mesa: add/update comments in _mesa_copy_buffer_subdata()

[mesa.git] / src / mesa / drivers / dri / i965 / brw_vs_state.c

diff --git a/src/mesa/drivers/dri/i965/brw_vs_state.c b/src/mesa/drivers/dri/i965/brw_vs_state.c
index d5010a21e80f68942cd219a88ce4e2b7182f3b42..f57212349572718af4ad5e98acef7a28aa544329 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_vs_state.c
+++ b/src/mesa/drivers/dri/i965/brw_vs_state.c
@@ -37,16 +37,18 @@
 #include "main/macros.h"
 
 static void
-brw_prepare_vs_unit(struct brw_context *brw)
+brw_upload_vs_unit(struct brw_context *brw)
 {
    struct intel_context *intel = &brw->intel;
    struct gl_context *ctx = &intel->ctx;
    struct brw_vs_unit_state *vs;
 
-   vs = brw_state_batch(brw, sizeof(*vs), 32, &brw->vs.state_offset);
+   vs = brw_state_batch(brw, AUB_TRACE_VS_STATE,
+                       sizeof(*vs), 32, &brw->vs.state_offset);
    memset(vs, 0, sizeof(*vs));
 
    /* BRW_NEW_PROGRAM_CACHE | CACHE_NEW_VS_PROG */
+   vs->thread0.grf_reg_count = ALIGN(brw->vs.prog_data->total_grf, 16) / 16 - 1;
    vs->thread0.kernel_start_pointer =
       brw_program_reloc(brw,
                        brw->vs.state_offset +
@@ -54,14 +56,13 @@ brw_prepare_vs_unit(struct brw_context *brw)
                        brw->vs.prog_offset +
                        (vs->thread0.grf_reg_count << 1)) >> 6;
 
-   vs->thread0.grf_reg_count = ALIGN(brw->vs.prog_data->total_grf, 16) / 16 - 1;
    vs->thread1.floating_point_mode = BRW_FLOATING_POINT_NON_IEEE_754;
    /* Choosing multiple program flow means that we may get 2-vertex threads,
     * which will have the channel mask for dwords 4-7 enabled in the thread,
     * and those dwords will be written to the second URB handle when we
     * brw_urb_WRITE() results.
     */
-   /* Disable single program flow on Ironlake.  We cannot reliably get
+   /* Force single program flow on Ironlake.  We cannot reliably get
     * all applications working without it.  See:
     * https://bugs.freedesktop.org/show_bug.cgi?id=29172
     *
@@ -70,19 +71,25 @@ brw_prepare_vs_unit(struct brw_context *brw)
    */
    vs->thread1.single_program_flow = (intel->gen == 5);
 
-   /* BRW_NEW_NR_VS_SURFACES */
-   if (intel->gen == 5)
-      vs->thread1.binding_table_entry_count = 0; /* hardware requirement */
-   else
-      vs->thread1.binding_table_entry_count = brw->vs.nr_surfaces;
+   vs->thread1.binding_table_entry_count = 0;
+
+   if (brw->vs.prog_data->total_scratch != 0) {
+      vs->thread2.scratch_space_base_pointer =
+        brw->vs.scratch_bo->offset >> 10; /* reloc */
+      vs->thread2.per_thread_scratch_space =
+        ffs(brw->vs.prog_data->total_scratch) - 11;
+   } else {
+      vs->thread2.scratch_space_base_pointer = 0;
+      vs->thread2.per_thread_scratch_space = 0;
+   }
 
    vs->thread3.urb_entry_read_length = brw->vs.prog_data->urb_read_length;
    vs->thread3.const_urb_entry_read_length = brw->vs.prog_data->curb_read_length;
    vs->thread3.dispatch_grf_start_reg = 1;
    vs->thread3.urb_entry_read_offset = 0;
 
-   /* BRW_NEW_CURBE_OFFSETS, _NEW_TRANSFORM */
-   if (ctx->Transform.ClipPlanesEnabled) {
+   /* BRW_NEW_CURBE_OFFSETS, _NEW_TRANSFORM, BRW_NEW_VERTEX_PROGRAM */
+   if (ctx->Transform.ClipPlanesEnabled && !brw->vs.prog_data->uses_new_param_layout) {
       /* Note that we read in the userclip planes as well, hence
        * clip_start:
        */
@@ -131,7 +138,7 @@ brw_prepare_vs_unit(struct brw_context *brw)
    vs->thread4.urb_entry_allocation_size = brw->urb.vsize - 1;
 
    vs->thread4.max_threads = CLAMP(brw->urb.nr_vs_entries / 2,
-                                  1, brw->vs_max_threads) - 1;
+                                  1, brw->max_vs_threads) - 1;
 
    /* No samplers for ARB_vp programs:
     */
@@ -146,6 +153,16 @@ brw_prepare_vs_unit(struct brw_context *brw)
     */
    vs->vs6.vs_enable = 1;
 
+   /* Emit scratch space relocation */
+   if (brw->vs.prog_data->total_scratch != 0) {
+      drm_intel_bo_emit_reloc(intel->batch.bo,
+                             brw->vs.state_offset +
+                             offsetof(struct brw_vs_unit_state, thread2),
+                             brw->vs.scratch_bo,
+                             vs->thread2.per_thread_scratch_space,
+                             I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER);
+   }
+
    brw->state.dirty.cache |= CACHE_NEW_VS_UNIT;
 }
 
@@ -155,9 +172,9 @@ const struct brw_tracked_state brw_vs_unit = {
       .brw   = (BRW_NEW_BATCH |
                BRW_NEW_PROGRAM_CACHE |
                BRW_NEW_CURBE_OFFSETS |
-                BRW_NEW_NR_VS_SURFACES |
-               BRW_NEW_URB_FENCE),
+               BRW_NEW_URB_FENCE |
+                BRW_NEW_VERTEX_PROGRAM),
       .cache = CACHE_NEW_VS_PROG
    },
-   .prepare = brw_prepare_vs_unit,
+   .emit = brw_upload_vs_unit,
 };