Most users of nir_foreach_function actually want the nir_function_impl, not the
nir_function, and want to skip empty functions (though some graphics-specific
passes sometimes fail to do that part). Add a nir_foreach_function_impl macro
to make that case more ergonomic.
nir_foreach_function_impl(impl, shader) {
...
foo(impl)
}
is equivalent to:
nir_foreach_function(func, shader) {
if (func->impl) {
...
foo(func->impl);
}
}
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23807>
(cherry picked from commit 19daa9283c)
Indeed, util_blitter_clear() requires a call to
util_blitter_save_fragment_constant_buffer_slot(),
but most other blitter functions do not.
For instance, this issue is triggered with:
"piglit/bin/object-namespace-pollution glDrawPixels buffer -auto -fbo"
while setting GALLIUM_REFCNT_LOG=refcnt.log.
Fixes: 03bc7503d4 ("radeonsi: save the fs constant buffer to the util blitter context")
Signed-off-by: Patrick Lerda <patrick9876@free.fr>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23856>
(cherry picked from commit 80ccc3f822)
There is no mention in spec about subtract one of the number of
threads, also Iris and blorp code don't subtract.
Alchemist PRMs: Volume 2a: Command Reference: Instructions: CFE_STATE: Maximum Number of Threads:
Normally set to the maximum number of threads: (# EUs) * (# threads/EU)
Cc: mesa-stable
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Rohan Garg <rohan.garg@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23973>
(cherry picked from commit c142736f52)
If a then/else block ends in a jump, the phi nodes do not necessarily
have to reference the always taken branch because they are dead code.
Avoid crashing in this case by only rewriting phis, if the block does
not end in a jump.
cc: mesa-stable
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23150>
(cherry picked from commit e379b9ad8c)
1. Always calculate when asked. This is the sort of optimization that just
introduces bugs. Like one I hit when shuffling register indices around with
the register access changes.
2. Ask before using in RA.
3. Account for precoloured blend inputs.
Small shader-db hit, didn't investigate too much.
total instructions in shared programs: 1518017 -> 1518168 (<.01%)
instructions in affected programs: 2895 -> 3046 (5.22%)
helped: 0
HURT: 24
Instructions are HURT.
total bundles in shared programs: 646756 -> 646782 (<.01%)
bundles in affected programs: 1119 -> 1145 (2.32%)
helped: 1
HURT: 19
Bundles are HURT.
total quadwords in shared programs: 1133694 -> 1133728 (<.01%)
quadwords in affected programs: 1736 -> 1770 (1.96%)
helped: 0
HURT: 20
Quadwords are HURT.
total registers in shared programs: 90596 -> 90612 (0.02%)
registers in affected programs: 108 -> 124 (14.81%)
helped: 0
HURT: 16
Registers are HURT.
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Cc: mesa-stable
Reviewed-by: Italo Nicola <italonicola@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23769>
(cherry picked from commit 23010acc10)
this fixes the refcount for the separate shader program to not have a leaked ref
and then fixes the owned program to have the expected number of refs
this happened to work some of the time before because there was an arbitrary unref
in replace_separable_prog(), but this shouldn't have been necessary
Fixes: e3b746e3a3 ("zink: use GPL to handle (simple) separate shader objects")
fixes#9274
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23888>
(cherry picked from commit 4e38061643)
I've recently learned that this is necessary to get
correct results from divergence analysis.
No Fossil DB stats changes on GFX10.3.
Note, when backporting this patch to stable, make sure
the call to nir_convert_to_lcssa is before nir_divergence_analysis,
which may be located in a different place in the stable branch.
Cc: mesa-stable
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23946>
(cherry picked from commit ddeabcc19b)
On Alchemist, the FF_MODE2 documentation says that we must set the
FF_MODE2 timer values for GS and HS to 224. The hardware performance
tuning guide also recommends setting the TDS timer to 4.
On Tigerlake, i915 applies workarounds to set the GS timer to 224
(failing to do so can cause HS/DS unit hangs), and the TDS timer to 4
(for performance). It doesn't currently apply a HS timer there, and
I'm not sure if it's strictly necessary, but given that Alchemist
needed it, and the other two settings matched, let's assume that it
ought to match as well.
Unfortunately, there has been a bug in the i915 workarounds
infrastructure for non-masked context registers where writing one
field of the register zeroes out all the others. So, I believe the
Tigerlake TDS timer value of 4 isn't being applied correctly there,
though the register is also not readable on that platform which
makes it hard to verify. So, this may also speed up tessellation.
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/9233
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Cc: mesa-stable
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23839>
(cherry picked from commit 1b3669a1ed)
This enables L3 partial write merging for a number of cases that seem
to be getting accidentally disabled by the kernel, which was causing a
serious performance bottleneck on DG2 and MTL platforms. The
"Compressible Partial Write Merge Enable", "Coherent Partial Write
Merge Enable" and "Cross-Tile Partial Write Merge Enable" bits in
L3SQCREG5 were expected to be enabled by default (and confusingly,
they even read off as enabled if you ran 'intel_reg read 0xb158' on an
idle system), but they are getting clobbered during 3D context
initialization by an i915 workaround.
Enabling L3 partial write merging of compressible surfaces in
particular seems to increase rendering fillrate by over 3x in some
cases (e.g. the
"VulkanFillRate/FillRateGPU/resolution:1[0-3]/format:*/blend:0"
fillrate-bound microbenchmarks). Significant improvements can also be
reproduced in most real-world workloads we've tested so far,
e.g. Counter Strike GO improves by ~11%, Shadow Of the Tomb Raider
improves by ~5.5%, and AztecRuins-VK improves by ~6.5% on DG2-512 --
Thanks a lot to Caleb Callaway for these figures. No regressions have
been observed so far.
Even though this patch might strike as surprisingly simple for such a
large payoff, it's the result of Felix DeGrood and I trying to
root-cause the rendering performance gap of DG2 on Linux vs Windows on
and off during the last year, and some of the OA statistics captured
by Felix early this month were greatly helpful for me to connect the
last few dots, so Felix deserves a big chunk of the credit for this
work.
Cc: mesa-stable
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23783>
(cherry picked from commit 427fee3507)
