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msix: Use replace local defines with pci_regs versions 

This also cleans up an open-coded 64-bit message address readout.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Jan Kiszka 2011-06-09 09:39:56 +02:00 committed by Michael S. Tsirkin
parent 81486b55f4
commit 01731cfb39
1 changed files with 15 additions and 25 deletions
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40
hw/msix.c
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@ -16,9 +16,6 @@
#include "pci.h"
#include "range.h"
/* MSI-X capability structure */
#define MSIX_TABLE_OFFSET 4
#define MSIX_PBA_OFFSET 8
#define MSIX_CAP_LENGTH 12
/* MSI enable bit and maskall bit are in byte 1 in FLAGS register */
@ -26,14 +23,6 @@
#define MSIX_ENABLE_MASK (PCI_MSIX_FLAGS_ENABLE >> 8)
#define MSIX_MASKALL_MASK (PCI_MSIX_FLAGS_MASKALL >> 8)
/* MSI-X table format */
#define MSIX_MSG_ADDR 0
#define MSIX_MSG_UPPER_ADDR 4
#define MSIX_MSG_DATA 8
#define MSIX_VECTOR_CTRL 12
#define MSIX_ENTRY_SIZE 16
#define MSIX_VECTOR_MASK 0x1
/* How much space does an MSIX table need. */
/* The spec requires giving the table structure
* a 4K aligned region all by itself. */
@ -82,9 +71,9 @@ static int msix_add_config(struct PCIDevice *pdev, unsigned short nentries,
pci_set_word(config + PCI_MSIX_FLAGS, nentries - 1);
/* Table on top of BAR */
pci_set_long(config + MSIX_TABLE_OFFSET, bar_size | bar_nr);
pci_set_long(config + PCI_MSIX_TABLE, bar_size | bar_nr);
/* Pending bits on top of that */
pci_set_long(config + MSIX_PBA_OFFSET, (bar_size + MSIX_PAGE_PENDING) |
pci_set_long(config + PCI_MSIX_PBA, (bar_size + MSIX_PAGE_PENDING) |
bar_nr);
pdev->msix_cap = config_offset;
/* Make flags bit writeable. */
@ -140,9 +129,10 @@ static int msix_function_masked(PCIDevice *dev)
static int msix_is_masked(PCIDevice *dev, int vector)
{
unsigned offset = vector * MSIX_ENTRY_SIZE + MSIX_VECTOR_CTRL;
unsigned offset =
vector * PCI_MSIX_ENTRY_SIZE + PCI_MSIX_ENTRY_VECTOR_CTRL;
return msix_function_masked(dev) ||
dev->msix_table_page[offset] & MSIX_VECTOR_MASK;
dev->msix_table_page[offset] & PCI_MSIX_ENTRY_CTRL_MASKBIT;
}
static void msix_handle_mask_update(PCIDevice *dev, int vector)
@ -184,7 +174,7 @@ static void msix_mmio_writel(void *opaque, target_phys_addr_t addr,
{
PCIDevice *dev = opaque;
unsigned int offset = addr & (MSIX_PAGE_SIZE - 1) & ~0x3;
int vector = offset / MSIX_ENTRY_SIZE;
int vector = offset / PCI_MSIX_ENTRY_SIZE;
pci_set_long(dev->msix_table_page + offset, val);
msix_handle_mask_update(dev, vector);
}
@ -208,7 +198,7 @@ void msix_mmio_map(PCIDevice *d, int region_num,
pcibus_t addr, pcibus_t size, int type)
{
uint8_t *config = d->config + d->msix_cap;
uint32_t table = pci_get_long(config + MSIX_TABLE_OFFSET);
uint32_t table = pci_get_long(config + PCI_MSIX_TABLE);
uint32_t offset = table & ~(MSIX_PAGE_SIZE - 1);
/* TODO: for assigned devices, we'll want to make it possible to map
* pending bits separately in case they are in a separate bar. */
@ -226,8 +216,9 @@ static void msix_mask_all(struct PCIDevice *dev, unsigned nentries)
{
int vector;
for (vector = 0; vector < nentries; ++vector) {
unsigned offset = vector * MSIX_ENTRY_SIZE + MSIX_VECTOR_CTRL;
dev->msix_table_page[offset] |= MSIX_VECTOR_MASK;
unsigned offset =
vector * PCI_MSIX_ENTRY_SIZE + PCI_MSIX_ENTRY_VECTOR_CTRL;
dev->msix_table_page[offset] |= PCI_MSIX_ENTRY_CTRL_MASKBIT;
}
}
@ -313,7 +304,7 @@ void msix_save(PCIDevice *dev, QEMUFile *f)
return;
}
qemu_put_buffer(f, dev->msix_table_page, n * MSIX_ENTRY_SIZE);
qemu_put_buffer(f, dev->msix_table_page, n * PCI_MSIX_ENTRY_SIZE);
qemu_put_buffer(f, dev->msix_table_page + MSIX_PAGE_PENDING, (n + 7) / 8);
}
@ -327,7 +318,7 @@ void msix_load(PCIDevice *dev, QEMUFile *f)
}
msix_free_irq_entries(dev);
qemu_get_buffer(f, dev->msix_table_page, n * MSIX_ENTRY_SIZE);
qemu_get_buffer(f, dev->msix_table_page, n * PCI_MSIX_ENTRY_SIZE);
qemu_get_buffer(f, dev->msix_table_page + MSIX_PAGE_PENDING, (n + 7) / 8);
}
@ -355,7 +346,7 @@ uint32_t msix_bar_size(PCIDevice *dev)
/* Send an MSI-X message */
void msix_notify(PCIDevice *dev, unsigned vector)
{
uint8_t *table_entry = dev->msix_table_page + vector * MSIX_ENTRY_SIZE;
uint8_t *table_entry = dev->msix_table_page + vector * PCI_MSIX_ENTRY_SIZE;
uint64_t address;
uint32_t data;
@ -366,9 +357,8 @@ void msix_notify(PCIDevice *dev, unsigned vector)
return;
}
address = pci_get_long(table_entry + MSIX_MSG_UPPER_ADDR);
address = (address << 32) | pci_get_long(table_entry + MSIX_MSG_ADDR);
data = pci_get_long(table_entry + MSIX_MSG_DATA);
address = pci_get_quad(table_entry + PCI_MSIX_ENTRY_LOWER_ADDR);
data = pci_get_long(table_entry + PCI_MSIX_ENTRY_DATA);
stl_phys(address, data);
}