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[Qemu-devel] [PATCH V6 29/32] pci: cosmetic on pci_upadte_mappings()
From: |
Isaku Yamahata |
Subject: |
[Qemu-devel] [PATCH V6 29/32] pci: cosmetic on pci_upadte_mappings() |
Date: |
Fri, 30 Oct 2009 21:21:23 +0900 |
Remove one indentation of pci_update_mappings.
Just for cosmetics, no logic change.
Signed-off-by: Isaku Yamahata <address@hidden>
---
hw/pci.c | 146 ++++++++++++++++++++++++++++++++------------------------------
1 files changed, 76 insertions(+), 70 deletions(-)
diff --git a/hw/pci.c b/hw/pci.c
index beefae3..b43f6c6 100644
--- a/hw/pci.c
+++ b/hw/pci.c
@@ -637,86 +637,92 @@ static void pci_update_mappings(PCIDevice *d)
cmd = pci_get_word(d->config + PCI_COMMAND);
for(i = 0; i < PCI_NUM_REGIONS; i++) {
r = &d->io_regions[i];
- if (r->size != 0) {
- if (r->type & PCI_BASE_ADDRESS_SPACE_IO) {
- if (cmd & PCI_COMMAND_IO) {
- new_addr = pci_get_long(d->config + pci_bar(d, i));
- new_addr = new_addr & ~(r->size - 1);
- last_addr = new_addr + r->size - 1;
- /* NOTE: we have only 64K ioports on PC */
- if (last_addr <= new_addr || new_addr == 0 ||
- last_addr >= 0x10000) {
- new_addr = PCI_BAR_UNMAPPED;
- }
- } else {
+
+ /* this region isn't registered */
+ if (r->size == 0)
+ continue;
+
+ if (r->type & PCI_BASE_ADDRESS_SPACE_IO) {
+ if (cmd & PCI_COMMAND_IO) {
+ new_addr = pci_get_long(d->config + pci_bar(d, i));
+ new_addr = new_addr & ~(r->size - 1);
+ last_addr = new_addr + r->size - 1;
+ /* NOTE: we have only 64K ioports on PC */
+ if (last_addr <= new_addr || new_addr == 0 ||
+ last_addr >= 0x10000) {
new_addr = PCI_BAR_UNMAPPED;
}
} else {
- if (cmd & PCI_COMMAND_MEMORY) {
- if (r->type & PCI_BASE_ADDRESS_MEM_TYPE_64) {
- new_addr = pci_get_quad(d->config + pci_bar(d, i));
- } else {
- new_addr = pci_get_long(d->config + pci_bar(d, i));
- }
- /* the ROM slot has a specific enable bit */
- if (i == PCI_ROM_SLOT && !(new_addr &
PCI_ROM_ADDRESS_ENABLE))
- goto no_mem_map;
- new_addr = new_addr & ~(r->size - 1);
- last_addr = new_addr + r->size - 1;
- /* NOTE: we do not support wrapping */
- /* XXX: as we cannot support really dynamic
- mappings, we handle specific values as invalid
- mappings. */
- if (last_addr <= new_addr || new_addr == 0 ||
- last_addr == PCI_BAR_UNMAPPED ||
-
- /* Now pcibus_t is 64bit.
- * Check if 32 bit BAR wrap around explicitly.
- * Without this, PC ide doesn't work well.
- * TODO: remove this work around.
- */
- (!(r->type & PCI_BASE_ADDRESS_MEM_TYPE_64) &&
- last_addr >= UINT32_MAX) ||
-
- /*
- * OS is allowed to set BAR beyond its addressable
- * bits. For example, 32 bit OS can set 64bit bar
- * to >4G. Check it.
- */
- last_addr >= TARGET_PHYS_ADDR_MAX) {
- new_addr = PCI_BAR_UNMAPPED;
- }
+ new_addr = PCI_BAR_UNMAPPED;
+ }
+ } else {
+ if (cmd & PCI_COMMAND_MEMORY) {
+ if (r->type & PCI_BASE_ADDRESS_MEM_TYPE_64) {
+ new_addr = pci_get_quad(d->config + pci_bar(d, i));
} else {
- no_mem_map:
+ new_addr = pci_get_long(d->config + pci_bar(d, i));
+ }
+ /* the ROM slot has a specific enable bit */
+ if (i == PCI_ROM_SLOT && !(new_addr & PCI_ROM_ADDRESS_ENABLE))
+ goto no_mem_map;
+ new_addr = new_addr & ~(r->size - 1);
+ last_addr = new_addr + r->size - 1;
+ /* NOTE: we do not support wrapping */
+ /* XXX: as we cannot support really dynamic
+ mappings, we handle specific values as invalid
+ mappings. */
+ if (last_addr <= new_addr || new_addr == 0 ||
+ last_addr == PCI_BAR_UNMAPPED ||
+
+ /* Now pcibus_t is 64bit.
+ * Check if 32 bit BAR wrap around explicitly.
+ * Without this, PC ide doesn't work well.
+ * TODO: remove this work around.
+ */
+ (!(r->type & PCI_BASE_ADDRESS_MEM_TYPE_64) &&
+ last_addr >= UINT32_MAX) ||
+
+ /*
+ * OS is allowed to set BAR beyond its addressable
+ * bits. For example, 32 bit OS can set 64bit bar
+ * to >4G. Check it.
+ */
+ last_addr >= TARGET_PHYS_ADDR_MAX) {
new_addr = PCI_BAR_UNMAPPED;
}
+ } else {
+ no_mem_map:
+ new_addr = PCI_BAR_UNMAPPED;
}
- /* now do the real mapping */
- if (new_addr != r->addr) {
- if (r->addr != PCI_BAR_UNMAPPED) {
- if (r->type & PCI_BASE_ADDRESS_SPACE_IO) {
- int class;
- /* NOTE: specific hack for IDE in PC case:
- only one byte must be mapped. */
- class = pci_get_word(d->config + PCI_CLASS_DEVICE);
- if (class == 0x0101 && r->size == 4) {
- isa_unassign_ioport(r->addr + 2, 1);
- } else {
- isa_unassign_ioport(r->addr, r->size);
- }
- } else {
- cpu_register_physical_memory(pci_to_cpu_addr(r->addr),
- r->size,
- IO_MEM_UNASSIGNED);
- qemu_unregister_coalesced_mmio(r->addr, r->size);
- }
- }
- r->addr = new_addr;
- if (r->addr != PCI_BAR_UNMAPPED) {
- r->map_func(d, i, r->addr, r->size, r->type);
+ }
+
+ /* This bar isn't changed */
+ if (new_addr == r->addr)
+ continue;
+
+ /* now do the real mapping */
+ if (r->addr != PCI_BAR_UNMAPPED) {
+ if (r->type & PCI_BASE_ADDRESS_SPACE_IO) {
+ int class;
+ /* NOTE: specific hack for IDE in PC case:
+ only one byte must be mapped. */
+ class = pci_get_word(d->config + PCI_CLASS_DEVICE);
+ if (class == 0x0101 && r->size == 4) {
+ isa_unassign_ioport(r->addr + 2, 1);
+ } else {
+ isa_unassign_ioport(r->addr, r->size);
}
+ } else {
+ cpu_register_physical_memory(pci_to_cpu_addr(r->addr),
+ r->size,
+ IO_MEM_UNASSIGNED);
+ qemu_unregister_coalesced_mmio(r->addr, r->size);
}
}
+ r->addr = new_addr;
+ if (r->addr != PCI_BAR_UNMAPPED) {
+ r->map_func(d, i, r->addr, r->size, r->type);
+ }
}
}
--
1.6.0.2
- [Qemu-devel] [PATCH V6 15/32] pci: introduce FMT_PCIBUS for printf format for pcibus_t., (continued)
- [Qemu-devel] [PATCH V6 15/32] pci: introduce FMT_PCIBUS for printf format for pcibus_t., Isaku Yamahata, 2009/10/30
- [Qemu-devel] [PATCH V6 01/32] pci: fix PCI_DPRINTF() wrt variadic macro., Isaku Yamahata, 2009/10/30
- [Qemu-devel] [PATCH V6 18/32] pci: remove bus_num member from struct PCIBus., Isaku Yamahata, 2009/10/30
- [Qemu-devel] [PATCH V6 21/32] pci: move pci host stuff from pci.c to pci_host.c, Isaku Yamahata, 2009/10/30
- [Qemu-devel] [PATCH V6 27/32] pci: teach pci_default_config_write() ROM bar for normal/bridge device ., Isaku Yamahata, 2009/10/30
- [Qemu-devel] [PATCH V6 26/32] pci: use range helper functions., Isaku Yamahata, 2009/10/30
- [Qemu-devel] [PATCH V6 03/32] pci: use PCI_SLOT() and PCI_FUNC()., Isaku Yamahata, 2009/10/30
- [Qemu-devel] [PATCH V6 09/32] pci: s/PCI_ADDRESS_SPACE_/PCI_BASE_ADDRESS_SPACE_/ to match pci_regs.h, Isaku Yamahata, 2009/10/30
- [Qemu-devel] [PATCH V6 12/32] pci_host.h: move functions in pci_host.h into .c file., Isaku Yamahata, 2009/10/30
- [Qemu-devel] [PATCH V6 04/32] pci: define a constant to represent a unmapped bar and use it., Isaku Yamahata, 2009/10/30
- [Qemu-devel] [PATCH V6 29/32] pci: cosmetic on pci_upadte_mappings(),
Isaku Yamahata <=
- [Qemu-devel] [PATCH V6 22/32] pci_host: change the signature of pci_data_{read, write}., Isaku Yamahata, 2009/10/30
- [Qemu-devel] [PATCH V6 13/32] pci_host: consolidate pci config address access., Isaku Yamahata, 2009/10/30
- [Qemu-devel] [PATCH V6 23/32] vmstate: introduce VMSTATE_BUFFER_UNSAFE_INFO., Isaku Yamahata, 2009/10/30
- [Qemu-devel] [PATCH V6 24/32] pci: pcie host and mmcfg support., Isaku Yamahata, 2009/10/30
- [Qemu-devel] [PATCH V6 07/32] pci/bridge: clean up of pci_bridge_initfn(), Isaku Yamahata, 2009/10/30
- [Qemu-devel] [PATCH V6 31/32] pci: implement pci bridge filtering., Isaku Yamahata, 2009/10/30
- [Qemu-devel] [PATCH V6 25/32] pci: add helper functions to check ranges overlap., Isaku Yamahata, 2009/10/30
- [Qemu-devel] [PATCH V6 08/32] pci: clean up pci_init_wmask(), Isaku Yamahata, 2009/10/30
- [Qemu-devel] [PATCH V6 28/32] pci: initialize pci config headers depending it pci header type., Isaku Yamahata, 2009/10/30
- [Qemu-devel] [PATCH V6 32/32] pci/monitor: print out bridge's filtering values and so on., Isaku Yamahata, 2009/10/30