diff options
Diffstat (limited to 'drivers/media/platform/qcom/iris/iris_vpu3x.c')
| -rw-r--r-- | drivers/media/platform/qcom/iris/iris_vpu3x.c | 473 |
1 files changed, 473 insertions, 0 deletions
diff --git a/drivers/media/platform/qcom/iris/iris_vpu3x.c b/drivers/media/platform/qcom/iris/iris_vpu3x.c new file mode 100644 index 000000000000..339776a0b467 --- /dev/null +++ b/drivers/media/platform/qcom/iris/iris_vpu3x.c @@ -0,0 +1,473 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. + * Copyright (c) 2025 Linaro Ltd + */ + +#include <linux/iopoll.h> +#include <linux/reset.h> + +#include "iris_instance.h" +#include "iris_vpu_common.h" +#include "iris_vpu_register_defines.h" + +#define WRAPPER_TZ_BASE_OFFS 0x000C0000 +#define AON_BASE_OFFS 0x000E0000 +#define AON_MVP_NOC_RESET 0x0001F000 + +#define WRAPPER_DEBUG_BRIDGE_LPI_CONTROL (WRAPPER_BASE_OFFS + 0x54) +#define WRAPPER_DEBUG_BRIDGE_LPI_STATUS (WRAPPER_BASE_OFFS + 0x58) +#define WRAPPER_IRIS_CPU_NOC_LPI_CONTROL (WRAPPER_BASE_OFFS + 0x5C) +#define REQ_POWER_DOWN_PREP BIT(0) +#define WRAPPER_IRIS_CPU_NOC_LPI_STATUS (WRAPPER_BASE_OFFS + 0x60) +#define NOC_LPI_STATUS_DONE BIT(0) /* Indicates the NOC handshake is complete */ +#define NOC_LPI_STATUS_DENY BIT(1) /* Indicates the NOC handshake is denied */ +#define NOC_LPI_STATUS_ACTIVE BIT(2) /* Indicates the NOC is active */ +#define WRAPPER_CORE_CLOCK_CONFIG (WRAPPER_BASE_OFFS + 0x88) +#define CORE_CLK_RUN 0x0 +/* VPU v3.5 */ +#define WRAPPER_IRIS_VCODEC_VPU_WRAPPER_SPARE_0 (WRAPPER_BASE_OFFS + 0x78) + +#define WRAPPER_TZ_CTL_AXI_CLOCK_CONFIG (WRAPPER_TZ_BASE_OFFS + 0x14) +#define CTL_AXI_CLK_HALT BIT(0) +#define CTL_CLK_HALT BIT(1) + +#define WRAPPER_TZ_QNS4PDXFIFO_RESET (WRAPPER_TZ_BASE_OFFS + 0x18) +#define RESET_HIGH BIT(0) + +#define CPU_CS_AHB_BRIDGE_SYNC_RESET (CPU_CS_BASE_OFFS + 0x160) +#define CORE_BRIDGE_SW_RESET BIT(0) +#define CORE_BRIDGE_HW_RESET_DISABLE BIT(1) + +#define CPU_CS_X2RPMH (CPU_CS_BASE_OFFS + 0x168) +#define MSK_SIGNAL_FROM_TENSILICA BIT(0) +#define MSK_CORE_POWER_ON BIT(1) + +#define AON_WRAPPER_MVP_NOC_RESET_REQ (AON_MVP_NOC_RESET + 0x000) +#define VIDEO_NOC_RESET_REQ (BIT(0) | BIT(1)) + +#define AON_WRAPPER_MVP_NOC_RESET_ACK (AON_MVP_NOC_RESET + 0x004) + +#define VCODEC_SS_IDLE_STATUSN (VCODEC_BASE_OFFS + 0x70) + +#define AON_WRAPPER_MVP_NOC_LPI_CONTROL (AON_BASE_OFFS) +#define AON_WRAPPER_MVP_NOC_LPI_STATUS (AON_BASE_OFFS + 0x4) + +#define AON_WRAPPER_MVP_NOC_CORE_SW_RESET (AON_BASE_OFFS + 0x18) +#define SW_RESET BIT(0) +#define AON_WRAPPER_MVP_NOC_CORE_CLK_CONTROL (AON_BASE_OFFS + 0x20) +#define NOC_HALT BIT(0) +#define AON_WRAPPER_SPARE (AON_BASE_OFFS + 0x28) +#define AON_WRAPPER_MVP_VIDEO_CTL_NOC_LPI_CONTROL (AON_BASE_OFFS + 0x2C) +#define AON_WRAPPER_MVP_VIDEO_CTL_NOC_LPI_STATUS (AON_BASE_OFFS + 0x30) + +static bool iris_vpu3x_hw_power_collapsed(struct iris_core *core) +{ + u32 value, pwr_status; + + value = readl(core->reg_base + WRAPPER_CORE_POWER_STATUS); + pwr_status = value & BIT(1); + + return pwr_status ? false : true; +} + +static void iris_vpu3_power_off_hardware(struct iris_core *core) +{ + u32 reg_val = 0, value, i; + int ret; + + if (iris_vpu3x_hw_power_collapsed(core)) + goto disable_power; + + dev_err(core->dev, "video hw is power on\n"); + + value = readl(core->reg_base + WRAPPER_CORE_CLOCK_CONFIG); + if (value) + writel(CORE_CLK_RUN, core->reg_base + WRAPPER_CORE_CLOCK_CONFIG); + + for (i = 0; i < core->iris_platform_data->num_vpp_pipe; i++) { + ret = readl_poll_timeout(core->reg_base + VCODEC_SS_IDLE_STATUSN + 4 * i, + reg_val, reg_val & 0x400000, 2000, 20000); + if (ret) + goto disable_power; + } + + writel(VIDEO_NOC_RESET_REQ, core->reg_base + AON_WRAPPER_MVP_NOC_RESET_REQ); + + ret = readl_poll_timeout(core->reg_base + AON_WRAPPER_MVP_NOC_RESET_ACK, + reg_val, reg_val & 0x3, 200, 2000); + if (ret) + goto disable_power; + + writel(0x0, core->reg_base + AON_WRAPPER_MVP_NOC_RESET_REQ); + + ret = readl_poll_timeout(core->reg_base + AON_WRAPPER_MVP_NOC_RESET_ACK, + reg_val, !(reg_val & 0x3), 200, 2000); + if (ret) + goto disable_power; + + writel(CORE_BRIDGE_SW_RESET | CORE_BRIDGE_HW_RESET_DISABLE, + core->reg_base + CPU_CS_AHB_BRIDGE_SYNC_RESET); + writel(CORE_BRIDGE_HW_RESET_DISABLE, core->reg_base + CPU_CS_AHB_BRIDGE_SYNC_RESET); + writel(0x0, core->reg_base + CPU_CS_AHB_BRIDGE_SYNC_RESET); + +disable_power: + iris_vpu_power_off_hw(core); +} + +static void iris_vpu33_power_off_hardware(struct iris_core *core) +{ + bool handshake_done = false, handshake_busy = false; + u32 reg_val = 0, value, i; + u32 count = 0; + int ret; + + if (iris_vpu3x_hw_power_collapsed(core)) + goto disable_power; + + dev_err(core->dev, "video hw is power on\n"); + + value = readl(core->reg_base + WRAPPER_CORE_CLOCK_CONFIG); + if (value) + writel(CORE_CLK_RUN, core->reg_base + WRAPPER_CORE_CLOCK_CONFIG); + + for (i = 0; i < core->iris_platform_data->num_vpp_pipe; i++) { + ret = readl_poll_timeout(core->reg_base + VCODEC_SS_IDLE_STATUSN + 4 * i, + reg_val, reg_val & 0x400000, 2000, 20000); + if (ret) + goto disable_power; + } + + /* Retry up to 1000 times as recommended by hardware documentation */ + do { + /* set MNoC to low power */ + writel(REQ_POWER_DOWN_PREP, core->reg_base + AON_WRAPPER_MVP_NOC_LPI_CONTROL); + + udelay(15); + + value = readl(core->reg_base + AON_WRAPPER_MVP_NOC_LPI_STATUS); + + handshake_done = value & NOC_LPI_STATUS_DONE; + handshake_busy = value & (NOC_LPI_STATUS_DENY | NOC_LPI_STATUS_ACTIVE); + + if (handshake_done || !handshake_busy) + break; + + writel(0, core->reg_base + AON_WRAPPER_MVP_NOC_LPI_CONTROL); + + udelay(15); + + } while (++count < 1000); + + if (!handshake_done && handshake_busy) + dev_err(core->dev, "LPI handshake timeout\n"); + + ret = readl_poll_timeout(core->reg_base + AON_WRAPPER_MVP_NOC_LPI_STATUS, + reg_val, reg_val & BIT(0), 200, 2000); + if (ret) + goto disable_power; + + writel(0, core->reg_base + AON_WRAPPER_MVP_NOC_LPI_CONTROL); + + writel(CORE_BRIDGE_SW_RESET | CORE_BRIDGE_HW_RESET_DISABLE, + core->reg_base + CPU_CS_AHB_BRIDGE_SYNC_RESET); + writel(CORE_BRIDGE_HW_RESET_DISABLE, core->reg_base + CPU_CS_AHB_BRIDGE_SYNC_RESET); + writel(0x0, core->reg_base + CPU_CS_AHB_BRIDGE_SYNC_RESET); + +disable_power: + iris_vpu_power_off_hw(core); +} + +static int iris_vpu33_power_off_controller(struct iris_core *core) +{ + u32 xo_rst_tbl_size = core->iris_platform_data->controller_rst_tbl_size; + u32 clk_rst_tbl_size = core->iris_platform_data->clk_rst_tbl_size; + u32 val = 0; + int ret; + + writel(MSK_SIGNAL_FROM_TENSILICA | MSK_CORE_POWER_ON, core->reg_base + CPU_CS_X2RPMH); + + writel(REQ_POWER_DOWN_PREP, core->reg_base + WRAPPER_IRIS_CPU_NOC_LPI_CONTROL); + + ret = readl_poll_timeout(core->reg_base + WRAPPER_IRIS_CPU_NOC_LPI_STATUS, + val, val & BIT(0), 200, 2000); + if (ret) + goto disable_power; + + writel(0x0, core->reg_base + WRAPPER_DEBUG_BRIDGE_LPI_CONTROL); + + ret = readl_poll_timeout(core->reg_base + WRAPPER_DEBUG_BRIDGE_LPI_STATUS, + val, val == 0, 200, 2000); + if (ret) + goto disable_power; + + writel(CTL_AXI_CLK_HALT | CTL_CLK_HALT, + core->reg_base + WRAPPER_TZ_CTL_AXI_CLOCK_CONFIG); + writel(RESET_HIGH, core->reg_base + WRAPPER_TZ_QNS4PDXFIFO_RESET); + writel(0x0, core->reg_base + WRAPPER_TZ_QNS4PDXFIFO_RESET); + writel(0x0, core->reg_base + WRAPPER_TZ_CTL_AXI_CLOCK_CONFIG); + + reset_control_bulk_reset(clk_rst_tbl_size, core->resets); + + /* Disable MVP NoC clock */ + val = readl(core->reg_base + AON_WRAPPER_MVP_NOC_CORE_CLK_CONTROL); + val |= NOC_HALT; + writel(val, core->reg_base + AON_WRAPPER_MVP_NOC_CORE_CLK_CONTROL); + + /* enable MVP NoC reset */ + val = readl(core->reg_base + AON_WRAPPER_MVP_NOC_CORE_SW_RESET); + val |= SW_RESET; + writel(val, core->reg_base + AON_WRAPPER_MVP_NOC_CORE_SW_RESET); + + /* poll AON spare register bit0 to become zero with 50ms timeout */ + ret = readl_poll_timeout(core->reg_base + AON_WRAPPER_SPARE, + val, (val & BIT(0)) == 0, 1000, 50000); + if (ret) + goto disable_power; + + /* enable bit(1) to avoid cvp noc xo reset */ + val = readl(core->reg_base + AON_WRAPPER_SPARE); + val |= BIT(1); + writel(val, core->reg_base + AON_WRAPPER_SPARE); + + reset_control_bulk_assert(xo_rst_tbl_size, core->controller_resets); + + /* De-assert MVP NoC reset */ + val = readl(core->reg_base + AON_WRAPPER_MVP_NOC_CORE_SW_RESET); + val &= ~SW_RESET; + writel(val, core->reg_base + AON_WRAPPER_MVP_NOC_CORE_SW_RESET); + + usleep_range(80, 100); + + reset_control_bulk_deassert(xo_rst_tbl_size, core->controller_resets); + + /* reset AON spare register */ + writel(0, core->reg_base + AON_WRAPPER_SPARE); + + /* Enable MVP NoC clock */ + val = readl(core->reg_base + AON_WRAPPER_MVP_NOC_CORE_CLK_CONTROL); + val &= ~NOC_HALT; + writel(val, core->reg_base + AON_WRAPPER_MVP_NOC_CORE_CLK_CONTROL); + + iris_disable_unprepare_clock(core, IRIS_CTRL_CLK); + +disable_power: + iris_disable_power_domains(core, core->pmdomain_tbl->pd_devs[IRIS_CTRL_POWER_DOMAIN]); + iris_disable_unprepare_clock(core, IRIS_AXI_CLK); + + return 0; +} + +static int iris_vpu35_power_on_hw(struct iris_core *core) +{ + int ret; + + ret = iris_enable_power_domains(core, core->pmdomain_tbl->pd_devs[IRIS_HW_POWER_DOMAIN]); + if (ret) + return ret; + + ret = iris_prepare_enable_clock(core, IRIS_AXI_CLK); + if (ret) + goto err_disable_power; + + ret = iris_prepare_enable_clock(core, IRIS_HW_FREERUN_CLK); + if (ret) + goto err_disable_axi_clk; + + ret = iris_prepare_enable_clock(core, IRIS_HW_CLK); + if (ret) + goto err_disable_hw_free_clk; + + ret = dev_pm_genpd_set_hwmode(core->pmdomain_tbl->pd_devs[IRIS_HW_POWER_DOMAIN], true); + if (ret) + goto err_disable_hw_clk; + + return 0; + +err_disable_hw_clk: + iris_disable_unprepare_clock(core, IRIS_HW_CLK); +err_disable_hw_free_clk: + iris_disable_unprepare_clock(core, IRIS_HW_FREERUN_CLK); +err_disable_axi_clk: + iris_disable_unprepare_clock(core, IRIS_AXI_CLK); +err_disable_power: + iris_disable_power_domains(core, core->pmdomain_tbl->pd_devs[IRIS_HW_POWER_DOMAIN]); + + return ret; +} + +static void iris_vpu35_power_off_hw(struct iris_core *core) +{ + iris_vpu33_power_off_hardware(core); + + iris_disable_unprepare_clock(core, IRIS_HW_FREERUN_CLK); + iris_disable_unprepare_clock(core, IRIS_AXI_CLK); +} + +static int iris_vpu35_power_off_controller(struct iris_core *core) +{ + u32 clk_rst_tbl_size = core->iris_platform_data->clk_rst_tbl_size; + unsigned int count = 0; + u32 val = 0; + bool handshake_done, handshake_busy; + int ret; + + writel(MSK_SIGNAL_FROM_TENSILICA | MSK_CORE_POWER_ON, core->reg_base + CPU_CS_X2RPMH); + + writel(REQ_POWER_DOWN_PREP, core->reg_base + WRAPPER_IRIS_CPU_NOC_LPI_CONTROL); + + ret = readl_poll_timeout(core->reg_base + WRAPPER_IRIS_CPU_NOC_LPI_STATUS, + val, val & BIT(0), 200, 2000); + if (ret) + goto disable_power; + + writel(0, core->reg_base + WRAPPER_IRIS_CPU_NOC_LPI_CONTROL); + + /* Retry up to 1000 times as recommended by hardware documentation */ + do { + /* set MNoC to low power */ + writel(REQ_POWER_DOWN_PREP, core->reg_base + AON_WRAPPER_MVP_VIDEO_CTL_NOC_LPI_CONTROL); + + udelay(15); + + val = readl(core->reg_base + AON_WRAPPER_MVP_VIDEO_CTL_NOC_LPI_STATUS); + + handshake_done = val & NOC_LPI_STATUS_DONE; + handshake_busy = val & (NOC_LPI_STATUS_DENY | NOC_LPI_STATUS_ACTIVE); + + if (handshake_done || !handshake_busy) + break; + + writel(0, core->reg_base + AON_WRAPPER_MVP_VIDEO_CTL_NOC_LPI_CONTROL); + + udelay(15); + + } while (++count < 1000); + + if (!handshake_done && handshake_busy) + dev_err(core->dev, "LPI handshake timeout\n"); + + ret = readl_poll_timeout(core->reg_base + AON_WRAPPER_MVP_VIDEO_CTL_NOC_LPI_STATUS, + val, val & BIT(0), 200, 2000); + if (ret) + goto disable_power; + + writel(0, core->reg_base + AON_WRAPPER_MVP_VIDEO_CTL_NOC_LPI_CONTROL); + + writel(0, core->reg_base + WRAPPER_DEBUG_BRIDGE_LPI_CONTROL); + + ret = readl_poll_timeout(core->reg_base + WRAPPER_DEBUG_BRIDGE_LPI_STATUS, + val, val == 0, 200, 2000); + if (ret) + goto disable_power; + +disable_power: + iris_disable_unprepare_clock(core, IRIS_CTRL_CLK); + iris_disable_unprepare_clock(core, IRIS_CTRL_FREERUN_CLK); + iris_disable_unprepare_clock(core, IRIS_AXI1_CLK); + + iris_disable_power_domains(core, core->pmdomain_tbl->pd_devs[IRIS_CTRL_POWER_DOMAIN]); + + reset_control_bulk_reset(clk_rst_tbl_size, core->resets); + + return 0; +} + +static int iris_vpu35_power_on_controller(struct iris_core *core) +{ + int ret; + + ret = iris_enable_power_domains(core, core->pmdomain_tbl->pd_devs[IRIS_CTRL_POWER_DOMAIN]); + if (ret) + return ret; + + ret = iris_prepare_enable_clock(core, IRIS_AXI1_CLK); + if (ret) + goto err_disable_power; + + ret = iris_prepare_enable_clock(core, IRIS_CTRL_FREERUN_CLK); + if (ret) + goto err_disable_axi1_clk; + + ret = iris_prepare_enable_clock(core, IRIS_CTRL_CLK); + if (ret) + goto err_disable_ctrl_free_clk; + + return 0; + +err_disable_ctrl_free_clk: + iris_disable_unprepare_clock(core, IRIS_CTRL_FREERUN_CLK); +err_disable_axi1_clk: + iris_disable_unprepare_clock(core, IRIS_AXI1_CLK); +err_disable_power: + iris_disable_power_domains(core, core->pmdomain_tbl->pd_devs[IRIS_CTRL_POWER_DOMAIN]); + + return ret; +} + +static void iris_vpu35_program_bootup_registers(struct iris_core *core) +{ + writel(0x1, core->reg_base + WRAPPER_IRIS_VCODEC_VPU_WRAPPER_SPARE_0); +} + +static u64 iris_vpu3x_calculate_frequency(struct iris_inst *inst, size_t data_size) +{ + struct platform_inst_caps *caps = inst->core->iris_platform_data->inst_caps; + struct v4l2_format *inp_f = inst->fmt_src; + u32 height, width, mbs_per_second, mbpf; + u64 fw_cycles, fw_vpp_cycles; + u64 vsp_cycles, vpp_cycles; + u32 fps = DEFAULT_FPS; + + width = max(inp_f->fmt.pix_mp.width, inst->crop.width); + height = max(inp_f->fmt.pix_mp.height, inst->crop.height); + + mbpf = NUM_MBS_PER_FRAME(height, width); + mbs_per_second = mbpf * fps; + + fw_cycles = fps * caps->mb_cycles_fw; + fw_vpp_cycles = fps * caps->mb_cycles_fw_vpp; + + vpp_cycles = mult_frac(mbs_per_second, caps->mb_cycles_vpp, (u32)inst->fw_caps[PIPE].value); + /* 21 / 20 is minimum overhead factor */ + vpp_cycles += max(div_u64(vpp_cycles, 20), fw_vpp_cycles); + + /* 1.059 is multi-pipe overhead */ + if (inst->fw_caps[PIPE].value > 1) + vpp_cycles += div_u64(vpp_cycles * 59, 1000); + + vsp_cycles = fps * data_size * 8; + vsp_cycles = div_u64(vsp_cycles, 2); + /* VSP FW overhead 1.05 */ + vsp_cycles = div_u64(vsp_cycles * 21, 20); + + if (inst->fw_caps[STAGE].value == STAGE_1) + vsp_cycles = vsp_cycles * 3; + + return max3(vpp_cycles, vsp_cycles, fw_cycles); +} + +const struct vpu_ops iris_vpu3_ops = { + .power_off_hw = iris_vpu3_power_off_hardware, + .power_on_hw = iris_vpu_power_on_hw, + .power_off_controller = iris_vpu_power_off_controller, + .power_on_controller = iris_vpu_power_on_controller, + .calc_freq = iris_vpu3x_calculate_frequency, +}; + +const struct vpu_ops iris_vpu33_ops = { + .power_off_hw = iris_vpu33_power_off_hardware, + .power_on_hw = iris_vpu_power_on_hw, + .power_off_controller = iris_vpu33_power_off_controller, + .power_on_controller = iris_vpu_power_on_controller, + .calc_freq = iris_vpu3x_calculate_frequency, +}; + +const struct vpu_ops iris_vpu35_ops = { + .power_off_hw = iris_vpu35_power_off_hw, + .power_on_hw = iris_vpu35_power_on_hw, + .power_off_controller = iris_vpu35_power_off_controller, + .power_on_controller = iris_vpu35_power_on_controller, + .program_bootup_registers = iris_vpu35_program_bootup_registers, + .calc_freq = iris_vpu3x_calculate_frequency, +}; 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