Ticket #9074: 0002-Fix-3079-and-9074-Memory-alocation-beyond-256MB.patch

src/add-ons/kernel/drivers/audio/ice1712/Jamfile

@@ -2 +2 @@
 
 SetSubDirSupportedPlatformsBeOSCompatible ;
 
+UsePrivateKernelHeaders ;
 UsePrivateHeaders media ;
 
 KernelAddon ice1712 :

src/add-ons/kernel/drivers/audio/ice1712/util.cpp

@@ -12 +12 @@
 #include <OS.h>
 #include <string.h>
 
+#include <vm/vm.h>
+#include <vm/VMAddressSpace.h>
+
 #include "debug.h"
 #include "util.h"
 
 static spinlock slock = B_SPINLOCK_INITIALIZER;
-static uint32 round_to_pagesize(uint32 size);
 
 cpu_status
 lock(void)
@@ -35 +37 @@
 }
 
 
-uint32
-round_to_pagesize(uint32 size)
-{
-    return (size + B_PAGE_SIZE - 1) & ~(B_PAGE_SIZE - 1);
-}
-
-
 area_id
 alloc_mem(physical_entry *phy, addr_t *log, size_t size, const char *name)
 {
     void * logadr;
     area_id areaid;
     status_t rv;
+    team_id teamid = VMAddressSpace::KernelID();
+    virtual_address_restrictions virtual_add = {};
+    physical_address_restrictions phys_add = {};
+    phys_add.high_address = 1 << 28;
+    // ICE1712 chipset can not deal with memory area beyond 256MB
 
     ITRACE("Allocating %s: ", name);
 
-    size = round_to_pagesize(size);
-    areaid = create_area(name, &logadr, B_ANY_KERNEL_ADDRESS, size,
-        B_32_BIT_CONTIGUOUS, B_READ_AREA | B_WRITE_AREA);
-        // TODO: The rest of the code doesn't deal correctly with physical
-        // addresses > 4 GB, so we have to force 32 bit addresses here.
+    areaid = vm_create_anonymous_area(teamid, name, size, B_CONTIGUOUS,
+        B_READ_AREA | B_WRITE_AREA, 0, B_PAGE_SIZE,
+        &virtual_add, &phys_add, true, &logadr);
+
     if (areaid < B_OK) {
         ITRACE("couldn't allocate\n");
         return B_ERROR;