[Intel-gfx] [PATCH] drm/i915/display: Compute aux ch power domain during DDI initialization
Souza, Jose
jose.souza at intel.com
Wed Feb 17 19:50:13 UTC 2021
On Wed, 2021-02-17 at 21:38 +0200, Imre Deak wrote:
> On Wed, Feb 17, 2021 at 10:02:45AM -0800, José Roberto de Souza wrote:
> > Future platform will require a power domain that do not mach with aux
> > ch id, so here already preparing code for that by dropping the
> > functions that converts the aux ch to power domains and initializaing
> > aux_power_domain during intel_ddi_init().
> >
> > Cc: Uma Shankar <uma.shankar at intel.com>
> > Cc: Imre Deak <imre.deak at intel.com>
> > Signed-off-by: José Roberto de Souza <jose.souza at intel.com>
> > ---
> > drivers/gpu/drm/i915/display/intel_ddi.c | 4 +-
> > drivers/gpu/drm/i915/display/intel_display.c | 58 ++-----------------
> > drivers/gpu/drm/i915/display/intel_display.h | 2 -
> > .../drm/i915/display/intel_display_types.h | 2 +
> > drivers/gpu/drm/i915/display/intel_tc.c | 2 +-
> > 5 files changed, 10 insertions(+), 58 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
> > index eeae78097a20..ec5c1f91aee9 100644
> > --- a/drivers/gpu/drm/i915/display/intel_ddi.c
> > +++ b/drivers/gpu/drm/i915/display/intel_ddi.c
> > @@ -4152,7 +4152,9 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
> >
> >
> > drm_WARN_ON(&dev_priv->drm, port > PORT_I);
> > dig_port->ddi_io_power_domain = POWER_DOMAIN_PORT_DDI_A_IO +
> > - port - PORT_A;
> > + port - PORT_A;
> > + dig_port->aux_power_domain = POWER_DOMAIN_AUX_A + dig_port->aux_ch -
> > + AUX_CH_A;
> >
> >
> > if (init_dp) {
> > if (!intel_ddi_init_dp_connector(dig_port))
> > diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> > index acade004e8b1..3581aa50034e 100644
> > --- a/drivers/gpu/drm/i915/display/intel_display.c
> > +++ b/drivers/gpu/drm/i915/display/intel_display.c
> > @@ -4235,61 +4235,11 @@ intel_aux_power_domain(struct intel_digital_port *dig_port)
> > enum phy phy = intel_port_to_phy(dev_priv, dig_port->base.port);
> >
> >
> > if (intel_phy_is_tc(dev_priv, phy) &&
> > - dig_port->tc_mode == TC_PORT_TBT_ALT) {
> > - switch (dig_port->aux_ch) {
> > - case AUX_CH_C:
> > - return POWER_DOMAIN_AUX_C_TBT;
> > - case AUX_CH_D:
> > - return POWER_DOMAIN_AUX_D_TBT;
> > - case AUX_CH_E:
> > - return POWER_DOMAIN_AUX_E_TBT;
> > - case AUX_CH_F:
> > - return POWER_DOMAIN_AUX_F_TBT;
> > - case AUX_CH_G:
> > - return POWER_DOMAIN_AUX_G_TBT;
> > - case AUX_CH_H:
> > - return POWER_DOMAIN_AUX_H_TBT;
> > - case AUX_CH_I:
> > - return POWER_DOMAIN_AUX_I_TBT;
> > - default:
> > - MISSING_CASE(dig_port->aux_ch);
> > - return POWER_DOMAIN_AUX_C_TBT;
> > - }
> > - }
> > -
> > - return intel_legacy_aux_to_power_domain(dig_port->aux_ch);
> > -}
> > + dig_port->tc_mode == TC_PORT_TBT_ALT)
> > + return POWER_DOMAIN_AUX_C_TBT + dig_port->aux_power_domain -
> > + POWER_DOMAIN_AUX_A;
> >
> >
> > -/*
> > - * Converts aux_ch to power_domain without caring about TBT ports for that use
> > - * intel_aux_power_domain()
> > - */
> > -enum intel_display_power_domain
> > -intel_legacy_aux_to_power_domain(enum aux_ch aux_ch)
> > -{
> > - switch (aux_ch) {
> > - case AUX_CH_A:
> > - return POWER_DOMAIN_AUX_A;
> > - case AUX_CH_B:
> > - return POWER_DOMAIN_AUX_B;
> > - case AUX_CH_C:
> > - return POWER_DOMAIN_AUX_C;
> > - case AUX_CH_D:
> > - return POWER_DOMAIN_AUX_D;
> > - case AUX_CH_E:
> > - return POWER_DOMAIN_AUX_E;
> > - case AUX_CH_F:
> > - return POWER_DOMAIN_AUX_F;
> > - case AUX_CH_G:
> > - return POWER_DOMAIN_AUX_G;
> > - case AUX_CH_H:
> > - return POWER_DOMAIN_AUX_H;
> > - case AUX_CH_I:
> > - return POWER_DOMAIN_AUX_I;
> > - default:
> > - MISSING_CASE(aux_ch);
> > - return POWER_DOMAIN_AUX_A;
> > - }
> > + return dig_port->aux_power_domain;
> > }
> >
> >
> > static u64 get_crtc_power_domains(struct intel_crtc_state *crtc_state)
> > diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
> > index 73b9d9c95d55..525ad555528f 100644
> > --- a/drivers/gpu/drm/i915/display/intel_display.h
> > +++ b/drivers/gpu/drm/i915/display/intel_display.h
> > @@ -614,8 +614,6 @@ void hsw_disable_ips(const struct intel_crtc_state *crtc_state);
> > enum intel_display_power_domain intel_port_to_power_domain(enum port port);
> > enum intel_display_power_domain
> > intel_aux_power_domain(struct intel_digital_port *dig_port);
> > -enum intel_display_power_domain
> > -intel_legacy_aux_to_power_domain(enum aux_ch aux_ch);
> > void intel_crtc_arm_fifo_underrun(struct intel_crtc *crtc,
> > struct intel_crtc_state *crtc_state);
> > void ilk_pfit_disable(const struct intel_crtc_state *old_crtc_state);
> > diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
> > index 07b7f5eae587..d527cb2ad070 100644
> > --- a/drivers/gpu/drm/i915/display/intel_display_types.h
> > +++ b/drivers/gpu/drm/i915/display/intel_display_types.h
> > @@ -1589,6 +1589,8 @@ struct intel_digital_port {
> > /* Used for DP and ICL+ TypeC/DP and TypeC/HDMI ports. */
> > enum aux_ch aux_ch;
> > enum intel_display_power_domain ddi_io_power_domain;
> > + /* Regular/legacy aux channel power domain */
> > + enum intel_display_power_domain aux_power_domain;
>
> What's the rational for storing it here? If there's a good one then I'd
> rather call this legacy_aux_power_domain and store the tbt aux domains
> here as well. It would also need to get initialized for dp encoders.
This is a preparation for a future platform that will need a different
aux power domain that do not mach with aux ch id.
Yeah I missed the initialization for non-DDI platforms.
>
> > intel_wakeref_t ddi_io_wakeref;
> > intel_wakeref_t aux_wakeref;
> > struct mutex tc_lock; /* protects the TypeC port mode */
> > diff --git a/drivers/gpu/drm/i915/display/intel_tc.c b/drivers/gpu/drm/i915/display/intel_tc.c
> > index 2cefc13535a0..83080e15ad7a 100644
> > --- a/drivers/gpu/drm/i915/display/intel_tc.c
> > +++ b/drivers/gpu/drm/i915/display/intel_tc.c
> > @@ -29,7 +29,7 @@ tc_cold_get_power_domain(struct intel_digital_port *dig_port)
> > struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> >
> >
> > if (INTEL_GEN(i915) == 11)
> > - return intel_legacy_aux_to_power_domain(dig_port->aux_ch);
> > + return dig_port->aux_power_domain;
> > else
> > return POWER_DOMAIN_TC_COLD_OFF;
> > }
> > --
> > 2.30.1
> >
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