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author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-21 11:14:52 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-21 11:14:52 -0700 |
commit | 59534f7298c5e28aaa64e6ed550e247f64ee72ae (patch) | |
tree | b9fef7756abf897d9e1b10950cdf10bf6dfe5cb7 /drivers/gpu/drm/i915/i915_drv.c | |
parent | ac3ee84c604502240122c47b52f0542ec8774f15 (diff) | |
parent | b486787ee4797d6e42a9bd3a6f079385ad0f4472 (diff) | |
download | linux-stable-59534f7298c5e28aaa64e6ed550e247f64ee72ae.tar.gz linux-stable-59534f7298c5e28aaa64e6ed550e247f64ee72ae.tar.bz2 linux-stable-59534f7298c5e28aaa64e6ed550e247f64ee72ae.zip |
Merge branch 'drm-for-2.6.35' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-for-2.6.35' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (207 commits)
drm/radeon/kms/pm/r600: select the mid clock mode for single head low profile
drm/radeon: fix power supply kconfig interaction.
drm/radeon/kms: record object that have been list reserved
drm/radeon: AGP memory is only I/O if the aperture can be mapped by the CPU.
drm/radeon/kms: don't default display priority to high on rs4xx
drm/edid: fix typo in 1600x1200@75 mode
drm/nouveau: fix i2c-related init table handlers
drm/nouveau: support init table i2c device identifier 0x81
drm/nouveau: ensure we've parsed i2c table entry for INIT_*I2C* handlers
drm/nouveau: display error message for any failed init table opcode
drm/nouveau: fix init table handlers to return proper error codes
drm/nv50: support fractional feedback divider on newer chips
drm/nv50: fix monitor detection on certain chipsets
drm/nv50: store full dcb i2c entry from vbios
drm/nv50: fix suspend/resume with DP outputs
drm/nv50: output calculated crtc pll when debugging on
drm/nouveau: dump pll limits entries when debugging is on
drm/nouveau: bios parser fixes for eDP boards
drm/nouveau: fix a nouveau_bo dereference after it's been destroyed
drm/nv40: remove some completed ctxprog TODOs
...
Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.c')
-rw-r--r-- | drivers/gpu/drm/i915/i915_drv.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index cc03537bb883..5c51e45ab68d 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -188,6 +188,35 @@ const static struct pci_device_id pciidlist[] = { MODULE_DEVICE_TABLE(pci, pciidlist); #endif +#define INTEL_PCH_DEVICE_ID_MASK 0xff00 +#define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00 + +void intel_detect_pch (struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + struct pci_dev *pch; + + /* + * The reason to probe ISA bridge instead of Dev31:Fun0 is to + * make graphics device passthrough work easy for VMM, that only + * need to expose ISA bridge to let driver know the real hardware + * underneath. This is a requirement from virtualization team. + */ + pch = pci_get_class(PCI_CLASS_BRIDGE_ISA << 8, NULL); + if (pch) { + if (pch->vendor == PCI_VENDOR_ID_INTEL) { + int id; + id = pch->device & INTEL_PCH_DEVICE_ID_MASK; + + if (id == INTEL_PCH_CPT_DEVICE_ID_TYPE) { + dev_priv->pch_type = PCH_CPT; + DRM_DEBUG_KMS("Found CougarPoint PCH\n"); + } + } + pci_dev_put(pch); + } +} + static int i915_drm_freeze(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; |