On Tue, 8 Jun 2004, Thomas Winischhofer wrote: > I am having a hard time making the SiS driver run on a MIPS machine. > It's some Thoshiba system, with a little-endian CPU. (Under Debian, this > goes by the name "Mipsel" as opposed by the big-endian "Mips"). The user > is running Debian's extremely patched almost-4.4.
> Current situation: Whenever an i/o register is accessed via inb/outb > macros, the X server exits with a signal 11. > I checked compiler.h and figured that i/o access (as done via ports on > x86), it like MMIO access on MIPS, ie simply writing to memory. So I > tried mapping my register area into virtual space (like I do with the > mmio area), to no avail. Same result, sig 11. > Background info: SiS hardware has a "relocated" i/o ports area which > allows access to i/o ports not only at 0x3xx etc, but also at some other > address. In order to make the vgahw module work with these ports instead > of the normal ones at 0x3xx, I "abuse" PIOOffset by adding the correct > offset. But no matter whether the vgahw module or my own code accesses > the registers, the sig 11 happens anyway. > The Linux framebuffer driver works well without mapping this register > area (which is at physical 0x4000, FYI). > Is there anything special about MIPS that I missed? Well, domain support for MIPS has yet to be written. Ditto for PowerPC. And that for Alpha's is somewhat broken. Lack of time, for one, and lack of hardware. Marc. +----------------------------------+-----------------------------------+ | Marc Aurele La France | work: 1-780-492-9310 | | Computing and Network Services | fax: 1-780-492-1729 | | 352 General Services Building | email: [EMAIL PROTECTED] | | University of Alberta +-----------------------------------+ | Edmonton, Alberta | | | T6G 2H1 | Standard disclaimers apply | | CANADA | | +----------------------------------+-----------------------------------+ XFree86 developer and VP. ATI driver and X server internals. _______________________________________________ Devel mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/devel
