intel/brw: Add TGL_PIPE_SCALAR value

Add the enum value for the (in-order) scalar pipe.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32236>

src/intel/compiler/brw_disasm.c

@@ -1879,7 +1879,8 @@ swsb(FILE *file, const struct brw_isa_info *isa, const brw_inst *inst)
               swsb.pipe == TGL_PIPE_INT ? "I" :
               swsb.pipe == TGL_PIPE_LONG ? "L" :
               swsb.pipe == TGL_PIPE_ALL ? "A"  :
-              swsb.pipe == TGL_PIPE_MATH ? "M" : "" ),
+              swsb.pipe == TGL_PIPE_MATH ? "M" :
+              swsb.pipe == TGL_PIPE_SCALAR ? "S" : "" ),
              swsb.regdist);
    if (swsb.mode)
       format(file, " $%d%s", swsb.sbid,

src/intel/compiler/brw_eu_defines.h

@@ -895,6 +895,9 @@ operator|=(tgl_sbid_mode &x, tgl_sbid_mode y)
  * the hardware to infer the pipeline based on the source types of the
  * instruction.  TGL_PIPE_ALL can be used when synchronization with all ALU
  * pipelines is intended.
+ *
+ * Xe3 adds TGL_PIPE_SCALAR for a very specific use case (writing immediates
+ * to scalar register).
  */
 enum tgl_pipe {
    TGL_PIPE_NONE = 0,
@@ -902,6 +905,7 @@ enum tgl_pipe {
    TGL_PIPE_INT,
    TGL_PIPE_LONG,
    TGL_PIPE_MATH,
+   TGL_PIPE_SCALAR,
    TGL_PIPE_ALL
 };
 
@@ -989,6 +993,7 @@ tgl_swsb_encode(const struct intel_device_info *devinfo,
          swsb.pipe == TGL_PIPE_INT ? 0x18 :
          swsb.pipe == TGL_PIPE_LONG ? 0x20 :
          swsb.pipe == TGL_PIPE_MATH ? 0x28 :
+         swsb.pipe == TGL_PIPE_SCALAR ? 0x30 :
          swsb.pipe == TGL_PIPE_ALL ? 0x8 : 0;
       return pipe | swsb.regdist;
 

src/intel/compiler/brw_print.cpp

@@ -651,7 +651,8 @@ brw_print_swsb(FILE *f, const struct intel_device_info *devinfo, const tgl_swsb
                swsb.pipe == TGL_PIPE_INT ? "I" :
                swsb.pipe == TGL_PIPE_LONG ? "L" :
                swsb.pipe == TGL_PIPE_ALL ? "A"  :
-               swsb.pipe == TGL_PIPE_MATH ? "M" : "" ),
+               swsb.pipe == TGL_PIPE_MATH ? "M" :
+               swsb.pipe == TGL_PIPE_SCALAR ? "S" : "" ),
               swsb.regdist);
    }