diff options
| author | Jason Wright <jason@cvs.openbsd.org> | 2005-05-27 18:37:08 +0000 |
|---|---|---|
| committer | Jason Wright <jason@cvs.openbsd.org> | 2005-05-27 18:37:08 +0000 |
| commit | 63feb1723e33b4cef1c778ea584f20820749e7bf (patch) | |
| tree | 222f51aa397e99d111813d64e28436f1f9fd9e7c /sys | |
| parent | ddaffbbc60905c29c6323e647453b5ae5e248a23 (diff) | |
use a fixed address for the base dva, also don't forget to setup the
pae table base address.
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/arch/amd64/pci/iommu.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/sys/arch/amd64/pci/iommu.c b/sys/arch/amd64/pci/iommu.c index a543963bdd5..69465e1b0b4 100644 --- a/sys/arch/amd64/pci/iommu.c +++ b/sys/arch/amd64/pci/iommu.c @@ -1,4 +1,4 @@ -/* $OpenBSD: iommu.c,v 1.5 2005/05/27 07:46:38 jason Exp $ */ +/* $OpenBSD: iommu.c,v 1.6 2005/05/27 18:37:07 jason Exp $ */ /* * Copyright (c) 2005 Jason L. Wright (jason@thought.net) @@ -273,6 +273,7 @@ amdgart_probe(struct pcibus_attach_args *pba) void *scrib = NULL; struct extent *ex = NULL; u_int32_t *pte; + paddr_t ptepa; if (amdgart_enable == 0) return; @@ -298,6 +299,7 @@ amdgart_probe(struct pcibus_attach_args *pba) goto err; } +#if 0 r = extent_alloc_subregion(iomem_ex, IOMMU_START, IOMMU_END, IOMMU_SIZE * 1024 * 1024, IOMMU_ALIGN * 1024 * 1024, 0, EX_NOBOUNDARY, EX_NOWAIT, &dvabase); @@ -305,6 +307,9 @@ amdgart_probe(struct pcibus_attach_args *pba) printf("\nGART: extent alloc failed: %d", r); goto err; } +#else + dvabase = IOMMU_START; +#endif mapsize = IOMMU_SIZE * 1024 * 1024; ptesize = mapsize / (PAGE_SIZE / sizeof(u_int32_t)); @@ -319,6 +324,7 @@ amdgart_probe(struct pcibus_attach_args *pba) if (amdgart_load_phys(&plist, (vaddr_t)pte)) goto err; + ptepa = VM_PAGE_TO_PHYS(TAILQ_FIRST(&plist)); ex = extent_create("iommu", dvabase, dvabase + mapsize - 1, M_DEVBUF, NULL, NULL, EX_NOWAIT | EX_NOCOALESCE); @@ -369,6 +375,9 @@ amdgart_probe(struct pcibus_attach_args *pba) pci_conf_write(pba->pba_pc, tag, GART_APBASE, dvabase >> 25); + pci_conf_write(pba->pba_pc, tag, GART_TBLBASE, + (ptepa >> 8) & GART_TBLBASE_MASK); + v = pci_conf_read(pba->pba_pc, tag, GART_APCTRL); v |= GART_APCTRL_ENABLE; v &= ~(GART_APCTRL_DISIO | GART_APCTRL_DISTBL); @@ -391,8 +400,7 @@ amdgart_probe(struct pcibus_attach_args *pba) amdgart_softcs[count].g_dmat = pba->pba_dmat; printf("\niommu%d(cpu%d): base 0x%lx length %dMB pte 0x%lx", - count, dev - 24, dvabase, IOMMU_SIZE, - VM_PAGE_TO_PHYS(TAILQ_FIRST(&plist))); + count, dev - 24, dvabase, IOMMU_SIZE, ptepa); count++; } } |