| /* Copyright (c) 2015-2017, The Linux Foundation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 and |
| * only version 2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #include "sde_hwio.h" |
| #include "sde_hw_catalog.h" |
| #include "sde_hw_top.h" |
| #include "sde_dbg.h" |
| #include "sde_kms.h" |
| |
| #define SSPP_SPARE 0x28 |
| #define UBWC_STATIC 0x144 |
| |
| #define FLD_SPLIT_DISPLAY_CMD BIT(1) |
| #define FLD_SMART_PANEL_FREE_RUN BIT(2) |
| #define FLD_INTF_1_SW_TRG_MUX BIT(4) |
| #define FLD_INTF_2_SW_TRG_MUX BIT(8) |
| #define FLD_TE_LINE_INTER_WATERLEVEL_MASK 0xFFFF |
| |
| #define DANGER_STATUS 0x360 |
| #define SAFE_STATUS 0x364 |
| |
| #define TE_LINE_INTERVAL 0x3F4 |
| |
| #define TRAFFIC_SHAPER_EN BIT(31) |
| #define TRAFFIC_SHAPER_RD_CLIENT(num) (0x030 + (num * 4)) |
| #define TRAFFIC_SHAPER_WR_CLIENT(num) (0x060 + (num * 4)) |
| #define TRAFFIC_SHAPER_FIXPOINT_FACTOR 4 |
| |
| #define MDP_WD_TIMER_0_CTL 0x380 |
| #define MDP_WD_TIMER_0_CTL2 0x384 |
| #define MDP_WD_TIMER_0_LOAD_VALUE 0x388 |
| #define MDP_WD_TIMER_1_CTL 0x390 |
| #define MDP_WD_TIMER_1_CTL2 0x394 |
| #define MDP_WD_TIMER_1_LOAD_VALUE 0x398 |
| #define MDP_WD_TIMER_2_CTL 0x420 |
| #define MDP_WD_TIMER_2_CTL2 0x424 |
| #define MDP_WD_TIMER_2_LOAD_VALUE 0x428 |
| #define MDP_WD_TIMER_3_CTL 0x430 |
| #define MDP_WD_TIMER_3_CTL2 0x434 |
| #define MDP_WD_TIMER_3_LOAD_VALUE 0x438 |
| #define MDP_WD_TIMER_4_CTL 0x440 |
| #define MDP_WD_TIMER_4_CTL2 0x444 |
| #define MDP_WD_TIMER_4_LOAD_VALUE 0x448 |
| |
| #define MDP_TICK_COUNT 16 |
| #define XO_CLK_RATE 19200 |
| #define MS_TICKS_IN_SEC 1000 |
| |
| #define CALCULATE_WD_LOAD_VALUE(fps) \ |
| ((uint32_t)((MS_TICKS_IN_SEC * XO_CLK_RATE)/(MDP_TICK_COUNT * fps))) |
| |
| #define DCE_SEL 0x450 |
| |
| static void sde_hw_setup_split_pipe(struct sde_hw_mdp *mdp, |
| struct split_pipe_cfg *cfg) |
| { |
| struct sde_hw_blk_reg_map *c; |
| u32 upper_pipe = 0; |
| u32 lower_pipe = 0; |
| |
| if (!mdp || !cfg) |
| return; |
| |
| c = &mdp->hw; |
| |
| if (cfg->en) { |
| if (cfg->mode == INTF_MODE_CMD) { |
| lower_pipe = FLD_SPLIT_DISPLAY_CMD; |
| /* interface controlling sw trigger */ |
| if (cfg->intf == INTF_2) |
| lower_pipe |= FLD_INTF_1_SW_TRG_MUX; |
| else |
| lower_pipe |= FLD_INTF_2_SW_TRG_MUX; |
| |
| /* free run */ |
| if (cfg->pp_split_slave != INTF_MAX) |
| lower_pipe = FLD_SMART_PANEL_FREE_RUN; |
| |
| upper_pipe = lower_pipe; |
| } else { |
| if (cfg->intf == INTF_2) { |
| lower_pipe = FLD_INTF_1_SW_TRG_MUX; |
| upper_pipe = FLD_INTF_2_SW_TRG_MUX; |
| } else { |
| lower_pipe = FLD_INTF_2_SW_TRG_MUX; |
| upper_pipe = FLD_INTF_1_SW_TRG_MUX; |
| } |
| } |
| } |
| |
| SDE_REG_WRITE(c, SSPP_SPARE, cfg->split_flush_en ? 0x1 : 0x0); |
| SDE_REG_WRITE(c, SPLIT_DISPLAY_LOWER_PIPE_CTRL, lower_pipe); |
| SDE_REG_WRITE(c, SPLIT_DISPLAY_UPPER_PIPE_CTRL, upper_pipe); |
| SDE_REG_WRITE(c, SPLIT_DISPLAY_EN, cfg->en & 0x1); |
| } |
| |
| static void sde_hw_setup_pp_split(struct sde_hw_mdp *mdp, |
| struct split_pipe_cfg *cfg) |
| { |
| u32 ppb_config = 0x0; |
| u32 ppb_control = 0x0; |
| |
| if (!mdp || !cfg) |
| return; |
| |
| if (cfg->en && cfg->pp_split_slave != INTF_MAX) { |
| ppb_config |= (cfg->pp_split_slave - INTF_0 + 1) << 20; |
| ppb_config |= BIT(16); /* split enable */ |
| ppb_control = BIT(5); /* horz split*/ |
| } |
| if (cfg->pp_split_index) { |
| SDE_REG_WRITE(&mdp->hw, PPB0_CONFIG, 0x0); |
| SDE_REG_WRITE(&mdp->hw, PPB0_CNTL, 0x0); |
| SDE_REG_WRITE(&mdp->hw, PPB1_CONFIG, ppb_config); |
| SDE_REG_WRITE(&mdp->hw, PPB1_CNTL, ppb_control); |
| } else { |
| SDE_REG_WRITE(&mdp->hw, PPB0_CONFIG, ppb_config); |
| SDE_REG_WRITE(&mdp->hw, PPB0_CNTL, ppb_control); |
| SDE_REG_WRITE(&mdp->hw, PPB1_CONFIG, 0x0); |
| SDE_REG_WRITE(&mdp->hw, PPB1_CNTL, 0x0); |
| } |
| } |
| |
| static void sde_hw_setup_cdm_output(struct sde_hw_mdp *mdp, |
| struct cdm_output_cfg *cfg) |
| { |
| struct sde_hw_blk_reg_map *c; |
| u32 out_ctl = 0; |
| |
| if (!mdp || !cfg) |
| return; |
| |
| c = &mdp->hw; |
| |
| if (cfg->wb_en) |
| out_ctl |= BIT(24); |
| else if (cfg->intf_en) |
| out_ctl |= BIT(19); |
| |
| SDE_REG_WRITE(c, MDP_OUT_CTL_0, out_ctl); |
| } |
| |
| static bool sde_hw_setup_clk_force_ctrl(struct sde_hw_mdp *mdp, |
| enum sde_clk_ctrl_type clk_ctrl, bool enable) |
| { |
| struct sde_hw_blk_reg_map *c; |
| u32 reg_off, bit_off; |
| u32 reg_val, new_val; |
| bool clk_forced_on; |
| |
| if (!mdp) |
| return false; |
| |
| c = &mdp->hw; |
| |
| if (clk_ctrl <= SDE_CLK_CTRL_NONE || clk_ctrl >= SDE_CLK_CTRL_MAX) |
| return false; |
| |
| reg_off = mdp->caps->clk_ctrls[clk_ctrl].reg_off; |
| bit_off = mdp->caps->clk_ctrls[clk_ctrl].bit_off; |
| |
| reg_val = SDE_REG_READ(c, reg_off); |
| |
| if (enable) |
| new_val = reg_val | BIT(bit_off); |
| else |
| new_val = reg_val & ~BIT(bit_off); |
| |
| SDE_REG_WRITE(c, reg_off, new_val); |
| wmb(); /* ensure write finished before progressing */ |
| |
| clk_forced_on = !(reg_val & BIT(bit_off)); |
| |
| return clk_forced_on; |
| } |
| |
| |
| static void sde_hw_get_danger_status(struct sde_hw_mdp *mdp, |
| struct sde_danger_safe_status *status) |
| { |
| struct sde_hw_blk_reg_map *c; |
| u32 value; |
| |
| if (!mdp || !status) |
| return; |
| |
| c = &mdp->hw; |
| |
| value = SDE_REG_READ(c, DANGER_STATUS); |
| status->mdp = (value >> 0) & 0x3; |
| status->sspp[SSPP_VIG0] = (value >> 4) & 0x3; |
| status->sspp[SSPP_VIG1] = (value >> 6) & 0x3; |
| status->sspp[SSPP_VIG2] = (value >> 8) & 0x3; |
| status->sspp[SSPP_VIG3] = (value >> 10) & 0x3; |
| status->sspp[SSPP_RGB0] = (value >> 12) & 0x3; |
| status->sspp[SSPP_RGB1] = (value >> 14) & 0x3; |
| status->sspp[SSPP_RGB2] = (value >> 16) & 0x3; |
| status->sspp[SSPP_RGB3] = (value >> 18) & 0x3; |
| status->sspp[SSPP_DMA0] = (value >> 20) & 0x3; |
| status->sspp[SSPP_DMA1] = (value >> 22) & 0x3; |
| status->sspp[SSPP_DMA2] = (value >> 28) & 0x3; |
| status->sspp[SSPP_DMA3] = (value >> 30) & 0x3; |
| status->sspp[SSPP_CURSOR0] = (value >> 24) & 0x3; |
| status->sspp[SSPP_CURSOR1] = (value >> 26) & 0x3; |
| status->wb[WB_0] = 0; |
| status->wb[WB_1] = 0; |
| status->wb[WB_2] = (value >> 2) & 0x3; |
| status->wb[WB_3] = 0; |
| } |
| |
| static void sde_hw_setup_vsync_source(struct sde_hw_mdp *mdp, |
| struct sde_vsync_source_cfg *cfg) |
| { |
| struct sde_hw_blk_reg_map *c; |
| u32 reg, wd_load_value, wd_ctl, wd_ctl2, i; |
| static const u32 pp_offset[PINGPONG_MAX] = {0xC, 0x8, 0x4, 0x13, 0x18}; |
| |
| if (!mdp || !cfg || (cfg->pp_count > ARRAY_SIZE(cfg->ppnumber))) |
| return; |
| |
| c = &mdp->hw; |
| reg = SDE_REG_READ(c, MDP_VSYNC_SEL); |
| for (i = 0; i < cfg->pp_count; i++) { |
| int pp_idx = cfg->ppnumber[i] - PINGPONG_0; |
| if (pp_idx >= ARRAY_SIZE(pp_offset)) |
| continue; |
| |
| reg &= ~(0xf << pp_offset[pp_idx]); |
| reg |= (cfg->vsync_source & 0xf) << pp_offset[pp_idx]; |
| } |
| SDE_REG_WRITE(c, MDP_VSYNC_SEL, reg); |
| |
| if (cfg->vsync_source >= SDE_VSYNC_SOURCE_WD_TIMER_4 && |
| cfg->vsync_source <= SDE_VSYNC_SOURCE_WD_TIMER_0) { |
| switch (cfg->vsync_source) { |
| case SDE_VSYNC_SOURCE_WD_TIMER_4: |
| wd_load_value = MDP_WD_TIMER_4_LOAD_VALUE; |
| wd_ctl = MDP_WD_TIMER_4_CTL; |
| wd_ctl2 = MDP_WD_TIMER_4_CTL2; |
| break; |
| case SDE_VSYNC_SOURCE_WD_TIMER_3: |
| wd_load_value = MDP_WD_TIMER_3_LOAD_VALUE; |
| wd_ctl = MDP_WD_TIMER_3_CTL; |
| wd_ctl2 = MDP_WD_TIMER_3_CTL2; |
| break; |
| case SDE_VSYNC_SOURCE_WD_TIMER_2: |
| wd_load_value = MDP_WD_TIMER_2_LOAD_VALUE; |
| wd_ctl = MDP_WD_TIMER_2_CTL; |
| wd_ctl2 = MDP_WD_TIMER_2_CTL2; |
| break; |
| case SDE_VSYNC_SOURCE_WD_TIMER_1: |
| wd_load_value = MDP_WD_TIMER_1_LOAD_VALUE; |
| wd_ctl = MDP_WD_TIMER_1_CTL; |
| wd_ctl2 = MDP_WD_TIMER_1_CTL2; |
| break; |
| case SDE_VSYNC_SOURCE_WD_TIMER_0: |
| default: |
| wd_load_value = MDP_WD_TIMER_0_LOAD_VALUE; |
| wd_ctl = MDP_WD_TIMER_0_CTL; |
| wd_ctl2 = MDP_WD_TIMER_0_CTL2; |
| break; |
| } |
| |
| if (cfg->is_dummy) { |
| SDE_REG_WRITE(c, wd_ctl2, 0x0); |
| } else { |
| SDE_REG_WRITE(c, wd_load_value, |
| CALCULATE_WD_LOAD_VALUE(cfg->frame_rate)); |
| |
| SDE_REG_WRITE(c, wd_ctl, BIT(0)); /* clear timer */ |
| reg = SDE_REG_READ(c, wd_ctl2); |
| reg |= BIT(8); /* enable heartbeat timer */ |
| reg |= BIT(0); /* enable WD timer */ |
| SDE_REG_WRITE(c, wd_ctl2, reg); |
| } |
| |
| /* make sure that timers are enabled/disabled for vsync state */ |
| wmb(); |
| } |
| } |
| |
| static void sde_hw_get_safe_status(struct sde_hw_mdp *mdp, |
| struct sde_danger_safe_status *status) |
| { |
| struct sde_hw_blk_reg_map *c; |
| u32 value; |
| |
| if (!mdp || !status) |
| return; |
| |
| c = &mdp->hw; |
| |
| value = SDE_REG_READ(c, SAFE_STATUS); |
| status->mdp = (value >> 0) & 0x1; |
| status->sspp[SSPP_VIG0] = (value >> 4) & 0x1; |
| status->sspp[SSPP_VIG1] = (value >> 6) & 0x1; |
| status->sspp[SSPP_VIG2] = (value >> 8) & 0x1; |
| status->sspp[SSPP_VIG3] = (value >> 10) & 0x1; |
| status->sspp[SSPP_RGB0] = (value >> 12) & 0x1; |
| status->sspp[SSPP_RGB1] = (value >> 14) & 0x1; |
| status->sspp[SSPP_RGB2] = (value >> 16) & 0x1; |
| status->sspp[SSPP_RGB3] = (value >> 18) & 0x1; |
| status->sspp[SSPP_DMA0] = (value >> 20) & 0x1; |
| status->sspp[SSPP_DMA1] = (value >> 22) & 0x1; |
| status->sspp[SSPP_DMA2] = (value >> 28) & 0x1; |
| status->sspp[SSPP_DMA3] = (value >> 30) & 0x1; |
| status->sspp[SSPP_CURSOR0] = (value >> 24) & 0x1; |
| status->sspp[SSPP_CURSOR1] = (value >> 26) & 0x1; |
| status->wb[WB_0] = 0; |
| status->wb[WB_1] = 0; |
| status->wb[WB_2] = (value >> 2) & 0x1; |
| status->wb[WB_3] = 0; |
| } |
| |
| static void sde_hw_setup_dce(struct sde_hw_mdp *mdp, u32 dce_sel) |
| { |
| struct sde_hw_blk_reg_map *c; |
| |
| if (!mdp) |
| return; |
| |
| c = &mdp->hw; |
| |
| SDE_REG_WRITE(c, DCE_SEL, dce_sel); |
| } |
| |
| void sde_hw_reset_ubwc(struct sde_hw_mdp *mdp, struct sde_mdss_cfg *m) |
| { |
| struct sde_hw_blk_reg_map c; |
| |
| if (!mdp || !m) |
| return; |
| |
| if (!IS_UBWC_20_SUPPORTED(m->ubwc_version)) |
| return; |
| |
| /* force blk offset to zero to access beginning of register region */ |
| c = mdp->hw; |
| c.blk_off = 0x0; |
| SDE_REG_WRITE(&c, UBWC_STATIC, m->mdp[0].ubwc_static); |
| } |
| |
| static void sde_hw_intf_audio_select(struct sde_hw_mdp *mdp) |
| { |
| struct sde_hw_blk_reg_map *c; |
| |
| if (!mdp) |
| return; |
| |
| c = &mdp->hw; |
| |
| SDE_REG_WRITE(c, HDMI_DP_CORE_SELECT, 0x1); |
| } |
| |
| static void _setup_mdp_ops(struct sde_hw_mdp_ops *ops, |
| unsigned long cap) |
| { |
| ops->setup_split_pipe = sde_hw_setup_split_pipe; |
| ops->setup_pp_split = sde_hw_setup_pp_split; |
| ops->setup_cdm_output = sde_hw_setup_cdm_output; |
| ops->setup_clk_force_ctrl = sde_hw_setup_clk_force_ctrl; |
| ops->get_danger_status = sde_hw_get_danger_status; |
| ops->setup_vsync_source = sde_hw_setup_vsync_source; |
| ops->get_safe_status = sde_hw_get_safe_status; |
| ops->setup_dce = sde_hw_setup_dce; |
| ops->reset_ubwc = sde_hw_reset_ubwc; |
| ops->intf_audio_select = sde_hw_intf_audio_select; |
| } |
| |
| static const struct sde_mdp_cfg *_top_offset(enum sde_mdp mdp, |
| const struct sde_mdss_cfg *m, |
| void __iomem *addr, |
| struct sde_hw_blk_reg_map *b) |
| { |
| int i; |
| |
| if (!m || !addr || !b) |
| return ERR_PTR(-EINVAL); |
| |
| for (i = 0; i < m->mdp_count; i++) { |
| if (mdp == m->mdp[i].id) { |
| b->base_off = addr; |
| b->blk_off = m->mdp[i].base; |
| b->length = m->mdp[i].len; |
| b->hwversion = m->hwversion; |
| b->log_mask = SDE_DBG_MASK_TOP; |
| return &m->mdp[i]; |
| } |
| } |
| |
| return ERR_PTR(-EINVAL); |
| } |
| |
| static struct sde_hw_blk_ops sde_hw_ops = { |
| .start = NULL, |
| .stop = NULL, |
| }; |
| |
| struct sde_hw_mdp *sde_hw_mdptop_init(enum sde_mdp idx, |
| void __iomem *addr, |
| const struct sde_mdss_cfg *m) |
| { |
| struct sde_hw_mdp *mdp; |
| const struct sde_mdp_cfg *cfg; |
| int rc; |
| |
| if (!addr || !m) |
| return ERR_PTR(-EINVAL); |
| |
| mdp = kzalloc(sizeof(*mdp), GFP_KERNEL); |
| if (!mdp) |
| return ERR_PTR(-ENOMEM); |
| |
| cfg = _top_offset(idx, m, addr, &mdp->hw); |
| if (IS_ERR_OR_NULL(cfg)) { |
| kfree(mdp); |
| return ERR_PTR(-EINVAL); |
| } |
| |
| /* |
| * Assign ops |
| */ |
| mdp->idx = idx; |
| mdp->caps = cfg; |
| _setup_mdp_ops(&mdp->ops, mdp->caps->features); |
| |
| rc = sde_hw_blk_init(&mdp->base, SDE_HW_BLK_TOP, idx, &sde_hw_ops); |
| if (rc) { |
| SDE_ERROR("failed to init hw blk %d\n", rc); |
| goto blk_init_error; |
| } |
| |
| sde_dbg_reg_register_dump_range(SDE_DBG_NAME, cfg->name, |
| mdp->hw.blk_off, mdp->hw.blk_off + mdp->hw.length, |
| mdp->hw.xin_id); |
| sde_dbg_set_sde_top_offset(mdp->hw.blk_off); |
| |
| return mdp; |
| |
| blk_init_error: |
| kzfree(mdp); |
| |
| return ERR_PTR(rc); |
| } |
| |
| void sde_hw_mdp_destroy(struct sde_hw_mdp *mdp) |
| { |
| if (mdp) |
| sde_hw_blk_destroy(&mdp->base); |
| kfree(mdp); |
| } |
| |