| /* Copyright (c) 2014-2015, The Linux Foundation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 and |
| * only version 2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #ifndef _CORESIGHT_CORESIGHT_ETM_H |
| #define _CORESIGHT_CORESIGHT_ETM_H |
| |
| #include <asm/local.h> |
| #include <linux/spinlock.h> |
| #include "coresight-priv.h" |
| |
| /* |
| * Device registers: |
| * 0x000 - 0x2FC: Trace registers |
| * 0x300 - 0x314: Management registers |
| * 0x318 - 0xEFC: Trace registers |
| * 0xF00: Management registers |
| * 0xFA0 - 0xFA4: Trace registers |
| * 0xFA8 - 0xFFC: Management registers |
| */ |
| /* Trace registers (0x000-0x2FC) */ |
| /* Main control and configuration registers */ |
| #define TRCPRGCTLR 0x004 |
| #define TRCPROCSELR 0x008 |
| #define TRCSTATR 0x00C |
| #define TRCCONFIGR 0x010 |
| #define TRCAUXCTLR 0x018 |
| #define TRCEVENTCTL0R 0x020 |
| #define TRCEVENTCTL1R 0x024 |
| #define TRCSTALLCTLR 0x02C |
| #define TRCTSCTLR 0x030 |
| #define TRCSYNCPR 0x034 |
| #define TRCCCCTLR 0x038 |
| #define TRCBBCTLR 0x03C |
| #define TRCTRACEIDR 0x040 |
| #define TRCQCTLR 0x044 |
| /* Filtering control registers */ |
| #define TRCVICTLR 0x080 |
| #define TRCVIIECTLR 0x084 |
| #define TRCVISSCTLR 0x088 |
| #define TRCVIPCSSCTLR 0x08C |
| #define TRCVDCTLR 0x0A0 |
| #define TRCVDSACCTLR 0x0A4 |
| #define TRCVDARCCTLR 0x0A8 |
| /* Derived resources registers */ |
| #define TRCSEQEVRn(n) (0x100 + (n * 4)) |
| #define TRCSEQRSTEVR 0x118 |
| #define TRCSEQSTR 0x11C |
| #define TRCEXTINSELR 0x120 |
| #define TRCCNTRLDVRn(n) (0x140 + (n * 4)) |
| #define TRCCNTCTLRn(n) (0x150 + (n * 4)) |
| #define TRCCNTVRn(n) (0x160 + (n * 4)) |
| /* ID registers */ |
| #define TRCIDR8 0x180 |
| #define TRCIDR9 0x184 |
| #define TRCIDR10 0x188 |
| #define TRCIDR11 0x18C |
| #define TRCIDR12 0x190 |
| #define TRCIDR13 0x194 |
| #define TRCIMSPEC0 0x1C0 |
| #define TRCIMSPECn(n) (0x1C0 + (n * 4)) |
| #define TRCIDR0 0x1E0 |
| #define TRCIDR1 0x1E4 |
| #define TRCIDR2 0x1E8 |
| #define TRCIDR3 0x1EC |
| #define TRCIDR4 0x1F0 |
| #define TRCIDR5 0x1F4 |
| #define TRCIDR6 0x1F8 |
| #define TRCIDR7 0x1FC |
| /* Resource selection registers */ |
| #define TRCRSCTLRn(n) (0x200 + (n * 4)) |
| /* Single-shot comparator registers */ |
| #define TRCSSCCRn(n) (0x280 + (n * 4)) |
| #define TRCSSCSRn(n) (0x2A0 + (n * 4)) |
| #define TRCSSPCICRn(n) (0x2C0 + (n * 4)) |
| /* Management registers (0x300-0x314) */ |
| #define TRCOSLAR 0x300 |
| #define TRCOSLSR 0x304 |
| #define TRCPDCR 0x310 |
| #define TRCPDSR 0x314 |
| /* Trace registers (0x318-0xEFC) */ |
| /* Comparator registers */ |
| #define TRCACVRn(n) (0x400 + (n * 8)) |
| #define TRCACATRn(n) (0x480 + (n * 8)) |
| #define TRCDVCVRn(n) (0x500 + (n * 16)) |
| #define TRCDVCMRn(n) (0x580 + (n * 16)) |
| #define TRCCIDCVRn(n) (0x600 + (n * 8)) |
| #define TRCVMIDCVRn(n) (0x640 + (n * 8)) |
| #define TRCCIDCCTLR0 0x680 |
| #define TRCCIDCCTLR1 0x684 |
| #define TRCVMIDCCTLR0 0x688 |
| #define TRCVMIDCCTLR1 0x68C |
| /* Management register (0xF00) */ |
| /* Integration control registers */ |
| #define TRCITCTRL 0xF00 |
| /* Trace registers (0xFA0-0xFA4) */ |
| /* Claim tag registers */ |
| #define TRCCLAIMSET 0xFA0 |
| #define TRCCLAIMCLR 0xFA4 |
| /* Management registers (0xFA8-0xFFC) */ |
| #define TRCDEVAFF0 0xFA8 |
| #define TRCDEVAFF1 0xFAC |
| #define TRCLAR 0xFB0 |
| #define TRCLSR 0xFB4 |
| #define TRCAUTHSTATUS 0xFB8 |
| #define TRCDEVARCH 0xFBC |
| #define TRCDEVID 0xFC8 |
| #define TRCDEVTYPE 0xFCC |
| #define TRCPIDR4 0xFD0 |
| #define TRCPIDR5 0xFD4 |
| #define TRCPIDR6 0xFD8 |
| #define TRCPIDR7 0xFDC |
| #define TRCPIDR0 0xFE0 |
| #define TRCPIDR1 0xFE4 |
| #define TRCPIDR2 0xFE8 |
| #define TRCPIDR3 0xFEC |
| #define TRCCIDR0 0xFF0 |
| #define TRCCIDR1 0xFF4 |
| #define TRCCIDR2 0xFF8 |
| #define TRCCIDR3 0xFFC |
| |
| /* ETMv4 resources */ |
| #define ETM_MAX_NR_PE 8 |
| #define ETMv4_MAX_CNTR 4 |
| #define ETM_MAX_SEQ_STATES 4 |
| #define ETM_MAX_EXT_INP_SEL 4 |
| #define ETM_MAX_EXT_INP 256 |
| #define ETM_MAX_EXT_OUT 4 |
| #define ETM_MAX_SINGLE_ADDR_CMP 16 |
| #define ETM_MAX_ADDR_RANGE_CMP (ETM_MAX_SINGLE_ADDR_CMP / 2) |
| #define ETM_MAX_DATA_VAL_CMP 8 |
| #define ETMv4_MAX_CTXID_CMP 8 |
| #define ETM_MAX_VMID_CMP 8 |
| #define ETM_MAX_PE_CMP 8 |
| #define ETM_MAX_RES_SEL 16 |
| #define ETM_MAX_SS_CMP 8 |
| |
| #define ETM_ARCH_V4 0x40 |
| #define ETMv4_SYNC_MASK 0x1F |
| #define ETM_CYC_THRESHOLD_MASK 0xFFF |
| #define ETMv4_EVENT_MASK 0xFF |
| #define ETM_CNTR_MAX_VAL 0xFFFF |
| #define ETM_TRACEID_MASK 0x3f |
| |
| /* ETMv4 programming modes */ |
| #define ETM_MODE_EXCLUDE BIT(0) |
| #define ETM_MODE_LOAD BIT(1) |
| #define ETM_MODE_STORE BIT(2) |
| #define ETM_MODE_LOAD_STORE BIT(3) |
| #define ETM_MODE_BB BIT(4) |
| #define ETMv4_MODE_CYCACC BIT(5) |
| #define ETMv4_MODE_CTXID BIT(6) |
| #define ETM_MODE_VMID BIT(7) |
| #define ETM_MODE_COND(val) BMVAL(val, 8, 10) |
| #define ETMv4_MODE_TIMESTAMP BIT(11) |
| #define ETM_MODE_RETURNSTACK BIT(12) |
| #define ETM_MODE_QELEM(val) BMVAL(val, 13, 14) |
| #define ETM_MODE_DATA_TRACE_ADDR BIT(15) |
| #define ETM_MODE_DATA_TRACE_VAL BIT(16) |
| #define ETM_MODE_ISTALL BIT(17) |
| #define ETM_MODE_DSTALL BIT(18) |
| #define ETM_MODE_ATB_TRIGGER BIT(19) |
| #define ETM_MODE_LPOVERRIDE BIT(20) |
| #define ETM_MODE_ISTALL_EN BIT(21) |
| #define ETM_MODE_DSTALL_EN BIT(22) |
| #define ETM_MODE_INSTPRIO BIT(23) |
| #define ETM_MODE_NOOVERFLOW BIT(24) |
| #define ETM_MODE_TRACE_RESET BIT(25) |
| #define ETM_MODE_TRACE_ERR BIT(26) |
| #define ETM_MODE_VIEWINST_STARTSTOP BIT(27) |
| #define ETMv4_MODE_ALL (GENMASK(27, 0) | \ |
| ETM_MODE_EXCL_KERN | \ |
| ETM_MODE_EXCL_USER) |
| |
| #define TRCSTATR_IDLE_BIT 0 |
| #define ETM_DEFAULT_ADDR_COMP 0 |
| |
| /* PowerDown Control Register bits */ |
| #define TRCPDCR_PU BIT(3) |
| |
| /* secure state access levels */ |
| #define ETM_EXLEVEL_S_APP BIT(8) |
| #define ETM_EXLEVEL_S_OS BIT(9) |
| #define ETM_EXLEVEL_S_NA BIT(10) |
| #define ETM_EXLEVEL_S_HYP BIT(11) |
| /* non-secure state access levels */ |
| #define ETM_EXLEVEL_NS_APP BIT(12) |
| #define ETM_EXLEVEL_NS_OS BIT(13) |
| #define ETM_EXLEVEL_NS_HYP BIT(14) |
| #define ETM_EXLEVEL_NS_NA BIT(15) |
| |
| /** |
| * struct etmv4_config - configuration information related to an ETMv4 |
| * @mode: Controls various modes supported by this ETM. |
| * @pe_sel: Controls which PE to trace. |
| * @cfg: Controls the tracing options. |
| * @eventctrl0: Controls the tracing of arbitrary events. |
| * @eventctrl1: Controls the behavior of the events that @event_ctrl0 selects. |
| * @stallctl: If functionality that prevents trace unit buffer overflows |
| * is available. |
| * @ts_ctrl: Controls the insertion of global timestamps in the |
| * trace streams. |
| * @syncfreq: Controls how often trace synchronization requests occur. |
| * the TRCCCCTLR register. |
| * @ccctlr: Sets the threshold value for cycle counting. |
| * @vinst_ctrl: Controls instruction trace filtering. |
| * @viiectlr: Set or read, the address range comparators. |
| * @vissctlr: Set, or read, the single address comparators that control the |
| * ViewInst start-stop logic. |
| * @vipcssctlr: Set, or read, which PE comparator inputs can control the |
| * ViewInst start-stop logic. |
| * @seq_idx: Sequencor index selector. |
| * @seq_ctrl: Control for the sequencer state transition control register. |
| * @seq_rst: Moves the sequencer to state 0 when a programmed event occurs. |
| * @seq_state: Set, or read the sequencer state. |
| * @cntr_idx: Counter index seletor. |
| * @cntrldvr: Sets or returns the reload count value for a counter. |
| * @cntr_ctrl: Controls the operation of a counter. |
| * @cntr_val: Sets or returns the value for a counter. |
| * @res_idx: Resource index selector. |
| * @res_ctrl: Controls the selection of the resources in the trace unit. |
| * @ss_ctrl: Controls the corresponding single-shot comparator resource. |
| * @ss_status: The status of the corresponding single-shot comparator. |
| * @ss_pe_cmp: Selects the PE comparator inputs for Single-shot control. |
| * @addr_idx: Address comparator index selector. |
| * @addr_val: Value for address comparator. |
| * @addr_acc: Address comparator access type. |
| * @addr_type: Current status of the comparator register. |
| * @ctxid_idx: Context ID index selector. |
| * @ctxid_pid: Value of the context ID comparator. |
| * @ctxid_vpid: Virtual PID seen by users if PID namespace is enabled, otherwise |
| * the same value of ctxid_pid. |
| * @ctxid_mask0:Context ID comparator mask for comparator 0-3. |
| * @ctxid_mask1:Context ID comparator mask for comparator 4-7. |
| * @vmid_idx: VM ID index selector. |
| * @vmid_val: Value of the VM ID comparator. |
| * @vmid_mask0: VM ID comparator mask for comparator 0-3. |
| * @vmid_mask1: VM ID comparator mask for comparator 4-7. |
| * @ext_inp: External input selection. |
| */ |
| struct etmv4_config { |
| u32 mode; |
| u32 pe_sel; |
| u32 cfg; |
| u32 eventctrl0; |
| u32 eventctrl1; |
| u32 stall_ctrl; |
| u32 ts_ctrl; |
| u32 syncfreq; |
| u32 ccctlr; |
| u32 bb_ctrl; |
| u32 vinst_ctrl; |
| u32 viiectlr; |
| u32 vissctlr; |
| u32 vipcssctlr; |
| u8 seq_idx; |
| u32 seq_ctrl[ETM_MAX_SEQ_STATES]; |
| u32 seq_rst; |
| u32 seq_state; |
| u8 cntr_idx; |
| u32 cntrldvr[ETMv4_MAX_CNTR]; |
| u32 cntr_ctrl[ETMv4_MAX_CNTR]; |
| u32 cntr_val[ETMv4_MAX_CNTR]; |
| u8 res_idx; |
| u32 res_ctrl[ETM_MAX_RES_SEL]; |
| u32 ss_ctrl[ETM_MAX_SS_CMP]; |
| u32 ss_status[ETM_MAX_SS_CMP]; |
| u32 ss_pe_cmp[ETM_MAX_SS_CMP]; |
| u8 addr_idx; |
| u64 addr_val[ETM_MAX_SINGLE_ADDR_CMP]; |
| u64 addr_acc[ETM_MAX_SINGLE_ADDR_CMP]; |
| u8 addr_type[ETM_MAX_SINGLE_ADDR_CMP]; |
| u8 ctxid_idx; |
| u64 ctxid_pid[ETMv4_MAX_CTXID_CMP]; |
| u64 ctxid_vpid[ETMv4_MAX_CTXID_CMP]; |
| u32 ctxid_mask0; |
| u32 ctxid_mask1; |
| u8 vmid_idx; |
| u64 vmid_val[ETM_MAX_VMID_CMP]; |
| u32 vmid_mask0; |
| u32 vmid_mask1; |
| u32 ext_inp; |
| }; |
| |
| /** |
| * struct etm4_drvdata - specifics associated to an ETM component |
| * @base: Memory mapped base address for this component. |
| * @dev: The device entity associated to this component. |
| * @csdev: Component vitals needed by the framework. |
| * @spinlock: Only one at a time pls. |
| * @mode: This tracer's mode, i.e sysFS, Perf or disabled. |
| * @cpu: The cpu this component is affined to. |
| * @arch: ETM version number. |
| * @nr_pe: The number of processing entity available for tracing. |
| * @nr_pe_cmp: The number of processing entity comparator inputs that are |
| * available for tracing. |
| * @nr_addr_cmp:Number of pairs of address comparators available |
| * as found in ETMIDR4 0-3. |
| * @nr_cntr: Number of counters as found in ETMIDR5 bit 28-30. |
| * @nr_ext_inp: Number of external input. |
| * @numcidc: Number of contextID comparators. |
| * @numvmidc: Number of VMID comparators. |
| * @nrseqstate: The number of sequencer states that are implemented. |
| * @nr_event: Indicates how many events the trace unit support. |
| * @nr_resource:The number of resource selection pairs available for tracing. |
| * @nr_ss_cmp: Number of single-shot comparator controls that are available. |
| * @trcid: value of the current ID for this component. |
| * @trcid_size: Indicates the trace ID width. |
| * @ts_size: Global timestamp size field. |
| * @ctxid_size: Size of the context ID field to consider. |
| * @vmid_size: Size of the VM ID comparator to consider. |
| * @ccsize: Indicates the size of the cycle counter in bits. |
| * @ccitmin: minimum value that can be programmed in |
| * @s_ex_level: In secure state, indicates whether instruction tracing is |
| * supported for the corresponding Exception level. |
| * @ns_ex_level:In non-secure state, indicates whether instruction tracing is |
| * supported for the corresponding Exception level. |
| * @sticky_enable: true if ETM base configuration has been done. |
| * @boot_enable:True if we should start tracing at boot time. |
| * @os_unlock: True if access to management registers is allowed. |
| * @instrp0: Tracing of load and store instructions |
| * as P0 elements is supported. |
| * @trcbb: Indicates if the trace unit supports branch broadcast tracing. |
| * @trccond: If the trace unit supports conditional |
| * instruction tracing. |
| * @retstack: Indicates if the implementation supports a return stack. |
| * @trccci: Indicates if the trace unit supports cycle counting |
| * for instruction. |
| * @q_support: Q element support characteristics. |
| * @trc_error: Whether a trace unit can trace a system |
| * error exception. |
| * @syncpr: Indicates if an implementation has a fixed |
| * synchronization period. |
| * @stall_ctrl: Enables trace unit functionality that prevents trace |
| * unit buffer overflows. |
| * @sysstall: Does the system support stall control of the PE? |
| * @nooverflow: Indicate if overflow prevention is supported. |
| * @atbtrig: If the implementation can support ATB triggers |
| * @lpoverride: If the implementation can support low-power state over. |
| * @config: structure holding configuration parameters. |
| */ |
| struct etmv4_drvdata { |
| void __iomem *base; |
| struct device *dev; |
| struct coresight_device *csdev; |
| spinlock_t spinlock; |
| local_t mode; |
| int cpu; |
| u8 arch; |
| u8 nr_pe; |
| u8 nr_pe_cmp; |
| u8 nr_addr_cmp; |
| u8 nr_cntr; |
| u8 nr_ext_inp; |
| u8 numcidc; |
| u8 numvmidc; |
| u8 nrseqstate; |
| u8 nr_event; |
| u8 nr_resource; |
| u8 nr_ss_cmp; |
| u8 trcid; |
| u8 trcid_size; |
| u8 ts_size; |
| u8 ctxid_size; |
| u8 vmid_size; |
| u8 ccsize; |
| u8 ccitmin; |
| u8 s_ex_level; |
| u8 ns_ex_level; |
| u8 q_support; |
| bool sticky_enable; |
| bool boot_enable; |
| bool os_unlock; |
| bool instrp0; |
| bool trcbb; |
| bool trccond; |
| bool retstack; |
| bool trccci; |
| bool trc_error; |
| bool syncpr; |
| bool stallctl; |
| bool sysstall; |
| bool nooverflow; |
| bool atbtrig; |
| bool lpoverride; |
| struct etmv4_config config; |
| }; |
| |
| /* Address comparator access types */ |
| enum etm_addr_acctype { |
| ETM_INSTR_ADDR, |
| ETM_DATA_LOAD_ADDR, |
| ETM_DATA_STORE_ADDR, |
| ETM_DATA_LOAD_STORE_ADDR, |
| }; |
| |
| /* Address comparator context types */ |
| enum etm_addr_ctxtype { |
| ETM_CTX_NONE, |
| ETM_CTX_CTXID, |
| ETM_CTX_VMID, |
| ETM_CTX_CTXID_VMID, |
| }; |
| |
| extern const struct attribute_group *coresight_etmv4_groups[]; |
| void etm4_config_trace_mode(struct etmv4_config *config); |
| #endif |
