powerpc/ps3: Set driver coherent_dma_mask

Set the coherent_dma_mask for the PS3 ehci, ohci, and snd devices.

Silences WARN_ON_ONCE messages emitted by the dma_alloc_attrs() routine.

Reported-by: Fredrik Noring <noring@nocrew.org>
Signed-off-by: Geoff Levand <geoff@infradead.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

drivers/usb/host/ehci-ps3.c

@@ -86,7 +86,7 @@ static int ps3_ehci_probe(struct ps3_system_bus_device *dev)
 	int result;
 	struct usb_hcd *hcd;
 	unsigned int virq;
-	static u64 dummy_mask = DMA_BIT_MASK(32);
+	static u64 dummy_mask;
 
 	if (usb_disabled()) {
 		result = -ENODEV;
@@ -131,7 +131,9 @@ static int ps3_ehci_probe(struct ps3_system_bus_device *dev)
 		goto fail_irq;
 	}
 
-	dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */
+	dummy_mask = DMA_BIT_MASK(32);
+	dev->core.dma_mask = &dummy_mask;
+	dma_set_coherent_mask(&dev->core, dummy_mask);
 
 	hcd = usb_create_hcd(&ps3_ehci_hc_driver, &dev->core, dev_name(&dev->core));
 

drivers/usb/host/ohci-ps3.c

@@ -69,7 +69,7 @@ static int ps3_ohci_probe(struct ps3_system_bus_device *dev)
 	int result;
 	struct usb_hcd *hcd;
 	unsigned int virq;
-	static u64 dummy_mask = DMA_BIT_MASK(32);
+	static u64 dummy_mask;
 
 	if (usb_disabled()) {
 		result = -ENODEV;
@@ -115,7 +115,9 @@ static int ps3_ohci_probe(struct ps3_system_bus_device *dev)
 		goto fail_irq;
 	}
 
-	dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */
+	dummy_mask = DMA_BIT_MASK(32);
+	dev->core.dma_mask = &dummy_mask;
+	dma_set_coherent_mask(&dev->core, dummy_mask);
 
 	hcd = usb_create_hcd(&ps3_ohci_hc_driver, &dev->core, dev_name(&dev->core));
 

sound/ppc/snd_ps3.c

@@ -930,6 +930,7 @@ static int snd_ps3_driver_probe(struct ps3_system_bus_device *dev)
 {
 	int i, ret;
 	u64 lpar_addr, lpar_size;
+	static u64 dummy_mask;
 
 	if (WARN_ON(!firmware_has_feature(FW_FEATURE_PS3_LV1)))
 		return -ENODEV;
@@ -970,6 +971,10 @@ static int snd_ps3_driver_probe(struct ps3_system_bus_device *dev)
 		goto clean_mmio;
 	}
 
+	dummy_mask = DMA_BIT_MASK(32);
+	dev->core.dma_mask = &dummy_mask;
+	dma_set_coherent_mask(&dev->core, dummy_mask);
+
 	snd_ps3_audio_set_base_addr(dev->d_region->bus_addr);
 
 	/* CONFIG_SND_PS3_DEFAULT_START_DELAY */