Reimplemented _kernel_contigmalloc() to support the physical address

restrictions.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37221 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/libs/compat/freebsd_network/Jamfile

@@ -17,6 +17,7 @@ KernelStaticLibrary libfreebsd_network.a :
 	callout.c
 	clock.c
 	compat.c
+	compat_cpp.cpp
 	condvar.c
 	Condvar.cpp
 	device.c

src/libs/compat/freebsd_network/compat.c

@@ -22,6 +22,8 @@
 
 #include <compat/dev/mii/miivar.h>
 
+#include "compat_cpp.h"
+
 
 spinlock __haiku_intr_spinlock;
 
@@ -587,24 +589,8 @@ _kernel_contigmalloc(const char *file, int line, size_t size, int flags,
 	vm_paddr_t low, vm_paddr_t high, unsigned long alignment,
 	unsigned long boundary)
 {
-	char name[256];
-	area_id area;
-	void *addr;
-
-	snprintf(name, sizeof(name), "contig:%s:%d", file, line);
-
-	area = create_area(name, &addr, B_ANY_KERNEL_ADDRESS, size,
-		B_FULL_LOCK | B_CONTIGUOUS, B_READ_AREA | B_WRITE_AREA);
-	if (area < 0)
-		return NULL;
-
-	if (flags & M_ZERO)
-		memset(addr, 0, size);
-
-	//driver_printf("(%s) addr = %p, area = %ld, size = %lu\n",
-	//	name, addr, area, size);
-
-	return addr;
+	return _kernel_contigmalloc_cpp(file, line, size, low, high,
+		alignment, boundary, (flags & M_ZERO) != 0, (flags & M_NOWAIT) != 0);
 }
 
 

src/libs/compat/freebsd_network/compat_cpp.cpp

@@ -0,0 +1,46 @@
+/*
+ * Copyright 2010, Ingo Weinhold, ingo_weinhold@gmx.de.
+ * Distributed under the terms of the MIT License.
+ */
+
+
+#include "compat_cpp.h"
+
+#include <stdio.h>
+#include <string.h>
+
+#include <kernel/vm/vm.h>
+
+
+void*
+_kernel_contigmalloc_cpp(const char* file, int line, size_t size,
+	phys_addr_t low, phys_addr_t high, phys_size_t alignment,
+	phys_size_t boundary, bool zero, bool dontWait)
+{
+	size = ROUNDUP(size, B_PAGE_SIZE);
+
+	uint32 creationFlags = (zero ? 0 : CREATE_AREA_DONT_CLEAR)
+		| (dontWait ? CREATE_AREA_DONT_WAIT : 0);
+
+	char name[B_OS_NAME_LENGTH];
+	const char* baseName = strrchr(file, '/');
+	baseName = baseName != NULL ? baseName + 1 : file;
+	snprintf(name, sizeof(name), "contig:%s:%d", baseName, line);
+
+	virtual_address_restrictions virtualRestrictions = {};
+
+	physical_address_restrictions physicalRestrictions = {};
+	physicalRestrictions.low_address = low;
+	physicalRestrictions.high_address = high;
+	physicalRestrictions.alignment = alignment;
+	physicalRestrictions.boundary = boundary;
+
+	void* address;
+	area_id area = create_area_etc(B_SYSTEM_TEAM, name, size, B_CONTIGUOUS,
+		B_KERNEL_READ_AREA | B_KERNEL_WRITE_AREA, creationFlags,
+		&virtualRestrictions, &physicalRestrictions, &address);
+	if (area < 0)
+		return NULL;
+
+	return address;
+}

src/libs/compat/freebsd_network/compat_cpp.h

@@ -0,0 +1,27 @@
+/*
+ * Copyright 2010, Ingo Weinhold, ingo_weinhold@gmx.de.
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef _FREE_BSD_NETWORK_COMPAT_CPP_H
+#define _FREE_BSD_NETWORK_COMPAT_CPP_H
+
+
+#include <SupportDefs.h>
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+void*	_kernel_contigmalloc_cpp(const char* file, int line, size_t size,
+			phys_addr_t low, phys_addr_t high, phys_size_t alignment,
+			phys_size_t boundary, bool zero, bool dontWait);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* _FREE_BSD_NETWORK_COMPAT_CPP_H */