| Commit message (Collapse) | Author | Age | Files | Lines |
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Instead of relying on hardware defaults the i915 kernel driver is
going program custom MOCS tables system-wide on Gen9 hardware. The
"WT" entry previously used for renderbuffers had a number of problems:
It disabled caching on eLLC, it used a reserved L3 cacheability
setting, and it used to override the PTE controls making renderbuffers
always WT on LLC regardless of the kernel's setting. Instead use an
entry from the new MOCS tables with parameters: TC=LLC/eLLC, LeCC=PTE,
L3CC=WB.
The "WB" entry previously used for anything other than renderbuffers
has moved to a different index in the new MOCS tables but it should
have the same caching semantics as the old entry.
Even though the corresponding kernel change ("drm/i915: Added
Programming of the MOCS") is in a way an ABI break it doesn't seem
necessary to check that the kernel is recent enough because the change
should only affect Gen9 which is still unreleased hardware.
v2: Update MOCS values for the new Android-incompatible tables
introduced in v7 of the kernel patch.
Cc: 10.6 <[email protected]>
Reference: http://lists.freedesktop.org/archives/intel-gfx/2015-July/071080.html
Reviewed-by: Ben Widawsky <[email protected]>
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The formats chosen (both by texture format choser, fbo storage allocation)
are different for big endian not just for rgba8 but also lower bit width
formats (why I don't actually know). Even the function to test for renderable
formats used different formats, however the actual colorbuffer setup did not.
And the blitter did not take that into account neither.
Untested (what could possibly go wrong...).
Same as for r100.
Acked-by: Marek Olšák <[email protected]>
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The formats chosen (both by texture format choser, fbo storage allocation)
are different for big endian not just for rgba8 but also lower bit width
formats (why I don't actually know). Even the function to test for renderable
formats used different formats, however the actual colorbuffer setup did not.
And the blitter did not take that into account neither.
Untested (what could possibly go wrong...).
Acked-by: Marek Olšák <[email protected]>
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Blit submits lots of packets which are usually handled by state atoms, so
these must be dirtied.
Not sure if this fixes anything, but it was a concern raised by bug 51658
(with this all issues there seen as actual bugs should be fixed, with the
exception of the patch to upload non-used texenv state atoms which I just
don't understand).
Acked-by: Marek Olšák <[email protected]>
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It is rather unfortunate that we don't know if a texture is going to be used
as a rt later, and we lack the means to do something about a format chosen
which we can't render to directly, so disable this and always chose renderable
format for rgba8 textures.
This addresses an issue raised on (old) bug,
https://bugs.freedesktop.org/show_bug.cgi?id=51658 with gnome-shell, don't
know if that's still applicable but it might fix other things as well.
Acked-by: Marek Olšák <[email protected]>
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Along with fixing the type of pitch parameter, patch also changes
the types of few local variables and function return type.
Warnings fixed are:
intel_mipmap_tree.c:671:7: warning: passing argument 3 of
'intel_get_yf_ys_bo_size' from incompatible pointer type
intel_mipmap_tree.c:563:1: note: expected 'uint64_t *' but
argument is of type 'long unsigned int *'
Signed-off-by: Anuj Phogat <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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Previously OUT_BATCH was just a macro around an inline function which
does
brw->batch.map[brw->batch.used++] = dword;
When making consecutive calls to intel_batchbuffer_emit_dword() the
compiler isn't able to recognize that we're writing consecutive memory
locations or that it doesn't need to write batch.used back to memory
each time.
We can avoid both of these problems by making a local pointer to the
next location in the batch in BEGIN_BATCH().
Cuts 18k from the .text size.
text data bss dec hex filename
4946956 195152 26192 5168300 4edcac i965_dri.so before
4928956 195152 26192 5150300 4e965c i965_dri.so after
This series (including commit c0433948) improves performance of Synmark
OglBatch7 by 8.01389% +/- 0.63922% (n=83) on Ivybridge.
Reviewed-by: Chris Wilson <[email protected]>
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The next patch will replace the .used field with an on-demand
calculation of batchbuffer usage.
Reviewed-by: Chris Wilson <[email protected]>
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So that everything writing to the batch between BEGIN_BATCH() and
ADVANCE_BATCH() goes through OUT_BATCH.
Reviewed-by: Chris Wilson <[email protected]>
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BEGIN_BATCH() and ADVANCE_BATCH() will contain "do {" and "} while (0)"
respectively to allow declaring local variables used by intervening
OUT_BATCH macros. As such, BEGIN_BATCH() and ADVANCE_BATCH() need to be
in the same control flow.
Reviewed-by: Iago Toral Quiroga <[email protected]>
Reviewed-by: Chris Wilson <[email protected]>
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Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91337
Cc: 10.6 <[email protected]>
Reviewed-by: Emil Velikov <[email protected]>
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This field should always be set for gen8. In the bdw PRM, Volume 2d:
Command Reference: Structures under INTERFACE_DESCRIPTOR_DATA, DWORD
6, Bits 9:0, Number of Threads in GPGPU Thread Group:
"This field should not be set to 0 even if the barrier is disabled,
since an accurate value is needed for proper pre-emption."
In the HSW PRM, the it doesn't mention that it must always be set, but
it should not hurt.
Reported-by: Kristian Høgsberg <[email protected]>
Signed-off-by: Jordan Justen <[email protected]>
Reviewed-by: Ben Widawsky <[email protected]>
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Reviewed-by: Topi Pohjolainen <[email protected]>
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Reviewed-by: Jordan Justen <[email protected]>
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Reviewed-by: Jordan Justen <[email protected]>
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v2:
- Fix error message (Jordan)
Reviewed-by: Jordan Justen <[email protected]>
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v2:
- Add space before const (Jordan)
Reviewed-by: Jordan Justen <[email protected]>
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v2:
- Remove the extra spaces (Jordan)
Reviewed-by: Jordan Justen <[email protected]>
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v2:
- Fix indention, used tabs instead of whitespaces. (Jordan)
Reviewed-by: Jordan Justen <[email protected]>
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v2:
- Set MaxShaderStorageBlocks to 8.
Signed-off-by: Samuel Iglesias Gonsalvez <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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This includes the array of bindings, the current buffer bound to the
GL_SHADER_STORAGE_BUFFER target and a set of general limits and default
values for shader storage buffers.
v2:
- Use spec values for the new defined constants (Jordan)
Reviewed-by: Jordan Justen <[email protected]>
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Reviewed-by: Jordan Justen <[email protected]>
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Since this now checks if a variable is inside a uniform or a shader
storage block.
Reviewed-by: Jordan Justen <[email protected]>
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Signed-off-by: Samuel Iglesias Gonsalvez <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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Most of the data stored(duplicated) was unused, and for the one that is
follow the approach set by other drivers.
This eliminates the use of legacy (dri1) types.
Cc: Marek Olšák <[email protected]>
Signed-off-by: Emil Velikov <[email protected]>
Reviewed-by: Michel Dänzer <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
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Signed-off-by: Emil Velikov <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
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Signed-off-by: Emil Velikov <[email protected]>
Reviewed-by: Samuel Iglesias Gonsálvez <[email protected]>
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When binding a layered texture, the layer is already 0. There's no need
to special case this.
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Anuj Phogat <[email protected]>
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This ports over Chris Forbes' equivalent fixes in gen7_misc_state.c
from commit 77d55ef4819436ebbf9786a1e720ec00707bbb19.
No Piglit changes on Sandybridge.
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Topi Pohjolainen <[email protected]>
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Color clears can be performed via two separate shaders - one is the
generic "meta clear" shader (in meta.c); the other is the i965 specific
"repclear" shader (in brw_meta_fast_clear.c).
Giving them separate names makes them distinguishable when reading
INTEL_DEBUG=shader_time output.
v2: Call it "meta repclear", as suggested by Jason.
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
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The last patch left the code indented too far.
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
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Paul's original code had emit_control_data_bits() skip the URB write if
vertex_count was 0. This meant wrapping every control data write in a
conditional write.
We accumulate control data bits in a single UD (32-bit) register. For
simple shaders that don't emit many vertices, the control data header
will be <= 32-bits long, so we only need to write it once at the end of
the shader.
For shaders with larger headers, we write out batches of control data
bits at EmitVertex(), when (vertex_count * bits_per_vertex) % 32 == 0.
On the first EmitVertex() call, the above expression will evaluate to
true simply because vertex_count == 0. But we want to avoid emitting
the control data bits, because we haven't accumulated 32-bits worth yet.
In other words, the vertex_count != 0 check is really only necessary in
the EmitVertex() batching case, not the end-of-thread case.
This saves a CMP/IF/ENDIF in every shader that uses EndPrimitive() or
multiple streams. The only downside is that a shader which emits no
vertices at all will execute an additional URB write---but such shaders
are pointless and not worth optimizing.
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
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Don't assume that $(top_srcdir)/.git is a directory. It may be a
gitlink file [1] if $(top_srcdir) is a submodule checkout or a linked
worktree [2].
[1] A "gitlink" is a text file that specifies the real location of
the gitdir.
[2] Linked worktrees are a new feature in Git 2.5.
Cc: "10.6, 10.5" <[email protected]>
Reviewed-by: Iago Toral Quiroga <[email protected]>
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After tearing it out another level or two, and just passing the key and
vp directly, we can finally remove this struct. It also eliminates a
pointless memcpy() of the key.
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Topi Pohjolainen <[email protected]>
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At this point, the brw_vs_compile structure only contains the key and
gl_vertex_program pointer. We may as well pass and store them directly;
it's simpler and more convenient (key-> instead of vs_compile->key...).
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Topi Pohjolainen <[email protected]>
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Nothing outside of vec4_visitor uses it, so we may as well keep it
internal.
Commit db9c915abcc5ad78d2d11d0e732f04cc94631350 for the vec4 backend.
(The empty class will be going away soon.)
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Topi Pohjolainen <[email protected]>
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This is more consistent with how we do it in the FS backend, and reduces
a tiny bit of duplication. It'll also allow for a bit more tidying.
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Topi Pohjolainen <[email protected]>
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This patch makes us only issue the performance warning about register
spilling if we actually spilled registers. We also use scratch space
for indirect addressing and the like.
This is basically commit c51163b0cf7aff0375b1a5ea4cb3da9d9e164044 for
the vec4 backend.
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Topi Pohjolainen <[email protected]>
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Jason plumbed this through a while back in the FS backend, but
apparently we were just passing NULL in the vec4 backend.
This patch passes brw in as intended.
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Topi Pohjolainen <[email protected]>
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Adding new shader stages to a switch statement is less confusing than an
if-else-if ladder where all but the first case are fragment shader
specific (but don't claim to be).
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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It's only used inside #ifdef DEBUG. Cuts ~1.7k of .text, and more
importantly prevents a larger code size regression in the next commit
when the .used field is replaced and calculated on demand.
text data bss dec hex filename
4945468 195152 26192 5166812 4ed6dc i965_dri.so before
4943740 195152 26192 5165084 4ed01c i965_dri.so after
And surround the emit and total fields with #ifdef DEBUG to prevent
such mistakes from happening again.
Reviewed-by: Iago Toral Quiroga <[email protected]>
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This patch can cause an infinite recursion if the previous patch titled, "i965:
Track finished batch state" isn't present (backporters take notice).
v2: Sent out the wrong patch originally. This patches switches the order of
flushes, doing the generic flush before the CC_STATE, and the required
workaround flush afterwards
v3: Only perform workaround for render ring
Add text to the BATCH_RESERVE comments
v4 (By Ken): Rebase; update citation to mention PRM and Wa name; combine two
blocks.
http://otc-mesa-ci.jf.intel.com/job/bwidawsk/171/
Signed-off-by: Ben Widawsky <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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With the exception of gen8, the sole user of the workaround bo are for
emitting pipe controls. Move it out of the purview of the batchbuffer
and into the pipecontrol.
Signed-off-by: Chris Wilson <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Martin Peres <[email protected]>
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Move the query for the TIMESTAMP register from context init to the
screen, so that it is only queried once for all contexts.
On 32bit systems, some old kernels trigger a hw bug resulting in the
TIMESTAMP register being shifted and the low 32bits always zero. Detect
this by repeating the read a few times and check the register is
incrementing every 80ns as expected and not stuck on zero (as would be
the case with the buggy kernel/hw.).
Signed-off-by: Chris Wilson <[email protected]>
Cc: Martin Peres <[email protected]>
Reviewed-by: Martin Peres <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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Matrix vertex attributes have their columns padded out to vec4s, which
I was failing to account for. Scalar NIR expects them to be packed,
however.
Fixes 1256 dEQP tests on Broadwell.
Cc: [email protected]
Signed-off-by: Kenneth Graunke <[email protected]>
Tested-by: Mark Janes <[email protected]>
Reviewed-by: Chris Forbes <[email protected]>
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This was probably disabled due to a combination of several bugs in the
generator code (fixed earlier in this series) and a misunderstanding
of the hardware spec. The documentation for most control flow
instructions mentions among other restrictions:
"Instruction compression is not allowed."
This however doesn't have any implications on 16 wide not being
supported, because none of the control flow instructions have
multi-register operands (control flow instructions are not compressed
on more recent hardware either, except maybe SNB's IF with inline
compare). In fact Gen4-5 had 16-wide control flow masks and stacks,
and the spec mentions in several places that control flow instructions
push and pop 16 channels worth of data -- Otherwise there doesn't seem
to be any indication that it shouldn't work.
Causes no piglit regressions, and gives the following shader-db
results on ILK:
total instructions in shared programs: 4711384 -> 4711384 (0.00%)
instructions in affected programs: 0 -> 0
helped: 0
HURT: 0
GAINED: 1215
LOST: 0
Reviewed-by: Matt Turner <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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From the hardware docs for the DO instruction:
"Execution size is ignored for this instruction."
My observation on ILK hardware contradicts the spec though, channels
over the execution size of a DO instruction won't enter the loop, and
channels over the execution size of a WHILE instruction will exit the
loop after the first iteration -- The latter is consistent with the
spec though, there's no claim about the execution size being ignored
for the WHILE instruction so it's not completely unexpected that it
has an influence on the evaluation of EMask.
The execute_size argument of brw_DO() shouldn't have any effect on
Gen6 and newer hardware. On Gen4-5 WHILE instructions inherit the
execution size from the matching DO, so this patch should fix them
too. The execution size of BREAK and CONT instructions was already
being set correctly.
Fixes some 50 piglit tests on Gen4-5 when forced to run shaders with
conditional and loop instructions 16-wide,
e.g. shaders/glsl-fs-continue-inside-do-while.
Reviewed-by: Matt Turner <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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The hardware docs don't mention explicitly what these fields should
be, but I've verified experimentally on ILK that using a GRF as
destination causes the register to be corrupted when the execution
size of an ENDIF instruction is higher than 8 -- and because the
destination we were using was g0, eventually a hang.
Fixes some 150 piglit tests on Gen4-5 when forced to run shaders with
if conditionals 16-wide, e.g. shaders/glsl-fs-sampler-numbering-3.
Reviewed-by: Matt Turner <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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Reviewed-by: Chad Versace <[email protected]>
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Ben noticed that I said each PIPE_CONTROL was 4 DWords, but it's
actually 5 DWords on Gen6-7. We've been reserving insufficient space
for performance monitoring on Sandybridge, which means it would likely
break if you used that functionality. (Thankfully, no one does...)
Also, the existing number of 146 was the result of me flubbing up the
arithmetic: it should have actually been 140.
Cc: [email protected]
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Anuj Phogat <[email protected]>
Reviewed-by: Ben Widawsky <[email protected]>
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