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-rw-r--r--drivers/char/agp/uninorth-agp.c49
-rw-r--r--drivers/char/generic_nvram.c27
-rw-r--r--drivers/char/hvc_console.c2
-rw-r--r--drivers/char/hvc_vio.c4
-rw-r--r--drivers/char/hvsi.c3
5 files changed, 57 insertions, 28 deletions
diff --git a/drivers/char/agp/uninorth-agp.c b/drivers/char/agp/uninorth-agp.c
index 4317a5588da..20ef1bf5e72 100644
--- a/drivers/char/agp/uninorth-agp.c
+++ b/drivers/char/agp/uninorth-agp.c
@@ -7,6 +7,7 @@
#include <linux/pagemap.h>
#include <linux/agp_backend.h>
#include <linux/delay.h>
+#include <linux/vmalloc.h>
#include <asm/uninorth.h>
#include <asm/pci-bridge.h>
#include <asm/prom.h>
@@ -27,6 +28,8 @@
static int uninorth_rev;
static int is_u3;
+#define DEFAULT_APERTURE_SIZE 256
+#define DEFAULT_APERTURE_STRING "256"
static char *aperture = NULL;
static int uninorth_fetch_size(void)
@@ -55,7 +58,7 @@ static int uninorth_fetch_size(void)
if (!size) {
for (i = 0; i < agp_bridge->driver->num_aperture_sizes; i++)
- if (values[i].size == 32)
+ if (values[i].size == DEFAULT_APERTURE_SIZE)
break;
}
@@ -179,8 +182,6 @@ static int uninorth_insert_memory(struct agp_memory *mem, off_t pg_start,
}
(void)in_le32((volatile u32*)&agp_bridge->gatt_table[pg_start]);
mb();
- flush_dcache_range((unsigned long)&agp_bridge->gatt_table[pg_start],
- (unsigned long)&agp_bridge->gatt_table[pg_start + mem->page_count]);
uninorth_tlbflush(mem);
return 0;
@@ -224,7 +225,6 @@ static int u3_insert_memory(struct agp_memory *mem, off_t pg_start, int type)
(unsigned long)__va(page_to_phys(mem->pages[i]))+0x1000);
}
mb();
- flush_dcache_range((unsigned long)gp, (unsigned long) &gp[i]);
uninorth_tlbflush(mem);
return 0;
@@ -243,7 +243,6 @@ int u3_remove_memory(struct agp_memory *mem, off_t pg_start, int type)
for (i = 0; i < mem->page_count; ++i)
gp[i] = 0;
mb();
- flush_dcache_range((unsigned long)gp, (unsigned long) &gp[i]);
uninorth_tlbflush(mem);
return 0;
@@ -396,6 +395,7 @@ static int uninorth_create_gatt_table(struct agp_bridge_data *bridge)
int i;
void *temp;
struct page *page;
+ struct page **pages;
/* We can't handle 2 level gatt's */
if (bridge->driver->size_type == LVL2_APER_SIZE)
@@ -424,21 +424,39 @@ static int uninorth_create_gatt_table(struct agp_bridge_data *bridge)
if (table == NULL)
return -ENOMEM;
+ pages = kmalloc((1 << page_order) * sizeof(struct page*), GFP_KERNEL);
+ if (pages == NULL)
+ goto enomem;
+
table_end = table + ((PAGE_SIZE * (1 << page_order)) - 1);
- for (page = virt_to_page(table); page <= virt_to_page(table_end); page++)
+ for (page = virt_to_page(table), i = 0; page <= virt_to_page(table_end);
+ page++, i++) {
SetPageReserved(page);
+ pages[i] = page;
+ }
bridge->gatt_table_real = (u32 *) table;
- bridge->gatt_table = (u32 *)table;
+ /* Need to clear out any dirty data still sitting in caches */
+ flush_dcache_range((unsigned long)table,
+ (unsigned long)(table_end + PAGE_SIZE));
+ bridge->gatt_table = vmap(pages, (1 << page_order), 0, PAGE_KERNEL_NCG);
+
+ if (bridge->gatt_table == NULL)
+ goto enomem;
+
bridge->gatt_bus_addr = virt_to_phys(table);
for (i = 0; i < num_entries; i++)
bridge->gatt_table[i] = 0;
- flush_dcache_range((unsigned long)table, (unsigned long)table_end);
-
return 0;
+
+enomem:
+ kfree(pages);
+ if (table)
+ free_pages((unsigned long)table, page_order);
+ return -ENOMEM;
}
static int uninorth_free_gatt_table(struct agp_bridge_data *bridge)
@@ -456,6 +474,7 @@ static int uninorth_free_gatt_table(struct agp_bridge_data *bridge)
* from the table.
*/
+ vunmap(bridge->gatt_table);
table = (char *) bridge->gatt_table_real;
table_end = table + ((PAGE_SIZE * (1 << page_order)) - 1);
@@ -474,13 +493,11 @@ void null_cache_flush(void)
/* Setup function */
-static const struct aper_size_info_32 uninorth_sizes[7] =
+static const struct aper_size_info_32 uninorth_sizes[] =
{
-#if 0 /* Not sure uninorth supports that high aperture sizes */
{256, 65536, 6, 64},
{128, 32768, 5, 32},
{64, 16384, 4, 16},
-#endif
{32, 8192, 3, 8},
{16, 4096, 2, 4},
{8, 2048, 1, 2},
@@ -491,7 +508,7 @@ static const struct aper_size_info_32 uninorth_sizes[7] =
* Not sure that u3 supports that high aperture sizes but it
* would strange if it did not :)
*/
-static const struct aper_size_info_32 u3_sizes[8] =
+static const struct aper_size_info_32 u3_sizes[] =
{
{512, 131072, 7, 128},
{256, 65536, 6, 64},
@@ -507,7 +524,7 @@ const struct agp_bridge_driver uninorth_agp_driver = {
.owner = THIS_MODULE,
.aperture_sizes = (void *)uninorth_sizes,
.size_type = U32_APER_SIZE,
- .num_aperture_sizes = 4,
+ .num_aperture_sizes = ARRAY_SIZE(uninorth_sizes),
.configure = uninorth_configure,
.fetch_size = uninorth_fetch_size,
.cleanup = uninorth_cleanup,
@@ -534,7 +551,7 @@ const struct agp_bridge_driver u3_agp_driver = {
.owner = THIS_MODULE,
.aperture_sizes = (void *)u3_sizes,
.size_type = U32_APER_SIZE,
- .num_aperture_sizes = 8,
+ .num_aperture_sizes = ARRAY_SIZE(u3_sizes),
.configure = uninorth_configure,
.fetch_size = uninorth_fetch_size,
.cleanup = uninorth_cleanup,
@@ -717,7 +734,7 @@ module_param(aperture, charp, 0);
MODULE_PARM_DESC(aperture,
"Aperture size, must be power of two between 4MB and an\n"
"\t\tupper limit specific to the UniNorth revision.\n"
- "\t\tDefault: 32M");
+ "\t\tDefault: " DEFAULT_APERTURE_STRING "M");
MODULE_AUTHOR("Ben Herrenschmidt & Paul Mackerras");
MODULE_LICENSE("GPL");
diff --git a/drivers/char/generic_nvram.c b/drivers/char/generic_nvram.c
index a00869c650d..ef31738c2cb 100644
--- a/drivers/char/generic_nvram.c
+++ b/drivers/char/generic_nvram.c
@@ -2,7 +2,7 @@
* Generic /dev/nvram driver for architectures providing some
* "generic" hooks, that is :
*
- * nvram_read_byte, nvram_write_byte, nvram_sync
+ * nvram_read_byte, nvram_write_byte, nvram_sync, nvram_get_size
*
* Note that an additional hook is supported for PowerMac only
* for getting the nvram "partition" informations
@@ -28,6 +28,8 @@
#define NVRAM_SIZE 8192
+static ssize_t nvram_len;
+
static loff_t nvram_llseek(struct file *file, loff_t offset, int origin)
{
lock_kernel();
@@ -36,7 +38,7 @@ static loff_t nvram_llseek(struct file *file, loff_t offset, int origin)
offset += file->f_pos;
break;
case 2:
- offset += NVRAM_SIZE;
+ offset += nvram_len;
break;
}
if (offset < 0) {
@@ -56,9 +58,9 @@ static ssize_t read_nvram(struct file *file, char __user *buf,
if (!access_ok(VERIFY_WRITE, buf, count))
return -EFAULT;
- if (*ppos >= NVRAM_SIZE)
+ if (*ppos >= nvram_len)
return 0;
- for (i = *ppos; count > 0 && i < NVRAM_SIZE; ++i, ++p, --count)
+ for (i = *ppos; count > 0 && i < nvram_len; ++i, ++p, --count)
if (__put_user(nvram_read_byte(i), p))
return -EFAULT;
*ppos = i;
@@ -74,9 +76,9 @@ static ssize_t write_nvram(struct file *file, const char __user *buf,
if (!access_ok(VERIFY_READ, buf, count))
return -EFAULT;
- if (*ppos >= NVRAM_SIZE)
+ if (*ppos >= nvram_len)
return 0;
- for (i = *ppos; count > 0 && i < NVRAM_SIZE; ++i, ++p, --count) {
+ for (i = *ppos; count > 0 && i < nvram_len; ++i, ++p, --count) {
if (__get_user(c, p))
return -EFAULT;
nvram_write_byte(c, i);
@@ -133,9 +135,20 @@ static struct miscdevice nvram_dev = {
int __init nvram_init(void)
{
+ int ret = 0;
+
printk(KERN_INFO "Generic non-volatile memory driver v%s\n",
NVRAM_VERSION);
- return misc_register(&nvram_dev);
+ ret = misc_register(&nvram_dev);
+ if (ret != 0)
+ goto out;
+
+ nvram_len = nvram_get_size();
+ if (nvram_len < 0)
+ nvram_len = NVRAM_SIZE;
+
+out:
+ return ret;
}
void __exit nvram_cleanup(void)
diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c
index d97779ef72c..25ce15bb1c0 100644
--- a/drivers/char/hvc_console.c
+++ b/drivers/char/hvc_console.c
@@ -516,8 +516,6 @@ static void hvc_set_winsz(struct work_struct *work)
struct winsize ws;
hp = container_of(work, struct hvc_struct, tty_resize);
- if (!hp)
- return;
spin_lock_irqsave(&hp->lock, hvc_flags);
if (!hp->tty) {
diff --git a/drivers/char/hvc_vio.c b/drivers/char/hvc_vio.c
index c72b994652a..10be343d6ae 100644
--- a/drivers/char/hvc_vio.c
+++ b/drivers/char/hvc_vio.c
@@ -120,7 +120,7 @@ static struct vio_driver hvc_vio_driver = {
}
};
-static int hvc_vio_init(void)
+static int __init hvc_vio_init(void)
{
int rc;
@@ -134,7 +134,7 @@ static int hvc_vio_init(void)
}
module_init(hvc_vio_init); /* after drivers/char/hvc_console.c */
-static void hvc_vio_exit(void)
+static void __exit hvc_vio_exit(void)
{
vio_unregister_driver(&hvc_vio_driver);
}
diff --git a/drivers/char/hvsi.c b/drivers/char/hvsi.c
index 2989056a9e3..793b236c926 100644
--- a/drivers/char/hvsi.c
+++ b/drivers/char/hvsi.c
@@ -1230,11 +1230,12 @@ static struct tty_driver *hvsi_console_device(struct console *console,
static int __init hvsi_console_setup(struct console *console, char *options)
{
- struct hvsi_struct *hp = &hvsi_ports[console->index];
+ struct hvsi_struct *hp;
int ret;
if (console->index < 0 || console->index >= hvsi_count)
return -1;
+ hp = &hvsi_ports[console->index];
/* give the FSP a chance to change the baud rate when we re-open */
hvsi_close_protocol(hp);
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-04 05:05:14 +0000