diff options
Diffstat (limited to 'arch/powerpc/kernel/rtas.c')
| -rw-r--r-- | arch/powerpc/kernel/rtas.c | 34 |
1 files changed, 18 insertions, 16 deletions
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c index d126d71ea5bd..6bada744402b 100644 --- a/arch/powerpc/kernel/rtas.c +++ b/arch/powerpc/kernel/rtas.c @@ -828,7 +828,6 @@ void rtas_activate_firmware(void) pr_err("ibm,activate-firmware failed (%i)\n", fwrc); } -static int ibm_suspend_me_token = RTAS_UNKNOWN_SERVICE; #ifdef CONFIG_PPC_PSERIES /** * rtas_call_reentrant() - Used for reentrant rtas calls @@ -988,10 +987,10 @@ static struct rtas_filter rtas_filters[] __ro_after_init = { static bool in_rmo_buf(u32 base, u32 end) { return base >= rtas_rmo_buf && - base < (rtas_rmo_buf + RTAS_RMOBUF_MAX) && + base < (rtas_rmo_buf + RTAS_USER_REGION_SIZE) && base <= end && end >= rtas_rmo_buf && - end < (rtas_rmo_buf + RTAS_RMOBUF_MAX); + end < (rtas_rmo_buf + RTAS_USER_REGION_SIZE); } static bool block_rtas_call(int token, int nargs, @@ -1052,6 +1051,14 @@ err: return true; } +static void __init rtas_syscall_filter_init(void) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(rtas_filters); i++) + rtas_filters[i].token = rtas_token(rtas_filters[i].name); +} + #else static bool block_rtas_call(int token, int nargs, @@ -1060,6 +1067,10 @@ static bool block_rtas_call(int token, int nargs, return false; } +static void __init rtas_syscall_filter_init(void) +{ +} + #endif /* CONFIG_PPC_RTAS_FILTER */ /* We assume to be passed big endian arguments */ @@ -1103,7 +1114,7 @@ SYSCALL_DEFINE1(rtas, struct rtas_args __user *, uargs) return -EINVAL; /* Need to handle ibm,suspend_me call specially */ - if (token == ibm_suspend_me_token) { + if (token == rtas_token("ibm,suspend-me")) { /* * rtas_ibm_suspend_me assumes the streamid handle is in cpu @@ -1163,9 +1174,6 @@ void __init rtas_initialize(void) unsigned long rtas_region = RTAS_INSTANTIATE_MAX; u32 base, size, entry; int no_base, no_size, no_entry; -#ifdef CONFIG_PPC_RTAS_FILTER - int i; -#endif /* Get RTAS dev node and fill up our "rtas" structure with infos * about it. @@ -1191,12 +1199,10 @@ void __init rtas_initialize(void) * the stop-self token if any */ #ifdef CONFIG_PPC64 - if (firmware_has_feature(FW_FEATURE_LPAR)) { + if (firmware_has_feature(FW_FEATURE_LPAR)) rtas_region = min(ppc64_rma_size, RTAS_INSTANTIATE_MAX); - ibm_suspend_me_token = rtas_token("ibm,suspend-me"); - } #endif - rtas_rmo_buf = memblock_phys_alloc_range(RTAS_RMOBUF_MAX, PAGE_SIZE, + rtas_rmo_buf = memblock_phys_alloc_range(RTAS_USER_REGION_SIZE, PAGE_SIZE, 0, rtas_region); if (!rtas_rmo_buf) panic("ERROR: RTAS: Failed to allocate %lx bytes below %pa\n", @@ -1206,11 +1212,7 @@ void __init rtas_initialize(void) rtas_last_error_token = rtas_token("rtas-last-error"); #endif -#ifdef CONFIG_PPC_RTAS_FILTER - for (i = 0; i < ARRAY_SIZE(rtas_filters); i++) { - rtas_filters[i].token = rtas_token(rtas_filters[i].name); - } -#endif + rtas_syscall_filter_init(); } int __init early_init_dt_scan_rtas(unsigned long node, |