[S390] 3270 console: convert from bootmem to slab

The slab allocator is earlier available so convert the
bootmem allocations to slab/gfp allocations.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

drivers/s390/char/con3270.c

@@ -7,7 +7,6 @@
  *     Copyright IBM Corp. 2003, 2009
  */
 
-#include <linux/bootmem.h>
 #include <linux/console.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
@@ -600,16 +599,14 @@ con3270_init(void)
 	if (IS_ERR(rp))
 		return PTR_ERR(rp);
 
-	condev = (struct con3270 *) alloc_bootmem_low(sizeof(struct con3270));
-	memset(condev, 0, sizeof(struct con3270));
+	condev = kzalloc(sizeof(struct con3270), GFP_KERNEL | GFP_DMA);
 	condev->view.dev = rp;
 
-	condev->read = raw3270_request_alloc_bootmem(0);
+	condev->read = raw3270_request_alloc(0);
 	condev->read->callback = con3270_read_callback;
 	condev->read->callback_data = condev;
-	condev->write = 
-		raw3270_request_alloc_bootmem(CON3270_OUTPUT_BUFFER_SIZE);
-	condev->kreset = raw3270_request_alloc_bootmem(1);
+	condev->write = raw3270_request_alloc(CON3270_OUTPUT_BUFFER_SIZE);
+	condev->kreset = raw3270_request_alloc(1);
 
 	INIT_LIST_HEAD(&condev->lines);
 	INIT_LIST_HEAD(&condev->update);
@@ -623,7 +620,7 @@ con3270_init(void)
 
 	INIT_LIST_HEAD(&condev->freemem);
 	for (i = 0; i < CON3270_STRING_PAGES; i++) {
-		cbuf = (void *) alloc_bootmem_low_pages(PAGE_SIZE);
+		cbuf = (void *) get_zeroed_page(GFP_KERNEL | GFP_DMA);
 		add_string_memory(&condev->freemem, cbuf, PAGE_SIZE);
 	}
 	condev->cline = alloc_string(&condev->freemem, condev->view.cols);

drivers/s390/char/raw3270.c

@@ -7,7 +7,6 @@
  *     Copyright IBM Corp. 2003, 2009
  */
 
-#include <linux/bootmem.h>
 #include <linux/module.h>
 #include <linux/err.h>
 #include <linux/init.h>
@@ -143,33 +142,6 @@ raw3270_request_alloc(size_t size)
 	return rq;
 }
 
-#ifdef CONFIG_TN3270_CONSOLE
-/*
- * Allocate a new 3270 ccw request from bootmem. Only works very
- * early in the boot process. Only con3270.c should be using this.
- */
-struct raw3270_request __init *raw3270_request_alloc_bootmem(size_t size)
-{
-	struct raw3270_request *rq;
-
-	rq = alloc_bootmem_low(sizeof(struct raw3270));
-
-	/* alloc output buffer. */
-	if (size > 0)
-		rq->buffer = alloc_bootmem_low(size);
-	rq->size = size;
-	INIT_LIST_HEAD(&rq->list);
-
-	/*
-	 * Setup ccw.
-	 */
-	rq->ccw.cda = __pa(rq->buffer);
-	rq->ccw.flags = CCW_FLAG_SLI;
-
-	return rq;
-}
-#endif
-
 /*
  * Free 3270 ccw request
  */
@@ -846,8 +818,8 @@ struct raw3270 __init *raw3270_setup_console(struct ccw_device *cdev)
 	char *ascebc;
 	int rc;
 
-	rp = (struct raw3270 *) alloc_bootmem_low(sizeof(struct raw3270));
-	ascebc = (char *) alloc_bootmem(256);
+	rp = kzalloc(sizeof(struct raw3270), GFP_KERNEL | GFP_DMA);
+	ascebc = kzalloc(256, GFP_KERNEL);
 	rc = raw3270_setup_device(cdev, rp, ascebc);
 	if (rc)
 		return ERR_PTR(rc);