Commit 07a80a6b authored by Baoquan He's avatar Baoquan He Committed by Joerg Roedel

iommu/amd: Define bit fields for DTE particularly

In AMD-Vi spec several bits of IO PTE fields and DTE fields are similar
so that both of them can share the same MACRO definition. However
defining them respectively can make code more read-able. Do it now.
Signed-off-by: default avatarBaoquan He <bhe@redhat.com>
Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent 9494ea90
...@@ -1537,9 +1537,9 @@ static int iommu_map_page(struct protection_domain *dom, ...@@ -1537,9 +1537,9 @@ static int iommu_map_page(struct protection_domain *dom,
if (count > 1) { if (count > 1) {
__pte = PAGE_SIZE_PTE(phys_addr, page_size); __pte = PAGE_SIZE_PTE(phys_addr, page_size);
__pte |= PM_LEVEL_ENC(7) | IOMMU_PTE_P | IOMMU_PTE_FC; __pte |= PM_LEVEL_ENC(7) | IOMMU_PTE_PR | IOMMU_PTE_FC;
} else } else
__pte = phys_addr | IOMMU_PTE_P | IOMMU_PTE_FC; __pte = phys_addr | IOMMU_PTE_PR | IOMMU_PTE_FC;
if (prot & IOMMU_PROT_IR) if (prot & IOMMU_PROT_IR)
__pte |= IOMMU_PTE_IR; __pte |= IOMMU_PTE_IR;
...@@ -2053,7 +2053,7 @@ static void set_dte_entry(u16 devid, struct protection_domain *domain, bool ats) ...@@ -2053,7 +2053,7 @@ static void set_dte_entry(u16 devid, struct protection_domain *domain, bool ats)
pte_root |= (domain->mode & DEV_ENTRY_MODE_MASK) pte_root |= (domain->mode & DEV_ENTRY_MODE_MASK)
<< DEV_ENTRY_MODE_SHIFT; << DEV_ENTRY_MODE_SHIFT;
pte_root |= IOMMU_PTE_IR | IOMMU_PTE_IW | IOMMU_PTE_P | IOMMU_PTE_TV; pte_root |= DTE_FLAG_IR | DTE_FLAG_IW | DTE_FLAG_V | DTE_FLAG_TV;
flags = amd_iommu_dev_table[devid].data[1]; flags = amd_iommu_dev_table[devid].data[1];
...@@ -2096,7 +2096,7 @@ static void set_dte_entry(u16 devid, struct protection_domain *domain, bool ats) ...@@ -2096,7 +2096,7 @@ static void set_dte_entry(u16 devid, struct protection_domain *domain, bool ats)
static void clear_dte_entry(u16 devid) static void clear_dte_entry(u16 devid)
{ {
/* remove entry from the device table seen by the hardware */ /* remove entry from the device table seen by the hardware */
amd_iommu_dev_table[devid].data[0] = IOMMU_PTE_P | IOMMU_PTE_TV; amd_iommu_dev_table[devid].data[0] = DTE_FLAG_V | DTE_FLAG_TV;
amd_iommu_dev_table[devid].data[1] &= DTE_FLAG_MASK; amd_iommu_dev_table[devid].data[1] &= DTE_FLAG_MASK;
amd_iommu_apply_erratum_63(devid); amd_iommu_apply_erratum_63(devid);
......
...@@ -265,7 +265,7 @@ ...@@ -265,7 +265,7 @@
#define PM_LEVEL_INDEX(x, a) (((a) >> PM_LEVEL_SHIFT((x))) & 0x1ffULL) #define PM_LEVEL_INDEX(x, a) (((a) >> PM_LEVEL_SHIFT((x))) & 0x1ffULL)
#define PM_LEVEL_ENC(x) (((x) << 9) & 0xe00ULL) #define PM_LEVEL_ENC(x) (((x) << 9) & 0xe00ULL)
#define PM_LEVEL_PDE(x, a) ((a) | PM_LEVEL_ENC((x)) | \ #define PM_LEVEL_PDE(x, a) ((a) | PM_LEVEL_ENC((x)) | \
IOMMU_PTE_P | IOMMU_PTE_IR | IOMMU_PTE_IW) IOMMU_PTE_PR | IOMMU_PTE_IR | IOMMU_PTE_IW)
#define PM_PTE_LEVEL(pte) (((pte) >> 9) & 0x7ULL) #define PM_PTE_LEVEL(pte) (((pte) >> 9) & 0x7ULL)
#define PM_MAP_4k 0 #define PM_MAP_4k 0
...@@ -314,13 +314,23 @@ ...@@ -314,13 +314,23 @@
#define PTE_LEVEL_PAGE_SIZE(level) \ #define PTE_LEVEL_PAGE_SIZE(level) \
(1ULL << (12 + (9 * (level)))) (1ULL << (12 + (9 * (level))))
#define IOMMU_PTE_P (1ULL << 0) /*
#define IOMMU_PTE_TV (1ULL << 1) * Bit value definition for I/O PTE fields
*/
#define IOMMU_PTE_PR (1ULL << 0)
#define IOMMU_PTE_U (1ULL << 59) #define IOMMU_PTE_U (1ULL << 59)
#define IOMMU_PTE_FC (1ULL << 60) #define IOMMU_PTE_FC (1ULL << 60)
#define IOMMU_PTE_IR (1ULL << 61) #define IOMMU_PTE_IR (1ULL << 61)
#define IOMMU_PTE_IW (1ULL << 62) #define IOMMU_PTE_IW (1ULL << 62)
/*
* Bit value definition for DTE fields
*/
#define DTE_FLAG_V (1ULL << 0)
#define DTE_FLAG_TV (1ULL << 1)
#define DTE_FLAG_IR (1ULL << 61)
#define DTE_FLAG_IW (1ULL << 62)
#define DTE_FLAG_IOTLB (1ULL << 32) #define DTE_FLAG_IOTLB (1ULL << 32)
#define DTE_FLAG_GV (1ULL << 55) #define DTE_FLAG_GV (1ULL << 55)
#define DTE_FLAG_MASK (0x3ffULL << 32) #define DTE_FLAG_MASK (0x3ffULL << 32)
...@@ -342,7 +352,7 @@ ...@@ -342,7 +352,7 @@
#define GCR3_VALID 0x01ULL #define GCR3_VALID 0x01ULL
#define IOMMU_PAGE_MASK (((1ULL << 52) - 1) & ~0xfffULL) #define IOMMU_PAGE_MASK (((1ULL << 52) - 1) & ~0xfffULL)
#define IOMMU_PTE_PRESENT(pte) ((pte) & IOMMU_PTE_P) #define IOMMU_PTE_PRESENT(pte) ((pte) & IOMMU_PTE_PR)
#define IOMMU_PTE_PAGE(pte) (phys_to_virt((pte) & IOMMU_PAGE_MASK)) #define IOMMU_PTE_PAGE(pte) (phys_to_virt((pte) & IOMMU_PAGE_MASK))
#define IOMMU_PTE_MODE(pte) (((pte) >> 9) & 0x07) #define IOMMU_PTE_MODE(pte) (((pte) >> 9) & 0x07)
......
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