diff options
Diffstat (limited to 'drivers/acpi/nfit/intel.c')
| -rw-r--r-- | drivers/acpi/nfit/intel.c | 30 |
1 files changed, 1 insertions, 29 deletions
diff --git a/drivers/acpi/nfit/intel.c b/drivers/acpi/nfit/intel.c index 8dd792a55730..3902759abcba 100644 --- a/drivers/acpi/nfit/intel.c +++ b/drivers/acpi/nfit/intel.c @@ -3,6 +3,7 @@ #include <linux/libnvdimm.h> #include <linux/ndctl.h> #include <linux/acpi.h> +#include <linux/memregion.h> #include <asm/smp.h> #include "intel.h" #include "nfit.h" @@ -190,8 +191,6 @@ static int intel_security_change_key(struct nvdimm *nvdimm, } } -static void nvdimm_invalidate_cache(void); - static int __maybe_unused intel_security_unlock(struct nvdimm *nvdimm, const struct nvdimm_key_data *key_data) { @@ -227,9 +226,6 @@ static int __maybe_unused intel_security_unlock(struct nvdimm *nvdimm, return -EIO; } - /* DIMM unlocked, invalidate all CPU caches before we read it */ - nvdimm_invalidate_cache(); - return 0; } @@ -297,8 +293,6 @@ static int __maybe_unused intel_security_erase(struct nvdimm *nvdimm, if (!test_bit(cmd, &nfit_mem->dsm_mask)) return -ENOTTY; - /* flush all cache before we erase DIMM */ - nvdimm_invalidate_cache(); memcpy(nd_cmd.cmd.passphrase, key->data, sizeof(nd_cmd.cmd.passphrase)); rc = nvdimm_ctl(nvdimm, ND_CMD_CALL, &nd_cmd, sizeof(nd_cmd), NULL); @@ -317,8 +311,6 @@ static int __maybe_unused intel_security_erase(struct nvdimm *nvdimm, return -ENXIO; } - /* DIMM erased, invalidate all CPU caches before we read it */ - nvdimm_invalidate_cache(); return 0; } @@ -354,8 +346,6 @@ static int __maybe_unused intel_security_query_overwrite(struct nvdimm *nvdimm) return -ENXIO; } - /* flush all cache before we make the nvdimms available */ - nvdimm_invalidate_cache(); return 0; } @@ -380,8 +370,6 @@ static int __maybe_unused intel_security_overwrite(struct nvdimm *nvdimm, if (!test_bit(NVDIMM_INTEL_OVERWRITE, &nfit_mem->dsm_mask)) return -ENOTTY; - /* flush all cache before we erase DIMM */ - nvdimm_invalidate_cache(); memcpy(nd_cmd.cmd.passphrase, nkey->data, sizeof(nd_cmd.cmd.passphrase)); rc = nvdimm_ctl(nvdimm, ND_CMD_CALL, &nd_cmd, sizeof(nd_cmd), NULL); @@ -401,22 +389,6 @@ static int __maybe_unused intel_security_overwrite(struct nvdimm *nvdimm, } } -/* - * TODO: define a cross arch wbinvd equivalent when/if - * NVDIMM_FAMILY_INTEL command support arrives on another arch. - */ -#ifdef CONFIG_X86 -static void nvdimm_invalidate_cache(void) -{ - wbinvd_on_all_cpus(); -} -#else -static void nvdimm_invalidate_cache(void) -{ - WARN_ON_ONCE("cache invalidation required after unlock\n"); -} -#endif - static const struct nvdimm_security_ops __intel_security_ops = { .get_flags = intel_security_flags, .freeze = intel_security_freeze, |