DC3CO is allowed in all the combinations between pipe and port A and B on alderlake-P.
BSpec: 49196 Cc: Anshuman Gupta <[email protected]> Cc: Gwan-gyeong Mun <[email protected]> Cc: Matt Atwood <[email protected]> Signed-off-by: José Roberto de Souza <[email protected]> --- drivers/gpu/drm/i915/display/intel_psr.c | 20 ++++++++++++++++---- 1 file changed, 16 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c index 216626444c76..c57210862206 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -646,12 +646,26 @@ static void tgl_disallow_dc3co_on_psr2_exit(struct intel_dp *intel_dp) tgl_psr2_disable_dc3co(intel_dp); } +static bool +dc3co_is_pipe_port_compatible(struct intel_dp *intel_dp, + struct intel_crtc_state *crtc_state) +{ + struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); + enum pipe pipe = to_intel_crtc(crtc_state->uapi.crtc)->pipe; + struct drm_i915_private *dev_priv = dp_to_i915(intel_dp); + enum port port = dig_port->base.port; + + if (IS_ALDERLAKE_P(dev_priv)) + return pipe <= PIPE_B && port <= PORT_B; + else + return pipe == PIPE_A && port == PORT_A; +} + static void tgl_dc3co_exitline_compute_config(struct intel_dp *intel_dp, struct intel_crtc_state *crtc_state) { const u32 crtc_vdisplay = crtc_state->uapi.adjusted_mode.crtc_vdisplay; - struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); struct drm_i915_private *dev_priv = dp_to_i915(intel_dp); u32 exit_scanlines; @@ -672,9 +686,7 @@ tgl_dc3co_exitline_compute_config(struct intel_dp *intel_dp, if (!(dev_priv->dmc.allowed_dc_mask & DC_STATE_EN_DC3CO)) return; - /* B.Specs:49196 DC3CO only works with pipeA and DDIA.*/ - if (to_intel_crtc(crtc_state->uapi.crtc)->pipe != PIPE_A || - dig_port->base.port != PORT_A) + if (!dc3co_is_pipe_port_compatible(intel_dp, crtc_state)) return; /* -- 2.31.1 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
