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i915_add_request was calling schedule_delayed_work before adding the request
to the list; it makes more sense to do that last.
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In the short-circuit code for the breadcrumb already being new enough, we
need to update the sarea_priv copy of the breadcrumb just as if we had
waited. Otherwise userland error checking will notice that we returned
too early based on its wrong information, and call wait_irq again (leading
to spinning until someone else comes along and updates the sarea_priv).
This bug was hidden when we had interrupt masking disabled, such as in
master, since the interrupt handler would update sarea_priv.
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Thanks to Thomas Hellstrom for catching the issue, no thanks to the kernel
developer who authoritatively told me that they would get restarted on their
own.
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This was insufficient once we started masking interrupts to only when someone
was waiting for them (and would thus retire requests themselves). It was
replaced by the retire_timer.
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We need a version to depend on from the other components that require GEM and
the bufmgr code. Some interfaces will be removed before the 2.4.0 release.
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This fixes a regression from commit d434b64f6a760d85295e32298a9a1f3624ee1b69
which could cause us to fail to wake up for user interrupts if we lost a race.
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We no longer need to use it to protect against shared ringbuffer access.
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Use GEM for ring buffer setup and framebuffer allocation. This means reworking
the hardware status page stuff a bit (just use the basic range allocator for
vram for now) and #ifdef'ing out the TTM & DRI2 code. Works well enough to
load/unload several times and display fbcon on my T61 (though there's still
some unexplained console corruption).
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This reduces the diff from Mesa and reduces the illegibility of what I did.
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This is the create (may want location flags), pread/pwrite/mmap
(performance tuning hints), and set_domain (will 32 bits be enough for
everyone?) ioctls. Left in the generic set are just flink/open/close.
The 2D driver must be updated for this change, and API but not ABI is broken
for 3D. The driver version is bumped to mark this.
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They are not unnecessary since the kernel's the only thing touching the ring.
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Use new GEM based ring buffer initialization. Still need to init GEM & use it
for framebuffer allocation etc.
Conflicts:
shared-core/i915_dma.c
shared-core/i915_drv.h
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This requires that the X Server use the execbuf interface for buffer
submission, as it no longer has direct access to the ring. This is
therefore a flag day for the gem interface.
This also adds enter/leavevt ioctls for use by the X Server. These would
get stubbed out in a modesetting implementation, but are required while
in an environment where the device's state is only managed by the DRM while
X has the VT.
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Passed the compile test; it's ready to ship.
Conflicts:
libdrm/Makefile.am
linux-core/Makefile.kernel
linux-core/drmP.h
linux-core/drm_memrange.c
linux-core/drm_stub.c
shared-core/drm.h
shared-core/i915_dma.c
shared-core/i915_drv.h
shared-core/i915_irq.c
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Port over EDID quirks from X.Org so we can handle more monitors. This meant
adding size info to the drm_display_mode struct, but other than that the
changes were isolated to the DRM EDID handling code (as they should be).
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The driver can know what hardware requires MI_BATCH_BUFFER vs
MI_BATCH_BUFFER_START; there's no reason to let user mode configure this.
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The driver can know what hardware requires MI_BATCH_BUFFER vs
MI_BATCH_BUFFER_START; there's no reason to let user mode configure this.
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Without the user IRQ running constantly, there's no wakeup when the ring
empties to go retire requests and free buffers. Use a 1 second timer to make
that happen more often.
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This goes with the other hardware status page patch.
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Instead of throttling and execbuffer time, have the application ask to
throttle explicitly. This allows the throttle to happen less often, and
without holding the DRM lock.
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Place the buffer reuse links right into the dri_bo_gem object.
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The code was discarding the dri_bo_gem structure and saving only the kernel
handle. This lost the mmap address, causing pain when the next buffer user
wanted to map the buffer.
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I couldn't get the re-allocated HWS to work on my 965GM, so I just gave up
and made it persist across the lifetime of the driver instead.
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framebuffer
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better place to store them.
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A check in drm_sysfs_connector_remove was supposed to allow it to be called
even with unregistered objects, to make cleanup paths a little simpler.
However, device_is_regsitered didn't always seem to return what we thought it
would, so we'd sometimes end up leaving objects lying around rather than
unregistering them.
Fix this situation up by requiring devices to be registered before being
removed. Any problems resulting from this change should be easier to track
down than the alternative (which is leaving kobjects registered after unload).
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This will be used by the X Server for VT switch.
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remove fb callbacks, just probe into the driver to sort it out
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