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yaml
---
r: 217962
b: refs/heads/master
c: ccc4e67
h: refs/heads/master
v: v3
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Daniel Vetter authored and Chris Wilson committed Sep 8, 2010
1 parent 9f38496 commit 195a859
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Showing 2 changed files with 9 additions and 51 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 1a997ff2a0089a07a5494545d31f4366742dea43
refs/heads/master: ccc4e67be5ac1bd38c4bfd61aca38366597e8afb
58 changes: 8 additions & 50 deletions trunk/drivers/char/agp/intel-gtt.c
Original file line number Diff line number Diff line change
Expand Up @@ -708,7 +708,6 @@ static unsigned int intel_gtt_stolen_entries(void)
return stolen_entries;
}

#if 0 /* extracted code in bad shape, needs some cleaning before use */
static unsigned int intel_gtt_total_entries(void)
{
int size;
Expand Down Expand Up @@ -750,7 +749,6 @@ static unsigned int intel_gtt_total_entries(void)
return intel_private.base.gtt_mappable_entries;
}
}
#endif

static unsigned int intel_gtt_mappable_entries(void)
{
Expand Down Expand Up @@ -1248,45 +1246,6 @@ static int intel_i915_remove_entries(struct agp_memory *mem, off_t pg_start,
return 0;
}

/* Return the aperture size by just checking the resource length. The effect
* described in the spec of the MSAC registers is just changing of the
* resource size.
*/
static int intel_i915_get_gtt_size(void)
{
int size;

if (IS_G33) {
u16 gmch_ctrl;

/* G33's GTT size defined in gmch_ctrl */
pci_read_config_word(intel_private.bridge_dev, I830_GMCH_CTRL, &gmch_ctrl);
switch (gmch_ctrl & I830_GMCH_GMS_MASK) {
case I830_GMCH_GMS_STOLEN_512:
size = 512;
break;
case I830_GMCH_GMS_STOLEN_1024:
size = 1024;
break;
case I830_GMCH_GMS_STOLEN_8192:
size = 8*1024;
break;
default:
dev_info(&intel_private.bridge_dev->dev,
"unknown page table size 0x%x, assuming 512KB\n",
(gmch_ctrl & I830_GMCH_GMS_MASK));
size = 512;
}
} else {
/* On previous hardware, the GTT size was just what was
* required to map the aperture.
*/
size = agp_bridge->driver->fetch_size();
}

return KB(size);
}

/* The intel i915 automatically initializes the agp aperture during POST.
* Use the memory already set aside for in the GTT.
*/
Expand All @@ -1306,19 +1265,18 @@ static int intel_i915_create_gatt_table(struct agp_bridge_data *bridge)
pci_read_config_dword(intel_private.pcidev, I915_MMADDR, &temp);
pci_read_config_dword(intel_private.pcidev, I915_PTEADDR, &temp2);

gtt_map_size = intel_i915_get_gtt_size();
temp &= 0xfff80000;

intel_private.gtt = ioremap(temp2, gtt_map_size);
if (!intel_private.gtt)
intel_private.registers = ioremap(temp, 128 * 4096);
if (!intel_private.registers)
return -ENOMEM;

intel_private.base.gtt_total_entries = gtt_map_size / 4;

temp &= 0xfff80000;
intel_private.base.gtt_total_entries = intel_gtt_total_entries();
gtt_map_size = intel_private.base.gtt_total_entries * 4;

intel_private.registers = ioremap(temp, 128 * 4096);
if (!intel_private.registers) {
iounmap(intel_private.gtt);
intel_private.gtt = ioremap(temp2, gtt_map_size);
if (!intel_private.gtt) {
iounmap(intel_private.registers);
return -ENOMEM;
}

Expand Down

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