[Mesa-dev] [PATCH 1/9] i965/eu: Take into account the target cache argument in brw_set_dp_read_message.

[Francisco Jerez]

brw_set_dp_read_message() was setting the data cache as send message
SFID on Gen7+ hardware, ignoring the target cache specified by the
caller.  Some of the callers were passing a bogus target cache value
as argument relying on brw_set_dp_read_message not to take it into
account.  Fix them too.
---
 src/mesa/drivers/dri/i965/brw_eu_emit.c          | 15 +++++++++++++--
 src/mesa/drivers/dri/i965/brw_vec4_generator.cpp |  7 +++++--
 2 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_eu_emit.c b/src/mesa/drivers/dri/i965/brw_eu_emit.c
index fc187d1..8850173 100644
--- a/src/mesa/drivers/dri/i965/brw_eu_emit.c
+++ b/src/mesa/drivers/dri/i965/brw_eu_emit.c
@@ -756,7 +756,15 @@ brw_set_dp_read_message(struct brw_codegen *p,
    unsigned sfid;
 
    if (devinfo->gen >= 7) {
-      sfid = GEN7_SFID_DATAPORT_DATA_CACHE;
+      if (target_cache == BRW_DATAPORT_READ_TARGET_RENDER_CACHE)
+         sfid = GEN6_SFID_DATAPORT_RENDER_CACHE;
+      else if (target_cache == BRW_DATAPORT_READ_TARGET_DATA_CACHE)
+         sfid = GEN7_SFID_DATAPORT_DATA_CACHE;
+      else if (target_cache == BRW_DATAPORT_READ_TARGET_SAMPLER_CACHE)
+         sfid = GEN6_SFID_DATAPORT_SAMPLER_CACHE;
+      else
+         unreachable("Invalid target cache");
+
    } else if (devinfo->gen == 6) {
       if (target_cache == BRW_DATAPORT_READ_TARGET_RENDER_CACHE)
 	 sfid = GEN6_SFID_DATAPORT_RENDER_CACHE;
@@ -2204,6 +2212,9 @@ brw_oword_block_read_scratch(struct brw_codegen *p,
        num_regs == 2 ? BRW_DATAPORT_OWORD_BLOCK_4_OWORDS :
        num_regs == 4 ? BRW_DATAPORT_OWORD_BLOCK_8_OWORDS : 0);
    assert(msg_control);
+   const unsigned target_cache = devinfo->gen >= 7 ?
+      BRW_DATAPORT_READ_TARGET_DATA_CACHE :
+      BRW_DATAPORT_READ_TARGET_RENDER_CACHE;
 
    {
       brw_push_insn_state(p);
@@ -2238,7 +2249,7 @@ brw_oword_block_read_scratch(struct brw_codegen *p,
                               brw_scratch_surface_idx(p),
 			      msg_control,
 			      BRW_DATAPORT_READ_MESSAGE_OWORD_BLOCK_READ, /* msg_type */
-			      BRW_DATAPORT_READ_TARGET_RENDER_CACHE,
+			      target_cache,
 			      1, /* msg_length */
                               true, /* header_present */
 			      rlen);
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_generator.cpp b/src/mesa/drivers/dri/i965/brw_vec4_generator.cpp
index 7ad4f86..27d4f7b 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_generator.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_generator.cpp
@@ -1140,6 +1140,10 @@ generate_scratch_read(struct brw_codegen *p,
    else
       msg_type = BRW_DATAPORT_READ_MESSAGE_OWORD_DUAL_BLOCK_READ;
 
+   const unsigned target_cache = devinfo->gen >= 7 ?
+      BRW_DATAPORT_READ_TARGET_DATA_CACHE :
+      BRW_DATAPORT_READ_TARGET_RENDER_CACHE;
+
    /* Each of the 8 channel enables is considered for whether each
     * dword is written.
     */
@@ -1151,8 +1155,7 @@ generate_scratch_read(struct brw_codegen *p,
    brw_set_dp_read_message(p, send,
                            brw_scratch_surface_idx(p),
 			   BRW_DATAPORT_OWORD_DUAL_BLOCK_1OWORD,
-			   msg_type,
-			   BRW_DATAPORT_READ_TARGET_RENDER_CACHE,
+			   msg_type, target_cache,
 			   2, /* mlen */
                            true, /* header_present */
 			   1 /* rlen */);
-- 
2.9.0