Comparisons which produce 32-bit boolean results (0 or 0xFFFFFFFF)
but operate on 16-bit types would first generate a CMP instruction
with W or HF types, before expanding it out. This CMP is a partial
write, which leads us to think the register may contain some prior
contents still. When placed in a loop, this causes its live range
to extend beyond its real life time.
Mark the register with UNDEF first so that we know that no prior
contents exist and need to be preserved.
This affects:
flt32, fge32, feq32, fneu32, ilt32, ult32, ige32, uge32, ieq32, ine32
On one of Cyberpunk 2077's most complex compute shaders, this reduces
the maximum live registers from 696 to 537 (22.8%). Together with the
next patch, Cyberpunk's spills and fills are cut by 10.23% and 9.19%,
respectively.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22835>
This value depends on the per-sample value which can be unknown at
compile time with graphics pipeline libraries. So we need to have this
dynamic has well and pick the right value when generating the
3DSTATE_PS/3DSTATE_WM packet.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Fixes: d8dfd153c5 ("intel/fs: Make per-sample and coarse dispatch tri-state")
Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22728>
When using INTEL_DEBUG=bat, INTEL_DEBUG_BATCH_FRAME_START and
INTEL_DEBUG_BATCH_FRAME_STOP can limit dumping of batches for
particular frame ranges. Batch dumps are huge. Smart filtering
allows debugging of single frames during game play. Initial
commit to debug infrastructure.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22564>
This change makes usage bits verification closer to the Vulkan spec.
i.e. VK_IMAGE_CREATE_MUTABLE_FORMAT_BIT does not always require all formats
to support all the requested usage bits.
Also, VK_IMAGE_CREATE_EXTENDED_USAGE_BIT, when combined with
VK_IMAGE_CREATE_MUTABLE_FORMAT_BIT can relax the requirements for the
usage supported by the original image format.
v2: Removed strict verification of the format_list_info formats usage
per chadversary's suggestion. Other minor style/comments tweaks.
v3: Added checking of all compatible formats when
VK_IMAGE_CREATE_MUTABLE_FORMAT_BIT and VK_IMAGE_CREATE_EXTENDED_USAGE_BIT
are specified, but no list of possible formats was given.
v4: Add VK_IMAGE_CREATE_BLOCK_TEXEL_VIEW_COMPATIBLE_BIT handling.
Cc: 22.2 <mesa-stable>
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/6031
Signed-off-by: Sviatoslav Peleshko <sviatoslav.peleshko@globallogic.com>
Reviewed-by: Ivan Briano <ivan.briano@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17182>
Instead of doing a slow depth clear, we can do depth fast clear in
vkClearAttachments.
Sascha Willems occlusionquery demo shows more than 2% perf boost with
this series.
On Felix's Tigerlake with the GPU at fixed frequency, this patch
improves performance of RoTR by +0.5%.
v2: (Nanley Chery)
- Clear stencil surface along with depth.
- Check for multilayer resources.
- Lookout for state.attachments.
- Fallback on slow clear for BDW and CHV if conditional rendering
enabled.
- Keep flush in same function.
v3: (Nanley Chery)
- Return immediately after fast clearing.
- Remove unnecessary comment.
v4: (Nanley Chery)
- Add assertion for BLORP_BATCH_NO_EMIT_DEPTH_STENCIL.
- Remove unnecessary local variable.
- Add 3DSTATE_WM_HZ_OP comment.
v5: (Nanley Chery)
- Fix comments.
- Don't take fast depth clear path if BLORP_BATCH_PREDICATE_ENABLE set.
- Refactor code in can_hiz_clear_att.
Signed-off-by: Sagar Ghuge <sagar.ghuge@intel.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20175>
For MTL (verx10 == 125), float64 is supported, but int64 is not.
Therefore we need to lower cluster broadcast using 32-bit int ops.
For gfx12.5+ platforms that support int64, the register regions
used by cluster broadcast aren't supported by the 64-bit pipeline.
On MTL, dEQP-VK.subgroups.clustered.*_double* and
dEQP-VK.subgroups.clustered.*_dvec* were failing to validate the
compiled shader in debug mode, and reportedly gpu-hanging in release
mode.
With this change dEQP-VK.subgroups.clustered.*_double* passed all 48
tests and dEQP-VK.subgroups.clustered.*_dvec* passed all 140 tests on
MTL.
Rework:
* Move from generator to brw_fs_lower_regioning.cpp. (Suggested by
Francisco)
* Apply to verx10 >= 125.. (Suggested by Francisco)
Cc: 23.1 <mesa-stable>
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Marcin Ślusarz <marcin.slusarz@intel.com> (v1)
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22569>
Since there are concerns that the VK_EXT_GPL implementation may have
issues with mesh shading, disable it by default but give users a knob to
turn it on to experiment.
This doesn't automatically enable GPL use in zink, because we lack
extendedDynamicState2PatchControlPoints, but it means that you only need
to set ZINK_DEBUG=gpl and not both env vars.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15637>
With independent sets, we're not able to compute immediate values for
the index at which to read anv_push_constants::dynamic_offsets to get
the offset of a dynamic buffer. This is because the pipeline layout
may not have all the descriptor set layouts when we compile the
shader.
To solve that issue, we insert a layer of indirection.
This reworks the dynamic buffer offset storage with a 2D array in
anv_cmd_pipeline_state :
dynamic_offsets[MAX_SETS][MAX_DYN_BUFFERS]
When the pipeline or the dynamic buffer offsets are updated, we
flatten that array into the
anv_push_constants::dynamic_offsets[MAX_DYN_BUFFERS] array.
For shaders compiled with independent sets, the bottom 6 bits of
element X in anv_push_constants::desc_sets[] is used to specify the
base offsets into the anv_push_constants::dynamic_offsets[] for the
set X.
The computation in the shader is now something like :
base_dyn_buffer_set_idx = anv_push_constants::desc_sets[set_idx] & 0x3f
dyn_buffer_offset = anv_push_constants::dynamic_offsets[base_dyn_buffer_set_idx + dynamic_buffer_idx]
It was suggested by Faith to use a different push constant buffer with
dynamic_offsets prepared for each stage when using independent sets
instead, but it feels easier to understand this way. And there is some
room for optimization if you are set X and that you know all the sets in
the range [0, X], then you can still avoid the indirection. Separate
push constant allocations per stage do have a CPU cost.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15637>
With independent sets, we cannot bake into the shader the binding
table entry of input attachments anymore because that final location
is affected by multiple sets.
We can still access them by looking into the descriptor buffer. This
change enables the image handle to be stored in the descriptor buffer.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15637>
With variable fragment shading rate, the last pre-rasterization stage
is responsible to write the shading rate value.
The current checks is as follow :
If the fragment shader can be dispatched at variable shading rate,
look for the last pre-raster stage to force the write.
We change this to :
If we're the last pre-raster stage, force the write.
That way this works for pre-rasterization shaders compiled without a
fragment shader.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15637>
Kenneth Graunke