| /* SPDX-License-Identifier: GPL-2.0 */ |
| |
| /* |
| * PERFCFGOFF_REG, PERFFRZOFF_REG |
| * PERFOVFOFF_REG, PERFCNTROFF_REG |
| */ |
| #define IOMMU_PMU_NUM_OFF_REGS 4 |
| #define IOMMU_PMU_OFF_REGS_STEP 4 |
| |
| #define IOMMU_PMU_CFG_OFFSET 0x100 |
| #define IOMMU_PMU_CFG_CNTRCAP_OFFSET 0x80 |
| #define IOMMU_PMU_CFG_CNTREVCAP_OFFSET 0x84 |
| #define IOMMU_PMU_CFG_SIZE 0x8 |
| #define IOMMU_PMU_CFG_FILTERS_OFFSET 0x4 |
| |
| #define IOMMU_PMU_CAP_REGS_STEP 8 |
| |
| #define iommu_cntrcap_pcc(p) ((p) & 0x1) |
| #define iommu_cntrcap_cw(p) (((p) >> 8) & 0xff) |
| #define iommu_cntrcap_ios(p) (((p) >> 16) & 0x1) |
| #define iommu_cntrcap_egcnt(p) (((p) >> 28) & 0xf) |
| |
| #define iommu_event_select(p) ((p) & 0xfffffff) |
| #define iommu_event_group(p) (((p) >> 28) & 0xf) |
| |
| #ifdef CONFIG_INTEL_IOMMU_PERF_EVENTS |
| int alloc_iommu_pmu(struct intel_iommu *iommu); |
| void free_iommu_pmu(struct intel_iommu *iommu); |
| #else |
| static inline int |
| alloc_iommu_pmu(struct intel_iommu *iommu) |
| { |
| return 0; |
| } |
| |
| static inline void |
| free_iommu_pmu(struct intel_iommu *iommu) |
| { |
| } |
| #endif /* CONFIG_INTEL_IOMMU_PERF_EVENTS */ |
