intel: gen-decoder: print all dword a field belongs to

Prior to printing a decoded field, print out all dwords that field
belongs to. In particular with address fields spanning multiple
dwords, we want to have all the dwords presented before the field is
decoded to make it easier to read.

Signed-off-by: Lionel Landwerlin <[email protected]>
Reviewed-by: Scott D Phillips <[email protected]>

1 files changed, 7 insertions, 6 deletions

diff --git a/src/intel/common/gen_decoder.c b/src/intel/common/gen_decoder.c
index 595fa29e43d..1b8123bf394 100644
--- a/src/intel/common/gen_decoder.c
+++ b/src/intel/common/gen_decoder.c
@@ -841,7 +841,8 @@ iter_advance_field(struct gen_field_iterator *iter)
 
    int group_member_offset = iter_group_offset_bits(iter, iter->group_iter);
 
-   iter->bit = group_member_offset + iter->field->start;
+   iter->start_bit = group_member_offset + iter->field->start;
+   iter->end_bit = group_member_offset + iter->field->end;
    iter->struct_desc = NULL;
 
    return true;
@@ -852,10 +853,10 @@ iter_decode_field_raw(struct gen_field_iterator *iter, uint64_t *qw)
 {
    *qw = 0;
 
-   int field_start = iter->p_bit + iter->bit;
-   int field_end = field_start + (iter->field->end - iter->field->start);
+   int field_start = iter->p_bit + iter->start_bit;
+   int field_end = iter->p_bit + iter->end_bit;
 
-   const uint32_t *p = iter->p + (iter->bit / 32);
+   const uint32_t *p = iter->p + (iter->start_bit / 32);
    if (iter->p_end && p >= iter->p_end)
       return false;
 
@@ -1040,7 +1041,7 @@ gen_print_group(FILE *outfile, struct gen_group *group, uint64_t offset,
 
    gen_field_iterator_init(&iter, group, p, p_bit, color);
    do {
-      int iter_dword = iter.bit / 32;
+      int iter_dword = iter.end_bit / 32;
       if (last_dword != iter_dword) {
          for (int i = last_dword + 1; i <= iter_dword; i++)
             print_dword_header(outfile, &iter, offset, i);
@@ -1051,7 +1052,7 @@ gen_print_group(FILE *outfile, struct gen_group *group, uint64_t offset,
          if (iter.struct_desc) {
             uint64_t struct_offset = offset + 4 * iter_dword;
             gen_print_group(outfile, iter.struct_desc, struct_offset,
-                            &p[iter_dword], iter.bit % 32, color);
+                            &p[iter_dword], iter.start_bit % 32, color);
          }
       }
    } while (gen_field_iterator_next(&iter));