From 6f9095d1ae7d6a178741e26d493af024727e30f1 Mon Sep 17 00:00:00 2001
From: Imre Deak <imre.deak@intel.com>
Date: Fri, 15 Apr 2022 00:06:53 +0300
Subject: drm/i915: Sanitize the port -> DDI/AUX power domain mapping for each
platform
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Git-commit: 979e1b32e0e202197f182ec0abfadecbdd53b1ec
Patch-mainline: v5.19-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
Atm the port -> DDI and AUX power domain mapping is specified by relying
on the aliasing of the platform specific intel_display_power_domain enum
values. For instance D12+ platforms refer to the 'D' port and power
domain instances, which doesn't match the bspec terminology, on these
platforms the corresponding port is TC1. To make it clear what
port/domain the code refers to add a mapping between them which matches
the bspec terms on different display versions.
This also allows for removing the aliasing in enum values in a follow-up
patch.
v2: Add the functions to intel_display_power.c, use
intel_display_power_ prefix.
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220414210657.1785773-14-imre.deak@intel.com
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/i915/display/g4x_dp.c | 3 +-
drivers/gpu/drm/i915/display/g4x_hdmi.c | 3 +-
drivers/gpu/drm/i915/display/intel_ddi.c | 6 +-
drivers/gpu/drm/i915/display/intel_display.c | 85 +-------
drivers/gpu/drm/i915/display/intel_display.h | 4 +-
.../drm/i915/display/intel_display_power.c | 206 ++++++++++++++++++
.../drm/i915/display/intel_display_power.h | 12 +
drivers/gpu/drm/i915/display/intel_tc.c | 5 +-
8 files changed, 235 insertions(+), 89 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/g4x_dp.c b/drivers/gpu/drm/i915/display/g4x_dp.c
index 16bb21ad898b..5a957acebfd6 100644
--- a/drivers/gpu/drm/i915/display/g4x_dp.c
+++ b/drivers/gpu/drm/i915/display/g4x_dp.c
@@ -13,6 +13,7 @@
#include "intel_connector.h"
#include "intel_crtc.h"
#include "intel_de.h"
+#include "intel_display_power.h"
#include "intel_display_types.h"
#include "intel_dp.h"
#include "intel_dp_link_training.h"
@@ -1375,7 +1376,7 @@ bool g4x_dp_init(struct drm_i915_private *dev_priv,
dig_port->max_lanes = 4;
intel_encoder->type = INTEL_OUTPUT_DP;
- intel_encoder->power_domain = intel_port_to_power_domain(port);
+ intel_encoder->power_domain = intel_display_power_ddi_lanes_domain(dev_priv, port);
if (IS_CHERRYVIEW(dev_priv)) {
if (port == PORT_D)
intel_encoder->pipe_mask = BIT(PIPE_C);
diff --git a/drivers/gpu/drm/i915/display/g4x_hdmi.c b/drivers/gpu/drm/i915/display/g4x_hdmi.c
index 8bfef08b7c43..5fbd2ae95869 100644
--- a/drivers/gpu/drm/i915/display/g4x_hdmi.c
+++ b/drivers/gpu/drm/i915/display/g4x_hdmi.c
@@ -10,6 +10,7 @@
#include "intel_connector.h"
#include "intel_crtc.h"
#include "intel_de.h"
+#include "intel_display_power.h"
#include "intel_display_types.h"
#include "intel_dpio_phy.h"
#include "intel_fifo_underrun.h"
@@ -574,7 +575,7 @@ void g4x_hdmi_init(struct drm_i915_private *dev_priv,
intel_encoder->shutdown = intel_hdmi_encoder_shutdown;
intel_encoder->type = INTEL_OUTPUT_HDMI;
- intel_encoder->power_domain = intel_port_to_power_domain(port);
+ intel_encoder->power_domain = intel_display_power_ddi_lanes_domain(dev_priv, port);
intel_encoder->port = port;
if (IS_CHERRYVIEW(dev_priv)) {
if (port == PORT_D)
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 8a4334eb0326..9e6fa59eabba 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -40,6 +40,7 @@
#include "intel_ddi.h"
#include "intel_ddi_buf_trans.h"
#include "intel_de.h"
+#include "intel_display_power.h"
#include "intel_display_types.h"
#include "intel_dp.h"
#include "intel_dp_link_training.h"
@@ -4364,7 +4365,7 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
encoder->get_power_domains = intel_ddi_get_power_domains;
encoder->type = INTEL_OUTPUT_DDI;
- encoder->power_domain = intel_port_to_power_domain(port);
+ encoder->power_domain = intel_display_power_ddi_lanes_domain(dev_priv, port);
encoder->port = port;
encoder->cloneable = 0;
encoder->pipe_mask = ~0;
@@ -4492,8 +4493,7 @@ 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_IO_A +
- port - PORT_A;
+ dig_port->ddi_io_power_domain = intel_display_power_ddi_io_domain(dev_priv, port);
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 2813e108f205..66dcd6e5289d 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -51,6 +51,7 @@
#include "display/intel_crt.h"
#include "display/intel_ddi.h"
#include "display/intel_display_debugfs.h"
+#include "display/intel_display_power.h"
#include "display/intel_dp.h"
#include "display/intel_dp_mst.h"
#include "display/intel_dpll.h"
@@ -2157,91 +2158,15 @@ enum tc_port intel_port_to_tc(struct drm_i915_private *dev_priv, enum port port)
return TC_PORT_1 + port - PORT_C;
}
-enum intel_display_power_domain intel_port_to_power_domain(enum port port)
-{
- switch (port) {
- case PORT_A:
- return POWER_DOMAIN_PORT_DDI_LANES_A;
- case PORT_B:
- return POWER_DOMAIN_PORT_DDI_LANES_B;
- case PORT_C:
- return POWER_DOMAIN_PORT_DDI_LANES_C;
- case PORT_D:
- return POWER_DOMAIN_PORT_DDI_LANES_D;
- case PORT_E:
- return POWER_DOMAIN_PORT_DDI_LANES_E;
- case PORT_F:
- return POWER_DOMAIN_PORT_DDI_LANES_F;
- case PORT_G:
- return POWER_DOMAIN_PORT_DDI_LANES_G;
- case PORT_H:
- return POWER_DOMAIN_PORT_DDI_LANES_H;
- case PORT_I:
- return POWER_DOMAIN_PORT_DDI_LANES_I;
- default:
- MISSING_CASE(port);
- return POWER_DOMAIN_PORT_OTHER;
- }
-}
-
enum intel_display_power_domain
intel_aux_power_domain(struct intel_digital_port *dig_port)
{
- if (intel_tc_port_in_tbt_alt_mode(dig_port)) {
- switch (dig_port->aux_ch) {
- case AUX_CH_C:
- return POWER_DOMAIN_AUX_TBT_C;
- case AUX_CH_D:
- return POWER_DOMAIN_AUX_TBT_D;
- case AUX_CH_E:
- return POWER_DOMAIN_AUX_TBT_E;
- case AUX_CH_F:
- return POWER_DOMAIN_AUX_TBT_F;
- case AUX_CH_G:
- return POWER_DOMAIN_AUX_TBT_G;
- case AUX_CH_H:
- return POWER_DOMAIN_AUX_TBT_H;
- case AUX_CH_I:
- return POWER_DOMAIN_AUX_TBT_I;
- default:
- MISSING_CASE(dig_port->aux_ch);
- return POWER_DOMAIN_AUX_TBT_C;
- }
- }
+ struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
- return intel_legacy_aux_to_power_domain(dig_port->aux_ch);
-}
+ if (intel_tc_port_in_tbt_alt_mode(dig_port))
+ return intel_display_power_tbt_aux_domain(i915, dig_port->aux_ch);
-/*
- * 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 intel_display_power_legacy_aux_domain(i915, dig_port->aux_ch);
}
static void 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 867fa248f042..187910d94ec6 100644
--- a/drivers/gpu/drm/i915/display/intel_display.h
+++ b/drivers/gpu/drm/i915/display/intel_display.h
@@ -635,11 +635,9 @@ void intel_cpu_transcoder_get_m2_n2(struct intel_crtc *crtc,
void i9xx_crtc_clock_get(struct intel_crtc *crtc,
struct intel_crtc_state *pipe_config);
int intel_dotclock_calculate(int link_freq, const struct intel_link_m_n *m_n);
-enum intel_display_power_domain intel_port_to_power_domain(enum port port);
+enum intel_display_power_domain intel_port_to_power_domain(struct intel_digital_port *dig_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_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c
index 69f66da00705..b417ca4e5c58 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power.c
@@ -2256,3 +2256,209 @@ void intel_display_power_debug(struct drm_i915_private *i915, struct seq_file *m
mutex_unlock(&power_domains->lock);
}
+
+struct intel_ddi_port_domains {
+ enum port port_start;
+ enum port port_end;
+ enum aux_ch aux_ch_start;
+ enum aux_ch aux_ch_end;
+
+ enum intel_display_power_domain ddi_lanes;
+ enum intel_display_power_domain ddi_io;
+ enum intel_display_power_domain aux_legacy_usbc;
+ enum intel_display_power_domain aux_tbt;
+};
+
+static const struct intel_ddi_port_domains
+i9xx_port_domains[] = {
+ {
+ .port_start = PORT_A,
+ .port_end = PORT_F,
+ .aux_ch_start = AUX_CH_A,
+ .aux_ch_end = AUX_CH_F,
+
+ .ddi_lanes = POWER_DOMAIN_PORT_DDI_LANES_A,
+ .ddi_io = POWER_DOMAIN_PORT_DDI_IO_A,
+ .aux_legacy_usbc = POWER_DOMAIN_AUX_A,
+ .aux_tbt = POWER_DOMAIN_INVALID,
+ },
+};
+
+static const struct intel_ddi_port_domains
+d11_port_domains[] = {
+ {
+ .port_start = PORT_A,
+ .port_end = PORT_B,
+ .aux_ch_start = AUX_CH_A,
+ .aux_ch_end = AUX_CH_B,
+
+ .ddi_lanes = POWER_DOMAIN_PORT_DDI_LANES_A,
+ .ddi_io = POWER_DOMAIN_PORT_DDI_IO_A,
+ .aux_legacy_usbc = POWER_DOMAIN_AUX_A,
+ .aux_tbt = POWER_DOMAIN_INVALID,
+ }, {
+ .port_start = PORT_C,
+ .port_end = PORT_F,
+ .aux_ch_start = AUX_CH_C,
+ .aux_ch_end = AUX_CH_F,
+
+ .ddi_lanes = POWER_DOMAIN_PORT_DDI_LANES_C,
+ .ddi_io = POWER_DOMAIN_PORT_DDI_IO_C,
+ .aux_legacy_usbc = POWER_DOMAIN_AUX_C,
+ .aux_tbt = POWER_DOMAIN_AUX_TBT_C,
+ },
+};
+
+static const struct intel_ddi_port_domains
+d12_port_domains[] = {
+ {
+ .port_start = PORT_A,
+ .port_end = PORT_C,
+ .aux_ch_start = AUX_CH_A,
+ .aux_ch_end = AUX_CH_C,
+
+ .ddi_lanes = POWER_DOMAIN_PORT_DDI_LANES_A,
+ .ddi_io = POWER_DOMAIN_PORT_DDI_IO_A,
+ .aux_legacy_usbc = POWER_DOMAIN_AUX_A,
+ .aux_tbt = POWER_DOMAIN_INVALID,
+ }, {
+ .port_start = PORT_TC1,
+ .port_end = PORT_TC6,
+ .aux_ch_start = AUX_CH_USBC1,
+ .aux_ch_end = AUX_CH_USBC6,
+
+ .ddi_lanes = POWER_DOMAIN_PORT_DDI_LANES_TC1,
+ .ddi_io = POWER_DOMAIN_PORT_DDI_IO_TC1,
+ .aux_legacy_usbc = POWER_DOMAIN_AUX_USBC1,
+ .aux_tbt = POWER_DOMAIN_AUX_TBT1,
+ },
+};
+
+static const struct intel_ddi_port_domains
+d13_port_domains[] = {
+ {
+ .port_start = PORT_A,
+ .port_end = PORT_C,
+ .aux_ch_start = AUX_CH_A,
+ .aux_ch_end = AUX_CH_C,
+
+ .ddi_lanes = POWER_DOMAIN_PORT_DDI_LANES_A,
+ .ddi_io = POWER_DOMAIN_PORT_DDI_IO_A,
+ .aux_legacy_usbc = POWER_DOMAIN_AUX_A,
+ .aux_tbt = POWER_DOMAIN_INVALID,
+ }, {
+ .port_start = PORT_TC1,
+ .port_end = PORT_TC4,
+ .aux_ch_start = AUX_CH_USBC1,
+ .aux_ch_end = AUX_CH_USBC4,
+
+ .ddi_lanes = POWER_DOMAIN_PORT_DDI_LANES_TC1,
+ .ddi_io = POWER_DOMAIN_PORT_DDI_IO_TC1,
+ .aux_legacy_usbc = POWER_DOMAIN_AUX_USBC1,
+ .aux_tbt = POWER_DOMAIN_AUX_TBT1,
+ }, {
+ .port_start = PORT_D_XELPD,
+ .port_end = PORT_E_XELPD,
+ .aux_ch_start = AUX_CH_D_XELPD,
+ .aux_ch_end = AUX_CH_E_XELPD,
+
+ .ddi_lanes = POWER_DOMAIN_PORT_DDI_LANES_D_XELPD,
+ .ddi_io = POWER_DOMAIN_PORT_DDI_IO_D_XELPD,
+ .aux_legacy_usbc = POWER_DOMAIN_AUX_D_XELPD,
+ .aux_tbt = POWER_DOMAIN_INVALID,
+ },
+};
+
+static void
+intel_port_domains_for_platform(struct drm_i915_private *i915,
+ const struct intel_ddi_port_domains **domains,
+ int *domains_size)
+{
+ if (DISPLAY_VER(i915) >= 13) {
+ *domains = d13_port_domains;
+ *domains_size = ARRAY_SIZE(d13_port_domains);
+ } else if (DISPLAY_VER(i915) >= 12) {
+ *domains = d12_port_domains;
+ *domains_size = ARRAY_SIZE(d12_port_domains);
+ } else if (DISPLAY_VER(i915) >= 11) {
+ *domains = d11_port_domains;
+ *domains_size = ARRAY_SIZE(d11_port_domains);
+ } else {
+ *domains = i9xx_port_domains;
+ *domains_size = ARRAY_SIZE(i9xx_port_domains);
+ }
+}
+
+static const struct intel_ddi_port_domains *
+intel_port_domains_for_port(struct drm_i915_private *i915, enum port port)
+{
+ const struct intel_ddi_port_domains *domains;
+ int domains_size;
+ int i;
+
+ intel_port_domains_for_platform(i915, &domains, &domains_size);
+ for (i = 0; i < domains_size; i++)
+ if (port >= domains[i].port_start && port <= domains[i].port_end)
+ return &domains[i];
+
+ return NULL;
+}
+
+enum intel_display_power_domain
+intel_display_power_ddi_io_domain(struct drm_i915_private *i915, enum port port)
+{
+ const struct intel_ddi_port_domains *domains = intel_port_domains_for_port(i915, port);
+
+ if (drm_WARN_ON(&i915->drm, !domains) || domains->ddi_io == POWER_DOMAIN_INVALID)
+ return POWER_DOMAIN_PORT_DDI_IO_A;
+
+ return domains->ddi_io + port - domains->port_start;
+}
+
+enum intel_display_power_domain
+intel_display_power_ddi_lanes_domain(struct drm_i915_private *i915, enum port port)
+{
+ const struct intel_ddi_port_domains *domains = intel_port_domains_for_port(i915, port);
+
+ if (drm_WARN_ON(&i915->drm, !domains) || domains->ddi_lanes == POWER_DOMAIN_INVALID)
+ return POWER_DOMAIN_PORT_DDI_LANES_A;
+
+ return domains->ddi_lanes + port - domains->port_start;
+}
+
+static const struct intel_ddi_port_domains *
+intel_port_domains_for_aux_ch(struct drm_i915_private *i915, enum aux_ch aux_ch)
+{
+ const struct intel_ddi_port_domains *domains;
+ int domains_size;
+ int i;
+
+ intel_port_domains_for_platform(i915, &domains, &domains_size);
+ for (i = 0; i < domains_size; i++)
+ if (aux_ch >= domains[i].aux_ch_start && aux_ch <= domains[i].aux_ch_end)
+ return &domains[i];
+
+ return NULL;
+}
+
+enum intel_display_power_domain
+intel_display_power_legacy_aux_domain(struct drm_i915_private *i915, enum aux_ch aux_ch)
+{
+ const struct intel_ddi_port_domains *domains = intel_port_domains_for_aux_ch(i915, aux_ch);
+
+ if (drm_WARN_ON(&i915->drm, !domains) || domains->aux_legacy_usbc == POWER_DOMAIN_INVALID)
+ return POWER_DOMAIN_AUX_A;
+
+ return domains->aux_legacy_usbc + aux_ch - domains->aux_ch_start;
+}
+
+enum intel_display_power_domain
+intel_display_power_tbt_aux_domain(struct drm_i915_private *i915, enum aux_ch aux_ch)
+{
+ const struct intel_ddi_port_domains *domains = intel_port_domains_for_aux_ch(i915, aux_ch);
+
+ if (drm_WARN_ON(&i915->drm, !domains) || domains->aux_tbt == POWER_DOMAIN_INVALID)
+ return POWER_DOMAIN_AUX_TBT1;
+
+ return domains->aux_tbt + aux_ch - domains->aux_ch_start;
+}
diff --git a/drivers/gpu/drm/i915/display/intel_display_power.h b/drivers/gpu/drm/i915/display/intel_display_power.h
index 66fef12ef3db..2ea30a4cfaa8 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power.h
+++ b/drivers/gpu/drm/i915/display/intel_display_power.h
@@ -8,8 +8,10 @@
#include "intel_runtime_pm.h"
+enum aux_ch;
enum dpio_channel;
enum dpio_phy;
+enum port;
struct drm_i915_private;
struct i915_power_well;
struct intel_encoder;
@@ -130,6 +132,7 @@ enum intel_display_power_domain {
POWER_DOMAIN_INIT,
POWER_DOMAIN_NUM,
+ POWER_DOMAIN_INVALID = POWER_DOMAIN_NUM,
};
#define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A)
@@ -266,6 +269,15 @@ intel_display_power_put_all_in_set(struct drm_i915_private *i915,
void intel_display_power_debug(struct drm_i915_private *i915, struct seq_file *m);
+enum intel_display_power_domain
+intel_display_power_ddi_lanes_domain(struct drm_i915_private *i915, enum port port);
+enum intel_display_power_domain
+intel_display_power_ddi_io_domain(struct drm_i915_private *i915, enum port port);
+enum intel_display_power_domain
+intel_display_power_legacy_aux_domain(struct drm_i915_private *i915, enum aux_ch aux_ch);
+enum intel_display_power_domain
+intel_display_power_tbt_aux_domain(struct drm_i915_private *i915, enum aux_ch aux_ch);
+
/*
* FIXME: We should probably switch this to a 0-based scheme to be consistent
* with how we now name/number DBUF_CTL instances.
diff --git a/drivers/gpu/drm/i915/display/intel_tc.c b/drivers/gpu/drm/i915/display/intel_tc.c
index fc037c027ea5..b8b822ea3755 100644
--- a/drivers/gpu/drm/i915/display/intel_tc.c
+++ b/drivers/gpu/drm/i915/display/intel_tc.c
@@ -6,6 +6,7 @@
#include "i915_drv.h"
#include "i915_reg.h"
#include "intel_display.h"
+#include "intel_display_power_map.h"
#include "intel_display_types.h"
#include "intel_dp_mst.h"
#include "intel_tc.h"
@@ -61,10 +62,12 @@ bool intel_tc_cold_requires_aux_pw(struct intel_digital_port *dig_port)
static enum intel_display_power_domain
tc_cold_get_power_domain(struct intel_digital_port *dig_port, enum tc_port_mode mode)
{
+ struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
+
if (mode == TC_PORT_TBT_ALT || !intel_tc_cold_requires_aux_pw(dig_port))
return POWER_DOMAIN_TC_COLD_OFF;
- return intel_legacy_aux_to_power_domain(dig_port->aux_ch);
+ return intel_display_power_legacy_aux_domain(i915, dig_port->aux_ch);
}
static intel_wakeref_t
--
2.38.1