From 7db2bc925e4642df6255612e5521af0423ada18a Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Wed, 27 Oct 2021 16:25:07 +0200 Subject: [PATCH] Revert "firmware: qcom: scm: Add support for MC boot address API" This reverts commits 55845f46df03 and c50031f03dfe, since this still causes a build failure when QCOM_SCM is a loadable module, or when CONFIG_SMP is disabled: ERROR: modpost: "cpu_logical_map" [drivers/firmware/qcom-scm.ko] undefined! This be done better for 5.17, but it's too late now to rework properly. Fixes: c50031f03dfe ("firmware: qcom: scm: Don't break compile test on non-ARM platforms") Fixes: 55845f46df03 ("firmware: qcom: scm: Add support for MC boot address API") Signed-off-by: Arnd Bergmann --- drivers/firmware/qcom_scm.c | 94 ++++++++------------------------------------- drivers/firmware/qcom_scm.h | 4 -- 2 files changed, 17 insertions(+), 81 deletions(-) diff --git a/drivers/firmware/qcom_scm.c b/drivers/firmware/qcom_scm.c index 11464f6..7db8066 100644 --- a/drivers/firmware/qcom_scm.c +++ b/drivers/firmware/qcom_scm.c @@ -17,10 +17,6 @@ #include #include -#if defined(CONFIG_ARM) || defined(CONFIG_ARM64) -#include -#endif - #include "qcom_scm.h" static bool download_mode = IS_ENABLED(CONFIG_QCOM_SCM_DOWNLOAD_MODE_DEFAULT); @@ -264,44 +260,15 @@ static bool __qcom_scm_is_call_available(struct device *dev, u32 svc_id, return ret ? false : !!res.result[0]; } -#if defined(CONFIG_ARM) || defined(CONFIG_ARM64) -static int __qcom_scm_set_boot_addr_mc(void *entry, const cpumask_t *cpus, - unsigned int flags) -{ - struct qcom_scm_desc desc = { - .svc = QCOM_SCM_SVC_BOOT, - .cmd = QCOM_SCM_BOOT_SET_ADDR_MC, - .owner = ARM_SMCCC_OWNER_SIP, - .arginfo = QCOM_SCM_ARGS(6), - }; - unsigned int cpu; - u64 map; - - /* Need a device for DMA of the additional arguments */ - if (!__scm || __get_convention() == SMC_CONVENTION_LEGACY) - return -EOPNOTSUPP; - - desc.args[0] = virt_to_phys(entry); - for_each_cpu(cpu, cpus) { - map = cpu_logical_map(cpu); - desc.args[1] |= BIT(MPIDR_AFFINITY_LEVEL(map, 0)); - desc.args[2] |= BIT(MPIDR_AFFINITY_LEVEL(map, 1)); - desc.args[3] |= BIT(MPIDR_AFFINITY_LEVEL(map, 2)); - } - desc.args[4] = ~0ULL; /* Reserved for affinity level 3 */ - desc.args[5] = flags; - - return qcom_scm_call(__scm->dev, &desc, NULL); -} -#else -static inline int __qcom_scm_set_boot_addr_mc(void *entry, const cpumask_t *cpus, - unsigned int flags) -{ - return -EINVAL; -} -#endif - -static int __qcom_scm_set_warm_boot_addr(void *entry, const cpumask_t *cpus) +/** + * qcom_scm_set_warm_boot_addr() - Set the warm boot address for cpus + * @entry: Entry point function for the cpus + * @cpus: The cpumask of cpus that will use the entry point + * + * Set the Linux entry point for the SCM to transfer control to when coming + * out of a power down. CPU power down may be executed on cpuidle or hotplug. + */ +int qcom_scm_set_warm_boot_addr(void *entry, const cpumask_t *cpus) { int ret; int flags = 0; @@ -337,28 +304,17 @@ static int __qcom_scm_set_warm_boot_addr(void *entry, const cpumask_t *cpus) return ret; } +EXPORT_SYMBOL(qcom_scm_set_warm_boot_addr); /** - * qcom_scm_set_warm_boot_addr() - Set the warm boot address for cpus + * qcom_scm_set_cold_boot_addr() - Set the cold boot address for cpus * @entry: Entry point function for the cpus * @cpus: The cpumask of cpus that will use the entry point * - * Set the Linux entry point for the SCM to transfer control to when coming - * out of a power down. CPU power down may be executed on cpuidle or hotplug. + * Set the cold boot address of the cpus. Any cpu outside the supported + * range would be removed from the cpu present mask. */ -int qcom_scm_set_warm_boot_addr(void *entry, const cpumask_t *cpus) -{ - if (!cpus || cpumask_empty(cpus)) - return -EINVAL; - - if (__qcom_scm_set_boot_addr_mc(entry, cpus, QCOM_SCM_BOOT_MC_FLAG_WARMBOOT)) - /* Fallback to old SCM call */ - return __qcom_scm_set_warm_boot_addr(entry, cpus); - return 0; -} -EXPORT_SYMBOL(qcom_scm_set_warm_boot_addr); - -static int __qcom_scm_set_cold_boot_addr(void *entry, const cpumask_t *cpus) +int qcom_scm_set_cold_boot_addr(void *entry, const cpumask_t *cpus) { int flags = 0; int cpu; @@ -375,6 +331,9 @@ static int __qcom_scm_set_cold_boot_addr(void *entry, const cpumask_t *cpus) .owner = ARM_SMCCC_OWNER_SIP, }; + if (!cpus || cpumask_empty(cpus)) + return -EINVAL; + for_each_cpu(cpu, cpus) { if (cpu < ARRAY_SIZE(scm_cb_flags)) flags |= scm_cb_flags[cpu]; @@ -387,25 +346,6 @@ static int __qcom_scm_set_cold_boot_addr(void *entry, const cpumask_t *cpus) return qcom_scm_call_atomic(__scm ? __scm->dev : NULL, &desc, NULL); } - -/** - * qcom_scm_set_cold_boot_addr() - Set the cold boot address for cpus - * @entry: Entry point function for the cpus - * @cpus: The cpumask of cpus that will use the entry point - * - * Set the cold boot address of the cpus. Any cpu outside the supported - * range would be removed from the cpu present mask. - */ -int qcom_scm_set_cold_boot_addr(void *entry, const cpumask_t *cpus) -{ - if (!cpus || cpumask_empty(cpus)) - return -EINVAL; - - if (__qcom_scm_set_boot_addr_mc(entry, cpus, QCOM_SCM_BOOT_MC_FLAG_COLDBOOT)) - /* Fallback to old SCM call */ - return __qcom_scm_set_cold_boot_addr(entry, cpus); - return 0; -} EXPORT_SYMBOL(qcom_scm_set_cold_boot_addr); /** diff --git a/drivers/firmware/qcom_scm.h b/drivers/firmware/qcom_scm.h index 2a6a87b..d92156c 100644 --- a/drivers/firmware/qcom_scm.h +++ b/drivers/firmware/qcom_scm.h @@ -78,12 +78,8 @@ extern int scm_legacy_call(struct device *dev, const struct qcom_scm_desc *desc, #define QCOM_SCM_BOOT_SET_ADDR 0x01 #define QCOM_SCM_BOOT_TERMINATE_PC 0x02 #define QCOM_SCM_BOOT_SET_DLOAD_MODE 0x10 -#define QCOM_SCM_BOOT_SET_ADDR_MC 0x11 #define QCOM_SCM_BOOT_SET_REMOTE_STATE 0x0a #define QCOM_SCM_FLUSH_FLAG_MASK 0x3 -#define QCOM_SCM_BOOT_MC_FLAG_AARCH64 BIT(0) -#define QCOM_SCM_BOOT_MC_FLAG_COLDBOOT BIT(1) -#define QCOM_SCM_BOOT_MC_FLAG_WARMBOOT BIT(2) #define QCOM_SCM_SVC_PIL 0x02 #define QCOM_SCM_PIL_PAS_INIT_IMAGE 0x01 -- 2.7.4