On Fri, Nov 10, 2017 at 12:34:56PM +0100, Maarten Lankhorst wrote:
> Some parameters use CHECK_BOOLL, but should really use
> CHECK_BOOL_INCOMPLETE. We cannot currently check whether
> the inherited infoframes and audio are set up correctly.
>
> Signed-off-by: Maarten Lankhorst <maarten.lankho...@linux.intel.com>
> ---
> drivers/gpu/drm/i915/intel_display.c | 19 +++++++++++++++++--
> 1 file changed, 17 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_display.c
> b/drivers/gpu/drm/i915/intel_display.c
> index 425167da560b..f5933b0719c9 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -11076,6 +11076,9 @@ intel_pipe_config_compare(struct drm_i915_private
> *dev_priv,
> bool adjust)
> {
> bool ret = true;
> + bool fixup_inherited = adjust &&
> + (current_config->base.mode.private_flags &
> I915_MODE_FLAG_INHERITED) &&
> + !(pipe_config->base.mode.private_flags &
> I915_MODE_FLAG_INHERITED);
>
> #define PIPE_CONF_CHECK_X(name) \
> if (current_config->name != pipe_config->name) { \
> @@ -11104,6 +11107,17 @@ intel_pipe_config_compare(struct drm_i915_private
> *dev_priv,
> ret = false; \
> }
>
Maybe add a comment here like
/*
* Checks state where we only read out the enabling, but not the entire
* state itself (like full infoframes or ELD for audio). These states
* require a full modeset on bootup to fix up.
*/
With that:
Reviewed-by: Daniel Vetter <daniel.vet...@ffwll.ch>
> +#define PIPE_CONF_CHECK_BOOL_INCOMPLETE(name) \
> + if (!fixup_inherited || (!current_config->name && !pipe_config->name))
> { \
> + PIPE_CONF_CHECK_BOOL(name); \
> + } else { \
> + pipe_config_err(adjust, __stringify(name), \
> + "unable to verify whether state matches exactly,
> forcing modeset (expected %s, found %s)\n", \
> + yesno(current_config->name), \
> + yesno(pipe_config->name)); \
> + ret = false; \
> + }
> +
> #define PIPE_CONF_CHECK_P(name) \
> if (current_config->name != pipe_config->name) { \
> pipe_config_err(adjust, __stringify(name), \
> @@ -11228,10 +11242,10 @@ intel_pipe_config_compare(struct drm_i915_private
> *dev_priv,
>
> PIPE_CONF_CHECK_BOOL(hdmi_scrambling);
> PIPE_CONF_CHECK_BOOL(hdmi_high_tmds_clock_ratio);
> - PIPE_CONF_CHECK_BOOL(has_infoframe);
> + PIPE_CONF_CHECK_BOOL_INCOMPLETE(has_infoframe);
> PIPE_CONF_CHECK_BOOL(ycbcr420);
>
> - PIPE_CONF_CHECK_BOOL(has_audio);
> + PIPE_CONF_CHECK_BOOL_INCOMPLETE(has_audio);
>
> PIPE_CONF_CHECK_FLAGS(base.adjusted_mode.flags,
> DRM_MODE_FLAG_INTERLACE);
> @@ -11306,6 +11320,7 @@ intel_pipe_config_compare(struct drm_i915_private
> *dev_priv,
> #undef PIPE_CONF_CHECK_X
> #undef PIPE_CONF_CHECK_I
> #undef PIPE_CONF_CHECK_BOOL
> +#undef PIPE_CONF_CHECK_BOOL_INCOMPLETE
> #undef PIPE_CONF_CHECK_P
> #undef PIPE_CONF_CHECK_FLAGS
> #undef PIPE_CONF_CHECK_CLOCK_FUZZY
> --
> 2.15.0
>
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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