On Wed, Aug 23, 2023 at 10:07:16AM -0700, Lucas De Marchi wrote:
> Some registers for DDI A/B moved to PICA and now follow the same format
> as the ones for the PORT_TC ports. The wrapper here deals with 2 issues:
>
> - Share the implementation between xe2lpd and previous
> platforms: there are minor layout changes, it's mostly the
> register location that changed
> - Handle offsets after TC ports
>
> Signed-off-by: Lucas De Marchi <[email protected]>
> ---
> drivers/gpu/drm/i915/display/intel_cx0_phy.c | 81 ++++++++++---------
> .../gpu/drm/i915/display/intel_cx0_phy_regs.h | 71 ++++++++++++++--
> drivers/gpu/drm/i915/display/intel_ddi.c | 18 +++--
> 3 files changed, 117 insertions(+), 53 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy.c
> b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
> index a5918bf30c31..6533ec417806 100644
> --- a/drivers/gpu/drm/i915/display/intel_cx0_phy.c
> +++ b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
> @@ -98,7 +98,7 @@ static void intel_cx0_phy_transaction_end(struct
> intel_encoder *encoder, intel_w
> 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),
> + intel_de_rmw(i915, xelpdp_port_p2m_msgbus_status_reg(i915, port, lane),
> 0, XELPDP_PORT_P2M_RESPONSE_READY |
> XELPDP_PORT_P2M_ERROR_SET);
> }
>
> @@ -106,10 +106,10 @@ static void intel_cx0_bus_reset(struct drm_i915_private
> *i915, enum port port, i
> {
> enum phy phy = intel_port_to_phy(i915, port);
>
> - intel_de_write(i915, XELPDP_PORT_M2P_MSGBUS_CTL(port, lane),
> + intel_de_write(i915, xelpdp_port_m2p_msgbus_ctl_reg(i915, port, lane),
> XELPDP_PORT_M2P_TRANSACTION_RESET);
>
> - if (intel_de_wait_for_clear(i915, XELPDP_PORT_M2P_MSGBUS_CTL(port,
> lane),
> + if (intel_de_wait_for_clear(i915, xelpdp_port_m2p_msgbus_ctl_reg(i915,
> 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));
> @@ -125,7 +125,7 @@ static int intel_cx0_wait_for_ack(struct drm_i915_private
> *i915, enum port port,
> 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_msgbus_status_reg(i915, port, lane),
> XELPDP_PORT_P2M_RESPONSE_READY,
> XELPDP_PORT_P2M_RESPONSE_READY,
> XELPDP_MSGBUS_TIMEOUT_FAST_US,
> @@ -160,7 +160,7 @@ static int __intel_cx0_read_once(struct drm_i915_private
> *i915, enum port port,
> int ack;
> u32 val;
>
> - if (intel_de_wait_for_clear(i915, XELPDP_PORT_M2P_MSGBUS_CTL(port,
> lane),
> + if (intel_de_wait_for_clear(i915, xelpdp_port_m2p_msgbus_ctl_reg(i915,
> port, lane),
> XELPDP_PORT_M2P_TRANSACTION_PENDING,
> XELPDP_MSGBUS_TIMEOUT_SLOW)) {
> drm_dbg_kms(&i915->drm,
> @@ -169,7 +169,7 @@ static int __intel_cx0_read_once(struct drm_i915_private
> *i915, enum port port,
> return -ETIMEDOUT;
> }
>
> - intel_de_write(i915, XELPDP_PORT_M2P_MSGBUS_CTL(port, lane),
> + intel_de_write(i915, xelpdp_port_m2p_msgbus_ctl_reg(i915, port, lane),
> XELPDP_PORT_M2P_TRANSACTION_PENDING |
> XELPDP_PORT_M2P_COMMAND_READ |
> XELPDP_PORT_M2P_ADDRESS(addr));
> @@ -220,7 +220,7 @@ static int __intel_cx0_write_once(struct drm_i915_private
> *i915, enum port port,
> int ack;
> u32 val;
>
> - if (intel_de_wait_for_clear(i915, XELPDP_PORT_M2P_MSGBUS_CTL(port,
> lane),
> + if (intel_de_wait_for_clear(i915, xelpdp_port_m2p_msgbus_ctl_reg(i915,
> port, lane),
> XELPDP_PORT_M2P_TRANSACTION_PENDING,
> XELPDP_MSGBUS_TIMEOUT_SLOW)) {
> drm_dbg_kms(&i915->drm,
> @@ -229,14 +229,14 @@ static int __intel_cx0_write_once(struct
> drm_i915_private *i915, enum port port,
> return -ETIMEDOUT;
> }
>
> - intel_de_write(i915, XELPDP_PORT_M2P_MSGBUS_CTL(port, lane),
> + intel_de_write(i915, xelpdp_port_m2p_msgbus_ctl_reg(i915, 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));
>
> - if (intel_de_wait_for_clear(i915, XELPDP_PORT_M2P_MSGBUS_CTL(port,
> lane),
> + if (intel_de_wait_for_clear(i915, xelpdp_port_m2p_msgbus_ctl_reg(i915,
> port, lane),
> XELPDP_PORT_M2P_TRANSACTION_PENDING,
> XELPDP_MSGBUS_TIMEOUT_SLOW)) {
> drm_dbg_kms(&i915->drm,
> @@ -249,7 +249,7 @@ static int __intel_cx0_write_once(struct drm_i915_private
> *i915, enum port port,
> ack = intel_cx0_wait_for_ack(i915, port,
> XELPDP_PORT_P2M_COMMAND_WRITE_ACK, lane, &val);
> if (ack < 0)
> return ack;
> - } else if ((intel_de_read(i915, XELPDP_PORT_P2M_MSGBUS_STATUS(port,
> lane)) &
> + } else if ((intel_de_read(i915, xelpdp_port_p2m_msgbus_status_reg(i915,
> port, lane)) &
> XELPDP_PORT_P2M_ERROR_SET)) {
> drm_dbg_kms(&i915->drm,
> "PHY %c Error occurred during write command.\n",
> phy_name(phy));
> @@ -2431,7 +2431,8 @@ static void intel_program_port_clock_ctl(struct
> intel_encoder *encoder,
> struct drm_i915_private *i915 = to_i915(encoder->base.dev);
> u32 val = 0;
>
> - intel_de_rmw(i915, XELPDP_PORT_BUF_CTL1(encoder->port),
> XELPDP_PORT_REVERSAL,
> + intel_de_rmw(i915, xelpdp_port_buf_ctl1_reg(i915, encoder->port),
> + XELPDP_PORT_REVERSAL,
> lane_reversal ? XELPDP_PORT_REVERSAL : 0);
>
> if (lane_reversal)
> @@ -2451,7 +2452,7 @@ static void intel_program_port_clock_ctl(struct
> intel_encoder *encoder,
> else
> val |= crtc_state->cx0pll_state.ssc_enabled ?
> XELPDP_SSC_ENABLE_PLLB : 0;
>
> - intel_de_rmw(i915, XELPDP_PORT_CLOCK_CTL(encoder->port),
> + intel_de_rmw(i915, xelpdp_port_clock_ctl_reg(i915, encoder->port),
> XELPDP_LANE1_PHY_CLOCK_SELECT |
> XELPDP_FORWARD_CLOCK_UNGATE |
> XELPDP_DDI_CLOCK_SELECT_MASK | XELPDP_SSC_ENABLE_PLLA |
> XELPDP_SSC_ENABLE_PLLB, val);
> @@ -2484,15 +2485,16 @@ static void
> intel_cx0_powerdown_change_sequence(struct drm_i915_private *i915,
> u8 lane_mask, u8 state)
> {
> enum phy phy = intel_port_to_phy(i915, port);
> + i915_reg_t buf_ctl2_reg = xelpdp_port_buf_ctl2_reg(i915, port);
> int lane;
>
> - intel_de_rmw(i915, XELPDP_PORT_BUF_CTL2(port),
> + intel_de_rmw(i915, buf_ctl2_reg,
> intel_cx0_get_powerdown_state(INTEL_CX0_BOTH_LANES,
> XELPDP_LANE_POWERDOWN_NEW_STATE_MASK),
> intel_cx0_get_powerdown_state(lane_mask, state));
>
> /* Wait for pending transactions.*/
> for_each_cx0_lane_in_mask(lane_mask, lane)
> - if (intel_de_wait_for_clear(i915,
> XELPDP_PORT_M2P_MSGBUS_CTL(port, lane),
> + if (intel_de_wait_for_clear(i915,
> xelpdp_port_m2p_msgbus_ctl_reg(i915, port, lane),
> XELPDP_PORT_M2P_TRANSACTION_PENDING,
> XELPDP_MSGBUS_TIMEOUT_SLOW)) {
> drm_dbg_kms(&i915->drm,
> @@ -2501,12 +2503,12 @@ static void
> intel_cx0_powerdown_change_sequence(struct drm_i915_private *i915,
> intel_cx0_bus_reset(i915, port, lane);
> }
>
> - intel_de_rmw(i915, XELPDP_PORT_BUF_CTL2(port),
> + intel_de_rmw(i915, buf_ctl2_reg,
> intel_cx0_get_powerdown_update(INTEL_CX0_BOTH_LANES),
> intel_cx0_get_powerdown_update(lane_mask));
>
> /* Update Timeout Value */
> - if (__intel_de_wait_for_register(i915, XELPDP_PORT_BUF_CTL2(port),
> + if (__intel_de_wait_for_register(i915, buf_ctl2_reg,
>
> 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",
> @@ -2515,10 +2517,10 @@ static void
> intel_cx0_powerdown_change_sequence(struct drm_i915_private *i915,
>
> static void intel_cx0_setup_powerdown(struct drm_i915_private *i915, enum
> port port)
> {
> - intel_de_rmw(i915, XELPDP_PORT_BUF_CTL2(port),
> + intel_de_rmw(i915, xelpdp_port_buf_ctl2_reg(i915, port),
> XELPDP_POWER_STATE_READY_MASK,
> XELPDP_POWER_STATE_READY(CX0_P2_STATE_READY));
> - intel_de_rmw(i915, XELPDP_PORT_BUF_CTL3(port),
> + intel_de_rmw(i915, xelpdp_port_buf_ctl3_reg(i915, port),
> XELPDP_POWER_STATE_ACTIVE_MASK |
> XELPDP_PLL_LANE_STAGGERING_DELAY_MASK,
> XELPDP_POWER_STATE_ACTIVE(CX0_P0_STATE_ACTIVE) |
> @@ -2563,28 +2565,28 @@ static void intel_cx0_phy_lane_reset(struct
> drm_i915_private *i915,
> XELPDP_LANE_PHY_CURRENT_STATUS(1))
> : XELPDP_LANE_PHY_CURRENT_STATUS(0);
>
> - if (__intel_de_wait_for_register(i915, XELPDP_PORT_BUF_CTL1(port),
> + if (__intel_de_wait_for_register(i915, xelpdp_port_buf_ctl1_reg(i915,
> 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),
> + intel_de_rmw(i915, xelpdp_port_buf_ctl2_reg(i915, port),
> XELPDP_LANE_PIPE_RESET(0) | XELPDP_LANE_PIPE_RESET(1),
> lane_pipe_reset);
>
> - if (__intel_de_wait_for_register(i915, XELPDP_PORT_BUF_CTL2(port),
> + if (__intel_de_wait_for_register(i915, xelpdp_port_buf_ctl2_reg(i915,
> port),
> lane_phy_current_status,
> lane_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_de_rmw(i915, xelpdp_port_clock_ctl_reg(i915, port),
> intel_cx0_get_pclk_refclk_request(owned_lane_mask),
> intel_cx0_get_pclk_refclk_request(lane_mask));
>
> - if (__intel_de_wait_for_register(i915, XELPDP_PORT_CLOCK_CTL(port),
> + if (__intel_de_wait_for_register(i915, xelpdp_port_clock_ctl_reg(i915,
> port),
>
> intel_cx0_get_pclk_refclk_ack(owned_lane_mask),
>
> intel_cx0_get_pclk_refclk_ack(lane_mask),
> XELPDP_REFCLK_ENABLE_TIMEOUT_US, 0,
> NULL))
> @@ -2595,9 +2597,10 @@ static void intel_cx0_phy_lane_reset(struct
> drm_i915_private *i915,
> CX0_P2_STATE_RESET);
> intel_cx0_setup_powerdown(i915, port);
>
> - intel_de_rmw(i915, XELPDP_PORT_BUF_CTL2(port), lane_pipe_reset, 0);
> + intel_de_rmw(i915, xelpdp_port_buf_ctl2_reg(i915, port),
> lane_pipe_reset, 0);
>
> - if (intel_de_wait_for_clear(i915, XELPDP_PORT_BUF_CTL2(port),
> lane_phy_current_status,
> + if (intel_de_wait_for_clear(i915, xelpdp_port_buf_ctl2_reg(i915, port),
> + lane_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);
> @@ -2726,12 +2729,12 @@ static void intel_cx0pll_enable(struct intel_encoder
> *encoder,
> * 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_de_rmw(i915, xelpdp_port_clock_ctl_reg(i915, 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),
> + if (__intel_de_wait_for_register(i915, xelpdp_port_clock_ctl_reg(i915,
> 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))
> @@ -2751,7 +2754,7 @@ int intel_mtl_tbt_calc_port_clock(struct intel_encoder
> *encoder)
> {
> struct drm_i915_private *i915 = to_i915(encoder->base.dev);
> u32 clock;
> - u32 val = intel_de_read(i915, XELPDP_PORT_CLOCK_CTL(encoder->port));
> + u32 val = intel_de_read(i915, xelpdp_port_clock_ctl_reg(i915,
> encoder->port));
>
> clock = REG_FIELD_GET(XELPDP_DDI_CLOCK_SELECT_MASK, val);
>
> @@ -2804,11 +2807,11 @@ static void intel_mtl_tbt_pll_enable(struct
> intel_encoder *encoder,
> */
> val |= XELPDP_DDI_CLOCK_SELECT(intel_mtl_tbt_clock_select(i915,
> crtc_state->port_clock));
> val |= XELPDP_FORWARD_CLOCK_UNGATE;
> - intel_de_rmw(i915, XELPDP_PORT_CLOCK_CTL(encoder->port),
> + intel_de_rmw(i915, xelpdp_port_clock_ctl_reg(i915, encoder->port),
> XELPDP_DDI_CLOCK_SELECT_MASK |
> XELPDP_FORWARD_CLOCK_UNGATE, val);
>
> /* 2. Read back PORT_CLOCK_CTL REGISTER */
> - val = intel_de_read(i915, XELPDP_PORT_CLOCK_CTL(encoder->port));
> + val = intel_de_read(i915, xelpdp_port_clock_ctl_reg(i915,
> encoder->port));
>
> /*
> * 3. Follow the Display Voltage Frequency Switching - Sequence
> @@ -2819,10 +2822,10 @@ static void intel_mtl_tbt_pll_enable(struct
> intel_encoder *encoder,
> * 4. Set PORT_CLOCK_CTL register TBT CLOCK Request to "1" to enable
> PLL.
> */
> val |= XELPDP_TBT_CLOCK_REQUEST;
> - intel_de_write(i915, XELPDP_PORT_CLOCK_CTL(encoder->port), val);
> + intel_de_write(i915, xelpdp_port_clock_ctl_reg(i915, encoder->port),
> val);
>
> /* 5. Poll on PORT_CLOCK_CTL TBT CLOCK Ack == "1". */
> - if (__intel_de_wait_for_register(i915,
> XELPDP_PORT_CLOCK_CTL(encoder->port),
> + if (__intel_de_wait_for_register(i915, xelpdp_port_clock_ctl_reg(i915,
> encoder->port),
> XELPDP_TBT_CLOCK_ACK,
> XELPDP_TBT_CLOCK_ACK,
> 100, 0, NULL))
> @@ -2874,7 +2877,7 @@ static void intel_cx0pll_disable(struct intel_encoder
> *encoder)
> * 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_de_rmw(i915, xelpdp_port_clock_ctl_reg(i915, encoder->port),
> intel_cx0_get_pclk_pll_request(INTEL_CX0_BOTH_LANES) |
> intel_cx0_get_pclk_refclk_request(INTEL_CX0_BOTH_LANES),
> 0);
>
> @@ -2884,7 +2887,7 @@ static void intel_cx0pll_disable(struct intel_encoder
> *encoder)
> /*
> * 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),
> + if (__intel_de_wait_for_register(i915, xelpdp_port_clock_ctl_reg(i915,
> 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))
> @@ -2897,9 +2900,9 @@ static void intel_cx0pll_disable(struct intel_encoder
> *encoder)
> */
>
> /* 7. Program PORT_CLOCK_CTL register to disable and gate clocks. */
> - intel_de_rmw(i915, XELPDP_PORT_CLOCK_CTL(encoder->port),
> + intel_de_rmw(i915, xelpdp_port_clock_ctl_reg(i915, encoder->port),
> XELPDP_DDI_CLOCK_SELECT_MASK, 0);
> - intel_de_rmw(i915, XELPDP_PORT_CLOCK_CTL(encoder->port),
> + intel_de_rmw(i915, xelpdp_port_clock_ctl_reg(i915, encoder->port),
> XELPDP_FORWARD_CLOCK_UNGATE, 0);
>
> intel_cx0_phy_transaction_end(encoder, wakeref);
> @@ -2918,11 +2921,11 @@ static void intel_mtl_tbt_pll_disable(struct
> intel_encoder *encoder)
> /*
> * 2. Set PORT_CLOCK_CTL register TBT CLOCK Request to "0" to disable
> PLL.
> */
> - intel_de_rmw(i915, XELPDP_PORT_CLOCK_CTL(encoder->port),
> + intel_de_rmw(i915, xelpdp_port_clock_ctl_reg(i915, encoder->port),
> XELPDP_TBT_CLOCK_REQUEST, 0);
>
> /* 3. Poll on PORT_CLOCK_CTL TBT CLOCK Ack == "0". */
> - if (__intel_de_wait_for_register(i915,
> XELPDP_PORT_CLOCK_CTL(encoder->port),
> + if (__intel_de_wait_for_register(i915, xelpdp_port_clock_ctl_reg(i915,
> encoder->port),
> XELPDP_TBT_CLOCK_ACK, 0, 10, 0, NULL))
> drm_warn(&i915->drm, "[ENCODER:%d:%s][%c] PHY PLL not unlocked
> after 10us.\n",
> encoder->base.base.id, encoder->base.name,
> phy_name(phy));
> @@ -2935,7 +2938,7 @@ static void intel_mtl_tbt_pll_disable(struct
> intel_encoder *encoder)
> /*
> * 5. Program PORT CLOCK CTRL register to disable and gate clocks
> */
> - intel_de_rmw(i915, XELPDP_PORT_CLOCK_CTL(encoder->port),
> + intel_de_rmw(i915, xelpdp_port_clock_ctl_reg(i915, encoder->port),
> XELPDP_DDI_CLOCK_SELECT_MASK |
> XELPDP_FORWARD_CLOCK_UNGATE, 0);
>
> 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 cb5d1be2ba19..4b5b9a97142d 100644
> --- a/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h
> +++ b/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h
> @@ -6,13 +6,15 @@
> #ifndef __INTEL_CX0_PHY_REGS_H__
> #define __INTEL_CX0_PHY_REGS_H__
>
> +#include "i915_drv.h"
> #include "i915_reg_defs.h"
> +#include "intel_display_limits.h"
>
> #define _XELPDP_PORT_M2P_MSGBUS_CTL_LN0_A 0x64040
> #define _XELPDP_PORT_M2P_MSGBUS_CTL_LN0_B 0x64140
> #define _XELPDP_PORT_M2P_MSGBUS_CTL_LN0_USBC1 0x16F240
> #define _XELPDP_PORT_M2P_MSGBUS_CTL_LN0_USBC2 0x16F440
> -#define XELPDP_PORT_M2P_MSGBUS_CTL(port, lane)
> _MMIO(_PICK_EVEN_2RANGES(port, PORT_TC1, \
> +#define XELPDP_PORT_M2P_MSGBUS_CTL(idx, lane)
> _MMIO(_PICK_EVEN_2RANGES(idx, PORT_TC1, \
>
> _XELPDP_PORT_M2P_MSGBUS_CTL_LN0_A, \
>
> _XELPDP_PORT_M2P_MSGBUS_CTL_LN0_B, \
>
> _XELPDP_PORT_M2P_MSGBUS_CTL_LN0_USBC1, \
> @@ -27,7 +29,7 @@
> #define XELPDP_PORT_M2P_TRANSACTION_RESET REG_BIT(15)
> #define XELPDP_PORT_M2P_ADDRESS_MASK REG_GENMASK(11,
> 0)
> #define XELPDP_PORT_M2P_ADDRESS(val)
> REG_FIELD_PREP(XELPDP_PORT_M2P_ADDRESS_MASK, val)
> -#define XELPDP_PORT_P2M_MSGBUS_STATUS(port, lane)
> _MMIO(_PICK_EVEN_2RANGES(port, PORT_TC1, \
> +#define XELPDP_PORT_P2M_MSGBUS_STATUS(idx, lane)
> _MMIO(_PICK_EVEN_2RANGES(idx, PORT_TC1, \
>
> _XELPDP_PORT_M2P_MSGBUS_CTL_LN0_A, \
>
> _XELPDP_PORT_M2P_MSGBUS_CTL_LN0_B, \
>
> _XELPDP_PORT_M2P_MSGBUS_CTL_LN0_USBC1, \
> @@ -54,7 +56,7 @@
> #define _XELPDP_PORT_BUF_CTL1_LN0_B 0x64104
> #define _XELPDP_PORT_BUF_CTL1_LN0_USBC1 0x16F200
> #define _XELPDP_PORT_BUF_CTL1_LN0_USBC2 0x16F400
> -#define XELPDP_PORT_BUF_CTL1(port)
> _MMIO(_PICK_EVEN_2RANGES(port, PORT_TC1, \
> +#define XELPDP_PORT_BUF_CTL1(idx)
> _MMIO(_PICK_EVEN_2RANGES(idx, PORT_TC1, \
>
> _XELPDP_PORT_BUF_CTL1_LN0_A, \
>
> _XELPDP_PORT_BUF_CTL1_LN0_B, \
>
> _XELPDP_PORT_BUF_CTL1_LN0_USBC1, \
> @@ -75,7 +77,7 @@
> #define XELPDP_PORT_WIDTH_MASK REG_GENMASK(3, 1)
> #define XELPDP_PORT_WIDTH(val)
> REG_FIELD_PREP(XELPDP_PORT_WIDTH_MASK, val)
>
> -#define XELPDP_PORT_BUF_CTL2(port)
> _MMIO(_PICK_EVEN_2RANGES(port, PORT_TC1, \
> +#define XELPDP_PORT_BUF_CTL2(idx)
> _MMIO(_PICK_EVEN_2RANGES(idx, PORT_TC1, \
>
> _XELPDP_PORT_BUF_CTL1_LN0_A, \
>
> _XELPDP_PORT_BUF_CTL1_LN0_B, \
>
> _XELPDP_PORT_BUF_CTL1_LN0_USBC1, \
> @@ -95,7 +97,7 @@
> #define XELPDP_POWER_STATE_READY_MASK REG_GENMASK(7,
> 4)
> #define XELPDP_POWER_STATE_READY(val)
> REG_FIELD_PREP(XELPDP_POWER_STATE_READY_MASK, val)
>
> -#define XELPDP_PORT_BUF_CTL3(port)
> _MMIO(_PICK_EVEN_2RANGES(port, PORT_TC1, \
> +#define XELPDP_PORT_BUF_CTL3(idx)
> _MMIO(_PICK_EVEN_2RANGES(idx, PORT_TC1, \
>
> _XELPDP_PORT_BUF_CTL1_LN0_A, \
>
> _XELPDP_PORT_BUF_CTL1_LN0_B, \
>
> _XELPDP_PORT_BUF_CTL1_LN0_USBC1, \
> @@ -114,7 +116,7 @@
> #define _XELPDP_PORT_CLOCK_CTL_B 0x641E0
> #define _XELPDP_PORT_CLOCK_CTL_USBC1 0x16F260
> #define _XELPDP_PORT_CLOCK_CTL_USBC2 0x16F460
> -#define XELPDP_PORT_CLOCK_CTL(port)
> _MMIO(_PICK_EVEN_2RANGES(port, PORT_TC1, \
> +#define XELPDP_PORT_CLOCK_CTL(idx)
> _MMIO(_PICK_EVEN_2RANGES(idx, PORT_TC1, \
>
> _XELPDP_PORT_CLOCK_CTL_A, \
>
> _XELPDP_PORT_CLOCK_CTL_B, \
>
> _XELPDP_PORT_CLOCK_CTL_USBC1, \
> @@ -271,4 +273,61 @@
> #define HDMI_DIV_MASK REG_GENMASK16(2, 0)
> #define HDMI_DIV(val) REG_FIELD_PREP16(HDMI_DIV_MASK, val)
>
> +/*
> + * All registers are in the same IP, with a single range. However the
> registers
> + * for TC_PORT come first.
> + */
> +static inline enum port xe2lpd_port_idx(enum port port)
> +{
> + return port >= PORT_TC1 ? port : PORT_TC4 + 1 + port - PORT_A;
> +}
Somewhat confusing, but this is still the cleanest way to implement it
that I can think of. I guess the most unintuitive part here is that the
index handling above ensures (correctly) that for Xe2 the result always
falls in the upper range of the _PICK_EVEN_2RANGES() macro. Maybe we
should mention that to help make the logic more understandable? Up to
you.
> +
> +static inline i915_reg_t xelpdp_port_clock_ctl_reg(struct drm_i915_private
> *i915,
> + enum port port)
> +{
> + return DISPLAY_VER(i915) >= 20 ?
> + XELPDP_PORT_CLOCK_CTL(xe2lpd_port_idx(port)) :
> + XELPDP_PORT_CLOCK_CTL(port);
> +}
I think there's one instance of XELPDP_PORT_CLOCK_CTL that didn't get
converted to this function in intel_mtl_port_pll_type().
> +
> +static inline i915_reg_t xelpdp_port_buf_ctl3_reg(struct drm_i915_private
> *i915,
> + enum port port)
> +{
> + return DISPLAY_VER(i915) >= 20 ?
> + XELPDP_PORT_BUF_CTL3(xe2lpd_port_idx(port)) :
> + XELPDP_PORT_BUF_CTL3(port);
> +}
> +
> +static inline i915_reg_t xelpdp_port_buf_ctl2_reg(struct drm_i915_private
> *i915,
> + enum port port)
> +{
> + return DISPLAY_VER(i915) >= 20 ?
> + XELPDP_PORT_BUF_CTL2(xe2lpd_port_idx(port)) :
> + XELPDP_PORT_BUF_CTL2(port);
> +}
> +
> +static inline i915_reg_t xelpdp_port_buf_ctl1_reg(struct drm_i915_private
> *i915,
> + enum port port)
> +{
> + return DISPLAY_VER(i915) >= 20 ?
> + XELPDP_PORT_BUF_CTL1(xe2lpd_port_idx(port)) :
> + XELPDP_PORT_BUF_CTL1(port);
> +}
There are several uses of XELPDP_PORT_BUF_CTL1 that didn't get converted
in intel_tc.c and one in intel_ddi.c.
Matt
> +
> +static inline i915_reg_t xelpdp_port_m2p_msgbus_ctl_reg(struct
> drm_i915_private *i915,
> + enum port port, int
> lane)
> +{
> + return DISPLAY_VER(i915) >= 20 ?
> + XELPDP_PORT_M2P_MSGBUS_CTL(xe2lpd_port_idx(port), lane) :
> + XELPDP_PORT_M2P_MSGBUS_CTL(port, lane);
> +}
> +
> +static inline i915_reg_t xelpdp_port_p2m_msgbus_status_reg(struct
> drm_i915_private *i915,
> + enum port port, int
> lane)
> +{
> + return DISPLAY_VER(i915) >= 20 ?
> + XELPDP_PORT_P2M_MSGBUS_STATUS(xe2lpd_port_idx(port), lane) :
> + XELPDP_PORT_P2M_MSGBUS_STATUS(port, lane);
> +}
> +
> #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 3147ed174d83..3587ddc6d8ed 100644
> --- a/drivers/gpu/drm/i915/display/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/display/intel_ddi.c
> @@ -176,7 +176,7 @@ static void mtl_wait_ddi_buf_idle(struct drm_i915_private
> *i915, enum port port)
> int ret;
>
> /* FIXME: find out why Bspec's 100us timeout is too short */
> - ret = wait_for_us((intel_de_read(i915, XELPDP_PORT_BUF_CTL1(port)) &
> + ret = wait_for_us((intel_de_read(i915, xelpdp_port_buf_ctl1_reg(i915,
> port)) &
> XELPDP_PORT_BUF_PHY_IDLE), 10000);
> if (ret)
> drm_err(&i915->drm, "Timeout waiting for DDI BUF %c to get
> idle\n",
> @@ -224,7 +224,9 @@ static void intel_wait_ddi_buf_active(struct
> drm_i915_private *dev_priv,
> }
>
> if (DISPLAY_VER(dev_priv) >= 14)
> - ret = _wait_for(!(intel_de_read(dev_priv,
> XELPDP_PORT_BUF_CTL1(port)) & XELPDP_PORT_BUF_PHY_IDLE),
> + ret = _wait_for(!(intel_de_read(dev_priv,
> +
> xelpdp_port_buf_ctl1_reg(dev_priv, port)) &
> + XELPDP_PORT_BUF_PHY_IDLE),
> timeout_us, 10, 10);
> else
> ret = _wait_for(!(intel_de_read(dev_priv, DDI_BUF_CTL(port)) &
> DDI_BUF_IS_IDLE),
> @@ -2365,7 +2367,7 @@ mtl_ddi_enable_d2d(struct intel_encoder *encoder)
> dig_port->saved_port_bits |= XE2LPD_DDI_BUF_D2D_LINK_ENABLE;
> wait_bits = XE2LPD_DDI_BUF_D2D_LINK_STATE;
> } else {
> - reg = XELPDP_PORT_BUF_CTL1(port);
> + reg = xelpdp_port_buf_ctl1_reg(dev_priv, port);
> set_bits = XELPDP_PORT_BUF_D2D_LINK_ENABLE;
> wait_bits = XELPDP_PORT_BUF_D2D_LINK_STATE;
> }
> @@ -2385,7 +2387,7 @@ static void mtl_port_buf_ctl_program(struct
> intel_encoder *encoder,
> enum port port = encoder->port;
> u32 val;
>
> - val = intel_de_read(i915, XELPDP_PORT_BUF_CTL1(port));
> + val = intel_de_read(i915, xelpdp_port_buf_ctl1_reg(i915, port));
> val &= ~XELPDP_PORT_WIDTH_MASK;
> val |= XELPDP_PORT_WIDTH(mtl_get_port_width(crtc_state->lane_count));
>
> @@ -2398,7 +2400,7 @@ static void mtl_port_buf_ctl_program(struct
> intel_encoder *encoder,
> if (dig_port->saved_port_bits & DDI_BUF_PORT_REVERSAL)
> val |= XELPDP_PORT_REVERSAL;
>
> - intel_de_write(i915, XELPDP_PORT_BUF_CTL1(port), val);
> + intel_de_write(i915, xelpdp_port_buf_ctl1_reg(i915, port), val);
> }
>
> static void mtl_port_buf_ctl_io_selection(struct intel_encoder *encoder)
> @@ -2409,7 +2411,7 @@ static void mtl_port_buf_ctl_io_selection(struct
> intel_encoder *encoder)
>
> val = intel_tc_port_in_tbt_alt_mode(dig_port) ?
> XELPDP_PORT_BUF_IO_SELECT_TBT : 0;
> - intel_de_rmw(i915, XELPDP_PORT_BUF_CTL1(encoder->port),
> + intel_de_rmw(i915, xelpdp_port_buf_ctl1_reg(i915, encoder->port),
> XELPDP_PORT_BUF_IO_SELECT_TBT, val);
> }
>
> @@ -2829,7 +2831,7 @@ mtl_ddi_disable_d2d_link(struct intel_encoder *encoder)
> dig_port->saved_port_bits &= ~XE2LPD_DDI_BUF_D2D_LINK_ENABLE;
> wait_bits = XE2LPD_DDI_BUF_D2D_LINK_STATE;
> } else {
> - reg = XELPDP_PORT_BUF_CTL1(port);
> + reg = xelpdp_port_buf_ctl1_reg(dev_priv, port);
> clr_bits = XELPDP_PORT_BUF_D2D_LINK_ENABLE;
> wait_bits = XELPDP_PORT_BUF_D2D_LINK_STATE;
> }
> @@ -2967,7 +2969,7 @@ static void intel_ddi_post_disable_dp(struct
> intel_atomic_state *state,
>
> /* De-select Thunderbolt */
> if (DISPLAY_VER(dev_priv) >= 14)
> - intel_de_rmw(dev_priv, XELPDP_PORT_BUF_CTL1(encoder->port),
> + intel_de_rmw(dev_priv, xelpdp_port_buf_ctl1_reg(dev_priv,
> encoder->port),
> XELPDP_PORT_BUF_IO_SELECT_TBT, 0);
> }
>
> --
> 2.40.1
>
--
Matt Roper
Graphics Software Engineer
Linux GPU Platform Enablement
Intel Corporation
