ALSA: ctxfi - Remove PAGE_SIZE limitation

[pandora-kernel.git] / sound / pci / ctxfi / ctvmem.h

diff --git a/sound/pci/ctxfi/ctvmem.h b/sound/pci/ctxfi/ctvmem.h
index 618952e..17d2d37 100644 (file)
--- a/sound/pci/ctxfi/ctvmem.h
+++ b/sound/pci/ctxfi/ctvmem.h
@@ -23,6 +23,14 @@
 #include <linux/mutex.h>
 #include <linux/list.h>
 
+/* The chip can handle the page table of 4k pages
+ * (emu20k1 can handle even 8k pages, but we don't use it right now)
+ */
+#define CT_PAGE_SIZE   4096
+#define CT_PAGE_SHIFT  12
+#define CT_PAGE_MASK   (~(PAGE_SIZE - 1))
+#define CT_PAGE_ALIGN(addr)    ALIGN(addr, CT_PAGE_SIZE)
+
 struct ct_vm_block {
        unsigned int addr;      /* starting logical addr of this block */
        unsigned int size;      /* size of this device virtual mem block */