diff --git a/Documentation/devicetree/bindings/arm/stm32/mlahb.txt b/Documentation/devicetree/bindings/arm/stm32/mlahb.txt new file mode 100644 index 0000000..25307aa --- /dev/null +++ b/Documentation/devicetree/bindings/arm/stm32/mlahb.txt @@ -0,0 +1,37 @@ +ML-AHB interconnect bindings + +These bindings describe the STM32 SoCs ML-AHB interconnect bus which connects +a Cortex-M subsystem with dedicated memories. +The MCU SRAM and RETRAM memory parts can be accessed through different addresses +(see "RAM aliases" in [1]) using different buses (see [2]) : balancing the +Cortex-M firmware accesses among those ports allows to tune the system +performance. + +[1]: https://www.st.com/resource/en/reference_manual/dm00327659.pdf +[2]: https://wiki.st.com/stm32mpu/wiki/STM32MP15_RAM_mapping + +Required properties: +- compatible: should be "simple-bus" +- dma-ranges: describes memory addresses translation between the local CPU and + the remote Cortex-M processor. Each memory region, is declared with + 3 parameters: + - param 1: device base address (Cortex-M processor address) + - param 2: physical base address (local CPU address) + - param 3: size of the memory region. + +The Cortex-M remote processor accessed via the mlahb interconnect is described +by a child node. + +Example: +mlahb { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + dma-ranges = <0x00000000 0x38000000 0x10000>, + <0x10000000 0x10000000 0x60000>, + <0x30000000 0x30000000 0x60000>; + + m4_rproc: m4@10000000 { + ... + }; +}; diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,adsp-pil.txt b/Documentation/devicetree/bindings/remoteproc/qcom,hexagon-v56.txt similarity index 84% rename from Documentation/devicetree/bindings/remoteproc/qcom,adsp-pil.txt rename to Documentation/devicetree/bindings/remoteproc/qcom,hexagon-v56.txt index 66af2c3..1337a3d 100644 --- a/Documentation/devicetree/bindings/remoteproc/qcom,adsp-pil.txt +++ b/Documentation/devicetree/bindings/remoteproc/qcom,hexagon-v56.txt @@ -1,12 +1,13 @@ -Qualcomm Technology Inc. ADSP Peripheral Image Loader +Qualcomm Technology Inc. Hexagon v56 Peripheral Image Loader This document defines the binding for a component that loads and boots firmware -on the Qualcomm Technology Inc. ADSP Hexagon core. +on the Qualcomm Technology Inc. Hexagon v56 core. - compatible: Usage: required Value type: Definition: must be one of: + "qcom,qcs404-cdsp-pil", "qcom,sdm845-adsp-pil" - reg: @@ -28,10 +29,11 @@ on the Qualcomm Technology Inc. ADSP Hexagon core. - clocks: Usage: required Value type: - Definition: List of 8 phandle and clock specifier pairs for the adsp. + Definition: List of phandles and clock specifier pairs for the Hexagon, + per clock-names below. - clock-names: - Usage: required + Usage: required for SDM845 ADSP Value type: Definition: List of clock input name strings sorted in the same order as the clocks property. Definition must have @@ -39,6 +41,14 @@ on the Qualcomm Technology Inc. ADSP Hexagon core. "lpass_ahbm_aon_cbcr", "qdsp6ss_xo", "qdsp6ss_sleep" and "qdsp6ss_core". +- clock-names: + Usage: required for QCS404 CDSP + Value type: + Definition: List of clock input name strings sorted in the same + order as the clocks property. Definition must have + "xo", "sway", "tbu", "bimc", "ahb_aon", "q6ss_slave", + "q6ss_master", "q6_axim". + - power-domains: Usage: required Value type: @@ -47,28 +57,33 @@ on the Qualcomm Technology Inc. ADSP Hexagon core. - resets: Usage: required Value type: - Definition: reference to the list of 2 reset-controller for the adsp. + Definition: reference to the list of resets for the Hexagon. - reset-names: - Usage: required + Usage: required for SDM845 ADSP Value type: Definition: must be "pdc_sync" and "cc_lpass" +- reset-names: + Usage: required for QCS404 CDSP + Value type: + Definition: must be "restart" + - qcom,halt-regs: Usage: required Value type: Definition: a phandle reference to a syscon representing TCSR followed - by the offset within syscon for lpass halt register. + by the offset within syscon for Hexagon halt register. - memory-region: Usage: required Value type: - Definition: reference to the reserved-memory for the ADSP + Definition: reference to the reserved-memory for the firmware - qcom,smem-states: Usage: required Value type: - Definition: reference to the smem state for requesting the ADSP to + Definition: reference to the smem state for requesting the Hexagon to shut down - qcom,smem-state-names: @@ -79,7 +94,7 @@ on the Qualcomm Technology Inc. ADSP Hexagon core. = SUBNODES The adsp node may have an subnode named "glink-edge" that describes the -communication edge, channels and devices related to the ADSP. +communication edge, channels and devices related to the Hexagon. See ../soc/qcom/qcom,glink.txt for details on how to describe these. = EXAMPLE diff --git a/Documentation/devicetree/bindings/remoteproc/stm32-rproc.txt b/Documentation/devicetree/bindings/remoteproc/stm32-rproc.txt new file mode 100644 index 0000000..5fa915a --- /dev/null +++ b/Documentation/devicetree/bindings/remoteproc/stm32-rproc.txt @@ -0,0 +1,63 @@ +STMicroelectronics STM32 Remoteproc +----------------------------------- +This document defines the binding for the remoteproc component that loads and +boots firmwares on the ST32MP family chipset. + +Required properties: +- compatible: Must be "st,stm32mp1-m4" +- reg: Address ranges of the RETRAM and MCU SRAM memories used by the + remote processor. +- resets: Reference to a reset controller asserting the remote processor. +- st,syscfg-holdboot: Reference to the system configuration which holds the + remote processor reset hold boot + 1st cell: phandle of syscon block + 2nd cell: register offset containing the hold boot setting + 3rd cell: register bitmask for the hold boot field +- st,syscfg-tz: Reference to the system configuration which holds the RCC trust + zone mode + 1st cell: phandle to syscon block + 2nd cell: register offset containing the RCC trust zone mode setting + 3rd cell: register bitmask for the RCC trust zone mode bit + +Optional properties: +- interrupts: Should contain the watchdog interrupt +- mboxes: This property is required only if the rpmsg/virtio functionality + is used. List of phandle and mailbox channel specifiers: + - a channel (a) used to communicate through virtqueues with the + remote proc. + Bi-directional channel: + - from local to remote = send message + - from remote to local = send message ack + - a channel (b) working the opposite direction of channel (a) + - a channel (c) used by the local proc to notify the remote proc + that it is about to be shut down. + Unidirectional channel: + - from local to remote, where ACK from the remote means + that it is ready for shutdown +- mbox-names: This property is required if the mboxes property is used. + - must be "vq0" for channel (a) + - must be "vq1" for channel (b) + - must be "shutdown" for channel (c) +- memory-region: List of phandles to the reserved memory regions associated with + the remoteproc device. This is variable and describes the + memories shared with the remote processor (eg: remoteproc + firmware and carveouts, rpmsg vrings, ...). + (see ../reserved-memory/reserved-memory.txt) +- st,syscfg-pdds: Reference to the system configuration which holds the remote + processor deep sleep setting + 1st cell: phandle to syscon block + 2nd cell: register offset containing the deep sleep setting + 3rd cell: register bitmask for the deep sleep bit +- st,auto-boot: If defined, when remoteproc is probed, it loads the default + firmware and starts the remote processor. + +Example: + m4_rproc: m4@10000000 { + compatible = "st,stm32mp1-m4"; + reg = <0x10000000 0x40000>, + <0x30000000 0x40000>, + <0x38000000 0x10000>; + resets = <&rcc MCU_R>; + st,syscfg-holdboot = <&rcc 0x10C 0x1>; + st,syscfg-tz = <&rcc 0x000 0x1>; + }; diff --git a/Documentation/remoteproc.txt b/Documentation/remoteproc.txt index 77fb03a..03c3d2e 100644 --- a/Documentation/remoteproc.txt +++ b/Documentation/remoteproc.txt @@ -314,6 +314,8 @@ Here are the various resource types that are currently supported:: * @RSC_VDEV: declare support for a virtio device, and serve as its * virtio header. * @RSC_LAST: just keep this one at the end + * @RSC_VENDOR_START: start of the vendor specific resource types range + * @RSC_VENDOR_END: end of the vendor specific resource types range * * Please note that these values are used as indices to the rproc_handle_rsc * lookup table, so please keep them sane. Moreover, @RSC_LAST is used to @@ -321,11 +323,13 @@ Here are the various resource types that are currently supported:: * please update it as needed. */ enum fw_resource_type { - RSC_CARVEOUT = 0, - RSC_DEVMEM = 1, - RSC_TRACE = 2, - RSC_VDEV = 3, - RSC_LAST = 4, + RSC_CARVEOUT = 0, + RSC_DEVMEM = 1, + RSC_TRACE = 2, + RSC_VDEV = 3, + RSC_LAST = 4, + RSC_VENDOR_START = 128, + RSC_VENDOR_END = 512, }; For more details regarding a specific resource type, please see its diff --git a/MAINTAINERS b/MAINTAINERS index c04ea10..2c14988 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -13590,9 +13590,11 @@ L: linux-remoteproc@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc.git S: Maintained F: Documentation/devicetree/bindings/remoteproc/ +F: Documentation/ABI/testing/sysfs-class-remoteproc F: Documentation/remoteproc.txt F: drivers/remoteproc/ F: include/linux/remoteproc.h +F: include/linux/remoteproc/ REMOTE PROCESSOR MESSAGING (RPMSG) SUBSYSTEM M: Ohad Ben-Cohen @@ -13602,8 +13604,11 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/ohad/rpmsg.git S: Maintained F: drivers/rpmsg/ F: Documentation/rpmsg.txt +F: Documentation/ABI/testing/sysfs-bus-rpmsg F: include/linux/rpmsg.h F: include/linux/rpmsg/ +F: include/uapi/linux/rpmsg.h +F: samples/rpmsg/ RENESAS CLOCK DRIVERS M: Geert Uytterhoeven diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig index 18be41b..28ed306 100644 --- a/drivers/remoteproc/Kconfig +++ b/drivers/remoteproc/Kconfig @@ -16,7 +16,7 @@ if REMOTEPROC config IMX_REMOTEPROC tristate "IMX6/7 remoteproc support" - depends on SOC_IMX6SX || SOC_IMX7D + depends on ARCH_MXC help Say y here to support iMX's remote processors (Cortex M4 on iMX7D) via the remote processor framework. @@ -116,6 +116,7 @@ config QCOM_Q6V5_MSS depends on RPMSG_QCOM_GLINK_SMEM || RPMSG_QCOM_GLINK_SMEM=n depends on QCOM_SYSMON || QCOM_SYSMON=n select MFD_SYSCON + select QCOM_MDT_LOADER select QCOM_Q6V5_COMMON select QCOM_RPROC_COMMON select QCOM_SCM @@ -198,6 +199,21 @@ config ST_REMOTEPROC config ST_SLIM_REMOTEPROC tristate +config STM32_RPROC + tristate "STM32 remoteproc support" + depends on ARCH_STM32 + depends on REMOTEPROC + select MAILBOX + help + Say y here to support STM32 MCU processors via the + remote processor framework. + + You want to say y here in order to enable AMP + use-cases to run on your platform (dedicated firmware could be + offloaded to remote MCU processors using this framework). + + This can be either built-in or a loadable module. + endif # REMOTEPROC endmenu diff --git a/drivers/remoteproc/Makefile b/drivers/remoteproc/Makefile index ce5d061..00f09e6 100644 --- a/drivers/remoteproc/Makefile +++ b/drivers/remoteproc/Makefile @@ -26,3 +26,4 @@ qcom_wcnss_pil-y += qcom_wcnss.o qcom_wcnss_pil-y += qcom_wcnss_iris.o obj-$(CONFIG_ST_REMOTEPROC) += st_remoteproc.o obj-$(CONFIG_ST_SLIM_REMOTEPROC) += st_slim_rproc.o +obj-$(CONFIG_STM32_RPROC) += stm32_rproc.o diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c index 36f2f14..3e72b6f 100644 --- a/drivers/remoteproc/imx_rproc.c +++ b/drivers/remoteproc/imx_rproc.c @@ -165,7 +165,7 @@ static int imx_rproc_start(struct rproc *rproc) ret = regmap_update_bits(priv->regmap, dcfg->src_reg, dcfg->src_mask, dcfg->src_start); if (ret) - dev_err(dev, "Filed to enable M4!\n"); + dev_err(dev, "Failed to enable M4!\n"); return ret; } @@ -180,7 +180,7 @@ static int imx_rproc_stop(struct rproc *rproc) ret = regmap_update_bits(priv->regmap, dcfg->src_reg, dcfg->src_mask, dcfg->src_stop); if (ret) - dev_err(dev, "Filed to stop M4!\n"); + dev_err(dev, "Failed to stop M4!\n"); return ret; } @@ -203,7 +203,7 @@ static int imx_rproc_da_to_sys(struct imx_rproc *priv, u64 da, } } - dev_warn(priv->dev, "Translation filed: da = 0x%llx len = 0x%x\n", + dev_warn(priv->dev, "Translation failed: da = 0x%llx len = 0x%x\n", da, len); return -ENOENT; } @@ -349,7 +349,7 @@ static int imx_rproc_probe(struct platform_device *pdev) ret = imx_rproc_addr_init(priv, pdev); if (ret) { - dev_err(dev, "filed on imx_rproc_addr_init\n"); + dev_err(dev, "failed on imx_rproc_addr_init\n"); goto err_put_rproc; } diff --git a/drivers/remoteproc/qcom_q6v5_adsp.c b/drivers/remoteproc/qcom_q6v5_adsp.c index 1f3ef9e..e953886 100644 --- a/drivers/remoteproc/qcom_q6v5_adsp.c +++ b/drivers/remoteproc/qcom_q6v5_adsp.c @@ -46,11 +46,9 @@ #define LPASS_PWR_ON_REG 0x10 #define LPASS_HALTREQ_REG 0x0 -/* list of clocks required by ADSP PIL */ -static const char * const adsp_clk_id[] = { - "sway_cbcr", "lpass_ahbs_aon_cbcr", "lpass_ahbm_aon_cbcr", - "qdsp6ss_xo", "qdsp6ss_sleep", "qdsp6ss_core", -}; +#define QDSP6SS_XO_CBCR 0x38 +#define QDSP6SS_CORE_CBCR 0x20 +#define QDSP6SS_SLEEP_CBCR 0x3c struct adsp_pil_data { int crash_reason_smem; @@ -59,6 +57,9 @@ struct adsp_pil_data { const char *ssr_name; const char *sysmon_name; int ssctl_id; + + const char **clk_ids; + int num_clks; }; struct qcom_adsp { @@ -75,7 +76,7 @@ struct qcom_adsp { void __iomem *qdsp6ss_base; struct reset_control *pdc_sync_reset; - struct reset_control *cc_lpass_restart; + struct reset_control *restart; struct regmap *halt_map; unsigned int halt_lpass; @@ -143,7 +144,7 @@ reset: /* Assert the LPASS PDC Reset */ reset_control_assert(adsp->pdc_sync_reset); /* Place the LPASS processor into reset */ - reset_control_assert(adsp->cc_lpass_restart); + reset_control_assert(adsp->restart); /* wait after asserting subsystem restart from AOSS */ usleep_range(200, 300); @@ -153,7 +154,7 @@ reset: /* De-assert the LPASS PDC Reset */ reset_control_deassert(adsp->pdc_sync_reset); /* Remove the LPASS reset */ - reset_control_deassert(adsp->cc_lpass_restart); + reset_control_deassert(adsp->restart); /* wait after de-asserting subsystem restart from AOSS */ usleep_range(200, 300); @@ -192,6 +193,15 @@ static int adsp_start(struct rproc *rproc) goto disable_power_domain; } + /* Enable the XO clock */ + writel(1, adsp->qdsp6ss_base + QDSP6SS_XO_CBCR); + + /* Enable the QDSP6SS sleep clock */ + writel(1, adsp->qdsp6ss_base + QDSP6SS_SLEEP_CBCR); + + /* Enable the QDSP6 core clock */ + writel(1, adsp->qdsp6ss_base + QDSP6SS_CORE_CBCR); + /* Program boot address */ writel(adsp->mem_phys >> 4, adsp->qdsp6ss_base + RST_EVB_REG); @@ -280,8 +290,9 @@ static const struct rproc_ops adsp_ops = { .load = adsp_load, }; -static int adsp_init_clock(struct qcom_adsp *adsp) +static int adsp_init_clock(struct qcom_adsp *adsp, const char **clk_ids) { + int num_clks = 0; int i, ret; adsp->xo = devm_clk_get(adsp->dev, "xo"); @@ -292,32 +303,39 @@ static int adsp_init_clock(struct qcom_adsp *adsp) return ret; } - adsp->num_clks = ARRAY_SIZE(adsp_clk_id); + for (i = 0; clk_ids[i]; i++) + num_clks++; + + adsp->num_clks = num_clks; adsp->clks = devm_kcalloc(adsp->dev, adsp->num_clks, sizeof(*adsp->clks), GFP_KERNEL); if (!adsp->clks) return -ENOMEM; for (i = 0; i < adsp->num_clks; i++) - adsp->clks[i].id = adsp_clk_id[i]; + adsp->clks[i].id = clk_ids[i]; return devm_clk_bulk_get(adsp->dev, adsp->num_clks, adsp->clks); } static int adsp_init_reset(struct qcom_adsp *adsp) { - adsp->pdc_sync_reset = devm_reset_control_get_exclusive(adsp->dev, + adsp->pdc_sync_reset = devm_reset_control_get_optional_exclusive(adsp->dev, "pdc_sync"); if (IS_ERR(adsp->pdc_sync_reset)) { dev_err(adsp->dev, "failed to acquire pdc_sync reset\n"); return PTR_ERR(adsp->pdc_sync_reset); } - adsp->cc_lpass_restart = devm_reset_control_get_exclusive(adsp->dev, - "cc_lpass"); - if (IS_ERR(adsp->cc_lpass_restart)) { - dev_err(adsp->dev, "failed to acquire cc_lpass restart\n"); - return PTR_ERR(adsp->cc_lpass_restart); + adsp->restart = devm_reset_control_get_optional_exclusive(adsp->dev, "restart"); + + /* Fall back to the old "cc_lpass" if "restart" is absent */ + if (!adsp->restart) + adsp->restart = devm_reset_control_get_exclusive(adsp->dev, "cc_lpass"); + + if (IS_ERR(adsp->restart)) { + dev_err(adsp->dev, "failed to acquire restart\n"); + return PTR_ERR(adsp->restart); } return 0; @@ -415,7 +433,7 @@ static int adsp_probe(struct platform_device *pdev) if (ret) goto free_rproc; - ret = adsp_init_clock(adsp); + ret = adsp_init_clock(adsp, desc->clk_ids); if (ret) goto free_rproc; @@ -479,9 +497,28 @@ static const struct adsp_pil_data adsp_resource_init = { .ssr_name = "lpass", .sysmon_name = "adsp", .ssctl_id = 0x14, + .clk_ids = (const char*[]) { + "sway_cbcr", "lpass_ahbs_aon_cbcr", "lpass_ahbm_aon_cbcr", + "qdsp6ss_xo", "qdsp6ss_sleep", "qdsp6ss_core", NULL + }, + .num_clks = 7, +}; + +static const struct adsp_pil_data cdsp_resource_init = { + .crash_reason_smem = 601, + .firmware_name = "cdsp.mdt", + .ssr_name = "cdsp", + .sysmon_name = "cdsp", + .ssctl_id = 0x17, + .clk_ids = (const char*[]) { + "sway", "tbu", "bimc", "ahb_aon", "q6ss_slave", "q6ss_master", + "q6_axim", NULL + }, + .num_clks = 7, }; static const struct of_device_id adsp_of_match[] = { + { .compatible = "qcom,qcs404-cdsp-pil", .data = &cdsp_resource_init }, { .compatible = "qcom,sdm845-adsp-pil", .data = &adsp_resource_init }, { }, }; diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c index 981581b..8fcf9d2 100644 --- a/drivers/remoteproc/qcom_q6v5_mss.c +++ b/drivers/remoteproc/qcom_q6v5_mss.c @@ -659,23 +659,29 @@ static int q6v5_mpss_init_image(struct q6v5 *qproc, const struct firmware *fw) { unsigned long dma_attrs = DMA_ATTR_FORCE_CONTIGUOUS; dma_addr_t phys; + void *metadata; int mdata_perm; int xferop_ret; + size_t size; void *ptr; int ret; - ptr = dma_alloc_attrs(qproc->dev, fw->size, &phys, GFP_KERNEL, dma_attrs); + metadata = qcom_mdt_read_metadata(fw, &size); + if (IS_ERR(metadata)) + return PTR_ERR(metadata); + + ptr = dma_alloc_attrs(qproc->dev, size, &phys, GFP_KERNEL, dma_attrs); if (!ptr) { + kfree(metadata); dev_err(qproc->dev, "failed to allocate mdt buffer\n"); return -ENOMEM; } - memcpy(ptr, fw->data, fw->size); + memcpy(ptr, metadata, size); /* Hypervisor mapping to access metadata by modem */ mdata_perm = BIT(QCOM_SCM_VMID_HLOS); - ret = q6v5_xfer_mem_ownership(qproc, &mdata_perm, - true, phys, fw->size); + ret = q6v5_xfer_mem_ownership(qproc, &mdata_perm, true, phys, size); if (ret) { dev_err(qproc->dev, "assigning Q6 access to metadata failed: %d\n", ret); @@ -693,14 +699,14 @@ static int q6v5_mpss_init_image(struct q6v5 *qproc, const struct firmware *fw) dev_err(qproc->dev, "MPSS header authentication failed: %d\n", ret); /* Metadata authentication done, remove modem access */ - xferop_ret = q6v5_xfer_mem_ownership(qproc, &mdata_perm, - false, phys, fw->size); + xferop_ret = q6v5_xfer_mem_ownership(qproc, &mdata_perm, false, phys, size); if (xferop_ret) dev_warn(qproc->dev, "mdt buffer not reclaimed system may become unstable\n"); free_dma_attrs: - dma_free_attrs(qproc->dev, fw->size, ptr, phys, dma_attrs); + dma_free_attrs(qproc->dev, size, ptr, phys, dma_attrs); + kfree(metadata); return ret < 0 ? ret : 0; } @@ -981,7 +987,18 @@ static int q6v5_mpss_load(struct q6v5 *qproc) ptr = qproc->mpss_region + offset; - if (phdr->p_filesz) { + if (phdr->p_filesz && phdr->p_offset < fw->size) { + /* Firmware is large enough to be non-split */ + if (phdr->p_offset + phdr->p_filesz > fw->size) { + dev_err(qproc->dev, + "failed to load segment %d from truncated file %s\n", + i, fw_name); + ret = -EINVAL; + goto release_firmware; + } + + memcpy(ptr, fw->data + phdr->p_offset, phdr->p_filesz); + } else if (phdr->p_filesz) { /* Replace "xxx.xxx" with "xxx.bxx" */ sprintf(fw_name + fw_name_len - 3, "b%02d", i); ret = request_firmware(&seg_fw, fw_name, qproc->dev); diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c index 8b53632..3c5fbbb 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -512,6 +512,7 @@ static int rproc_handle_vdev(struct rproc *rproc, struct fw_rsc_vdev *rsc, /* Initialise vdev subdevice */ snprintf(name, sizeof(name), "vdev%dbuffer", rvdev->index); rvdev->dev.parent = rproc->dev.parent; + rvdev->dev.dma_pfn_offset = rproc->dev.parent->dma_pfn_offset; rvdev->dev.release = rproc_rvdev_release; dev_set_name(&rvdev->dev, "%s#%s", dev_name(rvdev->dev.parent), name); dev_set_drvdata(&rvdev->dev, rvdev); @@ -1058,6 +1059,20 @@ static int rproc_handle_resources(struct rproc *rproc, dev_dbg(dev, "rsc: type %d\n", hdr->type); + if (hdr->type >= RSC_VENDOR_START && + hdr->type <= RSC_VENDOR_END) { + ret = rproc_handle_rsc(rproc, hdr->type, rsc, + offset + sizeof(*hdr), avail); + if (ret == RSC_HANDLED) + continue; + else if (ret < 0) + break; + + dev_warn(dev, "unsupported vendor resource %d\n", + hdr->type); + continue; + } + if (hdr->type >= RSC_LAST) { dev_warn(dev, "unsupported resource %d\n", hdr->type); continue; diff --git a/drivers/remoteproc/remoteproc_elf_loader.c b/drivers/remoteproc/remoteproc_elf_loader.c index 215a440..606aae1 100644 --- a/drivers/remoteproc/remoteproc_elf_loader.c +++ b/drivers/remoteproc/remoteproc_elf_loader.c @@ -247,8 +247,7 @@ find_table(struct device *dev, struct elf32_hdr *ehdr, size_t fw_size) } /* make sure the offsets array isn't truncated */ - if (table->num * sizeof(table->offset[0]) + - sizeof(struct resource_table) > size) { + if (struct_size(table, offset, table->num) > size) { dev_err(dev, "resource table incomplete\n"); return NULL; } diff --git a/drivers/remoteproc/remoteproc_internal.h b/drivers/remoteproc/remoteproc_internal.h index a877509..493ef92 100644 --- a/drivers/remoteproc/remoteproc_internal.h +++ b/drivers/remoteproc/remoteproc_internal.h @@ -99,6 +99,17 @@ static inline int rproc_parse_fw(struct rproc *rproc, const struct firmware *fw) } static inline +int rproc_handle_rsc(struct rproc *rproc, u32 rsc_type, void *rsc, int offset, + int avail) +{ + if (rproc->ops->handle_rsc) + return rproc->ops->handle_rsc(rproc, rsc_type, rsc, offset, + avail); + + return RSC_IGNORED; +} + +static inline struct resource_table *rproc_find_loaded_rsc_table(struct rproc *rproc, const struct firmware *fw) { diff --git a/drivers/remoteproc/stm32_rproc.c b/drivers/remoteproc/stm32_rproc.c new file mode 100644 index 0000000..e2da719 --- /dev/null +++ b/drivers/remoteproc/stm32_rproc.c @@ -0,0 +1,628 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) STMicroelectronics 2018 - All Rights Reserved + * Authors: Ludovic Barre for STMicroelectronics. + * Fabien Dessenne for STMicroelectronics. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "remoteproc_internal.h" + +#define HOLD_BOOT 0 +#define RELEASE_BOOT 1 + +#define MBOX_NB_VQ 2 +#define MBOX_NB_MBX 3 + +#define STM32_SMC_RCC 0x82001000 +#define STM32_SMC_REG_WRITE 0x1 + +#define STM32_MBX_VQ0 "vq0" +#define STM32_MBX_VQ1 "vq1" +#define STM32_MBX_SHUTDOWN "shutdown" + +struct stm32_syscon { + struct regmap *map; + u32 reg; + u32 mask; +}; + +struct stm32_rproc_mem { + char name[20]; + void __iomem *cpu_addr; + phys_addr_t bus_addr; + u32 dev_addr; + size_t size; +}; + +struct stm32_rproc_mem_ranges { + u32 dev_addr; + u32 bus_addr; + u32 size; +}; + +struct stm32_mbox { + const unsigned char name[10]; + struct mbox_chan *chan; + struct mbox_client client; + int vq_id; +}; + +struct stm32_rproc { + struct reset_control *rst; + struct stm32_syscon hold_boot; + struct stm32_syscon pdds; + u32 nb_rmems; + struct stm32_rproc_mem *rmems; + struct stm32_mbox mb[MBOX_NB_MBX]; + bool secured_soc; +}; + +static int stm32_rproc_pa_to_da(struct rproc *rproc, phys_addr_t pa, u64 *da) +{ + unsigned int i; + struct stm32_rproc *ddata = rproc->priv; + struct stm32_rproc_mem *p_mem; + + for (i = 0; i < ddata->nb_rmems; i++) { + p_mem = &ddata->rmems[i]; + + if (pa < p_mem->bus_addr || + pa >= p_mem->bus_addr + p_mem->size) + continue; + *da = pa - p_mem->bus_addr + p_mem->dev_addr; + dev_dbg(rproc->dev.parent, "pa %pa to da %llx\n", &pa, *da); + return 0; + } + + return -EINVAL; +} + +static int stm32_rproc_mem_alloc(struct rproc *rproc, + struct rproc_mem_entry *mem) +{ + struct device *dev = rproc->dev.parent; + void *va; + + dev_dbg(dev, "map memory: %pa+%x\n", &mem->dma, mem->len); + va = ioremap_wc(mem->dma, mem->len); + if (IS_ERR_OR_NULL(va)) { + dev_err(dev, "Unable to map memory region: %pa+%x\n", + &mem->dma, mem->len); + return -ENOMEM; + } + + /* Update memory entry va */ + mem->va = va; + + return 0; +} + +static int stm32_rproc_mem_release(struct rproc *rproc, + struct rproc_mem_entry *mem) +{ + dev_dbg(rproc->dev.parent, "unmap memory: %pa\n", &mem->dma); + iounmap(mem->va); + + return 0; +} + +static int stm32_rproc_of_memory_translations(struct rproc *rproc) +{ + struct device *parent, *dev = rproc->dev.parent; + struct stm32_rproc *ddata = rproc->priv; + struct device_node *np; + struct stm32_rproc_mem *p_mems; + struct stm32_rproc_mem_ranges *mem_range; + int cnt, array_size, i, ret = 0; + + parent = dev->parent; + np = parent->of_node; + + cnt = of_property_count_elems_of_size(np, "dma-ranges", + sizeof(*mem_range)); + if (cnt <= 0) { + dev_err(dev, "%s: dma-ranges property not defined\n", __func__); + return -EINVAL; + } + + p_mems = devm_kcalloc(dev, cnt, sizeof(*p_mems), GFP_KERNEL); + if (!p_mems) + return -ENOMEM; + mem_range = kcalloc(cnt, sizeof(*mem_range), GFP_KERNEL); + if (!mem_range) + return -ENOMEM; + + array_size = cnt * sizeof(struct stm32_rproc_mem_ranges) / sizeof(u32); + + ret = of_property_read_u32_array(np, "dma-ranges", + (u32 *)mem_range, array_size); + if (ret) { + dev_err(dev, "error while get dma-ranges property: %x\n", ret); + goto free_mem; + } + + for (i = 0; i < cnt; i++) { + p_mems[i].bus_addr = mem_range[i].bus_addr; + p_mems[i].dev_addr = mem_range[i].dev_addr; + p_mems[i].size = mem_range[i].size; + + dev_dbg(dev, "memory range[%i]: da %#x, pa %pa, size %#zx:\n", + i, p_mems[i].dev_addr, &p_mems[i].bus_addr, + p_mems[i].size); + } + + ddata->rmems = p_mems; + ddata->nb_rmems = cnt; + +free_mem: + kfree(mem_range); + return ret; +} + +static int stm32_rproc_mbox_idx(struct rproc *rproc, const unsigned char *name) +{ + struct stm32_rproc *ddata = rproc->priv; + int i; + + for (i = 0; i < ARRAY_SIZE(ddata->mb); i++) { + if (!strncmp(ddata->mb[i].name, name, strlen(name))) + return i; + } + dev_err(&rproc->dev, "mailbox %s not found\n", name); + + return -EINVAL; +} + +static int stm32_rproc_elf_load_rsc_table(struct rproc *rproc, + const struct firmware *fw) +{ + if (rproc_elf_load_rsc_table(rproc, fw)) + dev_warn(&rproc->dev, "no resource table found for this firmware\n"); + + return 0; +} + +static int stm32_rproc_parse_fw(struct rproc *rproc, const struct firmware *fw) +{ + struct device *dev = rproc->dev.parent; + struct device_node *np = dev->of_node; + struct of_phandle_iterator it; + struct rproc_mem_entry *mem; + struct reserved_mem *rmem; + u64 da; + int index = 0; + + /* Register associated reserved memory regions */ + of_phandle_iterator_init(&it, np, "memory-region", NULL, 0); + while (of_phandle_iterator_next(&it) == 0) { + rmem = of_reserved_mem_lookup(it.node); + if (!rmem) { + dev_err(dev, "unable to acquire memory-region\n"); + return -EINVAL; + } + + if (stm32_rproc_pa_to_da(rproc, rmem->base, &da) < 0) { + dev_err(dev, "memory region not valid %pa\n", + &rmem->base); + return -EINVAL; + } + + /* No need to map vdev buffer */ + if (strcmp(it.node->name, "vdev0buffer")) { + /* Register memory region */ + mem = rproc_mem_entry_init(dev, NULL, + (dma_addr_t)rmem->base, + rmem->size, da, + stm32_rproc_mem_alloc, + stm32_rproc_mem_release, + it.node->name); + + if (mem) + rproc_coredump_add_segment(rproc, da, + rmem->size); + } else { + /* Register reserved memory for vdev buffer alloc */ + mem = rproc_of_resm_mem_entry_init(dev, index, + rmem->size, + rmem->base, + it.node->name); + } + + if (!mem) + return -ENOMEM; + + rproc_add_carveout(rproc, mem); + index++; + } + + return stm32_rproc_elf_load_rsc_table(rproc, fw); +} + +static irqreturn_t stm32_rproc_wdg(int irq, void *data) +{ + struct rproc *rproc = data; + + rproc_report_crash(rproc, RPROC_WATCHDOG); + + return IRQ_HANDLED; +} + +static void stm32_rproc_mb_callback(struct mbox_client *cl, void *data) +{ + struct rproc *rproc = dev_get_drvdata(cl->dev); + struct stm32_mbox *mb = container_of(cl, struct stm32_mbox, client); + + if (rproc_vq_interrupt(rproc, mb->vq_id) == IRQ_NONE) + dev_dbg(&rproc->dev, "no message found in vq%d\n", mb->vq_id); +} + +static void stm32_rproc_free_mbox(struct rproc *rproc) +{ + struct stm32_rproc *ddata = rproc->priv; + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(ddata->mb); i++) { + if (ddata->mb[i].chan) + mbox_free_channel(ddata->mb[i].chan); + ddata->mb[i].chan = NULL; + } +} + +static const struct stm32_mbox stm32_rproc_mbox[MBOX_NB_MBX] = { + { + .name = STM32_MBX_VQ0, + .vq_id = 0, + .client = { + .rx_callback = stm32_rproc_mb_callback, + .tx_block = false, + }, + }, + { + .name = STM32_MBX_VQ1, + .vq_id = 1, + .client = { + .rx_callback = stm32_rproc_mb_callback, + .tx_block = false, + }, + }, + { + .name = STM32_MBX_SHUTDOWN, + .vq_id = -1, + .client = { + .tx_block = true, + .tx_done = NULL, + .tx_tout = 500, /* 500 ms time out */ + }, + } +}; + +static void stm32_rproc_request_mbox(struct rproc *rproc) +{ + struct stm32_rproc *ddata = rproc->priv; + struct device *dev = &rproc->dev; + unsigned int i; + const unsigned char *name; + struct mbox_client *cl; + + /* Initialise mailbox structure table */ + memcpy(ddata->mb, stm32_rproc_mbox, sizeof(stm32_rproc_mbox)); + + for (i = 0; i < MBOX_NB_MBX; i++) { + name = ddata->mb[i].name; + + cl = &ddata->mb[i].client; + cl->dev = dev->parent; + + ddata->mb[i].chan = mbox_request_channel_byname(cl, name); + if (IS_ERR(ddata->mb[i].chan)) { + dev_warn(dev, "cannot get %s mbox\n", name); + ddata->mb[i].chan = NULL; + } + } +} + +static int stm32_rproc_set_hold_boot(struct rproc *rproc, bool hold) +{ + struct stm32_rproc *ddata = rproc->priv; + struct stm32_syscon hold_boot = ddata->hold_boot; + struct arm_smccc_res smc_res; + int val, err; + + val = hold ? HOLD_BOOT : RELEASE_BOOT; + + if (IS_ENABLED(CONFIG_HAVE_ARM_SMCCC) && ddata->secured_soc) { + arm_smccc_smc(STM32_SMC_RCC, STM32_SMC_REG_WRITE, + hold_boot.reg, val, 0, 0, 0, 0, &smc_res); + err = smc_res.a0; + } else { + err = regmap_update_bits(hold_boot.map, hold_boot.reg, + hold_boot.mask, val); + } + + if (err) + dev_err(&rproc->dev, "failed to set hold boot\n"); + + return err; +} + +static void stm32_rproc_add_coredump_trace(struct rproc *rproc) +{ + struct rproc_debug_trace *trace; + struct rproc_dump_segment *segment; + bool already_added; + + list_for_each_entry(trace, &rproc->traces, node) { + already_added = false; + + list_for_each_entry(segment, &rproc->dump_segments, node) { + if (segment->da == trace->trace_mem.da) { + already_added = true; + break; + } + } + + if (!already_added) + rproc_coredump_add_segment(rproc, trace->trace_mem.da, + trace->trace_mem.len); + } +} + +static int stm32_rproc_start(struct rproc *rproc) +{ + int err; + + stm32_rproc_add_coredump_trace(rproc); + + err = stm32_rproc_set_hold_boot(rproc, false); + if (err) + return err; + + return stm32_rproc_set_hold_boot(rproc, true); +} + +static int stm32_rproc_stop(struct rproc *rproc) +{ + struct stm32_rproc *ddata = rproc->priv; + int err, dummy_data, idx; + + /* request shutdown of the remote processor */ + if (rproc->state != RPROC_OFFLINE) { + idx = stm32_rproc_mbox_idx(rproc, STM32_MBX_SHUTDOWN); + if (idx >= 0 && ddata->mb[idx].chan) { + /* a dummy data is sent to allow to block on transmit */ + err = mbox_send_message(ddata->mb[idx].chan, + &dummy_data); + if (err < 0) + dev_warn(&rproc->dev, "warning: remote FW shutdown without ack\n"); + } + } + + err = stm32_rproc_set_hold_boot(rproc, true); + if (err) + return err; + + err = reset_control_assert(ddata->rst); + if (err) { + dev_err(&rproc->dev, "failed to assert the reset\n"); + return err; + } + + /* to allow platform Standby power mode, set remote proc Deep Sleep */ + if (ddata->pdds.map) { + err = regmap_update_bits(ddata->pdds.map, ddata->pdds.reg, + ddata->pdds.mask, 1); + if (err) { + dev_err(&rproc->dev, "failed to set pdds\n"); + return err; + } + } + + return 0; +} + +static void stm32_rproc_kick(struct rproc *rproc, int vqid) +{ + struct stm32_rproc *ddata = rproc->priv; + unsigned int i; + int err; + + if (WARN_ON(vqid >= MBOX_NB_VQ)) + return; + + for (i = 0; i < MBOX_NB_MBX; i++) { + if (vqid != ddata->mb[i].vq_id) + continue; + if (!ddata->mb[i].chan) + return; + err = mbox_send_message(ddata->mb[i].chan, (void *)(long)vqid); + if (err < 0) + dev_err(&rproc->dev, "%s: failed (%s, err:%d)\n", + __func__, ddata->mb[i].name, err); + return; + } +} + +static struct rproc_ops st_rproc_ops = { + .start = stm32_rproc_start, + .stop = stm32_rproc_stop, + .kick = stm32_rproc_kick, + .load = rproc_elf_load_segments, + .parse_fw = stm32_rproc_parse_fw, + .find_loaded_rsc_table = rproc_elf_find_loaded_rsc_table, + .sanity_check = rproc_elf_sanity_check, + .get_boot_addr = rproc_elf_get_boot_addr, +}; + +static const struct of_device_id stm32_rproc_match[] = { + { .compatible = "st,stm32mp1-m4" }, + {}, +}; +MODULE_DEVICE_TABLE(of, stm32_rproc_match); + +static int stm32_rproc_get_syscon(struct device_node *np, const char *prop, + struct stm32_syscon *syscon) +{ + int err = 0; + + syscon->map = syscon_regmap_lookup_by_phandle(np, prop); + if (IS_ERR(syscon->map)) { + err = PTR_ERR(syscon->map); + syscon->map = NULL; + goto out; + } + + err = of_property_read_u32_index(np, prop, 1, &syscon->reg); + if (err) + goto out; + + err = of_property_read_u32_index(np, prop, 2, &syscon->mask); + +out: + return err; +} + +static int stm32_rproc_parse_dt(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct device_node *np = dev->of_node; + struct rproc *rproc = platform_get_drvdata(pdev); + struct stm32_rproc *ddata = rproc->priv; + struct stm32_syscon tz; + unsigned int tzen; + int err, irq; + + irq = platform_get_irq(pdev, 0); + if (irq > 0) { + err = devm_request_irq(dev, irq, stm32_rproc_wdg, 0, + dev_name(dev), rproc); + if (err) { + dev_err(dev, "failed to request wdg irq\n"); + return err; + } + + dev_info(dev, "wdg irq registered\n"); + } + + ddata->rst = devm_reset_control_get_by_index(dev, 0); + if (IS_ERR(ddata->rst)) { + dev_err(dev, "failed to get mcu reset\n"); + return PTR_ERR(ddata->rst); + } + + /* + * if platform is secured the hold boot bit must be written by + * smc call and read normally. + * if not secure the hold boot bit could be read/write normally + */ + err = stm32_rproc_get_syscon(np, "st,syscfg-tz", &tz); + if (err) { + dev_err(dev, "failed to get tz syscfg\n"); + return err; + } + + err = regmap_read(tz.map, tz.reg, &tzen); + if (err) { + dev_err(&rproc->dev, "failed to read tzen\n"); + return err; + } + ddata->secured_soc = tzen & tz.mask; + + err = stm32_rproc_get_syscon(np, "st,syscfg-holdboot", + &ddata->hold_boot); + if (err) { + dev_err(dev, "failed to get hold boot\n"); + return err; + } + + err = stm32_rproc_get_syscon(np, "st,syscfg-pdds", &ddata->pdds); + if (err) + dev_warn(dev, "failed to get pdds\n"); + + rproc->auto_boot = of_property_read_bool(np, "st,auto-boot"); + + return stm32_rproc_of_memory_translations(rproc); +} + +static int stm32_rproc_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct stm32_rproc *ddata; + struct device_node *np = dev->of_node; + struct rproc *rproc; + int ret; + + ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(32)); + if (ret) + return ret; + + rproc = rproc_alloc(dev, np->name, &st_rproc_ops, NULL, sizeof(*ddata)); + if (!rproc) + return -ENOMEM; + + rproc->has_iommu = false; + ddata = rproc->priv; + + platform_set_drvdata(pdev, rproc); + + ret = stm32_rproc_parse_dt(pdev); + if (ret) + goto free_rproc; + + stm32_rproc_request_mbox(rproc); + + ret = rproc_add(rproc); + if (ret) + goto free_mb; + + return 0; + +free_mb: + stm32_rproc_free_mbox(rproc); +free_rproc: + rproc_free(rproc); + return ret; +} + +static int stm32_rproc_remove(struct platform_device *pdev) +{ + struct rproc *rproc = platform_get_drvdata(pdev); + + if (atomic_read(&rproc->power) > 0) + rproc_shutdown(rproc); + + rproc_del(rproc); + stm32_rproc_free_mbox(rproc); + rproc_free(rproc); + + return 0; +} + +static struct platform_driver stm32_rproc_driver = { + .probe = stm32_rproc_probe, + .remove = stm32_rproc_remove, + .driver = { + .name = "stm32-rproc", + .of_match_table = of_match_ptr(stm32_rproc_match), + }, +}; +module_platform_driver(stm32_rproc_driver); + +MODULE_DESCRIPTION("STM32 Remote Processor Control Driver"); +MODULE_AUTHOR("Ludovic Barre "); +MODULE_AUTHOR("Fabien Dessenne "); +MODULE_LICENSE("GPL v2"); + diff --git a/drivers/soc/qcom/mdt_loader.c b/drivers/soc/qcom/mdt_loader.c index 9ca7d94..24cd193 100644 --- a/drivers/soc/qcom/mdt_loader.c +++ b/drivers/soc/qcom/mdt_loader.c @@ -66,6 +66,66 @@ ssize_t qcom_mdt_get_size(const struct firmware *fw) } EXPORT_SYMBOL_GPL(qcom_mdt_get_size); +/** + * qcom_mdt_read_metadata() - read header and metadata from mdt or mbn + * @fw: firmware of mdt header or mbn + * @data_len: length of the read metadata blob + * + * The mechanism that performs the authentication of the loading firmware + * expects an ELF header directly followed by the segment of hashes, with no + * padding inbetween. This function allocates a chunk of memory for this pair + * and copy the two pieces into the buffer. + * + * In the case of split firmware the hash is found directly following the ELF + * header, rather than at p_offset described by the second program header. + * + * The caller is responsible to free (kfree()) the returned pointer. + * + * Return: pointer to data, or ERR_PTR() + */ +void *qcom_mdt_read_metadata(const struct firmware *fw, size_t *data_len) +{ + const struct elf32_phdr *phdrs; + const struct elf32_hdr *ehdr; + size_t hash_offset; + size_t hash_size; + size_t ehdr_size; + void *data; + + ehdr = (struct elf32_hdr *)fw->data; + phdrs = (struct elf32_phdr *)(ehdr + 1); + + if (ehdr->e_phnum < 2) + return ERR_PTR(-EINVAL); + + if (phdrs[0].p_type == PT_LOAD || phdrs[1].p_type == PT_LOAD) + return ERR_PTR(-EINVAL); + + if ((phdrs[1].p_flags & QCOM_MDT_TYPE_MASK) != QCOM_MDT_TYPE_HASH) + return ERR_PTR(-EINVAL); + + ehdr_size = phdrs[0].p_filesz; + hash_size = phdrs[1].p_filesz; + + data = kmalloc(ehdr_size + hash_size, GFP_KERNEL); + if (!data) + return ERR_PTR(-ENOMEM); + + /* Is the header and hash already packed */ + if (ehdr_size + hash_size == fw->size) + hash_offset = phdrs[0].p_filesz; + else + hash_offset = phdrs[1].p_offset; + + memcpy(data, fw->data, ehdr_size); + memcpy(data + ehdr_size, fw->data + hash_offset, hash_size); + + *data_len = ehdr_size + hash_size; + + return data; +} +EXPORT_SYMBOL_GPL(qcom_mdt_read_metadata); + static int __qcom_mdt_load(struct device *dev, const struct firmware *fw, const char *firmware, int pas_id, void *mem_region, phys_addr_t mem_phys, size_t mem_size, @@ -78,12 +138,14 @@ static int __qcom_mdt_load(struct device *dev, const struct firmware *fw, phys_addr_t mem_reloc; phys_addr_t min_addr = PHYS_ADDR_MAX; phys_addr_t max_addr = 0; + size_t metadata_len; size_t fw_name_len; ssize_t offset; + void *metadata; char *fw_name; bool relocate = false; void *ptr; - int ret; + int ret = 0; int i; if (!fw || !mem_region || !mem_phys || !mem_size) @@ -101,7 +163,15 @@ static int __qcom_mdt_load(struct device *dev, const struct firmware *fw, return -ENOMEM; if (pas_init) { - ret = qcom_scm_pas_init_image(pas_id, fw->data, fw->size); + metadata = qcom_mdt_read_metadata(fw, &metadata_len); + if (IS_ERR(metadata)) { + ret = PTR_ERR(metadata); + goto out; + } + + ret = qcom_scm_pas_init_image(pas_id, metadata, metadata_len); + + kfree(metadata); if (ret) { dev_err(dev, "invalid firmware metadata\n"); goto out; @@ -162,7 +232,19 @@ static int __qcom_mdt_load(struct device *dev, const struct firmware *fw, ptr = mem_region + offset; - if (phdr->p_filesz) { + if (phdr->p_filesz && phdr->p_offset < fw->size) { + /* Firmware is large enough to be non-split */ + if (phdr->p_offset + phdr->p_filesz > fw->size) { + dev_err(dev, + "failed to load segment %d from truncated file %s\n", + i, firmware); + ret = -EINVAL; + break; + } + + memcpy(ptr, fw->data + phdr->p_offset, phdr->p_filesz); + } else if (phdr->p_filesz) { + /* Firmware not large enough, load split-out segments */ sprintf(fw_name + fw_name_len - 3, "b%02d", i); ret = request_firmware_into_buf(&seg_fw, fw_name, dev, ptr, phdr->p_filesz); diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h index 04d0470..16ad666 100644 --- a/include/linux/remoteproc.h +++ b/include/linux/remoteproc.h @@ -100,7 +100,9 @@ struct fw_rsc_hdr { * the remote processor will be writing logs. * @RSC_VDEV: declare support for a virtio device, and serve as its * virtio header. - * @RSC_LAST: just keep this one at the end + * @RSC_LAST: just keep this one at the end of standard resources + * @RSC_VENDOR_START: start of the vendor specific resource types range + * @RSC_VENDOR_END: end of the vendor specific resource types range * * For more details regarding a specific resource type, please see its * dedicated structure below. @@ -111,11 +113,13 @@ struct fw_rsc_hdr { * please update it as needed. */ enum fw_resource_type { - RSC_CARVEOUT = 0, - RSC_DEVMEM = 1, - RSC_TRACE = 2, - RSC_VDEV = 3, - RSC_LAST = 4, + RSC_CARVEOUT = 0, + RSC_DEVMEM = 1, + RSC_TRACE = 2, + RSC_VDEV = 3, + RSC_LAST = 4, + RSC_VENDOR_START = 128, + RSC_VENDOR_END = 512, }; #define FW_RSC_ADDR_ANY (-1) @@ -340,12 +344,26 @@ struct rproc_mem_entry { struct firmware; /** + * enum rsc_handling_status - return status of rproc_ops handle_rsc hook + * @RSC_HANDLED: resource was handled + * @RSC_IGNORED: resource was ignored + */ +enum rsc_handling_status { + RSC_HANDLED = 0, + RSC_IGNORED = 1, +}; + +/** * struct rproc_ops - platform-specific device handlers * @start: power on the device and boot it * @stop: power off the device * @kick: kick a virtqueue (virtqueue id given as a parameter) * @da_to_va: optional platform hook to perform address translations * @parse_fw: parse firmware to extract information (e.g. resource table) + * @handle_rsc: optional platform hook to handle vendor resources. Should return + * RSC_HANDLED if resource was handled, RSC_IGNORED if not handled and a + * negative value on error + * @load_rsc_table: load resource table from firmware image * @find_loaded_rsc_table: find the loaded resouce table * @load: load firmware to memory, where the remote processor * expects to find it @@ -358,6 +376,8 @@ struct rproc_ops { void (*kick)(struct rproc *rproc, int vqid); void * (*da_to_va)(struct rproc *rproc, u64 da, int len); int (*parse_fw)(struct rproc *rproc, const struct firmware *fw); + int (*handle_rsc)(struct rproc *rproc, u32 rsc_type, void *rsc, + int offset, int avail); struct resource_table *(*find_loaded_rsc_table)( struct rproc *rproc, const struct firmware *fw); int (*load)(struct rproc *rproc, const struct firmware *fw); diff --git a/include/linux/soc/qcom/mdt_loader.h b/include/linux/soc/qcom/mdt_loader.h index 944b06a..e600bae 100644 --- a/include/linux/soc/qcom/mdt_loader.h +++ b/include/linux/soc/qcom/mdt_loader.h @@ -21,4 +21,6 @@ int qcom_mdt_load_no_init(struct device *dev, const struct firmware *fw, const char *fw_name, int pas_id, void *mem_region, phys_addr_t mem_phys, size_t mem_size, phys_addr_t *reloc_base); +void *qcom_mdt_read_metadata(const struct firmware *fw, size_t *data_len); + #endif