On MTL ChromeOS boards, during AI based video conference, we were
observing a lot of overhead from invalidations. Upon debug, it was found
that we were using clflush in this function and that isn't efficient.
With this change, while executing compute workloads like zoo models, we
are getting ~25% performance improvements in a best case scenario.
Rework:
* Jordan: Call intel_clflushopt_range() rather than
__builtin_ia32_clflushopt() because intel_mem.c is not compiled
with -mclflushopt.
Backport-to: 24.1 24.2
Signed-off-by: Sushma Venkatesh Reddy <sushma.venkatesh.reddy@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30238>
On some low-end GPUs (e.g. BXE/BXM series), the Imagination proprietary
Vulkan driver do not implement geometryShader feature, which is required
by Zink currently to smoothen lines. In addition, these vulkan drivers
shipped are usually not robust enough to run Zink at all, and
frequently fail with crashes.
Reject these drivers.
Signed-off-by: Icenowy Zheng <uwu@icenowy.me>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30280>
Despite its name, egl_dri2 works under plain DRI without DRI2, and the
old autotools build system built it when $enable_dri = yes, with no
check for DRI2. This fixes the build for GNU/Hurd, which supports DRI,
but doesn't have DRM and thus no DRI2 support.
Cc: mesa-stable
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/587>
Note that this bug leading to GPU hangs hasn't been reproduced on GL
so far, workaround is mainly included for completeness.
Fixes: 57decad976 ("intel/xehp: Enable TBIMR by default.")
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30031>
This implements an undocumented workaround for a hardware bug that
affects draw calls with a pixel shader that has 0 push constant cycles
when TBIMR is enabled, which has been seen to lead to a hang with
Fallout 3 and Metal Gear Rising Revengeance. This hardware bug has
been reported as HSDES#22020184996 which is still pending a resolution
by the hardware team. However since this workaround found empirically
has been confirmed to fix the issue reliably and it's relatively
harmless it seems worth checking in already even though no final W/A
number is available nor has the W/A json file been updated.
To avoid the issue we simply pad the push constant payload to be at
least 1 register. This is enabled via a brw_wm_prog_key since the
driver needs to be in agreement with the compiler on whether the dummy
push constant cycle is present, and it can be avoided in cases where
the driver knows that TBIMR will be disabled (e.g. for BLORP).
Related: https://gitlab.freedesktop.org/mesa/mesa/-/issues/10728
Related: https://gitlab.freedesktop.org/mesa/mesa/-/issues/11399
Fixes: 57decad976 ("intel/xehp: Enable TBIMR by default.")
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30031>
In updates (not post at the time of this writing) to !29884, a change
caused many spill and fill regressions shader for OpenGL Tomb
Raider. While looking at that shader, I noticed some odd patterns. I
initially added these patterns to counteract the regressions caused by
the other change, but I had no luck. On Ice Lake... this cuts 99
instructions from the shader.
shader-db:
All Intel platforms had simliar results. (Meteor Lake shown)
total instructions in shared programs: 19732341 -> 19732295 (<.01%)
instructions in affected programs: 1744 -> 1698 (-2.64%)
helped: 1 / HURT: 0
total cycles in shared programs: 916273716 -> 916273068 (<.01%)
cycles in affected programs: 14266 -> 13618 (-4.54%)
helped: 1 / HURT: 0
fossil-db:
All Intel platforms had similar results. (Meteor Lake shown)
Totals:
Instrs: 151519575 -> 151519393 (-0.00%)
Cycle count: 17208402120 -> 17208246858 (-0.00%); split: -0.00%, +0.00%
Totals from 159 (0.03% of 630198) affected shaders:
Instrs: 51970 -> 51788 (-0.35%)
Cycle count: 11474176 -> 11318914 (-1.35%); split: -1.36%, +0.01%
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30158>
fmin(x, 0.0) must at least be le_zero, and fmax(x, 0.0) be at least be
ge_zero.
shader-db:
All Intel platforms had similar results. (Meteor Lake shown)
total instructions in shared programs: 19733226 -> 19731919 (<.01%)
instructions in affected programs: 196415 -> 195108 (-0.67%)
helped: 615 / HURT: 0
total cycles in shared programs: 916277979 -> 916265288 (<.01%)
cycles in affected programs: 2482535 -> 2469844 (-0.51%)
helped: 346 / HURT: 178
LOST: 2
GAINED: 1
fossil-db:
All Intel platforms had similar results. (Meteor Lake shown)
Totals:
Instrs: 151531355 -> 151519575 (-0.01%); split: -0.01%, +0.00%
Cycle count: 17209372399 -> 17208402120 (-0.01%); split: -0.01%, +0.01%
Max live registers: 32016490 -> 32016514 (+0.00%)
Totals from 4307 (0.68% of 630198) affected shaders:
Instrs: 4179418 -> 4167638 (-0.28%); split: -0.28%, +0.00%
Cycle count: 1063492212 -> 1062521933 (-0.09%); split: -0.24%, +0.15%
Max live registers: 359250 -> 359274 (+0.01%)
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30158>
