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Initialize s/g DMA registers in the same order as the CIA chipset's: 

(1) window base
	(2) window mask
	(3) translation base
This commit is contained in:
thorpej 1998-01-17 22:46:55 +00:00
parent 3366b987d0
commit 8df306036a
2 changed files with 18 additions and 13 deletions
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16
sys/arch/alpha/pci/apecs_dma.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: apecs_dma.c,v 1.5 1998/01/17 21:53:56 thorpej Exp $ */
/* $NetBSD: apecs_dma.c,v 1.6 1998/01/17 22:46:55 thorpej Exp $ */
/*-
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
@ -39,7 +39,7 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: apecs_dma.c,v 1.5 1998/01/17 21:53:56 thorpej Exp $");
__KERNEL_RCSID(0, "$NetBSD: apecs_dma.c,v 1.6 1998/01/17 22:46:55 thorpej Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -174,15 +174,17 @@ apecs_dma_init(acp)
* Set up window 1 as an 8MB SGMAP-mapped window
* starting at 8MB.
*/
REGVAL(EPIC_PCI_BASE_1) = APECS_SGMAP_MAPPED_BASE |
EPIC_PCI_BASE_SGEN | EPIC_PCI_BASE_WENB;
alpha_mb();
REGVAL(EPIC_PCI_MASK_1) = EPIC_PCI_MASK_8M;
alpha_mb();
tbase = acp->ac_sgmap.aps_ptpa >> EPIC_TBASE_SHIFT;
if ((tbase & EPIC_TBASE_T_BASE) != tbase)
panic("apecs_dma_init: bad page table address");
REGVAL(EPIC_TBASE_1) = tbase;
REGVAL(EPIC_PCI_MASK_1) = EPIC_PCI_MASK_8M;
alpha_mb();
REGVAL(EPIC_PCI_BASE_1) = APECS_SGMAP_MAPPED_BASE |
EPIC_PCI_BASE_SGEN | EPIC_PCI_BASE_WENB;
alpha_mb();
APECS_TLB_INVALIDATE();

15
sys/arch/alpha/pci/lca_dma.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: lca_dma.c,v 1.5 1998/01/17 21:53:58 thorpej Exp $ */
/* $NetBSD: lca_dma.c,v 1.6 1998/01/17 22:46:56 thorpej Exp $ */
/*-
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
@ -39,7 +39,7 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: lca_dma.c,v 1.5 1998/01/17 21:53:58 thorpej Exp $");
__KERNEL_RCSID(0, "$NetBSD: lca_dma.c,v 1.6 1998/01/17 22:46:56 thorpej Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -173,20 +173,23 @@ lca_dma_init(lcp)
* Set up window 0 as an 8MB SGMAP-mapped window
* starting at 8MB.
*/
REGVAL64(LCA_IOC_W_BASE0) = LCA_SGMAP_MAPPED_BASE |
IOC_W_BASE_SG | IOC_W_BASE_WEN;
alpha_mb();
REGVAL64(LCA_IOC_W_MASK0) = IOC_W_MASK_8M;
alpha_mb();
if ((lcp->lc_sgmap.aps_ptpa & IOC_W_T_BASE) !=
lcp->lc_sgmap.aps_ptpa)
panic("lca_dma_init: bad page table address");
REGVAL64(LCA_IOC_W_T_BASE0) = lcp->lc_sgmap.aps_ptpa;
REGVAL64(LCA_IOC_W_MASK0) = IOC_W_MASK_8M;
alpha_mb();
/* Enble the scatter/gather TLB. */
REGVAL64(LCA_IOC_TB_ENA) = IOC_TB_ENA_TEN;
alpha_mb();
REGVAL64(LCA_IOC_W_BASE0) = LCA_SGMAP_MAPPED_BASE |
IOC_W_BASE_SG | IOC_W_BASE_WEN;
alpha_mb();
LCA_TLB_INVALIDATE();
}