V4L/DVB (5774a): Remove CONFIG_BIGPHYS_AREA from zoran_driver

CONFIG_BIGPHYS_AREA is an out-of-tree kernel patch. It makes no sense to
keep supporting this on mainstream.

The out-of-tree compilation with CONFIG_BIGPHYS_AREA will still be
preserved at the v4l-dvb development tree at:
	http://linuxtv.org/hg/v4l-dvb

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

diff --git a/drivers/media/video/zoran_driver.c b/drivers/media/video/zoran_driver.c
index cf0ed6c..17118a4 100644 (file)
--- a/drivers/media/video/zoran_driver.c
+++ b/drivers/media/video/zoran_driver.c
@@ -183,14 +183,7 @@ static const int zoran_num_formats =
     (sizeof(zoran_formats) / sizeof(struct zoran_format));
 
 // RJ: Test only - want to test BUZ_USE_HIMEM even when CONFIG_BIGPHYS_AREA is defined
-#if !defined(CONFIG_BIGPHYS_AREA)
-//#undef CONFIG_BIGPHYS_AREA
-#define BUZ_USE_HIMEM
-#endif
 
-#if defined(CONFIG_BIGPHYS_AREA)
-#   include <linux/bigphysarea.h>
-#endif
 
 extern int *zr_debug;
 
@@ -250,7 +243,6 @@ static void jpg_fbuffer_free(struct file *file);
  *   Linux with the necessary memory left over).
  */
 
-#if defined(BUZ_USE_HIMEM) && !defined(CONFIG_BIGPHYS_AREA)
 static unsigned long
 get_high_mem (unsigned long size)
 {
@@ -314,7 +306,6 @@ get_high_mem (unsigned long size)
 
        return hi_mem_ph;
 }
-#endif
 
 static int
 v4l_fbuffer_alloc (struct file *file)
@@ -323,9 +314,7 @@ v4l_fbuffer_alloc (struct file *file)
        struct zoran *zr = fh->zr;
        int i, off;
        unsigned char *mem;
-#if defined(BUZ_USE_HIMEM) && !defined(CONFIG_BIGPHYS_AREA)
        unsigned long pmem = 0;
-#endif
 
        /* we might have old buffers lying around... */
        if (fh->v4l_buffers.ready_to_be_freed) {
@@ -369,39 +358,6 @@ v4l_fbuffer_alloc (struct file *file)
                                ZR_DEVNAME(zr), i, (unsigned long) mem,
                                virt_to_bus(mem));
                } else {
-#if defined(CONFIG_BIGPHYS_AREA)
-                       /* Use bigphysarea_alloc_pages */
-
-                       int n =
-                           (fh->v4l_buffers.buffer_size + PAGE_SIZE -
-                            1) / PAGE_SIZE;
-
-                       mem =
-                           (unsigned char *) bigphysarea_alloc_pages(n, 0,
-                                                                     GFP_KERNEL);
-                       if (mem == 0) {
-                               dprintk(1,
-                                       KERN_ERR
-                                       "%s: v4l_fbuffer_alloc() - bigphysarea_alloc_pages for V4L buf %d failed\n",
-                                       ZR_DEVNAME(zr), i);
-                               v4l_fbuffer_free(file);
-                               return -ENOBUFS;
-                       }
-                       fh->v4l_buffers.buffer[i].fbuffer = mem;
-                       fh->v4l_buffers.buffer[i].fbuffer_phys =
-                           virt_to_phys(mem);
-                       fh->v4l_buffers.buffer[i].fbuffer_bus =
-                           virt_to_bus(mem);
-                       dprintk(4,
-                               KERN_INFO
-                               "%s: Bigphysarea frame %d mem 0x%x (bus: 0x%x)\n",
-                               ZR_DEVNAME(zr), i, (unsigned) mem,
-                               (unsigned) virt_to_bus(mem));
-
-                       /* Zero out the allocated memory */
-                       memset(fh->v4l_buffers.buffer[i].fbuffer, 0,
-                              fh->v4l_buffers.buffer_size);
-#elif defined(BUZ_USE_HIMEM)
 
                        /* Use high memory which has been left at boot time */
 
@@ -441,20 +397,6 @@ v4l_fbuffer_alloc (struct file *file)
                                fh->v4l_buffers.buffer[i].fbuffer_bus =
                                    pmem + i * fh->v4l_buffers.buffer_size;
                        }
-#else
-                       /* No bigphysarea present, usage of high memory disabled,
-                        * but user wants buffers of more than MAX_KMALLOC_MEM */
-                       dprintk(1,
-                               KERN_ERR
-                               "%s: v4l_fbuffer_alloc() - no bigphysarea_patch present, usage of high memory disabled,\n",
-                               ZR_DEVNAME(zr));
-                       dprintk(1,
-                               KERN_ERR
-                               "%s: v4l_fbuffer_alloc() - sorry, could not allocate %d V4L buffers of size %d KB.\n",
-                               ZR_DEVNAME(zr), fh->v4l_buffers.num_buffers,
-                               fh->v4l_buffers.buffer_size >> 10);
-                       return -ENOBUFS;
-#endif
                }
        }
 
@@ -485,11 +427,6 @@ v4l_fbuffer_free (struct file *file)
                                ClearPageReserved(MAP_NR(mem + off));
                        kfree((void *) fh->v4l_buffers.buffer[i].fbuffer);
                }
-#if defined(CONFIG_BIGPHYS_AREA)
-               else
-                       bigphysarea_free_pages((void *) fh->v4l_buffers.
-                                              buffer[i].fbuffer);
-#endif
                fh->v4l_buffers.buffer[i].fbuffer = NULL;
        }