Commit Graph

98462 Commits

Author SHA1 Message Date
Eric Engestrom 31d403160f meson: fix keyword argument in declare_dependency()
`declare_dependency()` takes `compile_args`, not `c_args`.
It was correct in all the other `declare_dependency()` from that commit.

Fixes: 0bbecc5a85 "meson: define driver dependencies"
Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
2017-12-06 18:31:33 +00:00
Emil Velikov 526945f7dc i965: include brw_pipe_control.h in the tarball
Fixes: bfe0f3a702 ("i965: Move PIPE_CONTROL defines and prototypes to
brw_pipe_control.h.")
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
2017-12-06 17:33:57 +00:00
Emil Velikov e964e01fdd mesa: document _mesa_extension_override_* variables
Currently there are no users of these outside of extensions.c.
Provide some information why they exist and how to use them.

Cc: Jordan Justen <jordan.l.justen@intel.com>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Andres Gomez <agomez@igalia.com>
2017-12-06 17:31:53 +00:00
Emil Velikov d7ba4f41f9 docs: annotate MESA_program_debug as obsolete
It has been obsolete for years - state it explicitly.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
2017-12-06 17:31:53 +00:00
George Kyriazis bc75adcb1e swr/scons: Fix another intermittent build failure
gen_BackendPixelRate*.cpp depends on gen_ar_eventhandler.hpp.
Fix missing dependency.

Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>
2017-12-06 11:04:02 -06:00
Marek Olšák 4038db72d4 radeonsi: make const and stream uploaders allocate read-only memory
and anything that clones these uploaders, like u_threaded_context.

Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
2017-12-06 15:19:02 +01:00
Marek Olšák 7a6643fb4c radeonsi: use a separate allocator for fine fences
Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
2017-12-06 15:19:02 +01:00
Marek Olšák 3e1287caef radeonsi/gfx9: make shader binaries use read-only memory
Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
2017-12-06 15:19:02 +01:00
Marek Olšák fef51ebcea winsys/amdgpu: make IBs use read-only memory
Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
2017-12-06 15:19:02 +01:00
Marek Olšák ba59064409 radeonsi: print the buffer list for CHECK_VM
Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
2017-12-06 15:19:02 +01:00
Marek Olšák 010214b403 radeonsi: allow DMABUF exports for local buffers
Cc: 17.3 <mesa-stable@lists.freedesktop.org>
Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
2017-12-06 15:19:02 +01:00
Nicolai Hähnle 20ccb51ffc radeonsi: always place sparse buffers in VRAM
Together with "radeonsi: fix the R600_RESOURCE_FLAG_UNMAPPABLE check",
this ensures that sparse buffers are placed in VRAM.

Noticed by an assertion that started triggering with commit d4fac1e1d7
("gallium/radeon: enable suballocations for VRAM with no CPU access")

Fixes KHR-GL45.sparse_buffer_tests.BufferStorageTest in debug builds.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>
2017-12-06 11:19:00 +01:00
Nicolai Hähnle 5e2962c949 radeonsi: fix the R600_RESOURCE_FLAG_UNMAPPABLE check
The flag is on the pipe_resource, not the r600_resource.

I don't see an obvious bug related to this, but it could potentially lead
to suboptimal placement of some resources.

Fixes: a41587433c ("gallium/radeon: add R600_RESOURCE_FLAG_UNMAPPABLE")
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>
2017-12-06 11:18:14 +01:00
Jose Maria Casanova Crespo a1e257a5bf i965/fs: Use untyped_surface_read for 16-bit load_ssbo
SSBO loads were using byte_scattered read messages as they allow
reading 16-bit size components. byte_scattered messages can only
operate one component at a time so we needed to emit as many messages
as components.

But for vec2 and vec4 of 16-bit, being multiple of 32-bit we can use the
untyped_surface_read message to read pairs of 16-bit components using only
one message. Once each pair is read it is unshuffled to return the proper
16-bit components. vec3 case is assimilated to vec4 but the 4th component
is ignored.

16-bit scalars are read using one byte_scattered_read message.

v2: Removed use of stride = 2 on sources (Jason Ekstrand)
    Rework optimization using unshuffle 16 reads (Chema Casanova)
v3: Use W and D types insead of HF and F in shuffle to avoid rounding
    erros (Jason Ekstrand)
    Use untyped_surface_read for 16-bit vec3. (Jason Ekstrand)
v4: Use subscript insead of chaging type and stride  (Jason Ekstrand)

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-12-06 08:57:18 +01:00
Jose Maria Casanova Crespo ce2e572c4c i965/fs: Optimize 16-bit SSBO stores by packing two into a 32-bit reg
Currently, we use byte-scattered write messages for storing 16-bit
into an SSBO. This is because untyped surface messages have a fixed
32-bit size.

This patch optimizes these 16-bit writes by combining 2 values (e.g,
two consecutive components aligned with 32-bits) into a 32-bit register,
packing the two 16-bit words.

16-bit single component values will continue to use byte-scattered
write messages. The same will happens when the first consecutive
component is not aligned 32-bits.

This optimization reduces the number of SEND messages used for storing
16-bit values potentially by 2 or 4, which cuts down execution time
significantly because byte-scattered writes are an expensive
operation as they only write a component for message.

v2: Removed use of stride = 2 on sources (Jason Ekstrand)
    Rework optimization using shuffle 16 write and enable writes
    of 16bit vec4 with only one message of 32-bits. (Chema Casanova)
v3: - Fix coding style (Eduardo Lima)
    - Reorganize code to avoid duplication. (Jason Ekstrand)
    - Include new comments to explain the length calculations to
      fix alignment issues of components. (Jason Ekstrand)
    - Fix issues with writemask yz with 16-bit writes. (Jason Ektrand)
v4: (Jason Ekstrand)
    - Reorganize 64-bit ssbo-writes to avoid using slots_per_component.
    - Comment about why suffle is needed when using byte_scattered_write.

Signed-off-by: Eduardo Lima <elima@igalia.com>
Signed-off-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-12-06 08:57:18 +01:00
Alejandro Piñeiro 66ce6ce78f anv: Enable SPV_KHR_16bit_storage and VK_KHR_16bit_storage for SSBO/UBO
Enables SPV_KHR_16bit_storage on gen 8+.

VK_KHR_16bit_storage is enabled for SSBO/UBO using the
VK_KHR_get_physical_device_properties2 functionality to expose
if the extension is supported or not.

v2: update due rebase against master (Alejandro)
v3: (Jason Ekstrand)
    - Move this patch up in VK_KHR_16bit_storage series enabling only
      storageBuffer16BitAccess and uniformAndStorageBuffer16BitAccess.
    - Only expose VK_KHR_16bit_storage on Gen8+
v4: (Jason Ekstrand)
    - Squash enable SPV_KHR_16bit_storage into VK_KHR_16bit_storage
      enablement for SSBO/UBO.

Signed-off-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
Signed-off-by: Alejandro Piñeiro <apinheiro@igalia.com>
Signed-off-by: Eduardo Lima Mitev <elima@igalia.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-12-06 08:57:18 +01:00
Jason Ekstrand 3282309f74 i965/fs: Enables 16-bit load_ubo with sampler
load_ubo is using 32-bit loads as uniforms surfaces have a 32-bit
surface format defined. So when reading 16-bit components with the
sampler we need to unshuffle two 16-bit components from each 32-bit
component.

Using the sampler avoids the use of the byte_scattered_read message
that needs one message for each component and is supposed to be
slower.

v2: (Jason Ekstrand)
    - Simplify component selection and unshuffling for different bitsizes
    - Remove SKL optimization of reading only two 32-bit components when
      reading 16-bits types.

Reviewed-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
2017-12-06 08:57:18 +01:00
Jose Maria Casanova Crespo 3db31c0b06 i965/fs: Helpers for un/shuffle 16-bit pairs in 32-bit components
This helpers are used to load/store 16-bit types from/to 32-bit
components.

The functions shuffle_32bit_load_result_to_16bit_data and
shuffle_16bit_data_for_32bit_write are implemented in a similar
way than the analogous functions for handling 64-bit types.

v1: Explain need of temporary in shuffle operations. (Jason Ekstrand)

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-12-06 08:57:18 +01:00
Jose Maria Casanova Crespo fa4a9d63bb i965/fs: Use byte scattered read for 16-bit load_ssbo
Used to enable 16-bit reads at do_untyped_vector_read, that is used on
the following intrinsics:

   * nir_intrinsic_load_shared
   * nir_intrinsic_load_ssbo

v2: Removed use of stride = 2 on 16-bit sources (Jason Ekstrand)

v3: - Add bitsize to scattered read operation (Jason Ekstrand)
    - Remove implementation of 16-bit UBO read from this patch.
    - Avoid assertion at opt_algebraic caused by ADD of two IMM with
      offset with BRW_REGISTER_TYPE_UD type found on matrix tests.
      (Jose Maria Casanova)
v4: (Jason Ekstrand)
    - Put if case for 16-bits at the beginning of the if ladder.
    - Use type_sz(dest.type) * 8 as bit_size parameter for scattered read.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-12-06 08:57:18 +01:00
Jose Maria Casanova Crespo c57a3f200d i965/fs: Add byte scattered read message and fs support
v2: Fix alignment style (Topi Pohjolainen)
    (Jason Ekstrand)
    - Enable bit_size parameter to scattered messages to enable different
      bitsizes byte/word/dword.
    - Remove use of brw_send_indirect_scattered_message in favor of
      brw_send_indirect_surface_message.
    - Move scattered messages to surface messages namespace.
    - Assert align1 for scattered messages and assume Gen8+.
    - Inline brw_set_dp_byte_scattered_read.

v3: (Jason Ekstrand)
    - Use renamed brw_byte_scattered_data_element_from_bit_size method
    - Assert scattered read for Gen8+ and Haswell.
    - Use conditional expresion at components_read.
    - Include comment about params for scattered opcodes.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-12-06 08:57:18 +01:00
Alejandro Piñeiro a4031bdfa9 i965/fs: Predicate byte scattered writes if needed
While on Untyped Surface messages the bits of the execution mask are
ANDed with the corresponding bits of the Pixel/Sample Mask, that is
not the case for byte scattered writes. That is needed to avoid ssbo
stores writing on helper invocations. So when that can affect, we load
the sample mask, and predicate the send message.

Note: the need for this patch was tested with a custom test. Right now
the 16 bit storage CTS tests doesnt need this path in order to get a
full pass.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-12-06 08:57:18 +01:00
Alejandro Piñeiro 96f1926aab i965/fs: Use byte_scattered_write on 16-bit store_ssbo
We need to rely on byte scattered writes as untyped writes are 32-bit
size. We could try to keep using 32-bit messages when we have two or
four 16-bit elements, but for simplicity sake, we use the same message
for any component number. We revisit this aproach in the follwing
patches.

v2: Removed use of stride = 2 on 16-bit sources (Jason Ekstrand)

v3: (Jason Ekstrand)
    - Include bit_size to scattered write message and remove namespace
    - specific for scattered messages.
    - Move comment to proper place.
    - Squashed with i965/fs: Adjust type_size/type_slots on store_ssbo.
    (Jose Maria Casanova)
    - Take into account that get_nir_src returns now WORD types for
      16-bit sources instead of DWORD.
v4: (Jason Ekstrand)
    - Rename lenght variable to num_components.
    - Include assertions before emit_untyped_write.
    - Remove type_slot in favor of num_slot and first_slot.

Signed-off-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
Signed-off-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-12-06 08:57:18 +01:00
Jose Maria Casanova Crespo f1a9936ee1 i965/fs: Add byte scattered write message and fs support
v2: (Jason Ekstrand)
    - Enable bit_size parameter to scattered messages to enable different
      bitsizes byte/word/dword.
    - Remove use of brw_send_indirect_scattered_message in favor of
      brw_send_indirect_surface_message.
    - Move scattered messages to surface messages namespace.
    - Assert align1 for scattered messages and assume Gen8+.
    - Inline brw_set_dp_byte_scattered_write.
v3: - Remove leftover newline (Topi Pohjolainen)
    - Rename brw_data_size to brw_scattered_data_element and use
      defines instead of an enum (Jason Ekstrand)
    - Assert scattered write for Gen8+ and Haswell (Jason Ekstrand)

Signed-off-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
Signed-off-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-12-06 08:57:18 +01:00
Alejandro Piñeiro d038deaa40 i965/fs: Add remove_extra_rounding_modes optimization
Although from SPIR-V point of view, rounding modes are attached to the
operation/destination, on i965 it is a status, so we don't need to
explicitly set the rounding mode if the one we want is already set.

Taking into account that the default mode is RTE, one possible
optimization would be optimize out the first RTE set for each
block. For in order to work, we would need to take into account block
interrelationships. At this point, it is not worth to complicate the
optimization for such small gain.

v2: Use a single SHADER_OPCODE_RND_MODE opcode taking an immediate
    with the rounding mode (Curro)
v3: Reset optimization for every block. (Jason Ekstrand)

Signed-off-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
Signed-off-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-12-06 08:57:18 +01:00
Alejandro Piñeiro 82fa4d45e7 i965/fs: Enable rounding mode on f2f16 ops
By default we don't set the rounding mode. We only set
round-to-near-even or round-to-zero mode if explicitly set from nir.

v2: Use a single SHADER_OPCODE_RND_MODE opcode taking an immediate
    with the rounding mode (Curro)

v3: Use new helper brw_rnd_mode_from_nir_op  (Jason Ekstrand)

Signed-off-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
Signed-off-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-12-06 08:57:18 +01:00
Alejandro Piñeiro d6cd14f213 i965/fs: Define new shader opcode to set rounding modes
Although it is possible to emit them directly as AND/OR on brw_fs_nir,
having a specific opcode makes it easier to remove duplicate settings
later.

v2: (Curro)
  - Set thread control to 'switch' when using the control register
  - Use a single SHADER_OPCODE_RND_MODE opcode taking an immediate
    with the rounding mode.
  - Avoid magic numbers setting rounding mode field at control register.
v3: (Curro)
  - Remove redundant and add missing whitespace lines.
  - Match printing instruction to IR opcode "rnd_mode"

v4: (Topi Pohjolainen)
  - Fix code style.

Signed-off-by:  Alejandro Piñeiro <apinheiro@igalia.com>
Signed-off-by:  Jose Maria Casanova Crespo <jmcasanova@igalia.com>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-12-06 08:57:18 +01:00
Jose Maria Casanova Crespo ac8d4734f6 i965: Add support for control register
Control register cr0 in i965 can be used to change the rounding modes
in 32-bit to 16-bit floating-point conversions.

From intel Skylake PRM, vol 07, section "Register and Tegister Regions",
 subsection "Control Register" (page 754):

"Subregister cr0.0:ud contains normal operation control fields such as the
 floating-point mode ... "

Floating-point Rounding mode is changed at bits 5:4 of cr0.0:

"Rounding Mode. This field specifies the FPU rounding mode. It is
initialized by Thread Dispatch."
  00b = Round to Nearest or Even (RTNE)
  01b = Round Up, toward +inf (RU)
  10b = Round Down, toward -inf (RD)
  11b = Round Toward Zero (RTZ)"

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-12-06 08:57:18 +01:00
Alejandro Piñeiro 5d5ee507fb i965/fs: Handle 32-bit to 16-bit conversions
Conversions to 16-bit need having aligment between the 16-bit
and 32-bit types. So the conversion operations unpack 16-bit types
to with an stride=2 and then applies a MOV with the conversion.

v2 (Jason Ekstrand):
  - Avoid the general use of stride=2 for 16-bit register types.

v3 (Topi Pohjolainen)
  - Code style fix
   (Jason Ekstrand)
  - Now nir_op_f2f16 was renamed to nir_op_f2f16_undef
    because conversion to f16 with undefined rounding is explicit

Signed-off-by: Eduardo Lima <elima@igalia.com>
Signed-off-by: Alejandro Piñeiro <apinheiro@igalia.com>
Signed-off-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-12-06 08:57:18 +01:00
Alejandro Piñeiro a05b6f25bf i965/fs: Remove BRW_REGISTER_TYPE_HF assert at get_exec_type
Note that we don't remove the assert at i965/vec4. At this point half
float support is only for the scalar backend.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-12-06 08:57:18 +01:00
Jose Maria Casanova Crespo 75a88d8567 i965: Support for 16-bit base types in helper functions
v2: Fixed calculation of scalar size for 16-bit types. (Jason Ekstrand)
v3: Fix coding style (Topi Pohjolainen)

Signed-off-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
Signed-off-by: Eduardo Lima <elima@igalia.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-12-06 08:57:18 +01:00
Alejandro Piñeiro 2d28ca7000 i965/vec4: Handle 16-bit types at type_size_xvec4
These types have similar vec4 sizes as their 32-bit counterparts.

The vec4 backend doesn't support 16-bit types and probably never will,
but this method is called by the scalar backend at
fs_visitor::nir_setup_outputs(), so we still need to provide valid vec4
sizes for 16-bit types. In the future, something different should be
implemented to avoid this dependency.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-12-06 08:57:18 +01:00
Eduardo Lima Mitev 4049c04122 spirv/nir: Add support for SPV_KHR_16bit_storage
v2: Minor changes after rebase against recent master (Alejandro
    Pinheiro)

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-12-06 08:57:18 +01:00
Jose Maria Casanova Crespo e0667a8bd8 spirv: Enable FPRoundingMode decorator to nir operations
SpvOpFConvert now manages the FPRoundingMode decorator for the
returning values enabling the nir_rounding_mode in the conversion
operation to fp16 values.

v2: Fixed breaking of specialization constants. (Jason Ekstrand)

v3: Avoid nir_rounding_mode * casting. (Jason Ekstrand)

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-12-06 08:57:18 +01:00
Eduardo Lima Mitev 549894a681 spirv/nir: Handle 16-bit types
v2: Added more missing implementations of 16-bit types. (Jason Ekstrand)

v3: Store values in values[0].u16[i] (Jason Ekstrand)
    Include switches based on bitsize for 16-bit types
    (Chema Casanova)
v4: Coding style fixes (Jason Ekstrand)
    Use vtn_u64_literal and u64[0] at 64-bit SpvOpConstant (Jason Ekstrand)

Signed-off-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
Signed-off-by: Eduardo Lima <elima@igalia.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-12-06 08:57:18 +01:00
Jose Maria Casanova Crespo 1f440d00d2 nir: Handle fp16 rounding modes at nir_type_conversion_op
nir_type_conversion enables new operations to handle rounding modes to
convert to fp16 values. Two new opcodes are enabled nir_op_f2f16_rtne
and nir_op_f2f16_rtz.

The undefined behaviour doesn't has any effect and uses the original
nir_op_f2f16 operation.

v2: Indentation fixed (Jason Ekstrand)

v3: Use explicit case for undefined rounding and assert if
    rounding mode is used for non 16-bit float conversions
    (Jason Ekstrand)

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-12-06 08:57:18 +01:00
Eduardo Lima Mitev 2af63683bc nir: Populate conversion opcodes to 16-bit types
This will include the following NIR ALU opcodes:
 * nir_op_i2i16
 * nir_op_i2f16
 * nir_op_u2u16
 * nir_op_u2f16
 * nir_op_f2i16
 * nir_op_f2u16
 * nir_op_f2f16

v2: Remove "from" 16-bit in commit subject (Topi Pohjolainen)

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-12-06 08:57:18 +01:00
Jose Maria Casanova Crespo d711445430 nir: Add rounding modes enum
v2: Added comments describing each of the rounding modes. (Jason
    Ekstrand)

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-12-06 08:57:18 +01:00
Eduardo Lima Mitev 5165e222d1 nir: Add support for 16-bit types (half float, int16 and uint16)
v2: Renamed glsl_half_float_type() to glsl_float16_t_type().
    (Jason Ekstrand)

Signed-off-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
Signed-off-by: Eduardo Lima <elima@igalia.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-12-06 08:57:18 +01:00
Eduardo Lima Mitev 52b10c7f20 mesa/st: Handle 16-bit types at st_glsl_storage_type_size()
This is basically to avoid "not handle in switch" warnings.

v2: Let the new types hit the assertion instead. (Marek Olšák
    and Jason Ekstrand)

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-12-06 08:57:18 +01:00
Eduardo Lima Mitev 59f458cd87 glsl: Add 16-bit types
Adds new INT16, UINT16 and FLOAT16 base types.

The corresponding GL types for half floats were reused from the
AMD_gpu_shader_half_float extension. The int16 and uint16 types come from
NV_gpu_shader_5 extension.

This adds the builtins and the lexer support.

To avoid a bunch of warnings due to cases not handled in switch, the
new types have been added to a few places using same behavior as
their 32-bit counterparts, except for a few trivial cases where they are
already handled properly. Subsequent patches in this set will provide
correct 16-bit implementations when needed.

v2: * Use FLOAT16 instead of HALF_FLOAT as name of the base type.
    * Removed float16_t from builtin types.
    * Don't copy 16-bit types as if they were 32-bit values in
      copy_constant_to_storage().
    * Use get_scalar_type() instead of adding a new custom switch
      statement.
    (Jason Ekstrand)
v3: Use GL_FLOAT16_NV instead of GL_HALF_FLOAT for consistency
    (Ilia Mirkin)
v4: Add missing 16-bit base types support in glsl_to_nir (Eduardo Lima).
v5: Fix coding style (Topi Poholainen).

Signed-off-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
Signed-off-by: Eduardo Lima <elima@igalia.com>
Signed-off-by: Alejandro Piñeiro <apinheiro@igalia.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
2017-12-06 08:57:18 +01:00
Jason Ekstrand 8761a04d0d anv: Add support for the variablePointers feature
Not to be confused with variablePointersStorageBuffer which is the
subset of VK_KHR_variable_pointers required to enable the extension.
This means we now have "full" support for variable pointers.

Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
2017-12-05 22:01:54 -08:00
Jason Ekstrand 93b4cb61eb spirv: Allow OpPtrAccessChain for block indices
The SPIR-V spec is a bit underspecified when it comes to exactly how
you're allowed to use OpPtrAccessChain and what it means in certain edge
cases.  In particular, what if the base pointer of the OpPtrAccessChain
points to the base struct of an SSBO instead of an element in that SSBO.
The original variable pointers implementation in mesa assumed that you
weren't allowed to do an OpPtrAccessChain that adjusted the block index
and asserted such.  However, there are some CTS tests that do this and,
if the CTS does it, someone will do it in the wild so we should probably
handle it.  With this commit, we significantly reduce our assumptions
and should be able to handle more-or-less anything.

The one assumption we still make for correctness is that if we see an
OpPtrAccessChain on a pointer to a struct decorated block that the block
index should be adjusted.  In theory, someone could try to put an array
stride on such a pointer and try to make the SSBO an implicit array of
the base struct and we would not give them what they want.  That said,
any index other than 0 would count as an out-of-bounds access which is
invalid.

Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
2017-12-05 22:01:54 -08:00
Jason Ekstrand 32c859125b anv: Handle nir_intrinsic_vulkan_resource_reindex
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
2017-12-05 22:01:54 -08:00
Jason Ekstrand cfb81f58a0 nir: Add a vulkan_resource_reindex intrinsic
This is required for being able to handle OpPtrAccessChain in SPIR-V
where the base type of the incoming pointer requires us to add to the
block index instead of the byte offset.

Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
2017-12-05 22:01:54 -08:00
Jason Ekstrand ae54a4f84f spirv: Add support for lowering workgroup access to offsets
Before, we always left workgroup variables as shared nir_variables and
let the driver call nir_lower_io.  This adds an option to do the
lowering directly in spirv_to_nir.  To do this, we implicitly assign the
variables a std430 layout and then treat them like a UBO or SSBO and
immediately lower all the way to an offset.

As a side-effect, the spirv_to_nir pass now handles variable pointers
for workgroup variables.

Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
2017-12-05 22:01:54 -08:00
Jason Ekstrand f6eb5ce39c spirv: Rename get_shared_nir_atomic_op to get_var_nir_atomic_op
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
2017-12-05 22:01:54 -08:00
Jason Ekstrand 992aabf239 spirv: Add theoretical support for single component pointers
Up until now, all pointers have been ivec2s.  We're about to add support
for pointers to workgroup storage and those are going to be uints.

Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
2017-12-05 22:01:54 -08:00
Jason Ekstrand 843c192e2b spirv: Use offset_pointer_dereference to instead of get_vulkan_resource_index
There is no good reason why we should have the same logic repeated in
get_vulkan_resource_index and vtn_ssa_offset_pointer_dereference.  If
we're a bit more careful about how we do things, we can just use the one
function and get rid of the other entirely.  This also makes the push
constant special case a lot more clear.

Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
2017-12-05 22:01:53 -08:00
Jason Ekstrand 6dffef6308 spirv: Refactor a couple of pointer query helpers
This commit moves them both into vtn_variables.c towards the top, makes
them take a vtn_builder, and replaces a hand-rolled instance of
is_external_block with a function call.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
2017-12-05 20:56:16 -08:00
Jason Ekstrand 93646fb503 spirv: Refactor the base case of offset_pointer_dereference
This makes us key off of !offset instead of !block_index.  It also puts
the guts inside a switch statement so that we can handle more than just
UBOs and SSBOs.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
2017-12-05 20:56:14 -08:00