On Thu, Nov 11, 2010 at 07:55:43PM -0700, Alex Williamson wrote:
> Capabilities are allocated in bytes, so we can track both whether
> a byte is used and by what capability in the same structure.
>
> Remove pci_reserve_capability() as there are no users.
>
> Signed-off-by: Alex Williamson <alex.williamson@xxxxxxxxxx>
I actually wanted to remove the used array completely and ask
all users to add offsets directly.
Will this be needed then?
> ---
>
> hw/pci.c | 16 +++++-----------
> hw/pci.h | 6 ++----
> 2 files changed, 7 insertions(+), 15 deletions(-)
>
> diff --git a/hw/pci.c b/hw/pci.c
> index 6b2b320..e1e8a77 100644
> --- a/hw/pci.c
> +++ b/hw/pci.c
> @@ -730,7 +730,7 @@ static void pci_config_alloc(PCIDevice *pci_dev)
> pci_dev->config = qemu_mallocz(config_size);
> pci_dev->cmask = qemu_mallocz(config_size);
> pci_dev->wmask = qemu_mallocz(config_size);
> - pci_dev->used = qemu_mallocz(config_size);
> + pci_dev->cap_map = qemu_mallocz(config_size);
> }
>
> static void pci_config_free(PCIDevice *pci_dev)
> @@ -738,7 +738,7 @@ static void pci_config_free(PCIDevice *pci_dev)
> qemu_free(pci_dev->config);
> qemu_free(pci_dev->cmask);
> qemu_free(pci_dev->wmask);
> - qemu_free(pci_dev->used);
> + qemu_free(pci_dev->cap_map);
> }
>
> /* -1 for devfn means auto assign */
> @@ -1928,7 +1928,7 @@ static int pci_find_space(PCIDevice *pdev, uint8_t size)
> int offset = PCI_CONFIG_HEADER_SIZE;
> int i;
> for (i = PCI_CONFIG_HEADER_SIZE; i < config_size; ++i)
> - if (pdev->used[i])
> + if (pdev->cap_map[i])
> offset = i + 1;
> else if (i - offset + 1 == size)
> return offset;
> @@ -2033,7 +2033,7 @@ int pci_add_capability_at_offset(PCIDevice *pdev, uint8_t cap_id,
> config[PCI_CAP_LIST_ID] = cap_id;
> config[PCI_CAP_LIST_NEXT] = pdev->config[PCI_CAPABILITY_LIST];
> pdev->config[PCI_CAPABILITY_LIST] = offset;
> - memset(pdev->used + offset, 0xFF, size);
> + memset(pdev->cap_map + offset, cap_id, size);
> /* Make capability read-only by default */
> memset(pdev->wmask + offset, 0, size);
> /* Check capability by default */
> @@ -2068,7 +2068,7 @@ void pci_del_capability(PCIDevice *pdev, uint8_t cap_id, uint8_t size)
> memset(pdev->wmask + offset, 0xff, size);
> /* Clear cmask as device-specific registers can't be checked */
> memset(pdev->cmask + offset, 0, size);
> - memset(pdev->used + offset, 0, size);
> + memset(pdev->cap_map + offset, 0, size);
>
> if (!pdev->config[PCI_CAPABILITY_LIST]) {
> pdev->config[PCI_STATUS] &= ~PCI_STATUS_CAP_LIST;
> @@ -2076,12 +2076,6 @@ void pci_del_capability(PCIDevice *pdev, uint8_t cap_id, uint8_t size)
> }
> }
>
> -/* Reserve space for capability at a known offset (to call after load). */
> -void pci_reserve_capability(PCIDevice *pdev, uint8_t offset, uint8_t size)
> -{
> - memset(pdev->used + offset, 0xff, size);
> -}
> -
> uint8_t pci_find_capability(PCIDevice *pdev, uint8_t cap_id)
> {
> return pci_find_capability_list(pdev, cap_id, NULL);
> diff --git a/hw/pci.h b/hw/pci.h
> index 0712e55..2265c70 100644
> --- a/hw/pci.h
> +++ b/hw/pci.h
> @@ -151,8 +151,8 @@ struct PCIDevice {
> /* Used to implement R/W bytes */
> uint8_t *wmask;
>
> - /* Used to allocate config space for capabilities. */
> - uint8_t *used;
> + /* Used to allocate config space and track capabilities. */
> + uint8_t *cap_map;
>
> /* the following fields are read only */
> PCIBus *bus;
> @@ -239,8 +239,6 @@ int pci_add_capability_at_offset(PCIDevice *pci_dev, uint8_t cap_id,
>
> void pci_del_capability(PCIDevice *pci_dev, uint8_t cap_id, uint8_t cap_size);
>
> -void pci_reserve_capability(PCIDevice *pci_dev, uint8_t offset, uint8_t size);
> -
> uint8_t pci_find_capability(PCIDevice *pci_dev, uint8_t cap_id);
>
> uint32_t pci_default_read_config(PCIDevice *d,
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