> -----Original Message----- > From: Gerd Hoffmann [mailto:kraxel@xxxxxxxxxx] > Sent: Monday, February 24, 2014 5:17 AM > To: linux-fbdev@xxxxxxxxxxxxxxx > Cc: linux-kernel@xxxxxxxxxxxxxxx; gregkh@xxxxxxxxxxxxxxxxxxx; KY > Srinivasan; Abhishek Gupta (LIS); Haiyang Zhang; jasowang@xxxxxxxxxx; > tomi.valkeinen@xxxxxx; devel@xxxxxxxxxxxxxxxxxxxxxx; Gerd Hoffmann > Subject: [PATCH v3 2/4] vmbus: use resource for hyperv mmio region > > Use a resource for the hyperv mmio region instead of start/size variables. > Register the region properly so it shows up in /proc/iomem. > Thanks Gerd. K. Y > Signed-off-by: Gerd Hoffmann <kraxel@xxxxxxxxxx> Signed-off-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx> > --- > drivers/hv/vmbus_drv.c | 16 ++++++++++------ include/linux/hyperv.h | 3 > +-- > 2 files changed, 11 insertions(+), 8 deletions(-) > > diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index > 2352ae48..a14f603 100644 > --- a/drivers/hv/vmbus_drv.c > +++ b/drivers/hv/vmbus_drv.c > @@ -43,10 +43,12 @@ static struct acpi_device *hv_acpi_dev; static struct > tasklet_struct msg_dpc; static struct completion probe_event; static int irq; > -u64 hyperv_mmio_start; > -EXPORT_SYMBOL_GPL(hyperv_mmio_start); > -u64 hyperv_mmio_size; > -EXPORT_SYMBOL_GPL(hyperv_mmio_size); > + > +struct resource hyperv_mmio = { > + .name = "hyperv mmio", > + .flags = IORESOURCE_MEM, > +}; > +EXPORT_SYMBOL_GPL(hyperv_mmio); > > static int vmbus_exists(void) > { > @@ -902,8 +904,8 @@ static acpi_status vmbus_walk_resources(struct > acpi_resource *res, void *ctx) > break; > > case ACPI_RESOURCE_TYPE_ADDRESS64: > - hyperv_mmio_start = res->data.address64.minimum; > - hyperv_mmio_size = res->data.address64.address_length; > + hyperv_mmio.start = res->data.address64.minimum; > + hyperv_mmio.end = res->data.address64.maximum; > break; > } > > @@ -933,6 +935,8 @@ static int vmbus_acpi_add(struct acpi_device *device) > > if (ACPI_FAILURE(result)) > goto acpi_walk_err; > + if (hyperv_mmio.start && hyperv_mmio.end) > + request_resource(&iomem_resource, > &hyperv_mmio); > } > ret_val = 0; > > diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index > be3028f..c93e342 100644 > --- a/include/linux/hyperv.h > +++ b/include/linux/hyperv.h > @@ -1459,8 +1459,7 @@ int hv_vss_init(struct hv_util_service *); void > hv_vss_deinit(void); void hv_vss_onchannelcallback(void *); > > -extern u64 hyperv_mmio_start; > -extern u64 hyperv_mmio_size; > +extern struct resource hyperv_mmio; > > /* > * Negotiated version with the Host. > -- > 1.8.3.1 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
