From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 8 Jun 2009 12:49:26 +0000 (+0200)
Subject: ALSA: ctxfi - Fix DMA mask for emu20k2 chip
X-Git-Tag: firefly_0821_release~13628^2~4^2~13
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=4836ac655410e7f126d316b0be062b38746f7529;p=firefly-linux-kernel-4.4.55.git

ALSA: ctxfi - Fix DMA mask for emu20k2 chip

Allow 64bit DMA mask for emu20k2 chip, too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---

diff --git a/sound/pci/ctxfi/cthw20k2.c b/sound/pci/ctxfi/cthw20k2.c
index 041199fbae16..edbfb4827469 100644
--- a/sound/pci/ctxfi/cthw20k2.c
+++ b/sound/pci/ctxfi/cthw20k2.c
@@ -26,7 +26,11 @@
 #include <linux/interrupt.h>
 #include <linux/delay.h>
 
-#define CT_XFI_DMA_MASK		DMA_BIT_MASK(32) /* 32 bits */
+#if BITS_PER_LONG == 32
+#define CT_XFI_DMA_MASK		DMA_BIT_MASK(32) /* 32 bit PTE */
+#else
+#define CT_XFI_DMA_MASK		DMA_BIT_MASK(64) /* 64 bit PTE */
+#endif
 
 static u32 hw_read_20kx(struct hw *hw, u32 reg);
 static void hw_write_20kx(struct hw *hw, u32 reg, u32 data);
@@ -1834,18 +1838,16 @@ static int hw_card_start(struct hw *hw)
 	int err = 0;
 	struct pci_dev *pci = hw->pci;
 	unsigned int gctl;
-	unsigned int dma_mask = 0;
 
 	err = pci_enable_device(pci);
 	if (err < 0)
 		return err;
 
 	/* Set DMA transfer mask */
-	dma_mask = CT_XFI_DMA_MASK;
-	if (pci_set_dma_mask(pci, dma_mask) < 0 ||
-	    pci_set_consistent_dma_mask(pci, dma_mask) < 0) {
+	if (pci_set_dma_mask(pci, CT_XFI_DMA_MASK) < 0 ||
+	    pci_set_consistent_dma_mask(pci, CT_XFI_DMA_MASK) < 0) {
 		printk(KERN_ERR "ctxfi: architecture does not support PCI "
-		"busmaster DMA with mask 0x%x\n", dma_mask);
+		"busmaster DMA with mask 0x%llx\n", CT_XFI_DMA_MASK);
 		err = -ENXIO;
 		goto error1;
 	}