Contributors: 7
Author Tokens Token Proportion Commits Commit Proportion
Kan Liang 147 71.01% 2 25.00%
Youquan Song 25 12.08% 1 12.50%
Suresh B. Siddha 12 5.80% 1 12.50%
Lu Baolu 10 4.83% 1 12.50%
Ingo Molnar 6 2.90% 1 12.50%
David Woodhouse 4 1.93% 1 12.50%
Anil S Keshavamurthy 3 1.45% 1 12.50%
Total 207 8 


/* 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_FILTER_REQUESTER_ID		0x01
#define IOMMU_PMU_FILTER_DOMAIN			0x02
#define IOMMU_PMU_FILTER_PASID			0x04
#define IOMMU_PMU_FILTER_ATS			0x08
#define IOMMU_PMU_FILTER_PAGE_TABLE		0x10

#define IOMMU_PMU_FILTER_EN			BIT(31)

#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_CFG_EGI_SHIFT		8
#define IOMMU_EVENT_CFG_ES_SHIFT		32
#define IOMMU_EVENT_CFG_INT			BIT_ULL(1)

#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);
void iommu_pmu_register(struct intel_iommu *iommu);
void iommu_pmu_unregister(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)
{
}

static inline void
iommu_pmu_register(struct intel_iommu *iommu)
{
}

static inline void
iommu_pmu_unregister(struct intel_iommu *iommu)
{
}
#endif /* CONFIG_INTEL_IOMMU_PERF_EVENTS */