133 lines
4.1 KiB
C
133 lines
4.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* From PPR Vol 1 for AMD Family 19h Model 01h B1
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* 55898 Rev 0.35 - Feb 5, 2021
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*/
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#include <asm/msr-index.h>
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/*
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* IBS Hardware MSRs
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*/
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/* MSR 0xc0011030: IBS Fetch Control */
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union ibs_fetch_ctl {
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__u64 val;
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struct {
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__u64 fetch_maxcnt:16,/* 0-15: instruction fetch max. count */
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fetch_cnt:16, /* 16-31: instruction fetch count */
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fetch_lat:16, /* 32-47: instruction fetch latency */
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fetch_en:1, /* 48: instruction fetch enable */
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fetch_val:1, /* 49: instruction fetch valid */
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fetch_comp:1, /* 50: instruction fetch complete */
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ic_miss:1, /* 51: i-cache miss */
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phy_addr_valid:1,/* 52: physical address valid */
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l1tlb_pgsz:2, /* 53-54: i-cache L1TLB page size
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* (needs IbsPhyAddrValid) */
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l1tlb_miss:1, /* 55: i-cache fetch missed in L1TLB */
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l2tlb_miss:1, /* 56: i-cache fetch missed in L2TLB */
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rand_en:1, /* 57: random tagging enable */
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fetch_l2_miss:1,/* 58: L2 miss for sampled fetch
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* (needs IbsFetchComp) */
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reserved:5; /* 59-63: reserved */
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};
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};
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/* MSR 0xc0011033: IBS Execution Control */
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union ibs_op_ctl {
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__u64 val;
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struct {
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__u64 opmaxcnt:16, /* 0-15: periodic op max. count */
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reserved0:1, /* 16: reserved */
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op_en:1, /* 17: op sampling enable */
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op_val:1, /* 18: op sample valid */
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cnt_ctl:1, /* 19: periodic op counter control */
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opmaxcnt_ext:7, /* 20-26: upper 7 bits of periodic op maximum count */
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reserved1:5, /* 27-31: reserved */
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opcurcnt:27, /* 32-58: periodic op counter current count */
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reserved2:5; /* 59-63: reserved */
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};
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};
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/* MSR 0xc0011035: IBS Op Data 2 */
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union ibs_op_data {
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__u64 val;
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struct {
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__u64 comp_to_ret_ctr:16, /* 0-15: op completion to retire count */
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tag_to_ret_ctr:16, /* 15-31: op tag to retire count */
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reserved1:2, /* 32-33: reserved */
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op_return:1, /* 34: return op */
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op_brn_taken:1, /* 35: taken branch op */
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op_brn_misp:1, /* 36: mispredicted branch op */
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op_brn_ret:1, /* 37: branch op retired */
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op_rip_invalid:1, /* 38: RIP is invalid */
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op_brn_fuse:1, /* 39: fused branch op */
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op_microcode:1, /* 40: microcode op */
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reserved2:23; /* 41-63: reserved */
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};
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};
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/* MSR 0xc0011036: IBS Op Data 2 */
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union ibs_op_data2 {
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__u64 val;
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struct {
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__u64 data_src:3, /* 0-2: data source */
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reserved0:1, /* 3: reserved */
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rmt_node:1, /* 4: destination node */
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cache_hit_st:1, /* 5: cache hit state */
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reserved1:57; /* 5-63: reserved */
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};
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};
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/* MSR 0xc0011037: IBS Op Data 3 */
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union ibs_op_data3 {
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__u64 val;
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struct {
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__u64 ld_op:1, /* 0: load op */
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st_op:1, /* 1: store op */
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dc_l1tlb_miss:1, /* 2: data cache L1TLB miss */
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dc_l2tlb_miss:1, /* 3: data cache L2TLB hit in 2M page */
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dc_l1tlb_hit_2m:1, /* 4: data cache L1TLB hit in 2M page */
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dc_l1tlb_hit_1g:1, /* 5: data cache L1TLB hit in 1G page */
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dc_l2tlb_hit_2m:1, /* 6: data cache L2TLB hit in 2M page */
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dc_miss:1, /* 7: data cache miss */
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dc_mis_acc:1, /* 8: misaligned access */
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reserved:4, /* 9-12: reserved */
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dc_wc_mem_acc:1, /* 13: write combining memory access */
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dc_uc_mem_acc:1, /* 14: uncacheable memory access */
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dc_locked_op:1, /* 15: locked operation */
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dc_miss_no_mab_alloc:1, /* 16: DC miss with no MAB allocated */
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dc_lin_addr_valid:1, /* 17: data cache linear address valid */
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dc_phy_addr_valid:1, /* 18: data cache physical address valid */
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dc_l2_tlb_hit_1g:1, /* 19: data cache L2 hit in 1GB page */
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l2_miss:1, /* 20: L2 cache miss */
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sw_pf:1, /* 21: software prefetch */
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op_mem_width:4, /* 22-25: load/store size in bytes */
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op_dc_miss_open_mem_reqs:6, /* 26-31: outstanding mem reqs on DC fill */
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dc_miss_lat:16, /* 32-47: data cache miss latency */
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tlb_refill_lat:16; /* 48-63: L1 TLB refill latency */
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};
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};
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/* MSR 0xc001103c: IBS Fetch Control Extended */
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union ic_ibs_extd_ctl {
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__u64 val;
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struct {
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__u64 itlb_refill_lat:16, /* 0-15: ITLB Refill latency for sampled fetch */
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reserved:48; /* 16-63: reserved */
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};
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};
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/*
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* IBS driver related
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*/
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struct perf_ibs_data {
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u32 size;
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union {
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u32 data[0]; /* data buffer starts here */
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u32 caps;
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};
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u64 regs[MSR_AMD64_IBS_REG_COUNT_MAX];
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};
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