 02 6月, 2014 6 次提交