diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-05-04 14:25:36 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-05-05 08:40:02 +0100 |
| commit | 1ca3712ca3429a617ed6c5f87718e4f6fe4ae0c6 (patch) | |
| tree | 3fa0b1567219c80d2c71b09e02ee4293a5766b7b /drivers/gpu/drm/i915/i915_cmd_parser.c | |
| parent | f58a1acc7e4a1f37d26124ce4c875c647fbcc61f (diff) | |
drm/i915: Report command parser version 0 if disabled
If the command parser is not active, then it is appropriate to report it
as operating at version 0 as no higher mode is supported. This greatly
simplifies userspace querying for the command parser as we then do not
need to second guess when it will be active (a mixture of module
parameters and generational support, which may change over time).
v2: s/comand/command/ misspelling in comment
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1462368336-21230-1-git-send-email-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_cmd_parser.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_cmd_parser.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_cmd_parser.c b/drivers/gpu/drm/i915/i915_cmd_parser.c index a337f33bec5b..69a1ba8ebdfb 100644 --- a/drivers/gpu/drm/i915/i915_cmd_parser.c +++ b/drivers/gpu/drm/i915/i915_cmd_parser.c @@ -1275,8 +1275,21 @@ int i915_parse_cmds(struct intel_engine_cs *engine, * * Return: the current version number of the cmd parser */ -int i915_cmd_parser_get_version(void) +int i915_cmd_parser_get_version(struct drm_i915_private *dev_priv) { + struct intel_engine_cs *engine; + bool active = false; + + /* If the command parser is not enabled, report 0 - unsupported */ + for_each_engine(engine, dev_priv) { + if (i915_needs_cmd_parser(engine)) { + active = true; + break; + } + } + if (!active) + return 0; + /* * Command parser version history * |