diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_tc.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_tc.c | 103 |
1 files changed, 51 insertions, 52 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_tc.c b/drivers/gpu/drm/i915/display/intel_tc.c index 37b0f8529b4f..9887967b2ca5 100644 --- a/drivers/gpu/drm/i915/display/intel_tc.c +++ b/drivers/gpu/drm/i915/display/intel_tc.c @@ -58,7 +58,7 @@ struct intel_tc_port { struct delayed_work link_reset_work; int link_refcount; bool legacy_port:1; - char port_name[8]; + const char *port_name; enum tc_port_mode mode; enum tc_port_mode init_mode; enum phy_fia phy_fia; @@ -100,11 +100,9 @@ static struct drm_i915_private *tc_to_i915(struct intel_tc_port *tc) static bool intel_tc_port_in_mode(struct intel_digital_port *dig_port, enum tc_port_mode mode) { - struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev); - enum phy phy = intel_port_to_phy(i915, dig_port->base.port); struct intel_tc_port *tc = to_tc_port(dig_port); - return intel_phy_is_tc(i915, phy) && tc->mode == mode; + return intel_encoder_is_tc(&dig_port->base) && tc->mode == mode; } bool intel_tc_port_in_tbt_alt_mode(struct intel_digital_port *dig_port) @@ -122,6 +120,13 @@ bool intel_tc_port_in_legacy_mode(struct intel_digital_port *dig_port) return intel_tc_port_in_mode(dig_port, TC_PORT_LEGACY); } +bool intel_tc_port_handles_hpd_glitches(struct intel_digital_port *dig_port) +{ + struct intel_tc_port *tc = to_tc_port(dig_port); + + return intel_encoder_is_tc(&dig_port->base) && !tc->legacy_port; +} + /* * The display power domains used for TC ports depending on the * platform and TC mode (legacy, DP-alt, TBT): @@ -245,8 +250,7 @@ assert_tc_cold_blocked(struct intel_tc_port *tc) static enum intel_display_power_domain tc_port_power_domain(struct intel_tc_port *tc) { - struct drm_i915_private *i915 = tc_to_i915(tc); - enum tc_port tc_port = intel_port_to_tc(i915, tc->dig_port->base.port); + enum tc_port tc_port = intel_encoder_to_tc(&tc->dig_port->base); return POWER_DOMAIN_PORT_DDI_LANES_TC1 + tc_port - TC_PORT_1; } @@ -293,7 +297,7 @@ u32 intel_tc_port_get_pin_assignment_mask(struct intel_digital_port *dig_port) static int lnl_tc_port_get_max_lane_count(struct intel_digital_port *dig_port) { struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev); - enum tc_port tc_port = intel_port_to_tc(i915, dig_port->base.port); + enum tc_port tc_port = intel_encoder_to_tc(&dig_port->base); intel_wakeref_t wakeref; u32 val, pin_assignment; @@ -366,9 +370,8 @@ int intel_tc_port_max_lane_count(struct intel_digital_port *dig_port) { struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev); struct intel_tc_port *tc = to_tc_port(dig_port); - enum phy phy = intel_port_to_phy(i915, dig_port->base.port); - if (!intel_phy_is_tc(i915, phy) || tc->mode != TC_PORT_DP_ALT) + if (!intel_encoder_is_tc(&dig_port->base) || tc->mode != TC_PORT_DP_ALT) return 4; assert_tc_cold_blocked(tc); @@ -449,9 +452,7 @@ static void tc_port_fixup_legacy_flag(struct intel_tc_port *tc, static void tc_phy_load_fia_params(struct intel_tc_port *tc, bool modular_fia) { - struct drm_i915_private *i915 = tc_to_i915(tc); - enum port port = tc->dig_port->base.port; - enum tc_port tc_port = intel_port_to_tc(i915, port); + enum tc_port tc_port = intel_encoder_to_tc(&tc->dig_port->base); /* * Each Modular FIA instance houses 2 TC ports. In SOC that has more @@ -803,7 +804,7 @@ static u32 adlp_tc_phy_hpd_live_status(struct intel_tc_port *tc) static bool adlp_tc_phy_is_ready(struct intel_tc_port *tc) { struct drm_i915_private *i915 = tc_to_i915(tc); - enum tc_port tc_port = intel_port_to_tc(i915, tc->dig_port->base.port); + enum tc_port tc_port = intel_encoder_to_tc(&tc->dig_port->base); u32 val; assert_display_core_power_enabled(tc); @@ -986,10 +987,11 @@ xelpdp_tc_phy_tcss_power_is_enabled(struct intel_tc_port *tc) { struct drm_i915_private *i915 = tc_to_i915(tc); enum port port = tc->dig_port->base.port; + i915_reg_t reg = XELPDP_PORT_BUF_CTL1(i915, port); assert_tc_cold_blocked(tc); - return intel_de_read(i915, XELPDP_PORT_BUF_CTL1(port)) & XELPDP_TCSS_POWER_STATE; + return intel_de_read(i915, reg) & XELPDP_TCSS_POWER_STATE; } static bool @@ -1012,16 +1014,17 @@ static void __xelpdp_tc_phy_enable_tcss_power(struct intel_tc_port *tc, bool ena { struct drm_i915_private *i915 = tc_to_i915(tc); enum port port = tc->dig_port->base.port; + i915_reg_t reg = XELPDP_PORT_BUF_CTL1(i915, port); u32 val; assert_tc_cold_blocked(tc); - val = intel_de_read(i915, XELPDP_PORT_BUF_CTL1(port)); + val = intel_de_read(i915, reg); if (enable) val |= XELPDP_TCSS_POWER_REQUEST; else val &= ~XELPDP_TCSS_POWER_REQUEST; - intel_de_write(i915, XELPDP_PORT_BUF_CTL1(port), val); + intel_de_write(i915, reg, val); } static bool xelpdp_tc_phy_enable_tcss_power(struct intel_tc_port *tc, bool enable) @@ -1030,44 +1033,53 @@ static bool xelpdp_tc_phy_enable_tcss_power(struct intel_tc_port *tc, bool enabl __xelpdp_tc_phy_enable_tcss_power(tc, enable); - if ((!tc_phy_wait_for_ready(tc) || - !xelpdp_tc_phy_wait_for_tcss_power(tc, enable)) && - !drm_WARN_ON(&i915->drm, tc->mode == TC_PORT_LEGACY)) { - if (enable) { - __xelpdp_tc_phy_enable_tcss_power(tc, false); - xelpdp_tc_phy_wait_for_tcss_power(tc, false); - } + if (enable && !tc_phy_wait_for_ready(tc)) + goto out_disable; - return false; - } + if (!xelpdp_tc_phy_wait_for_tcss_power(tc, enable)) + goto out_disable; return true; + +out_disable: + if (drm_WARN_ON(&i915->drm, tc->mode == TC_PORT_LEGACY)) + return false; + + if (!enable) + return false; + + __xelpdp_tc_phy_enable_tcss_power(tc, false); + xelpdp_tc_phy_wait_for_tcss_power(tc, false); + + return false; } static void xelpdp_tc_phy_take_ownership(struct intel_tc_port *tc, bool take) { struct drm_i915_private *i915 = tc_to_i915(tc); enum port port = tc->dig_port->base.port; + i915_reg_t reg = XELPDP_PORT_BUF_CTL1(i915, port); u32 val; assert_tc_cold_blocked(tc); - val = intel_de_read(i915, XELPDP_PORT_BUF_CTL1(port)); + val = intel_de_read(i915, reg); if (take) val |= XELPDP_TC_PHY_OWNERSHIP; else val &= ~XELPDP_TC_PHY_OWNERSHIP; - intel_de_write(i915, XELPDP_PORT_BUF_CTL1(port), val); + intel_de_write(i915, reg, val); } static bool xelpdp_tc_phy_is_owned(struct intel_tc_port *tc) { struct drm_i915_private *i915 = tc_to_i915(tc); enum port port = tc->dig_port->base.port; + i915_reg_t reg = XELPDP_PORT_BUF_CTL1(i915, port); assert_tc_cold_blocked(tc); - return intel_de_read(i915, XELPDP_PORT_BUF_CTL1(port)) & XELPDP_TC_PHY_OWNERSHIP; + return intel_de_read(i915, reg) & XELPDP_TC_PHY_OWNERSHIP; } static void xelpdp_tc_phy_get_hw_state(struct intel_tc_port *tc) @@ -1583,7 +1595,7 @@ void intel_tc_port_sanitize_mode(struct intel_digital_port *dig_port, * connected ports are usable, and avoids exposing to the users objects they * can't really use. */ -bool intel_tc_port_connected_locked(struct intel_encoder *encoder) +bool intel_tc_port_connected(struct intel_encoder *encoder) { struct intel_digital_port *dig_port = enc_to_dig_port(encoder); struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev); @@ -1598,19 +1610,6 @@ bool intel_tc_port_connected_locked(struct intel_encoder *encoder) return tc_phy_hpd_live_status(tc) & mask; } -bool intel_tc_port_connected(struct intel_encoder *encoder) -{ - struct intel_digital_port *dig_port = enc_to_dig_port(encoder); - struct intel_tc_port *tc = to_tc_port(dig_port); - bool is_connected; - - mutex_lock(&tc->lock); - is_connected = intel_tc_port_connected_locked(encoder); - mutex_unlock(&tc->lock); - - return is_connected; -} - static bool __intel_tc_port_link_needs_reset(struct intel_tc_port *tc) { bool ret; @@ -1628,10 +1627,7 @@ static bool __intel_tc_port_link_needs_reset(struct intel_tc_port *tc) bool intel_tc_port_link_needs_reset(struct intel_digital_port *dig_port) { - struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev); - enum phy phy = intel_port_to_phy(i915, dig_port->base.port); - - if (!intel_phy_is_tc(i915, phy)) + if (!intel_encoder_is_tc(&dig_port->base)) return false; return __intel_tc_port_link_needs_reset(to_tc_port(dig_port)); @@ -1733,11 +1729,9 @@ bool intel_tc_port_link_reset(struct intel_digital_port *dig_port) void intel_tc_port_link_cancel_reset_work(struct intel_digital_port *dig_port) { - struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev); - enum phy phy = intel_port_to_phy(i915, dig_port->base.port); struct intel_tc_port *tc = to_tc_port(dig_port); - if (!intel_phy_is_tc(i915, phy)) + if (!intel_encoder_is_tc(&dig_port->base)) return; cancel_delayed_work(&tc->link_reset_work); @@ -1854,7 +1848,7 @@ int intel_tc_port_init(struct intel_digital_port *dig_port, bool is_legacy) struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev); struct intel_tc_port *tc; enum port port = dig_port->base.port; - enum tc_port tc_port = intel_port_to_tc(i915, port); + enum tc_port tc_port = intel_encoder_to_tc(&dig_port->base); if (drm_WARN_ON(&i915->drm, tc_port == TC_PORT_NONE)) return -EINVAL; @@ -1875,8 +1869,12 @@ int intel_tc_port_init(struct intel_digital_port *dig_port, bool is_legacy) else tc->phy_ops = &icl_tc_phy_ops; - snprintf(tc->port_name, sizeof(tc->port_name), - "%c/TC#%d", port_name(port), tc_port + 1); + tc->port_name = kasprintf(GFP_KERNEL, "%c/TC#%d", port_name(port), + tc_port + 1); + if (!tc->port_name) { + kfree(tc); + return -ENOMEM; + } mutex_init(&tc->lock); /* TODO: Combine the two works */ @@ -1897,6 +1895,7 @@ void intel_tc_port_cleanup(struct intel_digital_port *dig_port) { intel_tc_port_suspend(dig_port); + kfree(dig_port->tc->port_name); kfree(dig_port->tc); dig_port->tc = NULL; } |