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[78.88.45.141]) by smtp.gmail.com with ESMTPSA id z2-20020a1709060be200b00a45f2dc6795sm5702733ejg.137.2024.03.27.11.09.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 27 Mar 2024 11:09:14 -0700 (PDT) From: Konrad Dybcio Date: Wed, 27 Mar 2024 19:08:53 +0100 Subject: [PATCH v3 15/19] media: venus: pm_helpers: Simplify vcodec clock handling Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20230911-topic-mars-v3-15-79f23b81c261@linaro.org> References: <20230911-topic-mars-v3-0-79f23b81c261@linaro.org> In-Reply-To: <20230911-topic-mars-v3-0-79f23b81c261@linaro.org> To: Stanimir Varbanov , Vikash Garodia , Bryan O'Donoghue , Andy Gross , Bjorn Andersson , Mauro Carvalho Chehab , Dikshita Agarwal , Philipp Zabel Cc: Marijn Suijten , Stanimir Varbanov , Mauro Carvalho Chehab , linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, Konrad Dybcio X-Mailer: b4 0.12.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1711562924; l=13981; i=konrad.dybcio@linaro.org; s=20230215; h=from:subject:message-id; bh=afMiBrFoHhRzer2cqmqFzs4ZW0H+P1izDB/I0qvx+go=; b=DL6uk51sRVqRvs/kCIzEnj6XcH/3HNCesxKFi0Bld1sSHdQ+HCYGYwjdglU2ECFgHYNmxbdtP 5/flOoziTmsCEsi6PKUTHZesB/TupkfohJuFrO04dq+ogk6Qf/VBk8z X-Developer-Key: i=konrad.dybcio@linaro.org; a=ed25519; pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms= Currently the infrastructure is set up for vast expandability, but it's far too complex for what is just 0-2 clocks. Categorize the clocks and simplify their getting. One notable change is that vcodec clocks are switched to use devm_clk_get_optional, which will let us commonize the code further while leaving the burden of figuring out which SoCs need codec-specific clocks and which don't to the bindings checker. Signed-off-by: Konrad Dybcio --- drivers/media/platform/qcom/venus/core.c | 18 ---- drivers/media/platform/qcom/venus/core.h | 13 ++- drivers/media/platform/qcom/venus/pm_helpers.c | 129 +++++++++++++------------ 3 files changed, 71 insertions(+), 89 deletions(-) diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c index e61aa863b7f7..1f4a86b1bd73 100644 --- a/drivers/media/platform/qcom/venus/core.c +++ b/drivers/media/platform/qcom/venus/core.c @@ -581,9 +581,6 @@ static const struct venus_resources msm8996_res = { .reg_tbl_size = ARRAY_SIZE(msm8996_reg_preset), .clks = {"core", "iface", "bus", "mbus" }, .clks_num = 4, - .vcodec0_clks = { "core" }, - .vcodec1_clks = { "core" }, - .vcodec_clks_num = 1, .max_load = 2563200, .hfi_version = HFI_VERSION_3XX, .dma_mask = (GENMASK(31, 30) | GENMASK(28, 26) | GENMASK(24, 22)) - 1, @@ -636,9 +633,6 @@ static const struct venus_resources sdm660_res = { .bw_tbl_dec_size = ARRAY_SIZE(sdm660_bw_table_dec), .clks = {"core", "iface", "bus", "bus_throttle" }, .clks_num = 4, - .vcodec0_clks = { "vcodec0_core" }, - .vcodec1_clks = { "vcodec0_core" }, - .vcodec_clks_num = 1, .max_load = 1036800, .hfi_version = HFI_VERSION_3XX, .cp_size = 0x79000000, @@ -680,9 +674,6 @@ static const struct venus_resources sdm845_res = { .bw_tbl_dec_size = ARRAY_SIZE(sdm845_bw_table_dec), .clks = {"core", "iface", "bus" }, .clks_num = 3, - .vcodec0_clks = { "core", "bus" }, - .vcodec1_clks = { "core", "bus" }, - .vcodec_clks_num = 2, .max_load = 3110400, /* 4096x2160@90 */ .hfi_version = HFI_VERSION_4XX, .vpu_version = VPU_VERSION_AR50, @@ -699,9 +690,6 @@ static const struct venus_resources sdm845_res_v2 = { .bw_tbl_dec_size = ARRAY_SIZE(sdm845_bw_table_dec), .clks = {"core", "iface", "bus" }, .clks_num = 3, - .vcodec0_clks = { "vcodec0_core", "vcodec0_bus" }, - .vcodec1_clks = { "vcodec1_core", "vcodec1_bus" }, - .vcodec_clks_num = 2, .vcodec_pmdomains = (const char *[]) { "venus", "vcodec0", "vcodec1" }, .vcodec_pmdomains_num = 3, .opp_pmdomain = pd_names_cx, @@ -744,8 +732,6 @@ static const struct venus_resources sc7180_res = { .bw_tbl_dec_size = ARRAY_SIZE(sc7180_bw_table_dec), .clks = {"core", "iface", "bus" }, .clks_num = 3, - .vcodec0_clks = { "vcodec0_core", "vcodec0_bus" }, - .vcodec_clks_num = 2, .vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" }, .vcodec_pmdomains_num = 2, .opp_pmdomain = pd_names_cx, @@ -796,8 +782,6 @@ static const struct venus_resources sm8250_res = { .clks_num = 2, .resets = { "bus", "core" }, .resets_num = 2, - .vcodec0_clks = { "vcodec0_core" }, - .vcodec_clks_num = 1, .vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" }, .vcodec_pmdomains_num = 2, .opp_pmdomain = pd_names_mx, @@ -851,8 +835,6 @@ static const struct venus_resources sc7280_res = { .ubwc_conf = &sc7280_ubwc_config, .clks = {"core", "bus", "iface"}, .clks_num = 3, - .vcodec0_clks = {"vcodec_core", "vcodec_bus"}, - .vcodec_clks_num = 2, .vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" }, .vcodec_pmdomains_num = 2, .opp_pmdomain = pd_names_cx, diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h index 19908f028441..b4c41dc0f8c7 100644 --- a/drivers/media/platform/qcom/venus/core.h +++ b/drivers/media/platform/qcom/venus/core.h @@ -24,9 +24,10 @@ #define VDBGFW "VenusFW : " #define VIDC_CLKS_NUM_MAX 4 -#define VIDC_VCODEC_CLKS_NUM_MAX 2 #define VIDC_RESETS_NUM_MAX 2 +#define MAX_NUM_VCODECS 2 + extern int venus_fw_debug; struct freq_tbl { @@ -68,8 +69,6 @@ struct venus_resources { const struct hfi_ubwc_config *ubwc_conf; const char * const clks[VIDC_CLKS_NUM_MAX]; unsigned int clks_num; - const char * const vcodec0_clks[VIDC_VCODEC_CLKS_NUM_MAX]; - const char * const vcodec1_clks[VIDC_VCODEC_CLKS_NUM_MAX]; unsigned int vcodec_clks_num; const char **vcodec_pmdomains; unsigned int vcodec_pmdomains_num; @@ -123,8 +122,8 @@ struct venus_format { * @aon_base: AON base address * @irq: Venus irq * @clks: an array of struct clk pointers - * @vcodec0_clks: an array of vcodec0 struct clk pointers - * @vcodec1_clks: an array of vcodec1 struct clk pointers + * @vcodec_core_clks: an array of codec core clk pointers + * @vcodec_bus_clks: an array of codec bus clk pointers * @video_path: an interconnect handle to video to/from memory path * @cpucfg_path: an interconnect handle to cpu configuration path * @has_opp_table: does OPP table exist @@ -176,8 +175,8 @@ struct venus_core { void __iomem *aon_base; int irq; struct clk *clks[VIDC_CLKS_NUM_MAX]; - struct clk *vcodec0_clks[VIDC_VCODEC_CLKS_NUM_MAX]; - struct clk *vcodec1_clks[VIDC_VCODEC_CLKS_NUM_MAX]; + struct clk *vcodec_core_clks[MAX_NUM_VCODECS]; + struct clk *vcodec_bus_clks[MAX_NUM_VCODECS]; struct icc_path *video_path; struct icc_path *cpucfg_path; bool has_opp_table; diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c index d717e150b34f..583153bbb74e 100644 --- a/drivers/media/platform/qcom/venus/pm_helpers.c +++ b/drivers/media/platform/qcom/venus/pm_helpers.c @@ -110,67 +110,74 @@ static void core_clks_disable(struct venus_core *core) static int core_clks_set_rate(struct venus_core *core, unsigned long freq) { - int ret; + int i, ret; ret = dev_pm_opp_set_rate(core->dev, freq); if (ret) return ret; - ret = clk_set_rate(core->vcodec0_clks[0], freq); - if (ret) - return ret; - - ret = clk_set_rate(core->vcodec1_clks[0], freq); - if (ret) - return ret; + for (i = 0; i < MAX_NUM_VCODECS; i++) { + ret = clk_set_rate(core->vcodec_core_clks[i], freq); + if (ret) + return ret; + } return 0; } -static int vcodec_clks_get(struct venus_core *core, struct device *dev, - struct clk **clks, const char * const *id) +static int vcodec_clks_get(struct venus_core *core, struct device *dev, u8 id) { - const struct venus_resources *res = core->res; - unsigned int i; + char buf[13] = { 0 }; /* vcodecX_core\0 */ - for (i = 0; i < res->vcodec_clks_num; i++) { - if (!id[i]) - continue; - clks[i] = devm_clk_get(dev, id[i]); - if (IS_ERR(clks[i])) - return PTR_ERR(clks[i]); + /* Best we can do is 2 cores */ + if (id > MAX_NUM_VCODECS - 1) { + dev_err(dev, "Got impossible vcodec id %u\n", id); + return -EINVAL; + }; + + snprintf(buf, sizeof(buf), "vcodec%u_core", id); + + /* First try the non-legacy name */ + core->vcodec_core_clks[id] = devm_clk_get_optional(dev, buf); + if (IS_ERR(core->vcodec_core_clks[id])) { + /* Try again, with the legacy name */ + core->vcodec_core_clks[id] = devm_clk_get_optional(dev, "core"); + if (IS_ERR(core->vcodec_core_clks[id])) + return PTR_ERR(core->vcodec_core_clks[id]); + } + + memset(buf, 0, sizeof(buf)); + snprintf(buf, sizeof(buf), "vcodec%u_bus", id); + + core->vcodec_bus_clks[id] = devm_clk_get_optional(dev, buf); + if (IS_ERR(core->vcodec_bus_clks[id])) { + core->vcodec_bus_clks[id] = devm_clk_get_optional(dev, "bus"); + if (IS_ERR(core->vcodec_bus_clks[id])) + return PTR_ERR(core->vcodec_bus_clks[id]); } return 0; } -static int vcodec_clks_enable(struct venus_core *core, struct clk **clks) +static int vcodec_clks_enable(struct venus_core *core, u8 id) { - const struct venus_resources *res = core->res; - unsigned int i; int ret; - for (i = 0; i < res->vcodec_clks_num; i++) { - ret = clk_prepare_enable(clks[i]); - if (ret) - goto err; - } + ret = clk_prepare_enable(core->vcodec_core_clks[id]); + if (ret) + return ret; - return 0; -err: - while (i--) - clk_disable_unprepare(clks[i]); + ret = clk_prepare_enable(core->vcodec_bus_clks[id]); + if (ret) + clk_disable_unprepare(core->vcodec_core_clks[id]); return ret; } -static void vcodec_clks_disable(struct venus_core *core, struct clk **clks) +static void vcodec_clks_disable(struct venus_core *core, u8 id) { - const struct venus_resources *res = core->res; - unsigned int i = res->vcodec_clks_num; - - while (i--) - clk_disable_unprepare(clks[i]); + clk_disable_unprepare(core->vcodec_bus_clks[id]); + clk_disable_unprepare(core->vcodec_core_clks[id]); } static u32 load_per_instance(struct venus_inst *inst) @@ -343,8 +350,7 @@ static int vdec_get_v3(struct device *dev) { struct venus_core *core = dev_get_drvdata(dev); - return vcodec_clks_get(core, dev, core->vcodec0_clks, - core->res->vcodec0_clks); + return vcodec_clks_get(core, dev, 0); } static int vdec_power_v3(struct device *dev, int on) @@ -355,9 +361,9 @@ static int vdec_power_v3(struct device *dev, int on) vcodec_control_v3(core, VIDC_SESSION_TYPE_DEC, true); if (on == POWER_ON) - ret = vcodec_clks_enable(core, core->vcodec0_clks); + ret = vcodec_clks_enable(core, 0); else - vcodec_clks_disable(core, core->vcodec0_clks); + vcodec_clks_disable(core, 0); vcodec_control_v3(core, VIDC_SESSION_TYPE_DEC, false); @@ -368,8 +374,7 @@ static int venc_get_v3(struct device *dev) { struct venus_core *core = dev_get_drvdata(dev); - return vcodec_clks_get(core, dev, core->vcodec1_clks, - core->res->vcodec1_clks); + return vcodec_clks_get(core, dev, 1); } static int venc_power_v3(struct device *dev, int on) @@ -380,9 +385,9 @@ static int venc_power_v3(struct device *dev, int on) vcodec_control_v3(core, VIDC_SESSION_TYPE_ENC, true); if (on == POWER_ON) - ret = vcodec_clks_enable(core, core->vcodec1_clks); + ret = vcodec_clks_enable(core, 1); else - vcodec_clks_disable(core, core->vcodec1_clks); + vcodec_clks_disable(core, 1); vcodec_control_v3(core, VIDC_SESSION_TYPE_ENC, false); @@ -441,7 +446,7 @@ static int poweroff_coreid(struct venus_core *core, unsigned int coreid_mask) if (ret) return ret; - vcodec_clks_disable(core, core->vcodec0_clks); + vcodec_clks_disable(core, 0); ret = vcodec_control_v4(core, VIDC_CORE_ID_1, false); if (ret) @@ -457,7 +462,7 @@ static int poweroff_coreid(struct venus_core *core, unsigned int coreid_mask) if (ret) return ret; - vcodec_clks_disable(core, core->vcodec1_clks); + vcodec_clks_disable(core, 1); ret = vcodec_control_v4(core, VIDC_CORE_ID_2, false); if (ret) @@ -484,7 +489,7 @@ static int poweron_coreid(struct venus_core *core, unsigned int coreid_mask) if (ret) return ret; - ret = vcodec_clks_enable(core, core->vcodec0_clks); + ret = vcodec_clks_enable(core, 0); if (ret) return ret; @@ -502,7 +507,7 @@ static int poweron_coreid(struct venus_core *core, unsigned int coreid_mask) if (ret) return ret; - ret = vcodec_clks_enable(core, core->vcodec1_clks); + ret = vcodec_clks_enable(core, 1); if (ret) return ret; @@ -763,20 +768,18 @@ static int vdec_get_v4(struct device *dev) if (!legacy_binding) return 0; - return vcodec_clks_get(core, dev, core->vcodec0_clks, - core->res->vcodec0_clks); + return vcodec_clks_get(core, dev, 0); } static void vdec_put_v4(struct device *dev) { struct venus_core *core = dev_get_drvdata(dev); - unsigned int i; if (!legacy_binding) return; - for (i = 0; i < core->res->vcodec_clks_num; i++) - core->vcodec0_clks[i] = NULL; + core->vcodec_core_clks[0] = NULL; + core->vcodec_bus_clks[0] = NULL; } static int vdec_power_v4(struct device *dev, int on) @@ -792,9 +795,9 @@ static int vdec_power_v4(struct device *dev, int on) return ret; if (on == POWER_ON) - ret = vcodec_clks_enable(core, core->vcodec0_clks); + ret = vcodec_clks_enable(core, 0); else - vcodec_clks_disable(core, core->vcodec0_clks); + vcodec_clks_disable(core, 0); vcodec_control_v4(core, VIDC_CORE_ID_1, false); @@ -808,20 +811,18 @@ static int venc_get_v4(struct device *dev) if (!legacy_binding) return 0; - return vcodec_clks_get(core, dev, core->vcodec1_clks, - core->res->vcodec1_clks); + return vcodec_clks_get(core, dev, 1); } static void venc_put_v4(struct device *dev) { struct venus_core *core = dev_get_drvdata(dev); - unsigned int i; if (!legacy_binding) return; - for (i = 0; i < core->res->vcodec_clks_num; i++) - core->vcodec1_clks[i] = NULL; + core->vcodec_core_clks[1] = NULL; + core->vcodec_bus_clks[1] = NULL; } static int venc_power_v4(struct device *dev, int on) @@ -837,9 +838,9 @@ static int venc_power_v4(struct device *dev, int on) return ret; if (on == POWER_ON) - ret = vcodec_clks_enable(core, core->vcodec1_clks); + ret = vcodec_clks_enable(core, 1); else - vcodec_clks_disable(core, core->vcodec1_clks); + vcodec_clks_disable(core, 1); vcodec_control_v4(core, VIDC_CORE_ID_2, false); @@ -934,11 +935,11 @@ static int core_get_v4(struct venus_core *core) dev_info(dev, "%s legacy binding\n", legacy_binding ? "" : "non"); - ret = vcodec_clks_get(core, dev, core->vcodec0_clks, res->vcodec0_clks); + ret = vcodec_clks_get(core, dev, 0); if (ret) return ret; - ret = vcodec_clks_get(core, dev, core->vcodec1_clks, res->vcodec1_clks); + ret = vcodec_clks_get(core, dev, 1); if (ret) return ret;