From 62b79b4bb9d8a4a8679c3d1e1f5455ce33d7b90a Mon Sep 17 00:00:00 2001 From: Kenneth Graunke Date: Tue, 19 Apr 2011 15:38:10 -0700 Subject: [PATCH] i965: Set Address Modify Enable in VERTEX_BUFFER on Ivybridge. Otherwise, Ivybridge seems to ignore the newly supplied data, giving us rubbish for vertices. Signed-off-by: Kenneth Graunke Reviewed-by: Eric Anholt --- src/mesa/drivers/dri/i965/brw_defines.h | 1 + src/mesa/drivers/dri/i965/brw_draw_upload.c | 3 +++ 2 files changed, 4 insertions(+) diff --git a/src/mesa/drivers/dri/i965/brw_defines.h b/src/mesa/drivers/dri/i965/brw_defines.h index 9f1234446eb..5eb7892bb08 100644 --- a/src/mesa/drivers/dri/i965/brw_defines.h +++ b/src/mesa/drivers/dri/i965/brw_defines.h @@ -860,6 +860,7 @@ # define BRW_VB0_ACCESS_INSTANCEDATA (1 << 26) # define GEN6_VB0_ACCESS_VERTEXDATA (0 << 20) # define GEN6_VB0_ACCESS_INSTANCEDATA (1 << 20) +# define GEN7_VB0_ADDRESS_MODIFYENABLE (1 << 14) # define BRW_VB0_PITCH_SHIFT 0 #define CMD_VERTEX_ELEMENT 0x7809 diff --git a/src/mesa/drivers/dri/i965/brw_draw_upload.c b/src/mesa/drivers/dri/i965/brw_draw_upload.c index 9389eb6733f..3cc33720486 100644 --- a/src/mesa/drivers/dri/i965/brw_draw_upload.c +++ b/src/mesa/drivers/dri/i965/brw_draw_upload.c @@ -570,6 +570,9 @@ static void brw_emit_vertices(struct brw_context *brw) dw0 = BRW_VB0_ACCESS_VERTEXDATA | (i << BRW_VB0_INDEX_SHIFT); } + if (intel->gen >= 7) + dw0 |= GEN7_VB0_ADDRESS_MODIFYENABLE; + OUT_BATCH(dw0 | (buffer->stride << BRW_VB0_PITCH_SHIFT)); OUT_RELOC(buffer->bo, I915_GEM_DOMAIN_VERTEX, 0, buffer->offset); if (intel->gen >= 5) {