drivers/iommu/intel/perfmon.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2
   3 /*
   4  * PERFCFGOFF_REG, PERFFRZOFF_REG
   5  * PERFOVFOFF_REG, PERFCNTROFF_REG
   6  */
   7 #define IOMMU_PMU_NUM_OFF_REGS                  4
   8 #define IOMMU_PMU_OFF_REGS_STEP                 4
   9
  10 #define IOMMU_PMU_FILTER_REQUESTER_ID           0x01
  11 #define IOMMU_PMU_FILTER_DOMAIN                 0x02
  12 #define IOMMU_PMU_FILTER_PASID                  0x04
  13 #define IOMMU_PMU_FILTER_ATS                    0x08
  14 #define IOMMU_PMU_FILTER_PAGE_TABLE             0x10
  15
  16 #define IOMMU_PMU_FILTER_EN                     BIT(31)
  17
  18 #define IOMMU_PMU_CFG_OFFSET                    0x100
  19 #define IOMMU_PMU_CFG_CNTRCAP_OFFSET            0x80
  20 #define IOMMU_PMU_CFG_CNTREVCAP_OFFSET          0x84
  21 #define IOMMU_PMU_CFG_SIZE                      0x8
  22 #define IOMMU_PMU_CFG_FILTERS_OFFSET            0x4
  23
  24 #define IOMMU_PMU_CAP_REGS_STEP                 8
  25
  26 #define iommu_cntrcap_pcc(p)                    ((p) & 0x1)
  27 #define iommu_cntrcap_cw(p)                     (((p) >> 8) & 0xff)
  28 #define iommu_cntrcap_ios(p)                    (((p) >> 16) & 0x1)
  29 #define iommu_cntrcap_egcnt(p)                  (((p) >> 28) & 0xf)
  30
  31 #define IOMMU_EVENT_CFG_EGI_SHIFT               8
  32 #define IOMMU_EVENT_CFG_ES_SHIFT                32
  33 #define IOMMU_EVENT_CFG_INT                     BIT_ULL(1)
  34
  35 #define iommu_event_select(p)                   ((p) & 0xfffffff)
  36 #define iommu_event_group(p)                    (((p) >> 28) & 0xf)
  37
  38 #ifdef CONFIG_INTEL_IOMMU_PERF_EVENTS
  39 int alloc_iommu_pmu(struct intel_iommu *iommu);
  40 void free_iommu_pmu(struct intel_iommu *iommu);
  41 void iommu_pmu_register(struct intel_iommu *iommu);
  42 void iommu_pmu_unregister(struct intel_iommu *iommu);
  43 #else
  44 static inline int
  45 alloc_iommu_pmu(struct intel_iommu *iommu)
  46 {
  47         return 0;
  48 }
  49
  50 static inline void
  51 free_iommu_pmu(struct intel_iommu *iommu)
  52 {
  53 }
  54
  55 static inline void
  56 iommu_pmu_register(struct intel_iommu *iommu)
  57 {
  58 }
  59
  60 static inline void
  61 iommu_pmu_unregister(struct intel_iommu *iommu)
  62 {
  63 }
  64 #endif /* CONFIG_INTEL_IOMMU_PERF_EVENTS */