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authorGeert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>2007-06-22 00:14:20 +1000
committerPaul Mackerras <paulus@samba.org>2007-06-28 19:18:08 +1000
commit32d7331852a07d1f94c6d1b817c7c45648aa0fe7 (patch)
treef9e7e2bae43e6dd18174029aa3d5019d21f0e7b9 /arch/powerpc/platforms/ps3/setup.c
parente4eb8cf0ae5e6e2d7531a3fc7088f7f638795ca6 (diff)
downloadlinux-linaro-stable-32d7331852a07d1f94c6d1b817c7c45648aa0fe7.tar.gz
[POWERPC] PS3: Preallocate bootmem memory for the PS3 FLASH ROM storage driver
Preallocate 256 KiB of bootmem memory for the PS3 FLASH ROM storage driver. This can be disabled by passing `ps3flash=off' on the kernel command line. Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/platforms/ps3/setup.c')
-rw-r--r--arch/powerpc/platforms/ps3/setup.c31
1 files changed, 30 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platforms/ps3/setup.c
index 6b6eca17472c..aa05288de64e 100644
--- a/arch/powerpc/platforms/ps3/setup.c
+++ b/arch/powerpc/platforms/ps3/setup.c
@@ -107,7 +107,8 @@ static void ps3_panic(char *str)
while(1);
}
-#if defined(CONFIG_FB_PS3) || defined(CONFIG_FB_PS3_MODULE)
+#if defined(CONFIG_FB_PS3) || defined(CONFIG_FB_PS3_MODULE) || \
+ defined(CONFIG_PS3_FLASH) || defined(CONFIG_PS3_FLASH_MODULE)
static void prealloc(struct ps3_prealloc *p)
{
if (!p->size)
@@ -123,7 +124,9 @@ static void prealloc(struct ps3_prealloc *p)
printk(KERN_INFO "%s: %lu bytes at %p\n", p->name, p->size,
p->address);
}
+#endif
+#if defined(CONFIG_FB_PS3) || defined(CONFIG_FB_PS3_MODULE)
struct ps3_prealloc ps3fb_videomemory = {
.name = "ps3fb videomemory",
.size = CONFIG_FB_PS3_DEFAULT_SIZE_M*1024*1024,
@@ -146,6 +149,30 @@ early_param("ps3fb", early_parse_ps3fb);
#define prealloc_ps3fb_videomemory() do { } while (0)
#endif
+#if defined(CONFIG_PS3_FLASH) || defined(CONFIG_PS3_FLASH_MODULE)
+struct ps3_prealloc ps3flash_bounce_buffer = {
+ .name = "ps3flash bounce buffer",
+ .size = 256*1024,
+ .align = 256*1024
+};
+EXPORT_SYMBOL_GPL(ps3flash_bounce_buffer);
+#define prealloc_ps3flash_bounce_buffer() prealloc(&ps3flash_bounce_buffer)
+
+static int __init early_parse_ps3flash(char *p)
+{
+ if (!p)
+ return 1;
+
+ if (!strcmp(p, "off"))
+ ps3flash_bounce_buffer.size = 0;
+
+ return 0;
+}
+early_param("ps3flash", early_parse_ps3flash);
+#else
+#define prealloc_ps3flash_bounce_buffer() do { } while (0)
+#endif
+
static int ps3_set_dabr(u64 dabr)
{
enum {DABR_USER = 1, DABR_KERNEL = 2,};
@@ -175,6 +202,8 @@ static void __init ps3_setup_arch(void)
#endif
prealloc_ps3fb_videomemory();
+ prealloc_ps3flash_bounce_buffer();
+
ppc_md.power_save = ps3_power_save;
DBG(" <- %s:%d\n", __func__, __LINE__);