| Commit message (Collapse) | Author | Age | Files | Lines |
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compr4 is represented by setting the high bit on the MRF number.
We need to mask it out before sanity checking the register number.
Fixes ~8000 assert fails on Ironlake and G45.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92066
Signed-off-by: Kenneth Graunke <[email protected]>
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Reviewed-by: Kenneth Graunke <[email protected]>
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Reviewed-by: Kenneth Graunke <[email protected]>
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There are some bug reports about shaders failing to compile in gen6
because MRF 14 is used when we need to spill. For example:
https://bugs.freedesktop.org/show_bug.cgi?id=86469
https://bugs.freedesktop.org/show_bug.cgi?id=90631
Discussion in bugzilla pointed to the fact that gen6 might actually have
24 MRF registers available instead of 16, so we could use other MRF
registers and avoid these conflicts (we still need to investigate why
some shaders need up to MRF 14 anyway, since this is not expected).
Notice that the hardware docs are not clear about this fact:
SNB PRM Vol4 Part2's "Table 5-4. MRF Registers Available in Device
Hardware" says "Number per Thread" - "24 registers"
However, SNB PRM Vol4 Part1, 1.6.1 Message Register File (MRF) says:
"Normal threads should construct their messages in m1..m15. (...)
Regardless of actual hardware implementation, the thread should
not assume th at MRF addresses above m15 wrap to legal MRF registers."
Therefore experimentation was necessary to evaluate if we had these extra
MRF registers available or not. This was tested in gen6 using MRF
registers 21..23 for spilling and doing a full piglit run (all.py) forcing
spilling of everything on the FS backend. It was also tested by doing
spilling of everything on both the FS and the VS backends with a piglit run
of shader.py. In both cases no regressions were observed. In fact, many of
these tests where helped in the cases where we forced spilling, since that
triggered the same underlying problem described in the bug reports. Here are
some results using INTEL_DEBUG=spill_fs,spill_vec4 for a shader.py run on
gen6 hardware:
Using MRFs 13..15 for spilling:
crash: 2, fail: 113, pass: 6621, skip: 5461
Using MRFs 21..23 for spilling:
crash: 2, fail: 12, pass: 6722, skip: 5461
This patch sets the ground for later patches to implement spilling
using MRF registers 21..23 in gen6.
Reviewed-by: Kenneth Graunke <[email protected]>
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In a later patch we will make BRW_MAX_MRF return a different value depending
on the hardware generation, but it is inconvenient to add a gen parameter
to the brw_reg functions only for the assertions, so move these to places where
we have the hardware generation available.
Ken suggested to add the asserts to brw_set_src0 and brw_set_dest since that
would make sure that we catch all uses of MRF registers, even those coming
from modules that generate native code directly, like blorp. Unfortunately,
this is very late in the process which can make things harder to debug, so add
asserts to the generator as well.
Reviewed-by: Kenneth Graunke <[email protected]>
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Until now we only used MRFs 1..15 for regular SEND messages, so the
message length could not possibly exceed the maximum size. Soon we'll
allow to use MRF registers 1..23 in gen6, so we need to be careful
not to build messages that can go beyond the limit. That could occur,
specifically, when building URB write messages, which we may need to
split in chunks due to their size. Previously we would simply go and
create a new message when we reached MRF 13 (since 13..15 were
reserved for spilling), now we also want to check the size of the
message explicitly.
Besides adding that condition to split URB write messages properly,
this patch also adds asserts in the generator. Notice that
brw_inst_set_mlen already asserts for this, but asserting in the
generators is easy and can make debugging easier in some cases.
Reviewed-by: Kenneth Graunke <[email protected]>
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For consistency, either we have all class members dereferenced, or none.
In this case, very few are so lets get rid of them all.
Reviewed-by: Timothy Arceri <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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Broken by commit c228514c72cb2fd5fb9e510808e29204fc9e7ae1
"dri/common: use sysconfdir when looking for drirc".
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92054
Signed-off-by: Marcin Ślusarz <[email protected]>
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Reuse utility functions instead of reimplementing the same logic.
* _mesa_is_compressed_format() performs the required checking to
determine format support in the current context.
* _mesa_gl_compressed_format_base_format() returns the base format.
As a side effect, we now check that we're in a desktop context when
determining support for the FXT1 and RGTC formats. This is in agreement
with our extension table and the glext headers.
Reviewed-by: Anuj Phogat <[email protected]>
Signed-off-by: Nanley Chery <[email protected]>
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Add S3TC and PALETTE formats.
Reviewed-by: Anuj Phogat <[email protected]>
Signed-off-by: Nanley Chery <[email protected]>
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Instead of case statements, use _mesa_get_format_layout() to
determine if a GL format is part of a family of compressed formats.
v2. restrict LATC formats to API_OPENGL_COMPAT (Ilia).
rename the variable mFormat to m_format.
Reviewed-by: Anuj Phogat <[email protected]>
Signed-off-by: Nanley Chery <[email protected]>
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This enables us to predicate statments on a compressed format being
a type of LATC format. Also, remove the comment that lists the enum
(it was getting a tad long).
Reviewed-by: Anuj Phogat <[email protected]>
Signed-off-by: Nanley Chery <[email protected]>
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Useful when locally installed mesa has more quirks than the system one.
Signed-off-by: Marcin Ślusarz <[email protected]>
Reviewed-by: Ilia Mirkin <[email protected]>
Reviewed-by: Emil Velikov <[email protected]>
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Some hardware, such as adreno a3xx, supports txp on some but not all
sampler types. In this case we want more fine grained control over
which texture projectors get lowered.
v2: split out nir_lower_tex_options struct to make it easier to
add the additional parameters coming in the following patches
Signed-off-by: Rob Clark <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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Since the following patches will add additional tex-lowering related
functionality, which doesn't make sense to split out into a separate
pass (as they would require duplication of the projector lowering
logic), let's give this pass a more generic name.
Signed-off-by: Rob Clark <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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current instruction
SEL and MOV instructions, as long as they don't have source modifiers, are
just copying bits around. So those kind of instruction could be propagated
even if there are type mismatches. This is needed because NIR generates
integer SEL and MOV instructions whenever it doesn't know what else to
generate.
This commit adds support for copy propagation using current instruction
as reference.
Equivalent to commit 472ef9 but for vec4.
v2: include check for saturate, as Jason Ekstrand suggested
v3: check that the dst.type and the src type are the same, in order to
solve (among others) the following deqp regression with v2:
dEQP-GLES3.functional.shaders.operator.unary_operator.minus.lowp_uint_vertex
Reviewed-by: Jason Ekstrand <[email protected]>
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brw_fs_visitor.cpp: In member function 'void fs_visitor::emit_urb_writes()':
brw_fs_visitor.cpp:977:58: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
Reviewed-by: Tapani Pälli <[email protected]>
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OpenGL ES 3.0 spec 3.7.2 "Transfer of Pixel Rectangles" specifies
DEPTH_COMPONENT, UNSIGNED_INT as a valid couple, validation for
internal format is checked by is_float_depth().
Fix regression caused by 81d2fd91a90e5b2fd9fd74792a7a7c329f0e4d29 in:
ES3-CTS.gtf.GL3Tests.packed_pixels.packed_pixels
Test uses GL_DEPTH_COMPONENT, UNSIGNED_INT only when GL_NV_read_depth
extension is present.
v2: change check in _mesa_error_check_format_and_type to be explicit
for ES 2.0+, desktop OpenGL does not allow this behaviour + uses
this function for both glReadPixels and glDrawPixels validation.
(No Piglit regressions seen with v2.)
Signed-off-by: Tapani Pälli <[email protected]>
Reviewed-by: Anuj Phogat <[email protected]>
Reviewed-by: Samuel Iglesias Gonsálvez <[email protected]> [v1]
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92009
Cc: "10.6 11.0" <[email protected]>
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The idea here is not that it gives register coalescing a little bit of a
helping hand. It doesn't actually fix the coalescing problems, but it
seems to help a good bit.
Shader-db results for vec4 programs on Haswell:
total instructions in shared programs: 1746280 -> 1683959 (-3.57%)
instructions in affected programs: 1259166 -> 1196845 (-4.95%)
helped: 11363
HURT: 148
v2 (Jason Ekstrand):
- Run nir_move_vec_src_uses_to_dest after going out of SSA
- New shader-db numbers
Reviewed-by: Eduardo Lima Mitev <[email protected]>
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Various pieces of code to create compressed textures will first
generate an uncompressed RGBA texture into a temporary buffer,
and then read from that buffer while creating the final compressed
texture in the requested format.
The code reading from the temporary buffer assumes the buffer is
formatted as an array of bytes in RGBA order. However, the buffer
is filled using a _mesa_texstore call with MESA_FORMAT_R8G8B8A8_UNORM
format -- this is defined as an array of *integers* holding the
RGBA values in packed format (least-significant to most-significant).
This means incorrect bytes are accessed on big-endian systems.
This patch fixes this by using the MESA_FORMAT_A8B8G8R8_UNORM format
instead on big-endian systems when filling the buffer. This fixes
about 100 piglit test case failures on s390x for me.
Signed-off-by: Ulrich Weigand <[email protected]>
Tested-by: Oded Gabbay <[email protected]>
Cc: "10.6" "11.0" <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
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From OpenGL 4.5 Core spec (7.13):
"If pipeline is a name that has been generated (without subsequent
deletion) by GenProgramPipelines, but refers to a program pipeline
object that has not been previously bound, the GL first creates a
new state vector in the same manner as when BindProgramPipeline
creates a new program pipeline object."
I interpret this as "If GetProgramPipelineiv gets called without a
bound (but valid) pipeline object, the state should reflect initial
state of a new pipeline object." This is also expected behaviour by
ES31-CTS.sepshaderobjs.PipelineApi conformance test.
Signed-off-by: Tapani Pälli <[email protected]>
Reviewed-by: Marta Lofstedt <[email protected]>
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From OpenGL ES 3.1 spec (7.12):
"Most properties set within program objects are specified not to
take effect until the next call to LinkProgram or ProgramBinary.
Some properties further require a successful call to either of
these commands before taking effect. GetProgramiv returns the
properties currently in effect for program, which may differ from
the properties set within program since the most recent call to
LinkProgram or ProgramBinary, which have not yet taken effect. If
there has been no such call putting changes to pname into effect,
initial values are returned."
Signed-off-by: Tapani Pälli <[email protected]>
Reviewed-by: Marta Lofstedt <[email protected]>
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Specified in OpenGL ES 3.1 spec, Table 23.32: Program Object State.
Signed-off-by: Tapani Pälli <[email protected]>
Reviewed-by: Marta Lofstedt <[email protected]>
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This reverts commit 48961fa3ba37999a6f8fd812458b735e39604a95.
glamor/Xwayland use this, the spec saying something when it
was written, and the fact that the comment says Mesa relies on it
hasn't changed.
I also don't have a copy of this patch in my mail archive, which
seems wierd, did it get posted to mesa-dev?
Signed-off-by: Dave Airlie <[email protected]>
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This fixes failures with the newly-submitted max-size texture buffer
piglit test for GPUs exposing >= 128M max texels.
Signed-off-by: Ilia Mirkin <[email protected]>
Cc: "10.6 11.0" <[email protected]>
Reviewed-by: Glenn Kennard <[email protected]>
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Move this code out of bufferobj.c since it's not strongly connected to
buffer objects.
Acked-by: Matt Turner <[email protected]>
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Trivial.
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Trivial.
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Signed-off-by: Rob Clark <[email protected]>
Reviewed-by: Iago Toral Quiroga <[email protected]>
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When preparing the barrier payload, the instructions should operate in
simd8 mode since we only use 1 payload register.
fs_inst::regs_read is also updated to indicate that it only reads one
register for SHADER_OPCODE_BARRIER.
These issues were flagged by:
commit cadd7dd384b33a779d46bd664f456bed4a21a5b7
Author: Jason Ekstrand <[email protected]>
Date: Thu Jul 2 15:41:02 2015 -0700
i965/fs: Add a very basic validation pass
Signed-off-by: Jordan Justen <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
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Reviewed-by: Connor Abbott <[email protected]>
Reviewed-by: Eduardo Lima Mitev <[email protected]>
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We made this switch in the FS backend some time ago and it seems to make a
number of things a bit easier. In particular, supporting SSA values takes
very little work in the backend and allows us to take advantage of the
majority of the SSA information even after we've gotten rid of Phi nodes.
Reviewed-by: Eduardo Lima Mitev <[email protected]>
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Currently the validation pass only validates that regs_read and
regs_written are consistent with the sizes of VGRF's. We can add more as
we find it to be useful.
Reviewed-by: Matt Turner <[email protected]>
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In certain conditions, we have to do bounds-checking in the shader for
image_load_store. The way this works for image loads is that we do a
predicated load and then emit a series of selects, one per component,
that gives us 0 or the loaded value depending on whether or not you're
in bounds. However, we were hard-coding 4 components which may not be
correct. Instead, we should be using size which is the number of
components read.
Reviewed-by: Francisco Jerez <[email protected]>
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Reviewed-by: Kristian Høgsberg <[email protected]>
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Reviewed-by: Kristian Høgsberg <[email protected]>
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According to the extensions table and our glext headers,
OES_compressed_ETC1_RGB8_texture is only supported in
GLES1 and GLES2. Since we may give users a GLES3 context
when a GLES2 context is requested, we also allow this
extension for GLES3 as well.
Reviewed-by: Anuj Phogat <[email protected]>
Signed-off-by: Nanley Chery <[email protected]>
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Driver vendors do this as well. The extension specification
lists GLES 1.1 or 2.0 as requirements.
Reviewed-by: Chad Versace <[email protected]>
Signed-off-by: Nanley Chery <[email protected]>
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According the GL 3.1 spec, luminance alpha formats are deprecated.
Reviewed-by: Anuj Phogat <[email protected]>
Signed-off-by: Nanley Chery <[email protected]>
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We're trying to avoid a libdrm dependency in the core compiler, so let's
move the perf_debug code one level up from the brw_*_emit() helpers to
the brw_codegen_*_prog() helpers.
Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
Signed-off-by: Kristian Høgsberg Kristensen <[email protected]>
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All other precompile functions live in the brw_<stage>.c files, make fs
follow the convention.
Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
Signed-off-by: Kristian Høgsberg Kristensen <[email protected]>
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This moves the compute shader code around in order to make the way the
code is split up more consistent. There should be no functional changes.
Typically we have a few files per stage:
brw_vs.c, brw_wm.c brw_gs.c:
code to drive code generation and implement precompiling and
cache search.
genX_<stage>_state.c
gen specific implementation of the state emission for the shader
stage.
The brw_*_emit() functions are all in the same files as the visitor
classes they use (with the exception of VS, which may use either vec4 or
fs).
To make compute follow this convention, we move the brw_cs_emit()
function into brw_fs.cpp. We can then rename brw_cs.cpp to brw_cs.c and
do this in C like the other similar files. Finally, move state setup
and atoms to gen7_cs_state.c.
Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
Signed-off-by: Kristian Høgsberg Kristensen <[email protected]>
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See similar fix for Readpixels in mesa commit 0d20790. Jason suggested
we need that for TexSubImage as well.
Cc: <[email protected]>
Signed-off-by: Anuj Phogat <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
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Loads constants using integer as their register type, like it is
done in FS backend.
No shader-db changes in HSW.
Cc: "10.6 11.0" <[email protected]>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91716
Reviewed-by: Jason Ekstrand <[email protected]>
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If the register types do not match and the instruction
that contains the final destination is saturated, register
coalescing generated non-equivalent code.
This did not happen when using IR because types usually
matched, but it is visible in nir-vec4.
For example,
mov vgrf7:D vgrf2:D
mov.sat m4:F vgrf7:F
is coalesced to:
mov.sat m4:D vgrf2:D
The patch prevents coalescing in such scenario, unless the
instruction we want to coalesce into is a MOV (without type
conversion implied). In that case, the patch sets the register
types to the type of the final destination.
Shader-db results in HSW (only vec4 instructions shown):
total instructions in shared programs: 1754415 -> 1754416 (0.00%)
instructions in affected programs: 74 -> 75 (1.35%)
helped: 0
HURT: 1
GAINED: 0
LOST: 0
Only one extra instruction in one of the shaders, that comes from
eliminating a saturation error by preventing register coalesce.
Cc: "10.6 11.0" <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
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The image component of the ext is a no-op since there is no image support
in gallium (yet).
Signed-off-by: Ilia Mirkin <[email protected]>
Reviewed-by: Edward O'Callaghan <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
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Signed-off-by: Jordan Justen <[email protected]>
Reviewed-by: Kristian Høgsberg <[email protected]>
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Signed-off-by: Jordan Justen <[email protected]>
Reviewed-by: Kristian Høgsberg <[email protected]>
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Signed-off-by: Jordan Justen <[email protected]>
Reviewed-by: Kristian Høgsberg <[email protected]>
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Signed-off-by: Jordan Justen <[email protected]>
Reviewed-by: Kristian Høgsberg <[email protected]>
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