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Fixed FreeBSD/mips MALTA support for QEMU

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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:
gonzo 2016-06-29 23:33:44 +00:00
parent c3a4dbd1d2
commit 62a7c9548d
1 changed files with 5 additions and 5 deletions
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10
sys/mips/malta/gt_pci.c
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@ -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