Rejoice! We have found a trick to make 830gm/845g stable at long last.
Ever since the switch to GEM and dynamic video memory, those early
second generation chipsets have been plagued by instability. The lack of
flushing cachelines from the CPU to GMCH was eventually solved by using
an undocmented bit, but 830/845 were still hanging under memory pressure.
These deaths were all due to garbage finding its way into the command
streamer, and they go away if we take a leaf out of the original driver
and never reuse those pages for anything else. So for the first time
ever, I have been able to complete running the test suite on an 845g,
even whilst thrashing the page and buffer caches!
-Chris
* Run the SF stage as single-threaded on gen4 to workaround a few issues
https://bugs.freedesktop.org/show_bug.cgi?id=57410
* Keep the scanout SURFACE_STATE separate to avoid overriding its
memory access control on gen6/7 (i.e. writes to the scanout need to
be kept out of the render cache)
* Tune batch flushing after an operation to an exported surface under a
compositor.
* Make sure the source is on the CPU for inplace composition of trapezoids
using the CPU
https://bugs.freedesktop.org/show_bug.cgi?id=56825
* Immediately flush in the block hander after a split batch to reduce
latency between the two halves of an operation.
https://bugs.freedesktop.org/show_bug.cgi?id=51718
* Install a fallback config if we fail to install the desired config
at VT switch (i.e. booting, after resume with 3 incompatible pipes on
Ivybridge)
* Pin batches to avoid CS incoherence on 830/845
https://bugs.freedesktop.org/show_bug.cgi?id=26345
Chris Wilson (53):
sna: Tidy addition of fake GTF modes for panels
sna/gen4: Avoid emitting URB_FENCE across a cache-line
sna/gen4: Remove unused CC viewport
sna/gen4: Special case solids through the general vertex emitter
sna/gen4: Workaround render corruption with multiple SF threads
sna/gen6+: Cache the scanout targets separately to avoid override PTE
caching
sna: Assume that future hardware only gets more flexible
sna: Don't disable CPU bo if supported on unknown hw
Refactor the common probe methods for scrn construction
sna/gen4+: Add common glyph-to-dst emitters
Fix compilation of UMS probe following 13f47008ec
Remove the default log message
sna: Mark proxies as dirty on first relocation
sna: Only flush at the low apeture watermark if idle
sna: Only flush before adding fresh surfaces to the batch
sna: Only inspect the target ring for busyness
sna: Convert the ring from BLT/3D to the internal index for
kgem_ring_is_idle()
sna: Flush upon change of target if GPU is idle
sna: Replace remaining kgem_is_idle() with kgem_ring_is_idle()
sna/gen4+: Refine test for preferring GPU spans
sna: Move source to CPU prior to referencing for inplace trapezoids
sna/sprite: Add a DBG to report whether the kernel supports sprites
sna: Immediately flush a split batch
sna: Compromise and only flush a split batch if writing to scanout
sna: Avoid reusing the same 'busy' bit for two different meanings.
sna: Try installing a fallback config on VT enter in case full desiredMode
fails
sna/dri: Only special case 'divisor && msc-passed' for
immediate flipping
sna/dri: Disable name exchanges for SwapBuffers
sna/dri: Query current msc before use
sna/dri: Fix handling of current_msc > target_msc
sna/gen4: Use the single-threaded SF w/a for spans as well
sna/gen3+: Use nearest for unscaled videos
sna/gen2: STIPPLE requires an argument
sna: Pin some batches to avoid CS incoherence on 830/845
sna: Fix the error path in kgem_init_pinned_batches() to use the right
iter
sna: Improve the initialisation failure path for pinned batches
sna: Only flush the batch after an actual relocation
sna: Fix typo for 830/845 gen
sna: Fix up BLT overwrite detection to use target_handle
sna/gen2: Align surface sizes to an even tile
sna/gen2: Program solid mask using the DIFFUSE component
sna/gen3: Remove incorrect optimisation of an opaque source for CA
sna/gen2: Assertions
sna/gen2: Initialise channel->is_affine for solid
sna/gen2: Reorder reuse_source() to avoid NULL dereference for solids
sna/gen3: Remove stray setting of vertex_start
sna/gen3: Don't combine primitives if beginning a ca 2-pass
sna/gen2+: Experiment with not forcing migration to GPU after CPU
rasterisation
sna: Reduce fence watermarks
sna/dri: Store and check size of front/back bo attached to a DRI2 drawable
sna/dri: Honour TripleBuffer Option
sna/dri: Fallback to a blit after a failed flip
2.20.16 release
Jesse Barnes (1):
dri2: don't schedule a flip prematurely at ScheduleSwap time
git tag: 2.20.16
http://xorg.freedesktop.org/archive/individual/driver/xf86-video-intel-2.20.16.tar.bz2
MD5: bff3599b51e44c43c4213cb8d04fa13d xf86-video-intel-2.20.16.tar.bz2
SHA1: 70f8aba9b0e603276380df6c80a796fa3d7faf8d xf86-video-intel-2.20.16.tar.bz2
SHA256: 308646d1d4b07e5c581cd7cca133b0e3410a1a3911a58d7d49b8ea106b64d0ba
xf86-video-intel-2.20.16.tar.bz2
http://xorg.freedesktop.org/archive/individual/driver/xf86-video-intel-2.20.16.tar.gz
MD5: 87190671c5bdc2606cb9ca99406c660a xf86-video-intel-2.20.16.tar.gz
SHA1: 1ae6c0ed2a4b586159019b2c321dc1e18ca13d40 xf86-video-intel-2.20.16.tar.gz
SHA256: 5b278c5bbdc27d2aef3e0e87625da83163551052aa7d257525f4919e0c0d91ef
xf86-video-intel-2.20.16.tar.gz
--
Chris Wilson, Intel Open Source Technology Centre
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