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Quick hack-o-rama to allow the Xorg Radeon driver to start up. It

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tries to mmap memory outside of the available BARs, so allow the
range checks to be relaxed with a sysctl.
This commit is contained in:
Peter Grehan 2005-05-21 00:22:57 +00:00
parent c592ba5f3f
commit bd8fa19da3
1 changed files with 13 additions and 0 deletions
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13
sys/powerpc/ofw/ofw_syscons.c
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@ -57,6 +57,11 @@ __FBSDID("$FreeBSD$");
#include <powerpc/ofw/ofw_syscons.h>
#include <machine/nexusvar.h>
static int ofwfb_ignore_mmap_checks;
SYSCTL_NODE(_hw, OID_AUTO, ofwfb, CTLFLAG_RD, 0, "ofwfb");
SYSCTL_INT(_hw_ofwfb, OID_AUTO, relax_mmap, CTLFLAG_RW,
&ofwfb_ignore_mmap_checks, 0, "relax mmap bounds checking");
extern u_char dflt_font_16[];
extern u_char dflt_font_14[];
extern u_char dflt_font_8[];
@ -602,6 +607,14 @@ ofwfb_mmap(video_adapter_t *adp, vm_offset_t offset, vm_paddr_t *paddr,
if (sc->sc_num_pciaddrs == 0)
return (ENOMEM);
/*
* Hack for Radeon...
*/
if (ofwfb_ignore_mmap_checks) {
*paddr = offset;
return (0);
}
/*
* Make sure the requested address lies within the PCI device's assigned addrs
*/