X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fdrivers%2Fdri%2Fi965%2Fgen7_wm_state.c;h=8243905a8df2e3c11edc0e46fd2cfdf0007130c2;hb=55364ab5b7136e09a61d858f1167dee81e17bd9f;hp=93c4440e00ded8bc49a5fb38668899edd28250d9;hpb=f497906ec0c01ec714d77bfcc2f0a38da5dafcc2;p=mesa.git diff --git a/src/mesa/drivers/dri/i965/gen7_wm_state.c b/src/mesa/drivers/dri/i965/gen7_wm_state.c index 93c4440e00d..8243905a8df 100644 --- a/src/mesa/drivers/dri/i965/gen7_wm_state.c +++ b/src/mesa/drivers/dri/i965/gen7_wm_state.c @@ -27,24 +27,25 @@ #include "brw_defines.h" #include "brw_util.h" #include "brw_wm.h" +#include "program/program.h" #include "program/prog_parameter.h" #include "program/prog_statevars.h" +#include "main/framebuffer.h" #include "intel_batchbuffer.h" static void upload_wm_state(struct brw_context *brw) { - struct intel_context *intel = &brw->intel; - struct gl_context *ctx = &intel->ctx; - const struct brw_fragment_program *fp = - brw_fragment_program_const(brw->fragment_program); - bool writes_depth = false; - uint32_t dw1; + struct gl_context *ctx = &brw->ctx; + /* BRW_NEW_FS_PROG_DATA */ + const struct brw_wm_prog_data *prog_data = brw->wm.prog_data; + bool writes_depth = prog_data->computed_depth_mode != BRW_PSCDEPTH_OFF; + uint32_t dw1, dw2; - /* _NEW_LIGHT */ - bool flat_shade = (ctx->Light.ShadeModel == GL_FLAT); + /* _NEW_BUFFERS */ + const bool multisampled_fbo = _mesa_geometric_samples(ctx->DrawBuffer) > 1; - dw1 = 0; + dw1 = dw2 = 0; dw1 |= GEN7_WM_STATISTICS_ENABLE; dw1 |= GEN7_WM_LINE_AA_WIDTH_1_0; dw1 |= GEN7_WM_LINE_END_CAP_AA_WIDTH_0_5; @@ -57,150 +58,221 @@ upload_wm_state(struct brw_context *brw) if (ctx->Polygon.StippleFlag) dw1 |= GEN7_WM_POLYGON_STIPPLE_ENABLE; - /* BRW_NEW_FRAGMENT_PROGRAM */ - if (fp->program.Base.InputsRead & FRAG_BIT_WPOS) - dw1 |= GEN7_WM_USES_SOURCE_DEPTH | GEN7_WM_USES_SOURCE_W; - if (fp->program.Base.OutputsWritten & BITFIELD64_BIT(FRAG_RESULT_DEPTH)) { - writes_depth = true; - dw1 |= GEN7_WM_PSCDEPTH_ON; - } - dw1 |= brw_compute_barycentric_interp_modes(flat_shade, &fp->program) << + if (prog_data->uses_src_depth) + dw1 |= GEN7_WM_USES_SOURCE_DEPTH; + + if (prog_data->uses_src_w) + dw1 |= GEN7_WM_USES_SOURCE_W; + + dw1 |= prog_data->computed_depth_mode << GEN7_WM_COMPUTED_DEPTH_MODE_SHIFT; + dw1 |= prog_data->barycentric_interp_modes << GEN7_WM_BARYCENTRIC_INTERPOLATION_MODE_SHIFT; - /* _NEW_COLOR */ - if (fp->program.UsesKill || ctx->Color.AlphaEnabled) + /* _NEW_COLOR, _NEW_MULTISAMPLE */ + /* Enable if the pixel shader kernel generates and outputs oMask. + */ + if (prog_data->uses_kill || ctx->Color.AlphaEnabled || + ctx->Multisample.SampleAlphaToCoverage || + prog_data->uses_omask) { dw1 |= GEN7_WM_KILL_ENABLE; + } - /* _NEW_BUFFERS */ + /* _NEW_BUFFERS | _NEW_COLOR */ if (brw_color_buffer_write_enabled(brw) || writes_depth || - dw1 & GEN7_WM_KILL_ENABLE) { + prog_data->has_side_effects || dw1 & GEN7_WM_KILL_ENABLE) { dw1 |= GEN7_WM_DISPATCH_ENABLE; } + if (multisampled_fbo) { + /* _NEW_MULTISAMPLE */ + if (ctx->Multisample.Enabled) + dw1 |= GEN7_WM_MSRAST_ON_PATTERN; + else + dw1 |= GEN7_WM_MSRAST_OFF_PIXEL; + + if (prog_data->persample_dispatch) + dw2 |= GEN7_WM_MSDISPMODE_PERSAMPLE; + else + dw2 |= GEN7_WM_MSDISPMODE_PERPIXEL; + } else { + dw1 |= GEN7_WM_MSRAST_OFF_PIXEL; + dw2 |= GEN7_WM_MSDISPMODE_PERSAMPLE; + } + + if (prog_data->uses_sample_mask) { + dw1 |= GEN7_WM_USES_INPUT_COVERAGE_MASK; + } + + /* BRW_NEW_FS_PROG_DATA */ + if (prog_data->early_fragment_tests) + dw1 |= GEN7_WM_EARLY_DS_CONTROL_PREPS; + else if (prog_data->has_side_effects) + dw1 |= GEN7_WM_EARLY_DS_CONTROL_PSEXEC; + + /* The "UAV access enable" bits are unnecessary on HSW because they only + * seem to have an effect on the HW-assisted coherency mechanism which we + * don't need, and the rasterization-related UAV_ONLY flag and the + * DISPATCH_ENABLE bit can be set independently from it. + * C.f. gen8_upload_ps_extra(). + * + * BRW_NEW_FRAGMENT_PROGRAM | BRW_NEW_FS_PROG_DATA | _NEW_BUFFERS | _NEW_COLOR + */ + if (brw->is_haswell && + !(brw_color_buffer_write_enabled(brw) || writes_depth) && + prog_data->has_side_effects) + dw2 |= HSW_WM_UAV_ONLY; BEGIN_BATCH(3); OUT_BATCH(_3DSTATE_WM << 16 | (3 - 2)); OUT_BATCH(dw1); - OUT_BATCH(0); + OUT_BATCH(dw2); ADVANCE_BATCH(); } const struct brw_tracked_state gen7_wm_state = { .dirty = { - .mesa = (_NEW_LINE | _NEW_LIGHT | _NEW_POLYGON | - _NEW_COLOR | _NEW_BUFFERS), - .brw = (BRW_NEW_FRAGMENT_PROGRAM | - BRW_NEW_BATCH), - .cache = 0, + .mesa = _NEW_BUFFERS | + _NEW_COLOR | + _NEW_LINE | + _NEW_MULTISAMPLE | + _NEW_POLYGON, + .brw = BRW_NEW_BATCH | + BRW_NEW_BLORP | + BRW_NEW_FS_PROG_DATA, }, .emit = upload_wm_state, }; static void -upload_ps_state(struct brw_context *brw) +gen7_upload_ps_state(struct brw_context *brw, + const struct brw_stage_state *stage_state, + const struct brw_wm_prog_data *prog_data, + bool enable_dual_src_blend, unsigned sample_mask, + unsigned fast_clear_op) { - struct intel_context *intel = &brw->intel; - uint32_t dw2, dw4, dw5; + uint32_t dw2, dw4, dw5, ksp0, ksp2; + const int max_threads_shift = brw->is_haswell ? + HSW_PS_MAX_THREADS_SHIFT : IVB_PS_MAX_THREADS_SHIFT; - BEGIN_BATCH(2); - OUT_BATCH(_3DSTATE_BINDING_TABLE_POINTERS_PS << 16 | (2 - 2)); - OUT_BATCH(brw->bind.bo_offset); - ADVANCE_BATCH(); + dw2 = dw4 = dw5 = ksp2 = 0; - /* CACHE_NEW_SAMPLER */ - BEGIN_BATCH(2); - OUT_BATCH(_3DSTATE_SAMPLER_STATE_POINTERS_PS << 16 | (2 - 2)); - OUT_BATCH(brw->sampler.offset); - ADVANCE_BATCH(); + const unsigned sampler_count = + DIV_ROUND_UP(CLAMP(stage_state->sampler_count, 0, 16), 4); + dw2 |= SET_FIELD(sampler_count, GEN7_PS_SAMPLER_COUNT); - /* CACHE_NEW_WM_PROG */ - if (brw->wm.prog_data->nr_params == 0) { - /* Disable the push constant buffers. */ - BEGIN_BATCH(7); - OUT_BATCH(_3DSTATE_CONSTANT_PS << 16 | (7 - 2)); - OUT_BATCH(0); - OUT_BATCH(0); - OUT_BATCH(0); - OUT_BATCH(0); - OUT_BATCH(0); - OUT_BATCH(0); - ADVANCE_BATCH(); - } else { - BEGIN_BATCH(7); - OUT_BATCH(_3DSTATE_CONSTANT_PS << 16 | (7 - 2)); + dw2 |= ((prog_data->base.binding_table.size_bytes / 4) << + GEN7_PS_BINDING_TABLE_ENTRY_COUNT_SHIFT); - OUT_BATCH(ALIGN(brw->wm.prog_data->nr_params, - brw->wm.prog_data->dispatch_width) / 8); - OUT_BATCH(0); - /* Pointer to the WM constant buffer. Covered by the set of - * state flags from gen7_prepare_wm_constants - */ - OUT_BATCH(brw->wm.push_const_offset); - OUT_BATCH(0); - OUT_BATCH(0); - OUT_BATCH(0); - ADVANCE_BATCH(); - } + if (prog_data->base.use_alt_mode) + dw2 |= GEN7_PS_FLOATING_POINT_MODE_ALT; - dw2 = dw4 = dw5 = 0; + /* Haswell requires the sample mask to be set in this packet as well as + * in 3DSTATE_SAMPLE_MASK; the values should match. */ + /* _NEW_BUFFERS, _NEW_MULTISAMPLE */ + if (brw->is_haswell) + dw4 |= SET_FIELD(sample_mask, HSW_PS_SAMPLE_MASK); - dw2 |= (ALIGN(brw->sampler.count, 4) / 4) << GEN7_PS_SAMPLER_COUNT_SHIFT; + dw4 |= (brw->max_wm_threads - 1) << max_threads_shift; - /* Use ALT floating point mode for ARB fragment programs, because they - * require 0^0 == 1. + if (prog_data->base.nr_params > 0) + dw4 |= GEN7_PS_PUSH_CONSTANT_ENABLE; + + /* From the IVB PRM, volume 2 part 1, page 287: + * "This bit is inserted in the PS payload header and made available to + * the DataPort (either via the message header or via header bypass) to + * indicate that oMask data (one or two phases) is included in Render + * Target Write messages. If present, the oMask data is used to mask off + * samples." */ - if (intel->ctx.Shader.CurrentFragmentProgram == NULL) - dw2 |= GEN7_PS_FLOATING_POINT_MODE_ALT; + if (prog_data->uses_omask) + dw4 |= GEN7_PS_OMASK_TO_RENDER_TARGET; - /* CACHE_NEW_SAMPLER */ - dw4 |= (brw->max_wm_threads - 1) << GEN7_PS_MAX_THREADS_SHIFT; + /* From the IVB PRM, volume 2 part 1, page 287: + * "If the PS kernel does not need the Position XY Offsets to + * compute a Position Value, then this field should be programmed + * to POSOFFSET_NONE." + * "SW Recommendation: If the PS kernel needs the Position Offsets + * to compute a Position XY value, this field should match Position + * ZW Interpolation Mode to ensure a consistent position.xyzw + * computation." + * We only require XY sample offsets. So, this recommendation doesn't + * look useful at the moment. We might need this in future. + */ + if (prog_data->uses_pos_offset) + dw4 |= GEN7_PS_POSOFFSET_SAMPLE; + else + dw4 |= GEN7_PS_POSOFFSET_NONE; - /* CACHE_NEW_WM_PROG */ - if (brw->wm.prog_data->nr_params > 0) - dw4 |= GEN7_PS_PUSH_CONSTANT_ENABLE; + /* The hardware wedges if you have this bit set but don't turn on any dual + * source blend factors. + */ + if (enable_dual_src_blend) + dw4 |= GEN7_PS_DUAL_SOURCE_BLEND_ENABLE; - /* BRW_NEW_FRAGMENT_PROGRAM */ - if (brw->fragment_program->Base.InputsRead != 0) + /* BRW_NEW_FS_PROG_DATA */ + if (prog_data->num_varying_inputs != 0) dw4 |= GEN7_PS_ATTRIBUTE_ENABLE; - if (brw->wm.prog_data->dispatch_width == 8) { - dw4 |= GEN7_PS_8_DISPATCH_ENABLE; - if (brw->wm.prog_data->prog_offset_16) - dw4 |= GEN7_PS_16_DISPATCH_ENABLE; - } else { + dw4 |= fast_clear_op; + + if (prog_data->dispatch_16) dw4 |= GEN7_PS_16_DISPATCH_ENABLE; - } - dw5 |= (brw->wm.prog_data->first_curbe_grf << - GEN7_PS_DISPATCH_START_GRF_SHIFT_0); - dw5 |= (brw->wm.prog_data->first_curbe_grf_16 << - GEN7_PS_DISPATCH_START_GRF_SHIFT_2); + if (prog_data->dispatch_8) + dw4 |= GEN7_PS_8_DISPATCH_ENABLE; + + dw5 |= prog_data->base.dispatch_grf_start_reg << + GEN7_PS_DISPATCH_START_GRF_SHIFT_0; + dw5 |= prog_data->dispatch_grf_start_reg_2 << + GEN7_PS_DISPATCH_START_GRF_SHIFT_2; + + ksp0 = stage_state->prog_offset; + ksp2 = stage_state->prog_offset + prog_data->prog_offset_2; BEGIN_BATCH(8); OUT_BATCH(_3DSTATE_PS << 16 | (8 - 2)); - OUT_BATCH(brw->wm.prog_offset); + OUT_BATCH(ksp0); OUT_BATCH(dw2); - if (brw->wm.prog_data->total_scratch) { - OUT_RELOC(brw->wm.scratch_bo, + if (prog_data->base.total_scratch) { + OUT_RELOC(brw->wm.base.scratch_bo, I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, - ffs(brw->wm.prog_data->total_scratch) - 11); + ffs(stage_state->per_thread_scratch) - 11); } else { OUT_BATCH(0); } OUT_BATCH(dw4); OUT_BATCH(dw5); OUT_BATCH(0); /* kernel 1 pointer */ - OUT_BATCH(brw->wm.prog_offset + brw->wm.prog_data->prog_offset_16); + OUT_BATCH(ksp2); ADVANCE_BATCH(); } +static void +upload_ps_state(struct brw_context *brw) +{ + /* BRW_NEW_FS_PROG_DATA */ + const struct brw_wm_prog_data *prog_data = brw->wm.prog_data; + const struct gl_context *ctx = &brw->ctx; + /* BRW_NEW_FS_PROG_DATA | _NEW_COLOR */ + const bool enable_dual_src_blend = prog_data->dual_src_blend && + (ctx->Color.BlendEnabled & 1) && + ctx->Color.Blend[0]._UsesDualSrc; + /* _NEW_BUFFERS, _NEW_MULTISAMPLE */ + const unsigned sample_mask = + brw->is_haswell ? gen6_determine_sample_mask(brw) : 0; + + gen7_upload_ps_state(brw, &brw->wm.base, prog_data, + enable_dual_src_blend, sample_mask, + brw->wm.fast_clear_op); +} + const struct brw_tracked_state gen7_ps_state = { .dirty = { - .mesa = _NEW_PROGRAM_CONSTANTS, - .brw = (BRW_NEW_FRAGMENT_PROGRAM | - BRW_NEW_PS_BINDING_TABLE | - BRW_NEW_BATCH), - .cache = (CACHE_NEW_SAMPLER | - CACHE_NEW_WM_PROG) + .mesa = _NEW_BUFFERS | + _NEW_COLOR | + _NEW_MULTISAMPLE, + .brw = BRW_NEW_BATCH | + BRW_NEW_BLORP | + BRW_NEW_FS_PROG_DATA, }, .emit = upload_ps_state, };