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Diffstat (limited to 'include/asm-x86/amd_iommu_types.h')
| -rw-r--r-- | include/asm-x86/amd_iommu_types.h | 404 |
1 files changed, 0 insertions, 404 deletions
diff --git a/include/asm-x86/amd_iommu_types.h b/include/asm-x86/amd_iommu_types.h deleted file mode 100644 index b3085869a17..00000000000 --- a/include/asm-x86/amd_iommu_types.h +++ /dev/null @@ -1,404 +0,0 @@ -/* - * Copyright (C) 2007-2008 Advanced Micro Devices, Inc. - * Author: Joerg Roedel <joerg.roedel@amd.com> - * Leo Duran <leo.duran@amd.com> - * - * 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, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#ifndef ASM_X86__AMD_IOMMU_TYPES_H -#define ASM_X86__AMD_IOMMU_TYPES_H - -#include <linux/types.h> -#include <linux/list.h> -#include <linux/spinlock.h> - -/* - * some size calculation constants - */ -#define DEV_TABLE_ENTRY_SIZE 32 -#define ALIAS_TABLE_ENTRY_SIZE 2 -#define RLOOKUP_TABLE_ENTRY_SIZE (sizeof(void *)) - -/* Length of the MMIO region for the AMD IOMMU */ -#define MMIO_REGION_LENGTH 0x4000 - -/* Capability offsets used by the driver */ -#define MMIO_CAP_HDR_OFFSET 0x00 -#define MMIO_RANGE_OFFSET 0x0c -#define MMIO_MISC_OFFSET 0x10 - -/* Masks, shifts and macros to parse the device range capability */ -#define MMIO_RANGE_LD_MASK 0xff000000 -#define MMIO_RANGE_FD_MASK 0x00ff0000 -#define MMIO_RANGE_BUS_MASK 0x0000ff00 -#define MMIO_RANGE_LD_SHIFT 24 -#define MMIO_RANGE_FD_SHIFT 16 -#define MMIO_RANGE_BUS_SHIFT 8 -#define MMIO_GET_LD(x) (((x) & MMIO_RANGE_LD_MASK) >> MMIO_RANGE_LD_SHIFT) -#define MMIO_GET_FD(x) (((x) & MMIO_RANGE_FD_MASK) >> MMIO_RANGE_FD_SHIFT) -#define MMIO_GET_BUS(x) (((x) & MMIO_RANGE_BUS_MASK) >> MMIO_RANGE_BUS_SHIFT) -#define MMIO_MSI_NUM(x) ((x) & 0x1f) - -/* Flag masks for the AMD IOMMU exclusion range */ -#define MMIO_EXCL_ENABLE_MASK 0x01ULL -#define MMIO_EXCL_ALLOW_MASK 0x02ULL - -/* Used offsets into the MMIO space */ -#define MMIO_DEV_TABLE_OFFSET 0x0000 -#define MMIO_CMD_BUF_OFFSET 0x0008 -#define MMIO_EVT_BUF_OFFSET 0x0010 -#define MMIO_CONTROL_OFFSET 0x0018 -#define MMIO_EXCL_BASE_OFFSET 0x0020 -#define MMIO_EXCL_LIMIT_OFFSET 0x0028 -#define MMIO_CMD_HEAD_OFFSET 0x2000 -#define MMIO_CMD_TAIL_OFFSET 0x2008 -#define MMIO_EVT_HEAD_OFFSET 0x2010 -#define MMIO_EVT_TAIL_OFFSET 0x2018 -#define MMIO_STATUS_OFFSET 0x2020 - -/* MMIO status bits */ -#define MMIO_STATUS_COM_WAIT_INT_MASK 0x04 - -/* event logging constants */ -#define EVENT_ENTRY_SIZE 0x10 -#define EVENT_TYPE_SHIFT 28 -#define EVENT_TYPE_MASK 0xf -#define EVENT_TYPE_ILL_DEV 0x1 -#define EVENT_TYPE_IO_FAULT 0x2 -#define EVENT_TYPE_DEV_TAB_ERR 0x3 -#define EVENT_TYPE_PAGE_TAB_ERR 0x4 -#define EVENT_TYPE_ILL_CMD 0x5 -#define EVENT_TYPE_CMD_HARD_ERR 0x6 -#define EVENT_TYPE_IOTLB_INV_TO 0x7 -#define EVENT_TYPE_INV_DEV_REQ 0x8 -#define EVENT_DEVID_MASK 0xffff -#define EVENT_DEVID_SHIFT 0 -#define EVENT_DOMID_MASK 0xffff -#define EVENT_DOMID_SHIFT 0 -#define EVENT_FLAGS_MASK 0xfff -#define EVENT_FLAGS_SHIFT 0x10 - -/* feature control bits */ -#define CONTROL_IOMMU_EN 0x00ULL -#define CONTROL_HT_TUN_EN 0x01ULL -#define CONTROL_EVT_LOG_EN 0x02ULL -#define CONTROL_EVT_INT_EN 0x03ULL -#define CONTROL_COMWAIT_EN 0x04ULL -#define CONTROL_PASSPW_EN 0x08ULL -#define CONTROL_RESPASSPW_EN 0x09ULL -#define CONTROL_COHERENT_EN 0x0aULL -#define CONTROL_ISOC_EN 0x0bULL -#define CONTROL_CMDBUF_EN 0x0cULL -#define CONTROL_PPFLOG_EN 0x0dULL -#define CONTROL_PPFINT_EN 0x0eULL - -/* command specific defines */ -#define CMD_COMPL_WAIT 0x01 -#define CMD_INV_DEV_ENTRY 0x02 -#define CMD_INV_IOMMU_PAGES 0x03 - -#define CMD_COMPL_WAIT_STORE_MASK 0x01 -#define CMD_COMPL_WAIT_INT_MASK 0x02 -#define CMD_INV_IOMMU_PAGES_SIZE_MASK 0x01 -#define CMD_INV_IOMMU_PAGES_PDE_MASK 0x02 - -#define CMD_INV_IOMMU_ALL_PAGES_ADDRESS 0x7fffffffffffffffULL - -/* macros and definitions for device table entries */ -#define DEV_ENTRY_VALID 0x00 -#define DEV_ENTRY_TRANSLATION 0x01 -#define DEV_ENTRY_IR 0x3d -#define DEV_ENTRY_IW 0x3e -#define DEV_ENTRY_NO_PAGE_FAULT 0x62 -#define DEV_ENTRY_EX 0x67 -#define DEV_ENTRY_SYSMGT1 0x68 -#define DEV_ENTRY_SYSMGT2 0x69 -#define DEV_ENTRY_INIT_PASS 0xb8 -#define DEV_ENTRY_EINT_PASS 0xb9 -#define DEV_ENTRY_NMI_PASS 0xba -#define DEV_ENTRY_LINT0_PASS 0xbe -#define DEV_ENTRY_LINT1_PASS 0xbf -#define DEV_ENTRY_MODE_MASK 0x07 -#define DEV_ENTRY_MODE_SHIFT 0x09 - -/* constants to configure the command buffer */ -#define CMD_BUFFER_SIZE 8192 -#define CMD_BUFFER_ENTRIES 512 -#define MMIO_CMD_SIZE_SHIFT 56 -#define MMIO_CMD_SIZE_512 (0x9ULL << MMIO_CMD_SIZE_SHIFT) - -/* constants for event buffer handling */ -#define EVT_BUFFER_SIZE 8192 /* 512 entries */ -#define EVT_LEN_MASK (0x9ULL << 56) - -#define PAGE_MODE_1_LEVEL 0x01 -#define PAGE_MODE_2_LEVEL 0x02 -#define PAGE_MODE_3_LEVEL 0x03 - -#define IOMMU_PDE_NL_0 0x000ULL -#define IOMMU_PDE_NL_1 0x200ULL -#define IOMMU_PDE_NL_2 0x400ULL -#define IOMMU_PDE_NL_3 0x600ULL - -#define IOMMU_PTE_L2_INDEX(address) (((address) >> 30) & 0x1ffULL) -#define IOMMU_PTE_L1_INDEX(address) (((address) >> 21) & 0x1ffULL) -#define IOMMU_PTE_L0_INDEX(address) (((address) >> 12) & 0x1ffULL) - -#define IOMMU_MAP_SIZE_L1 (1ULL << 21) -#define IOMMU_MAP_SIZE_L2 (1ULL << 30) -#define IOMMU_MAP_SIZE_L3 (1ULL << 39) - -#define IOMMU_PTE_P (1ULL << 0) -#define IOMMU_PTE_TV (1ULL << 1) -#define IOMMU_PTE_U (1ULL << 59) -#define IOMMU_PTE_FC (1ULL << 60) -#define IOMMU_PTE_IR (1ULL << 61) -#define IOMMU_PTE_IW (1ULL << 62) - -#define IOMMU_L1_PDE(address) \ - ((address) | IOMMU_PDE_NL_1 | IOMMU_PTE_P | IOMMU_PTE_IR | IOMMU_PTE_IW) -#define IOMMU_L2_PDE(address) \ - ((address) | IOMMU_PDE_NL_2 | IOMMU_PTE_P | IOMMU_PTE_IR | IOMMU_PTE_IW) - -#define IOMMU_PAGE_MASK (((1ULL << 52) - 1) & ~0xfffULL) -#define IOMMU_PTE_PRESENT(pte) ((pte) & IOMMU_PTE_P) -#define IOMMU_PTE_PAGE(pte) (phys_to_virt((pte) & IOMMU_PAGE_MASK)) -#define IOMMU_PTE_MODE(pte) (((pte) >> 9) & 0x07) - -#define IOMMU_PROT_MASK 0x03 -#define IOMMU_PROT_IR 0x01 -#define IOMMU_PROT_IW 0x02 - -/* IOMMU capabilities */ -#define IOMMU_CAP_IOTLB 24 -#define IOMMU_CAP_NPCACHE 26 - -#define MAX_DOMAIN_ID 65536 - -/* FIXME: move this macro to <linux/pci.h> */ -#define PCI_BUS(x) (((x) >> 8) & 0xff) - -/* - * This structure contains generic data for IOMMU protection domains - * independent of their use. - */ -struct protection_domain { - spinlock_t lock; /* mostly used to lock the page table*/ - u16 id; /* the domain id written to the device table */ - int mode; /* paging mode (0-6 levels) */ - u64 *pt_root; /* page table root pointer */ - void *priv; /* private data */ -}; - -/* - * Data container for a dma_ops specific protection domain - */ -struct dma_ops_domain { - struct list_head list; - - /* generic protection domain information */ - struct protection_domain domain; - - /* size of the aperture for the mappings */ - unsigned long aperture_size; - - /* address we start to search for free addresses */ - unsigned long next_bit; - - /* address allocation bitmap */ - unsigned long *bitmap; - - /* - * Array of PTE pages for the aperture. In this array we save all the - * leaf pages of the domain page table used for the aperture. This way - * we don't need to walk the page table to find a specific PTE. We can - * just calculate its address in constant time. - */ - u64 **pte_pages; - - /* This will be set to true when TLB needs to be flushed */ - bool need_flush; - - /* - * if this is a preallocated domain, keep the device for which it was - * preallocated in this variable - */ - u16 target_dev; -}; - -/* - * Structure where we save information about one hardware AMD IOMMU in the - * system. - */ -struct amd_iommu { - struct list_head list; - - /* locks the accesses to the hardware */ - spinlock_t lock; - - /* Pointer to PCI device of this IOMMU */ - struct pci_dev *dev; - - /* - * Capability pointer. There could be more than one IOMMU per PCI - * device function if there are more than one AMD IOMMU capability - * pointers. - */ - u16 cap_ptr; - - /* physical address of MMIO space */ - u64 mmio_phys; - /* virtual address of MMIO space */ - u8 *mmio_base; - - /* capabilities of that IOMMU read from ACPI */ - u32 cap; - - /* pci domain of this IOMMU */ - u16 pci_seg; - - /* first device this IOMMU handles. read from PCI */ - u16 first_device; - /* last device this IOMMU handles. read from PCI */ - u16 last_device; - - /* start of exclusion range of that IOMMU */ - u64 exclusion_start; - /* length of exclusion range of that IOMMU */ - u64 exclusion_length; - - /* command buffer virtual address */ - u8 *cmd_buf; - /* size of command buffer */ - u32 cmd_buf_size; - - /* event buffer virtual address */ - u8 *evt_buf; - /* size of event buffer */ - u32 evt_buf_size; - /* MSI number for event interrupt */ - u16 evt_msi_num; - - /* if one, we need to send a completion wait command */ - int need_sync; - - /* true if interrupts for this IOMMU are already enabled */ - bool int_enabled; - - /* default dma_ops domain for that IOMMU */ - struct dma_ops_domain *default_dom; -}; - -/* - * List with all IOMMUs in the system. This list is not locked because it is - * only written and read at driver initialization or suspend time - */ -extern struct list_head amd_iommu_list; - -/* - * Structure defining one entry in the device table - */ -struct dev_table_entry { - u32 data[8]; -}; - -/* - * One entry for unity mappings parsed out of the ACPI table. - */ -struct unity_map_entry { - struct list_head list; - - /* starting device id this entry is used for (including) */ - u16 devid_start; - /* end device id this entry is used for (including) */ - u16 devid_end; - - /* start address to unity map (including) */ - u64 address_start; - /* end address to unity map (including) */ - u64 address_end; - - /* required protection */ - int prot; -}; - -/* - * List of all unity mappings. It is not locked because as runtime it is only - * read. It is created at ACPI table parsing time. - */ -extern struct list_head amd_iommu_unity_map; - -/* - * Data structures for device handling - */ - -/* - * Device table used by hardware. Read and write accesses by software are - * locked with the amd_iommu_pd_table lock. - */ -extern struct dev_table_entry *amd_iommu_dev_table; - -/* - * Alias table to find requestor ids to device ids. Not locked because only - * read on runtime. - */ -extern u16 *amd_iommu_alias_table; - -/* - * Reverse lookup table to find the IOMMU which translates a specific device. - */ -extern struct amd_iommu **amd_iommu_rlookup_table; - -/* size of the dma_ops aperture as power of 2 */ -extern unsigned amd_iommu_aperture_order; - -/* largest PCI device id we expect translation requests for */ -extern u16 amd_iommu_last_bdf; - -/* data structures for protection domain handling */ -extern struct protection_domain **amd_iommu_pd_table; - -/* allocation bitmap for domain ids */ -extern unsigned long *amd_iommu_pd_alloc_bitmap; - -/* will be 1 if device isolation is enabled */ -extern int amd_iommu_isolate; - -/* - * If true, the addresses will be flushed on unmap time, not when - * they are reused - */ -extern bool amd_iommu_unmap_flush; - -/* takes a PCI device id and prints it out in a readable form */ -static inline void print_devid(u16 devid, int nl) -{ - int bus = devid >> 8; - int dev = devid >> 3 & 0x1f; - int fn = devid & 0x07; - - printk("%02x:%02x.%x", bus, dev, fn); - if (nl) - printk("\n"); -} - -/* takes bus and device/function and returns the device id - * FIXME: should that be in generic PCI code? */ -static inline u16 calc_devid(u8 bus, u8 devfn) -{ - return (((u16)bus) << 8) | devfn; -} - -#endif /* ASM_X86__AMD_IOMMU_TYPES_H */ |