talexander
/
freebsd_amp_hwpstate
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fixed FreeBSD/mips MALTA support for QEMU 

Recource management functions in GT PCI controller driver
treated memory/IO resources as KSEG1 addresses, later during
activation these values would be increased by KSEG1 base again
rendering the address invalid and causing "bus error" trap.

Actual logic was converted to use real physical addresses,
so mapping takes place only during activation.

Submitted by:	Aleksandr Rybalko <ray@FreeBSD.org>
Approved by:	re (gjb)
This commit is contained in:
Oleksandr Tymoshenko 2016-06-29 23:33:44 +00:00
parent eb39a64db8
commit 4b61754c68
1 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
sys/mips/malta/gt_pci.c
View File

@ -272,7 +272,7 @@ gt_pci_attach(device_t dev)
sc->sc_st = mips_bus_space_generic;
/* Use KSEG1 to access IO ports for it is uncached */
sc->sc_io = MIPS_PHYS_TO_KSEG1(MALTA_PCI0_IO_BASE);
sc->sc_io = MALTA_PCI0_IO_BASE;
sc->sc_io_rman.rm_type = RMAN_ARRAY;
sc->sc_io_rman.rm_descr = "GT64120 PCI I/O Ports";
/*
@ -285,7 +285,7 @@ gt_pci_attach(device_t dev)
}
/* Use KSEG1 to access PCI memory for it is uncached */
sc->sc_mem = MIPS_PHYS_TO_KSEG1(MALTA_PCIMEM1_BASE);
sc->sc_mem = MALTA_PCIMEM1_BASE;
sc->sc_mem_rman.rm_type = RMAN_ARRAY;
sc->sc_mem_rman.rm_descr = "GT64120 PCI Memory";
if (rman_init(&sc->sc_mem_rman) != 0 ||
@ -310,9 +310,9 @@ gt_pci_attach(device_t dev)
if (bus_space_map(sc->sc_st, IO_ICU2, 2, 0, &sc->sc_ioh_icu2) != 0)
device_printf(dev, "unable to map ICU2 registers\n");
#else
sc->sc_ioh_elcr = sc->sc_io + 0x4d0;
sc->sc_ioh_icu1 = sc->sc_io + IO_ICU1;
sc->sc_ioh_icu2 = sc->sc_io + IO_ICU2;
sc->sc_ioh_elcr = MIPS_PHYS_TO_KSEG1(sc->sc_io + 0x4d0);
sc->sc_ioh_icu1 = MIPS_PHYS_TO_KSEG1(sc->sc_io + IO_ICU1);
sc->sc_ioh_icu2 = MIPS_PHYS_TO_KSEG1(sc->sc_io + IO_ICU2);
#endif