From: Ben Widawsky <benjamin.widawsky@intel.com>
Date: Tue, 26 Jan 2016 23:42:08 +0000 (-0800)
Subject: i965/skl: Utilize new 5th bit for gateway messages
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c5dc6cdf26a8d2bf51a2a9a08b53eefcc00e74f0;p=mesa.git

i965/skl: Utilize new 5th bit for gateway messages

Cc: Jordan Justen <jordan.l.justen@intel.com>
Signed-off-by: Ben Widawsky <benjamin.widawsky@intel.com>
---

diff --git a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
index 0ff5cd6de19..4011bf5a2b7 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
@@ -926,6 +926,8 @@ void
 fs_visitor::emit_barrier()
 {
    assert(devinfo->gen >= 7);
+   const uint32_t barrier_id_mask =
+      devinfo->gen >= 9 ? 0x8f000000u : 0x0f000000u;
 
    /* We are getting the barrier ID from the compute shader header */
    assert(stage == MESA_SHADER_COMPUTE);
@@ -939,7 +941,7 @@ fs_visitor::emit_barrier()
 
    /* Copy bits 27:24 of r0.2 (barrier id) to the message payload reg.2 */
    fs_reg r0_2 = fs_reg(retype(brw_vec1_grf(0, 2), BRW_REGISTER_TYPE_UD));
-   pbld.AND(component(payload, 2), r0_2, brw_imm_ud(0x0f000000u));
+   pbld.AND(component(payload, 2), r0_2, brw_imm_ud(barrier_id_mask));
 
    /* Emit a gateway "barrier" message using the payload we set up, followed
     * by a wait instruction.