intel: decoder: identify groups with fixed length

<register> & <struct> elements always have fixed length. The
get_length() method implies that we're dealing with an instruction in
which the length is encoded into the variable data but the field
iterator uses it without checking what kind of gen_group it is dealing
with.

Let's make get_length() report the correct length regardless of the
gen_group (register, struct or instruction).

Signed-off-by: Lionel Landwerlin <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/intel/common/gen_decoder.h b/src/intel/common/gen_decoder.h
index f28ac7d27af..7d3bedca5b5 100644
--- a/src/intel/common/gen_decoder.h
+++ b/src/intel/common/gen_decoder.h
@@ -104,6 +104,7 @@ struct gen_group {
    uint32_t group_offset, group_count;
    uint32_t group_size;
    bool variable;
+   bool fixed_length; /* True for <struct> & <register> */
 
    struct gen_group *parent;
    struct gen_group *next;