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intel-gtt: consolidate the gtt ioremap calls 

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 2010-08-29 17:27:36 +02:00 коммит произвёл Chris Wilson
Родитель fdfb58a965
Коммит f67eab664c
1 изменённых файлов: 26 добавлений и 44 удалений
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70
drivers/char/agp/intel-gtt.c
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@ -94,6 +94,7 @@ static struct _intel_private {
struct pci_dev *pcidev; /* device one */
struct pci_dev *bridge_dev;
u8 __iomem *registers;
phys_addr_t gtt_bus_addr;
u32 __iomem *gtt; /* I915G */
int num_dcache_entries;
union {
@ -799,10 +800,27 @@ static unsigned int intel_gtt_mappable_entries(void)
static int intel_gtt_init(void)
{
u32 gtt_map_size;
intel_private.base.gtt_mappable_entries = intel_gtt_mappable_entries();
intel_private.base.gtt_total_entries = intel_gtt_total_entries();
gtt_map_size = intel_private.base.gtt_total_entries * 4;
intel_private.gtt = ioremap(intel_private.gtt_bus_addr,
gtt_map_size);
if (!intel_private.gtt) {
iounmap(intel_private.registers);
return -ENOMEM;
}
global_cache_flush(); /* FIXME: ? */
/* we have to call this as early as possible after the MMIO base address is known */
intel_private.base.gtt_stolen_entries = intel_gtt_stolen_entries();
if (intel_private.base.gtt_stolen_entries == 0) {
iounmap(intel_private.registers);
iounmap(intel_private.gtt);
return -ENOMEM;
}
@ -883,7 +901,6 @@ static int intel_i830_create_gatt_table(struct agp_bridge_data *bridge)
int page_order, ret;
struct aper_size_info_fixed *size;
int num_entries;
int gtt_map_size;
u32 temp;
size = agp_bridge->current_size;
@ -898,17 +915,8 @@ static int intel_i830_create_gatt_table(struct agp_bridge_data *bridge)
if (!intel_private.registers)
return -ENOMEM;
intel_private.base.gtt_total_entries = intel_gtt_total_entries();
gtt_map_size = intel_private.base.gtt_total_entries * 4;
intel_private.gtt = ioremap(temp + I810_PTE_BASE, gtt_map_size);
if (!intel_private.gtt) {
iounmap(intel_private.registers);
return -ENOMEM;
}
intel_private.gtt_bus_addr = temp + I810_PTE_BASE;
temp = readl(intel_private.registers+I810_PGETBL_CTL) & 0xfffff000;
global_cache_flush(); /* FIXME: ?? */
ret = intel_gtt_init();
if (ret != 0)
@ -1278,7 +1286,6 @@ static int intel_i915_create_gatt_table(struct agp_bridge_data *bridge)
struct aper_size_info_fixed *size;
int num_entries;
u32 temp, temp2;
int gtt_map_size;
size = agp_bridge->current_size;
page_order = size->page_order;
@ -1294,23 +1301,12 @@ static int intel_i915_create_gatt_table(struct agp_bridge_data *bridge)
if (!intel_private.registers)
return -ENOMEM;
intel_private.base.gtt_total_entries = intel_gtt_total_entries();
gtt_map_size = intel_private.base.gtt_total_entries * 4;
intel_private.gtt = ioremap(temp2, gtt_map_size);
if (!intel_private.gtt) {
iounmap(intel_private.registers);
return -ENOMEM;
}
intel_private.gtt_bus_addr = temp2;
temp = readl(intel_private.registers+I810_PGETBL_CTL) & 0xfffff000;
global_cache_flush(); /* FIXME: ? */
ret = intel_gtt_init();
if (ret != 0) {
iounmap(intel_private.gtt);
if (ret != 0)
return ret;
}
agp_bridge->gatt_table = NULL;
@ -1348,7 +1344,7 @@ static unsigned long intel_gen6_mask_memory(struct agp_bridge_data *bridge,
return addr | bridge->driver->masks[type].mask;
}
static void intel_i965_get_gtt_range(int *gtt_offset, int *gtt_size)
static void intel_i965_get_gtt_range(int *gtt_offset)
{
switch (INTEL_GTT_GEN) {
case 5:
@ -1360,8 +1356,6 @@ static void intel_i965_get_gtt_range(int *gtt_offset, int *gtt_size)
*gtt_offset = KB(512);
break;
}
*gtt_size = intel_private.base.gtt_total_entries * 4;
}
/* The intel i965 automatically initializes the agp aperture during POST.
@ -1373,7 +1367,7 @@ static int intel_i965_create_gatt_table(struct agp_bridge_data *bridge)
struct aper_size_info_fixed *size;
int num_entries;
u32 temp;
int gtt_offset, gtt_size;
int gtt_offset;
size = agp_bridge->current_size;
page_order = size->page_order;
@ -1388,25 +1382,13 @@ static int intel_i965_create_gatt_table(struct agp_bridge_data *bridge)
if (!intel_private.registers)
return -ENOMEM;
intel_private.base.gtt_total_entries = intel_gtt_total_entries();
intel_i965_get_gtt_range(&gtt_offset, &gtt_size);
intel_private.gtt = ioremap((temp + gtt_offset) , gtt_size);
if (!intel_private.gtt) {
iounmap(intel_private.gtt);
return -ENOMEM;
}
intel_i965_get_gtt_range(&gtt_offset);
intel_private.gtt_bus_addr = temp + gtt_offset;
temp = readl(intel_private.registers+I810_PGETBL_CTL) & 0xfffff000;
global_cache_flush(); /* FIXME: ? */
ret = intel_gtt_init();
if (ret != 0) {
iounmap(intel_private.gtt);
if (ret != 0)
return ret;
}
agp_bridge->gatt_table = NULL;