intel/common: Use isl for decoder surface formats

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

intel/isl: Add isl_format_is_valid

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

intel: Split gen_device_info out into libintel_dev

Split out the device info so isl doesn't depend on intel/common. Now
it will depend on the new intel/dev device info lib.

This will allow the decoder in intel/common to use isl, allowing us to
apply Ken's patch that removes the genxml duplication of surface
formats.

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

gallium/aux/hud: Avoid possible buffer overflow

Limit the length of acceptable cpu names for use in hud_get_num_cpufreq
in order to avoid a buffer overflow later in add_object when this name
is copied into cpufreq_info::name.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105274
Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

gbm: give a name to rgba fields

Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>

egl: remove duplicated initialization

Found by inspection.

The line removed is a duplicate of the line literally just above the
the 3 lines context usually printed in a commit log.

v2: enhance the commit log (Emil).

Cc: Ian Romanick <ian.d.romanick@intel.com>
Cc: Emil Velikov <emil.velikov@collabora.com>
Cc: Eric Engestrom <eric.engestrom@imgtec.com>
Signed-off-by: Andres Gomez <agomez@igalia.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

freedreno/ir3: start dealing with half-precision

Some instructions, assume src and/or dst is half-precision based on a
type field (ie. f32/s32/u32 are full precision but others are half
precision).  So add some code to sanity check the src/dst registers to
catch mixups.

Also propagate half-precision flag for SSA sources.  The instruction
consuming a SSA value needs to be of the same type as the one producing
it.

This is probably not complete half-precision support, but a useful first
step.  We do still need to add support for nir alu instructions for
converting between half/full precision.

Signed-off-by: Rob Clark <robdclark@gmail.com>

freedreno/ir3: fix fixing-up register footprint

It isn't just vertex shaders that need to fixup reg footprint for inputs
populated before shader starts.

This problem showed up with compute shaders.  If you have (for example)
a localregid sysval, but only the .x component is used, the hw still
writes the .yz components, which could overflow into other threads
causing corruption.  Showed up in cl cts 'basic/test_basic intmath_int'.
But in theory the same problem could crop up elsewhere.

Signed-off-by: Rob Clark <robdclark@gmail.com>

freedreno: surfaces can be PIPE_BUFFER

At least for clover.

Signed-off-by: Rob Clark <robdclark@gmail.com>

freedreno/a5xx: handle compute resources

Not *entirely* sure why this is a different BIND bit, but it is.

Signed-off-by: Rob Clark <robdclark@gmail.com>

freedreno/ir3: ignore return jump

I think this should also always only occur at the end of a BB (by
definition), and the BB successor should be the end block.

Signed-off-by: Rob Clark <robdclark@gmail.com>

freedreno: add some more compute caps

Signed-off-by: Rob Clark <robdclark@gmail.com>

freedreno/a5xx: don't expose 64b pointers yet

Temporary hack, but since we can't do 64b math yet in ir3, pretend that
we don't support 64b pointers.

Signed-off-by: Rob Clark <robdclark@gmail.com>

freedreno: steal handy macro for compute caps from nouveau

Signed-off-by: Rob Clark <robdclark@gmail.com>

freedreno: add global_bindings state

Signed-off-by: Rob Clark <robdclark@gmail.com>

freedreno/ir3: small cleanup

Signed-off-by: Rob Clark <robdclark@gmail.com>

freedreno: add pctx->memory_barrier()

Signed-off-by: Rob Clark <robdclark@gmail.com>

freedreno/ir3: cmdline compiler updates for spv shaders

Signed-off-by: Rob Clark <robdclark@gmail.com>

ac: add ac_build_fsign()

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

ac: add ac_build_isign()

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

ac: add ac_build_fract()

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

virgl: add offset alignment values to to v2 caps struct

glBindBufferRange(..) in vrend_draw_bind_ubo is failing with
more than one uniform block. This is due to improper alignment
of the start of the second block. Let's query the proper
alignment from the driver and pass it back to Mesa.

Let's query for the texture alignment too, even though the Virgl
renderer doesn't call glTexBufferRange yet.

The default values are the widest workable range possible (for example,
GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT on Nvidia is 256).

Fixes:
dEQP-GLES3.functional.ubo.* on Nvidia

Example test:
dEQP-GLES3.functional.ubo.multi_basic_types.single_buffer.shared_vertex

Note: This is based on "virgl: reduce some default capset limits.",
which hasn't landed in Mesa yet but should relatively soon.

Signed-off-by: Dave Airlie <airlied@redhat.com>

virgl: reduce some default capset limits.

Since v2 might take a while to rollout, we should reduce
these inside some gathered minimums and then v2 can increase
them using host values.

Reviewed-by: Stéphane Marchesin <marcheu@chromium.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

virgl: handle getting new capsets.

This checks the kernel api is new enough and asks for the
larger caps size since the kernel won't mess it up now.

Reviewed-by: Stéphane Marchesin <marcheu@chromium.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

radeonsi/nir: call ac_lower_indirect_derefs()

Fixes piglit tests:
tests/spec/glsl-1.50/execution/variable-indexing/gs-input-array-vec3-index-rd.shader_test
tests/spec/glsl-1.50/execution/geometry/max-input-components.shader_test

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

radeonsi: add chip class to compiler_ctx_state

This will be used in the following patch.

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

ac/radv: move lower_indirect_derefs() to ac_nir_to_llvm.c

Until llvm handles indirects better we will need to use these
workarounds in the radeonsi backend also.

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

radv: Fix copying from 3D images starting at non-zero depth.

Fixes: f4e499ec79 "radv: add initial non-conformant radv vulkan driver"
Reviewed-by: Dave Airlie <airlied@redhat.com>

swr/rast: Fix macOS macro.

Fixes: a25093de7188 ("swr/rast: Implement JIT shader caching to disk")
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-By: George Kyriazis <george.kyriazis@intel.com>

vbo: Try to reuse the same VAO more often for successive dlists.

The change tries to catch more opportunities to reuse the same set
of VAO's when building up display lists. Instead of checking the
offset with respect to the beginning of the vertex buffer object
the change tries to apply this same optimization with respect to the
previous display list node.

Reviewed-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Mathias Fröhlich <Mathias.Froehlich@web.de>

mesa: Silence unused parameter warnings from TEXSTORE_PARAMS

Reduces my build from 1717 warnings to 1547 warnings by silencing 170
instances of things like

In file included from ../../SOURCE/master/src/mesa/main/texcompress_bptc.h:30:0,
                 from ../../SOURCE/master/src/mesa/main/texcompress_bptc.c:31:
../../SOURCE/master/src/mesa/main/texcompress_bptc.c: In function ‘_mesa_texstore_bptc_rgba_unorm’:
../../SOURCE/master/src/mesa/main/texstore.h:60:14: warning: unused parameter ‘dstFormat’ [-Wunused-parameter]
  mesa_format dstFormat, \
              ^
../../SOURCE/master/src/mesa/main/texcompress_bptc.c:1276:32: note: in expansion of macro ‘TEXSTORE_PARAMS’
 _mesa_texstore_bptc_rgba_unorm(TEXSTORE_PARAMS)
                                ^~~~~~~~~~~~~~~

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

i965: Silence unused parameter warnings in genX_state_upload

Reduces my build from 1772 warnings to 1717 warnings by silencing 55
instances of things like

../../SOURCE/master/src/mesa/drivers/dri/i965/genX_state_upload.c: In function ‘gen4_emit_vertex_buffer_state’:
../../SOURCE/master/src/mesa/drivers/dri/i965/genX_state_upload.c:313:41: warning: unused parameter ‘end_offset’ [-Wunused-parameter]
                                unsigned end_offset,
                                         ^~~~~~~~~~
../../SOURCE/master/src/mesa/drivers/dri/i965/genX_state_upload.c: In function ‘gen4_emit_sampler_state_pointers_xs’:
../../SOURCE/master/src/mesa/drivers/dri/i965/genX_state_upload.c:4689:58: warning: unused parameter ‘brw’ [-Wunused-parameter]
 genX(emit_sampler_state_pointers_xs)(struct brw_context *brw,
                                                          ^~~
../../SOURCE/master/src/mesa/drivers/dri/i965/genX_state_upload.c:4690:62: warning: unused parameter ‘stage_state’ [-Wunused-parameter]
                                      struct brw_stage_state *stage_state)
                                                              ^~~~~~~~~~~
../../SOURCE/master/src/mesa/drivers/dri/i965/genX_state_upload.c: In function ‘gen4_upload_default_color’:
../../SOURCE/master/src/mesa/drivers/dri/i965/genX_state_upload.c:4730:40: warning: unused parameter ‘format’ [-Wunused-parameter]
                            mesa_format format, GLenum base_format,
                                        ^~~~~~
../../SOURCE/master/src/mesa/drivers/dri/i965/genX_state_upload.c: In function ‘translate_wrap_mode’:
../../SOURCE/master/src/mesa/drivers/dri/i965/genX_state_upload.c:4906:41: warning: unused parameter ‘brw’ [-Wunused-parameter]
 translate_wrap_mode(struct brw_context *brw, GLenum wrap, bool using_nearest)
                                         ^~~
../../SOURCE/master/src/mesa/drivers/dri/i965/genX_state_upload.c: In function ‘gen4_update_sampler_state’:
../../SOURCE/master/src/mesa/drivers/dri/i965/genX_state_upload.c:4972:37: warning: unused parameter ‘batch_offset_for_sampler_state’ [-Wunused-parameter]
                            uint32_t batch_offset_for_sampler_state)
                                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

isl: Silence unused parameter warnings in __gen_combine_address implementations

Reduces my build from 1808 warnings to 1772 warnings by silencing 36
instances of things like

../../SOURCE/master/src/intel/isl/isl_emit_depth_stencil.c: In function ‘__gen_combine_address’:
../../SOURCE/master/src/intel/isl/isl_emit_depth_stencil.c:30:29: warning: unused parameter ‘data’ [-Wunused-parameter]
 __gen_combine_address(void *data, void *loc, uint64_t addr, uint32_t delta)
                             ^~~~
../../SOURCE/master/src/intel/isl/isl_emit_depth_stencil.c:30:41: warning: unused parameter ‘loc’ [-Wunused-parameter]
 __gen_combine_address(void *data, void *loc, uint64_t addr, uint32_t delta)
                                         ^~~

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

genxml: Silence unused parameter warnings in generated pack code

Reduces my build from 1960 warnings to 1808 warnings by silencing 152
instances of things like

In file included from ../../SOURCE/master/src/intel/genxml/genX_pack.h:32:0,
                 from ../../SOURCE/master/src/intel/isl/isl_emit_depth_stencil.c:36:
src/intel/genxml/gen4_pack.h: In function ‘__gen_uint’:
src/intel/genxml/gen4_pack.h:58:49: warning: unused parameter ‘end’ [-Wunused-parameter]
 __gen_uint(uint64_t v, uint32_t start, uint32_t end)
                                                 ^~~
src/intel/genxml/gen4_pack.h: In function ‘__gen_offset’:
src/intel/genxml/gen4_pack.h:94:35: warning: unused parameter ‘start’ [-Wunused-parameter]
 __gen_offset(uint64_t v, uint32_t start, uint32_t end)
                                   ^~~~~
src/intel/genxml/gen4_pack.h:94:51: warning: unused parameter ‘end’ [-Wunused-parameter]
 __gen_offset(uint64_t v, uint32_t start, uint32_t end)
                                                   ^~~
src/intel/genxml/gen4_pack.h: In function ‘__gen_ufixed’:
src/intel/genxml/gen4_pack.h:133:48: warning: unused parameter ‘end’ [-Wunused-parameter]
 __gen_ufixed(float v, uint32_t start, uint32_t end, uint32_t fract_bits)
                                                ^~~

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

i965: Silence unused parameter warnings in blorp

Reduces my build from 2023 warnings to 1960 warnings by silencing 63
instances of things like

In file included from ../../SOURCE/master/src/mesa/drivers/dri/i965/genX_blorp_exec.c:33:0:
../../SOURCE/master/src/intel/blorp/blorp_genX_exec.h: In function ‘blorp_emit_cc_viewport’:
../../SOURCE/master/src/intel/blorp/blorp_genX_exec.h:500:51: warning: unused parameter ‘params’ [-Wunused-parameter]
                        const struct blorp_params *params)
                                                   ^~~~~~
../../SOURCE/master/src/intel/blorp/blorp_genX_exec.h: In function ‘blorp_emit_sampler_state’:
../../SOURCE/master/src/intel/blorp/blorp_genX_exec.h:524:53: warning: unused parameter ‘params’ [-Wunused-parameter]
                          const struct blorp_params *params)
                                                     ^~~~~~
In file included from ../../SOURCE/master/src/mesa/drivers/dri/i965/genX_blorp_exec.c:36:0:
../../SOURCE/master/src/mesa/drivers/dri/i965/gen4_blorp_exec.h: In function ‘blorp_emit_vs_state’:
../../SOURCE/master/src/mesa/drivers/dri/i965/gen4_blorp_exec.h:50:48: warning: unused parameter ‘params’ [-Wunused-parameter]
                     const struct blorp_params *params)
                                                ^~~~~~
../../SOURCE/master/src/mesa/drivers/dri/i965/genX_blorp_exec.c: In function ‘blorp_flush_range’:
../../SOURCE/master/src/mesa/drivers/dri/i965/genX_blorp_exec.c:197:39: warning: unused parameter ‘batch’ [-Wunused-parameter]
 blorp_flush_range(struct blorp_batch *batch, void *start, size_t size)
                                       ^~~~~
../../SOURCE/master/src/mesa/drivers/dri/i965/genX_blorp_exec.c:197:52: warning: unused parameter ‘start’ [-Wunused-parameter]
 blorp_flush_range(struct blorp_batch *batch, void *start, size_t size)
                                                    ^~~~~
../../SOURCE/master/src/mesa/drivers/dri/i965/genX_blorp_exec.c:197:66: warning: unused parameter ‘size’ [-Wunused-parameter]
 blorp_flush_range(struct blorp_batch *batch, void *start, size_t size)
                                                                  ^~~~

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

nir: Silence unused parameter warnings in generated nir_constant_expressions code

Reduces my build from 2075 warnings to 2023 warnings by silencing 52
instances of things like

src/compiler/nir/nir_constant_expressions.c: In function ‘evaluate_bfi’:
src/compiler/nir/nir_constant_expressions.c:1812:61: warning: unused parameter ‘bit_size’ [-Wunused-parameter]
 evaluate_bfi(MAYBE_UNUSED unsigned num_components, unsigned bit_size,
                                                             ^~~~~~~~

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

i965: Silence unused parameter warnings in generated OA code

Reduces my build from 6301 warnings to 2075 warnings by silencing 4226
instances of things like

src/mesa/drivers/dri/i965/i965@sta/brw_oa_hsw.c: In function ‘hsw__render_basic__gpu_core_clocks__read’:
src/mesa/drivers/dri/i965/i965@sta/brw_oa_hsw.c:41:62: warning: unused parameter ‘brw’ [-Wunused-parameter]
 hsw__render_basic__gpu_core_clocks__read(struct brw_context *brw,
                                                              ^~~

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

i965: Silence warnings about mixing enum and non-enum in conditional

Reduces my build from 6451 warnings to 6301 warnings by silencing 150
instances of

../../SOURCE/master/src/intel/compiler/brw_inst.h: In function ‘brw_reg_type brw_inst_src1_type(const gen_device_info*, const brw_inst*)’:
../../SOURCE/master/src/intel/compiler/brw_inst.h:802:55: warning: enumeral and non-enumeral type in conditional expression [-Wextra]
    unsigned file = __builtin_strcmp("dst", #reg) == 0 ?                       \
                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
                    BRW_GENERAL_REGISTER_FILE :                                \
                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                    brw_inst_##reg##_reg_file(devinfo, inst);                  \
                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../SOURCE/master/src/intel/compiler/brw_inst.h:811:1: note: in expansion of macro ‘REG_TYPE’
 REG_TYPE(src1)
 ^~~~~~~~

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

intel/compiler: Silence unused parameter warnings in release builds

Reduces my build from 7005 warnings to 6451 warnings by silencing 554
instances of

In file included from ../../SOURCE/master/src/intel/compiler/brw_disasm.c:28:0:
../../SOURCE/master/src/intel/compiler/brw_inst.h: In function ‘brw_inst_3src_a1_src0_imm’:
../../SOURCE/master/src/intel/compiler/brw_inst.h:346:57: warning: unused parameter ‘devinfo’ [-Wunused-parameter]
 brw_inst_3src_a1_src0_imm(const struct gen_device_info *devinfo,
                                                         ^~~~~~~
../../SOURCE/master/src/intel/compiler/brw_inst.h: In function ‘brw_inst_3src_a1_src2_imm’:
../../SOURCE/master/src/intel/compiler/brw_inst.h:354:57: warning: unused parameter ‘devinfo’ [-Wunused-parameter]
 brw_inst_3src_a1_src2_imm(const struct gen_device_info *devinfo,
                                                         ^~~~~~~
../../SOURCE/master/src/intel/compiler/brw_inst.h: In function ‘brw_inst_set_3src_a1_src0_imm’:
../../SOURCE/master/src/intel/compiler/brw_inst.h:362:61: warning: unused parameter ‘devinfo’ [-Wunused-parameter]
 brw_inst_set_3src_a1_src0_imm(const struct gen_device_info *devinfo,
                                                             ^~~~~~~
../../SOURCE/master/src/intel/compiler/brw_inst.h: In function ‘brw_inst_set_3src_a1_src2_imm’:
../../SOURCE/master/src/intel/compiler/brw_inst.h:370:61: warning: unused parameter ‘devinfo’ [-Wunused-parameter]
 brw_inst_set_3src_a1_src2_imm(const struct gen_device_info *devinfo,
                                                             ^~~~~~~
../../SOURCE/master/src/intel/compiler/brw_inst.h: In function ‘brw_inst_imm_uq’:
../../SOURCE/master/src/intel/compiler/brw_inst.h:703:47: warning: unused parameter ‘devinfo’ [-Wunused-parameter]
 brw_inst_imm_uq(const struct gen_device_info *devinfo, const brw_inst *insn)
                                               ^~~~~~~
In file included from ../../SOURCE/master/src/intel/compiler/brw_shader.h:29:0,
                 from ../../SOURCE/master/src/intel/compiler/brw_disasm.c:29:
../../SOURCE/master/src/intel/compiler/brw_compiler.h: In function ‘brw_stage_has_packed_dispatch’:
../../SOURCE/master/src/intel/compiler/brw_compiler.h:1277:61: warning: unused parameter ‘devinfo’ [-Wunused-parameter]
 brw_stage_has_packed_dispatch(const struct gen_device_info *devinfo,
                                                             ^~~~~~~
../../SOURCE/master/src/intel/compiler/brw_disasm.c: In function ‘src_ia1’:
../../SOURCE/master/src/intel/compiler/brw_disasm.c:849:18: warning: unused parameter ‘_reg_file’ [-Wunused-parameter]
         unsigned _reg_file,
                  ^~~~~~~~~

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

i965: Silence unused parameter warnings

Reduces my build from 7119 warnings to 7005 warnings by silencing 114
instances of

In file included from ../../SOURCE/master/src/mesa/drivers/dri/i965/brw_context.h:46:0,
                 from ../../SOURCE/master/src/mesa/drivers/dri/i965/intel_pixel_read.c:38:
../../SOURCE/master/src/mesa/drivers/dri/i965/brw_bufmgr.h: In function ‘brw_bo_unmap’:
../../SOURCE/master/src/mesa/drivers/dri/i965/brw_bufmgr.h:258:47: warning: unused parameter ‘bo’ [-Wunused-parameter]
 static inline int brw_bo_unmap(struct brw_bo *bo) { return 0; }
                                               ^~

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

intel: Drop program size pointer from vec4/fs assembly getters.

These days, we're just passing a pointer to a prog_data field, which
we already have access to.  We can just use it directly.

(In the past, it was a pointer to a separate value.)

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>

i965: Mark upload buffers with MAP_ASYNC and MAP_PERSISTENT.

This should have no practical impact.  For the default uploader, we
don't really care, but for others, we may want to append more data
as the GPU is reading existing data, which means we need async and
persistent flags.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>

i965: Generalize intel_upload.c to support multiple uploaders.

I'd like to reuse the upload logic for a new program cache, but the
buffers will need to have a different lifetime than the default
uploader, and also some address space restrictions.  So, we can't
use a single uploader for both situations - we'll need two of them.

This creates a public 'uploader' structure, and adjusts the interface
to take an uploader rather than always using brw->upload.  It should
have no functional change at the moment.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>

intel/compiler: Memory fence commit must always be enabled for gen10+

Commit bit in the message descriptor (Bit 13) must be always set
to true in CNL+ for memory fence messages. It also fixes a piglit
GPU hang on cnl+ in simulation environment.
Piglit test: arb_shader_image_load_store-shader-mem-barrier
See HSD ES # 1404612949

Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Francisco Jerez <currojerez@riseup.net>

Revert "i965/fs: Predicate byte scattered writes if needed"

This reverts commit a4031bdfa927fb4c3c5d0bdadc70634f3c1a5eac.  It's
redundant with the sample mask predication done at this point by the
common logical send lowering infrastructure, and rather buggy because
it wasn't applying the correct sample mask in shaders using discard,
since the dispatch mask returned by FS_OPCODE_MOV_DISPATCH_TO_FLAGS
doesn't reflect samples discarded by the shader, so it could have led
to data corruption in fragment shader invocations that execute discard
based on a non-dynamically uniform condition.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

intel/fs: Handle surface opcode sample masks via predication.

The main motivation is to enable HDC surface opcodes on ICL which no
longer allows the sample mask to be provided in a message header, but
this is enabled all the way back to IVB when possible because it
decreases the instruction count of some shaders using HDC messages
significantly, e.g. one of the SynMark2 CSDof compute shaders
decreases instruction count by about 40% due to the removal of header
setup boilerplate which in turn makes a number of send message
payloads more easily CSE-able.  Shader-db results on SKL:

 total instructions in shared programs: 15325319 -> 15314384 (-0.07%)
 instructions in affected programs: 311532 -> 300597 (-3.51%)
 helped: 491
 HURT: 1

Shader-db results on BDW where the optimization needs to be disabled
in some cases due to hardware restrictions:

 total instructions in shared programs: 15604794 -> 15598028 (-0.04%)
 instructions in affected programs: 220863 -> 214097 (-3.06%)
 helped: 351
 HURT: 0

The FPS of SynMark2 CSDof improves by 5.09% ±0.36% (n=10) on my SKL
laptop with this change.  According to Eero this improves performance
of the same test by 9% on BYT and by 7-8% on BXT J4205 and on SKL GT2
desktop.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Tested-By: Eero Tamminen <eero.t.tamminen@intel.com>

intel/eu: Plumb header present bit to codegen helpers for HDC messages.

This makes sure that the header-present bit of the message descriptor
is in sync with the IR instruction fields, which gives the optimizer
more control to avoid the overhead of setting up a message header when
it's possible to do so.

Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

intel/ir: Allow arbitrary scratch flag registers for SHADER_OPCODE_FIND_LIVE_CHANNEL.

This shouldn't cause any functional change at this point, it changes
SHADER_OPCODE_FIND_LIVE_CHANNEL to use the flag register specified at
the IR level instead of the hard-coded f1.0, now that it can be
represented in backend_instruction::flag_subreg.  This will be
necessary for scheduling to behave correctly once more things start
making use of f1.0.

Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

intel/ir: Allow representing additional flag subregisters in the IR.

This allows representing conditional mods and predicates on f1.0-f1.1
at the IR level by adding an extra bit to the flag_subreg
backend_instruction field.

Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

intel/l3: Don't allocate SLM partition on ICL+.

SLM has a chunk of special-purpose memory separate from L3 on ICL+, we
shouldn't allocate a partition for it on L3 anymore.

Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

svga: add SVGA_NEW_PRESCALE to the tracked dirty mask for gs

Since geometry shader also consumes prescale constants, the
geometry shader constant buffer will need to be updated when prescale
factor is changed.

Reviewed-by: Brian Paul <brianp@vmware.com>

svga: fix blending regression

The earlier Mesa commit 3d06c8afb5 ("st/mesa: don't translate blend
state when it's disabled for a colorbuffer") subtly changed the
details of gallium's per-RT blend state.

In particular, when pipe_rt_blend_state[i].blend_enabled is true,
we have to get the src/dst blend terms from pipe_rt_blend_state[i],
not [0] as before.

We now have to scan the blend targets to find the first one that's
enabled (if any).  We have to use the index of that target for getting
the src/dst blend terms.  And note that we have to set identical blend
terms for all targets.

This fixes the Piglit fbo-drawbuffers2-blend test.  VMware bug 2063493.

Reviewed-by: Charmaine Lee <charmainel@vmware.com>

svga: check svga_have_vgpu10() in svga_delete_blend_state()

We were calling SVGA3D_vgpu10_DestroyBlendState() when vgpu10 was not
enabled (bs->id==0 by default), resulting in lots of device errors.

Reviewed-by: Neha Bhende<bhenden@vmware.com>

svga: if svga_update_state() fails, skip the draw call

If svga_update_state() fails, we flush the command buffer and retry.
If it fails again, it likely means we were unable to translate a shader
for some reason (uses too many resources, for example).  In that case,
let's just skip the draw call.  The alternative, just disabling the
shader stage in question, would certainly lead to bad rendering anyway,
and probably device errors.

Fixes failed assertion running Piglit glsl-1.50/execution/
variable-indexing/gs-output-array-vec4-index-wr.shader_test since it
uses too many GS output registers (though the test still fails).
VMware bug 2063492.

v2: also call pipe_debug_message() so apps or apitrace can be notified
when this issue occurs.
v3: use svga_update_state_retry().

Reviewed-by: Charmaine Lee <charmainel@vmware.com>
Reviewed-by: Neha Bhende <bhenden@vmware.com>

svga: let svga_update_state_retry() return a bool

This will allow minor simplifications elsewhere.

Reviewed-by: Charmaine Lee <charmainel@vmware.com>
Reviewed-by: Neha Bhende <bhenden@vmware.com>

svga: s/unsigned/boolean/ for a few local vars

Reviewed-by: Charmaine Lee <charmainel@vmware.com>

meson: install vulkan_intel.h header

Fixes: d1992255bb29054fa51763376d125183a9f602f3
       ("meson: Add build Intel "anv" vulkan driver")
Signed-off-by: Dylan Baker <dylan.c.baker@intel.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

st/omx_bellagio: add picture profile and entry point

Profile and entry point were missing in the picture structure.
Therefore, add them back.

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>

radeonsi: fix radeon create encoder return

Previous patch missed a "return" when trying to modify the create encoder
function, which made the whole logic fail. Therefore, add the return back.

Fixes: b38b208ff8886e799d6a2 "radeonsi:create uvd hevc enc entry"
Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>

loader: Add support for platform and host1x busses

ARM SoCs usually have their DRM/KMS devices on the platform bus, so add
support for this bus in order to allow use of the DRI_PRIME environment
variable with those devices.

While at it, also support the host1x bus, which is effectively the same
but uses an additional layer in the bus hierarchy.

Note that it isn't enough to support the bus that has the rendering GPU
because the loader code will also try to construct an ID path tag for a
scanout-only device if it is the default that is being opened.

The ID path tag for a device can be obtained by running udevadm info on
the device node, as shown in this example on NVIDIA Tegra:

$ udevadm info /dev/dri/card0 | grep ID_PATH_TAG
E: ID_PATH_TAG=platform-50000000_host1x

The corresponding OF_FULLNAME property, from which the ID_PATH_TAG is
constructed, can be found in the sysfs "uevent" attribute for the card0
device's parent:

$ grep OF_FULLNAME /sys/devices/platform/50000000.host1x/drm/uevent
OF_FULLNAME=/host1x@50000000

Similarily, /dev/dri/card1 corresponds to the GPU:

$ udevadm info /dev/dri/card1 | grep ID_PATH_TAG
E: ID_PATH_TAG=platform-57000000_gpu

and:

$ grep OF_FULLNAME /sys/devices/platform/57000000.gpu/uevent
OF_FULLNAME=/gpu@57000000

Changes in v2:
- avoid confusing pre-increment in strdup()
- add examples of tags to commit message

Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

disk cache: Link with -latomic if necessary

The disk cache implementation uses 64-bit atomic operations. For some
architectures, such as 32-bit ARM, GCC will not be able to translate
these operations into atomic, lock-free instructions and will instead
rely on the external atomics library to provide these operations.

Check at configuration time whether or not linking against libatomic
is necessary and if so, create a dependency that can be used while
linking the mesautil library.

This is the meson equivalent of 2ef7f23820a6 ("configure: check if
-latomic is needed for __atomic_*").

For some background information on this, see:

https://gcc.gnu.org/wiki/Atomic/GCCMM

Changes in v2:
- clarify meaning of lock-free in commit message
- fix build if -latomic is not necessary

Acked-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

radv: do not set pending_reset_query in BeginCommandBuffer()

This is just useless for two reasons:
1) flush_bits is not set accordingly, so nothing will be flushed
   in BeginQuery().
2) we always flush caches in EndCommandBuffer(), so if a reset
   is done in a previous command buffer we are safe.

Cc: "18.0" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Alex Smith <asmith@feralinteractive.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

r600/cayman: fix fragcood loading recip generation.

This fixes some hangs seen where the recip_ieee opcodes would
end up split across the wrong slots.

Cc: <mesa-stable@lists.freedesktop.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

i965: Allow 48-bit addressing on Gen8+.

This allows most GPU objects to use the full 48-bit address space
offered by Gen8+ platforms, rather than being stuck with 32-bit.
This expands the available GPU memory from 4G to 256TB or so.

A few objects - instruction, scratch, and vertex buffers - need to
remain pinned in the low 4GB of the address space for various reasons.
We default everything to 48-bit but disable it in those cases.

Thanks to Jason Ekstrand for blazing this trail in anv first and
finding the nasty undocumented hardware issues.  This patch simply
rips off all of his findings.

Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>

i965: Shorten the name of the workaround BO.

This makes the name shorter in debug printouts.  If "workaround_bo"
is good enough for the code, it's probably good enough for debugging.

i965: Add debugging code to dump the validation list.

When anything goes wrong with this code, dumping the validation list
is a useful way to figure out what's happening.

intel/fs: Set up sampler message headers in the visitor on gen7+

This gives the scheduler visibility into the headers which should
improve scheduling.  More importantly, however, it lets the scheduler
know that the header gets written.  As-is, the scheduler thinks that a
texture instruction only reads it's payload and is unaware that it may
write to the first register so it may reorder it with respect to a read
from that register.  This is causing issues in a couple of Dota 2 vertex
shaders.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104923
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Francisco Jerez <currojerez@riseup.net>

ac: fix nir_intrinsic_shared_atomic_comp_swap handling

Following on from 49879f377870 this makes sure we use the correct
src index.

Fixes cts test:
KHR-GL46.compute_shader.atomic-case3

Reviewed-by: Dave Airlie <airlied@redhat.com>

st/glsl_to_nir: simplify st_nir_assign_var_locations() and fix for fs outputs

We only need to check for previously processed location on user
defined varyings as they are the only ones that support component
packing. Therefore a single instance of processed_locs can be
shared by regular varyings and patches.

For simplicity we make processed_locs an array in order to handle
dual source bleanding.

Fixes the follow piglit test on radeonsi:
tests/spec/arb_enhanced_layouts/execution/component-layout/fs-output.shader_test

Reviewed-by: Dave Airlie <airlied@redhat.com>

anv: Enable MSAA fast-clears

This speeds up the Sascha Willems multisampling demo by around 25% when
using 8x or 16x MSAA.

Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

anv/cmd_buffer: Add support for MCS fast-clears and resolves

Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

anv/cmd_buffer: Add helpers for computing resolve predicates

We'll want to re-use the complex resolve predicate computations for MCS
resolves so it's nice to have them as helper functions.

Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

anv/cmd_buffer: Handle MCS identical to CCS_E in compute_aux_usage

This doesn't actually do anything because att_state->fast_clear is
determined based on the return value of anv_layout_to_fast_clear_type
which currently returns NONE for multisampled images.

Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

anv/blorp: Pass the clear address to blorp for subpass MSAA resolves

Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

anv/blorp: Allow indirect clear colors on blorp sources on gen7

Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

anv/blorp: Add partial clear support to anv_image_mcs_op

Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

intel/blorp: Add indirect clear color support to mcs_partial_resolve

This is a bit complicated because we have to get the indirect clear
color in there somehow.  In order to not do any more work in the shader
than needed, we set it up as it's own vertex binding which points
directly at the clear color address specified by the client.

Acked-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

intel/blorp: Add a helper for filling out VERTEX_BUFFER_STATE

There are enough #ifs in there that it's kind-of pointless to duplicate
it for each buffer.

Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

i965: Fix RELOC_WRITE typo in brw_store_data_imm64()

Fixes: 6c530ad11605
("i965: Reduce passing 2x32b of reloc_domains to 2 bits")

Signed-off-by: Andriy Khulap <andriy.khulap@globallogic.com>
Signed-off-by: Vadym Shovkoplias <vadym.shovkoplias@globallogic.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

gallium/util: use sockets on PIPE_OS_UNIX in u_network

Instead of listing all the UNIX PIPE_OS platforms just use
PIPE_OS_UNIX.  Makes BSD sockets available on PIPE_OS_BSD.

Signed-off-by: Jonathan Gray <jsg@jsg.id.au>
Reviewed-by: Brian Paul <brianp@vmware.com>

util: use clock_gettime() on PIPE_OS_BSD

OpenBSD, FreeBSD, NetBSD and DragonFlyBSD all have clock_gettime()
so use it when PIPE_OS_BSD is defined.

Signed-off-by: Jonathan Gray <jsg@jsg.id.au>
Reviewed-by: Brian Paul <brianp@vmware.com>

nir/search: Include 8 and 16-bit support in construct_value

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

nir/search: Support 8 and 16-bit constants in match_value

Reviewed-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>

travis: make Meson find the proper llvm-config

Travis CI has moved to LLVM 5.0, and meson is detecting automatically
the available version in /usr/local/bin based on the PATH env variable
order preference.

As for 0.44.x, Meson cannot receive the path to the llvm-config binary
as a configuration parameter. See
https://github.com/mesonbuild/meson/issues/2887 and
https://github.com/dcbaker/meson/commit/7c8b6ee3fa42f43c9ac7dcacc61a77eca3f1bcef

We want to use the custom (APT) installed version. Therefore, let's
make Meson find our wanted version sooner than the one at
/usr/local/bin

Once this is corrected, we would still need a patch similar to:
https://lists.freedesktop.org/archives/mesa-dev/2017-December/180217.html

v2: Create the link only to the specificly wanted LLVM version (Gert).

Cc: Eric Engestrom <eric.engestrom@imgtec.com>
Cc: Dylan Baker <dylan@pnwbakers.com>
Cc: Emil Velikov <emil.velikov@collabora.com>
Cc: Juan A. Suarez Romero <jasuarez@igalia.com>
Cc: Gert Wollny <gw.fossdev@gmail.com>
Cc: Jon Turney <jon.turney@dronecode.org.uk>
Signed-off-by: Andres Gomez <agomez@igalia.com>
Reviewed-and-Tested-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Reviewed-by: Juan A. Suarez <jasuarez@igalia.com>
Reviewed-By: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

meson: fix LLVM version detection when <= 3.4

3 digits versions in LLVM only started from 3.4.1 on.

Hence, even if you can perfectly build with an old LLVM (< 3.4.1) in
the system while not needing LLVM at all (auto), when passing through
the LLVM version detection code, meson will fail when accessing
"_llvm_version[2]" due to:

"Index 2 out of bounds of array of size 2."

v2: Properly compare LLVM version and set patch version to 0
    if < 3.4.1 (Eric).

v3: Improve the commit log explanation (Eric).

Cc: Dylan Baker <dylan@pnwbakers.com>
Cc: Eric Engestrom <eric.engestrom@imgtec.com>
Signed-off-by: Andres Gomez <agomez@igalia.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>

i965/sbe: fix number of inputs for active components

In 16631ca30ea6 we fixed gen9 active components to account for padded
inputs in the URB, which we can have with SSO programs. To do that,
instead of going through the bitfield of inputs (which doesn't include
padding information), we compute the number of inputs from the size
of the URB entry.

Unfortunately, there are some special inputs that are not stored in
the URB and that we also need to account for. These special inputs
are identified and handled during calculate_attr_overrides().

Instead of keeping track of the exact number of inputs, we just
program active components for all possible inputs like we do in
anvil.

This fixes a regression in a WebGL program that uses Point Sprite
functionality (specifically, VARYING_SLOT_PNTC).

v2:
 - Add 'Fixes' tag (Mark Janes)
 - make no_vue_inputs int instead of uint32_t, and add const qualifier
   to num_inputs variable (Ian)

v3:
 - Do not try to count inputs correctly, just program all input
   slots like we do in anvil (Ken)

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105224
Fixes: 16631ca30ea6 (i965/sbe: fix active components for SSO programs with over 16 inputs)
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

radv: only emit cache flushes when the pool size is large enough

This is an optimization which reduces the number of flushes for
small pool buffers.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

radv: keep track of the query pool size

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

radv: make sure to emit cache flushes before starting a query

If the query pool has been previously resetted using the compute
shader path.

Fixes: a41e2e9cf5 ("radv: allow to use a compute shader for resetting the query pool")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105292
Cc: "18.0" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

nir/serialize: handle var->name being NULL

var->name could be NULL under ARB_gl_spirv for example. And in any
case, the code is already handing var name being NULL when reading a
variable, so it is consistent to do it writing a variable too.

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

anv: Enable VK_KHR_16bit_storage for PushConstant

Enables storagePushConstant16 features of VK_KHR_16bit_storage for Gen8+.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

spirv/i965/anv: Relax push constant offset assertions being 32-bit aligned

The introduction of 16-bit types with VK_KHR_16bit_storages implies that
push constant offsets could be multiple of 2-bytes. Some assertions are
updated so offsets should be just multiple of size of the base type but
in some cases we can not assume it as doubles aren't aligned to 8 bytes
in some cases.

For 16-bit types, the push constant offset takes into account the
internal offset in the 32-bit uniform bucket adding 2-bytes when we access
not 32-bit aligned elements. In all 32-bit aligned cases it just becomes 0.

v2: Assert offsets to be aligned to the dest type size. (Jason Ekstrand)

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

spirv: Calculate properly 16-bit vector sizes

Range in 16-bit push constants load was being calculated
wrongly using 4-bytes per element instead of 2-bytes as it
should be.

v2: Use glsl_get_bit_size instead of if statement
    (Jason Ekstrand)

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

anv: Enable VK_KHR_16bit_storage for SSBO and UBO

Enables storageBuffer16BitAccess and uniformAndStorageBuffer16BitAccesss
features of VK_KHR_16bit_storage for Gen8+.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

i965/fs: Support 16-bit store_ssbo with VK_KHR_relaxed_block_layout

Restrict the use of untyped_surface_write with 16-bit pairs in
ssbo to the cases where we can guarantee that offset is multiple
of 4.

Taking into account that VK_KHR_relaxed_block_layout is available
in ANV we can only guarantee that when we have a constant offset
that is multiple of 4. For non constant offsets we will always use
byte_scattered_write.

v2: (Jason Ekstrand)
    - Assert offset_reg to be multiple of 4 if it is immediate.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

i965/fs: Support 16-bit do_read_vector with VK_KHR_relaxed_block_layout

16-bit load_ubo/ssbo operations that call do_untyped_read_vector don't
guarantee that offsets are multiple of 4-bytes as required by untyped_read
message. This happens for example in the case of f16mat3x3 when then
VK_KHR_relaxed_block_layout is enabled.

Vectors reads when we have non-constant offsets are implemented with
multiple byte_scattered_read messages that not require 32-bit aligned offsets.

Now for all constant offsets we can use the untyped_read_surface message.
In the case of constant offsets not aligned to 32-bits, we calculate a
start offset 32-bit aligned and use the shuffle_32bit_load_result_to_16bit_data
function and the first_component parameter to skip the copy of the unneeded
component.

v2: (Jason Ekstrand)
    Use untyped_read_surface messages always we have constant offsets.

v3: (Jason Ekstrand)
    Simplify loop for reads with non constant offsets.
    Use end - start to calculate the number of 32-bit components to read with
    constant offsets.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

i965/fs: shuffle_32bit_load_result_to_16bit_data now skips components

This helper used to load 16bit components from 32-bits read now allows
skipping components with the new parameter first_component. The semantics
now skip components until we reach the first_component, and then reads the
number of components passed to the function.

All previous uses of the helper are updated to use 0 as first_component.
This will allow read 16-bit components when the first one is not aligned
32-bit. Enabling more usages of untyped_reads with 16-bit types.

v2: (Jason Ektrand)
    Change parameters order to first_component, num_components

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

isl/i965/fs: SSBO/UBO buffers need size padding if not multiple of 32-bit

The surfaces that backup the GPU buffers have a boundary check that
considers that access to partial dwords are considered out-of-bounds.
For example, buffers with 1,3 16-bit elements has size 2 or 6 and the
last two bytes would always be read as 0 or its writting ignored.

The introduction of 16-bit types implies that we need to align the size
to 4-bytew multiples so that partial dwords could be read/written.
Adding an inconditional +2 size to buffers not being multiple of 2
solves this issue for the general cases of UBO or SSBO.

But, when unsized arrays of 16-bit elements are used it is not possible
to know if the size was padded or not. To solve this issue the
implementation calculates the needed size of the buffer surfaces,
as suggested by Jason:

surface_size = isl_align(buffer_size, 4) +
               (isl_align(buffer_size, 4) - buffer_size)

So when we calculate backwards the buffer_size in the backend we
update the resinfo return value with:

buffer_size = (surface_size & ~3) - (surface_size & 3)

It is also exposed this buffer requirements when robust buffer access
is enabled so these buffer sizes recommend being multiple of 4.

v2: (Jason Ekstrand)
    Move padding logic fron anv to isl_surface_state.
    Move calculus of original size from spirv to driver backend.
v3: (Jason Ekstrand)
    Rename some variables and use a similar expresion when calculating.
    padding than when obtaining the original buffer size.
    Avoid use of unnecesary component call at brw_fs_nir.
v4: (Jason Ekstrand)
    Complete comment with buffer size calculus explanation in brw_fs_nir.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

vbo: Remove vbo_save_vertex_list::vertex_size.

Like before use local variables from compile_vertex_list instead.
Remove vertex_size from struct vbo_save_vertex_list.

Reviewed-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Mathias Fröhlich <Mathias.Froehlich@web.de>

vbo: Remove vbo_save_vertex_list::buffer_offset.

The buffer_offset is used in aligned_vertex_buffer_offset.
But now that most of these decisions are done in compile_vertex_list
we can work on local variables instead of struct members in the
display list code. Clean that up and remove buffer_offset.

Reviewed-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Mathias Fröhlich <Mathias.Froehlich@web.de>