diff options
Diffstat (limited to 'kernel/drivers/gpu/drm/i915/i915_gem_stolen.c')
| -rw-r--r-- | kernel/drivers/gpu/drm/i915/i915_gem_stolen.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/kernel/drivers/gpu/drm/i915/i915_gem_stolen.c b/kernel/drivers/gpu/drm/i915/i915_gem_stolen.c index 87e919a06..5d2323a40 100644 --- a/kernel/drivers/gpu/drm/i915/i915_gem_stolen.c +++ b/kernel/drivers/gpu/drm/i915/i915_gem_stolen.c @@ -108,17 +108,28 @@ static unsigned long i915_stolen_to_physical(struct drm_device *dev) pci_read_config_dword(dev->pdev, 0x5c, &base); base &= ~((1<<20) - 1); } else if (IS_I865G(dev)) { + u32 tseg_size = 0; u16 toud = 0; + u8 tmp; + + pci_bus_read_config_byte(dev->pdev->bus, PCI_DEVFN(0, 0), + I845_ESMRAMC, &tmp); + + if (tmp & TSEG_ENABLE) { + switch (tmp & I845_TSEG_SIZE_MASK) { + case I845_TSEG_SIZE_512K: + tseg_size = KB(512); + break; + case I845_TSEG_SIZE_1M: + tseg_size = MB(1); + break; + } + } - /* - * FIXME is the graphics stolen memory region - * always at TOUD? Ie. is it always the last - * one to be allocated by the BIOS? - */ pci_bus_read_config_word(dev->pdev->bus, PCI_DEVFN(0, 0), I865_TOUD, &toud); - base = toud << 16; + base = (toud << 16) + tseg_size; } else if (IS_I85X(dev)) { u32 tseg_size = 0; u32 tom; |