Commit graph

5422 commits

Author SHA1 Message Date
Eduardo Lima Mitev
4dc7b76276 anv/radv: Resolving 'GetInstanceProcAddr' should not require a valid instance
Since vk_icdGetInstanceProcAddr() is wired through
vkGetInstanceProcAddr() in both drivers, we lost the ability for
'GetInstanceProcAddr' to resolve itself prior to having a valid
instance.

An upcoming spec change will fix that and allow
vkGetInstanceProcAddr() to resolve itself passing NULL as
instance. See https://gitlab.khronos.org/vulkan/vulkan/issues/2057
for details.

This patch implements the change in both radv and anvil.

CTS changes have already landed:
https://gitlab.khronos.org/Tracker/vk-gl-cts/issues/2278

vulkan-loader changes have also landed:
https://gitlab.khronos.org/Tracker/vk-gl-cts/issues/2278

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4273>
2020-04-24 09:09:14 +00:00
Lionel Landwerlin
efdb7fa9a8 anv: force whole EU array to be powered for perf queries
Because of functional requirements for Gen11, when perf is enabled we
only power half the EU array.

This change forces it to enable everything.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Acked-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Rafael Antognolli <rafael.antognolli@intel.com>
Reviewed-by: Mark Janes <mark.a.janes@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4021>
2020-04-23 15:55:59 +00:00
Lionel Landwerlin
a7998371ed intel/perf: specify sseu configuration when supported
Because of functional requirements for Gen11, when perf is enabled we
only power half the EU array.

This change forces it to enable everything.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Acked-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Rafael Antognolli <rafael.antognolli@intel.com>
Reviewed-by: Mark Janes <mark.a.janes@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4021>
2020-04-23 15:55:59 +00:00
Lionel Landwerlin
8f152ed101 intel/perf: store default sseu configuration
This is the powergating configuration of the EU array. The default is
everything powered.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Acked-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Rafael Antognolli <rafael.antognolli@intel.com>
Reviewed-by: Mark Janes <mark.a.janes@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4021>
2020-04-23 15:55:59 +00:00
Rhys Perry
32d871b48f nir/algebraic: don't undo lowering of 8/16-bit comparisons to 32-bit
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4387>
2020-04-23 10:57:38 +00:00
Kenneth Graunke
259cae4442 intel/compiler: Don't create 64-bit src1 immediates in opt_peephole_sel
64-bit immediates are only allowed as src0.  Long ago, we decided to
avoid constructing such illegal situations in the IR, rather than
allowing them in the IR but then promoting bogus immediates to GRFs
later.  So, we need to fix opt_peephole_sel to not put 64-bit immediates
as src1 of the new SEL instruction.

Fixes: a4b36cd3dd ("intel/fs: Coalesce when the src live range is contained in the dst")
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/2816
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4692>
2020-04-23 00:53:14 +00:00
Kenneth Graunke
4459a70a6e intel/compiler: Delete abs/neg handling in fsign code
This should have gone away when removing source modifiers.  They won't
be set any longer, so this is simply dead code.

Fixes: b7c47c4f7c ("intel/compiler: Drop nir_lower_to_source_mods() and related handling.")
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4691>
2020-04-22 17:04:37 -07:00
Kenneth Graunke
220f0e10d8 intel/compiler: Don't copy prop source mods into PICK_HIGH_32BIT
VEC4_OPCODE_PICK_HIGH_32BIT performs 32-bit UD access on a 64-bit DF
value.  abs and negate make sense on DF, but break entirely when
trying to access pieces of the value as unsigned integer dwords.

Fixes an fsign Piglit test on Ivybridge:
tests/spec/arb_gpu_shader_fp64/execution/built-in-functions/vs-sign-neg-abs

It had regressed when I removed nir_lower_to_source_modifiers, as that
caused us to start generating different code which provoked this bug.

Fixes: b7c47c4f7c ("intel/compiler: Drop nir_lower_to_source_mods() and related handling.")
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/2817
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4691>
2020-04-22 17:03:18 -07:00
Kenneth Graunke
902c8731f4 intel/compiler: Put back saturate on [iu]add_sat opcodes
I deleted one too many inst->saturate = ... lines.  This one must stay.

Fixes: b7c47c4f7c ("intel/compiler: Drop nir_lower_to_source_mods() and related handling.")
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4669>
2020-04-22 00:47:40 +00:00
Kenneth Graunke
b7c47c4f7c intel/compiler: Drop nir_lower_to_source_mods() and related handling.
I think we're unanimous in wanting to drop nir_lower_to_source_mods.
It's a bit of complexity to handle in the backend, but perhaps more
importantly, would be even more complexity to handle in nir_search.

And, it turns out that since we made other compiler improvements in the
last few years, they no longer appear to buy us anything of value.
Summarizing the results from shader-db from this patch:

 - Icelake (scalar mode)

   Instruction counts:

   - 411 helped, 598 hurt (out of 139,470 shaders)
   - 99.2% of shaders remain unaffected.  The average increase in
     instruction count in hurt programs is 1.78 instructions.
   - total instructions in shared programs: 17214951 -> 17215206 (<.01%)
   - instructions in affected programs: 1143879 -> 1144134 (0.02%)

   Cycles:

   - 1042 helped, 1357 hurt
   - total cycles in shared programs: 365613294 -> 365882263 (0.07%)
   - cycles in affected programs: 138155497 -> 138424466 (0.19%)

 - Haswell (both scalar and vector modes)

   Instruction counts:

   - 73 helped, 1680 hurt (out of 139,470 shaders)
   - 98.7% of shaders remain unaffected.  The average increase in
     instruction count in hurt programs is 1.9 instructions.
   - total instructions in shared programs: 14199527 -> 14202262 (0.02%)
   - instructions in affected programs: 446499 -> 449234 (0.61%)

   Cycles:

   - 5253 helped, 5559 hurt
   - total cycles in shared programs: 359996545 -> 360038731 (0.01%)
   - cycles in affected programs: 155897127 -> 155939313 (0.03%)

Given that ~99% of shader-db remains unaffected, and the affected
programs are hurt by about 1-2 instructions - which are all cheap
ALU instructions - this is unlikely to be measurable in terms of
any real performance impact that would affect users.

So, drop them and simplify the backend, and hopefully enable other
future simplifications in NIR.

Reviewed-by: Eric Anholt <eric@anholt.net> [v1]
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4616>
2020-04-21 21:42:21 +00:00
Dylan Baker
8e3696137f remove final imports.h and imports.c bits
This moves the fi_types to a new mesa_private.h and removes the
imports.c file. The vast majority of this patch is just removing
pound includes of imports.h and fixing up the recursive includes.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3024>
2020-04-21 11:09:04 -07:00
Dylan Baker
f8e4542bad replace _mesa_logbase2 with util_logbase2
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3024>
2020-04-21 11:09:03 -07:00
Dylan Baker
e533fad182 replace _mesa_is_pow_two with util_is_power_of_two_*
Mostly this uses util_is_power_of_two_or_zero, which has the same
behavior as _mesa_is_pow_two when the input is zero. In cases where the
value is known to be != 0 ahead of time I used the _nonzero variant as
it may be faster on some platforms.

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3024>
2020-04-21 11:09:03 -07:00
Abhishek Kumar
f06e4ab319 anv/android: fix assert in anv_import_ahw_memory
Commit fixes assert that triggers when running
   dEQP-VK.api.external.memory.android_hardware_buffer.dedicated.buffer#bind_export_import_bind

on a debug build of Mesa.

Fixes: c79a528d ("anv/android: support import/export of AHardwareBuffer objects")
Signed-off-by: Abhishek Kumar <abhishek4.kumar@intel.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4655>
2020-04-21 11:50:15 +00:00
Jason Ekstrand
7c43b8ce1b nir: Delete the fnoise opcodes
As of the previous commit, they are never used.

Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4624>
2020-04-21 06:16:13 +00:00
Jason Ekstrand
a4b36cd3dd intel/fs: Coalesce when the src live range is contained in the dst
Consider the following case:

    // g119-123 are written somewhere above
    mul.sat(16)   g67<1>F    g6.4<0,1,0>F   g125<8,8,1>F
    mul.sat(16)   g69<1>F    g6.5<0,1,0>F   g125<8,8,1>F
    mul.sat(16)   g71<1>F    g6.6<0,1,0>F   g125<8,8,1>F
    mov(16)       g119<1>F   g67<8,8,1>F
    mov(16)       g121<1>F   g69<8,8,1>F
    mov(16)       g123<1>F   g71<8,8,1>F

We should be able to coalesce it into

    mul.sat(16)   g119<1>F   g6.4<0,1,0>F   g125<8,8,1>F
    mul.sat(16)   g121<1>F   g6.5<0,1,0>F   g125<8,8,1>F
    mul.sat(16)   g123<1>F   g6.6<0,1,0>F   g125<8,8,1>F

What's stopping us is an overly conservative check for writes to the two
registers being coalesced.  The check walks over the intersection of
their live ranges and checks for no writes to either one.  However,
because the register which starts the live range (the mul.sat in this
case) is inside that intersection, we flag it as a write in the
intersection and don't coalesce.  However, this case is safe because the
destination register of the copy is never read after the source is
written.

Shader-db changes on ICL:

    total instructions in shared programs: 16043613 -> 16042610 (<.01%)
    instructions in affected programs: 43036 -> 42033 (-2.33%)
    helped: 226
    HURT: 0
    helped stats (abs) min: 1 max: 30 x̄: 4.44 x̃: 4
    helped stats (rel) min: 0.09% max: 26.67% x̄: 4.89% x̃: 3.43%
    95% mean confidence interval for instructions value: -4.86 -4.02
    95% mean confidence interval for instructions %-change: -5.57% -4.22%
    Instructions are helped.

    total cycles in shared programs: 334766372 -> 334710124 (-0.02%)
    cycles in affected programs: 617548 -> 561300 (-9.11%)
    helped: 214
    HURT: 2
    helped stats (abs) min: 15 max: 1512 x̄: 263.21 x̃: 212
    helped stats (rel) min: 0.30% max: 75.36% x̄: 25.30% x̃: 21.58%
    HURT stats (abs)   min: 40 max: 40 x̄: 40.00 x̃: 40
    HURT stats (rel)   min: 0.15% max: 0.15% x̄: 0.15% x̃: 0.15%
    95% mean confidence interval for cycles value: -277.91 -242.90
    95% mean confidence interval for cycles %-change: -27.58% -22.55%
    Cycles are helped.

No spill/fill changes or gained/lost

Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4627>
2020-04-21 01:00:24 +00:00
Jason Ekstrand
14b8d979db intel/fs: Rename block to scan_block in can_coalesce_vars
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4627>
2020-04-21 01:00:24 +00:00
Jonathan Marek
7870d71459 anv: use common nir_convert_ycbcr
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: D Scott Phillips <d.scott.phillips@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4528>
2020-04-20 22:01:43 +00:00
Rafael Antognolli
4abf0837cd anv: Add support for new MMAP_OFFSET ioctl.
v2: Update getparam check (Ken).

[jordan.l.justen@intel.com: use 0 offset for MMAP_OFFSET]

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/1675>
2020-04-20 10:59:06 -07:00
Rafael Antognolli
0d387da083 anv: Add anv_device parameter to anv_gem_munmap.
Also update all of its callers.

On the next commit, the device will be used by anv_gem_munmap to choose
whether we need to call the valgrind code or not, depending on which
type of mmap we are using.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/1675>
2020-04-20 10:59:06 -07:00
Caio Marcelo de Oliveira Filho
c76f2292b5 intel/fs,vec4: Properly account SENDs in IVB memory fence
Change brw_memory_fence to return the number of messages emitted, and
use that to update the send_count statistic in code generation.

This will fix the book-keeping for IVB since the memory fences will
result in two SEND messages.

Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4646>
2020-04-20 09:29:09 -07:00
Jason Ekstrand
969aeb6a93 anv: Apply any needed PIPE_CONTROLs before emitting state
Push constants in particular can get picked up by the hardware at weird
times that happen *before* 3DPRIMITIVE.  Therefore, we need to flush
before we emit all our state to ensure that any data they may pick up is
in memory in time.  This fixes an app which does vkCmdCopyBuffers
immediately followed by a vkCmdBeginRenderPass and vkCmdDraw which uses
the destination of the copy as a UBO which we push.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4601>
2020-04-19 02:41:22 +00:00
Jason Ekstrand
ffc84eac0d anv: Move vb_emit setup closer to where it's used in flush_state
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4601>
2020-04-19 02:41:22 +00:00
Albert Astals Cid
06c5875fd6 Fix promotion of floats to doubles
Use the f variants of the math functions if the input parameter is a
float, saves converting from float to double and running the double
variant of the math function for gaining no precision at all

Reviewed-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3969>
2020-04-18 19:55:45 +00:00
Lionel Landwerlin
f27c707585 anv: skip writing perfcntr in results on Gen12+
We were not capturing the register already so don't bother writing the
delta in the results (we were previously doing a delta between two 0
values).

v2: Fix unused function warning

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4586>
2020-04-18 13:32:27 +03:00
Lionel Landwerlin
086ea1ac7e intel/perf: Enable MDAPI queries for Gen12
We're missing the cases for gen12 leading to those metrics going
missing.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Fixes: 15b7b56eb2 ("intel/perf: add TGL support")
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4586>
2020-04-18 02:04:09 +03:00
Ian Romanick
f7d620f47d intel/compiler: Fixup operands in fs_builder::emit() that takes array
The versions that take a specific number of operands will do various
fixups depending on the platform and the opcode.  However, the version
that takes an array of sources did not.  This makes all version operate
similarly.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4582>
2020-04-17 08:21:47 -07:00
Ian Romanick
39ad0c2af8 intel/compiler: CSEL can do saturate
Reviewed-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4582>
2020-04-17 08:21:46 -07:00
Ian Romanick
5afaa407c1 intel/compiler: Only GE and L modifiers are commutative for SEL
Reviewed-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4582>
2020-04-17 08:21:43 -07:00
Ian Romanick
a80e44902f intel/compiler: Silence unused parameter warning in update_inst_scoreboard
src/intel/compiler/brw_fs_scoreboard.cpp: In function ‘void {anonymous}::update_inst_scoreboard(const fs_visitor*, const ordered_address*, const fs_inst*, unsigned int, {anonymous}::scoreboard&)’:
src/intel/compiler/brw_fs_scoreboard.cpp:793:45: warning: unused parameter ‘shader’ [-Wunused-parameter]
  793 |    update_inst_scoreboard(const fs_visitor *shader, const ordered_address *jps,
      |                           ~~~~~~~~~~~~~~~~~~^~~~~~

Reviewed-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4582>
2020-04-17 08:21:42 -07:00
Ian Romanick
c836295dfd intel/compiler: Silence unused parameter warning in fs_live_variables::setup_one_read
src/intel/compiler/brw_fs_live_variables.cpp: In member function ‘void brw::fs_live_variables::setup_one_read(brw::fs_live_variables::block_data*, fs_inst*, int, const fs_reg&)’:
src/intel/compiler/brw_fs_live_variables.cpp:56:67: warning: unused parameter ‘inst’ [-Wunused-parameter]
   56 | fs_live_variables::setup_one_read(struct block_data *bd, fs_inst *inst,
      |                                                          ~~~~~~~~~^~~~

Reviewed-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4582>
2020-04-17 08:21:40 -07:00
Ian Romanick
62f70a353f intel/compiler: Silence unused parameter warnings in vec4_tcs_visitor
In file included from src/intel/compiler/brw_vec4_tcs.cpp:31:
src/intel/compiler/brw_vec4_tcs.h: In member function ‘virtual void brw::vec4_tcs_visitor::emit_urb_write_header(int)’:
src/intel/compiler/brw_vec4_tcs.h:74:43: warning: unused parameter ‘mrf’ [-Wunused-parameter]
   74 |    virtual void emit_urb_write_header(int mrf) {}
      |                                       ~~~~^~~
src/intel/compiler/brw_vec4_tcs.h: In member function ‘virtual brw::vec4_instruction* brw::vec4_tcs_visitor::emit_urb_write_opcode(bool)’:
src/intel/compiler/brw_vec4_tcs.h:75:57: warning: unused parameter ‘complete’ [-Wunused-parameter]
   75 |    virtual vec4_instruction *emit_urb_write_opcode(bool complete) { return NULL; }
      |                                                    ~~~~~^~~~~~~~

Reviewed-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4582>
2020-04-17 08:21:37 -07:00
Jason Ekstrand
030e5ceac4 intel/blorp: Delete an unused enum
This was lying around from back when BLORP write to fs_visitor directly.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4606>
2020-04-17 15:01:10 +00:00
Jason Ekstrand
d0d039a4d3 anv: Emit pushed UBO bounds checking code in the back-end compiler
This commit fixes performance regressions introduced by e03f965280
in which we started bounds checking our push constants.  This added a
LOT of shader code to shaders which use the robustBufferAccess feature
and led to substantial spilling.  The checking we just added to the FS
back-end is far more efficient for two reasons:

 1. It can be done at a whole register granularity rather than per-
    scalar and so we emit one SIMD8 SEL per 32B GRF rather than one
    SIMD16 SEL (executed as two SELs) for each component loaded.

 2. Because we do it with NoMask instructions, we can do it on whole
    pushed GRFs without splatting them out to SIMD8 or SIME16 values.
    This means that robust buffer access no longer explodes our register
    pressure for no good reason.

As a tiny side-benefit, we're now using can use AND instead of SEL which
means no need for the flag and better scheduling.

Vulkan pipeline database results on ICL:

    Instructions in all programs: 293586059 -> 238009118 (-18.9%)
    SENDs in all programs: 13568515 -> 13568515 (+0.0%)
    Loops in all programs: 149720 -> 149720 (+0.0%)
    Cycles in all programs: 88499234498 -> 84348917496 (-4.7%)
    Spills in all programs: 1229018 -> 184339 (-85.0%)
    Fills in all programs: 1348397 -> 246061 (-81.8%)

This also improves the performance of a few apps:

 - Shadow of the Tomb Raider: +4%
 - Witcher 3: +3.5%
 - UE4 Shooter demo: +2%

Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4447>
2020-04-17 14:48:06 +00:00
Jason Ekstrand
eb5a10ff63 intel/cfg: Add first/last_block helpers
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4447>
2020-04-17 14:48:06 +00:00
Jason Ekstrand
029471c3c4 intel/batch_decoder: Stop printing to stdout
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4597>
2020-04-16 17:26:16 +00:00
Jason Ekstrand
b8acf9a3d4 anv: Report correct SLM size
Fixes: d787a2d0 "anv: Implement VK_KHR_pipeline_executable_properties"
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4597>
2020-04-16 17:26:16 +00:00
Jason Ekstrand
e003104605 intel: Add _const versions of prog_data cast helpers
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4597>
2020-04-16 17:26:16 +00:00
Jason Ekstrand
26a1adce5b anv: Fix UBO range detection in anv_nir_compute_push_layout
This fixes two bugs:  First, if the same block index showed up twice, we
only pick the first one.  Second, we weren't multiplying by 32.  This
didn't show up in tests because RBA testing is garbage.  Found while
looking at shaders from the UE4 Shooter demo.

Fixes: e03f9652 "anv: Bounds-check pushed UBOs when..."
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4578>
2020-04-15 21:51:55 +00:00
Jason Ekstrand
b2e4157143 anv: Advertise SEND count through VK_EXT_pipeline_executable_properties
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4578>
2020-04-15 21:51:55 +00:00
Caio Marcelo de Oliveira Filho
db74ad0696 intel/compiler: Remove cs_prog_data->threads
At this point all drivers are doing this math on their own -- since
most of them need to cover the variable group size case, in which at
compile time the group size (and number of threads) is not defined.

Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4504>
2020-04-09 19:23:20 -07:00
Caio Marcelo de Oliveira Filho
928f5f5434 anv: Stop using cs_prog_data->threads
Move the calculation to helper functions -- similar to what GL already
needs to do.

This is a preparation for dropping this field since this value is
expected to be calculated by the drivers now for variable group size
case.  And also the field would get in the way of brw_compile_cs
producing multiple SIMD variants (like FS).

Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4504>
2020-04-09 19:23:12 -07:00
Plamena Manolova
c77dc51203 intel/compiler: Add support for variable workgroup size
Add new builtin parameters that are used to keep track of the group
size.  This will be used to implement ARB_compute_variable_group_size.

The compiler will use the maximum group size supported to pick a
suitable SIMD variant.  A later improvement will be to keep all SIMD
variants (like FS) so the driver can select the best one at dispatch
time.

When variable workgroup size is used, the small workgroup optimization
is disabled as it we can't prove at compile time that the barriers
won't be needed.

Extracted from original i965 patch with additional changes by
Caio Marcelo de Oliveira Filho.

Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4504>
2020-04-09 19:23:12 -07:00
Caio Marcelo de Oliveira Filho
c54fc0d07b intel/compiler: Replace cs_prog_data->push.total with a helper
The push.total field had three values but only one was directly
used (size).  Replace it with a helper function that explicitly takes
the cs_prog_data and the number of threads -- and use that in the
drivers.

This is a preparation for ARB_compute_variable_group_size where the
number of threads (hence the total size for push constants) is not
defined at compile time (not cs_prog_data->threads).

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4504>
2020-04-09 19:23:12 -07:00
Caio Marcelo de Oliveira Filho
cf54785239 anv/gen12: Lower VK_KHR_multiview using Primitive Replication
Identify if view_index is used only for position calculation, and use
Primitive Replication to implement Multiview in Gen12.  This feature
allows storing per-view position information in a single execution of
the shader, treating position as an array.

The shader is transformed by adding a for-loop around it, that have an
iteration per active view (in the view_mask).  Stores to the position
now store into the position array for the current index in the loop,
and load_view_index() will return the view index corresponding to the
current index in the loop.

The feature is controlled by setting the environment variable
ANV_PRIMITIVE_REPLICATION_MAX_VIEWS, which defaults to 2 if unset.
For pipelines with view counts larger than that, the regular
instancing will be used instead of Primitive Replication.  To disable
it completely set the variable to 0.

v2: Don't assume position is set in vertex shader; remove only stores
    for position; don't apply optimizations since other passes will
    do; clone shader body without extract/reinsert; don't use
    last_block (potentially stale). (Jason)

    Fix view_index immediate to contain the view index, not its order.
    Check for maximum number of views supported.
    Add guard for gen12.

v3: Clone the entire shader function and change it before reinsert;
    disable optimization when shader has memory writes. (Jason)

    Use a single environment variable with _DEBUG on the name.

v4: Change to use new nir_deref_instr.
    When removing stores, look for mode nir_var_shader_out instead
    of the walking the list of outputs.
    Ensure unused derefs are removed in the non-position part of the
    shader.
    Remove dead control flow when identifying if can use or not
    primitive replication.

v5: Consider all the active shaders (including fragment) when deciding
    that Primitive Replication can be used.
    Change environment variable to ANV_PRIMITIVE_REPLICATION.
    Squash the emission of 3DSTATE_PRIMITIVE_REPLICATION into this patch.
    Disable Prim Rep in blorp_exec_3d.

v6: Use a loop around the shader, instead of manually unrolling, since
    the regular unroll pass will kick in.
    Document that we don't expect to see copy_deref or load_deref
    involving the position variable.
    Recover use_primitive_replication value when loading pipeline from
    the cache.
    Set VARYING_SLOT_LAYER to 0 in the shader.  Earlier versions were
    relying on ForceZeroRTAIndexEnable but that might not be
    sufficient.
    Disable Prim Rep in cmd_buffer_so_memcpy.

v7: Don't use Primitive Replication if position is not set, fallback
    to instancing; change environment variable to be
    ANV_PRIMITVE_REPLICATION_MAX_VIEWS and default it to 2 based on
    experiments.

Reviewed-by: Rafael Antognolli <rafael.antognolli@intel.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/2313>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/2313>
2020-04-07 17:16:09 +00:00
Caio Marcelo de Oliveira Filho
395de69b1f intel/fs: Allow multiple slots for position
Change brw_compute_vue_map() to also take the number of pos slots.  If
more than one slot is used, the VARYING_SLOT_POS is treated as an
array.

When using Primitive Replication, instead of a single position, the
VUE must contain an array of positions.  Padding might be
necessary (after clip distance) to ensure rest of attributes start
aligned.

v2: Add note about array in the commit message and assert that
    pos_slots >= 1 to make clear 0 is invalid. (Jason)
    Move padding to be after the clip distance.

v3: Apply the correct offset when gathering the sources from outputs.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net> [v2]
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Rafael Antognolli <rafael.antognolli@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/2313>
2020-04-07 17:16:09 +00:00
Caio Marcelo de Oliveira Filho
afa5447312 intel/gen12: Add XML description for 3DSTATE_PRIMITIVE_REPLICATION
v2: Use groups for the 16-element arrays "Viewport Offset"
    and "RTAI Offset". (Ken)

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Rafael Antognolli <rafael.antognolli@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/2313>
2020-04-07 17:16:09 +00:00
Jason Ekstrand
991c426160 intel/nir: Enable load/store vectorization
This commit enables the I/O vectorization pass that was originally
written for ACO for Intel drivers.  We enable it for UBOs, SSBOs, global
memory, and SLM.  We only enable vectorization for the scalar back-end
because it vec4 makes certain alignment assumptions.

Shader-db results with iris on ICL:

    total instructions in shared programs: 16077927 -> 16068236 (-0.06%)
    instructions in affected programs: 199839 -> 190148 (-4.85%)
    helped: 324
    HURT: 0
    helped stats (abs) min: 2 max: 458 x̄: 29.91 x̃: 4
    helped stats (rel) min: 0.11% max: 38.94% x̄: 4.32% x̃: 1.64%
    95% mean confidence interval for instructions value: -37.02 -22.80
    95% mean confidence interval for instructions %-change: -5.07% -3.58%
    Instructions are helped.

    total cycles in shared programs: 336806135 -> 336151501 (-0.19%)
    cycles in affected programs: 16009735 -> 15355101 (-4.09%)
    helped: 458
    HURT: 154
    helped stats (abs) min: 1 max: 77812 x̄: 1542.50 x̃: 75
    helped stats (rel) min: <.01% max: 34.46% x̄: 5.16% x̃: 2.01%
    HURT stats (abs)   min: 1 max: 22800 x̄: 336.55 x̃: 20
    HURT stats (rel)   min: <.01% max: 17.11% x̄: 2.12% x̃: 1.00%
    95% mean confidence interval for cycles value: -1596.83 -542.49
    95% mean confidence interval for cycles %-change: -3.83% -2.82%
    Cycles are helped.

    total sends in shared programs: 814177 -> 809049 (-0.63%)
    sends in affected programs: 15422 -> 10294 (-33.25%)
    helped: 324
    HURT: 0
    helped stats (abs) min: 1 max: 256 x̄: 15.83 x̃: 2
    helped stats (rel) min: 1.33% max: 67.90% x̄: 21.21% x̃: 15.38%
    95% mean confidence interval for sends value: -19.67 -11.98
    95% mean confidence interval for sends %-change: -23.03% -19.39%
    Sends are helped.

    LOST:   7
    GAINED: 2

Most of the helped shaders were in the following titles:

 - Doom
 - Deus Ex: Mankind Divided
 - Aztec Ruins
 - Shadow of Mordor
 - DiRT Showdown
 - Tomb Raider (Rise, I think)

Five of the lost programs are SIMD16 shaders we lost from dirt showdown.
The other two are compute shaders in Aztec Ruins which switched from
SIMD8 to SIMD16.

Vulkan pipeline-db stats on ICL:

    Instructions in all programs: 296780486 -> 293493363 (-1.1%)
    Loops in all programs: 149669 -> 149669 (+0.0%)
    Cycles in all programs: 90999206722 -> 88513844563 (-2.7%)
    Spills in all programs: 1710217 -> 1730691 (+1.2%)
    Fills in all programs: 1931235 -> 1958138 (+1.4%)

By far the most help was in the Tomb Raider games.  A couple of Batman
games with DXVK were also helped.  In Shadow of the Tomb Raider:

    Instructions in all programs: 41614336 -> 39408023 (-5.3%)
    Loops in all programs: 32200 -> 32200 (+0.0%)
    Cycles in all programs: 1875498485 -> 1667034831 (-11.1%)
    Spills in all programs: 196307 -> 214945 (+9.5%)
    Fills in all programs: 282736 -> 307113 (+8.6%)

Benchmarks of real games I've done on this patch:

 - Rise of the Tomb Raider: +3%
 - Shadow of the Tomb Raider: +10%

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4367>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4367>
2020-04-03 20:26:54 +00:00
Jason Ekstrand
c1bcb025db intel/nir: Lower memory access bit sizes later
We're about to do load/store vectorization right before this but we need
that to happen after we've done a round of optimization.  Otherwise,
we'll be getting unoptimized NIR in from ANV and the vectorizer won't be
able to do anything with it.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4367>
2020-04-03 20:26:54 +00:00
Jason Ekstrand
4c8b100388 anv: Improve brw_nir_lower_mem_access_bit_sizes
This commit makes us take both bit size and alignment into account so
that we can properly handle cases such as when we have a 32-bit store
to an 8-bit-aligned address.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4367>
2020-04-03 20:26:54 +00:00