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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <sys/debug.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/time.h>
#include <sys/buf.h>
#include <sys/errno.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/signal.h>
#include <vm/page.h>
#include <vm/as.h>
#include <vm/hat.h>
#include <vm/seg.h>
#include <vm/seg_dev.h>
#include <vm/hat_i86.h>
#include <sys/ddi.h>
#include <sys/devops.h>
#include <sys/sunddi.h>
#include <sys/ddi_impldefs.h>
#include <sys/fs/snode.h>
#include <sys/pci.h>
#include <sys/vmsystm.h>
#include <sys/int_fmtio.h>
#include <sys/gfx_private.h>
#ifdef __xpv
#include <sys/hypervisor.h>
#endif
/*
* Create a dummy ddi_umem_cookie given to gfxp_devmap_umem_setup().
*/
ddi_umem_cookie_t
gfxp_umem_cookie_init(caddr_t kva, size_t size)
{
struct ddi_umem_cookie *umem_cookie;
umem_cookie = kmem_zalloc(sizeof (struct ddi_umem_cookie), KM_SLEEP);
if (umem_cookie == NULL)
return (NULL);
umem_cookie->cvaddr = kva;
umem_cookie->type = KMEM_NON_PAGEABLE;
umem_cookie->size = size;
return ((ddi_umem_cookie_t)umem_cookie);
}
void
gfxp_umem_cookie_destroy(ddi_umem_cookie_t cookie)
{
kmem_free(cookie, sizeof (struct ddi_umem_cookie));
}
/*
* called by driver devmap routine to pass kernel virtual address mapping
* info to the framework.
*/
/*ARGSUSED*/
int
gfxp_devmap_umem_setup(devmap_cookie_t dhc, dev_info_t *dip,
struct devmap_callback_ctl *callbackops, ddi_umem_cookie_t cookie,
offset_t off, size_t len, uint_t maxprot, uint_t flags,
ddi_device_acc_attr_t *accattrp)
{
uint_t l_flags = flags & ~IOMEM_DATA_MASK; /* clear cache attrs */
int e;
/*
* Set an appropriate attribute from devacc_attr_dataorder
* to keep compatibility. The cache attributes are igonred
* if specified.
*/
if (accattrp != NULL) {
if (accattrp->devacc_attr_dataorder == DDI_STRICTORDER_ACC) {
l_flags |= IOMEM_DATA_UNCACHED;
} else if (accattrp->devacc_attr_dataorder ==
DDI_MERGING_OK_ACC) {
l_flags |= IOMEM_DATA_UC_WR_COMBINE;
} else {
l_flags |= IOMEM_DATA_CACHED;
}
}
e = devmap_umem_setup(dhc, dip, callbackops, cookie, off, len, maxprot,
l_flags, accattrp);
return (e);
}
/*
* Replacement for devmap_devmem_setup() which will map a machine address
* instead of a register set/offset.
*/
void
gfxp_map_devmem(devmap_cookie_t dhc, gfx_maddr_t maddr, size_t length,
ddi_device_acc_attr_t *attrp)
{
devmap_handle_t *dhp = (devmap_handle_t *)dhc;
pfn_t pfn;
#ifdef __xpv
ASSERT(DOMAIN_IS_INITDOMAIN(xen_info));
pfn = xen_assign_pfn(mmu_btop(maddr));
#else
pfn = mmu_btop(maddr);
#endif
dhp->dh_pfn = pfn;
dhp->dh_len = mmu_ptob(mmu_btopr(length));
dhp->dh_roff = 0;
#ifndef DEVMAP_DEVMEM_COOKIE
#define DEVMAP_DEVMEM_COOKIE ((ddi_umem_cookie_t)0x1) /* XXPV */
#endif /* DEVMAP_DEVMEM_COOKIE */
dhp->dh_cookie = DEVMAP_DEVMEM_COOKIE;
/*LINTED: E_EXPR_NULL_EFFECT*/
dhp->dh_flags |= DEVMAP_DEFAULTS;
dhp->dh_maxprot = PROT_ALL & dhp->dh_orig_maxprot;
/* no callbacks needed */
bzero(&dhp->dh_callbackops, sizeof (struct devmap_callback_ctl));
switch (attrp->devacc_attr_dataorder) {
case DDI_UNORDERED_OK_ACC:
dhp->dh_hat_attr = HAT_UNORDERED_OK;
break;
case DDI_MERGING_OK_ACC:
dhp->dh_hat_attr = HAT_MERGING_OK;
break;
case DDI_LOADCACHING_OK_ACC:
dhp->dh_hat_attr = HAT_LOADCACHING_OK;
break;
case DDI_STORECACHING_OK_ACC:
dhp->dh_hat_attr = HAT_STORECACHING_OK;
break;
case DDI_STRICTORDER_ACC:
default:
dhp->dh_hat_attr = HAT_STRICTORDER;
}
/* don't use large pages */
dhp->dh_mmulevel = 0;
dhp->dh_flags &= ~DEVMAP_FLAG_LARGE;
dhp->dh_flags |= DEVMAP_SETUP_DONE;
}
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