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drm/i915: Allocate the PCI resource for the MCHBAR

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We were failing when trying to allocate the resource for MMIO of the
MCHBAR because we forgot to specify what type of resource we wanted.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: stable@kernel.org
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Chris Wilson 2010-08-20 14:36:45 +01:00
parent 4f7f7b7eb9
commit a25c25c2a2
1 changed files with 10 additions and 10 deletions
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20
drivers/gpu/drm/i915/i915_dma.c
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@ -891,7 +891,7 @@ intel_alloc_mchbar_resource(struct drm_device *dev)
int reg = IS_I965G(dev) ? MCHBAR_I965 : MCHBAR_I915;
u32 temp_lo, temp_hi = 0;
u64 mchbar_addr;
int ret = 0;
int ret;
if (IS_I965G(dev))
pci_read_config_dword(dev_priv->bridge_dev, reg + 4, &temp_hi);
@ -901,22 +901,23 @@ intel_alloc_mchbar_resource(struct drm_device *dev)
/* If ACPI doesn't have it, assume we need to allocate it ourselves */
#ifdef CONFIG_PNP
if (mchbar_addr &&
pnp_range_reserved(mchbar_addr, mchbar_addr + MCHBAR_SIZE)) {
ret = 0;
goto out;
}
pnp_range_reserved(mchbar_addr, mchbar_addr + MCHBAR_SIZE))
return 0;
#endif
/* Get some space for it */
ret = pci_bus_alloc_resource(dev_priv->bridge_dev->bus, &dev_priv->mch_res,
dev_priv->mch_res.name = "i915 MCHBAR";
dev_priv->mch_res.flags = IORESOURCE_MEM;
ret = pci_bus_alloc_resource(dev_priv->bridge_dev->bus,
&dev_priv->mch_res,
MCHBAR_SIZE, MCHBAR_SIZE,
PCIBIOS_MIN_MEM,
0, pcibios_align_resource,
0, pcibios_align_resource,
dev_priv->bridge_dev);
if (ret) {
DRM_DEBUG_DRIVER("failed bus alloc: %d\n", ret);
dev_priv->mch_res.start = 0;
goto out;
return ret;
}
if (IS_I965G(dev))
@ -925,8 +926,7 @@ intel_alloc_mchbar_resource(struct drm_device *dev)
pci_write_config_dword(dev_priv->bridge_dev, reg,
lower_32_bits(dev_priv->mch_res.start));
out:
return ret;
return 0;
}
/* Setup MCHBAR if possible, return true if we should disable it again */