> -----Original Message-----
> From: Intel-gfx <intel-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of
> Bhanuprakash Modem
> Sent: Wednesday, February 21, 2024 4:42 PM
> To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> Cc: Modem, Bhanuprakash <bhanuprakash.modem@xxxxxxxxx>
> Subject: [PATCH] drm/i915/display/debugfs: New entry "DRRS capable" to
> i915_drrs_status
>
> If the connected panel supports both DRRS & PSR, driver gives preference to
> PSR ("DRRS enabled: no"). Even though the hardware supports DRRS, IGT
> treats ("DRRS enabled: yes") as not capable.
>
> Introduce a new entry "DRRS capable" to debugfs i915_drrs_status, so that
> IGT will read the DRRS capability as "DRRS capable: yes".
>
> Signed-off-by: Bhanuprakash Modem <bhanuprakash.modem@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/display/intel_drrs.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_drrs.c
> b/drivers/gpu/drm/i915/display/intel_drrs.c
> index 6282ec0fc9b4..169ef38ff188 100644
> --- a/drivers/gpu/drm/i915/display/intel_drrs.c
> +++ b/drivers/gpu/drm/i915/display/intel_drrs.c
> @@ -299,6 +299,7 @@ void intel_drrs_crtc_init(struct intel_crtc *crtc) static
> int intel_drrs_debugfs_status_show(struct seq_file *m, void *unused) {
> struct intel_crtc *crtc = m->private;
> + struct drm_i915_private *i915 = to_i915(crtc->base.dev);
> const struct intel_crtc_state *crtc_state;
> int ret;
>
> @@ -310,6 +311,11 @@ static int intel_drrs_debugfs_status_show(struct
> seq_file *m, void *unused)
>
> mutex_lock(&crtc->drrs.mutex);
>
> + seq_printf(m, "DRRS capable: %s\n",
> + str_yes_no(crtc_state->has_drrs ||
> + HAS_DOUBLE_BUFFERED_M_N(i915) ||
> + intel_cpu_transcoder_has_m2_n2(i915,
> +crtc_state->cpu_transcoder)));
> +
Adding DRRS capable property to debugfs.
Change LGTM
Reviewed-by: Mitul Golani <mitulkumar.ajitkumar.golani@xxxxxxxxx>
> seq_printf(m, "DRRS enabled: %s\n",
> str_yes_no(crtc_state->has_drrs));
>
> --
> 2.43.0
