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[83.9.31.20]) by smtp.gmail.com with ESMTPSA id k6-20020aa7d8c6000000b00487fc51c532sm1100416eds.33.2023.01.26.10.13.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Jan 2023 10:13:43 -0800 (PST) From: Konrad Dybcio To: linux-arm-msm@vger.kernel.org, andersson@kernel.org, agross@kernel.org, krzysztof.kozlowski@linaro.org Cc: marijn.suijten@somainline.org, Konrad Dybcio , Michael Turquette , Stephen Boyd , linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org Subject: [PATCH v2 2/6] clk: qcom: Add GPU clock controller driver for SM6125 Date: Thu, 26 Jan 2023 19:13:31 +0100 Message-Id: <20230126181335.12970-3-konrad.dybcio@linaro.org> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230126181335.12970-1-konrad.dybcio@linaro.org> References: <20230126181335.12970-1-konrad.dybcio@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org Add support for the GPU clock controller found on SM6125. Signed-off-by: Konrad Dybcio Reviewed-by: Dmitry Baryshkov --- v1 -> v2: - Add "depends on" (Krzysztof) drivers/clk/qcom/Kconfig | 9 + drivers/clk/qcom/Makefile | 1 + drivers/clk/qcom/gpucc-sm6125.c | 444 ++++++++++++++++++++++++++++++++ 3 files changed, 454 insertions(+) create mode 100644 drivers/clk/qcom/gpucc-sm6125.c diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig index ca6c7d2ada6c..4ee1bf151ee2 100644 --- a/drivers/clk/qcom/Kconfig +++ b/drivers/clk/qcom/Kconfig @@ -798,6 +798,15 @@ config SM_GCC_8550 Say Y if you want to use peripheral devices such as UART, SPI, I2C, USB, SD/UFS, PCIe etc. +config SM_GPUCC_6125 + tristate "SM6125 Graphics Clock Controller" + select SM_GCC_6125 + depends on ARM64 || COMPILE_TEST + help + Support for the graphics clock controller on SM6125 devices. + Say Y if you want to support graphics controller devices and + functionality such as 3D graphics. + config SM_GPUCC_6350 tristate "SM6350 Graphics Clock Controller" select SM_GCC_6350 diff --git a/drivers/clk/qcom/Makefile b/drivers/clk/qcom/Makefile index e41ea0efe8c4..14405ccf1992 100644 --- a/drivers/clk/qcom/Makefile +++ b/drivers/clk/qcom/Makefile @@ -112,6 +112,7 @@ obj-$(CONFIG_SM_GCC_8250) += gcc-sm8250.o obj-$(CONFIG_SM_GCC_8350) += gcc-sm8350.o obj-$(CONFIG_SM_GCC_8450) += gcc-sm8450.o obj-$(CONFIG_SM_GCC_8550) += gcc-sm8550.o +obj-$(CONFIG_SM_GPUCC_6125) += gpucc-sm6125.o obj-$(CONFIG_SM_GPUCC_6350) += gpucc-sm6350.o obj-$(CONFIG_SM_GPUCC_8150) += gpucc-sm8150.o obj-$(CONFIG_SM_GPUCC_8250) += gpucc-sm8250.o diff --git a/drivers/clk/qcom/gpucc-sm6125.c b/drivers/clk/qcom/gpucc-sm6125.c new file mode 100644 index 000000000000..34cd8459c121 --- /dev/null +++ b/drivers/clk/qcom/gpucc-sm6125.c @@ -0,0 +1,444 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2019, The Linux Foundation. All rights reserved. + * Copyright (c) 2023, Linaro Limited + */ + +#include +#include +#include +#include + +#include + +#include "clk-alpha-pll.h" +#include "clk-branch.h" +#include "clk-rcg.h" +#include "clk-regmap.h" +#include "clk-regmap-divider.h" +#include "clk-regmap-mux.h" +#include "clk-regmap-phy-mux.h" +#include "gdsc.h" +#include "reset.h" + +#define CX_GMU_CBCR_SLEEP_MASK 0xf +#define CX_GMU_CBCR_SLEEP_SHIFT 4 +#define CX_GMU_CBCR_WAKE_MASK 0xf +#define CX_GMU_CBCR_WAKE_SHIFT 8 + +enum { + DT_BI_TCXO, + DT_GCC_GPU_GPLL0_CLK_SRC, +}; + +enum { + P_BI_TCXO, + P_GPLL0_OUT_MAIN, + P_GPU_CC_PLL0_2X_CLK, + P_GPU_CC_PLL0_OUT_AUX2, + P_GPU_CC_PLL1_OUT_AUX, + P_GPU_CC_PLL1_OUT_AUX2, +}; + +static struct pll_vco gpu_cc_pll_vco[] = { + { 1000000000, 2000000000, 0 }, + { 500000000, 1000000000, 2 }, +}; + +/* 1020MHz configuration */ +static const struct alpha_pll_config gpu_pll0_config = { + .l = 0x35, + .config_ctl_val = 0x4001055b, + .alpha_hi = 0x20, + .alpha = 0x00, + .alpha_en_mask = BIT(24), + .vco_val = 0x0 << 20, + .vco_mask = 0x3 << 20, + .aux2_output_mask = BIT(2), +}; + +/* 930MHz configuration */ +static const struct alpha_pll_config gpu_pll1_config = { + .l = 0x30, + .config_ctl_val = 0x4001055b, + .alpha_hi = 0x70, + .alpha = 0x00, + .alpha_en_mask = BIT(24), + .vco_val = 0x2 << 20, + .vco_mask = 0x3 << 20, + .aux2_output_mask = BIT(2), +}; + +static struct clk_alpha_pll gpu_cc_pll0_out_aux2 = { + .offset = 0x0, + .vco_table = gpu_cc_pll_vco, + .num_vco = ARRAY_SIZE(gpu_cc_pll_vco), + .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_DEFAULT], + .flags = SUPPORTS_DYNAMIC_UPDATE, + .clkr = { + .hw.init = &(struct clk_init_data){ + .name = "gpu_cc_pll0_out_aux2", + .parent_data = &(const struct clk_parent_data) { + .index = DT_BI_TCXO, + }, + .num_parents = 1, + .ops = &clk_alpha_pll_ops, + }, + }, +}; + +static struct clk_alpha_pll gpu_cc_pll1_out_aux2 = { + .offset = 0x100, + .vco_table = gpu_cc_pll_vco, + .num_vco = ARRAY_SIZE(gpu_cc_pll_vco), + .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_DEFAULT], + .flags = SUPPORTS_DYNAMIC_UPDATE, + .clkr = { + .hw.init = &(struct clk_init_data){ + .name = "gpu_cc_pll1_out_aux2", + .parent_data = &(const struct clk_parent_data) { + .index = DT_BI_TCXO, + }, + .num_parents = 1, + .ops = &clk_alpha_pll_ops, + }, + }, +}; + +static const struct parent_map gpu_cc_parent_map_0[] = { + { P_BI_TCXO, 0 }, + { P_GPLL0_OUT_MAIN, 5 }, +}; + +static const struct clk_parent_data gpu_cc_parent_data_0[] = { + { .index = DT_BI_TCXO }, + { .index = DT_GCC_GPU_GPLL0_CLK_SRC }, +}; + +static const struct parent_map gpu_cc_parent_map_1[] = { + { P_BI_TCXO, 0 }, + { P_GPU_CC_PLL0_OUT_AUX2, 2 }, + { P_GPU_CC_PLL1_OUT_AUX2, 4 }, +}; + +static const struct clk_parent_data gpu_cc_parent_data_1[] = { + { .index = DT_BI_TCXO }, + { .hw = &gpu_cc_pll0_out_aux2.clkr.hw }, + { .hw = &gpu_cc_pll1_out_aux2.clkr.hw }, +}; + +static const struct freq_tbl ftbl_gpu_cc_gmu_clk_src[] = { + F(200000000, P_GPLL0_OUT_MAIN, 3, 0, 0), + { } +}; + +static struct clk_rcg2 gpu_cc_gmu_clk_src = { + .cmd_rcgr = 0x1120, + .mnd_width = 0, + .hid_width = 5, + .parent_map = gpu_cc_parent_map_0, + .freq_tbl = ftbl_gpu_cc_gmu_clk_src, + .clkr.hw.init = &(struct clk_init_data){ + .name = "gpu_cc_gmu_clk_src", + .parent_data = gpu_cc_parent_data_0, + .num_parents = ARRAY_SIZE(gpu_cc_parent_data_0), + .ops = &clk_rcg2_shared_ops, + }, +}; + +static const struct freq_tbl ftbl_gpu_cc_gx_gfx3d_clk_src[] = { + F(320000000, P_GPU_CC_PLL1_OUT_AUX2, 2, 0, 0), + F(465000000, P_GPU_CC_PLL1_OUT_AUX2, 2, 0, 0), + F(600000000, P_GPU_CC_PLL0_OUT_AUX2, 2, 0, 0), + F(745000000, P_GPU_CC_PLL0_OUT_AUX2, 2, 0, 0), + F(820000000, P_GPU_CC_PLL0_OUT_AUX2, 2, 0, 0), + F(900000000, P_GPU_CC_PLL0_OUT_AUX2, 2, 0, 0), + F(950000000, P_GPU_CC_PLL0_OUT_AUX2, 2, 0, 0), + { } +}; + +static struct clk_rcg2 gpu_cc_gx_gfx3d_clk_src = { + .cmd_rcgr = 0x101c, + .mnd_width = 0, + .hid_width = 5, + .parent_map = gpu_cc_parent_map_1, + .freq_tbl = ftbl_gpu_cc_gx_gfx3d_clk_src, + .clkr.hw.init = &(struct clk_init_data){ + .name = "gpu_cc_gx_gfx3d_clk_src", + .parent_data = gpu_cc_parent_data_1, + .num_parents = ARRAY_SIZE(gpu_cc_parent_data_1), + .flags = CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE, + .ops = &clk_rcg2_ops, + }, +}; + +static struct clk_branch gpu_cc_crc_ahb_clk = { + .halt_reg = 0x107c, + .halt_check = BRANCH_HALT_DELAY, + .clkr = { + .enable_reg = 0x107c, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "gpu_cc_crc_ahb_clk", + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch gpu_cc_cx_apb_clk = { + .halt_reg = 0x1088, + .halt_check = BRANCH_HALT_DELAY, + .clkr = { + .enable_reg = 0x1088, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "gpu_cc_cx_apb_clk", + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch gpu_cc_gx_gfx3d_clk = { + .halt_reg = 0x1054, + .halt_check = BRANCH_HALT_SKIP, + .clkr = { + .enable_reg = 0x1054, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "gpu_cc_gx_gfx3d_clk", + .parent_data = &(const struct clk_parent_data) { + .hw = &gpu_cc_gx_gfx3d_clk_src.clkr.hw, + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch gpu_cc_cx_gfx3d_clk = { + .halt_reg = 0x10a4, + .halt_check = BRANCH_HALT_DELAY, + .clkr = { + .enable_reg = 0x10a4, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "gpu_cc_cx_gfx3d_clk", + .parent_data = &(const struct clk_parent_data) { + .hw = &gpu_cc_gx_gfx3d_clk.clkr.hw, + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch gpu_cc_cx_gmu_clk = { + .halt_reg = 0x1098, + .halt_check = BRANCH_HALT, + .clkr = { + .enable_reg = 0x1098, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "gpu_cc_cx_gmu_clk", + .parent_data = &(const struct clk_parent_data) { + .hw = &gpu_cc_gmu_clk_src.clkr.hw, + }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch gpu_cc_cx_snoc_dvm_clk = { + .halt_reg = 0x108c, + .halt_check = BRANCH_HALT_DELAY, + .clkr = { + .enable_reg = 0x108c, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "gpu_cc_cx_snoc_dvm_clk", + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch gpu_cc_cxo_aon_clk = { + .halt_reg = 0x1004, + .halt_check = BRANCH_HALT_DELAY, + .clkr = { + .enable_reg = 0x1004, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "gpu_cc_cxo_aon_clk", + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch gpu_cc_cxo_clk = { + .halt_reg = 0x109c, + .halt_check = BRANCH_HALT, + .clkr = { + .enable_reg = 0x109c, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "gpu_cc_cxo_clk", + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch gpu_cc_sleep_clk = { + .halt_reg = 0x1090, + .halt_check = BRANCH_HALT_DELAY, + .clkr = { + .enable_reg = 0x1090, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "gpu_cc_sleep_clk", + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch gpu_cc_ahb_clk = { + .halt_reg = 0x1078, + .halt_check = BRANCH_HALT_DELAY, + .clkr = { + .enable_reg = 0x1078, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "gpu_cc_ahb_clk", + .flags = CLK_IS_CRITICAL, + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch gpu_cc_hlos1_vote_gpu_smmu_clk = { + .halt_reg = 0x5000, + .halt_check = BRANCH_VOTED, + .clkr = { + .enable_reg = 0x5000, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "gpu_cc_hlos1_vote_gpu_smmu_clk", + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct gdsc gpu_cx_gdsc = { + .gdscr = 0x106c, + .gds_hw_ctrl = 0x1540, + .pd = { + .name = "gpu_cx_gdsc", + }, + .pwrsts = PWRSTS_OFF_ON, + .flags = VOTABLE, +}; + +static struct gdsc gpu_gx_gdsc = { + .gdscr = 0x100c, + .pd = { + .name = "gpu_gx_gdsc", + }, + .pwrsts = PWRSTS_OFF_ON, + .flags = VOTABLE, +}; + +static struct clk_regmap *gpu_cc_sm6125_clocks[] = { + [GPU_CC_CRC_AHB_CLK] = &gpu_cc_crc_ahb_clk.clkr, + [GPU_CC_CX_APB_CLK] = &gpu_cc_cx_apb_clk.clkr, + [GPU_CC_CX_GFX3D_CLK] = &gpu_cc_cx_gfx3d_clk.clkr, + [GPU_CC_CX_GMU_CLK] = &gpu_cc_cx_gmu_clk.clkr, + [GPU_CC_CX_SNOC_DVM_CLK] = &gpu_cc_cx_snoc_dvm_clk.clkr, + [GPU_CC_CXO_AON_CLK] = &gpu_cc_cxo_aon_clk.clkr, + [GPU_CC_CXO_CLK] = &gpu_cc_cxo_clk.clkr, + [GPU_CC_GMU_CLK_SRC] = &gpu_cc_gmu_clk_src.clkr, + [GPU_CC_PLL0_OUT_AUX2] = &gpu_cc_pll0_out_aux2.clkr, + [GPU_CC_PLL1_OUT_AUX2] = &gpu_cc_pll1_out_aux2.clkr, + [GPU_CC_SLEEP_CLK] = &gpu_cc_sleep_clk.clkr, + [GPU_CC_GX_GFX3D_CLK] = &gpu_cc_gx_gfx3d_clk.clkr, + [GPU_CC_GX_GFX3D_CLK_SRC] = &gpu_cc_gx_gfx3d_clk_src.clkr, + [GPU_CC_AHB_CLK] = &gpu_cc_ahb_clk.clkr, + [GPU_CC_HLOS1_VOTE_GPU_SMMU_CLK] = &gpu_cc_hlos1_vote_gpu_smmu_clk.clkr, +}; + +static struct gdsc *gpucc_sm6125_gdscs[] = { + [GPU_CX_GDSC] = &gpu_cx_gdsc, + [GPU_GX_GDSC] = &gpu_gx_gdsc, +}; + +static const struct regmap_config gpu_cc_sm6125_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .max_register = 0x9000, + .fast_io = true, +}; + +static const struct qcom_cc_desc gpu_cc_sm6125_desc = { + .config = &gpu_cc_sm6125_regmap_config, + .clks = gpu_cc_sm6125_clocks, + .num_clks = ARRAY_SIZE(gpu_cc_sm6125_clocks), + .gdscs = gpucc_sm6125_gdscs, + .num_gdscs = ARRAY_SIZE(gpucc_sm6125_gdscs), +}; + +static const struct of_device_id gpu_cc_sm6125_match_table[] = { + { .compatible = "qcom,sm6125-gpucc" }, + { } +}; +MODULE_DEVICE_TABLE(of, gpu_cc_sm6125_match_table); + +static int gpu_cc_sm6125_probe(struct platform_device *pdev) +{ + struct regmap *regmap; + unsigned int value, mask; + + regmap = qcom_cc_map(pdev, &gpu_cc_sm6125_desc); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + clk_alpha_pll_configure(&gpu_cc_pll0_out_aux2, regmap, &gpu_pll0_config); + clk_alpha_pll_configure(&gpu_cc_pll1_out_aux2, regmap, &gpu_pll1_config); + + /* Recommended WAKEUP/SLEEP settings for the gpu_cc_cx_gmu_clk */ + mask = CX_GMU_CBCR_WAKE_MASK << CX_GMU_CBCR_WAKE_SHIFT; + mask |= CX_GMU_CBCR_SLEEP_MASK << CX_GMU_CBCR_SLEEP_SHIFT; + value = 0xf << CX_GMU_CBCR_WAKE_SHIFT | 0xf << CX_GMU_CBCR_SLEEP_SHIFT; + regmap_update_bits(regmap, gpu_cc_cx_gmu_clk.clkr.enable_reg, mask, value); + + /* Set up PERIPH/MEM retain on the GPU core clock */ + regmap_update_bits(regmap, gpu_cc_gx_gfx3d_clk.halt_reg, + (BIT(14) | BIT(13)), (BIT(14) | BIT(13))); + + return qcom_cc_really_probe(pdev, &gpu_cc_sm6125_desc, regmap); +} + +static struct platform_driver gpu_cc_sm6125_driver = { + .probe = gpu_cc_sm6125_probe, + .driver = { + .name = "gpucc-sm6125", + .of_match_table = gpu_cc_sm6125_match_table, + }, +}; + +static int __init gpu_cc_sm6125_init(void) +{ + return platform_driver_register(&gpu_cc_sm6125_driver); +} +subsys_initcall(gpu_cc_sm6125_init); + +static void __exit gpu_cc_sm6125_exit(void) +{ + platform_driver_unregister(&gpu_cc_sm6125_driver); +} +module_exit(gpu_cc_sm6125_exit); + +MODULE_DESCRIPTION("QTI GPUCC SM6125 Driver"); +MODULE_LICENSE("GPL");