| Commit message (Collapse) | Author | Age | Files | Lines |
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Unnecessary GRF bank conflicts increase the issue time of ternary
instructions (the overwhelmingly most common of which is MAD) by
roughly 50%, leading to reduced ALU throughput. This pass attempts to
minimize the number of bank conflicts by rearranging the layout of the
GRF space post-register allocation. It's in general not possible to
eliminate all of them without introducing extra copies, which are
typically more expensive than the bank conflict itself.
In a shader-db run on SKL this helps roughly 46k shaders:
total conflicts in shared programs: 1008981 -> 600461 (-40.49%)
conflicts in affected programs: 816222 -> 407702 (-50.05%)
helped: 46234
HURT: 72
The running time of shader-db itself on SKL seems to be increased by
roughly 2.52%±1.13% with n=20 due to the additional work done by the
compiler back-end.
On earlier generations the pass is somewhat less effective in relative
terms because the hardware incurs a bank conflict anytime the last two
sources of the instruction are duplicate (e.g. while trying to square
a value using MAD), which is impossible to avoid without introducing
copies. E.g. for a shader-db run on SNB:
total conflicts in shared programs: 944636 -> 623185 (-34.03%)
conflicts in affected programs: 853258 -> 531807 (-37.67%)
helped: 31052
HURT: 19
And on BDW:
total conflicts in shared programs: 1418393 -> 987539 (-30.38%)
conflicts in affected programs: 1179787 -> 748933 (-36.52%)
helped: 47592
HURT: 70
On SKL GT4e this improves performance of GpuTest Volplosion by 3.64%
±0.33% with n=16.
NOTE: This patch intentionally disregards some i965 coding conventions
for the sake of reviewability. This is addressed by the next
squash patch which introduces an amount of (for the most part
boring) boilerplate that might distract reviewers from the
non-trivial algorithmic details of the pass.
The following patch is squashed in:
SQUASH: intel/fs/bank_conflicts: Roll back to the nineties.
Acked-by: Matt Turner <[email protected]>
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To demonstrate this bug run meson with the options:
-Ddri-drivers= -Dglx=gallium-xlib
Signed-off-by: Dylan Baker <[email protected]>
Reviewed-by: Eric Engestrom <[email protected]>
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Fixes: 5e71efef44b992b5d70b ("meson: Add lmsensors support")
Signed-off-by: Dylan Baker <[email protected]>
Reviewed-by: Eric Engestrom <[email protected]>
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Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104141
Signed-off-by: Eric Engestrom <[email protected]>
Reviewed-by: Dylan Baker <[email protected]>
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src/gallium/winsys/pl111/drm/libpl111winsys.a(pl111_drm_winsys.c.o): In function `pl111_drm_screen_create':
pl111_drm_winsys.c:(.text+0x33): undefined reference to `vc4_drm_screen_create_renderonly'
Signed-off-by: Eric Engestrom <[email protected]>
Reviewed-by: Dylan Baker <[email protected]>
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This patch is ported from RadeonSI and it has two effects.
It fixes a rendering issue which affects F1 2017 and Dawn
of War 3 (Vega only) because LLVM was ending up by generating
the new v_mad_mix_{hi,lo} instructions which appear to be
buggy in some way. Not sure if Mesa is generating something
wrong or if the issue is in LLVM only. Anyway, that explains why
the DOW3 issue can't be reproduced with GL on Vega.
It also improves performance because v_cvt_pkrtz_f16 is faster,
and because I guess the rounding mode behaviour is similar between
GL and VK, we can use it. About performance, it improves Talos
by +3/4% but I don't see any other impacts.
No CTS regressions on Polaris.
Signed-off-by: Samuel Pitoiset <[email protected]>
Reviewed-by: Dave Airlie <[email protected]>
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To avoid any vulkan driver to include the GL mtypes.h. Renamed as
eventually this could be used by drivers not using nir.
v2: remove compiler/spirv/spirv.h from mtypes (Alejandro)
v3: added the definition at compiler/shader_info.h (Jason Ekstrand)
Reviewed-by: Jason Ekstrand <[email protected]>
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At this point dc_job->cache_item_metadata.keys always equals
NULL, so call to free() is useless
Fixes: b86ecea3446 ("util/disk_cache: write cache item metadata to disk")
Signed-off-by: Vadym Shovkoplias <[email protected]>
Reviewed-by: Eric Engestrom <[email protected]>
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In that case, nir_eval_const_opcode() will evaluate the conversion
but as it was using destination's bit_size, the resulting
value was just a cast of the source constant value. By passing the
source's bit size, it does the conversion properly.
Fixes:
dEQP-VK.spirv_assembly.instruction.*.opspecconstantop.*convert*
v2:
- Remove invalid conversion op cases.
Signed-off-by: Samuel Iglesias Gonsálvez <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
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Signed-off-by: Samuel Iglesias Gonsálvez <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
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Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104119
CC: <[email protected]>
CC: Samuel Pitoiset <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
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Allows apps to determine the LLVM version so that they can decide
whether or not to enable workarounds for LLVM issues.
Signed-off-by: Alex Smith <[email protected]>
Cc: "17.2 17.3" <[email protected]>
Reviewed-by: Samuel Pitoiset <[email protected]>
Tested-by: Dieter Nützel <[email protected]>
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This type was used at gl_sync_object, but it is not used anymore.
Reviewed-by: Timothy Arceri <[email protected]>
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We only handled unpacking for GL_DEPTH_STENCIL formats.
Cemu was hitting _mesa_problem() for an unsupported format in
_mesa_unpack_float_32_uint_24_8_depth_stencil_row(), because the
format was depth-only, rather than depth-stencil.
Cc: "13.0 12.0" <[email protected]>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94739
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103966
Reviewed-by: Tapani Pälli <[email protected]>
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This helps avoid compiler warningss in the next commit - everything
was initialized, but it wasn't obvious to static analysis.
Suggested-by: Tapani Pälli <[email protected]>
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This fixes a crash in:
KHR-GL45.enhanced_layouts.xfb_block_stride
Fixes: 0822517936d4 "glsl: add helper to process xfb qualifiers during linking"
Reviewed-by: Kenneth Graunke <[email protected]>
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If an array is accessed within an if block, then currently it is not known
whether the value in the address register is involved in the evaluation of the
if condition, and converting the if condition may actually result in
out-of-bounds array access. Consequently, if blocks that contain indirect array
access should not be converted.
Fixes piglits on r600/BARTS:
spec/glsl-1.10/execution/variable-indexing/
vs-output-array-float-index-wr
vs-output-array-vec3-index-wr
vs-output-array-vec4-index-wr
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104143
Signed-off-by: Gert Wollny <[email protected]>
Cc: <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
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We just pass these in from outside in a constant buffer.
The shader side stores them once they are accessed once.
v2: fix to not use a temp_reg.
Signed-off-by: Dave Airlie <[email protected]>
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This adds support to compute for the resq workarounds (buffer/cube sizes)
Signed-off-by: Dave Airlie <[email protected]>
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Signed-off-by: Dave Airlie <[email protected]>
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Signed-off-by: Dave Airlie <[email protected]>
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This add paths to handle TGSI compute shaders and shader selection.
It also avoids emitting certain things on tgsi paths,
CBs, vertex buffers, config reg init (not required).
v1.1: fix rat mask calc
Signed-off-by: Dave Airlie <[email protected]>
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Signed-off-by: Dave Airlie <[email protected]>
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This appears to cause hangs with compute images. Unless
we can find more specifics, just don't do this for now.
Signed-off-by: Dave Airlie <[email protected]>
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Until now it was part of spirv_to_nir_options. But it will be used on
the implementation of ARB_gl_spirv and ARB_spirv_extensions, and added
to the OpenGL context, as a way to save what SPIR-V capabilities the
current OpenGL implementation supports.
Reviewed-by: Ian Romanick <[email protected]>
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The handle type in the case statement is supposed to be VK_EXTERNAL_-
MEMORY_HANDLE_TYPE_DMA_BUF_BIT_EXT.
Fixes: ab18e8e59b6 ("anv: Implement VK_EXT_external_memory_dma_buf")
Signed-off-by: Fredrik Höglund <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
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The handle type in the case statement is supposed to be VK_EXTERNAL_-
MEMORY_HANDLE_TYPE_DMA_BUF_BIT_EXT.
Fixes: 546e747867c ("radv: Implement VK_EXT_external_memory_dma_buf")
Signed-off-by: Fredrik Höglund <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
Reviewed-by: Samuel Pitoiset <[email protected]>
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`declare_dependency()` takes `compile_args`, not `c_args`.
It was correct in all the other `declare_dependency()` from that commit.
Fixes: 0bbecc5a8548883f76a71 "meson: define driver dependencies"
Signed-off-by: Eric Engestrom <[email protected]>
Reviewed-by: Dylan Baker <[email protected]>
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Fixes: bfe0f3a7027 ("i965: Move PIPE_CONTROL defines and prototypes to
brw_pipe_control.h.")
Signed-off-by: Emil Velikov <[email protected]>
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Currently there are no users of these outside of extensions.c.
Provide some information why they exist and how to use them.
Cc: Jordan Justen <[email protected]>
Signed-off-by: Emil Velikov <[email protected]>
Reviewed-by: Andres Gomez <[email protected]>
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It has been obsolete for years - state it explicitly.
Signed-off-by: Emil Velikov <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>
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gen_BackendPixelRate*.cpp depends on gen_ar_eventhandler.hpp.
Fix missing dependency.
Reviewed-by: Bruce Cherniak <[email protected]>
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and anything that clones these uploaders, like u_threaded_context.
Tested-by: Dieter Nützel <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>
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Tested-by: Dieter Nützel <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>
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Tested-by: Dieter Nützel <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>
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Tested-by: Dieter Nützel <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>
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Tested-by: Dieter Nützel <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>
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Cc: 17.3 <[email protected]>
Tested-by: Dieter Nützel <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>
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Together with "radeonsi: fix the R600_RESOURCE_FLAG_UNMAPPABLE check",
this ensures that sparse buffers are placed in VRAM.
Noticed by an assertion that started triggering with commit d4fac1e1d7
("gallium/radeon: enable suballocations for VRAM with no CPU access")
Fixes KHR-GL45.sparse_buffer_tests.BufferStorageTest in debug builds.
Reviewed-by: Marek Olšák <[email protected]>
Tested-by: Dieter Nützel <[email protected]>
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The flag is on the pipe_resource, not the r600_resource.
I don't see an obvious bug related to this, but it could potentially lead
to suboptimal placement of some resources.
Fixes: a41587433c4d ("gallium/radeon: add R600_RESOURCE_FLAG_UNMAPPABLE")
Reviewed-by: Marek Olšák <[email protected]>
Tested-by: Dieter Nützel <[email protected]>
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SSBO loads were using byte_scattered read messages as they allow
reading 16-bit size components. byte_scattered messages can only
operate one component at a time so we needed to emit as many messages
as components.
But for vec2 and vec4 of 16-bit, being multiple of 32-bit we can use the
untyped_surface_read message to read pairs of 16-bit components using only
one message. Once each pair is read it is unshuffled to return the proper
16-bit components. vec3 case is assimilated to vec4 but the 4th component
is ignored.
16-bit scalars are read using one byte_scattered_read message.
v2: Removed use of stride = 2 on sources (Jason Ekstrand)
Rework optimization using unshuffle 16 reads (Chema Casanova)
v3: Use W and D types insead of HF and F in shuffle to avoid rounding
erros (Jason Ekstrand)
Use untyped_surface_read for 16-bit vec3. (Jason Ekstrand)
v4: Use subscript insead of chaging type and stride (Jason Ekstrand)
Reviewed-by: Jason Ekstrand <[email protected]>
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Currently, we use byte-scattered write messages for storing 16-bit
into an SSBO. This is because untyped surface messages have a fixed
32-bit size.
This patch optimizes these 16-bit writes by combining 2 values (e.g,
two consecutive components aligned with 32-bits) into a 32-bit register,
packing the two 16-bit words.
16-bit single component values will continue to use byte-scattered
write messages. The same will happens when the first consecutive
component is not aligned 32-bits.
This optimization reduces the number of SEND messages used for storing
16-bit values potentially by 2 or 4, which cuts down execution time
significantly because byte-scattered writes are an expensive
operation as they only write a component for message.
v2: Removed use of stride = 2 on sources (Jason Ekstrand)
Rework optimization using shuffle 16 write and enable writes
of 16bit vec4 with only one message of 32-bits. (Chema Casanova)
v3: - Fix coding style (Eduardo Lima)
- Reorganize code to avoid duplication. (Jason Ekstrand)
- Include new comments to explain the length calculations to
fix alignment issues of components. (Jason Ekstrand)
- Fix issues with writemask yz with 16-bit writes. (Jason Ektrand)
v4: (Jason Ekstrand)
- Reorganize 64-bit ssbo-writes to avoid using slots_per_component.
- Comment about why suffle is needed when using byte_scattered_write.
Signed-off-by: Eduardo Lima <[email protected]>
Signed-off-by: Jose Maria Casanova Crespo <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
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Enables SPV_KHR_16bit_storage on gen 8+.
VK_KHR_16bit_storage is enabled for SSBO/UBO using the
VK_KHR_get_physical_device_properties2 functionality to expose
if the extension is supported or not.
v2: update due rebase against master (Alejandro)
v3: (Jason Ekstrand)
- Move this patch up in VK_KHR_16bit_storage series enabling only
storageBuffer16BitAccess and uniformAndStorageBuffer16BitAccess.
- Only expose VK_KHR_16bit_storage on Gen8+
v4: (Jason Ekstrand)
- Squash enable SPV_KHR_16bit_storage into VK_KHR_16bit_storage
enablement for SSBO/UBO.
Signed-off-by: Jose Maria Casanova Crespo <[email protected]>
Signed-off-by: Alejandro Piñeiro <[email protected]>
Signed-off-by: Eduardo Lima Mitev <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
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load_ubo is using 32-bit loads as uniforms surfaces have a 32-bit
surface format defined. So when reading 16-bit components with the
sampler we need to unshuffle two 16-bit components from each 32-bit
component.
Using the sampler avoids the use of the byte_scattered_read message
that needs one message for each component and is supposed to be
slower.
v2: (Jason Ekstrand)
- Simplify component selection and unshuffling for different bitsizes
- Remove SKL optimization of reading only two 32-bit components when
reading 16-bits types.
Reviewed-by: Jose Maria Casanova Crespo <[email protected]>
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This helpers are used to load/store 16-bit types from/to 32-bit
components.
The functions shuffle_32bit_load_result_to_16bit_data and
shuffle_16bit_data_for_32bit_write are implemented in a similar
way than the analogous functions for handling 64-bit types.
v1: Explain need of temporary in shuffle operations. (Jason Ekstrand)
Reviewed-by: Jason Ekstrand <[email protected]>
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Used to enable 16-bit reads at do_untyped_vector_read, that is used on
the following intrinsics:
* nir_intrinsic_load_shared
* nir_intrinsic_load_ssbo
v2: Removed use of stride = 2 on 16-bit sources (Jason Ekstrand)
v3: - Add bitsize to scattered read operation (Jason Ekstrand)
- Remove implementation of 16-bit UBO read from this patch.
- Avoid assertion at opt_algebraic caused by ADD of two IMM with
offset with BRW_REGISTER_TYPE_UD type found on matrix tests.
(Jose Maria Casanova)
v4: (Jason Ekstrand)
- Put if case for 16-bits at the beginning of the if ladder.
- Use type_sz(dest.type) * 8 as bit_size parameter for scattered read.
Reviewed-by: Jason Ekstrand <[email protected]>
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v2: Fix alignment style (Topi Pohjolainen)
(Jason Ekstrand)
- Enable bit_size parameter to scattered messages to enable different
bitsizes byte/word/dword.
- Remove use of brw_send_indirect_scattered_message in favor of
brw_send_indirect_surface_message.
- Move scattered messages to surface messages namespace.
- Assert align1 for scattered messages and assume Gen8+.
- Inline brw_set_dp_byte_scattered_read.
v3: (Jason Ekstrand)
- Use renamed brw_byte_scattered_data_element_from_bit_size method
- Assert scattered read for Gen8+ and Haswell.
- Use conditional expresion at components_read.
- Include comment about params for scattered opcodes.
Reviewed-by: Jason Ekstrand <[email protected]>
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While on Untyped Surface messages the bits of the execution mask are
ANDed with the corresponding bits of the Pixel/Sample Mask, that is
not the case for byte scattered writes. That is needed to avoid ssbo
stores writing on helper invocations. So when that can affect, we load
the sample mask, and predicate the send message.
Note: the need for this patch was tested with a custom test. Right now
the 16 bit storage CTS tests doesnt need this path in order to get a
full pass.
Reviewed-by: Jason Ekstrand <[email protected]>
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We need to rely on byte scattered writes as untyped writes are 32-bit
size. We could try to keep using 32-bit messages when we have two or
four 16-bit elements, but for simplicity sake, we use the same message
for any component number. We revisit this aproach in the follwing
patches.
v2: Removed use of stride = 2 on 16-bit sources (Jason Ekstrand)
v3: (Jason Ekstrand)
- Include bit_size to scattered write message and remove namespace
- specific for scattered messages.
- Move comment to proper place.
- Squashed with i965/fs: Adjust type_size/type_slots on store_ssbo.
(Jose Maria Casanova)
- Take into account that get_nir_src returns now WORD types for
16-bit sources instead of DWORD.
v4: (Jason Ekstrand)
- Rename lenght variable to num_components.
- Include assertions before emit_untyped_write.
- Remove type_slot in favor of num_slot and first_slot.
Signed-off-by: Jose Maria Casanova Crespo <[email protected]>
Signed-off-by: Alejandro Piñeiro <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
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v2: (Jason Ekstrand)
- Enable bit_size parameter to scattered messages to enable different
bitsizes byte/word/dword.
- Remove use of brw_send_indirect_scattered_message in favor of
brw_send_indirect_surface_message.
- Move scattered messages to surface messages namespace.
- Assert align1 for scattered messages and assume Gen8+.
- Inline brw_set_dp_byte_scattered_write.
v3: - Remove leftover newline (Topi Pohjolainen)
- Rename brw_data_size to brw_scattered_data_element and use
defines instead of an enum (Jason Ekstrand)
- Assert scattered write for Gen8+ and Haswell (Jason Ekstrand)
Signed-off-by: Jose Maria Casanova Crespo <[email protected]>
Signed-off-by: Alejandro Piñeiro <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
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