x86, AMD IOMMU: add header file for driver data structures and defines
This patch adds a header file local to the AMD IOMMU driver with constants and data structures needed in the code. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: Sebastian.Biemueller@amd.com Cc: robert.richter@amd.com Cc: joro@8bytes.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Joerg Roedel
Ingo Molnar
Родитель
2b188723ee
Коммит
8d283c35a2
|
|
@ -0,0 +1,242 @@
|
|||
/*
|
||||
* 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 __AMD_IOMMU_TYPES_H__
|
||||
#define __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 256
|
||||
#define ALIAS_TABLE_ENTRY_SIZE 2
|
||||
#define RLOOKUP_TABLE_ENTRY_SIZE (sizeof(void *))
|
||||
|
||||
/* helper macros */
|
||||
#define LOW_U32(x) ((x) & ((1ULL << 32)-1))
|
||||
#define HIGH_U32(x) (LOW_U32((x) >> 32))
|
||||
|
||||
/* 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
|
||||
|
||||
/* 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)
|
||||
|
||||
/* 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
|
||||
|
||||
/* 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_INV_IOMMU_PAGES_SIZE_MASK 0x01
|
||||
#define CMD_INV_IOMMU_PAGES_PDE_MASK 0x02
|
||||
|
||||
/* 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_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
|
||||
|
||||
/* 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)
|
||||
|
||||
#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_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
|
||||
|
||||
struct protection_domain {
|
||||
spinlock_t lock;
|
||||
u16 id;
|
||||
int mode;
|
||||
u64 *pt_root;
|
||||
void *priv;
|
||||
};
|
||||
|
||||
struct dma_ops_domain {
|
||||
struct list_head list;
|
||||
struct protection_domain domain;
|
||||
unsigned long aperture_size;
|
||||
unsigned long next_bit;
|
||||
unsigned long *bitmap;
|
||||
u64 **pte_pages;
|
||||
};
|
||||
|
||||
struct amd_iommu {
|
||||
struct list_head list;
|
||||
spinlock_t lock;
|
||||
|
||||
u16 devid;
|
||||
u16 cap_ptr;
|
||||
|
||||
u64 mmio_phys;
|
||||
u8 *mmio_base;
|
||||
u32 cap;
|
||||
u16 first_device;
|
||||
u16 last_device;
|
||||
u64 exclusion_start;
|
||||
u64 exclusion_length;
|
||||
|
||||
u8 *cmd_buf;
|
||||
u32 cmd_buf_size;
|
||||
|
||||
int need_sync;
|
||||
|
||||
struct dma_ops_domain *default_dom;
|
||||
};
|
||||
|
||||
extern struct list_head amd_iommu_list;
|
||||
|
||||
struct dev_table_entry {
|
||||
u32 data[8];
|
||||
};
|
||||
|
||||
struct unity_map_entry {
|
||||
struct list_head list;
|
||||
u16 devid_start;
|
||||
u16 devid_end;
|
||||
u64 address_start;
|
||||
u64 address_end;
|
||||
int prot;
|
||||
};
|
||||
|
||||
extern struct list_head amd_iommu_unity_map;
|
||||
|
||||
/* data structures for device handling */
|
||||
extern struct dev_table_entry *amd_iommu_dev_table;
|
||||
extern u16 *amd_iommu_alias_table;
|
||||
extern struct amd_iommu **amd_iommu_rlookup_table;
|
||||
|
||||
extern unsigned amd_iommu_aperture_order;
|
||||
|
||||
extern u16 amd_iommu_last_bdf;
|
||||
|
||||
/* data structures for protection domain handling */
|
||||
extern struct protection_domain **amd_iommu_pd_table;
|
||||
extern unsigned long *amd_iommu_pd_alloc_bitmap;
|
||||
|
||||
extern int amd_iommu_isolate;
|
||||
|
||||
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");
|
||||
}
|
||||
|
||||
#endif
|
||||
Загрузка…
Ссылка в новой задаче