Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgart
diff --git a/drivers/char/agp/backend.c b/drivers/char/agp/backend.c
index 73f333f..4d5ed18 100644
--- a/drivers/char/agp/backend.c
+++ b/drivers/char/agp/backend.c
@@ -147,6 +147,7 @@
printk(KERN_ERR PFX "unable to get memory for scratch page.\n");
return -ENOMEM;
}
+ global_flush_tlb();
bridge->scratch_page_real = virt_to_gart(addr);
bridge->scratch_page =
@@ -187,9 +188,11 @@
return 0;
err_out:
- if (bridge->driver->needs_scratch_page)
+ if (bridge->driver->needs_scratch_page) {
bridge->driver->agp_destroy_page(
gart_to_virt(bridge->scratch_page_real));
+ global_flush_tlb();
+ }
if (got_gatt)
bridge->driver->free_gatt_table(bridge);
if (got_keylist) {
@@ -211,9 +214,11 @@
bridge->key_list = NULL;
if (bridge->driver->agp_destroy_page &&
- bridge->driver->needs_scratch_page)
+ bridge->driver->needs_scratch_page) {
bridge->driver->agp_destroy_page(
gart_to_virt(bridge->scratch_page_real));
+ global_flush_tlb();
+ }
}
/* When we remove the global variable agp_bridge from all drivers
diff --git a/drivers/char/agp/generic.c b/drivers/char/agp/generic.c
index c4a3871..19f242b 100644
--- a/drivers/char/agp/generic.c
+++ b/drivers/char/agp/generic.c
@@ -57,7 +57,8 @@
{
int i;
i = change_page_attr(page, 1, PAGE_KERNEL_NOCACHE);
- global_flush_tlb();
+ /* Caller's responsibility to call global_flush_tlb() for
+ * performance reasons */
return i;
}
EXPORT_SYMBOL_GPL(map_page_into_agp);
@@ -66,7 +67,8 @@
{
int i;
i = change_page_attr(page, 1, PAGE_KERNEL);
- global_flush_tlb();
+ /* Caller's responsibility to call global_flush_tlb() for
+ * performance reasons */
return i;
}
EXPORT_SYMBOL_GPL(unmap_page_from_agp);
@@ -153,6 +155,7 @@
for (i = 0; i < curr->page_count; i++) {
curr->bridge->driver->agp_destroy_page(gart_to_virt(curr->memory[i]));
}
+ global_flush_tlb();
}
agp_free_key(curr->key);
vfree(curr->memory);
@@ -210,7 +213,9 @@
new->memory[i] = virt_to_gart(addr);
new->page_count++;
}
- new->bridge = bridge;
+ global_flush_tlb();
+
+ new->bridge = bridge;
flush_agp_mappings();
diff --git a/drivers/char/agp/i460-agp.c b/drivers/char/agp/i460-agp.c
index 58944cd..34a4446 100644
--- a/drivers/char/agp/i460-agp.c
+++ b/drivers/char/agp/i460-agp.c
@@ -111,8 +111,10 @@
if (i460.io_page_shift != I460_IO_PAGE_SHIFT) {
printk(KERN_ERR PFX
- "I/O (GART) page-size %ZuKB doesn't match expected size %ZuKB\n",
- 1UL << (i460.io_page_shift - 10), 1UL << (I460_IO_PAGE_SHIFT));
+ "I/O (GART) page-size %luKB doesn't match expected "
+ "size %luKB\n",
+ 1UL << (i460.io_page_shift - 10),
+ 1UL << (I460_IO_PAGE_SHIFT));
return 0;
}
@@ -514,9 +516,10 @@
{
void *page;
- if (I460_IO_PAGE_SHIFT <= PAGE_SHIFT)
+ if (I460_IO_PAGE_SHIFT <= PAGE_SHIFT) {
page = agp_generic_alloc_page(agp_bridge);
- else
+ global_flush_tlb();
+ } else
/* Returning NULL would cause problems */
/* AK: really dubious code. */
page = (void *)~0UL;
@@ -525,8 +528,10 @@
static void i460_destroy_page (void *page)
{
- if (I460_IO_PAGE_SHIFT <= PAGE_SHIFT)
+ if (I460_IO_PAGE_SHIFT <= PAGE_SHIFT) {
agp_generic_destroy_page(page);
+ global_flush_tlb();
+ }
}
#endif /* I460_LARGE_IO_PAGES */
@@ -536,7 +541,7 @@
{
/* Make sure the returned address is a valid GATT entry */
return bridge->driver->masks[0].mask
- | (((addr & ~((1 << I460_IO_PAGE_SHIFT) - 1)) & 0xffffff000) >> 12);
+ | (((addr & ~((1 << I460_IO_PAGE_SHIFT) - 1)) & 0xfffff000) >> 12);
}
struct agp_bridge_driver intel_i460_driver = {
diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index bf4cc9f..027161a 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -270,6 +270,7 @@
switch (pg_count) {
case 1: addr = agp_bridge->driver->agp_alloc_page(agp_bridge);
+ global_flush_tlb();
break;
case 4:
/* kludge to get 4 physical pages for ARGB cursor */
@@ -330,9 +331,11 @@
if(curr->type == AGP_PHYS_MEMORY) {
if (curr->page_count == 4)
i8xx_destroy_pages(gart_to_virt(curr->memory[0]));
- else
+ else {
agp_bridge->driver->agp_destroy_page(
gart_to_virt(curr->memory[0]));
+ global_flush_tlb();
+ }
vfree(curr->memory);
}
kfree(curr);
