[Mesa-dev] [PATCH 1/2] i965: Turn brw->urb.vs_size and gs_size into local variables.

Kenneth Graunke kenneth at whitecape.org
Tue Apr 2 21:11:50 PDT 2013


These variables are only used within a single function, so we may as
well make them local variables.

Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
---
 src/mesa/drivers/dri/i965/brw_context.h |  9 ---------
 src/mesa/drivers/dri/i965/gen6_urb.c    | 18 +++++++++---------
 src/mesa/drivers/dri/i965/gen7_urb.c    |  7 +++----
 3 files changed, 12 insertions(+), 22 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_context.h b/src/mesa/drivers/dri/i965/brw_context.h
index ea5b62a..d3a5042 100644
--- a/src/mesa/drivers/dri/i965/brw_context.h
+++ b/src/mesa/drivers/dri/i965/brw_context.h
@@ -859,15 +859,6 @@ struct brw_context
       GLuint nr_sf_entries;
       GLuint nr_cs_entries;
 
-      /* gen6:
-       * The length of each URB entry owned by the VS (or GS), as
-       * a number of 1024-bit (128-byte) rows.  Should be >= 1.
-       *
-       * gen7: Same meaning, but in 512-bit (64-byte) rows.
-       */
-      GLuint vs_size;
-      GLuint gs_size;
-
       GLuint vs_start;
       GLuint gs_start;
       GLuint clip_start;
diff --git a/src/mesa/drivers/dri/i965/gen6_urb.c b/src/mesa/drivers/dri/i965/gen6_urb.c
index 2d69cbe..aa985de 100644
--- a/src/mesa/drivers/dri/i965/gen6_urb.c
+++ b/src/mesa/drivers/dri/i965/gen6_urb.c
@@ -54,7 +54,7 @@ gen6_upload_urb( struct brw_context *brw )
    int total_urb_size = brw->urb.size * 1024; /* in bytes */
 
    /* CACHE_NEW_VS_PROG */
-   brw->urb.vs_size = MAX2(brw->vs.prog_data->urb_entry_size, 1);
+   unsigned vs_size = MAX2(brw->vs.prog_data->urb_entry_size, 1);
 
    /* We use the same VUE layout for VS outputs and GS outputs (as it's what
     * the SF and Clipper expect), so we can simply make the GS URB entry size
@@ -62,14 +62,14 @@ gen6_upload_urb( struct brw_context *brw )
     * where we have few vertex attributes and a lot of varyings, since the VS
     * size is determined by the larger of the two.  For now, it's safe.
     */
-   brw->urb.gs_size = brw->urb.vs_size;
+   unsigned gs_size = vs_size;
 
    /* Calculate how many entries fit in each stage's section of the URB */
    if (brw->gs.prog_active) {
-      nr_vs_entries = (total_urb_size/2) / (brw->urb.vs_size * 128);
-      nr_gs_entries = (total_urb_size/2) / (brw->urb.gs_size * 128);
+      nr_vs_entries = (total_urb_size/2) / (vs_size * 128);
+      nr_gs_entries = (total_urb_size/2) / (gs_size * 128);
    } else {
-      nr_vs_entries = total_urb_size / (brw->urb.vs_size * 128);
+      nr_vs_entries = total_urb_size / (vs_size * 128);
       nr_gs_entries = 0;
    }
 
@@ -87,14 +87,14 @@ gen6_upload_urb( struct brw_context *brw )
    assert(brw->urb.nr_vs_entries >= 24);
    assert(brw->urb.nr_vs_entries % 4 == 0);
    assert(brw->urb.nr_gs_entries % 4 == 0);
-   assert(brw->urb.vs_size < 5);
-   assert(brw->urb.gs_size < 5);
+   assert(vs_size < 5);
+   assert(gs_size < 5);
 
    BEGIN_BATCH(3);
    OUT_BATCH(_3DSTATE_URB << 16 | (3 - 2));
-   OUT_BATCH(((brw->urb.vs_size - 1) << GEN6_URB_VS_SIZE_SHIFT) |
+   OUT_BATCH(((vs_size - 1) << GEN6_URB_VS_SIZE_SHIFT) |
 	     ((brw->urb.nr_vs_entries) << GEN6_URB_VS_ENTRIES_SHIFT));
-   OUT_BATCH(((brw->urb.gs_size - 1) << GEN6_URB_GS_SIZE_SHIFT) |
+   OUT_BATCH(((gs_size - 1) << GEN6_URB_GS_SIZE_SHIFT) |
 	     ((brw->urb.nr_gs_entries) << GEN6_URB_GS_ENTRIES_SHIFT));
    ADVANCE_BATCH();
 
diff --git a/src/mesa/drivers/dri/i965/gen7_urb.c b/src/mesa/drivers/dri/i965/gen7_urb.c
index 481497b..dafe1ad 100644
--- a/src/mesa/drivers/dri/i965/gen7_urb.c
+++ b/src/mesa/drivers/dri/i965/gen7_urb.c
@@ -82,9 +82,9 @@ gen7_upload_urb(struct brw_context *brw)
    int handle_region_size = (brw->urb.size - 16) * 1024; /* bytes */
 
    /* CACHE_NEW_VS_PROG */
-   brw->urb.vs_size = MAX2(brw->vs.prog_data->urb_entry_size, 1);
+   unsigned vs_size = MAX2(brw->vs.prog_data->urb_entry_size, 1);
 
-   int nr_vs_entries = handle_region_size / (brw->urb.vs_size * 64);
+   int nr_vs_entries = handle_region_size / (vs_size * 64);
    if (nr_vs_entries > brw->urb.max_vs_entries)
       nr_vs_entries = brw->urb.max_vs_entries;
 
@@ -100,8 +100,7 @@ gen7_upload_urb(struct brw_context *brw)
    assert(!brw->gs.prog_active);
 
    gen7_emit_vs_workaround_flush(intel);
-   gen7_emit_urb_state(brw, brw->urb.nr_vs_entries, brw->urb.vs_size,
-                       brw->urb.vs_start);
+   gen7_emit_urb_state(brw, brw->urb.nr_vs_entries, vs_size, brw->urb.vs_start);
 }
 
 void
-- 
1.8.1.1



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