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* anv: Remove unused variable.Bas Nieuwenhuizen2017-12-171-2/+0
| | | | Reviewed-by: Jason Ekstrand <[email protected]>
* isl: Don't require VALIGN_2 for R32G32B32_FLOAT on Haswell.Kenneth Graunke2017-12-151-1/+3
| | | | | | | | | | | | | | According to the RENDER_SURFACE_STATE internal documentation, the R32G32B32_FLOAT restriction is marked "IVB" only. We choose to apply it to Ivybridge and Baytrail, but not Haswell. Apparently fixes KHR-GL46.texture_size_promotion.functional on Haswell. Changes these tests from crashing to skipping on Haswell: - KHR-GL46.direct_state_access.textures_storage_multisample_2d_rgb32f - KHR-GL46.direct_state_access.textures_storage_multisample_3d_rgb32f Reviewed-by: Jason Ekstrand <[email protected]>
* intel/tools: Convert aubinator over to the common frameworkJason Ekstrand2017-12-143-690/+33
| | | | Reviewed-by: Lionel Landwerlin <[email protected]>
* intel/batch-decoder: Decode registersJason Ekstrand2017-12-141-0/+13
| | | | Reviewed-by: Lionel Landwerlin <[email protected]>
* intel/batch-decoder: Decode dynamic stateJason Ekstrand2017-12-141-0/+81
| | | | | | | | Unfortunately, in aubinator and aubinator_error_decode we don't always know how many of a given state we have, so we must guess. One day, we'll come up with a way to annotate the batch to solve this problem. Reviewed-by: Lionel Landwerlin <[email protected]>
* intel/batch-decoder: Decode constants, binding tables, and samplersJason Ekstrand2017-12-141-0/+73
| | | | Reviewed-by: Lionel Landwerlin <[email protected]>
* intel/tools: Switch aubinator_error_decode over to the gen_print_batchJason Ekstrand2017-12-143-205/+37
| | | | | | | The shared framework can now do everything that aubinator_error_decode ever did and more. It's time to make the switch. Reviewed-by: Lionel Landwerlin <[email protected]>
* intel/batch-decoder: Decode graphics shadersJason Ekstrand2017-12-141-0/+95
| | | | Reviewed-by: Lionel Landwerlin <[email protected]>
* intel/batch-decoder: Decode vertex and index buffersJason Ekstrand2017-12-142-0/+161
| | | | Reviewed-by: Lionel Landwerlin <[email protected]>
* intel/batch-decoder: Decode MEDIA_INTERFACE_DESCRIPTOR_LOADJason Ekstrand2017-12-141-0/+145
| | | | Reviewed-by: Lionel Landwerlin <[email protected]>
* intel/tools: Add the start of a generic batch decoderJason Ekstrand2017-12-142-0/+306
| | | | Reviewed-by: Lionel Landwerlin <[email protected]>
* intel/decoder: Expose the raw field value in the iteratorJason Ekstrand2017-12-142-1/+3
| | | | Reviewed-by: Lionel Landwerlin <[email protected]>
* intel/disasm: Take a devinfo in gen_disasm_createJason Ekstrand2017-12-144-8/+7
| | | | Reviewed-by: Lionel Landwerlin <[email protected]>
* intel/decoder: Take a bit offset in gen_print_groupJason Ekstrand2017-12-144-18/+22
| | | | | | | | | | Previously, if a group was nested in another group such that it didn't start on a dword boundary, we would decode it as if it started at the start of its first dword. This changes things to work even more in terms of bits so that we can properly decode these structs. This affects MOCS, attribute swizzles, and several other things. Reviewed-by: Lionel Landwerlin <[email protected]>
* intel/decoder: Stop rounding down to the nearest dwordJason Ekstrand2017-12-141-11/+12
| | | | Reviewed-by: Lionel Landwerlin <[email protected]>
* intel/decoder: Convert the iterator to work entirely in bitsJason Ekstrand2017-12-142-12/+9
| | | | Reviewed-by: Lionel Landwerlin <[email protected]>
* intel/decoder: Drop gen_field_decode helperJason Ekstrand2017-12-142-11/+0
| | | | | | It's unused Reviewed-by: Lionel Landwerlin <[email protected]>
* intel/fs/bank_conflicts: Don't touch Gen7 MRF hack registers.Francisco Jerez2017-12-123-7/+19
| | | | | | | Fixes: af2c320190f3c731 "intel/fs: Implement GRF bank conflict mitigation pass." Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104199 Reported-by: Darius Spitznagel <[email protected]> Reviewed-by: Matt Turner <[email protected]>
* anv: fix bug when using component qualifier in FS outputsSamuel Iglesias Gonsálvez2017-12-121-19/+44
| | | | | | | | | | | | | | | | | | | | | | | We can write to the same output but in different components, like in this example: layout(location = 0, component = 0) out ivec2 dEQP_FragColor_0; layout(location = 0, component = 2) out ivec2 dEQP_FragColor_1; Therefore, they are not two different outputs but only one. Fixes: dEQP-VK.glsl.440.linkage.varying.component.frag_out.* v3: - Remove FRAG_RESULT_MAX. - Add const and use sizeof (Ian). - Do three-pass to set properly the locations of fragment outputs when having arrays (Jason). Signed-off-by: Samuel Iglesias Gonsálvez <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>
* anv: Enable UBO pushingJason Ekstrand2017-12-082-0/+7
| | | | | | | | | | | | | Push constants on Intel hardware are significantly more performant than pull constants. Since most Vulkan applications don't actively use push constants on Vulkan or at least don't use it heavily, we're pulling way more than we should be. By enabling pushing chunks of UBOs we can get rid of a lot of those pulls. On my SKL GT4e, this improves the performance of Dota 2 and Talos by around 2.5% and improves Aztec Ruins by around 2%. Reviewed-by: Jordan Justen <[email protected]>
* i965/fs: Handle !supports_pull_constants and push UBOs properlyJason Ekstrand2017-12-081-1/+1
| | | | | | In Vulkan, we don't support classic pull constants and everything the client asks us to push, we push. However, for pushed UBOs, we still want to fall back to conventional pulls if we run out of space.
* anv/device: Increase the UBO alignment requirement to 32Jason Ekstrand2017-12-081-2/+10
| | | | | | | | Push constants work in terms of 32-byte chunks so if we want to be able to push UBOs, every thing needs to be 32-byte aligned. Currently, we only require 16-byte which is too small. Reviewed-by: Jordan Justen <[email protected]>
* anv/cmd_buffer: Add support for pushing UBO rangesJason Ekstrand2017-12-082-33/+112
| | | | | | | | In order to do this we have to modify push constant set up to handle ranges. We also have to tweak the way we handle dirty bits a bit so that we re-push whenever a descriptor set changes. Reviewed-by: Jordan Justen <[email protected]>
* anv/cmd_buffer: Add some stage assertsJason Ekstrand2017-12-081-0/+6
| | | | | | | There are several places where we look up opcodes in an array of stages. Assert that the we don't end up going out-of-bounds. Reviewed-by: Jordan Justen <[email protected]>
* anv/cmd_buffer: Add some helpers for working with descriptor setsJason Ekstrand2017-12-081-11/+34
| | | | Reviewed-by: Jordan Justen <[email protected]>
* anv/pipeline: Translate vulkan_resource_index to a constant when possibleJason Ekstrand2017-12-081-4/+13
| | | | | | | | | | We want to call brw_nir_analyze_ubo_ranges immedately after anv_nir_apply_pipeline_layout and it badly wants constants. We could run an optimization step and let constant folding do it but that's way more expensive than needed. It's really easy to just handle constants in apply_pipeline_layout. Reviewed-by: Jordan Justen <[email protected]>
* i965/fs: Rewrite assign_constant_locationsJason Ekstrand2017-12-081-133/+185
| | | | | | | | | | | | | | | | | | | | This rewires the logic for assigning uniform locations to work in terms of "complex alignments". The basic idea is that, as we walk the list of instructions, we keep track of the alignment and continuity requirements of each slot and assert that the alignments all match up. We then use those alignments in the compaction stage to ensure that everything gets placed at a properly aligned register. The old mechanism handled alignments by special-casing each of the bit sizes and placing 64-bit values first followed by 32-bit values. The old scheme had the advantage of never leaving a hole since all the 64-bit values could be tightly packed and so could the 32-bit values. However, the new scheme has no type size special cases so it handles not only 32 and 64-bit types but should gracefully extend to 16 and 8-bit types as the need arises. Tested-by: Jose Maria Casanova Crespo <[email protected]> Reviewed-by: Topi Pohjolainen <[email protected]>
* anv: Disable VK_KHR_16bit_storageJason Ekstrand2017-12-082-3/+3
| | | | | | | | | | | | The testing for this extension is currently very poor. The CTS tests only test accessing UBOs and SSBOs at dynamic offsets so none of our constant-offset paths get triggered at all. Also, there's an assertion in our handling of nir_intrinsic_load_uniform that offset % 4 == 0 which is never triggered indicating that nothing every gets loaded from an offset which is not a dword. Both push constants and the constant offset pull paths are complex enough, we really don't want to ship without tests. We'll turn the extension back on once we have decent tests.
* intel/cfg: Represent divergent control flow paths caused by non-uniform loop ↵Francisco Jerez2017-12-071-6/+69
| | | | | | | | | | | | | | | | | | | | | | | | | | execution. This addresses a long-standing back-end compiler bug that could lead to cross-channel data corruption in loops executed non-uniformly. In some cases live variables extending through a loop divergence point (e.g. a non-uniform break) into a convergence point (e.g. the end of the loop) wouldn't be considered live along all physical control flow paths the SIMD thread could possibly have taken in between due to some channels remaining in the loop for additional iterations. This patch fixes the problem by extending the CFG with physical edges that don't exist in the idealized non-vectorized program, but represent valid control flow paths the SIMD EU may take due to the divergence of logical threads. This makes sense because the i965 IR is explicitly SIMD, and it's not uncommon for instructions to have an influence on neighboring channels (e.g. a force_writemask_all header setup), so the behavior of the SIMD thread as a whole needs to be considered. No changes in shader-db. Reviewed-by: Jason Ekstrand <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* intel/fs: Don't let undefined values prevent copy propagation.Francisco Jerez2017-12-071-3/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This makes the dataflow propagation logic of the copy propagation pass more intelligent in cases where the destination of a copy is known to be undefined for some incoming CFG edges, building upon the definedness information provided by the last patch. Helps a few programs, and avoids a handful shader-db regressions from the next patch. shader-db results on ILK: total instructions in shared programs: 6541547 -> 6541523 (-0.00%) instructions in affected programs: 360 -> 336 (-6.67%) helped: 8 HURT: 0 LOST: 0 GAINED: 10 shader-db results on BDW: total instructions in shared programs: 8174323 -> 8173882 (-0.01%) instructions in affected programs: 7730 -> 7289 (-5.71%) helped: 5 HURT: 2 LOST: 0 GAINED: 4 shader-db results on SKL: total instructions in shared programs: 8185669 -> 8184598 (-0.01%) instructions in affected programs: 10364 -> 9293 (-10.33%) helped: 5 HURT: 2 LOST: 0 GAINED: 2 Reviewed-by: Jason Ekstrand <[email protected]>
* intel/fs: Restrict live intervals to the subset possibly reachable from any ↵Francisco Jerez2017-12-072-4/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | definition. Currently the liveness analysis pass would extend a live interval up to the top of the program when no unconditional and complete definition of the variable is found that dominates all of its uses. This can lead to a serious performance problem in shaders containing many partial writes, like scalar arithmetic, FP64 and soon FP16 operations. The number of oversize live intervals in such workloads can cause the compilation time of the shader to explode because of the worse than quadratic behavior of the register allocator and scheduler when running out of registers, and it can also cause the running time of the shader to explode due to the amount of spilling it leads to, which is orders of magnitude slower than GRF memory. This patch fixes it by computing the intersection of our current live intervals with the subset of the program that can possibly be reached from any definition of the variable. Extending the storage allocation of the variable beyond that is pretty useless because its value is guaranteed to be undefined at a point that cannot be reached from any definition. According to Jason, this improves performance of the subgroup Vulkan CTS tests significantly (e.g. the runtime of the dvec4 broadcast test improves by nearly 50x). No significant change in the running time of shader-db (with 5% statistical significance). shader-db results on IVB: total cycles in shared programs: 61108780 -> 60932856 (-0.29%) cycles in affected programs: 16335482 -> 16159558 (-1.08%) helped: 5121 HURT: 4347 total spills in shared programs: 1309 -> 1288 (-1.60%) spills in affected programs: 249 -> 228 (-8.43%) helped: 3 HURT: 0 total fills in shared programs: 1652 -> 1597 (-3.33%) fills in affected programs: 262 -> 207 (-20.99%) helped: 4 HURT: 0 LOST: 2 GAINED: 209 shader-db results on BDW: total cycles in shared programs: 67617262 -> 67361220 (-0.38%) cycles in affected programs: 23397142 -> 23141100 (-1.09%) helped: 8045 HURT: 6488 total spills in shared programs: 1456 -> 1252 (-14.01%) spills in affected programs: 465 -> 261 (-43.87%) helped: 3 HURT: 0 total fills in shared programs: 1720 -> 1465 (-14.83%) fills in affected programs: 471 -> 216 (-54.14%) helped: 4 HURT: 0 LOST: 2 GAINED: 162 shader-db results on SKL: total cycles in shared programs: 65436248 -> 65245186 (-0.29%) cycles in affected programs: 22560936 -> 22369874 (-0.85%) helped: 8457 HURT: 6247 total spills in shared programs: 437 -> 437 (0.00%) spills in affected programs: 0 -> 0 helped: 0 HURT: 0 total fills in shared programs: 870 -> 854 (-1.84%) fills in affected programs: 16 -> 0 helped: 1 HURT: 0 LOST: 0 GAINED: 107 Reviewed-by: Jason Ekstrand <[email protected]>
* intel/fs: Teach instruction scheduler about GRF bank conflict cycles.Francisco Jerez2017-12-073-2/+23
| | | | | | | | | | | This should allow the post-RA scheduler to do a slightly better job at hiding latency in presence of instructions incurring bank conflicts. The main purpuse of this patch is not to improve performance though, but to get conflict cycles to show up in shader-db statistics in order to make sure that regressions in the bank conflict mitigation pass don't go unnoticed. Acked-by: Matt Turner <[email protected]>
* intel/fs: Implement GRF bank conflict mitigation pass.Francisco Jerez2017-12-075-0/+898
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Unnecessary GRF bank conflicts increase the issue time of ternary instructions (the overwhelmingly most common of which is MAD) by roughly 50%, leading to reduced ALU throughput. This pass attempts to minimize the number of bank conflicts by rearranging the layout of the GRF space post-register allocation. It's in general not possible to eliminate all of them without introducing extra copies, which are typically more expensive than the bank conflict itself. In a shader-db run on SKL this helps roughly 46k shaders: total conflicts in shared programs: 1008981 -> 600461 (-40.49%) conflicts in affected programs: 816222 -> 407702 (-50.05%) helped: 46234 HURT: 72 The running time of shader-db itself on SKL seems to be increased by roughly 2.52%±1.13% with n=20 due to the additional work done by the compiler back-end. On earlier generations the pass is somewhat less effective in relative terms because the hardware incurs a bank conflict anytime the last two sources of the instruction are duplicate (e.g. while trying to square a value using MAD), which is impossible to avoid without introducing copies. E.g. for a shader-db run on SNB: total conflicts in shared programs: 944636 -> 623185 (-34.03%) conflicts in affected programs: 853258 -> 531807 (-37.67%) helped: 31052 HURT: 19 And on BDW: total conflicts in shared programs: 1418393 -> 987539 (-30.38%) conflicts in affected programs: 1179787 -> 748933 (-36.52%) helped: 47592 HURT: 70 On SKL GT4e this improves performance of GpuTest Volplosion by 3.64% ±0.33% with n=16. NOTE: This patch intentionally disregards some i965 coding conventions for the sake of reviewability. This is addressed by the next squash patch which introduces an amount of (for the most part boring) boilerplate that might distract reviewers from the non-trivial algorithmic details of the pass. The following patch is squashed in: SQUASH: intel/fs/bank_conflicts: Roll back to the nineties. Acked-by: Matt Turner <[email protected]>
* meson: add dep_thread to every lib that includes threads.hEric Engestrom2017-12-071-1/+1
| | | | | | Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104141 Signed-off-by: Eric Engestrom <[email protected]> Reviewed-by: Dylan Baker <[email protected]>
* anv: fix a case statement in GetMemoryFdPropertiesKHRFredrik Höglund2017-12-061-1/+1
| | | | | | | | | The handle type in the case statement is supposed to be VK_EXTERNAL_- MEMORY_HANDLE_TYPE_DMA_BUF_BIT_EXT. Fixes: ab18e8e59b6 ("anv: Implement VK_EXT_external_memory_dma_buf") Signed-off-by: Fredrik Höglund <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>
* i965/fs: Use untyped_surface_read for 16-bit load_ssboJose Maria Casanova Crespo2017-12-061-7/+20
| | | | | | | | | | | | | | | | | | | | | | | | 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 <[email protected]>
* i965/fs: Optimize 16-bit SSBO stores by packing two into a 32-bit regJose Maria Casanova Crespo2017-12-061-15/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 <[email protected]> Signed-off-by: Jose Maria Casanova Crespo <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>
* anv: Enable SPV_KHR_16bit_storage and VK_KHR_16bit_storage for SSBO/UBOAlejandro Piñeiro2017-12-063-0/+15
| | | | | | | | | | | | | | | | | | | | | | 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 <[email protected]> Signed-off-by: Alejandro Piñeiro <[email protected]> Signed-off-by: Eduardo Lima Mitev <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>
* i965/fs: Enables 16-bit load_ubo with samplerJason Ekstrand2017-12-061-7/+14
| | | | | | | | | | | | | | | | | | 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 <[email protected]>
* i965/fs: Helpers for un/shuffle 16-bit pairs in 32-bit componentsJose Maria Casanova Crespo2017-12-062-0/+71
| | | | | | | | | | | | | 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 <[email protected]>
* i965/fs: Use byte scattered read for 16-bit load_ssboJose Maria Casanova Crespo2017-12-061-1/+13
| | | | | | | | | | | | | | | | | | | | | 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 <[email protected]>
* i965/fs: Add byte scattered read message and fs supportJose Maria Casanova Crespo2017-12-069-1/+94
| | | | | | | | | | | | | | | | | | | | 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 <[email protected]>
* i965/fs: Predicate byte scattered writes if neededAlejandro Piñeiro2017-12-061-1/+14
| | | | | | | | | | | | | | 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 <[email protected]>
* i965/fs: Use byte_scattered_write on 16-bit store_ssboAlejandro Piñeiro2017-12-061-20/+45
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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 <[email protected]> Signed-off-by: Alejandro Piñeiro <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>
* i965/fs: Add byte scattered write message and fs supportJose Maria Casanova Crespo2017-12-069-0/+118
| | | | | | | | | | | | | | | | | | | 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 <[email protected]> Signed-off-by: Alejandro Piñeiro <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>
* i965/fs: Add remove_extra_rounding_modes optimizationAlejandro Piñeiro2017-12-063-0/+39
| | | | | | | | | | | | | | | | | | | | 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 <[email protected]> Signed-off-by: Alejandro Piñeiro <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>
* i965/fs: Enable rounding mode on f2f16 opsAlejandro Piñeiro2017-12-061-0/+18
| | | | | | | | | | | | | | 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 <[email protected]> Signed-off-by: Alejandro Piñeiro <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>
* i965/fs: Define new shader opcode to set rounding modesAlejandro Piñeiro2017-12-065-0/+62
| | | | | | | | | | | | | | | | | | | | | | | 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 <[email protected]> Signed-off-by: Jose Maria Casanova Crespo <[email protected]> Reviewed-by: Francisco Jerez <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>
* i965: Add support for control registerJose Maria Casanova Crespo2017-12-061-0/+6
| | | | | | | | | | | | | | | | | | | | | | 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 <[email protected]>
* i965/fs: Handle 32-bit to 16-bit conversionsAlejandro Piñeiro2017-12-061-0/+25
| | | | | | | | | | | | | | | | | | | | 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 <[email protected]> Signed-off-by: Alejandro Piñeiro <[email protected]> Signed-off-by: Jose Maria Casanova Crespo <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>
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