From: Neil Armstrong Date: Wed, 18 Jan 2023 16:22:41 +0000 (+0100) Subject: remoteproc: qcom_q6v5_pas: add support for dtb co-firmware loading X-Git-Tag: v6.6.17~5415^2~19 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=29814986b82e820ae9d3eb7474cdcf66605bd114;p=platform%2Fkernel%2Flinux-rpi.git remoteproc: qcom_q6v5_pas: add support for dtb co-firmware loading Starting from the SM8550 SoC, starting the aDSP, cDSP and MPSS will require loading a separate "Devicetree" firmware. In order to satisfy the load & authentication order required by the SM8550 SoC, the following is implemented: - "Devicetree" firmware request & load in dedicated memory - Q6V5 prepare - Power Domain & Clocks enable - "Devicetree" firmware authentication - Main firmware load in dedicated memory - Main firmware authentication - Q6V5 startup - "Devicetree" firmware metadata release - Main metadata release When booting older platforms, the "Devicetree" steps would be bypassed and the load & authentication order would still be valid. Signed-off-by: Neil Armstrong Signed-off-by: Bjorn Andersson Link: https://lore.kernel.org/r/20221114-narmstrong-sm8550-upstream-remoteproc-v4-3-54154c08c0b7@linaro.org --- diff --git a/drivers/remoteproc/qcom_q6v5_pas.c b/drivers/remoteproc/qcom_q6v5_pas.c index f95e022..cdd8a1a 100644 --- a/drivers/remoteproc/qcom_q6v5_pas.c +++ b/drivers/remoteproc/qcom_q6v5_pas.c @@ -35,7 +35,9 @@ struct adsp_data { int crash_reason_smem; const char *firmware_name; + const char *dtb_firmware_name; int pas_id; + int dtb_pas_id; unsigned int minidump_id; bool auto_boot; bool decrypt_shutdown; @@ -64,19 +66,28 @@ struct qcom_adsp { int proxy_pd_count; + const char *dtb_firmware_name; int pas_id; + int dtb_pas_id; unsigned int minidump_id; int crash_reason_smem; bool decrypt_shutdown; const char *info_name; + const struct firmware *firmware; + const struct firmware *dtb_firmware; + struct completion start_done; struct completion stop_done; phys_addr_t mem_phys; + phys_addr_t dtb_mem_phys; phys_addr_t mem_reloc; + phys_addr_t dtb_mem_reloc; void *mem_region; + void *dtb_mem_region; size_t mem_size; + size_t dtb_mem_size; struct qcom_rproc_glink glink_subdev; struct qcom_rproc_subdev smd_subdev; @@ -84,6 +95,7 @@ struct qcom_adsp { struct qcom_sysmon *sysmon; struct qcom_scm_pas_metadata pas_metadata; + struct qcom_scm_pas_metadata dtb_pas_metadata; }; static void adsp_minidump(struct rproc *rproc) @@ -158,6 +170,8 @@ static int adsp_unprepare(struct rproc *rproc) * here. */ qcom_scm_pas_metadata_release(&adsp->pas_metadata); + if (adsp->dtb_pas_id) + qcom_scm_pas_metadata_release(&adsp->dtb_pas_metadata); return 0; } @@ -167,20 +181,40 @@ static int adsp_load(struct rproc *rproc, const struct firmware *fw) struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv; int ret; - ret = qcom_mdt_pas_init(adsp->dev, fw, rproc->firmware, adsp->pas_id, - adsp->mem_phys, &adsp->pas_metadata); - if (ret) - return ret; + /* Store firmware handle to be used in adsp_start() */ + adsp->firmware = fw; - ret = qcom_mdt_load_no_init(adsp->dev, fw, rproc->firmware, adsp->pas_id, - adsp->mem_region, adsp->mem_phys, adsp->mem_size, - &adsp->mem_reloc); - if (ret) - return ret; + if (adsp->dtb_pas_id) { + ret = request_firmware(&adsp->dtb_firmware, adsp->dtb_firmware_name, adsp->dev); + if (ret) { + dev_err(adsp->dev, "request_firmware failed for %s: %d\n", + adsp->dtb_firmware_name, ret); + return ret; + } - qcom_pil_info_store(adsp->info_name, adsp->mem_phys, adsp->mem_size); + ret = qcom_mdt_pas_init(adsp->dev, adsp->dtb_firmware, adsp->dtb_firmware_name, + adsp->dtb_pas_id, adsp->dtb_mem_phys, + &adsp->dtb_pas_metadata); + if (ret) + goto release_dtb_firmware; + + ret = qcom_mdt_load_no_init(adsp->dev, adsp->dtb_firmware, adsp->dtb_firmware_name, + adsp->dtb_pas_id, adsp->dtb_mem_region, + adsp->dtb_mem_phys, adsp->dtb_mem_size, + &adsp->dtb_mem_reloc); + if (ret) + goto release_dtb_metadata; + } return 0; + +release_dtb_metadata: + qcom_scm_pas_metadata_release(&adsp->dtb_pas_metadata); + +release_dtb_firmware: + release_firmware(adsp->dtb_firmware); + + return ret; } static int adsp_start(struct rproc *rproc) @@ -216,24 +250,55 @@ static int adsp_start(struct rproc *rproc) goto disable_cx_supply; } + if (adsp->dtb_pas_id) { + ret = qcom_scm_pas_auth_and_reset(adsp->dtb_pas_id); + if (ret) { + dev_err(adsp->dev, + "failed to authenticate dtb image and release reset\n"); + goto disable_px_supply; + } + } + + ret = qcom_mdt_pas_init(adsp->dev, adsp->firmware, rproc->firmware, adsp->pas_id, + adsp->mem_phys, &adsp->pas_metadata); + if (ret) + goto disable_px_supply; + + ret = qcom_mdt_load_no_init(adsp->dev, adsp->firmware, rproc->firmware, adsp->pas_id, + adsp->mem_region, adsp->mem_phys, adsp->mem_size, + &adsp->mem_reloc); + if (ret) + goto release_pas_metadata; + + qcom_pil_info_store(adsp->info_name, adsp->mem_phys, adsp->mem_size); + ret = qcom_scm_pas_auth_and_reset(adsp->pas_id); if (ret) { dev_err(adsp->dev, "failed to authenticate image and release reset\n"); - goto disable_px_supply; + goto release_pas_metadata; } ret = qcom_q6v5_wait_for_start(&adsp->q6v5, msecs_to_jiffies(5000)); if (ret == -ETIMEDOUT) { dev_err(adsp->dev, "start timed out\n"); qcom_scm_pas_shutdown(adsp->pas_id); - goto disable_px_supply; + goto release_pas_metadata; } qcom_scm_pas_metadata_release(&adsp->pas_metadata); + if (adsp->dtb_pas_id) + qcom_scm_pas_metadata_release(&adsp->dtb_pas_metadata); + + /* Remove pointer to the loaded firmware, only valid in adsp_load() & adsp_start() */ + adsp->firmware = NULL; return 0; +release_pas_metadata: + qcom_scm_pas_metadata_release(&adsp->pas_metadata); + if (adsp->dtb_pas_id) + qcom_scm_pas_metadata_release(&adsp->dtb_pas_metadata); disable_px_supply: if (adsp->px_supply) regulator_disable(adsp->px_supply); @@ -249,6 +314,9 @@ disable_proxy_pds: disable_irqs: qcom_q6v5_unprepare(&adsp->q6v5); + /* Remove pointer to the loaded firmware, only valid in adsp_load() & adsp_start() */ + adsp->firmware = NULL; + return ret; } @@ -282,6 +350,12 @@ static int adsp_stop(struct rproc *rproc) if (ret) dev_err(adsp->dev, "failed to shutdown: %d\n", ret); + if (adsp->dtb_pas_id) { + ret = qcom_scm_pas_shutdown(adsp->dtb_pas_id); + if (ret) + dev_err(adsp->dev, "failed to shutdown dtb: %d\n", ret); + } + handover = qcom_q6v5_unprepare(&adsp->q6v5); if (handover) qcom_pas_handover(&adsp->q6v5); @@ -458,6 +532,28 @@ static int adsp_alloc_memory_region(struct qcom_adsp *adsp) return -EBUSY; } + if (!adsp->dtb_pas_id) + return 0; + + node = of_parse_phandle(adsp->dev->of_node, "memory-region", 1); + if (!node) { + dev_err(adsp->dev, "no dtb memory-region specified\n"); + return -EINVAL; + } + + ret = of_address_to_resource(node, 0, &r); + if (ret) + return ret; + + adsp->dtb_mem_phys = adsp->dtb_mem_reloc = r.start; + adsp->dtb_mem_size = resource_size(&r); + adsp->dtb_mem_region = devm_ioremap_wc(adsp->dev, adsp->dtb_mem_phys, adsp->dtb_mem_size); + if (!adsp->dtb_mem_region) { + dev_err(adsp->dev, "unable to map dtb memory region: %pa+%zx\n", + &r.start, adsp->dtb_mem_size); + return -EBUSY; + } + return 0; } @@ -466,7 +562,7 @@ static int adsp_probe(struct platform_device *pdev) const struct adsp_data *desc; struct qcom_adsp *adsp; struct rproc *rproc; - const char *fw_name; + const char *fw_name, *dtb_fw_name = NULL; const struct rproc_ops *ops = &adsp_ops; int ret; @@ -483,6 +579,14 @@ static int adsp_probe(struct platform_device *pdev) if (ret < 0 && ret != -EINVAL) return ret; + if (desc->dtb_firmware_name) { + dtb_fw_name = desc->dtb_firmware_name; + ret = of_property_read_string_index(pdev->dev.of_node, "firmware-name", 1, + &dtb_fw_name); + if (ret < 0 && ret != -EINVAL) + return ret; + } + if (desc->minidump_id) ops = &adsp_minidump_ops; @@ -503,6 +607,10 @@ static int adsp_probe(struct platform_device *pdev) adsp->pas_id = desc->pas_id; adsp->info_name = desc->sysmon_name; adsp->decrypt_shutdown = desc->decrypt_shutdown; + if (dtb_fw_name) { + adsp->dtb_firmware_name = dtb_fw_name; + adsp->dtb_pas_id = desc->dtb_pas_id; + } platform_set_drvdata(pdev, adsp); ret = device_init_wakeup(adsp->dev, true);