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ubuntu-linux-kernel/drivers/iommu/fsl_pamu.h

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2024-04-01 15:06:58 +00:00
/*
* 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, write to the Free Software
* Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Copyright (C) 2013 Freescale Semiconductor, Inc.
*
*/
#ifndef __FSL_PAMU_H
#define __FSL_PAMU_H
#include <linux/iommu.h>
#include <linux/pci.h>
#include <asm/fsl_pamu_stash.h>
/* Bit Field macros
* v = bit field variable; m = mask, m##_SHIFT = shift, x = value to load
*/
#define set_bf(v, m, x) (v = ((v) & ~(m)) | (((x) << m##_SHIFT) & (m)))
#define get_bf(v, m) (((v) & (m)) >> m##_SHIFT)
/* PAMU CCSR space */
#define PAMU_PGC 0x00000000 /* Allows all peripheral accesses */
#define PAMU_PE 0x40000000 /* enable PAMU */
/* PAMU_OFFSET to the next pamu space in ccsr */
#define PAMU_OFFSET 0x1000
#define PAMU_MMAP_REGS_BASE 0
struct pamu_mmap_regs {
u32 ppbah;
u32 ppbal;
u32 pplah;
u32 pplal;
u32 spbah;
u32 spbal;
u32 splah;
u32 splal;
u32 obah;
u32 obal;
u32 olah;
u32 olal;
};
/* PAMU Error Registers */
#define PAMU_POES1 0x0040
#define PAMU_POES2 0x0044
#define PAMU_POEAH 0x0048
#define PAMU_POEAL 0x004C
#define PAMU_AVS1 0x0050
#define PAMU_AVS1_AV 0x1
#define PAMU_AVS1_OTV 0x6
#define PAMU_AVS1_APV 0x78
#define PAMU_AVS1_WAV 0x380
#define PAMU_AVS1_LAV 0x1c00
#define PAMU_AVS1_GCV 0x2000
#define PAMU_AVS1_PDV 0x4000
#define PAMU_AV_MASK (PAMU_AVS1_AV | PAMU_AVS1_OTV | PAMU_AVS1_APV | PAMU_AVS1_WAV \
| PAMU_AVS1_LAV | PAMU_AVS1_GCV | PAMU_AVS1_PDV)
#define PAMU_AVS1_LIODN_SHIFT 16
#define PAMU_LAV_LIODN_NOT_IN_PPAACT 0x400
#define PAMU_AVS2 0x0054
#define PAMU_AVAH 0x0058
#define PAMU_AVAL 0x005C
#define PAMU_EECTL 0x0060
#define PAMU_EEDIS 0x0064
#define PAMU_EEINTEN 0x0068
#define PAMU_EEDET 0x006C
#define PAMU_EEATTR 0x0070
#define PAMU_EEAHI 0x0074
#define PAMU_EEALO 0x0078
#define PAMU_EEDHI 0X007C
#define PAMU_EEDLO 0x0080
#define PAMU_EECC 0x0084
#define PAMU_UDAD 0x0090
/* PAMU Revision Registers */
#define PAMU_PR1 0x0BF8
#define PAMU_PR2 0x0BFC
/* PAMU version mask */
#define PAMU_PR1_MASK 0xffff
/* PAMU Capabilities Registers */
#define PAMU_PC1 0x0C00
#define PAMU_PC2 0x0C04
#define PAMU_PC3 0x0C08
#define PAMU_PC4 0x0C0C
/* PAMU Control Register */
#define PAMU_PC 0x0C10
/* PAMU control defs */
#define PAMU_CONTROL 0x0C10
#define PAMU_PC_PGC 0x80000000 /* PAMU gate closed bit */
#define PAMU_PC_PE 0x40000000 /* PAMU enable bit */
#define PAMU_PC_SPCC 0x00000010 /* sPAACE cache enable */
#define PAMU_PC_PPCC 0x00000001 /* pPAACE cache enable */
#define PAMU_PC_OCE 0x00001000 /* OMT cache enable */
#define PAMU_PFA1 0x0C14
#define PAMU_PFA2 0x0C18
#define PAMU_PC2_MLIODN(X) ((X) >> 16)
#define PAMU_PC3_MWCE(X) (((X) >> 21) & 0xf)
/* PAMU Interrupt control and Status Register */
#define PAMU_PICS 0x0C1C
#define PAMU_ACCESS_VIOLATION_STAT 0x8
#define PAMU_ACCESS_VIOLATION_ENABLE 0x4
/* PAMU Debug Registers */
#define PAMU_PD1 0x0F00
#define PAMU_PD2 0x0F04
#define PAMU_PD3 0x0F08
#define PAMU_PD4 0x0F0C
#define PAACE_AP_PERMS_DENIED 0x0
#define PAACE_AP_PERMS_QUERY 0x1
#define PAACE_AP_PERMS_UPDATE 0x2
#define PAACE_AP_PERMS_ALL 0x3
#define PAACE_DD_TO_HOST 0x0
#define PAACE_DD_TO_IO 0x1
#define PAACE_PT_PRIMARY 0x0
#define PAACE_PT_SECONDARY 0x1
#define PAACE_V_INVALID 0x0
#define PAACE_V_VALID 0x1
#define PAACE_MW_SUBWINDOWS 0x1
#define PAACE_WSE_4K 0xB
#define PAACE_WSE_8K 0xC
#define PAACE_WSE_16K 0xD
#define PAACE_WSE_32K 0xE
#define PAACE_WSE_64K 0xF
#define PAACE_WSE_128K 0x10
#define PAACE_WSE_256K 0x11
#define PAACE_WSE_512K 0x12
#define PAACE_WSE_1M 0x13
#define PAACE_WSE_2M 0x14
#define PAACE_WSE_4M 0x15
#define PAACE_WSE_8M 0x16
#define PAACE_WSE_16M 0x17
#define PAACE_WSE_32M 0x18
#define PAACE_WSE_64M 0x19
#define PAACE_WSE_128M 0x1A
#define PAACE_WSE_256M 0x1B
#define PAACE_WSE_512M 0x1C
#define PAACE_WSE_1G 0x1D
#define PAACE_WSE_2G 0x1E
#define PAACE_WSE_4G 0x1F
#define PAACE_DID_PCI_EXPRESS_1 0x00
#define PAACE_DID_PCI_EXPRESS_2 0x01
#define PAACE_DID_PCI_EXPRESS_3 0x02
#define PAACE_DID_PCI_EXPRESS_4 0x03
#define PAACE_DID_LOCAL_BUS 0x04
#define PAACE_DID_SRIO 0x0C
#define PAACE_DID_MEM_1 0x10
#define PAACE_DID_MEM_2 0x11
#define PAACE_DID_MEM_3 0x12
#define PAACE_DID_MEM_4 0x13
#define PAACE_DID_MEM_1_2 0x14
#define PAACE_DID_MEM_3_4 0x15
#define PAACE_DID_MEM_1_4 0x16
#define PAACE_DID_BM_SW_PORTAL 0x18
#define PAACE_DID_PAMU 0x1C
#define PAACE_DID_CAAM 0x21
#define PAACE_DID_QM_SW_PORTAL 0x3C
#define PAACE_DID_CORE0_INST 0x80
#define PAACE_DID_CORE0_DATA 0x81
#define PAACE_DID_CORE1_INST 0x82
#define PAACE_DID_CORE1_DATA 0x83
#define PAACE_DID_CORE2_INST 0x84
#define PAACE_DID_CORE2_DATA 0x85
#define PAACE_DID_CORE3_INST 0x86
#define PAACE_DID_CORE3_DATA 0x87
#define PAACE_DID_CORE4_INST 0x88
#define PAACE_DID_CORE4_DATA 0x89
#define PAACE_DID_CORE5_INST 0x8A
#define PAACE_DID_CORE5_DATA 0x8B
#define PAACE_DID_CORE6_INST 0x8C
#define PAACE_DID_CORE6_DATA 0x8D
#define PAACE_DID_CORE7_INST 0x8E
#define PAACE_DID_CORE7_DATA 0x8F
#define PAACE_DID_BROADCAST 0xFF
#define PAACE_ATM_NO_XLATE 0x00
#define PAACE_ATM_WINDOW_XLATE 0x01
#define PAACE_ATM_PAGE_XLATE 0x02
#define PAACE_ATM_WIN_PG_XLATE (PAACE_ATM_WINDOW_XLATE | PAACE_ATM_PAGE_XLATE)
#define PAACE_OTM_NO_XLATE 0x00
#define PAACE_OTM_IMMEDIATE 0x01
#define PAACE_OTM_INDEXED 0x02
#define PAACE_OTM_RESERVED 0x03
#define PAACE_M_COHERENCE_REQ 0x01
#define PAACE_PID_0 0x0
#define PAACE_PID_1 0x1
#define PAACE_PID_2 0x2
#define PAACE_PID_3 0x3
#define PAACE_PID_4 0x4
#define PAACE_PID_5 0x5
#define PAACE_PID_6 0x6
#define PAACE_PID_7 0x7
#define PAACE_TCEF_FORMAT0_8B 0x00
#define PAACE_TCEF_FORMAT1_RSVD 0x01
/*
* Hard coded value for the PAACT size to accommodate
* maximum LIODN value generated by u-boot.
*/
#define PAACE_NUMBER_ENTRIES 0x500
/* Hard coded value for the SPAACT size */
#define SPAACE_NUMBER_ENTRIES 0x800
#define OME_NUMBER_ENTRIES 16
/* PAACE Bit Field Defines */
#define PPAACE_AF_WBAL 0xfffff000
#define PPAACE_AF_WBAL_SHIFT 12
#define PPAACE_AF_WSE 0x00000fc0
#define PPAACE_AF_WSE_SHIFT 6
#define PPAACE_AF_MW 0x00000020
#define PPAACE_AF_MW_SHIFT 5
#define SPAACE_AF_LIODN 0xffff0000
#define SPAACE_AF_LIODN_SHIFT 16
#define PAACE_AF_AP 0x00000018
#define PAACE_AF_AP_SHIFT 3
#define PAACE_AF_DD 0x00000004
#define PAACE_AF_DD_SHIFT 2
#define PAACE_AF_PT 0x00000002
#define PAACE_AF_PT_SHIFT 1
#define PAACE_AF_V 0x00000001
#define PAACE_AF_V_SHIFT 0
#define PAACE_DA_HOST_CR 0x80
#define PAACE_DA_HOST_CR_SHIFT 7
#define PAACE_IA_CID 0x00FF0000
#define PAACE_IA_CID_SHIFT 16
#define PAACE_IA_WCE 0x000000F0
#define PAACE_IA_WCE_SHIFT 4
#define PAACE_IA_ATM 0x0000000C
#define PAACE_IA_ATM_SHIFT 2
#define PAACE_IA_OTM 0x00000003
#define PAACE_IA_OTM_SHIFT 0
#define PAACE_WIN_TWBAL 0xfffff000
#define PAACE_WIN_TWBAL_SHIFT 12
#define PAACE_WIN_SWSE 0x00000fc0
#define PAACE_WIN_SWSE_SHIFT 6
/* PAMU Data Structures */
/* primary / secondary paact structure */
struct paace {
/* PAACE Offset 0x00 */
u32 wbah; /* only valid for Primary PAACE */
u32 addr_bitfields; /* See P/S PAACE_AF_* */
/* PAACE Offset 0x08 */
/* Interpretation of first 32 bits dependent on DD above */
union {
struct {
/* Destination ID, see PAACE_DID_* defines */
u8 did;
/* Partition ID */
u8 pid;
/* Snoop ID */
u8 snpid;
/* coherency_required : 1 reserved : 7 */
u8 coherency_required; /* See PAACE_DA_* */
} to_host;
struct {
/* Destination ID, see PAACE_DID_* defines */
u8 did;
u8 reserved1;
u16 reserved2;
} to_io;
} domain_attr;
/* Implementation attributes + window count + address & operation translation modes */
u32 impl_attr; /* See PAACE_IA_* */
/* PAACE Offset 0x10 */
/* Translated window base address */
u32 twbah;
u32 win_bitfields; /* See PAACE_WIN_* */
/* PAACE Offset 0x18 */
/* first secondary paace entry */
u32 fspi; /* only valid for Primary PAACE */
union {
struct {
u8 ioea;
u8 moea;
u8 ioeb;
u8 moeb;
} immed_ot;
struct {
u16 reserved;
u16 omi;
} index_ot;
} op_encode;
/* PAACE Offsets 0x20-0x38 */
u32 reserved[8]; /* not currently implemented */
};
/* OME : Operation mapping entry
* MOE : Mapped Operation Encodings
* The operation mapping table is table containing operation mapping entries (OME).
* The index of a particular OME is programmed in the PAACE entry for translation
* in bound I/O operations corresponding to an LIODN. The OMT is used for translation
* specifically in case of the indexed translation mode. Each OME contains a 128
* byte mapped operation encoding (MOE), where each byte represents an MOE.
*/
#define NUM_MOE 128
struct ome {
u8 moe[NUM_MOE];
} __packed;
#define PAACT_SIZE (sizeof(struct paace) * PAACE_NUMBER_ENTRIES)
#define SPAACT_SIZE (sizeof(struct paace) * SPAACE_NUMBER_ENTRIES)
#define OMT_SIZE (sizeof(struct ome) * OME_NUMBER_ENTRIES)
#define PAMU_PAGE_SHIFT 12
#define PAMU_PAGE_SIZE 4096ULL
#define IOE_READ 0x00
#define IOE_READ_IDX 0x00
#define IOE_WRITE 0x81
#define IOE_WRITE_IDX 0x01
#define IOE_EREAD0 0x82 /* Enhanced read type 0 */
#define IOE_EREAD0_IDX 0x02 /* Enhanced read type 0 */
#define IOE_EWRITE0 0x83 /* Enhanced write type 0 */
#define IOE_EWRITE0_IDX 0x03 /* Enhanced write type 0 */
#define IOE_DIRECT0 0x84 /* Directive type 0 */
#define IOE_DIRECT0_IDX 0x04 /* Directive type 0 */
#define IOE_EREAD1 0x85 /* Enhanced read type 1 */
#define IOE_EREAD1_IDX 0x05 /* Enhanced read type 1 */
#define IOE_EWRITE1 0x86 /* Enhanced write type 1 */
#define IOE_EWRITE1_IDX 0x06 /* Enhanced write type 1 */
#define IOE_DIRECT1 0x87 /* Directive type 1 */
#define IOE_DIRECT1_IDX 0x07 /* Directive type 1 */
#define IOE_RAC 0x8c /* Read with Atomic clear */
#define IOE_RAC_IDX 0x0c /* Read with Atomic clear */
#define IOE_RAS 0x8d /* Read with Atomic set */
#define IOE_RAS_IDX 0x0d /* Read with Atomic set */
#define IOE_RAD 0x8e /* Read with Atomic decrement */
#define IOE_RAD_IDX 0x0e /* Read with Atomic decrement */
#define IOE_RAI 0x8f /* Read with Atomic increment */
#define IOE_RAI_IDX 0x0f /* Read with Atomic increment */
#define EOE_READ 0x00
#define EOE_WRITE 0x01
#define EOE_RAC 0x0c /* Read with Atomic clear */
#define EOE_RAS 0x0d /* Read with Atomic set */
#define EOE_RAD 0x0e /* Read with Atomic decrement */
#define EOE_RAI 0x0f /* Read with Atomic increment */
#define EOE_LDEC 0x10 /* Load external cache */
#define EOE_LDECL 0x11 /* Load external cache with stash lock */
#define EOE_LDECPE 0x12 /* Load external cache with preferred exclusive */
#define EOE_LDECPEL 0x13 /* Load external cache with preferred exclusive and lock */
#define EOE_LDECFE 0x14 /* Load external cache with forced exclusive */
#define EOE_LDECFEL 0x15 /* Load external cache with forced exclusive and lock */
#define EOE_RSA 0x16 /* Read with stash allocate */
#define EOE_RSAU 0x17 /* Read with stash allocate and unlock */
#define EOE_READI 0x18 /* Read with invalidate */
#define EOE_RWNITC 0x19 /* Read with no intention to cache */
#define EOE_WCI 0x1a /* Write cache inhibited */
#define EOE_WWSA 0x1b /* Write with stash allocate */
#define EOE_WWSAL 0x1c /* Write with stash allocate and lock */
#define EOE_WWSAO 0x1d /* Write with stash allocate only */
#define EOE_WWSAOL 0x1e /* Write with stash allocate only and lock */
#define EOE_VALID 0x80
/* Function prototypes */
int pamu_domain_init(void);
int pamu_enable_liodn(int liodn);
int pamu_disable_liodn(int liodn);
void pamu_free_subwins(int liodn);
int pamu_config_ppaace(int liodn, phys_addr_t win_addr, phys_addr_t win_size,
u32 omi, unsigned long rpn, u32 snoopid, uint32_t stashid,
u32 subwin_cnt, int prot);
int pamu_config_spaace(int liodn, u32 subwin_cnt, u32 subwin_addr,
phys_addr_t subwin_size, u32 omi, unsigned long rpn,
uint32_t snoopid, u32 stashid, int enable, int prot);
u32 get_stash_id(u32 stash_dest_hint, u32 vcpu);
void get_ome_index(u32 *omi_index, struct device *dev);
int pamu_update_paace_stash(int liodn, u32 subwin, u32 value);
int pamu_disable_spaace(int liodn, u32 subwin);
u32 pamu_get_max_subwin_cnt(void);
#endif /* __FSL_PAMU_H */