| Commit message (Collapse) | Author | Age | Files | Lines |
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Back when I originally wrote this code, force_sechalf was only used for
Gen4 code, so I didn't bother hooking it up. However, it's used more
generally these days. In particular, we use it for computing
gl_SamplePosition.
Fixes Piglit's spec/ARB_sample_shading/builtin-gl-sample-position tests.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=77222
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>
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We previously only allowed coalescing registers that interfere (i.e.,
whose live ranges overlap) if the destination register's live range was
entirely inside the source's live range. This is unnecessary -- we only
need to check for interfering writes in the intersection of their live
ranges.
total instructions in shared programs: 1639470 -> 1638453 (-0.06%)
instructions in affected programs: 84751 -> 83734 (-1.20%)
Reviewed-by: Kenneth Graunke <[email protected]>
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Rather than any old control flow. Muchnick's algorithm just checks for
interfering writes between the MOV and the end of the program. Handling
this when you have backward branches is hard, so don't, but there's no
reason to bail if you see forward branches.
instructions in affected programs: 4270 -> 4248 (-0.52%)
Reviewed-by: Kenneth Graunke <[email protected]>
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We were starting at the beginning of the instruction list, rather than
with the MOV instruction itself. This allows us to coalesce after
control flow.
Excluding the shaders from an unreleased title, the shader-db results:
total instructions in shared programs: 1603791 -> 1594215 (-0.60%)
instructions in affected programs: 678772 -> 669196 (-1.41%)
GAINED: 5
LOST: 0
Reviewed-by: Kenneth Graunke <[email protected]>
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Reviewed-by: Kenneth Graunke <[email protected]>
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And avoid rewriting other instructions unnecessarily. Removes a few
self-moves we weren't able to handle because they were components of a
large VGRF.
instructions in affected programs: 830 -> 826 (-0.48%)
Reviewed-by: Kenneth Graunke <[email protected]>
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Otherwise there's nothing to do.
Reviewed-by: Kenneth Graunke <[email protected]>
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This sets up the proper execution mask for sends in SIMD16 mode.
Fixes Piglit's glsl-fs-normalmatrix, glsl-fs-uniform-array-2,
glsl-fs-uniform-array-6, and glsl-fs-uniform-array-7 on Ironlake,
which regressed when I enabled SIMD16 pull parameter support in
commit b207e88b25e526d0f1ada7b19605b880a27866dc.
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>
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Fixes failures in Khronos OpenGL CTS test proxy_textures_invalid_samples
Cc: <[email protected]>
Signed-off-by: Anuj Phogat <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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Fixes failures in Khronos OpenGL CTS test conditional_render_test9
Cc: <[email protected]>
Signed-off-by: Anuj Phogat <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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Cc: <[email protected]>
Signed-off-by: Anuj Phogat <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
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gl_ViewportIndex doesn't get its own varying slot. It is stored
in VARYING_SLOT_PSIZ.z. This patch fixes the issue for both gen7
and gen8 because gen7_upload_3dstate_so_decl_list() is shared
between them.
Fixes failures in OpenGL Khronos CTS test transform_feedback_builtins.
Makes new piglit test glsl-1.50-transform-feedback-builtins pass for
'gl_ViewportIndex'.
Cc: <[email protected]>
Signed-off-by: Anuj Phogat <[email protected]>
Reviewed-by: Chris Forbes <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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gl_Layer doesn't get its own varying slot. It is stored in
VARYING_SLOT_PSIZ.y. This patch fixes the issue for both gen7
and gen8 because gen7_upload_3dstate_so_decl_list() is shared
between them.
Fixes failures in OpenGL Khronos CTS test transform_feedback_builtins.
Makes new piglit test glsl-1.50-transform-feedback-builtins pass for
'gl_Layer'.
Cc: <[email protected]>
Signed-off-by: Anuj Phogat <[email protected]>
Reviewed-by: Chris Forbes <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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Cc: <[email protected]>
Signed-off-by: Anuj Phogat <[email protected]>
Reviewed-by: Chris Forbes <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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fs-deref-literal-array-of-structs.shader_test
This allows the following shader code to work without a weird crash:
struct Foo {
int value[1];
};
int actual_value = Foo[2](Foo(int[1](100)), Foo(int[1](200)))[i].value[0];
Signed-off-by: Maarten Lankhorst <[email protected]>
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Fixes piglit's fbo-blit-stretch test on drivers which use the meta path.
(i965: should fix Broadwell, but also fixes Sandybridge/Ivybridge/Haswell
since this test falls off the blorp path now due to format conversion)
V2: Use scissor instead of just mangling the rects, to avoid texcoord
rounding problems. (Thanks Marek)
V3: Rebase on Eric's CTSI meta changes; re-add _mesa_update_state in the
CTSI path so that _mesa_clip_blit sees the correct bounds.
Signed-off-by: Chris Forbes <[email protected]>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=77414
Reviewed-by: Anuj Phogat <[email protected]>
Tested-by: Anuj Phogat <[email protected]>
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According to the spec:
<renderbuffertarget> must be RENDERBUFFER and <renderbuffer>
should be set to the name of the renderbuffer object to be
attached to the framebuffer. <renderbuffer> must be either
zero or the name of an existing renderbuffer object of type
<renderbuffertarget>, otherwise an INVALID_OPERATION error is
generated.
This patch changes the previous returned GL_INVALID_VALUE to
GL_INVALID_OPERATION.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76894
Cc: [email protected]
Reviewed-by: Anuj Phogat <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
Signed-off-by: Samuel Iglesias Gonsalvez <[email protected]>
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Now that we properly track accumulator dependencies, the scheduler is
able to schedule instructions between the mach and mov in the common
the integer multiplication pattern:
mul acc0, x, y
mach null, x, y
mov dest, acc0
Since a null destination implies no dependency on the destination, we
can also safely schedule instructions (that don't write the accumulator)
between the mul and mach.
Reviewed-by: Kenneth Graunke <[email protected]>
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This allows us to emit ADD/MUL/MAC instead of MUL/ADD/MUL/ADD,
saving one instruction and two temporary registers.
Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
Signed-off-by: Juha-Pekka Heikkila <[email protected]>
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This allows us to generate the MAC (multiply-accumulate) instruction,
which can be used to implement some expressions in fewer instructions
than doing a series of MUL and ADDs.
Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
Signed-off-by: Juha-Pekka Heikkila <[email protected]>
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This allows us to emit ADD/MUL/MAC instead of MUL/ADD/MUL/ADD,
saving one instruction and two temporary registers.
Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
Signed-off-by: Juha-Pekka Heikkila <[email protected]>
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This allows us to generate the MAC (multiply-accumulate) instruction,
which can be used to implement some expressions in fewer instructions
than doing a series of MUL and ADDs.
Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
Signed-off-by: Juha-Pekka Heikkila <[email protected]>
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Our hardware has an "accumulator" register, which can be used to store
intermediate results across multiple instructions. Many instructions
can implicitly write a value to the accumulator in addition to their
normal destination register. This is enabled by the "AccWrEn" flag.
This patch introduces a new flag, inst->writes_accumulator, which
allows us to express the AccWrEn notion in the IR. It also creates a
n ALU2_ACC macro to easily define emitters for instructions that
implicitly write the accumulator.
Previously, we only supported implicit accumulator writes from the
ADDC, SUBB, and MACH instructions. We always enabled them on those
instructions, and left them disabled for other instructions.
To take advantage of the MAC (multiply-accumulate) instruction, we
need to be able to set AccWrEn on other types of instructions.
Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
Signed-off-by: Juha-Pekka Heikkila <[email protected]>
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Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
Signed-off-by: Juha-Pekka Heikkila <[email protected]>
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Reviewed-by: Kenneth Graunke <[email protected]>
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OpenGL 4.0 spec, page 306 suggests an INVALID_OPERATION in glGetTexImage
if :
"format is one of the integer formats in table 3.3 and the internal
format of the texture image is not integer, or format is not one of
the integer formats in table 3.3 and the internal format is integer."
V2: Use helper function _mesa_is_format_integer()
Cc: <[email protected]>
Signed-off-by: Anuj Phogat <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
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This function will be used in the following patch.
Cc: <[email protected]>
Signed-off-by: Anuj Phogat <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
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mesa currently returns 4 when GL_VERTEX_ATTRIB_ARRAY_SIZE is queried
for a vertex array initially set up with size=GL_BGRA. This patch
makes changes to return size=GL_BGRA as required by the spec.
Fixes Khronos OpenGL CTS test: vertex_array_bgra_basic.test
V2: Use array->Format instead of adding a new variable
Signed-off-by: Anuj Phogat <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
Cc: <[email protected]>
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This reverts commit f092e8951ce5212ba3cbb382ce3a6666eb6c9bed.
Didn't mean to push this...
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Otherwise there's nothing to do.
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This manifested as rendering failures or sometimes GPU hangs in
compositors when they accidentally got MSAA visuals due to a bug in the X
Server. Today we decided that the problem in compositors was equivalent
to a corruption bug we'd noticed recently in resizing MSAA-visual
glxgears, and debugging got a lot easier.
When we allocate our MCS MT, libdrm takes the size we request, aligns it
to Y tile size (blowing it up from 300x300=900000 bytes to 384*320=122880
bytes, 30 pages), then puts it into a power-of-two-sized BO (131072 bytes,
32 pages). Because it's Y tiled, we attach a 384-byte-stride fence to it.
When we memset by the BO size in Mesa, between bytes 122880 and 131072 the
data gets stored to the first 20 or so scanlines of each of the 3 tiled
pages in that row, even though only 2 of those pages were allocated by
libdrm. In the glxgears case, the missing 3rd page happened to
consistently be the static VBO that got mapped right after the first MCS
allocation, so corruption only appeared once window resize made us throw
out the old MCS and then allocate the same BO to back the new MCS.
Instead, just memset the amount of data we actually asked libdrm to
allocate for, which will be smaller (more efficient) and not overrun.
Thanks go to Kenneth for doing most of the hard debugging to eliminate a
lot of the search space for the bug.
Cc: "10.0 10.1" <[email protected]>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=77207
Reviewed-by: Kenneth Graunke <[email protected]>
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We don't have any piglit tests for this currently.
v2: Use vec3s for the texcoords so it has some hope of working.
Reviewed-by: Ian Romanick <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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You'll note from the previous commits that there's something of a loop
here: You call CTSI, which calls BlitFB, then if things go wrong that
falls back to CTSI. As a result, meta CTSI reaches over into blitfb to
tell it "no, don't try that fallback".
v2: Drop the _mesa_update_state(), which was only necessary due to use of
_mesa_clip_blit() in _mesa_meta_BlitFramebuffer() in another patch
series.
v3: Drop an _EXT suffix I copy-and-pasted.
Reviewed-by: Ian Romanick <[email protected]> (v2)
Reviewed-by: Kenneth Graunke <[email protected]>
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I added support to bind_fbo_image in the process of building meta
CopyTexSubImage, and found that it broke generatemipmap because previously
we would just throw a GL error there and then end up with an incomplete
FBO and fallback.
Reviewed-by: Ian Romanick <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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Reviewed-by: Ian Romanick <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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I need to do the same code again for CopyTexSubImage().
v2: Drop incorrect, not-terribly-useful comment (review by Ken)
Reviewed-by: Ian Romanick <[email protected]> (v1)
Reviewed-by: Kenneth Graunke <[email protected]>
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This avoids a ReadPixels() if there's accelerated CopyTexImage present.
It now requires GLSL as opposed to just fragment programs, but we don't
have any drivers that do ARB_fp but not GLSL.
Reviewed-by: Ian Romanick <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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There shouldn't be anything special about copying out a subset of the src
rb to a temp before texturing from it, so just do it when we're figuring
out our src texture binding.
This drops Anuj's change to copy an extra border of 1 pixel around the src
area. I can't see how that change could be valid, and presumably if
there's some filtering problem at edges we just need to set the right
wrap mode.
v2: Don't fall back to swrast on non-2D/RECT/2D_MS textures when we can
still CopyTexSubImage. Fixes a segfault regression on i965 with
gl-3.2-layered-rendering-blit.
Reviewed-by: Ian Romanick <[email protected]> (v1)
Reviewed-by: Kenneth Graunke <[email protected]> (v1)
Tested-by: Anuj Phogat <[email protected]>
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I think we can assert that renderbuffer size is <= maximum 2D texture
size. Our source coordinates should have already been clipped to the src
renderbuffer size, but haven't actually (so we could potentially have
trouble if there's scaling, and we're in the CopyTexImage path that tries
to use src size). However, this texture size dependency was blocking the
next refactors, so I'm not sure if we want to go ahead with this series
before we get the clipping sorted out or not.
Reviewed-by: Ian Romanick <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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Putting NoDDClr and NoDDChk dependency control on instruction
sequences that include math opcodes can cause corruption of channels.
Treat math opcodes like send opcodes and suppress dependency hinting.
Signed-off-by: Mike Stroyan <[email protected]>
Tested-by: Tony Bertapelli <[email protected]>
Cc: [email protected]
Reviewed-by: Matt Turner <[email protected]>
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Reviewed-by: Kenneth Graunke <[email protected]>
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Users will downcast if they don't have >32 debug flags.
Reviewed-by: Kenneth Graunke <[email protected]>
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Subsumed by the new dead_code_eliminate() function. No shader-db
changes.
Reviewed-by: Eric Anholt <[email protected]>
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One program affected:
instructions in affected programs: 246 -> 244 (-0.81%)
Reviewed-by: Eric Anholt <[email protected]>
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total instructions in shared programs: 1653399 -> 1651790 (-0.10%)
instructions in affected programs: 92157 -> 90548 (-1.75%)
GAINED: 2
LOST: 2
Also significantly reduces the number of optimization loop iterations:
total loop iterations in shared programs: 39724 -> 31651 (-20.32%)
loop iterations in affected programs: 21617 -> 13544 (-37.35%)
Including some great pathological cases, like 29 -> 3 in Strike Suit
Zero and 24 -> 3 in Dota2.
Reviewed-by: Eric Anholt <[email protected]>
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We previously stopped searching for unread writes after encountering
control flow, but we can instead just search backwards until we hit
control flow.
instructions in affected programs: 22854 -> 22194 (-2.89%)
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The generator uses its destination as a source implicitly, which breaks
some assumptions in dead code elimination. Giving the instruction a
source allows us to reason about it better.
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We originally thought that GL 3.0 required GL_DEPTH_COMPONENT16 to map
exactly to Z16. However, we misread the specification, thanks in part
to LaTeX reordering the tables in the PDF.
Page 180 of the GL 3.0 specification (glspec30.20080923.pdf) says:
"[...] memory allocation per texture component is assigned by the GL to
match the allocations listed in tables 3.16-3.18 as closely as possible.
[...]
Required Texture Formats
[...]
In addition, implementations are required to support the following sized
internal formats. Requesting one of these internal formats for any
texture type will allocate exactly the internal component sizes and
types shown for that format in tables 3.16-3.17:"
Notably, however, GL_DEPTH_COMPONENT16 does /not/ appear in table 3.16
or table 3.17. It appears in table 3.18, where the "exact" rule doesn't
apply, and it falls back to the "closely as possible" rule.
The confusing part is that the ordering of the tables in the PDF is:
Table 3.16 (pages 182-184)
Table 3.18 (bottom of page 184 to top of 185)
Table 3.17 (page 185)
Presumably, people saw table 3.16, then saw the table immediately
following with DEPTH_COMPONENT* formats, and assumed it was 3.17.
Based on a patch by Chia-I Wu, but without the driconf option to force
Z16 to be used. It's not required, and there's apparently no benefit
to actually using it.
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
Reviewed-by: Chia-I Wu <[email protected]>
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We've learned a few things since we originally disabled Z16; this attempts
to summarize the issue. I am no expert on this subject, though, so the
comment may not be totally accurate.
I did some benchmarking on GM45 and Ironlake, and discovered that for
GLBenchmark 2.7 EgyptHD, using Z16 was 3% slower on GM45 (n=15), and
4.5% slower on Ironlake (n=95). So, we can drop the "on Ivybridge"
aspect of the comment - it's always slower.
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
Reviewed-by: Chia-I Wu <[email protected]>
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Copied from similar code in gen8_vec4_generator.cpp.
Signed-off-by: Jordan Justen <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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