Commit 9c95f183 authored by Andreas Färber's avatar Andreas Färber
Browse files

prep_pci: Simplify I/O endianness 



The prep PowerPC CPU is Big Endian. An explicit byte swap therefore
effectively becomes Little Endian.

Remove explicit byte swaps and mark as Little Endian.

Signed-off-by: default avatarAndreas Färber <andreas.faerber@web.de>
Reviewed-by: default avatarAlexander Graf <agraf@suse.de>
Cc: Michael S. Tsirkin <mst@redhat.com>
parent 55526054

hw/prep_pci.c

+1 −5
Original line number Diff line number Diff line
@@ -53,14 +53,12 @@ static void PPC_PCIIO_writeb (void *opaque, target_phys_addr_t addr, uint32_t va 
static void PPC_PCIIO_writew (void *opaque, target_phys_addr_t addr, uint32_t val)

{

    PREPPCIState *s = opaque;

    val = bswap16(val);

    pci_data_write(s->bus, PPC_PCIIO_config(addr), val, 2);

}



static void PPC_PCIIO_writel (void *opaque, target_phys_addr_t addr, uint32_t val)

{

    PREPPCIState *s = opaque;

    val = bswap32(val);

    pci_data_write(s->bus, PPC_PCIIO_config(addr), val, 4);

}
@@ -77,7 +75,6 @@ static uint32_t PPC_PCIIO_readw (void *opaque, target_phys_addr_t addr) 
    PREPPCIState *s = opaque;

    uint32_t val;

    val = pci_data_read(s->bus, PPC_PCIIO_config(addr), 2);

    val = bswap16(val);

    return val;

}
@@ -86,7 +83,6 @@ static uint32_t PPC_PCIIO_readl (void *opaque, target_phys_addr_t addr) 
    PREPPCIState *s = opaque;

    uint32_t val;

    val = pci_data_read(s->bus, PPC_PCIIO_config(addr), 4);

    val = bswap32(val);

    return val;

}
@@ -95,7 +91,7 @@ static const MemoryRegionOps PPC_PCIIO_ops = { 
        .read = { PPC_PCIIO_readb, PPC_PCIIO_readw, PPC_PCIIO_readl, },

        .write = { PPC_PCIIO_writeb, PPC_PCIIO_writew, PPC_PCIIO_writel, },

    },

    .endianness = DEVICE_NATIVE_ENDIAN,

    .endianness = DEVICE_LITTLE_ENDIAN,

};



static int prep_map_irq(PCIDevice *pci_dev, int irq_num)