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vfio/pci: Cleanup ATI 0x3c3 quirk

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This is an easy quirk that really doesn't need a data structure if
its own.  We can pass vdev as the opaque data and access to the
MemoryRegion isn't required.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Alex Williamson 2015-09-23 13:04:47 -06:00
parent 8c4f234853
commit b946d28611
2 changed files with 11 additions and 19 deletions
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26
hw/vfio/pci-quirks.c
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@ -242,12 +242,11 @@ static const MemoryRegionOps vfio_generic_quirk = {
static uint64_t vfio_ati_3c3_quirk_read(void *opaque,
hwaddr addr, unsigned size)
{
VFIOLegacyQuirk *quirk = opaque;
VFIOPCIDevice *vdev = quirk->vdev;
VFIOPCIDevice *vdev = opaque;
uint64_t data = vfio_pci_read_config(&vdev->pdev,
PCI_BASE_ADDRESS_0 + (4 * 4) + 1,
size);
trace_vfio_ati_3c3_quirk_read(data);
PCI_BASE_ADDRESS_4 + 1, size);
trace_vfio_quirk_ati_3c3_read(vdev->vbasedev.name, data);
return data;
}
@ -259,29 +258,22 @@ static const MemoryRegionOps vfio_ati_3c3_quirk = {
static void vfio_vga_probe_ati_3c3_quirk(VFIOPCIDevice *vdev)
{
PCIDevice *pdev = &vdev->pdev;
VFIOQuirk *quirk;
VFIOLegacyQuirk *legacy;
if (pci_get_word(pdev->config + PCI_VENDOR_ID) != PCI_VENDOR_ID_ATI) {
return;
}
/*
* As long as the BAR is >= 256 bytes it will be aligned such that the
* lower byte is always zero. Filter out anything else, if it exists.
*/
if (!vdev->bars[4].ioport || vdev->bars[4].region.size < 256) {
if (!vfio_pci_is(vdev, PCI_VENDOR_ID_ATI, PCI_ANY_ID) ||
!vdev->bars[4].ioport || vdev->bars[4].region.size < 256) {
return;
}
quirk = g_malloc0(sizeof(*quirk));
legacy = quirk->data = g_malloc0(sizeof(*legacy));
quirk->mem = legacy->mem = g_malloc0_n(sizeof(MemoryRegion), 1);
quirk->mem = g_malloc0_n(sizeof(MemoryRegion), 1);
quirk->nr_mem = 1;
legacy->vdev = vdev;
memory_region_init_io(quirk->mem, OBJECT(vdev), &vfio_ati_3c3_quirk, legacy,
memory_region_init_io(quirk->mem, OBJECT(vdev), &vfio_ati_3c3_quirk, vdev,
"vfio-ati-3c3-quirk", 1);
memory_region_add_subregion(&vdev->vga.region[QEMU_PCI_VGA_IO_HI].mem,
3 /* offset 3 bytes from 0x3c0 */, quirk->mem);
@ -289,7 +281,7 @@ static void vfio_vga_probe_ati_3c3_quirk(VFIOPCIDevice *vdev)
QLIST_INSERT_HEAD(&vdev->vga.region[QEMU_PCI_VGA_IO_HI].quirks,
quirk, next);
trace_vfio_vga_probe_ati_3c3_quirk(vdev->vbasedev.name);
trace_vfio_quirk_ati_3c3_probe(vdev->vbasedev.name);
}
/*

4
trace-events
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@ -1550,8 +1550,6 @@ vfio_generic_window_quirk_write(const char * region_name, const char *name, int
vfio_generic_quirk_read(const char * region_name, const char *name, int index, uint64_t addr, int size, uint64_t data) "%s read(%s:BAR%d+0x%"PRIx64", %d = 0x%"PRIx64
# remove )
vfio_generic_quirk_write(const char * region_name, const char *name, int index, uint64_t addr, uint64_t data, int size) "%s write(%s:BAR%d+0x%"PRIx64", 0x%"PRIx64", %d"
vfio_ati_3c3_quirk_read(uint64_t data) " (0x3c3, 1) = 0x%"PRIx64
vfio_vga_probe_ati_3c3_quirk(const char *name) "Enabled ATI/AMD quirk 0x3c3 BAR4for device %s"
vfio_probe_ati_bar4_window_quirk(const char *name) "Enabled ATI/AMD BAR4 window quirk for device %s"
#issue with )
vfio_rtl8168_quirk_read(const char *name, const char *type, uint64_t val) "%s [%s]: 0x%"PRIx64
@ -1587,6 +1585,8 @@ vfio_pci_reset_pm(const char *name) "%s PCI PM Reset"
# hw/vfio/pci-quirks.
vfio_quirk_rom_blacklisted(const char *name, uint16_t vid, uint16_t did) "%s %04x:%04x"
vfio_quirk_ati_3c3_read(const char *name, uint64_t data) "%s 0x%"PRIx64
vfio_quirk_ati_3c3_probe(const char *name) "%s"
# hw/vfio/vfio-common.c
vfio_region_write(const char *name, int index, uint64_t addr, uint64_t data, unsigned size) " (%s:region%d+0x%"PRIx64", 0x%"PRIx64 ", %d)"