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xemu/hw/arm/smmuv3-internal.h
Peter Maydell f8e7163d9e hw/arm/smmuv3: Advertise support for SMMUv3.2-BBML2 
The Arm SMMUv3 includes an optional feature equivalent to the CPU
FEAT_BBM, which permits an OS to switch a range of memory between
"covered by a huge page" and "covered by a sequence of normal pages"
without having to engage in the traditional 'break-before-make'
dance. (This is particularly important for the SMMU, because devices
performing I/O through an SMMU are less likely to be able to cope with
the window in the sequence where an access results in a translation
fault.)  The SMMU spec explicitly notes that one of the valid ways to
be a BBM level 2 compliant implementation is:
 * if there are multiple entries in the TLB for an address,
   choose one of them and use it, ignoring the others

Our SMMU TLB implementation (unlike our CPU TLB) does allow multiple
TLB entries for an address, because the translation table level is
part of the SMMUIOTLBKey, and so our IOTLB hashtable can include
entries for the same address where the leaf was at different levels
(i.e. both hugepage and normal page). Our TLB lookup implementation in
smmu_iotlb_lookup() will always find the entry with the lowest level
(i.e. it prefers the hugepage over the normal page) and ignore any
others. TLB invalidation correctly removes all TLB entries matching
the specified address or address range (unless the guest specifies the
leaf level explicitly, in which case it gets what it asked for). So we
can validly advertise support for BBML level 2.

Note that we still can't yet advertise ourselves as an SMMU v3.2,
because v3.2 requires support for the S2FWB feature, which we don't
yet implement.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-id: 20220426160422.2353158-4-peter.maydell@linaro.org
2022-04-28 13:59:23 +01:00

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/*
* ARM SMMUv3 support - Internal API
*
* Copyright (C) 2014-2016 Broadcom Corporation
* Copyright (c) 2017 Red Hat, Inc.
* Written by Prem Mallappa, Eric Auger
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License 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.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef HW_ARM_SMMUV3_INTERNAL_H
#define HW_ARM_SMMUV3_INTERNAL_H
#include "hw/arm/smmu-common.h"
typedef enum SMMUTranslationStatus {
SMMU_TRANS_DISABLE,
SMMU_TRANS_ABORT,
SMMU_TRANS_BYPASS,
SMMU_TRANS_ERROR,
SMMU_TRANS_SUCCESS,
} SMMUTranslationStatus;
/* MMIO Registers */
REG32(IDR0, 0x0)
FIELD(IDR0, S1P, 1 , 1)
FIELD(IDR0, TTF, 2 , 2)
FIELD(IDR0, COHACC, 4 , 1)
FIELD(IDR0, ASID16, 12, 1)
FIELD(IDR0, TTENDIAN, 21, 2)
FIELD(IDR0, STALL_MODEL, 24, 2)
FIELD(IDR0, TERM_MODEL, 26, 1)
FIELD(IDR0, STLEVEL, 27, 2)
REG32(IDR1, 0x4)
FIELD(IDR1, SIDSIZE, 0 , 6)
FIELD(IDR1, EVENTQS, 16, 5)
FIELD(IDR1, CMDQS, 21, 5)
#define SMMU_IDR1_SIDSIZE 16
#define SMMU_CMDQS 19
#define SMMU_EVENTQS 19
REG32(IDR2, 0x8)
REG32(IDR3, 0xc)
FIELD(IDR3, HAD, 2, 1);
FIELD(IDR3, RIL, 10, 1);
FIELD(IDR3, BBML, 11, 2);
REG32(IDR4, 0x10)
REG32(IDR5, 0x14)
FIELD(IDR5, OAS, 0, 3);
FIELD(IDR5, GRAN4K, 4, 1);
FIELD(IDR5, GRAN16K, 5, 1);
FIELD(IDR5, GRAN64K, 6, 1);
#define SMMU_IDR5_OAS 4
REG32(IIDR, 0x18)
REG32(AIDR, 0x1c)
REG32(CR0, 0x20)
FIELD(CR0, SMMU_ENABLE, 0, 1)
FIELD(CR0, EVENTQEN, 2, 1)
FIELD(CR0, CMDQEN, 3, 1)
#define SMMU_CR0_RESERVED 0xFFFFFC20
REG32(CR0ACK, 0x24)
REG32(CR1, 0x28)
REG32(CR2, 0x2c)
REG32(STATUSR, 0x40)
REG32(IRQ_CTRL, 0x50)
FIELD(IRQ_CTRL, GERROR_IRQEN, 0, 1)
FIELD(IRQ_CTRL, PRI_IRQEN, 1, 1)
FIELD(IRQ_CTRL, EVENTQ_IRQEN, 2, 1)
REG32(IRQ_CTRL_ACK, 0x54)
REG32(GERROR, 0x60)
FIELD(GERROR, CMDQ_ERR, 0, 1)
FIELD(GERROR, EVENTQ_ABT_ERR, 2, 1)
FIELD(GERROR, PRIQ_ABT_ERR, 3, 1)
FIELD(GERROR, MSI_CMDQ_ABT_ERR, 4, 1)
FIELD(GERROR, MSI_EVENTQ_ABT_ERR, 5, 1)
FIELD(GERROR, MSI_PRIQ_ABT_ERR, 6, 1)
FIELD(GERROR, MSI_GERROR_ABT_ERR, 7, 1)
FIELD(GERROR, MSI_SFM_ERR, 8, 1)
REG32(GERRORN, 0x64)
#define A_GERROR_IRQ_CFG0 0x68 /* 64b */
REG32(GERROR_IRQ_CFG1, 0x70)
REG32(GERROR_IRQ_CFG2, 0x74)
#define A_STRTAB_BASE 0x80 /* 64b */
#define SMMU_BASE_ADDR_MASK 0xfffffffffffc0
REG32(STRTAB_BASE_CFG, 0x88)
FIELD(STRTAB_BASE_CFG, FMT, 16, 2)
FIELD(STRTAB_BASE_CFG, SPLIT, 6 , 5)
FIELD(STRTAB_BASE_CFG, LOG2SIZE, 0 , 6)
#define A_CMDQ_BASE 0x90 /* 64b */
REG32(CMDQ_PROD, 0x98)
REG32(CMDQ_CONS, 0x9c)
FIELD(CMDQ_CONS, ERR, 24, 7)
#define A_EVENTQ_BASE 0xa0 /* 64b */
REG32(EVENTQ_PROD, 0xa8)
REG32(EVENTQ_CONS, 0xac)
#define A_EVENTQ_IRQ_CFG0 0xb0 /* 64b */
REG32(EVENTQ_IRQ_CFG1, 0xb8)
REG32(EVENTQ_IRQ_CFG2, 0xbc)
#define A_IDREGS 0xfd0
static inline int smmu_enabled(SMMUv3State *s)
{
return FIELD_EX32(s->cr[0], CR0, SMMU_ENABLE);
}
/* Command Queue Entry */
typedef struct Cmd {
uint32_t word[4];
} Cmd;
/* Event Queue Entry */
typedef struct Evt {
uint32_t word[8];
} Evt;
static inline uint32_t smmuv3_idreg(int regoffset)
{
/*
* Return the value of the Primecell/Corelink ID registers at the
* specified offset from the first ID register.
* These value indicate an ARM implementation of MMU600 p1
*/
static const uint8_t smmuv3_ids[] = {
0x04, 0, 0, 0, 0x84, 0xB4, 0xF0, 0x10, 0x0D, 0xF0, 0x05, 0xB1
};
return smmuv3_ids[regoffset / 4];
}
static inline bool smmuv3_eventq_irq_enabled(SMMUv3State *s)
{
return FIELD_EX32(s->irq_ctrl, IRQ_CTRL, EVENTQ_IRQEN);
}
static inline bool smmuv3_gerror_irq_enabled(SMMUv3State *s)
{
return FIELD_EX32(s->irq_ctrl, IRQ_CTRL, GERROR_IRQEN);
}
/* Queue Handling */
#define Q_BASE(q) ((q)->base & SMMU_BASE_ADDR_MASK)
#define WRAP_MASK(q) (1 << (q)->log2size)
#define INDEX_MASK(q) (((1 << (q)->log2size)) - 1)
#define WRAP_INDEX_MASK(q) ((1 << ((q)->log2size + 1)) - 1)
#define Q_CONS(q) ((q)->cons & INDEX_MASK(q))
#define Q_PROD(q) ((q)->prod & INDEX_MASK(q))
#define Q_CONS_ENTRY(q) (Q_BASE(q) + (q)->entry_size * Q_CONS(q))
#define Q_PROD_ENTRY(q) (Q_BASE(q) + (q)->entry_size * Q_PROD(q))
#define Q_CONS_WRAP(q) (((q)->cons & WRAP_MASK(q)) >> (q)->log2size)
#define Q_PROD_WRAP(q) (((q)->prod & WRAP_MASK(q)) >> (q)->log2size)
static inline bool smmuv3_q_full(SMMUQueue *q)
{
return ((q->cons ^ q->prod) & WRAP_INDEX_MASK(q)) == WRAP_MASK(q);
}
static inline bool smmuv3_q_empty(SMMUQueue *q)
{
return (q->cons & WRAP_INDEX_MASK(q)) == (q->prod & WRAP_INDEX_MASK(q));
}
static inline void queue_prod_incr(SMMUQueue *q)
{
q->prod = (q->prod + 1) & WRAP_INDEX_MASK(q);
}
static inline void queue_cons_incr(SMMUQueue *q)
{
/*
* We have to use deposit for the CONS registers to preserve
* the ERR field in the high bits.
*/
q->cons = deposit32(q->cons, 0, q->log2size + 1, q->cons + 1);
}
static inline bool smmuv3_cmdq_enabled(SMMUv3State *s)
{
return FIELD_EX32(s->cr[0], CR0, CMDQEN);
}
static inline bool smmuv3_eventq_enabled(SMMUv3State *s)
{
return FIELD_EX32(s->cr[0], CR0, EVENTQEN);
}
static inline void smmu_write_cmdq_err(SMMUv3State *s, uint32_t err_type)
{
s->cmdq.cons = FIELD_DP32(s->cmdq.cons, CMDQ_CONS, ERR, err_type);
}
/* Commands */
typedef enum SMMUCommandType {
SMMU_CMD_NONE = 0x00,
SMMU_CMD_PREFETCH_CONFIG ,
SMMU_CMD_PREFETCH_ADDR,
SMMU_CMD_CFGI_STE,
SMMU_CMD_CFGI_STE_RANGE,
SMMU_CMD_CFGI_CD,
SMMU_CMD_CFGI_CD_ALL,
SMMU_CMD_CFGI_ALL,
SMMU_CMD_TLBI_NH_ALL = 0x10,
SMMU_CMD_TLBI_NH_ASID,
SMMU_CMD_TLBI_NH_VA,
SMMU_CMD_TLBI_NH_VAA,
SMMU_CMD_TLBI_EL3_ALL = 0x18,
SMMU_CMD_TLBI_EL3_VA = 0x1a,
SMMU_CMD_TLBI_EL2_ALL = 0x20,
SMMU_CMD_TLBI_EL2_ASID,
SMMU_CMD_TLBI_EL2_VA,
SMMU_CMD_TLBI_EL2_VAA,
SMMU_CMD_TLBI_S12_VMALL = 0x28,
SMMU_CMD_TLBI_S2_IPA = 0x2a,
SMMU_CMD_TLBI_NSNH_ALL = 0x30,
SMMU_CMD_ATC_INV = 0x40,
SMMU_CMD_PRI_RESP,
SMMU_CMD_RESUME = 0x44,
SMMU_CMD_STALL_TERM,
SMMU_CMD_SYNC,
} SMMUCommandType;
static const char *cmd_stringify[] = {
[SMMU_CMD_PREFETCH_CONFIG] = "SMMU_CMD_PREFETCH_CONFIG",
[SMMU_CMD_PREFETCH_ADDR] = "SMMU_CMD_PREFETCH_ADDR",
[SMMU_CMD_CFGI_STE] = "SMMU_CMD_CFGI_STE",
[SMMU_CMD_CFGI_STE_RANGE] = "SMMU_CMD_CFGI_STE_RANGE",
[SMMU_CMD_CFGI_CD] = "SMMU_CMD_CFGI_CD",
[SMMU_CMD_CFGI_CD_ALL] = "SMMU_CMD_CFGI_CD_ALL",
[SMMU_CMD_CFGI_ALL] = "SMMU_CMD_CFGI_ALL",
[SMMU_CMD_TLBI_NH_ALL] = "SMMU_CMD_TLBI_NH_ALL",
[SMMU_CMD_TLBI_NH_ASID] = "SMMU_CMD_TLBI_NH_ASID",
[SMMU_CMD_TLBI_NH_VA] = "SMMU_CMD_TLBI_NH_VA",
[SMMU_CMD_TLBI_NH_VAA] = "SMMU_CMD_TLBI_NH_VAA",
[SMMU_CMD_TLBI_EL3_ALL] = "SMMU_CMD_TLBI_EL3_ALL",
[SMMU_CMD_TLBI_EL3_VA] = "SMMU_CMD_TLBI_EL3_VA",
[SMMU_CMD_TLBI_EL2_ALL] = "SMMU_CMD_TLBI_EL2_ALL",
[SMMU_CMD_TLBI_EL2_ASID] = "SMMU_CMD_TLBI_EL2_ASID",
[SMMU_CMD_TLBI_EL2_VA] = "SMMU_CMD_TLBI_EL2_VA",
[SMMU_CMD_TLBI_EL2_VAA] = "SMMU_CMD_TLBI_EL2_VAA",
[SMMU_CMD_TLBI_S12_VMALL] = "SMMU_CMD_TLBI_S12_VMALL",
[SMMU_CMD_TLBI_S2_IPA] = "SMMU_CMD_TLBI_S2_IPA",
[SMMU_CMD_TLBI_NSNH_ALL] = "SMMU_CMD_TLBI_NSNH_ALL",
[SMMU_CMD_ATC_INV] = "SMMU_CMD_ATC_INV",
[SMMU_CMD_PRI_RESP] = "SMMU_CMD_PRI_RESP",
[SMMU_CMD_RESUME] = "SMMU_CMD_RESUME",
[SMMU_CMD_STALL_TERM] = "SMMU_CMD_STALL_TERM",
[SMMU_CMD_SYNC] = "SMMU_CMD_SYNC",
};
static inline const char *smmu_cmd_string(SMMUCommandType type)
{
if (type > SMMU_CMD_NONE && type < ARRAY_SIZE(cmd_stringify)) {
return cmd_stringify[type] ? cmd_stringify[type] : "UNKNOWN";
} else {
return "INVALID";
}
}
/* CMDQ fields */
typedef enum {
SMMU_CERROR_NONE = 0,
SMMU_CERROR_ILL,
SMMU_CERROR_ABT,
SMMU_CERROR_ATC_INV_SYNC,
} SMMUCmdError;
enum { /* Command completion notification */
CMD_SYNC_SIG_NONE,
CMD_SYNC_SIG_IRQ,
CMD_SYNC_SIG_SEV,
};
#define CMD_TYPE(x) extract32((x)->word[0], 0 , 8)
#define CMD_NUM(x) extract32((x)->word[0], 12 , 5)
#define CMD_SCALE(x) extract32((x)->word[0], 20 , 5)
#define CMD_SSEC(x) extract32((x)->word[0], 10, 1)
#define CMD_SSV(x) extract32((x)->word[0], 11, 1)
#define CMD_RESUME_AC(x) extract32((x)->word[0], 12, 1)
#define CMD_RESUME_AB(x) extract32((x)->word[0], 13, 1)
#define CMD_SYNC_CS(x) extract32((x)->word[0], 12, 2)
#define CMD_SSID(x) extract32((x)->word[0], 12, 20)
#define CMD_SID(x) ((x)->word[1])
#define CMD_VMID(x) extract32((x)->word[1], 0 , 16)
#define CMD_ASID(x) extract32((x)->word[1], 16, 16)
#define CMD_RESUME_STAG(x) extract32((x)->word[2], 0 , 16)
#define CMD_RESP(x) extract32((x)->word[2], 11, 2)
#define CMD_LEAF(x) extract32((x)->word[2], 0 , 1)
#define CMD_TTL(x) extract32((x)->word[2], 8 , 2)
#define CMD_TG(x) extract32((x)->word[2], 10, 2)
#define CMD_STE_RANGE(x) extract32((x)->word[2], 0 , 5)
#define CMD_ADDR(x) ({ \
uint64_t high = (uint64_t)(x)->word[3]; \
uint64_t low = extract32((x)->word[2], 12, 20); \
uint64_t addr = high << 32 | (low << 12); \
addr; \
})
#define SMMU_FEATURE_2LVL_STE (1 << 0)
/* Events */
typedef enum SMMUEventType {
SMMU_EVT_NONE = 0x00,
SMMU_EVT_F_UUT ,
SMMU_EVT_C_BAD_STREAMID ,
SMMU_EVT_F_STE_FETCH ,
SMMU_EVT_C_BAD_STE ,
SMMU_EVT_F_BAD_ATS_TREQ ,
SMMU_EVT_F_STREAM_DISABLED ,
SMMU_EVT_F_TRANS_FORBIDDEN ,
SMMU_EVT_C_BAD_SUBSTREAMID ,
SMMU_EVT_F_CD_FETCH ,
SMMU_EVT_C_BAD_CD ,
SMMU_EVT_F_WALK_EABT ,
SMMU_EVT_F_TRANSLATION = 0x10,
SMMU_EVT_F_ADDR_SIZE ,
SMMU_EVT_F_ACCESS ,
SMMU_EVT_F_PERMISSION ,
SMMU_EVT_F_TLB_CONFLICT = 0x20,
SMMU_EVT_F_CFG_CONFLICT ,
SMMU_EVT_E_PAGE_REQ = 0x24,
} SMMUEventType;
static const char *event_stringify[] = {
[SMMU_EVT_NONE] = "no recorded event",
[SMMU_EVT_F_UUT] = "SMMU_EVT_F_UUT",
[SMMU_EVT_C_BAD_STREAMID] = "SMMU_EVT_C_BAD_STREAMID",
[SMMU_EVT_F_STE_FETCH] = "SMMU_EVT_F_STE_FETCH",
[SMMU_EVT_C_BAD_STE] = "SMMU_EVT_C_BAD_STE",
[SMMU_EVT_F_BAD_ATS_TREQ] = "SMMU_EVT_F_BAD_ATS_TREQ",
[SMMU_EVT_F_STREAM_DISABLED] = "SMMU_EVT_F_STREAM_DISABLED",
[SMMU_EVT_F_TRANS_FORBIDDEN] = "SMMU_EVT_F_TRANS_FORBIDDEN",
[SMMU_EVT_C_BAD_SUBSTREAMID] = "SMMU_EVT_C_BAD_SUBSTREAMID",
[SMMU_EVT_F_CD_FETCH] = "SMMU_EVT_F_CD_FETCH",
[SMMU_EVT_C_BAD_CD] = "SMMU_EVT_C_BAD_CD",
[SMMU_EVT_F_WALK_EABT] = "SMMU_EVT_F_WALK_EABT",
[SMMU_EVT_F_TRANSLATION] = "SMMU_EVT_F_TRANSLATION",
[SMMU_EVT_F_ADDR_SIZE] = "SMMU_EVT_F_ADDR_SIZE",
[SMMU_EVT_F_ACCESS] = "SMMU_EVT_F_ACCESS",
[SMMU_EVT_F_PERMISSION] = "SMMU_EVT_F_PERMISSION",
[SMMU_EVT_F_TLB_CONFLICT] = "SMMU_EVT_F_TLB_CONFLICT",
[SMMU_EVT_F_CFG_CONFLICT] = "SMMU_EVT_F_CFG_CONFLICT",
[SMMU_EVT_E_PAGE_REQ] = "SMMU_EVT_E_PAGE_REQ",
};
static inline const char *smmu_event_string(SMMUEventType type)
{
if (type < ARRAY_SIZE(event_stringify)) {
return event_stringify[type] ? event_stringify[type] : "UNKNOWN";
} else {
return "INVALID";
}
}
/* Encode an event record */
typedef struct SMMUEventInfo {
SMMUEventType type;
uint32_t sid;
bool recorded;
bool inval_ste_allowed;
union {
struct {
uint32_t ssid;
bool ssv;
dma_addr_t addr;
bool rnw;
bool pnu;
bool ind;
} f_uut;
struct SSIDInfo {
uint32_t ssid;
bool ssv;
} c_bad_streamid;
struct SSIDAddrInfo {
uint32_t ssid;
bool ssv;
dma_addr_t addr;
} f_ste_fetch;
struct SSIDInfo c_bad_ste;
struct {
dma_addr_t addr;
bool rnw;
} f_transl_forbidden;
struct {
uint32_t ssid;
} c_bad_substream;
struct SSIDAddrInfo f_cd_fetch;
struct SSIDInfo c_bad_cd;
struct FullInfo {
bool stall;
uint16_t stag;
uint32_t ssid;
bool ssv;
bool s2;
dma_addr_t addr;
bool rnw;
bool pnu;
bool ind;
uint8_t class;
dma_addr_t addr2;
} f_walk_eabt;
struct FullInfo f_translation;
struct FullInfo f_addr_size;
struct FullInfo f_access;
struct FullInfo f_permission;
struct SSIDInfo f_cfg_conflict;
/**
* not supported yet:
* F_BAD_ATS_TREQ
* F_BAD_ATS_TREQ
* F_TLB_CONFLICT
* E_PAGE_REQUEST
* IMPDEF_EVENTn
*/
} u;
} SMMUEventInfo;
/* EVTQ fields */
#define EVT_Q_OVERFLOW (1 << 31)
#define EVT_SET_TYPE(x, v) ((x)->word[0] = deposit32((x)->word[0], 0 , 8 , v))
#define EVT_SET_SSV(x, v) ((x)->word[0] = deposit32((x)->word[0], 11, 1 , v))
#define EVT_SET_SSID(x, v) ((x)->word[0] = deposit32((x)->word[0], 12, 20, v))
#define EVT_SET_SID(x, v) ((x)->word[1] = v)
#define EVT_SET_STAG(x, v) ((x)->word[2] = deposit32((x)->word[2], 0 , 16, v))
#define EVT_SET_STALL(x, v) ((x)->word[2] = deposit32((x)->word[2], 31, 1 , v))
#define EVT_SET_PNU(x, v) ((x)->word[3] = deposit32((x)->word[3], 1 , 1 , v))
#define EVT_SET_IND(x, v) ((x)->word[3] = deposit32((x)->word[3], 2 , 1 , v))
#define EVT_SET_RNW(x, v) ((x)->word[3] = deposit32((x)->word[3], 3 , 1 , v))
#define EVT_SET_S2(x, v) ((x)->word[3] = deposit32((x)->word[3], 7 , 1 , v))
#define EVT_SET_CLASS(x, v) ((x)->word[3] = deposit32((x)->word[3], 8 , 2 , v))
#define EVT_SET_ADDR(x, addr) \
do { \
(x)->word[5] = (uint32_t)(addr >> 32); \
(x)->word[4] = (uint32_t)(addr & 0xffffffff); \
} while (0)
#define EVT_SET_ADDR2(x, addr) \
do { \
(x)->word[7] = (uint32_t)(addr >> 32); \
(x)->word[6] = (uint32_t)(addr & 0xffffffff); \
} while (0)
void smmuv3_record_event(SMMUv3State *s, SMMUEventInfo *event);
/* Configuration Data */
/* STE Level 1 Descriptor */
typedef struct STEDesc {
uint32_t word[2];
} STEDesc;
/* CD Level 1 Descriptor */
typedef struct CDDesc {
uint32_t word[2];
} CDDesc;
/* Stream Table Entry(STE) */
typedef struct STE {
uint32_t word[16];
} STE;
/* Context Descriptor(CD) */
typedef struct CD {
uint32_t word[16];
} CD;
/* STE fields */
#define STE_VALID(x) extract32((x)->word[0], 0, 1)
#define STE_CONFIG(x) extract32((x)->word[0], 1, 3)
#define STE_CFG_S1_ENABLED(config) (config & 0x1)
#define STE_CFG_S2_ENABLED(config) (config & 0x2)
#define STE_CFG_ABORT(config) (!(config & 0x4))
#define STE_CFG_BYPASS(config) (config == 0x4)
#define STE_S1FMT(x) extract32((x)->word[0], 4 , 2)
#define STE_S1CDMAX(x) extract32((x)->word[1], 27, 5)
#define STE_S1STALLD(x) extract32((x)->word[2], 27, 1)
#define STE_EATS(x) extract32((x)->word[2], 28, 2)
#define STE_STRW(x) extract32((x)->word[2], 30, 2)
#define STE_S2VMID(x) extract32((x)->word[4], 0 , 16)
#define STE_S2T0SZ(x) extract32((x)->word[5], 0 , 6)
#define STE_S2SL0(x) extract32((x)->word[5], 6 , 2)
#define STE_S2TG(x) extract32((x)->word[5], 14, 2)
#define STE_S2PS(x) extract32((x)->word[5], 16, 3)
#define STE_S2AA64(x) extract32((x)->word[5], 19, 1)
#define STE_S2HD(x) extract32((x)->word[5], 24, 1)
#define STE_S2HA(x) extract32((x)->word[5], 25, 1)
#define STE_S2S(x) extract32((x)->word[5], 26, 1)
#define STE_CTXPTR(x) \
({ \
unsigned long addr; \
addr = (uint64_t)extract32((x)->word[1], 0, 16) << 32; \
addr |= (uint64_t)((x)->word[0] & 0xffffffc0); \
addr; \
})
#define STE_S2TTB(x) \
({ \
unsigned long addr; \
addr = (uint64_t)extract32((x)->word[7], 0, 16) << 32; \
addr |= (uint64_t)((x)->word[6] & 0xfffffff0); \
addr; \
})
static inline int oas2bits(int oas_field)
{
switch (oas_field) {
case 0:
return 32;
case 1:
return 36;
case 2:
return 40;
case 3:
return 42;
case 4:
return 44;
case 5:
return 48;
}
return -1;
}
static inline int pa_range(STE *ste)
{
int oas_field = MIN(STE_S2PS(ste), SMMU_IDR5_OAS);
if (!STE_S2AA64(ste)) {
return 40;
}
return oas2bits(oas_field);
}
#define MAX_PA(ste) ((1 << pa_range(ste)) - 1)
/* CD fields */
#define CD_VALID(x) extract32((x)->word[0], 31, 1)
#define CD_ASID(x) extract32((x)->word[1], 16, 16)
#define CD_TTB(x, sel) \
({ \
uint64_t hi, lo; \
hi = extract32((x)->word[(sel) * 2 + 3], 0, 19); \
hi <<= 32; \
lo = (x)->word[(sel) * 2 + 2] & ~0xfULL; \
hi | lo; \
})
#define CD_HAD(x, sel) extract32((x)->word[(sel) * 2 + 2], 1, 1)
#define CD_TSZ(x, sel) extract32((x)->word[0], (16 * (sel)) + 0, 6)
#define CD_TG(x, sel) extract32((x)->word[0], (16 * (sel)) + 6, 2)
#define CD_EPD(x, sel) extract32((x)->word[0], (16 * (sel)) + 14, 1)
#define CD_ENDI(x) extract32((x)->word[0], 15, 1)
#define CD_IPS(x) extract32((x)->word[1], 0 , 3)
#define CD_TBI(x) extract32((x)->word[1], 6 , 2)
#define CD_HD(x) extract32((x)->word[1], 10 , 1)
#define CD_HA(x) extract32((x)->word[1], 11 , 1)
#define CD_S(x) extract32((x)->word[1], 12, 1)
#define CD_R(x) extract32((x)->word[1], 13, 1)
#define CD_A(x) extract32((x)->word[1], 14, 1)
#define CD_AARCH64(x) extract32((x)->word[1], 9 , 1)
/**
* tg2granule - Decodes the CD translation granule size field according
* to the ttbr in use
* @bits: TG0/1 fields
* @ttbr: ttbr index in use
*/
static inline int tg2granule(int bits, int ttbr)
{
switch (bits) {
case 0:
return ttbr ? 0 : 12;
case 1:
return ttbr ? 14 : 16;
case 2:
return ttbr ? 12 : 14;
case 3:
return ttbr ? 16 : 0;
default:
return 0;
}
}
static inline uint64_t l1std_l2ptr(STEDesc *desc)
{
uint64_t hi, lo;
hi = desc->word[1];
lo = desc->word[0] & ~0x1fULL;
return hi << 32 | lo;
}
#define L1STD_SPAN(stm) (extract32((stm)->word[0], 0, 5))
#endif
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