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agp/uninorth: Unify U3 and pre-U3 insert_memory and remove_memory hooks. 

Signed-off-by: Michel Dänzer <daenzer@vmware.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Michel Dänzer 2009-12-06 02:15:56 +00:00 committed by Benjamin Herrenschmidt
parent 3fc3a6b476
commit 37580f3f22
1 changed files with 11 additions and 53 deletions
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62
drivers/char/agp/uninorth-agp.c
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@ -144,53 +144,7 @@ static int uninorth_configure(void)
return 0;
}
static int uninorth_insert_memory(struct agp_memory *mem, off_t pg_start,
int type)
{
int i, j, num_entries;
void *temp;
int mask_type;
if (type != mem->type)
return -EINVAL;
mask_type = agp_bridge->driver->agp_type_to_mask_type(agp_bridge, type);
if (mask_type != 0) {
/* We know nothing of memory types */
return -EINVAL;
}
if (mem->page_count == 0)
return 0;
temp = agp_bridge->current_size;
num_entries = A_SIZE_32(temp)->num_entries;
if ((pg_start + mem->page_count) > num_entries)
return -EINVAL;
j = pg_start;
while (j < (pg_start + mem->page_count)) {
if (agp_bridge->gatt_table[j])
return -EBUSY;
j++;
}
for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {
agp_bridge->gatt_table[j] =
cpu_to_le32((page_to_phys(mem->pages[i]) & 0xFFFFF000UL) | 0x1UL);
flush_dcache_range((unsigned long)__va(page_to_phys(mem->pages[i])),
(unsigned long)__va(page_to_phys(mem->pages[i]))+0x1000);
}
(void)in_le32((volatile u32*)&agp_bridge->gatt_table[pg_start]);
mb();
uninorth_tlbflush(mem);
return 0;
}
static int u3_insert_memory(struct agp_memory *mem, off_t pg_start, int type)
static int uninorth_insert_memory(struct agp_memory *mem, off_t pg_start, int type)
{
int i, num_entries;
void *temp;
@ -219,14 +173,18 @@ static int u3_insert_memory(struct agp_memory *mem, off_t pg_start, int type)
for (i = 0; i < mem->page_count; ++i) {
if (gp[i]) {
dev_info(&agp_bridge->dev->dev,
"u3_insert_memory: entry 0x%x occupied (%x)\n",
"uninorth_insert_memory: entry 0x%x occupied (%x)\n",
i, gp[i]);
return -EBUSY;
}
}
for (i = 0; i < mem->page_count; i++) {
if (is_u3)
gp[i] = (page_to_phys(mem->pages[i]) >> PAGE_SHIFT) | 0x80000000UL;
else
gp[i] = cpu_to_le32((page_to_phys(mem->pages[i]) & 0xFFFFF000UL) |
0x1UL);
flush_dcache_range((unsigned long)__va(page_to_phys(mem->pages[i])),
(unsigned long)__va(page_to_phys(mem->pages[i]))+0x1000);
}
@ -236,7 +194,7 @@ static int u3_insert_memory(struct agp_memory *mem, off_t pg_start, int type)
return 0;
}
int u3_remove_memory(struct agp_memory *mem, off_t pg_start, int type)
int uninorth_remove_memory(struct agp_memory *mem, off_t pg_start, int type)
{
size_t i;
u32 *gp;
@ -551,7 +509,7 @@ const struct agp_bridge_driver uninorth_agp_driver = {
.create_gatt_table = uninorth_create_gatt_table,
.free_gatt_table = uninorth_free_gatt_table,
.insert_memory = uninorth_insert_memory,
.remove_memory = agp_generic_remove_memory,
.remove_memory = uninorth_remove_memory,
.alloc_by_type = agp_generic_alloc_by_type,
.free_by_type = agp_generic_free_by_type,
.agp_alloc_page = agp_generic_alloc_page,
@ -577,8 +535,8 @@ const struct agp_bridge_driver u3_agp_driver = {
.agp_enable = uninorth_agp_enable,
.create_gatt_table = uninorth_create_gatt_table,
.free_gatt_table = uninorth_free_gatt_table,
.insert_memory = u3_insert_memory,
.remove_memory = u3_remove_memory,
.insert_memory = uninorth_insert_memory,
.remove_memory = uninorth_remove_memory,
.alloc_by_type = agp_generic_alloc_by_type,
.free_by_type = agp_generic_free_by_type,
.agp_alloc_page = agp_generic_alloc_page,