Mesa (master): i965: Add brw_store_register_mem32

[Jordan Justen]

Module: Mesa
Branch: master
Commit: 9f581f8f2407472be262bea8c82acde6ce29f2fb
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=9f581f8f2407472be262bea8c82acde6ce29f2fb

Author: Jordan Justen <jordan.l.justen at intel.com>
Date:   Thu Apr 14 19:43:45 2016 -0700

i965: Add brw_store_register_mem32

Signed-off-by: Jordan Justen <jordan.l.justen at intel.com>
Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>

---

 src/mesa/drivers/dri/i965/brw_context.h       |  2 ++
 src/mesa/drivers/dri/i965/intel_batchbuffer.c | 26 ++++++++++++++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/src/mesa/drivers/dri/i965/brw_context.h b/src/mesa/drivers/dri/i965/brw_context.h
index 948b082..efe7730 100644
--- a/src/mesa/drivers/dri/i965/brw_context.h
+++ b/src/mesa/drivers/dri/i965/brw_context.h
@@ -1448,6 +1448,8 @@ void brw_load_register_mem64(struct brw_context *brw,
                              drm_intel_bo *bo,
                              uint32_t read_domains, uint32_t write_domain,
                              uint32_t offset);
+void brw_store_register_mem32(struct brw_context *brw,
+                              drm_intel_bo *bo, uint32_t reg, uint32_t offset);
 void brw_store_register_mem64(struct brw_context *brw,
                               drm_intel_bo *bo, uint32_t reg, uint32_t offset);
 
diff --git a/src/mesa/drivers/dri/i965/intel_batchbuffer.c b/src/mesa/drivers/dri/i965/intel_batchbuffer.c
index cd5d301..03a31b6 100644
--- a/src/mesa/drivers/dri/i965/intel_batchbuffer.c
+++ b/src/mesa/drivers/dri/i965/intel_batchbuffer.c
@@ -539,6 +539,32 @@ brw_load_register_mem64(struct brw_context *brw,
 }
 
 /*
+ * Write an arbitrary 32-bit register to a buffer via MI_STORE_REGISTER_MEM.
+ */
+void
+brw_store_register_mem32(struct brw_context *brw,
+                         drm_intel_bo *bo, uint32_t reg, uint32_t offset)
+{
+   assert(brw->gen >= 6);
+
+   if (brw->gen >= 8) {
+      BEGIN_BATCH(4);
+      OUT_BATCH(MI_STORE_REGISTER_MEM | (4 - 2));
+      OUT_BATCH(reg);
+      OUT_RELOC64(bo, I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION,
+                  offset);
+      ADVANCE_BATCH();
+   } else {
+      BEGIN_BATCH(3);
+      OUT_BATCH(MI_STORE_REGISTER_MEM | (3 - 2));
+      OUT_BATCH(reg);
+      OUT_RELOC(bo, I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION,
+                offset);
+      ADVANCE_BATCH();
+   }
+}
+
+/*
  * Write an arbitrary 64-bit register to a buffer via MI_STORE_REGISTER_MEM.
  */
 void