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This reverts commit 13943fe5823c45759091c1a1f487a4abe377421e.
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- intel_crt seems the only one to provide it, so init it there.
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We won't get a PFIFO context switch when the same channel ID is recreated if
the hw still thinks the channel is already active, which causes fun issues.
Should allow X to be stopped and started without tearing down the entire
card state in lastclose().
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This avoids seeing garbage from engine setup etc before X gets around
to pointing the CRTCs at a new scanout buffer. Not actually a noticable
problem before G80 as PRAMIN is forced to the end of VRAM by the hardware
already.
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We won't get a PFIFO context switch when the same channel ID is recreated if
the hw still thinks the channel is already active, which causes fun issues.
Should allow X to be stopped and started without tearing down the entire
card state in lastclose().
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With the interrupt enable/disable using only the mask register, it was wrong
to use the enable register to detect which pipes had vblank detection
turned on. Also, as we keep a local copy of the mask register around, and
MSI machines smack the hardware during the interrupt handler, it is more
efficient and more correct to use the local copy.
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This shares common code sequences for managing the interrupt register bits
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Leftover dev_priv from the move of the suspend/resume code into shared-core.
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It would be nice if one day the DRM driver was the canonical source for
register definitions and core macros. To that end, this patch cleans things up
quite a bit, removing redundant definitions (some with different names
referring to the same register) and generally tidying up the header file.
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A mis-spelled config option (was it spelled that way in the past?)
eliminated kmap_atomic_prot_pfn from core DRM.
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I915_GEM_DOMAIN_CPU is very expensive to wait for -- it generally requires
clflushing the frame buffer.
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Clean up queues, free objects. On the next entervt, unmark the hardware to
let the user try again (presumably after resetting the chip). Someday we'll
automatically recover...
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Pin/copy_from_user/unpin through the GTT to eliminate clflush costs.
Benchmarks say this helps quite a bit.
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A mis-spelled config option (was it spelled that way in the past?)
eliminated kmap_atomic_prot_pfn from core DRM.
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- This avoids returning with a mode count of 0, thus not allocating space for the 2nd ioctl.
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I915_GEM_DOMAIN_CPU is very expensive to wait for -- it generally requires
clflushing the frame buffer.
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While debugging the 915, I tried this trick there and accidentally left it
set.
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Clean up queues, free objects. On the next entervt, unmark the hardware to
let the user try again (presumably after resetting the chip). Someday we'll
automatically recover...
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Pin/copy_from_user/unpin through the GTT to eliminate clflush costs.
Benchmarks say this helps quite a bit.
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still not sure which works best on which hardware; this will make it easier
to experiment.
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We depend on the VM fully now for memory protection, separate DMA objects
for VRAM and GART are unneccesary. However, until the next interface break
(soon) a client can't depend on the objects being the same and must still
call NV_OBJ_SET_DMA_* methods appropriately.
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- I made it consistent with recent kernel fb code (maybe this is older bugged code?)
- Still i don't use this and i should leave it to others.
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This avoids seeing garbage from engine setup etc before X gets around
to pointing the CRTCs at a new scanout buffer. Not actually a noticable
problem before G80 as PRAMIN is forced to the end of VRAM by the hardware
already.
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See bug 14289
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Noting that the interrupt mask register was more reliable than the interrupt
enable register for managing interrupts in user_irq_on/user_irq_off, this
patch replaces the remaining IER frobbing with IMR instead.
The test which exposes IER related failures is:
$ glxgears & glxgears & glxgears
(reposition the glxgears windows away from the upper left corner)
$ while :; do x11perf -rect100 -reps 800 -repeat 1; sleep 1; done &
$ while :; do runoa; runet; done &
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This tracks most of the interrupt-related status, including the
interrupt registers in the chip and the sequence number variables.
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Another patch adds this to a /proc/dri file for debugging and monitoring.
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