On Tue, Apr 05, 2016 at 06:18:18PM -0700, Jake Oshins wrote:
> Existing code just called release_mem_region(). Adding a
> wrapper around it allows the more complex range tracking
> that is introduced later in this patch series.
>
> Signed-off-by: Jake Oshins <jakeo@xxxxxxxxxxxxx>
With typo fix below,
Acked-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
This is mostly non-PCI, so I assume somebody else will merge this series.
> ---
> drivers/hv/vmbus_drv.c | 15 +++++++++++++++
> drivers/pci/host/pci-hyperv.c | 14 +++++++-------
> drivers/video/fbdev/hyperv_fb.c | 4 ++--
> include/linux/hyperv.h | 2 +-
> 4 files changed, 25 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
> index 799518b..60553c1 100644
> --- a/drivers/hv/vmbus_drv.c
> +++ b/drivers/hv/vmbus_drv.c
> @@ -1188,6 +1188,21 @@ exit:
> EXPORT_SYMBOL_GPL(vmbus_allocate_mmio);
>
> /**
> + * vmbus_free_mmio() - Free a memory-mapped I/O range.
> + * @start: Base address of region to release.
> + * @size: Size of the range to be allocated
> + *
> + * This function releases anything requested by
> + * vmbus_mmio_allocate().
s/vmbus_mmio_allocate/vmbus_allocate_mmio/, I think.
> + */
> +void vmbus_free_mmio(resource_size_t start, resource_size_t size)
> +{
> + release_mem_region(start, size);
> +
> +}
> +EXPORT_SYMBOL_GPL(vmbus_free_mmio);
> +
> +/**
> * vmbus_cpu_number_to_vp_number() - Map CPU to VP.
> * @cpu_number: CPU number in Linux terms
> *
> diff --git a/drivers/pci/host/pci-hyperv.c b/drivers/pci/host/pci-hyperv.c
> index ed651ba..f2559b6 100644
> --- a/drivers/pci/host/pci-hyperv.c
> +++ b/drivers/pci/host/pci-hyperv.c
> @@ -1795,14 +1795,14 @@ static void hv_pci_free_bridge_windows(struct hv_pcibus_device *hbus)
>
> if (hbus->low_mmio_space && hbus->low_mmio_res) {
> hbus->low_mmio_res->flags |= IORESOURCE_BUSY;
> - release_mem_region(hbus->low_mmio_res->start,
> - resource_size(hbus->low_mmio_res));
> + vmbus_free_mmio(hbus->low_mmio_res->start,
> + resource_size(hbus->low_mmio_res));
> }
>
> if (hbus->high_mmio_space && hbus->high_mmio_res) {
> hbus->high_mmio_res->flags |= IORESOURCE_BUSY;
> - release_mem_region(hbus->high_mmio_res->start,
> - resource_size(hbus->high_mmio_res));
> + vmbus_free_mmio(hbus->high_mmio_res->start,
> + resource_size(hbus->high_mmio_res));
> }
> }
>
> @@ -1880,8 +1880,8 @@ static int hv_pci_allocate_bridge_windows(struct hv_pcibus_device *hbus)
>
> release_low_mmio:
> if (hbus->low_mmio_res) {
> - release_mem_region(hbus->low_mmio_res->start,
> - resource_size(hbus->low_mmio_res));
> + vmbus_free_mmio(hbus->low_mmio_res->start,
> + resource_size(hbus->low_mmio_res));
> }
>
> return ret;
> @@ -1924,7 +1924,7 @@ static int hv_allocate_config_window(struct hv_pcibus_device *hbus)
>
> static void hv_free_config_window(struct hv_pcibus_device *hbus)
> {
> - release_mem_region(hbus->mem_config->start, PCI_CONFIG_MMIO_LENGTH);
> + vmbus_free_mmio(hbus->mem_config->start, PCI_CONFIG_MMIO_LENGTH);
> }
>
> /**
> diff --git a/drivers/video/fbdev/hyperv_fb.c b/drivers/video/fbdev/hyperv_fb.c
> index e2451bd..2fd49b2 100644
> --- a/drivers/video/fbdev/hyperv_fb.c
> +++ b/drivers/video/fbdev/hyperv_fb.c
> @@ -743,7 +743,7 @@ static int hvfb_getmem(struct hv_device *hdev, struct fb_info *info)
> err3:
> iounmap(fb_virt);
> err2:
> - release_mem_region(par->mem->start, screen_fb_size);
> + vmbus_free_mmio(par->mem->start, screen_fb_size);
> par->mem = NULL;
> err1:
> if (!gen2vm)
> @@ -758,7 +758,7 @@ static void hvfb_putmem(struct fb_info *info)
> struct hvfb_par *par = info->par;
>
> iounmap(info->screen_base);
> - release_mem_region(par->mem->start, screen_fb_size);
> + vmbus_free_mmio(par->mem->start, screen_fb_size);
> par->mem = NULL;
> }
>
> diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
> index aa0fadc..ecd81c3 100644
> --- a/include/linux/hyperv.h
> +++ b/include/linux/hyperv.h
> @@ -1091,7 +1091,7 @@ int vmbus_allocate_mmio(struct resource **new, struct hv_device *device_obj,
> resource_size_t min, resource_size_t max,
> resource_size_t size, resource_size_t align,
> bool fb_overlap_ok);
> -
> +void vmbus_free_mmio(resource_size_t start, resource_size_t size);
> int vmbus_cpu_number_to_vp_number(int cpu_number);
> u64 hv_do_hypercall(u64 control, void *input, void *output);
>
> --
> 1.9.1
>
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