diff options
Diffstat (limited to 'drivers/iommu/intel/cap_audit.h')
| -rw-r--r-- | drivers/iommu/intel/cap_audit.h | 131 |
1 files changed, 0 insertions, 131 deletions
diff --git a/drivers/iommu/intel/cap_audit.h b/drivers/iommu/intel/cap_audit.h deleted file mode 100644 index d07b75938961..000000000000 --- a/drivers/iommu/intel/cap_audit.h +++ /dev/null @@ -1,131 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * cap_audit.h - audit iommu capabilities header - * - * Copyright (C) 2021 Intel Corporation - * - * Author: Kyung Min Park <kyung.min.park@intel.com> - */ - -/* - * Capability Register Mask - */ -#define CAP_FL5LP_MASK BIT_ULL(60) -#define CAP_PI_MASK BIT_ULL(59) -#define CAP_FL1GP_MASK BIT_ULL(56) -#define CAP_RD_MASK BIT_ULL(55) -#define CAP_WD_MASK BIT_ULL(54) -#define CAP_MAMV_MASK GENMASK_ULL(53, 48) -#define CAP_NFR_MASK GENMASK_ULL(47, 40) -#define CAP_PSI_MASK BIT_ULL(39) -#define CAP_SLLPS_MASK GENMASK_ULL(37, 34) -#define CAP_FRO_MASK GENMASK_ULL(33, 24) -#define CAP_ZLR_MASK BIT_ULL(22) -#define CAP_MGAW_MASK GENMASK_ULL(21, 16) -#define CAP_SAGAW_MASK GENMASK_ULL(12, 8) -#define CAP_CM_MASK BIT_ULL(7) -#define CAP_PHMR_MASK BIT_ULL(6) -#define CAP_PLMR_MASK BIT_ULL(5) -#define CAP_RWBF_MASK BIT_ULL(4) -#define CAP_AFL_MASK BIT_ULL(3) -#define CAP_NDOMS_MASK GENMASK_ULL(2, 0) - -/* - * Extended Capability Register Mask - */ -#define ECAP_RPS_MASK BIT_ULL(49) -#define ECAP_SMPWC_MASK BIT_ULL(48) -#define ECAP_FLTS_MASK BIT_ULL(47) -#define ECAP_SLTS_MASK BIT_ULL(46) -#define ECAP_SLADS_MASK BIT_ULL(45) -#define ECAP_VCS_MASK BIT_ULL(44) -#define ECAP_SMTS_MASK BIT_ULL(43) -#define ECAP_PDS_MASK BIT_ULL(42) -#define ECAP_DIT_MASK BIT_ULL(41) -#define ECAP_PASID_MASK BIT_ULL(40) -#define ECAP_PSS_MASK GENMASK_ULL(39, 35) -#define ECAP_EAFS_MASK BIT_ULL(34) -#define ECAP_NWFS_MASK BIT_ULL(33) -#define ECAP_SRS_MASK BIT_ULL(31) -#define ECAP_ERS_MASK BIT_ULL(30) -#define ECAP_PRS_MASK BIT_ULL(29) -#define ECAP_NEST_MASK BIT_ULL(26) -#define ECAP_MTS_MASK BIT_ULL(25) -#define ECAP_MHMV_MASK GENMASK_ULL(23, 20) -#define ECAP_IRO_MASK GENMASK_ULL(17, 8) -#define ECAP_SC_MASK BIT_ULL(7) -#define ECAP_PT_MASK BIT_ULL(6) -#define ECAP_EIM_MASK BIT_ULL(4) -#define ECAP_DT_MASK BIT_ULL(2) -#define ECAP_QI_MASK BIT_ULL(1) -#define ECAP_C_MASK BIT_ULL(0) - -/* - * u64 intel_iommu_cap_sanity, intel_iommu_ecap_sanity will be adjusted as each - * IOMMU gets audited. - */ -#define DO_CHECK_FEATURE_MISMATCH(a, b, cap, feature, MASK) \ -do { \ - if (cap##_##feature(a) != cap##_##feature(b)) { \ - intel_iommu_##cap##_sanity &= ~(MASK); \ - pr_info("IOMMU feature %s inconsistent", #feature); \ - } \ -} while (0) - -#define CHECK_FEATURE_MISMATCH(a, b, cap, feature, MASK) \ - DO_CHECK_FEATURE_MISMATCH((a)->cap, (b)->cap, cap, feature, MASK) - -#define CHECK_FEATURE_MISMATCH_HOTPLUG(b, cap, feature, MASK) \ -do { \ - if (cap##_##feature(intel_iommu_##cap##_sanity)) \ - DO_CHECK_FEATURE_MISMATCH(intel_iommu_##cap##_sanity, \ - (b)->cap, cap, feature, MASK); \ -} while (0) - -#define MINIMAL_FEATURE_IOMMU(iommu, cap, MASK) \ -do { \ - u64 min_feature = intel_iommu_##cap##_sanity & (MASK); \ - min_feature = min_t(u64, min_feature, (iommu)->cap & (MASK)); \ - intel_iommu_##cap##_sanity = (intel_iommu_##cap##_sanity & ~(MASK)) | \ - min_feature; \ -} while (0) - -#define MINIMAL_FEATURE_HOTPLUG(iommu, cap, feature, MASK, mismatch) \ -do { \ - if ((intel_iommu_##cap##_sanity & (MASK)) > \ - (cap##_##feature((iommu)->cap))) \ - mismatch = true; \ - else \ - (iommu)->cap = ((iommu)->cap & ~(MASK)) | \ - (intel_iommu_##cap##_sanity & (MASK)); \ -} while (0) - -enum cap_audit_type { - CAP_AUDIT_STATIC_DMAR, - CAP_AUDIT_STATIC_IRQR, - CAP_AUDIT_HOTPLUG_DMAR, - CAP_AUDIT_HOTPLUG_IRQR, -}; - -bool intel_cap_smts_sanity(void); -bool intel_cap_pasid_sanity(void); -bool intel_cap_nest_sanity(void); -bool intel_cap_flts_sanity(void); -bool intel_cap_slts_sanity(void); - -static inline bool scalable_mode_support(void) -{ - return (intel_iommu_sm && intel_cap_smts_sanity()); -} - -static inline bool pasid_mode_support(void) -{ - return scalable_mode_support() && intel_cap_pasid_sanity(); -} - -static inline bool nested_mode_support(void) -{ - return scalable_mode_support() && intel_cap_nest_sanity(); -} - -int intel_cap_audit(enum cap_audit_type type, struct intel_iommu *iommu); |