[PATCH 4/8] drm/i915/mtl: Add Support for C10 PHY message bus and pll programming
Mika Kahola
mika.kahola at intel.com
Wed Apr 5 14:20:19 UTC 2023
From: Radhakrishna Sripada <radhakrishna.sripada at intel.com>
XELPDP has C10 and C20 phys from Synopsys to drive displays. Each phy
has a dedicated PIPE 5.2 Message bus for configuration. This message
bus is used to configure the phy internal registers.
XELPDP has C10 phys to drive output to the EDP and the native output
from the display engine. Add structures, programming hardware state
readout logic. Port clock calculations are similar to DG2. Use the DG2
formulae to calculate the port clock but use the relevant pll signals.
Note: PHY lane 0 is always used for PLL programming.
Add sequences for C10 phy enable/disable phy lane reset,
powerdown change sequence and phy lane programming.
Bspec: 64539, 64568, 64599, 65100, 65101, 65450, 65451, 67610, 67636
v2: Squash patches related to C10 phy message bus and pll
programming support (Jani)
Move register definitions to a new file i.e. intel_cx0_reg_defs.h (Jani)
Move macro definitions (Jani)
DP rates as separate patch (Jani)
Spin out xelpdp register definitions into a separate file (Jani)
Replace macro to select registers based on phy lane with
function calls (Jani)
Fix styling issues (Jani)
Call XELPDP_PORT_P2M_MSGBUS_STATUS() with port instead of phy (Lucas)
v3: Move clear request flag into try-loop
v4: On PHY idle change drm_err_once() as drm_dbg_kms() (Jani)
use __intel_de_wait_for_register() instead of __intel_wait_for_register
and uncomment intel_uncore.h (Jani)
Add DP-alt support for PHY lane programming (Khaled)
v4: Add tx and cmn on c10mpllb_state (Imre)
Add missing waits for pending transactions between two message bus
writes (Imre)
General cleanups and simplifications (Imre)
Cc: Mika Kahola <mika.kahola at intel.com>
Cc: Imre Deak <imre.deak at intel.com>
Cc: Uma Shankar <uma.shankar at intel.com>
Cc: Gustavo Sousa <gustavo.sousa at intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada at intel.com>
Signed-off-by: Mika Kahola <mika.kahola at intel.com>
---
drivers/gpu/drm/i915/Makefile | 1 +
drivers/gpu/drm/i915/display/intel_cx0_phy.c | 1240 +++++++++++++++++
drivers/gpu/drm/i915/display/intel_cx0_phy.h | 44 +
.../gpu/drm/i915/display/intel_cx0_phy_regs.h | 33 +-
drivers/gpu/drm/i915/display/intel_ddi.c | 22 +-
.../drm/i915/display/intel_display_types.h | 8 +
drivers/gpu/drm/i915/display/intel_dpll.c | 20 +-
drivers/gpu/drm/i915/display/intel_dpll_mgr.c | 2 +-
.../drm/i915/display/intel_modeset_verify.c | 2 +
drivers/gpu/drm/i915/i915_reg.h | 5 +
drivers/gpu/drm/i915/i915_reg_defs.h | 57 +
11 files changed, 1430 insertions(+), 4 deletions(-)
create mode 100644 drivers/gpu/drm/i915/display/intel_cx0_phy.c
create mode 100644 drivers/gpu/drm/i915/display/intel_cx0_phy.h
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index b739300267c2..77a9fd66a2a9 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -298,6 +298,7 @@ i915-y += \
display/icl_dsi.o \
display/intel_backlight.o \
display/intel_crt.o \
+ display/intel_cx0_phy.o \
display/intel_ddi.o \
display/intel_ddi_buf_trans.o \
display/intel_display_trace.o \
diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy.c b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
new file mode 100644
index 000000000000..b1b359bdf3ae
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
@@ -0,0 +1,1240 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2021 Intel Corporation
+ */
+
+#include "i915_reg.h"
+#include "intel_cx0_phy.h"
+#include "intel_cx0_phy_regs.h"
+#include "intel_de.h"
+#include "intel_display_types.h"
+#include "intel_dp.h"
+#include "intel_panel.h"
+#include "intel_psr.h"
+#include "intel_tc.h"
+
+#define MB_WRITE_COMMITTED true
+#define MB_WRITE_UNCOMMITTED false
+
+#define XELPDP_LANE_POWERDOWN_UPDATE(lane) ((lane) & INTEL_CX0_LANE0 ? \
+ XELPDP_LANE0_POWERDOWN_UPDATE : \
+ XELPDP_LANE1_POWERDOWN_UPDATE)
+#define XELPDP_LANE_POWERDOWN_NEW_STATE(lane, state) ((lane) & INTEL_CX0_LANE0 ? \
+ XELPDP_LANE0_POWERDOWN_NEW_STATE(state) : \
+ XELPDP_LANE1_POWERDOWN_NEW_STATE(state))
+#define XELPDP_LANE_PCLK_REFCLK_REQUEST(lane) ((lane) & INTEL_CX0_LANE0 ? \
+ XELPDP_LANE0_PCLK_REFCLK_REQUEST : \
+ XELPDP_LANE1_PCLK_REFCLK_REQUEST)
+#define XELPDP_LANE_PCLK_REFCLK_ACK(lane) ((lane) & INTEL_CX0_LANE0 ? \
+ XELPDP_LANE0_PCLK_REFCLK_ACK : \
+ XELPDP_LANE1_PCLK_REFCLK_ACK)
+#define XELPDP_LANE_PCLK_PLL_REQUEST(lane) ((lane) & INTEL_CX0_LANE0 ? \
+ XELPDP_LANE0_PCLK_PLL_REQUEST : \
+ XELPDP_LANE1_PCLK_PLL_REQUEST)
+#define XELPDP_LANE_PCLK_PLL_ACK(lane) ((lane) & INTEL_CX0_LANE0 ? \
+ XELPDP_LANE0_PCLK_PLL_ACK : \
+ XELPDP_LANE1_PCLK_PLL_ACK)
+
+bool intel_is_c10phy(struct drm_i915_private *dev_priv, enum phy phy)
+{
+ if (IS_METEORLAKE(dev_priv) && (phy < PHY_C))
+ return true;
+
+ return false;
+}
+
+static int lane_mask_to_lane(u8 lane_mask)
+{
+ if (lane_mask & INTEL_CX0_LANE0)
+ return 0;
+ else if (lane_mask & INTEL_CX0_LANE1)
+ return 1;
+
+ return -EINVAL;
+}
+
+static void
+assert_dc_off(struct drm_i915_private *i915)
+{
+ bool enabled;
+
+ enabled = intel_display_power_is_enabled(i915, POWER_DOMAIN_DC_OFF);
+ drm_WARN_ON(&i915->drm, !enabled);
+}
+
+/*
+ * Prepare HW for CX0 phy transactions.
+ *
+ * It is required that PSR and DC5/6 are disabled before any CX0 message
+ * bus transaction is executed.
+ */
+static intel_wakeref_t intel_cx0_phy_transaction_begin(struct intel_encoder *encoder)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+ struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+
+ intel_psr_pause(intel_dp);
+ return intel_display_power_get(i915, POWER_DOMAIN_DC_OFF);
+}
+
+static void intel_cx0_phy_transaction_end(struct intel_encoder *encoder, intel_wakeref_t wakeref)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+ struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+
+ intel_psr_resume(intel_dp);
+ intel_display_power_put(i915, POWER_DOMAIN_DC_OFF, wakeref);
+}
+
+static void intel_clear_response_ready_flag(struct drm_i915_private *i915,
+ enum port port, int lane)
+{
+ intel_de_rmw(i915, XELPDP_PORT_P2M_MSGBUS_STATUS(port, lane),
+ XELPDP_PORT_P2M_RESPONSE_READY, 0);
+ intel_de_rmw(i915, XELPDP_PORT_P2M_MSGBUS_STATUS(port, lane),
+ XELPDP_PORT_P2M_ERROR_SET, 0);
+}
+
+static void intel_cx0_bus_reset(struct drm_i915_private *i915, enum port port, int lane)
+{
+ enum phy phy = intel_port_to_phy(i915, port);
+
+ /* Bring the phy to idle. */
+ intel_de_write(i915, XELPDP_PORT_M2P_MSGBUS_CTL(port, lane),
+ XELPDP_PORT_M2P_TRANSACTION_RESET);
+
+ /* Wait for Idle Clear. */
+ if (intel_de_wait_for_clear(i915, XELPDP_PORT_M2P_MSGBUS_CTL(port, lane),
+ XELPDP_PORT_M2P_TRANSACTION_RESET,
+ XELPDP_MSGBUS_TIMEOUT_SLOW)) {
+ drm_err_once(&i915->drm, "Failed to bring PHY %c to idle.\n", phy_name(phy));
+ return;
+ }
+
+ intel_clear_response_ready_flag(i915, port, lane);
+}
+
+static int intel_cx0_wait_for_ack(struct drm_i915_private *i915, enum port port,
+ int command, int lane, u32 *val)
+{
+ enum phy phy = intel_port_to_phy(i915, port);
+
+ if (__intel_de_wait_for_register(i915,
+ XELPDP_PORT_P2M_MSGBUS_STATUS(port, lane),
+ XELPDP_PORT_P2M_RESPONSE_READY,
+ XELPDP_PORT_P2M_RESPONSE_READY,
+ XELPDP_MSGBUS_TIMEOUT_FAST_US,
+ XELPDP_MSGBUS_TIMEOUT_SLOW, val)) {
+ drm_dbg_kms(&i915->drm, "PHY %c Timeout waiting for message ACK. Status: 0x%x\n", phy_name(phy), *val);
+ return -ETIMEDOUT;
+ }
+
+ /* Check for error. */
+ if (*val & XELPDP_PORT_P2M_ERROR_SET) {
+ drm_dbg_kms(&i915->drm, "PHY %c Error occurred during %s command. Status: 0x%x\n",
+ phy_name(phy), command == XELPDP_PORT_P2M_COMMAND_READ_ACK ? "read" : "write", *val);
+ intel_cx0_bus_reset(i915, port, lane);
+ return -EINVAL;
+ }
+
+ /* Check for Read/Write Ack. */
+ if (REG_FIELD_GET(XELPDP_PORT_P2M_COMMAND_TYPE_MASK, *val) != command) {
+ drm_dbg_kms(&i915->drm, "PHY %c Not a %s response. MSGBUS Status: 0x%x.\n",
+ phy_name(phy), command == XELPDP_PORT_P2M_COMMAND_READ_ACK ? "read" : "write", *val);
+ intel_cx0_bus_reset(i915, port, lane);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int __intel_cx0_read_once(struct drm_i915_private *i915, enum port port,
+ int lane, u16 addr)
+{
+ enum phy phy = intel_port_to_phy(i915, port);
+ int ack;
+ u32 val;
+
+ /* Wait for pending transactions.*/
+ if (intel_de_wait_for_clear(i915, XELPDP_PORT_M2P_MSGBUS_CTL(port, lane),
+ XELPDP_PORT_M2P_TRANSACTION_PENDING,
+ XELPDP_MSGBUS_TIMEOUT_SLOW)) {
+ drm_dbg_kms(&i915->drm, "PHY %c Timeout waiting for previous transaction to complete. Reset the bus and retry.\n", phy_name(phy));
+ intel_cx0_bus_reset(i915, port, lane);
+ return -ETIMEDOUT;
+ }
+
+ /* Issue the read command. */
+ intel_de_write(i915, XELPDP_PORT_M2P_MSGBUS_CTL(port, lane),
+ XELPDP_PORT_M2P_TRANSACTION_PENDING |
+ XELPDP_PORT_M2P_COMMAND_READ |
+ XELPDP_PORT_M2P_ADDRESS(addr));
+
+ /* Wait for response ready. And read response.*/
+ ack = intel_cx0_wait_for_ack(i915, port, XELPDP_PORT_P2M_COMMAND_READ_ACK, lane, &val);
+ if (ack < 0) {
+ intel_cx0_bus_reset(i915, port, lane);
+ return ack;
+ }
+
+ /* Clear Response Ready flag.*/
+ intel_clear_response_ready_flag(i915, port, lane);
+
+ return REG_FIELD_GET(XELPDP_PORT_P2M_DATA_MASK, val);
+}
+
+static u8 __intel_cx0_read(struct drm_i915_private *i915, enum port port,
+ int lane, u16 addr)
+{
+ enum phy phy = intel_port_to_phy(i915, port);
+ int i, status;
+
+ assert_dc_off(i915);
+
+ /* 3 tries is assumed to be enough to read successfully */
+ for (i = 0; i < 3; i++) {
+ status = __intel_cx0_read_once(i915, port, lane, addr);
+
+ if (status >= 0)
+ return status;
+ }
+
+ if (i == 3)
+ drm_err_once(&i915->drm, "PHY %c Read %04x failed after %d retries.\n", phy_name(phy), addr, i);
+
+ return 0;
+}
+
+static u8 intel_cx0_read(struct drm_i915_private *i915, enum port port,
+ u8 lane_mask, u16 addr)
+{
+ enum phy phy = intel_port_to_phy(i915, port);
+ int lane = lane_mask_to_lane(lane_mask);
+
+ if (lane < 0) {
+ drm_err_once(&i915->drm, "Incorrect lane for PHY %c\n", phy_name(phy));
+ return lane;
+ }
+
+ return __intel_cx0_read(i915, port, lane, addr);
+}
+
+static int __intel_cx0_write_once(struct drm_i915_private *i915, enum port port,
+ int lane, u16 addr, u8 data, bool committed)
+{
+ enum phy phy = intel_port_to_phy(i915, port);
+ u32 val;
+
+ /* Wait for pending transactions */
+ if (intel_de_wait_for_clear(i915, XELPDP_PORT_M2P_MSGBUS_CTL(port, lane),
+ XELPDP_PORT_M2P_TRANSACTION_PENDING,
+ XELPDP_MSGBUS_TIMEOUT_SLOW)) {
+ drm_dbg_kms(&i915->drm, "PHY %c Timeout waiting for previous transaction to complete. Resetting the bus.\n", phy_name(phy));
+ intel_cx0_bus_reset(i915, port, lane);
+ return -ETIMEDOUT;
+ }
+
+ /* Issue the write command. */
+ intel_de_write(i915, XELPDP_PORT_M2P_MSGBUS_CTL(port, lane),
+ XELPDP_PORT_M2P_TRANSACTION_PENDING |
+ (committed ? XELPDP_PORT_M2P_COMMAND_WRITE_COMMITTED :
+ XELPDP_PORT_M2P_COMMAND_WRITE_UNCOMMITTED) |
+ XELPDP_PORT_M2P_DATA(data) |
+ XELPDP_PORT_M2P_ADDRESS(addr));
+
+ /* Wait for pending transactions.*/
+ if (intel_de_wait_for_clear(i915, XELPDP_PORT_M2P_MSGBUS_CTL(port, lane),
+ XELPDP_PORT_M2P_TRANSACTION_PENDING,
+ XELPDP_MSGBUS_TIMEOUT_SLOW)) {
+ drm_dbg_kms(&i915->drm, "PHY %c Timeout waiting for previous transaction to complete. Resetting the bus.\n", phy_name(phy));
+ intel_cx0_bus_reset(i915, port, lane);
+ return -ETIMEDOUT;
+ }
+
+ /* Check for error. */
+ if (committed) {
+ if (intel_cx0_wait_for_ack(i915, port, XELPDP_PORT_P2M_COMMAND_WRITE_ACK, lane, &val) < 0) {
+ intel_cx0_bus_reset(i915, port, lane);
+ return -EINVAL;
+ }
+ } else if ((intel_de_read(i915, XELPDP_PORT_P2M_MSGBUS_STATUS(port, lane)) &
+ XELPDP_PORT_P2M_ERROR_SET)) {
+ drm_dbg_kms(&i915->drm, "PHY %c Error occurred during write command.\n", phy_name(phy));
+ intel_cx0_bus_reset(i915, port, lane);
+ return -EINVAL;
+ }
+
+ /* Clear Response Ready flag.*/
+ intel_clear_response_ready_flag(i915, port, lane);
+
+ return 0;
+}
+
+static void __intel_cx0_write(struct drm_i915_private *i915, enum port port,
+ int lane, u16 addr, u8 data, bool committed)
+{
+ enum phy phy = intel_port_to_phy(i915, port);
+ int i, status;
+
+ assert_dc_off(i915);
+
+ /* 3 tries is assumed to be enough to write successfully */
+ for (i = 0; i < 3; i++) {
+ status = __intel_cx0_write_once(i915, port, lane, addr, data, committed);
+
+ if (status == 0)
+ return;
+ }
+
+ if (i == 3)
+ drm_err_once(&i915->drm, "PHY %c Write %04x failed after %d retries.\n", phy_name(phy), addr, i);
+}
+
+static void intel_cx0_write(struct drm_i915_private *i915, enum port port,
+ u8 lane_mask, u16 addr, u8 data, bool committed)
+{
+ int lane;
+
+ for_each_cx0_lane_in_mask(lane_mask, lane)
+ __intel_cx0_write(i915, port, lane, addr, data, committed);
+}
+
+static void __intel_cx0_rmw(struct drm_i915_private *i915, enum port port,
+ int lane, u16 addr, u8 clear, u8 set, bool committed)
+{
+ u8 old, val;
+
+ old = __intel_cx0_read(i915, port, lane, addr);
+ val = (old & ~clear) | set;
+
+ if (val != old)
+ __intel_cx0_write(i915, port, lane, addr, val, committed);
+}
+
+static void intel_cx0_rmw(struct drm_i915_private *i915, enum port port,
+ u8 lane_mask, u16 addr, u8 clear, u8 set, bool committed)
+{
+ u8 lane;
+
+ for_each_cx0_lane_in_mask(lane_mask, lane)
+ __intel_cx0_rmw(i915, port, lane, addr, clear, set, committed);
+}
+
+/*
+ * Basic DP link rates with 38.4 MHz reference clock.
+ * Note: The tables below are with SSC. In non-ssc
+ * registers 0xC04 to 0xC08(pll[4] to pll[8]) will be
+ * programmed 0.
+ */
+
+static const struct intel_c10mpllb_state mtl_c10_dp_rbr = {
+ .clock = 162000,
+ .tx = 0x10,
+ .cmn = 0x21,
+ .pll[0] = 0xB4,
+ .pll[1] = 0,
+ .pll[2] = 0x30,
+ .pll[3] = 0x1,
+ .pll[4] = 0x26,
+ .pll[5] = 0x0C,
+ .pll[6] = 0x98,
+ .pll[7] = 0x46,
+ .pll[8] = 0x1,
+ .pll[9] = 0x1,
+ .pll[10] = 0,
+ .pll[11] = 0,
+ .pll[12] = 0xC0,
+ .pll[13] = 0,
+ .pll[14] = 0,
+ .pll[15] = 0x2,
+ .pll[16] = 0x84,
+ .pll[17] = 0x4F,
+ .pll[18] = 0xE5,
+ .pll[19] = 0x23,
+};
+
+static const struct intel_c10mpllb_state mtl_c10_edp_r216 = {
+ .clock = 216000,
+ .tx = 0x10,
+ .cmn = 0x21,
+ .pll[0] = 0x4,
+ .pll[1] = 0,
+ .pll[2] = 0xA2,
+ .pll[3] = 0x1,
+ .pll[4] = 0x33,
+ .pll[5] = 0x10,
+ .pll[6] = 0x75,
+ .pll[7] = 0xB3,
+ .pll[8] = 0x1,
+ .pll[9] = 0x1,
+ .pll[10] = 0,
+ .pll[11] = 0,
+ .pll[12] = 0,
+ .pll[13] = 0,
+ .pll[14] = 0,
+ .pll[15] = 0x2,
+ .pll[16] = 0x85,
+ .pll[17] = 0x0F,
+ .pll[18] = 0xE6,
+ .pll[19] = 0x23,
+};
+
+static const struct intel_c10mpllb_state mtl_c10_edp_r243 = {
+ .clock = 243000,
+ .tx = 0x10,
+ .cmn = 0x21,
+ .pll[0] = 0x34,
+ .pll[1] = 0,
+ .pll[2] = 0xDA,
+ .pll[3] = 0x1,
+ .pll[4] = 0x39,
+ .pll[5] = 0x12,
+ .pll[6] = 0xE3,
+ .pll[7] = 0xE9,
+ .pll[8] = 0x1,
+ .pll[9] = 0x1,
+ .pll[10] = 0,
+ .pll[11] = 0,
+ .pll[12] = 0x20,
+ .pll[13] = 0,
+ .pll[14] = 0,
+ .pll[15] = 0x2,
+ .pll[16] = 0x85,
+ .pll[17] = 0x8F,
+ .pll[18] = 0xE6,
+ .pll[19] = 0x23,
+};
+
+static const struct intel_c10mpllb_state mtl_c10_dp_hbr1 = {
+ .clock = 270000,
+ .tx = 0x10,
+ .cmn = 0x21,
+ .pll[0] = 0xF4,
+ .pll[1] = 0,
+ .pll[2] = 0xF8,
+ .pll[3] = 0x0,
+ .pll[4] = 0x20,
+ .pll[5] = 0x0A,
+ .pll[6] = 0x29,
+ .pll[7] = 0x10,
+ .pll[8] = 0x1, /* Verify */
+ .pll[9] = 0x1,
+ .pll[10] = 0,
+ .pll[11] = 0,
+ .pll[12] = 0xA0,
+ .pll[13] = 0,
+ .pll[14] = 0,
+ .pll[15] = 0x1,
+ .pll[16] = 0x84,
+ .pll[17] = 0x4F,
+ .pll[18] = 0xE5,
+ .pll[19] = 0x23,
+};
+
+static const struct intel_c10mpllb_state mtl_c10_edp_r324 = {
+ .clock = 324000,
+ .tx = 0x10,
+ .cmn = 0x21,
+ .pll[0] = 0xB4,
+ .pll[1] = 0,
+ .pll[2] = 0x30,
+ .pll[3] = 0x1,
+ .pll[4] = 0x26,
+ .pll[5] = 0x0C,
+ .pll[6] = 0x98,
+ .pll[7] = 0x46,
+ .pll[8] = 0x1,
+ .pll[9] = 0x1,
+ .pll[10] = 0,
+ .pll[11] = 0,
+ .pll[12] = 0xC0,
+ .pll[13] = 0,
+ .pll[14] = 0,
+ .pll[15] = 0x1,
+ .pll[16] = 0x85,
+ .pll[17] = 0x4F,
+ .pll[18] = 0xE6,
+ .pll[19] = 0x23,
+};
+
+static const struct intel_c10mpllb_state mtl_c10_edp_r432 = {
+ .clock = 432000,
+ .tx = 0x10,
+ .cmn = 0x21,
+ .pll[0] = 0x4,
+ .pll[1] = 0,
+ .pll[2] = 0xA2,
+ .pll[3] = 0x1,
+ .pll[4] = 0x33,
+ .pll[5] = 0x10,
+ .pll[6] = 0x75,
+ .pll[7] = 0xB3,
+ .pll[8] = 0x1,
+ .pll[9] = 0x1,
+ .pll[10] = 0,
+ .pll[11] = 0,
+ .pll[12] = 0,
+ .pll[13] = 0,
+ .pll[14] = 0,
+ .pll[15] = 0x1,
+ .pll[16] = 0x85,
+ .pll[17] = 0x0F,
+ .pll[18] = 0xE6,
+ .pll[19] = 0x23,
+};
+
+static const struct intel_c10mpllb_state mtl_c10_dp_hbr2 = {
+ .clock = 540000,
+ .tx = 0x10,
+ .cmn = 0x21,
+ .pll[0] = 0xF4,
+ .pll[1] = 0,
+ .pll[2] = 0xF8,
+ .pll[3] = 0,
+ .pll[4] = 0x20,
+ .pll[5] = 0x0A,
+ .pll[6] = 0x29,
+ .pll[7] = 0x10,
+ .pll[8] = 0x1,
+ .pll[9] = 0x1,
+ .pll[10] = 0,
+ .pll[11] = 0,
+ .pll[12] = 0xA0,
+ .pll[13] = 0,
+ .pll[14] = 0,
+ .pll[15] = 0,
+ .pll[16] = 0x84,
+ .pll[17] = 0x4F,
+ .pll[18] = 0xE5,
+ .pll[19] = 0x23,
+};
+
+static const struct intel_c10mpllb_state mtl_c10_edp_r675 = {
+ .clock = 675000,
+ .tx = 0x10,
+ .cmn = 0x21,
+ .pll[0] = 0xB4,
+ .pll[1] = 0,
+ .pll[2] = 0x3E,
+ .pll[3] = 0x1,
+ .pll[4] = 0xA8,
+ .pll[5] = 0x0C,
+ .pll[6] = 0x33,
+ .pll[7] = 0x54,
+ .pll[8] = 0x1,
+ .pll[9] = 0x1,
+ .pll[10] = 0,
+ .pll[11] = 0,
+ .pll[12] = 0xC8,
+ .pll[13] = 0,
+ .pll[14] = 0,
+ .pll[15] = 0,
+ .pll[16] = 0x85,
+ .pll[17] = 0x8F,
+ .pll[18] = 0xE6,
+ .pll[19] = 0x23,
+};
+
+static const struct intel_c10mpllb_state mtl_c10_dp_hbr3 = {
+ .clock = 810000,
+ .tx = 0x10,
+ .cmn = 0x21,
+ .pll[0] = 0x34,
+ .pll[1] = 0,
+ .pll[2] = 0x84,
+ .pll[3] = 0x1,
+ .pll[4] = 0x30,
+ .pll[5] = 0x0F,
+ .pll[6] = 0x3D,
+ .pll[7] = 0x98,
+ .pll[8] = 0x1,
+ .pll[9] = 0x1,
+ .pll[10] = 0,
+ .pll[11] = 0,
+ .pll[12] = 0xF0,
+ .pll[13] = 0,
+ .pll[14] = 0,
+ .pll[15] = 0,
+ .pll[16] = 0x84,
+ .pll[17] = 0x0F,
+ .pll[18] = 0xE5,
+ .pll[19] = 0x23,
+};
+
+static const struct intel_c10mpllb_state * const mtl_c10_dp_tables[] = {
+ &mtl_c10_dp_rbr,
+ &mtl_c10_dp_hbr1,
+ &mtl_c10_dp_hbr2,
+ &mtl_c10_dp_hbr3,
+ NULL,
+};
+
+static const struct intel_c10mpllb_state * const mtl_c10_edp_tables[] = {
+ &mtl_c10_dp_rbr,
+ &mtl_c10_edp_r216,
+ &mtl_c10_edp_r243,
+ &mtl_c10_dp_hbr1,
+ &mtl_c10_edp_r324,
+ &mtl_c10_edp_r432,
+ &mtl_c10_dp_hbr2,
+ &mtl_c10_edp_r675,
+ &mtl_c10_dp_hbr3,
+ NULL,
+};
+
+static const struct intel_c10mpllb_state * const *
+intel_c10_mpllb_tables_get(struct intel_crtc_state *crtc_state,
+ struct intel_encoder *encoder)
+{
+ if (intel_crtc_has_dp_encoder(crtc_state)) {
+ if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP))
+ return mtl_c10_edp_tables;
+ else
+ return mtl_c10_dp_tables;
+ }
+
+ /* TODO: Add HDMI Support */
+ MISSING_CASE(encoder->type);
+ return NULL;
+}
+
+static void intel_c10mpllb_update_pll(struct intel_crtc_state *crtc_state,
+ struct intel_encoder *encoder,
+ struct intel_c10mpllb_state *pll_state)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+ struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+ bool use_ssc = false;
+ int i;
+
+ if (intel_crtc_has_dp_encoder(crtc_state)) {
+ intel_dp = enc_to_intel_dp(encoder);
+ use_ssc = (intel_dp->dpcd[DP_MAX_DOWNSPREAD] &
+ DP_MAX_DOWNSPREAD_0_5);
+
+ if (!intel_panel_use_ssc(i915))
+ use_ssc = false;
+ }
+
+ /* If not using ssc pll[4] through pll[8] must be 0*/
+ for (i = 0; i < ARRAY_SIZE(pll_state->pll); i++) {
+ if (!use_ssc && (i > 3 && i < 9))
+ pll_state->pll[i] = 0;
+ }
+}
+
+static int intel_c10mpllb_calc_state(struct intel_crtc_state *crtc_state,
+ struct intel_encoder *encoder)
+{
+ const struct intel_c10mpllb_state * const *tables;
+ struct intel_c10mpllb_state *pll_state;
+ int i;
+
+ tables = intel_c10_mpllb_tables_get(crtc_state, encoder);
+ if (!tables)
+ return -EINVAL;
+
+ for (i = 0; tables[i]; i++) {
+ if (crtc_state->port_clock == tables[i]->clock) {
+ crtc_state->c10mpllb_state = *tables[i];
+ pll_state = &crtc_state->c10mpllb_state;
+ intel_c10mpllb_update_pll(crtc_state, encoder,
+ pll_state);
+ return 0;
+ }
+ }
+
+ return -EINVAL;
+}
+
+int intel_cx0mpllb_calc_state(struct intel_crtc_state *crtc_state,
+ struct intel_encoder *encoder)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+ enum phy phy = intel_port_to_phy(i915, encoder->port);
+
+ drm_WARN_ON(&i915->drm, !intel_is_c10phy(i915, phy));
+
+ return intel_c10mpllb_calc_state(crtc_state, encoder);
+}
+
+void intel_c10mpllb_readout_hw_state(struct intel_encoder *encoder,
+ struct intel_c10mpllb_state *pll_state)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+ struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
+ bool lane_reversal = dig_port->saved_port_bits & DDI_BUF_PORT_REVERSAL;
+ u8 lane = lane_reversal ? INTEL_CX0_LANE1 :
+ INTEL_CX0_LANE0;
+ enum phy phy = intel_port_to_phy(i915, encoder->port);
+ intel_wakeref_t wakeref;
+ int i;
+
+ wakeref = intel_cx0_phy_transaction_begin(encoder);
+
+ /*
+ * According to C10 VDR Register programming Sequence we need
+ * to do this to read PHY internal registers from MsgBus.
+ */
+ intel_cx0_rmw(i915, encoder->port, lane, PHY_C10_VDR_CONTROL(1), 0,
+ C10_VDR_CTRL_MSGBUS_ACCESS, MB_WRITE_COMMITTED);
+
+ for (i = 0; i < ARRAY_SIZE(pll_state->pll); i++)
+ pll_state->pll[i] = intel_cx0_read(i915, encoder->port, lane,
+ PHY_C10_VDR_PLL(i));
+
+ pll_state->cmn = intel_cx0_read(i915, encoder->port, lane, PHY_C10_VDR_CMN(0));
+ pll_state->tx = intel_cx0_read(i915, encoder->port, lane, PHY_C10_VDR_TX(0));
+
+ if (pll_state->tx != C10_TX0_TX_MPLLB_SEL ||
+ pll_state->cmn != (C10_CMN0_REF_RANGE | C10_CMN0_REF_CLK_MPLLB_DIV))
+ drm_dbg_kms(&i915->drm, "Unexpected tx: %x or cmn: %x for phy: %c.\n",
+ pll_state->tx, pll_state->cmn, phy_name(phy));
+
+ intel_cx0_rmw(i915, encoder->port, lane, PHY_C10_VDR_CONTROL(1),
+ C10_VDR_CTRL_MSGBUS_ACCESS, 0, MB_WRITE_COMMITTED);
+
+ intel_cx0_phy_transaction_end(encoder, wakeref);
+}
+
+static void intel_c10_pll_program(struct drm_i915_private *i915,
+ const struct intel_crtc_state *crtc_state,
+ struct intel_encoder *encoder)
+{
+ const struct intel_c10mpllb_state *pll_state = &crtc_state->c10mpllb_state;
+ struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
+ bool lane_reversal = dig_port->saved_port_bits & DDI_BUF_PORT_REVERSAL;
+ u8 follower_lane = lane_reversal ? INTEL_CX0_LANE0 :
+ INTEL_CX0_LANE1;
+
+ int i;
+
+ intel_cx0_write(i915, encoder->port, INTEL_CX0_BOTH_LANES, PHY_C10_VDR_CONTROL(1),
+ C10_VDR_CTRL_MSGBUS_ACCESS, MB_WRITE_COMMITTED);
+ /* Custom width needs to be programmed to 0 for both the phy lanes */
+ intel_cx0_rmw(i915, encoder->port, INTEL_CX0_BOTH_LANES,
+ PHY_C10_VDR_CUSTOM_WIDTH, C10_VDR_CUSTOM_WIDTH, 0, MB_WRITE_COMMITTED);
+ intel_cx0_rmw(i915, encoder->port, follower_lane, PHY_C10_VDR_CONTROL(1),
+ C10_VDR_CTRL_MASTER_LANE, C10_VDR_CTRL_UPDATE_CFG,
+ MB_WRITE_COMMITTED);
+
+ /* Program the pll values only for the master lane */
+ for (i = 0; i < ARRAY_SIZE(pll_state->pll); i++)
+ intel_cx0_write(i915, encoder->port, INTEL_CX0_LANE0, PHY_C10_VDR_PLL(i),
+ pll_state->pll[i],
+ (i % 4) ? MB_WRITE_UNCOMMITTED : MB_WRITE_COMMITTED);
+
+ intel_cx0_write(i915, encoder->port, INTEL_CX0_LANE0, PHY_C10_VDR_CMN(0), pll_state->cmn, MB_WRITE_COMMITTED);
+ intel_cx0_write(i915, encoder->port, INTEL_CX0_LANE0, PHY_C10_VDR_TX(0), pll_state->tx, MB_WRITE_COMMITTED);
+ intel_cx0_rmw(i915, encoder->port, INTEL_CX0_LANE0, PHY_C10_VDR_CONTROL(1),
+ C10_VDR_CTRL_MSGBUS_ACCESS, C10_VDR_CTRL_MASTER_LANE |
+ C10_VDR_CTRL_UPDATE_CFG, MB_WRITE_COMMITTED);
+}
+
+void intel_c10mpllb_dump_hw_state(struct drm_i915_private *dev_priv,
+ const struct intel_c10mpllb_state *hw_state)
+{
+ bool fracen;
+ int i;
+ unsigned int frac_quot = 0, frac_rem = 0, frac_den = 1;
+ unsigned int multiplier, tx_clk_div;
+
+ fracen = hw_state->pll[0] & C10_PLL0_FRACEN;
+ drm_dbg_kms(&dev_priv->drm, "c10pll_hw_state: fracen: %s, ",
+ str_yes_no(fracen));
+
+ if (fracen) {
+ frac_quot = hw_state->pll[12] << 8 | hw_state->pll[11];
+ frac_rem = hw_state->pll[14] << 8 | hw_state->pll[13];
+ frac_den = hw_state->pll[10] << 8 | hw_state->pll[9];
+ drm_dbg_kms(&dev_priv->drm, "quot: %u, rem: %u, den: %u,\n",
+ frac_quot, frac_rem, frac_den);
+ }
+
+ multiplier = (REG_FIELD_GET8(C10_PLL3_MULTIPLIERH_MASK, hw_state->pll[3]) << 8 |
+ hw_state->pll[2]) / 2 + 16;
+ tx_clk_div = REG_FIELD_GET8(C10_PLL15_TXCLKDIV_MASK, hw_state->pll[15]);
+ drm_dbg_kms(&dev_priv->drm,
+ "multiplier: %u, tx_clk_div: %u.\n", multiplier, tx_clk_div);
+
+ drm_dbg_kms(&dev_priv->drm, "c10pll_rawhw_state:");
+ drm_dbg_kms(&dev_priv->drm, "tx: 0x%x, cmn: 0x%x\n", hw_state->tx, hw_state->cmn);
+
+ for (i = 0; i < ARRAY_SIZE(hw_state->pll); i = i + 4)
+ drm_dbg_kms(&dev_priv->drm, "pll[%d] = 0x%x, pll[%d] = 0x%x, pll[%d] = 0x%x, pll[%d] = 0x%x\n",
+ i, hw_state->pll[i], i + 1, hw_state->pll[i + 1],
+ i + 2, hw_state->pll[i + 2], i + 3, hw_state->pll[i + 3]);
+}
+
+int intel_c10mpllb_calc_port_clock(struct intel_encoder *encoder,
+ const struct intel_c10mpllb_state *pll_state)
+{
+ unsigned int frac_quot = 0, frac_rem = 0, frac_den = 1;
+ unsigned int multiplier, tx_clk_div, refclk = 38400;
+
+ if (pll_state->pll[0] & C10_PLL0_FRACEN) {
+ frac_quot = pll_state->pll[12] << 8 | pll_state->pll[11];
+ frac_rem = pll_state->pll[14] << 8 | pll_state->pll[13];
+ frac_den = pll_state->pll[10] << 8 | pll_state->pll[9];
+ }
+
+ multiplier = (REG_FIELD_GET8(C10_PLL3_MULTIPLIERH_MASK, pll_state->pll[3]) << 8 |
+ pll_state->pll[2]) / 2 + 16;
+
+ tx_clk_div = REG_FIELD_GET8(C10_PLL15_TXCLKDIV_MASK, pll_state->pll[15]);
+
+ return DIV_ROUND_CLOSEST_ULL(mul_u32_u32(refclk, (multiplier << 16) + frac_quot) +
+ DIV_ROUND_CLOSEST(refclk * frac_rem, frac_den),
+ 10 << (tx_clk_div + 16));
+}
+
+static void intel_program_port_clock_ctl(struct intel_encoder *encoder,
+ const struct intel_crtc_state *crtc_state,
+ bool lane_reversal)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+ struct intel_dp *intel_dp;
+ bool ssc_enabled;
+ u32 val = 0;
+
+ intel_de_rmw(i915, XELPDP_PORT_BUF_CTL1(encoder->port), XELPDP_PORT_REVERSAL,
+ lane_reversal ? XELPDP_PORT_REVERSAL : 0);
+
+ if (lane_reversal)
+ val |= XELPDP_LANE1_PHY_CLOCK_SELECT;
+
+ val |= XELPDP_FORWARD_CLOCK_UNGATE;
+ val |= XELPDP_DDI_CLOCK_SELECT(XELPDP_DDI_CLOCK_SELECT_MAXPCLK);
+
+ /* TODO: HDMI FRL */
+ if (intel_crtc_has_dp_encoder(crtc_state)) {
+ intel_dp = enc_to_intel_dp(encoder);
+ ssc_enabled = intel_dp->dpcd[DP_MAX_DOWNSPREAD] &
+ DP_MAX_DOWNSPREAD_0_5;
+
+ if (!intel_panel_use_ssc(i915))
+ ssc_enabled = false;
+
+ /* TODO: DP2.0 10G and 20G rates enable MPLLA*/
+ val |= ssc_enabled ? XELPDP_SSC_ENABLE_PLLB : 0;
+ }
+ intel_de_rmw(i915, XELPDP_PORT_CLOCK_CTL(encoder->port),
+ XELPDP_LANE1_PHY_CLOCK_SELECT |
+ XELPDP_FORWARD_CLOCK_UNGATE |
+ XELPDP_DDI_CLOCK_SELECT_MASK |
+ XELPDP_SSC_ENABLE_PLLB, val);
+}
+
+static u32 intel_cx0_get_powerdown_update(u8 lane_mask)
+{
+ int val = 0;
+ int lane = 0;
+
+ for_each_cx0_lane_in_mask(lane, lane_mask)
+ val |= XELPDP_LANE_POWERDOWN_UPDATE(lane);
+
+ return val;
+}
+
+static u32 intel_cx0_get_powerdown_state(u8 lane_mask, u8 state)
+{
+ int val = 0;
+ int lane = 0;
+
+ for_each_cx0_lane_in_mask(lane, lane_mask)
+ val |= XELPDP_LANE_POWERDOWN_NEW_STATE(lane, state);
+
+ return val;
+}
+
+static void intel_cx0_powerdown_change_sequence(struct drm_i915_private *i915,
+ enum port port,
+ u8 lane_mask, u8 state)
+{
+ enum phy phy = intel_port_to_phy(i915, port);
+
+ intel_de_rmw(i915, XELPDP_PORT_BUF_CTL2(port),
+ XELPDP_LANE0_POWERDOWN_NEW_STATE_MASK | XELPDP_LANE1_POWERDOWN_NEW_STATE_MASK,
+ intel_cx0_get_powerdown_state(lane_mask, state));
+
+ /* Wait for pending transactions.*/
+ if (intel_de_wait_for_clear(i915, XELPDP_PORT_M2P_MSGBUS_CTL(port, lane_mask_to_lane(lane_mask)),
+ XELPDP_PORT_M2P_TRANSACTION_PENDING,
+ XELPDP_MSGBUS_TIMEOUT_SLOW)) {
+ drm_dbg_kms(&i915->drm, "PHY %c Timeout waiting for previous transaction to complete. Reset the bus.\n", phy_name(phy));
+ intel_cx0_bus_reset(i915, port, lane_mask_to_lane(lane_mask));
+ }
+
+ intel_de_rmw(i915, XELPDP_PORT_BUF_CTL2(port),
+ XELPDP_LANE0_POWERDOWN_UPDATE | XELPDP_LANE1_POWERDOWN_UPDATE,
+ intel_cx0_get_powerdown_update(lane_mask));
+
+ /* Update Timeout Value */
+ if (__intel_de_wait_for_register(i915, XELPDP_PORT_BUF_CTL2(port),
+ intel_cx0_get_powerdown_update(lane_mask), 0,
+ XELPDP_PORT_POWERDOWN_UPDATE_TIMEOUT_US, 0, NULL))
+ drm_warn(&i915->drm, "PHY %c failed to bring out of Lane reset after %dus.\n",
+ phy_name(phy), XELPDP_PORT_RESET_START_TIMEOUT_US);
+}
+
+static void intel_cx0_setup_powerdown(struct drm_i915_private *i915, enum port port)
+{
+ intel_de_rmw(i915, XELPDP_PORT_BUF_CTL2(port),
+ XELPDP_POWER_STATE_READY_MASK,
+ XELPDP_POWER_STATE_READY(CX0_P2_STATE_READY));
+ intel_de_rmw(i915, XELPDP_PORT_BUF_CTL3(port),
+ XELPDP_POWER_STATE_ACTIVE_MASK |
+ XELPDP_PLL_LANE_STAGGERING_DELAY_MASK,
+ XELPDP_POWER_STATE_ACTIVE(CX0_P0_STATE_ACTIVE) |
+ XELPDP_PLL_LANE_STAGGERING_DELAY(0));
+}
+
+static u32 intel_cx0_get_pclk_refclk_request(u8 lane_mask)
+{
+ int val = 0;
+ int lane = 0;
+
+ for_each_cx0_lane_in_mask(lane, lane_mask)
+ val |= XELPDP_LANE_PCLK_REFCLK_REQUEST(lane);
+
+ return val;
+}
+
+static u32 intel_cx0_get_pclk_refclk_ack(u8 lane_mask)
+{
+ int val = 0;
+ int lane = 0;
+
+ for_each_cx0_lane_in_mask(lane, lane_mask)
+ val |= XELPDP_LANE_PCLK_REFCLK_ACK(lane);
+
+ return val;
+}
+
+/* FIXME: Some Type-C cases need not reset both the lanes. Handle those cases. */
+static void intel_cx0_phy_lane_reset(struct drm_i915_private *i915, enum port port,
+ bool lane_reversal)
+{
+ enum phy phy = intel_port_to_phy(i915, port);
+ u8 lane_mask = lane_reversal ? INTEL_CX0_LANE1 :
+ INTEL_CX0_LANE0;
+
+ if (__intel_de_wait_for_register(i915, XELPDP_PORT_BUF_CTL1(port),
+ XELPDP_PORT_BUF_SOC_PHY_READY,
+ XELPDP_PORT_BUF_SOC_PHY_READY,
+ XELPDP_PORT_BUF_SOC_READY_TIMEOUT_US, 0, NULL))
+ drm_warn(&i915->drm, "PHY %c failed to bring out of SOC reset after %dus.\n",
+ phy_name(phy), XELPDP_PORT_BUF_SOC_READY_TIMEOUT_US);
+
+ intel_de_rmw(i915, XELPDP_PORT_BUF_CTL2(port),
+ XELPDP_LANE0_PIPE_RESET | XELPDP_LANE1_PIPE_RESET,
+ XELPDP_LANE0_PIPE_RESET | XELPDP_LANE1_PIPE_RESET);
+
+ if (__intel_de_wait_for_register(i915, XELPDP_PORT_BUF_CTL2(port),
+ XELPDP_LANE0_PHY_CURRENT_STATUS | XELPDP_LANE1_PHY_CURRENT_STATUS,
+ XELPDP_LANE0_PHY_CURRENT_STATUS | XELPDP_LANE1_PHY_CURRENT_STATUS,
+ XELPDP_PORT_RESET_START_TIMEOUT_US, 0, NULL))
+ drm_warn(&i915->drm, "PHY %c failed to bring out of Lane reset after %dus.\n",
+ phy_name(phy), XELPDP_PORT_RESET_START_TIMEOUT_US);
+
+ intel_de_rmw(i915, XELPDP_PORT_CLOCK_CTL(port),
+ intel_cx0_get_pclk_refclk_request(INTEL_CX0_BOTH_LANES),
+ intel_cx0_get_pclk_refclk_request(lane_mask));
+
+ if (__intel_de_wait_for_register(i915, XELPDP_PORT_CLOCK_CTL(port),
+ intel_cx0_get_pclk_refclk_ack(INTEL_CX0_BOTH_LANES),
+ intel_cx0_get_pclk_refclk_ack(lane_mask),
+ XELPDP_REFCLK_ENABLE_TIMEOUT_US, 0, NULL))
+ drm_warn(&i915->drm, "PHY %c failed to request refclk after %dus.\n",
+ phy_name(phy), XELPDP_REFCLK_ENABLE_TIMEOUT_US);
+
+ intel_cx0_powerdown_change_sequence(i915, port, INTEL_CX0_BOTH_LANES,
+ CX0_P2_STATE_RESET);
+ intel_cx0_setup_powerdown(i915, port);
+
+ intel_de_rmw(i915, XELPDP_PORT_BUF_CTL2(port),
+ XELPDP_LANE0_PIPE_RESET | XELPDP_LANE1_PIPE_RESET, 0);
+
+ if (intel_de_wait_for_clear(i915, XELPDP_PORT_BUF_CTL2(port),
+ XELPDP_LANE0_PHY_CURRENT_STATUS |
+ XELPDP_LANE1_PHY_CURRENT_STATUS,
+ XELPDP_PORT_RESET_END_TIMEOUT))
+ drm_warn(&i915->drm, "PHY %c failed to bring out of Lane reset after %dms.\n",
+ phy_name(phy), XELPDP_PORT_RESET_END_TIMEOUT);
+}
+
+static void intel_c10_program_phy_lane(struct drm_i915_private *i915,
+ struct intel_encoder *encoder, int lane_count,
+ bool lane_reversal)
+{
+ u8 l0t1, l0t2, l1t1, l1t2;
+ bool dp_alt_mode = intel_tc_port_in_dp_alt_mode(enc_to_dig_port(encoder));
+ enum port port = encoder->port;
+
+ intel_cx0_rmw(i915, port, INTEL_CX0_BOTH_LANES, PHY_C10_VDR_CONTROL(1),
+ C10_VDR_CTRL_MSGBUS_ACCESS, C10_VDR_CTRL_MSGBUS_ACCESS,
+ MB_WRITE_COMMITTED);
+
+ /* TODO: DP-alt MFD case where only one PHY lane should be programmed. */
+ l0t1 = intel_cx0_read(i915, port, INTEL_CX0_LANE0, PHY_CX0_TX_CONTROL(1, 2));
+ l0t2 = intel_cx0_read(i915, port, INTEL_CX0_LANE0, PHY_CX0_TX_CONTROL(2, 2));
+ l1t1 = intel_cx0_read(i915, port, INTEL_CX0_LANE1, PHY_CX0_TX_CONTROL(1, 2));
+ l1t2 = intel_cx0_read(i915, port, INTEL_CX0_LANE1, PHY_CX0_TX_CONTROL(2, 2));
+
+ if (lane_reversal) {
+ switch (lane_count) {
+ case 1:
+ l1t1 &= ~CONTROL2_DISABLE_SINGLE_TX;
+ break;
+ case 2:
+ l0t2 &= ~CONTROL2_DISABLE_SINGLE_TX;
+ break;
+ case 3:
+ l0t1 &= ~CONTROL2_DISABLE_SINGLE_TX;
+ break;
+ }
+ } else {
+ switch (lane_count) {
+ case 1:
+ if (dp_alt_mode)
+ l0t1 &= ~CONTROL2_DISABLE_SINGLE_TX;
+ else
+ l0t2 &= ~CONTROL2_DISABLE_SINGLE_TX;
+ break;
+ case 2:
+ l1t1 &= ~CONTROL2_DISABLE_SINGLE_TX;
+ break;
+ case 3:
+ l1t2 &= ~CONTROL2_DISABLE_SINGLE_TX;
+ break;
+ }
+ }
+
+ /* disable MLs */
+ intel_cx0_write(i915, port, INTEL_CX0_LANE0, PHY_CX0_TX_CONTROL(1, 2),
+ l0t1, MB_WRITE_COMMITTED);
+ intel_cx0_write(i915, port, INTEL_CX0_LANE0, PHY_CX0_TX_CONTROL(2, 2),
+ l0t2, MB_WRITE_COMMITTED);
+ intel_cx0_write(i915, port, INTEL_CX0_LANE1, PHY_CX0_TX_CONTROL(1, 2),
+ l1t1, MB_WRITE_COMMITTED);
+ intel_cx0_write(i915, port, INTEL_CX0_LANE1, PHY_CX0_TX_CONTROL(2, 2),
+ l1t2, MB_WRITE_COMMITTED);
+
+ intel_cx0_rmw(i915, port, INTEL_CX0_LANE1, PHY_C10_VDR_CONTROL(1),
+ C10_VDR_CTRL_UPDATE_CFG | C10_VDR_CTRL_MSGBUS_ACCESS,
+ C10_VDR_CTRL_UPDATE_CFG, MB_WRITE_COMMITTED);
+ intel_cx0_rmw(i915, port, INTEL_CX0_LANE0, PHY_C10_VDR_CONTROL(1),
+ C10_VDR_CTRL_UPDATE_CFG | C10_VDR_CTRL_MSGBUS_ACCESS,
+ C10_VDR_CTRL_MASTER_LANE | C10_VDR_CTRL_UPDATE_CFG, MB_WRITE_COMMITTED);
+}
+
+static u32 intel_cx0_get_pclk_pll_request(u8 lane_mask)
+{
+ int val = 0;
+ int lane = 0;
+
+ for_each_cx0_lane_in_mask(lane, lane_mask)
+ val |= XELPDP_LANE_PCLK_PLL_REQUEST(lane);
+
+ return val;
+}
+
+static u32 intel_cx0_get_pclk_pll_ack(u8 lane_mask)
+{
+ int val = 0;
+ int lane = 0;
+
+ for_each_cx0_lane_in_mask(lane, lane_mask)
+ val |= XELPDP_LANE_PCLK_PLL_ACK(lane);
+
+ return val;
+}
+
+static void intel_c10pll_enable(struct intel_encoder *encoder,
+ const struct intel_crtc_state *crtc_state)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+ enum phy phy = intel_port_to_phy(i915, encoder->port);
+ struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
+ bool lane_reversal = dig_port->saved_port_bits & DDI_BUF_PORT_REVERSAL;
+ u8 maxpclk_lane = lane_reversal ? INTEL_CX0_LANE1 :
+ INTEL_CX0_LANE0;
+
+ /*
+ * 1. Program PORT_CLOCK_CTL REGISTER to configure
+ * clock muxes, gating and SSC
+ */
+ intel_program_port_clock_ctl(encoder, crtc_state, lane_reversal);
+
+ /* 2. Bring PHY out of reset. */
+ intel_cx0_phy_lane_reset(i915, encoder->port, lane_reversal);
+
+ /*
+ * 3. Change Phy power state to Ready.
+ * TODO: For DP alt mode use only one lane.
+ */
+ intel_cx0_powerdown_change_sequence(i915, encoder->port, INTEL_CX0_BOTH_LANES,
+ CX0_P2_STATE_READY);
+
+ /* 4. Program PHY internal PLL internal registers. */
+ intel_c10_pll_program(i915, crtc_state, encoder);
+
+ /*
+ * 5. Program the enabled and disabled owned PHY lane
+ * transmitters over message bus
+ */
+ intel_c10_program_phy_lane(i915, encoder, crtc_state->lane_count, lane_reversal);
+
+ /*
+ * 6. Follow the Display Voltage Frequency Switching - Sequence
+ * Before Frequency Change. We handle this step in bxt_set_cdclk().
+ */
+
+ /*
+ * 7. Program DDI_CLK_VALFREQ to match intended DDI
+ * clock frequency.
+ */
+ intel_de_write(i915, DDI_CLK_VALFREQ(encoder->port),
+ crtc_state->port_clock);
+ /*
+ * 8. Set PORT_CLOCK_CTL register PCLK PLL Request
+ * LN<Lane for maxPCLK> to "1" to enable PLL.
+ */
+ intel_de_rmw(i915, XELPDP_PORT_CLOCK_CTL(encoder->port),
+ intel_cx0_get_pclk_pll_request(INTEL_CX0_BOTH_LANES),
+ intel_cx0_get_pclk_pll_request(maxpclk_lane));
+
+ /* 9. Poll on PORT_CLOCK_CTL PCLK PLL Ack LN<Lane for maxPCLK> == "1". */
+ if (__intel_de_wait_for_register(i915, XELPDP_PORT_CLOCK_CTL(encoder->port),
+ intel_cx0_get_pclk_pll_ack(INTEL_CX0_BOTH_LANES),
+ intel_cx0_get_pclk_pll_ack(maxpclk_lane),
+ XELPDP_PCLK_PLL_ENABLE_TIMEOUT_US, 0, NULL))
+ drm_warn(&i915->drm, "Port %c PLL not locked after %dus.\n",
+ phy_name(phy), XELPDP_PCLK_PLL_ENABLE_TIMEOUT_US);
+
+ /*
+ * 10. Follow the Display Voltage Frequency Switching Sequence After
+ * Frequency Change. We handle this step in bxt_set_cdclk().
+ */
+}
+
+void intel_cx0pll_enable(struct intel_encoder *encoder,
+ const struct intel_crtc_state *crtc_state)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+ enum phy phy = intel_port_to_phy(i915, encoder->port);
+ intel_wakeref_t wakeref;
+
+ wakeref = intel_cx0_phy_transaction_begin(encoder);
+
+ drm_WARN_ON(&i915->drm, !intel_is_c10phy(i915, phy));
+ intel_c10pll_enable(encoder, crtc_state);
+
+ /* TODO: enable TBT-ALT mode */
+ intel_cx0_phy_transaction_end(encoder, wakeref);
+}
+
+static void intel_c10pll_disable(struct intel_encoder *encoder)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+ enum phy phy = intel_port_to_phy(i915, encoder->port);
+
+ /* 1. Change owned PHY lane power to Disable state. */
+ intel_cx0_powerdown_change_sequence(i915, encoder->port, INTEL_CX0_BOTH_LANES,
+ CX0_P2PG_STATE_DISABLE);
+
+ /*
+ * 2. Follow the Display Voltage Frequency Switching Sequence Before
+ * Frequency Change. We handle this step in bxt_set_cdclk().
+ */
+
+ /*
+ * 3. Set PORT_CLOCK_CTL register PCLK PLL Request LN<Lane for maxPCLK>
+ * to "0" to disable PLL.
+ */
+ intel_de_rmw(i915, XELPDP_PORT_CLOCK_CTL(encoder->port),
+ intel_cx0_get_pclk_pll_request(INTEL_CX0_BOTH_LANES) |
+ intel_cx0_get_pclk_refclk_request(INTEL_CX0_BOTH_LANES), 0);
+
+ /* 4. Program DDI_CLK_VALFREQ to 0. */
+ intel_de_write(i915, DDI_CLK_VALFREQ(encoder->port), 0);
+
+ /*
+ * 5. Poll on PORT_CLOCK_CTL PCLK PLL Ack LN<Lane for maxPCLK**> == "0".
+ */
+ if (__intel_de_wait_for_register(i915, XELPDP_PORT_CLOCK_CTL(encoder->port),
+ intel_cx0_get_pclk_pll_ack(INTEL_CX0_BOTH_LANES) |
+ intel_cx0_get_pclk_refclk_ack(INTEL_CX0_BOTH_LANES), 0,
+ XELPDP_PCLK_PLL_DISABLE_TIMEOUT_US, 0, NULL))
+ drm_warn(&i915->drm, "Port %c PLL not unlocked after %dus.\n",
+ phy_name(phy), XELPDP_PCLK_PLL_DISABLE_TIMEOUT_US);
+
+ /*
+ * 6. Follow the Display Voltage Frequency Switching Sequence After
+ * Frequency Change. We handle this step in bxt_set_cdclk().
+ */
+
+ /* 7. Program PORT_CLOCK_CTL register to disable and gate clocks. */
+ intel_de_rmw(i915, XELPDP_PORT_CLOCK_CTL(encoder->port),
+ XELPDP_DDI_CLOCK_SELECT_MASK |
+ XELPDP_FORWARD_CLOCK_UNGATE, 0);
+}
+
+void intel_cx0pll_disable(struct intel_encoder *encoder)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+ enum phy phy = intel_port_to_phy(i915, encoder->port);
+ intel_wakeref_t wakeref;
+
+ wakeref = intel_cx0_phy_transaction_begin(encoder);
+
+ drm_WARN_ON(&i915->drm, !intel_is_c10phy(i915, phy));
+ intel_c10pll_disable(encoder);
+ intel_cx0_phy_transaction_end(encoder, wakeref);
+}
+
+void intel_c10mpllb_state_verify(struct intel_atomic_state *state,
+ struct intel_crtc_state *new_crtc_state)
+{
+ struct drm_i915_private *i915 = to_i915(state->base.dev);
+ struct intel_c10mpllb_state mpllb_hw_state = { 0 };
+ struct intel_c10mpllb_state *mpllb_sw_state = &new_crtc_state->c10mpllb_state;
+ struct intel_crtc *crtc = to_intel_crtc(new_crtc_state->uapi.crtc);
+ struct intel_encoder *encoder;
+ struct intel_dp *intel_dp;
+ enum phy phy;
+ int i;
+ bool use_ssc = false;
+
+ if (DISPLAY_VER(i915) < 14)
+ return;
+
+ if (!new_crtc_state->hw.active)
+ return;
+
+ encoder = intel_get_crtc_new_encoder(state, new_crtc_state);
+ phy = intel_port_to_phy(i915, encoder->port);
+
+ if (intel_crtc_has_dp_encoder(new_crtc_state)) {
+ intel_dp = enc_to_intel_dp(encoder);
+ use_ssc = (intel_dp->dpcd[DP_MAX_DOWNSPREAD] &
+ DP_MAX_DOWNSPREAD_0_5);
+
+ if (!intel_panel_use_ssc(i915))
+ use_ssc = false;
+ }
+
+ if (!intel_is_c10phy(i915, phy))
+ return;
+
+ intel_c10mpllb_readout_hw_state(encoder, &mpllb_hw_state);
+
+ for (i = 0; i < ARRAY_SIZE(mpllb_sw_state->pll); i++) {
+ u8 expected = mpllb_sw_state->pll[i];
+
+ I915_STATE_WARN(mpllb_hw_state.pll[i] != expected,
+ "[CRTC:%d:%s] mismatch in C10MPLLB: Register[%d] (expected 0x%02x, found 0x%02x)",
+ crtc->base.base.id, crtc->base.name,
+ i, expected, mpllb_hw_state.pll[i]);
+ }
+}
diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy.h b/drivers/gpu/drm/i915/display/intel_cx0_phy.h
new file mode 100644
index 000000000000..30b1b11b2176
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_cx0_phy.h
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2021 Intel Corporation
+ */
+
+#ifndef __INTEL_CX0_PHY_H__
+#define __INTEL_CX0_PHY_H__
+
+#include <linux/types.h>
+#include <linux/bitfield.h>
+#include <linux/bits.h>
+
+#include "i915_drv.h"
+#include "intel_display_types.h"
+
+struct drm_i915_private;
+struct intel_encoder;
+struct intel_crtc_state;
+enum phy;
+
+#define for_each_cx0_lane_in_mask(__lane_mask, __lane) \
+ for ((__lane) = 0; (__lane) < 2; (__lane)++) \
+ for_each_if((__lane_mask) & BIT(__lane))
+
+#define INTEL_CX0_LANE0 BIT(0)
+#define INTEL_CX0_LANE1 BIT(1)
+#define INTEL_CX0_BOTH_LANES (INTEL_CX0_LANE1 | INTEL_CX0_LANE0)
+
+bool intel_is_c10phy(struct drm_i915_private *dev_priv, enum phy phy);
+void intel_cx0pll_enable(struct intel_encoder *encoder,
+ const struct intel_crtc_state *crtc_state);
+void intel_cx0pll_disable(struct intel_encoder *encoder);
+void intel_c10mpllb_readout_hw_state(struct intel_encoder *encoder,
+ struct intel_c10mpllb_state *pll_state);
+int intel_cx0mpllb_calc_state(struct intel_crtc_state *crtc_state,
+ struct intel_encoder *encoder);
+void intel_c10mpllb_dump_hw_state(struct drm_i915_private *dev_priv,
+ const struct intel_c10mpllb_state *hw_state);
+int intel_c10mpllb_calc_port_clock(struct intel_encoder *encoder,
+ const struct intel_c10mpllb_state *pll_state);
+void intel_c10mpllb_state_verify(struct intel_atomic_state *state,
+ struct intel_crtc_state *new_crtc_state);
+
+#endif /* __INTEL_CX0_PHY_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h b/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h
index d1ee8a2fc9cf..ba7105dd37af 100644
--- a/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h
+++ b/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h
@@ -128,4 +128,35 @@
#define XELPDP_SSC_ENABLE_PLLA REG_BIT(1)
#define XELPDP_SSC_ENABLE_PLLB REG_BIT(0)
-#endif /* __INTEL_CX0_PHY_REGS_H__ */
+/* C10 Vendor Registers */
+#define PHY_C10_VDR_PLL(idx) (0xC00 + (idx))
+#define C10_PLL0_FRACEN REG_BIT8(4)
+#define C10_PLL3_MULTIPLIERH_MASK REG_GENMASK8(3, 0)
+#define C10_PLL15_TXCLKDIV_MASK REG_GENMASK8(2, 0)
+#define PHY_C10_VDR_CMN(idx) (0xC20 + (idx))
+#define C10_CMN0_REF_RANGE REG_FIELD_PREP(REG_GENMASK(4, 0), 1)
+#define C10_CMN0_REF_CLK_MPLLB_DIV REG_FIELD_PREP(REG_GENMASK(7, 5), 1)
+#define C10_CMN3_TXVBOOST_MASK REG_GENMASK8(7, 5)
+#define C10_CMN3_TXVBOOST(val) REG_FIELD_PREP8(C10_CMN3_TXVBOOST_MASK, val)
+#define PHY_C10_VDR_TX(idx) (0xC30 + (idx))
+#define C10_TX0_TX_MPLLB_SEL REG_BIT(4)
+#define PHY_C10_VDR_CONTROL(idx) (0xC70 + (idx) - 1)
+#define C10_VDR_CTRL_MSGBUS_ACCESS REG_BIT8(2)
+#define C10_VDR_CTRL_MASTER_LANE REG_BIT8(1)
+#define C10_VDR_CTRL_UPDATE_CFG REG_BIT8(0)
+#define PHY_C10_VDR_CUSTOM_WIDTH 0xD02
+#define C10_VDR_CUSTOM_WIDTH REG_FIELD_PREP(REG_GENMASK(1, 0), 3)
+#define CX0_P0_STATE_ACTIVE 0x0
+#define CX0_P2_STATE_READY 0x2
+#define CX0_P2PG_STATE_DISABLE 0x9
+#define CX0_P4PG_STATE_DISABLE 0xC
+#define CX0_P2_STATE_RESET 0x2
+
+/* PHY_C10_VDR_PLL0 */
+#define PLL_C10_MPLL_SSC_EN REG_BIT8(0)
+
+/* PIPE SPEC Defined Registers */
+#define PHY_CX0_TX_CONTROL(tx, control) (0x400 + ((tx) - 1) * 0x200 + (control))
+#define CONTROL2_DISABLE_SINGLE_TX REG_BIT(6)
+
+#endif /* __INTEL_CX0_REG_DEFS_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index dc294717bcdf..7fa1dca19c28 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -39,6 +39,7 @@
#include "intel_combo_phy_regs.h"
#include "intel_connector.h"
#include "intel_crtc.h"
+#include "intel_cx0_phy.h"
#include "intel_ddi.h"
#include "intel_ddi_buf_trans.h"
#include "intel_de.h"
@@ -3493,6 +3494,21 @@ void intel_ddi_get_clock(struct intel_encoder *encoder,
&crtc_state->dpll_hw_state);
}
+static void mtl_ddi_get_config(struct intel_encoder *encoder,
+ struct intel_crtc_state *crtc_state)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+ enum phy phy = intel_port_to_phy(i915, encoder->port);
+
+ drm_WARN_ON(&i915->drm, !intel_is_c10phy(i915, phy));
+
+ intel_c10mpllb_readout_hw_state(encoder, &crtc_state->c10mpllb_state);
+ intel_c10mpllb_dump_hw_state(i915, &crtc_state->c10mpllb_state);
+ crtc_state->port_clock = intel_c10mpllb_calc_port_clock(encoder, &crtc_state->c10mpllb_state);
+
+ intel_ddi_get_config(encoder, crtc_state);
+}
+
static void dg2_ddi_get_config(struct intel_encoder *encoder,
struct intel_crtc_state *crtc_state)
{
@@ -4400,7 +4416,11 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
encoder->cloneable = 0;
encoder->pipe_mask = ~0;
- if (IS_DG2(dev_priv)) {
+ if (DISPLAY_VER(dev_priv) >= 14) {
+ encoder->enable_clock = intel_cx0pll_enable;
+ encoder->disable_clock = intel_cx0pll_disable;
+ encoder->get_config = mtl_ddi_get_config;
+ } else if (IS_DG2(dev_priv)) {
encoder->enable_clock = intel_mpllb_enable;
encoder->disable_clock = intel_mpllb_disable;
encoder->get_config = dg2_ddi_get_config;
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index 47395b39c8f4..7dd128ab9a49 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -980,6 +980,13 @@ struct intel_link_m_n {
u32 link_n;
};
+struct intel_c10mpllb_state {
+ u32 clock; /* in KHz */
+ u8 tx;
+ u8 cmn;
+ u8 pll[20];
+};
+
struct intel_crtc_state {
/*
* uapi (drm) state. This is the software state shown to userspace.
@@ -1123,6 +1130,7 @@ struct intel_crtc_state {
union {
struct intel_dpll_hw_state dpll_hw_state;
struct intel_mpllb_state mpllb_state;
+ struct intel_c10mpllb_state c10mpllb_state;
};
/*
diff --git a/drivers/gpu/drm/i915/display/intel_dpll.c b/drivers/gpu/drm/i915/display/intel_dpll.c
index 4e9c18be7e1f..da5aa050a5ab 100644
--- a/drivers/gpu/drm/i915/display/intel_dpll.c
+++ b/drivers/gpu/drm/i915/display/intel_dpll.c
@@ -8,6 +8,7 @@
#include "i915_reg.h"
#include "intel_crtc.h"
+#include "intel_cx0_phy.h"
#include "intel_de.h"
#include "intel_display.h"
#include "intel_display_types.h"
@@ -995,6 +996,17 @@ static int dg2_crtc_compute_clock(struct intel_atomic_state *state,
return 0;
}
+static int mtl_crtc_compute_clock(struct intel_atomic_state *state,
+ struct intel_crtc *crtc)
+{
+ struct intel_crtc_state *crtc_state =
+ intel_atomic_get_new_crtc_state(state, crtc);
+ struct intel_encoder *encoder =
+ intel_get_crtc_new_encoder(state, crtc_state);
+
+ return intel_cx0mpllb_calc_state(crtc_state, encoder);
+}
+
static bool ilk_needs_fb_cb_tune(const struct dpll *dpll, int factor)
{
return dpll->m < factor * dpll->n;
@@ -1423,6 +1435,10 @@ static int i8xx_crtc_compute_clock(struct intel_atomic_state *state,
return 0;
}
+static const struct intel_dpll_funcs mtl_dpll_funcs = {
+ .crtc_compute_clock = mtl_crtc_compute_clock,
+};
+
static const struct intel_dpll_funcs dg2_dpll_funcs = {
.crtc_compute_clock = dg2_crtc_compute_clock,
};
@@ -1517,7 +1533,9 @@ int intel_dpll_crtc_get_shared_dpll(struct intel_atomic_state *state,
void
intel_dpll_init_clock_hook(struct drm_i915_private *dev_priv)
{
- if (IS_DG2(dev_priv))
+ if (DISPLAY_VER(dev_priv) >= 14)
+ dev_priv->display.funcs.dpll = &mtl_dpll_funcs;
+ else if (IS_DG2(dev_priv))
dev_priv->display.funcs.dpll = &dg2_dpll_funcs;
else if (DISPLAY_VER(dev_priv) >= 9 || HAS_DDI(dev_priv))
dev_priv->display.funcs.dpll = &hsw_dpll_funcs;
diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
index 22fc908b7e5d..ed372d227aa7 100644
--- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
+++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
@@ -4104,7 +4104,7 @@ void intel_shared_dpll_init(struct drm_i915_private *dev_priv)
mutex_init(&dev_priv->display.dpll.lock);
- if (IS_DG2(dev_priv))
+ if (DISPLAY_VER(dev_priv) >= 14 || IS_DG2(dev_priv))
/* No shared DPLLs on DG2; port PLLs are part of the PHY */
dpll_mgr = NULL;
else if (IS_ALDERLAKE_P(dev_priv))
diff --git a/drivers/gpu/drm/i915/display/intel_modeset_verify.c b/drivers/gpu/drm/i915/display/intel_modeset_verify.c
index 842d70f0dfd2..ec504470c2f0 100644
--- a/drivers/gpu/drm/i915/display/intel_modeset_verify.c
+++ b/drivers/gpu/drm/i915/display/intel_modeset_verify.c
@@ -11,6 +11,7 @@
#include "intel_atomic.h"
#include "intel_crtc.h"
#include "intel_crtc_state_dump.h"
+#include "intel_cx0_phy.h"
#include "intel_display.h"
#include "intel_display_types.h"
#include "intel_fdi.h"
@@ -236,6 +237,7 @@ void intel_modeset_verify_crtc(struct intel_crtc *crtc,
verify_crtc_state(crtc, old_crtc_state, new_crtc_state);
intel_shared_dpll_state_verify(crtc, old_crtc_state, new_crtc_state);
intel_mpllb_state_verify(state, new_crtc_state);
+ intel_c10mpllb_state_verify(state, new_crtc_state);
}
void intel_modeset_verify_disabled(struct drm_i915_private *dev_priv,
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 736a8dcf777b..4bd047be51df 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -1809,6 +1809,11 @@
#define CLKGATE_DIS_PSL_EXT(pipe) \
_MMIO_PIPE(pipe, _CLKGATE_DIS_PSL_EXT_A, _CLKGATE_DIS_PSL_EXT_B)
+/* DDI Buffer Control */
+#define _DDI_CLK_VALFREQ_A 0x64030
+#define _DDI_CLK_VALFREQ_B 0x64130
+#define DDI_CLK_VALFREQ(port) _MMIO_PORT(port, _DDI_CLK_VALFREQ_A, _DDI_CLK_VALFREQ_B)
+
/*
* Display engine regs
*/
diff --git a/drivers/gpu/drm/i915/i915_reg_defs.h b/drivers/gpu/drm/i915/i915_reg_defs.h
index db26de6b57bc..f9d7c03e95d6 100644
--- a/drivers/gpu/drm/i915/i915_reg_defs.h
+++ b/drivers/gpu/drm/i915/i915_reg_defs.h
@@ -22,6 +22,19 @@
BUILD_BUG_ON_ZERO(__is_constexpr(__n) && \
((__n) < 0 || (__n) > 31))))
+/**
+ * REG_BIT8() - Prepare a u8 bit value
+ * @__n: 0-based bit number
+ *
+ * Local wrapper for BIT() to force u8, with compile time checks.
+ *
+ * @return: Value with bit @__n set.
+ */
+#define REG_BIT8(__n) \
+ ((u8)(BIT(__n) + \
+ BUILD_BUG_ON_ZERO(__is_constexpr(__n) && \
+ ((__n) < 0 || (__n) > 7))))
+
/**
* REG_GENMASK() - Prepare a continuous u32 bitmask
* @__high: 0-based high bit
@@ -52,6 +65,21 @@
__is_constexpr(__low) && \
((__low) < 0 || (__high) > 63 || (__low) > (__high)))))
+/**
+ * REG_GENMASK8() - Prepare a continuous u8 bitmask
+ * @__high: 0-based high bit
+ * @__low: 0-based low bit
+ *
+ * Local wrapper for GENMASK() to force u8, with compile time checks.
+ *
+ * @return: Continuous bitmask from @__high to @__low, inclusive.
+ */
+#define REG_GENMASK8(__high, __low) \
+ ((u8)(GENMASK(__high, __low) + \
+ BUILD_BUG_ON_ZERO(__is_constexpr(__high) && \
+ __is_constexpr(__low) && \
+ ((__low) < 0 || (__high) > 7 || (__low) > (__high)))))
+
/*
* Local integer constant expression version of is_power_of_2().
*/
@@ -74,6 +102,23 @@
BUILD_BUG_ON_ZERO(!IS_POWER_OF_2((__mask) + (1ULL << __bf_shf(__mask)))) + \
BUILD_BUG_ON_ZERO(__builtin_choose_expr(__is_constexpr(__val), (~((__mask) >> __bf_shf(__mask)) & (__val)), 0))))
+/**
+ * REG_FIELD_PREP8() - Prepare a u8 bitfield value
+ * @__mask: shifted mask defining the field's length and position
+ * @__val: value to put in the field
+ *
+ * Local copy of FIELD_PREP8() to generate an integer constant expression, force
+ * u8 and for consistency with REG_FIELD_GET8(), REG_BIT8() and REG_GENMASK8().
+ *
+ * @return: @__val masked and shifted into the field defined by @__mask.
+ */
+#define REG_FIELD_PREP8(__mask, __val) \
+ ((u8)((((typeof(__mask))(__val) << __bf_shf(__mask)) & (__mask)) + \
+ BUILD_BUG_ON_ZERO(!__is_constexpr(__mask)) + \
+ BUILD_BUG_ON_ZERO((__mask) == 0 || (__mask) > U8_MAX) + \
+ BUILD_BUG_ON_ZERO(!IS_POWER_OF_2((__mask) + (1ULL << __bf_shf(__mask)))) + \
+ BUILD_BUG_ON_ZERO(__builtin_choose_expr(__is_constexpr(__val), (~((__mask) >> __bf_shf(__mask)) & (__val)), 0))))
+
/**
* REG_FIELD_GET() - Extract a u32 bitfield value
* @__mask: shifted mask defining the field's length and position
@@ -155,6 +200,18 @@
*/
#define _PICK(__index, ...) (((const u32 []){ __VA_ARGS__ })[__index])
+/**
+ * REG_FIELD_GET8() - Extract a u8 bitfield value
+ * @__mask: shifted mask defining the field's length and position
+ * @__val: value to extract the bitfield value from
+ *
+ * Local wrapper for FIELD_GET() to force u8 and for consistency with
+ * REG_FIELD_PREP(), REG_BIT() and REG_GENMASK().
+ *
+ * @return: Masked and shifted value of the field defined by @__mask in @__val.
+ */
+#define REG_FIELD_GET8(__mask, __val) ((u8)FIELD_GET(__mask, __val))
+
typedef struct {
u32 reg;
} i915_reg_t;
--
2.34.1
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