From 08a22d34e7aa37e9c9e3d4f093841bced0b16326 Mon Sep 17 00:00:00 2001 From: grehan Date: Sat, 21 May 2005 00:22:57 +0000 Subject: Quick hack-o-rama to allow the Xorg Radeon driver to start up. It tries to mmap memory outside of the available BARs, so allow the range checks to be relaxed with a sysctl. --- sys/powerpc/ofw/ofw_syscons.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'sys/powerpc/ofw') diff --git a/sys/powerpc/ofw/ofw_syscons.c b/sys/powerpc/ofw/ofw_syscons.c index 3047d33..38db742 100644 --- a/sys/powerpc/ofw/ofw_syscons.c +++ b/sys/powerpc/ofw/ofw_syscons.c @@ -57,6 +57,11 @@ __FBSDID("$FreeBSD$"); #include #include +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[]; @@ -603,6 +608,14 @@ ofwfb_mmap(video_adapter_t *adp, vm_offset_t offset, vm_paddr_t *paddr, 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 */ for (i = 0; i < sc->sc_num_pciaddrs; i++) -- cgit v1.1