| /* |
| * 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 */ |
