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* i965/fs: Allow CSE on pre-gen7 varying-index uniform loadsEric Anholt2013-04-011-1/+1
| | | | | | | | | | | | | | | All the other expression types allowed here have inst->mlen == 0, and this one has implied MRF writes for all of its payload, so nothing else in the implementation should need to change. Reduces SEND messages for loading from pull constants in kwin's Lanczos shader from 16 to 6. (Due to a deficiency in constant propagation, I can't use the hack I did in the previous commit to test the performance change) Reviewed-by: Kenneth Graunke <[email protected]> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=61554 NOTE: This is a candidate for the 9.1 branch.
* i965/fs: Use LD messages for pre-gen7 varying-index uniform loadsEric Anholt2013-04-014-67/+84
| | | | | | | | | | This comes at a minor performance cost at the moment (-3.2% +/- 0.2%, n=14 on my GM45 forced to load all uniforms through the varying-index path), but we get a whole vec4 at a time to reuse in the next commit. v2: Fix comment about channels in the other message. Reviewed-by: Kenneth Graunke <[email protected]> NOTE: This is a candidate for the 9.1 branch.
* i965/fs: Don't double-emit SEND dependency workarounds at control flow.Eric Anholt2013-04-011-0/+2
| | | | | | | | | We weren't setting needs_dep[i] in the loops, so we'd continue on to potentially add the same workaround MOVs to the later basic block boundaries, too. We can either set needs_dep[i] to exit through the normal path, or we can just return since we know we're done. Reviewed-by: Kenneth Graunke <[email protected]>
* i965/fs: Bake regs_written into the IR instead of recomputing it later.Eric Anholt2013-04-017-33/+27
| | | | | | | | | For sampler messages, it depends on the target gen, and on gen4 SIMD16-sampler-on-SIMD8-execution we were returning 4 instead of 8 like we should. Reviewed-by: Kenneth Graunke <[email protected]> NOTE: This is a candidate for the 9.1 branch.
* i965/fs: Clean up the setup of gen4 simd16 message destinations.Eric Anholt2013-04-011-5/+4
| | | | | | | I think this makes it much more obvious what's going on here. NOTE: This is a candidate for the 9.1 branch. Reviewed-by: Kenneth Graunke <[email protected]>
* i965/fs: Do CSE on gen7's varying-index pull constant loads.Eric Anholt2013-04-011-11/+32
| | | | | | | | | | | | This is our first CSE on a regs_written() > 1 instruction, so it takes a bit of extra fixup. Reduces the number of loads on kwin's Lanczos shader from 12 to 2. v2: Fix compiler warning (false positive on possibly-uninitialized variable) Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=61554 Reviewed-by: Kenneth Graunke <[email protected]> (v1) NOTE: This is a candidate for the 9.1 branch.
* i965/fs: Improve performance of varying-index uniform loads on IVB.Eric Anholt2013-04-012-18/+38
| | | | | | | | | | | | | | | | | | | Like we have done for the VS and for constant-index uniform loads, we use the sampler engine to get caching in front of the L3 to avoid tickling the IVB L3 bug. This is also a bit of a functional change, as we're now loading a vec4 instead of a single dword, though we're not taking advantage of the other 3 components of the vec4 (yet). With the driver hacked to always take the varying-index path for all uniforms, improves performance of my old GLSL demo by 315% +/- 2% (n=4). This a major fix for some blur shaders in compositors from the varying-index uniforms support I introduced in 9.1. v2: Move old offset computation into the pre-gen7 path. Reviewed-by: Kenneth Graunke <[email protected]> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=61554 NOTE: This is a candidate for the 9.1 branch.
* i965/fs: Avoid inappropriate optimization with regs_written > 1.Eric Anholt2013-04-011-0/+6
| | | | | | | | Right now we don't have anything with regs_written() > 1 and !inst->mlen, but that's about to change. NOTE: This is a candidate for the 9.1 branch. Reviewed-by: Kenneth Graunke <[email protected]>
* i965: Make the fragment shader pull constants index by dwords, not vec4s.Eric Anholt2013-04-016-16/+19
| | | | | | | | | | | | | | | | | We want to load vec4s, since loading a vec4 instead of a dword is basically no increased latency. But for variable indexed access, the previous requirement of aligned vec4s for a sampler LD was hard to implement. Note that this change only affects those messages that use the surface format, like sampler LDs, but not to the untyped data cache loads we've used in other cases. No significant performance difference on my GLSL demo with uniforms forced to take the varying pull constants path (n=4). NOTE: This is a candidate for the 9.1 branch. Reviewed-by: Kenneth Graunke <[email protected]>
* i965: Make the constant surface interface take a normal byte size.Eric Anholt2013-04-014-17/+16
| | | | | | | | | This puts the rounding-up logic into the function itself instead of all the callers having to manage it. Also drop an "unused" comment in gen4, as the stride *is* used for texbos (and will be for uniforms soon). NOTE: This is a candidate for the 9.1 branch. Reviewed-by: Kenneth Graunke <[email protected]>
* i965/fs: Move varying uniform offset compuation into the helper func.Eric Anholt2013-04-013-11/+13
| | | | | | | | I'm going to want to change the math for gen7 using sampler LD instructions in a way that gets CSE to occur like we'd hope. NOTE: This is a candidate for the 9.1 branch. Reviewed-by: Kenneth Graunke <[email protected]>
* i965/fs: Remove creation of a MOV instruction that's never used.Eric Anholt2013-04-011-1/+0
| | | | | | | | We weren't inserting it into the list, so it did nothing. This line was replaced by the MOV/MUL block above. NOTE: This is a candidate for the 9.1 branch. Reviewed-by: Kenneth Graunke <[email protected]>
* i965/fs: Allow constant propagation into MACH.Eric Anholt2013-04-011-2/+4
| | | | | | | | This happens quite a bit with varying-index uniform loads. We could also do better by avoiding the MACH entirely, but there's no reason not to at least take this step. Reviewed-by: Kenneth Graunke <[email protected]>
* ACTIVE_UNIFORM_MAX_LENGTH should include 3 extra characters for arrays.Haixia Shi2013-04-011-2/+4
| | | | | | | | | | | | | | | | | If the active uniform is an array, then the length of the uniform name should include the three extra characters for the "[0]" suffix, which is required by the GL 4.2 spec to be appended to the uniform name in glGetActiveUniform(). This avoids the situation where the output buffer does not have enough space to hold the "[0]" suffix, resulting in an incomplete array specification like "foobar[0". NOTE: This is a candidate for the 9.1 branch. Change-Id: I41e87ba347a7169eec8c575596cc3416adbe0728 Signed-off-by: Haixia Shi <[email protected]> Reviewed-by: Stéphane Marchesin <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* i965/fs: Fix bad interaction between tex swizzles and textureQueryLOD.Matt Turner2013-04-011-1/+1
| | | | | Reported-by: Chris Forbes <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* i965: Remove the old brw_optimize() code.Eric Anholt2013-04-013-120/+0
| | | | | | This is now done in the VS backend before instruction emit. Reviewed-by: Kenneth Graunke <[email protected]>
* i965/vs: Add a pass to set dependency control fields on instructions.Eric Anholt2013-04-013-0/+126
| | | | | | | This is a more aggressive version of the old brw_optimize() path. Reduces cycles spent in the vertex shader on minecraft by 18.6% +/- 10.0% (n=15). Reviewed-by: Kenneth Graunke <[email protected]>
* i965: Dump shader source for linked shader programs.Eric Anholt2013-04-011-2/+18
| | | | | | | | | | We dump shader source in ir_to_mesa.cpp, and we dump linked programs here, but we had no reference from the linked programs to their source. This was preventing improvement of shader-db to use linked shader programs instead of individual shader files (which is bogus, because it means we optimize out VS outputs, and don't interpolate FS inputs!) Reviewed-by: Kenneth Graunke <[email protected]>
* mesa: remove platform checks around __builtin_ffs, __builtin_ffsllBrian Paul2013-04-011-6/+0
| | | | | | | | | | | Use the __builtin_ffs, __builtin_ffsll functions whenever we have GCC, not just for specific platforms. Fixes Solaris build. Note: This is a candidate for the stable branches. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=62868 Signed-off-by: Brian Paul <[email protected]> Reviewed-by: Jose Fonseca <[email protected]>
* drirc: set always_have_depth_buffer for TopogonBrian Paul2013-04-011-0/+6
| | | | Reviewed-by: Jose Fonseca <[email protected]>
* mesa: fix texture storage multisample prototypes harder.Dave Airlie2013-04-012-4/+4
| | | | | | I just noticed the warnings since I fixed the other bit. Signed-off-by: Dave Airlie <[email protected]>
* i965: enable ARB_texture_storage_multisample on Gen6+Chris Forbes2013-03-311-0/+1
| | | | | | | | | This can be enabled everywhere that ARB_texture_multisample is supported -- ARB_texture_storage is supported on everything. Signed-off-by: Chris Forbes <[email protected]> Reviewed-by: Eric Anholt <[email protected]> Reviewed-by: Brian Paul <[email protected]>
* mesa: allow multisample texture targets in [Get]TexParameter*Chris Forbes2013-03-311-1/+87
| | | | | | | | | | | | | | | | | | | | ARB_texture_storage_multisample allows texture parameters to be queried for TEXTURE_2D_MULTISAMPLE and TEXTURE_2D_MULTISAMPLE_ARRAY targets. Some parameters may also be set, with the following exceptions: - TEXTURE_BASE_LEVEL may not be set to a nonzero value; generates INVALID_OPERATION - any state which appears in the `per-sampler` state table may not be set; generates INVALID_OPERATION V2: Don't introduce bogus handling of TEXTURE_MAX_LEVEL Signed-off-by: Chris Forbes <[email protected]> Reviewed-by: Eric Anholt <[email protected]> Reviewed-by: Brian Paul <[email protected]>
* mesa: improve reported function name in Tex*MultisampleChris Forbes2013-03-311-16/+14
| | | | | | | | | Now that there are 4 variants, just pass the function name into teximagemultisample rather than reconstructing it. Signed-off-by: Chris Forbes <[email protected]> Reviewed-by: Eric Anholt <[email protected]> Reviewed-by: Brian Paul <[email protected]>
* mesa: add enable bit for ARB_texture_storage_multisampleChris Forbes2013-03-312-0/+2
| | | | | | Signed-off-by: Chris Forbes <[email protected]> Reviewed-by: Eric Anholt <[email protected]> Reviewed-by: Brian Paul <[email protected]>
* glapi: add definition of ARB_texture_storage_multisampleChris Forbes2013-03-313-2/+33
| | | | | | | | | | Adds XML for the extension, dispatch_sanity enabling, and the two new entrypoints. These are both implemented by calling the shared teximagemultisample() with immutable=GL_TRUE. Signed-off-by: Chris Forbes <[email protected]> Reviewed-by: Eric Anholt <[email protected]> Reviewed-by: Brian Paul <[email protected]>
* mesa: add support for immutable textures to teximagemultisample()Chris Forbes2013-03-311-3/+28
| | | | | | | | | | | | | | | | | | The new entrypoints will come later, but this adds the actual logic for supporting immutable multisample textures: - The immutability flag is set as desired. - Attempting to modify an immutable multisample texture produces INVALID_OPERATION. Note: The extension spec does not mention adding this behavior to TexImage*Multisample, but it seems like the reasonable thing to do. V2: - Cover missing error cases (unsized formats; texture object zero) Signed-off-by: Chris Forbes <[email protected]> [V1] Reviewed-by: Eric Anholt <[email protected]> Reviewed-by: Brian Paul <[email protected]>
* mesa: extract _mesa_is_legal_tex_storage_format helperChris Forbes2013-03-312-17/+23
| | | | | | | This is about to be used in teximagemultisample() when immutable=true. Signed-off-by: Chris Forbes <[email protected]> Reviewed-by: Brian Paul <[email protected]>
* mesa: Delete VERT_ATTRIB_GENERIC_NV and VERT_BIT_GENERIC_NV macros.Kenneth Graunke2013-03-301-10/+0
| | | | | | | | These haven't been used since we deleted NV_vertex_program support. Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Brian Paul <[email protected]> Reviewed-by: Eric Anholt <[email protected]>
* i965: Fix an inconsistency inb the VUE map with gl_ClipVertex on gen4/5.Eric Anholt2013-03-301-7/+11
| | | | | | | | | | | | | We are intentionally not allocating a slot for gl_ClipVertex. But by leaving the bit set in the slots_valid, the fragment shader's computation of where varyings are in urb entry coming out of the SF would be off by one. Fixes rendering in Freespace 2 SCP, and improves rendering in TF2. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=62830 Tested-by: Joaquín Ignacio Aramendía <[email protected]> NOTE: This is a candidate for the 9.1 branch. Reviewed-and-tested-by: Kenneth Graunke <[email protected]> Reviewed-by: Paul Berry <[email protected]>
* intel: Remove a never-taken debug print path.Eric Anholt2013-03-301-5/+0
| | | | | | | | Alessandro Pignotti noted when I added this code in commit 0e723b135bfd59868c92c3ae243f1adaedaec3a5 that it's in the else block for "if (busy)", so this debug print couldn't happen. Reviewed-by: Kenneth Graunke <[email protected]>
* st/mesa: add ir_lod case in GLSL->TGSI code to silence warningBrian Paul2013-03-291-0/+3
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* i965: Fix INTEL_DEBUG=shader_time for fragment shaders with discards.Kenneth Graunke2013-03-295-6/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "discard" instructions generate HALT instructions which jump to a final HALT near the end of the shader. Previously, fs_generator created this final jump target when it saw the first FS_OPCODE_FB_WRITE, causing it to jump right before the FB write epilogue. This is normally good. However, INTEL_DEBUG=shader_time also has an epilogue section which records the final timestamp. The frontend emits IR for this just before FS_OPCODE_FB_WRITE. Unfortunately, this led to the following ordering: 1. Shader Time Epilogue 2. Final HALT (where discards jump) 3. Framebuffer Write Epilogue This meant that discarded pixels completely skipped the shader time epilogue, causing no ending timestamp to be written. This obviously led to inaccurate results. This patch adds a new FS_OPCODE_PLACEHOLDER_HALT in the IR stream just before any epilogue sections. This is where the final HALT should be generated, and makes it easy to ensure the correct ordering: 1. Final HALT 2. Shader Time Epilogue 3. Framebuffer Write Epilogue For shaders that don't discard, this opcode compiles away to nothing. The scheduler adds barrier dependencies to make sure that it doesn't get moved above any FS_OPCODE_DISCARD_JUMP instructions. One 8-wide shader in GLBenchmark 2.7 dropped from 2291.67 Gcycles to a mere 5.13 Gcycles. Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Eric Anholt <[email protected]>
* i965: Add names for all instructions to dump_instruction() in FS and VS.Eric Anholt2013-03-294-25/+113
| | | | | | | I'd previously added the minimum names to understand my dumps, but this makes dumps in general much easier to read. Reviewed-by: Kenneth Graunke <[email protected]>
* i965: Enable ARB_texture_query_lod.Matt Turner2013-03-291-1/+3
| | | | | v2: Support Ironlake as well. Reviewed-by: Kenneth Graunke <[email protected]>
* i965/fs: Generate LOD sampler message from ir_lod.Matt Turner2013-03-295-1/+20
| | | | | v2: Support Ironlake as well. Reviewed-by: Kenneth Graunke <[email protected]>
* glsl: Implement ARB_texture_query_lodDave Airlie2013-03-293-0/+5
| | | | | | | | | | | | | | | | | | | v2 [mattst88]: - Rebase. - #define GL_ARB_texture_query_lod to 1. - Remove comma after ir_lod in ir.h for MSVC. - Handled ir_lod in ir_hv_accept.cpp, ir_rvalue_visitor.cpp, opt_tree_grafting.cpp. - Rename textureQueryLOD to textureQueryLod, see https://www.khronos.org/bugzilla/show_bug.cgi?id=821 - Fix ir_reader of (lod ...). v3 [mattst88]: - Rename textureQueryLod to textureQueryLOD, pending resolution of Khronos 821. - Add ir_lod case to ir_to_mesa.cpp. Reviewed-by: Matt Turner <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* i965/fs: Use measured Gen7 instruction timings on Gen6.Matt Turner2013-03-291-1/+4
| | | | | | | | | | | | | | | | | | x before + after +------------------------------------------------------------------------------+ | x x + | | xx ++ x + | | xx ++ + xx ++ | |x xxx x+++++ + xxx x*x+*+++ + x +| | |_____|____________A______A____M____M_|_______| | +------------------------------------------------------------------------------+ N Min Max Median Avg Stddev x 23 8083.78 8287.83 8205.55 8162.7461 68.307951 + 23 8107.56 8358.74 8224.33 8186.1765 71.506301 No difference proven at 95.0% confidence Reviewed-by: Eric Anholt <[email protected]>
* i965/fs: Increase and document MAD latency on Gen7.Matt Turner2013-03-291-4/+18
| | | | | | | 58% of mad(8) generated in shader-db are reading registers from the same bank. Reviewed-by: Eric Anholt <[email protected]>
* i965/fs: Add LRP instruction latency.Matt Turner2013-03-291-0/+26
| | | | | | | | Set its latency to what happens to be the default floating-point instruction latency. One day we may want to handle latency based on register bank information. Reviewed-by: Eric Anholt <[email protected]>
* i965/fs: Add Haswell cycle timingsMatt Turner2013-03-291-9/+9
| | | | Reviewed-by: Eric Anholt <[email protected]>
* i965: Note that write-after-write dependencies are blocking.Matt Turner2013-03-291-1/+1
| | | | Reviewed-by: Eric Anholt <[email protected]>
* i965: Reword comment about the shared mathbox.Matt Turner2013-03-291-4/+4
| | | | Reviewed-by: Eric Anholt <[email protected]>
* mesa: provide default implementation of QuerySamplesForFormatChris Forbes2013-03-293-1/+21
| | | | | | | | | | | | | | Previously at least i915 failed to provide an implementation, but exposed ARB_internalformat_query anyway, leading to crashes when QueryInternalformativ was called. Default implementation just returns 1 for everything, so is suitable for any driver which does not support multisampling. V2: - Move from intel to core mesa. Signed-off-by: Chris Forbes <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
* mesa: handle STATE_CURRENT_ATTRIB_MAYBE_VP_CLAMPED for parameter printingMarek Olšák2013-03-281-0/+3
| | | | Reviewed-by: Brian Paul <[email protected]>
* i965: Tidy shader time printing code by using printf's field widths.Kenneth Graunke2013-03-281-12/+4
| | | | | | | | | | | | | We can use %-6s%-6s rather than manually counting characters, resulting in much more readable code. This necessitates a small secondary change: using "total fs16" and "" now causes the "" string to be padded out to 6 characters, resulting in too much whitespace. Splitting it into "total" and "fs16" produces the same output as before. Reviewed-by: Eric Anholt <[email protected]> Signed-off-by: Kenneth Graunke <[email protected]>
* i965/vs: Include URB payload setup in shader_time.Eric Anholt2013-03-282-4/+11
| | | | | | | | This much more accurately reflects the cost of the vertex shader, since the payload setup is often a significant fraction of the instructions in the VS. Reviewed-by: Kenneth Graunke <[email protected]>
* i965/vs: Use a send from a 2-register VGRF for shader time writes.Eric Anholt2013-03-282-14/+13
| | | | | | | This will let us emit it later, after we're setting up MRFs for the URB write. Reviewed-by: Kenneth Graunke <[email protected]>
* i965/vs: Teach copy propagation about sends from GRFs.Eric Anholt2013-03-283-7/+29
| | | | | | | This incidentally also teaches it a bit about gen6 math -- we now allow unswizzled, unmodified GRF temps as the sources for math. Reviewed-by: Kenneth Graunke <[email protected]>
* i965/vs: Prepare split_virtual_grfs() for the presence of SENDs from GRFs.Eric Anholt2013-03-282-20/+45
| | | | | | v2: Fix silly bool handling, and don't add new tabs. Reviewed-by: Kenneth Graunke <[email protected]>
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