forked from Minki/linux
intel-gtt: switch i81x to the write_entry helpers
Initialization is still done with the old code with a few added things sprinkled in to make the intel_fake_agp helper functions work. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Daniel Vetter
Chris Wilson
parent
24a6b387af
commit
625dd9d331
@ -101,6 +101,9 @@ static struct _intel_private {
|
||||
dma_addr_t scratch_page_dma;
|
||||
} intel_private;
|
||||
|
||||
static int intel_fake_agp_insert_entries(struct agp_memory *mem,
|
||||
off_t pg_start, int type);
|
||||
|
||||
#define INTEL_GTT_GEN intel_private.driver->gen
|
||||
#define IS_G33 intel_private.driver->is_g33
|
||||
#define IS_PINEVIEW intel_private.driver->is_pineview
|
||||
@ -176,10 +179,12 @@ static int intel_i810_fetch_size(void)
|
||||
if ((smram_miscc & I810_GFX_MEM_WIN_SIZE) == I810_GFX_MEM_WIN_32M) {
|
||||
agp_bridge->current_size = (void *) (values + 1);
|
||||
agp_bridge->aperture_size_idx = 1;
|
||||
intel_private.base.gtt_total_entries = KB(32) / 4;
|
||||
return values[1].size;
|
||||
} else {
|
||||
agp_bridge->current_size = (void *) (values);
|
||||
agp_bridge->aperture_size_idx = 0;
|
||||
intel_private.base.gtt_total_entries = KB(64) / 4;
|
||||
return values[0].size;
|
||||
}
|
||||
|
||||
@ -206,6 +211,9 @@ static int intel_i810_configure(void)
|
||||
}
|
||||
}
|
||||
|
||||
intel_private.gtt = intel_private.registers + I810_PTE_BASE;
|
||||
intel_private.scratch_page_dma = agp_bridge->scratch_page & PAGE_MASK;
|
||||
|
||||
if ((readl(intel_private.registers+I810_DRAM_CTL)
|
||||
& I810_DRAM_ROW_0) == I810_DRAM_ROW_0_SDRAM) {
|
||||
/* This will need to be dynamically assigned */
|
||||
@ -272,80 +280,28 @@ static void i8xx_destroy_pages(struct page *page)
|
||||
|
||||
static int intel_i810_insert_entries(struct agp_memory *mem, off_t pg_start,
|
||||
int type)
|
||||
{
|
||||
int i, j, num_entries;
|
||||
void *temp;
|
||||
int ret = -EINVAL;
|
||||
int mask_type;
|
||||
|
||||
if (mem->page_count == 0)
|
||||
goto out;
|
||||
|
||||
temp = agp_bridge->current_size;
|
||||
num_entries = A_SIZE_FIX(temp)->num_entries;
|
||||
|
||||
if ((pg_start + mem->page_count) > num_entries)
|
||||
goto out_err;
|
||||
|
||||
|
||||
for (j = pg_start; j < (pg_start + mem->page_count); j++) {
|
||||
if (!PGE_EMPTY(agp_bridge, readl(agp_bridge->gatt_table+j))) {
|
||||
ret = -EBUSY;
|
||||
goto out_err;
|
||||
}
|
||||
}
|
||||
|
||||
if (type != mem->type)
|
||||
goto out_err;
|
||||
|
||||
mask_type = agp_bridge->driver->agp_type_to_mask_type(agp_bridge, type);
|
||||
|
||||
switch (mask_type) {
|
||||
case AGP_DCACHE_MEMORY:
|
||||
if (!mem->is_flushed)
|
||||
global_cache_flush();
|
||||
for (i = pg_start; i < (pg_start + mem->page_count); i++) {
|
||||
writel((i*4096)|I810_PTE_LOCAL|I810_PTE_VALID,
|
||||
intel_private.registers+I810_PTE_BASE+(i*4));
|
||||
}
|
||||
readl(intel_private.registers+I810_PTE_BASE+((i-1)*4));
|
||||
break;
|
||||
case AGP_PHYS_MEMORY:
|
||||
case AGP_NORMAL_MEMORY:
|
||||
if (!mem->is_flushed)
|
||||
global_cache_flush();
|
||||
for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {
|
||||
writel(agp_bridge->driver->mask_memory(agp_bridge,
|
||||
page_to_phys(mem->pages[i]), mask_type),
|
||||
intel_private.registers+I810_PTE_BASE+(j*4));
|
||||
}
|
||||
readl(intel_private.registers+I810_PTE_BASE+((j-1)*4));
|
||||
break;
|
||||
default:
|
||||
goto out_err;
|
||||
}
|
||||
|
||||
out:
|
||||
ret = 0;
|
||||
out_err:
|
||||
mem->is_flushed = true;
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int intel_i810_remove_entries(struct agp_memory *mem, off_t pg_start,
|
||||
int type)
|
||||
{
|
||||
int i;
|
||||
|
||||
if (mem->page_count == 0)
|
||||
if (type == AGP_DCACHE_MEMORY) {
|
||||
if ((pg_start + mem->page_count)
|
||||
> intel_private.num_dcache_entries)
|
||||
return -EINVAL;
|
||||
|
||||
if (!mem->is_flushed)
|
||||
global_cache_flush();
|
||||
|
||||
for (i = pg_start; i < (pg_start + mem->page_count); i++) {
|
||||
dma_addr_t addr = i << PAGE_SHIFT;
|
||||
intel_private.driver->write_entry(addr,
|
||||
i, type);
|
||||
}
|
||||
readl(intel_private.gtt+i-1);
|
||||
|
||||
return 0;
|
||||
|
||||
for (i = pg_start; i < (mem->page_count + pg_start); i++) {
|
||||
writel(agp_bridge->scratch_page, intel_private.registers+I810_PTE_BASE+(i*4));
|
||||
}
|
||||
readl(intel_private.registers+I810_PTE_BASE+((i-1)*4));
|
||||
|
||||
return 0;
|
||||
return intel_fake_agp_insert_entries(mem, pg_start, type);
|
||||
}
|
||||
|
||||
/*
|
||||
@ -390,29 +346,6 @@ static struct agp_memory *alloc_agpphysmem_i8xx(size_t pg_count, int type)
|
||||
return new;
|
||||
}
|
||||
|
||||
static struct agp_memory *intel_i810_alloc_by_type(size_t pg_count, int type)
|
||||
{
|
||||
struct agp_memory *new;
|
||||
|
||||
if (type == AGP_DCACHE_MEMORY) {
|
||||
if (pg_count != intel_private.num_dcache_entries)
|
||||
return NULL;
|
||||
|
||||
new = agp_create_memory(1);
|
||||
if (new == NULL)
|
||||
return NULL;
|
||||
|
||||
new->type = AGP_DCACHE_MEMORY;
|
||||
new->page_count = pg_count;
|
||||
new->num_scratch_pages = 0;
|
||||
agp_free_page_array(new);
|
||||
return new;
|
||||
}
|
||||
if (type == AGP_PHYS_MEMORY)
|
||||
return alloc_agpphysmem_i8xx(pg_count, type);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static void intel_i810_free_by_type(struct agp_memory *curr)
|
||||
{
|
||||
agp_free_key(curr->key);
|
||||
@ -463,6 +396,23 @@ static int intel_gtt_setup_scratch_page(void)
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void i810_write_entry(dma_addr_t addr, unsigned int entry,
|
||||
unsigned int flags)
|
||||
{
|
||||
u32 pte_flags = I810_PTE_VALID;
|
||||
|
||||
switch (flags) {
|
||||
case AGP_DCACHE_MEMORY:
|
||||
pte_flags |= I810_PTE_LOCAL;
|
||||
break;
|
||||
case AGP_USER_CACHED_MEMORY:
|
||||
pte_flags |= I830_PTE_SYSTEM_CACHED;
|
||||
break;
|
||||
}
|
||||
|
||||
writel(addr | pte_flags, intel_private.gtt + entry);
|
||||
}
|
||||
|
||||
static const struct aper_size_info_fixed const intel_fake_agp_sizes[] = {
|
||||
{128, 32768, 5},
|
||||
/* The 64M mode still requires a 128k gatt */
|
||||
@ -760,7 +710,7 @@ static void intel_gtt_cleanup(void)
|
||||
|
||||
iounmap(intel_private.gtt);
|
||||
iounmap(intel_private.registers);
|
||||
|
||||
|
||||
intel_gtt_teardown_scratch_page();
|
||||
}
|
||||
|
||||
@ -889,7 +839,7 @@ static void i830_write_entry(dma_addr_t addr, unsigned int entry,
|
||||
unsigned int flags)
|
||||
{
|
||||
u32 pte_flags = I810_PTE_VALID;
|
||||
|
||||
|
||||
if (flags == AGP_USER_CACHED_MEMORY)
|
||||
pte_flags |= I830_PTE_SYSTEM_CACHED;
|
||||
|
||||
@ -1106,6 +1056,22 @@ static void intel_fake_agp_chipset_flush(struct agp_bridge_data *bridge)
|
||||
static struct agp_memory *intel_fake_agp_alloc_by_type(size_t pg_count,
|
||||
int type)
|
||||
{
|
||||
struct agp_memory *new;
|
||||
|
||||
if (type == AGP_DCACHE_MEMORY && INTEL_GTT_GEN == 1) {
|
||||
if (pg_count != intel_private.num_dcache_entries)
|
||||
return NULL;
|
||||
|
||||
new = agp_create_memory(1);
|
||||
if (new == NULL)
|
||||
return NULL;
|
||||
|
||||
new->type = AGP_DCACHE_MEMORY;
|
||||
new->page_count = pg_count;
|
||||
new->num_scratch_pages = 0;
|
||||
agp_free_page_array(new);
|
||||
return new;
|
||||
}
|
||||
if (type == AGP_PHYS_MEMORY)
|
||||
return alloc_agpphysmem_i8xx(pg_count, type);
|
||||
/* always return NULL for other allocation types for now */
|
||||
@ -1316,8 +1282,8 @@ static const struct agp_bridge_driver intel_810_driver = {
|
||||
.create_gatt_table = agp_generic_create_gatt_table,
|
||||
.free_gatt_table = agp_generic_free_gatt_table,
|
||||
.insert_memory = intel_i810_insert_entries,
|
||||
.remove_memory = intel_i810_remove_entries,
|
||||
.alloc_by_type = intel_i810_alloc_by_type,
|
||||
.remove_memory = intel_fake_agp_remove_entries,
|
||||
.alloc_by_type = intel_fake_agp_alloc_by_type,
|
||||
.free_by_type = intel_i810_free_by_type,
|
||||
.agp_alloc_page = agp_generic_alloc_page,
|
||||
.agp_alloc_pages = agp_generic_alloc_pages,
|
||||
@ -1352,6 +1318,8 @@ static const struct agp_bridge_driver intel_fake_agp_driver = {
|
||||
static const struct intel_gtt_driver i81x_gtt_driver = {
|
||||
.gen = 1,
|
||||
.dma_mask_size = 32,
|
||||
.check_flags = i830_check_flags,
|
||||
.write_entry = i810_write_entry,
|
||||
};
|
||||
static const struct intel_gtt_driver i8xx_gtt_driver = {
|
||||
.gen = 2,
|
||||
@ -1369,7 +1337,7 @@ static const struct intel_gtt_driver i915_gtt_driver = {
|
||||
.setup = i9xx_setup,
|
||||
.cleanup = i9xx_cleanup,
|
||||
/* i945 is the last gpu to need phys mem (for overlay and cursors). */
|
||||
.write_entry = i830_write_entry,
|
||||
.write_entry = i830_write_entry,
|
||||
.dma_mask_size = 32,
|
||||
.check_flags = i830_check_flags,
|
||||
.chipset_flush = i9xx_chipset_flush,
|
||||
@ -1557,7 +1525,7 @@ int intel_gmch_probe(struct pci_dev *pdev,
|
||||
if (find_gmch(intel_gtt_chipsets[i].gmch_chip_id)) {
|
||||
bridge->driver =
|
||||
intel_gtt_chipsets[i].gmch_driver;
|
||||
intel_private.driver =
|
||||
intel_private.driver =
|
||||
intel_gtt_chipsets[i].gtt_driver;
|
||||
break;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user