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authorDave Airlie <airlied@starflyer.(none)>2005-07-10 17:31:26 +1000
committerDave Airlie <airlied@linux.ie>2005-07-10 17:31:26 +1000
commitcda173806644d2af22ffd9896eed8ef99b97d356 (patch)
tree374ad48818df951a03c59d54ec75d5b19d4a24c3 /drivers/char/drm/i915_dma.c
parentceb9c27aa7d61c70f4c75f017d9fbc9de50034f1 (diff)
drm: add test for AGP devices and driver override for it.
Added device_is_agp callback to drm_driver. This function is called by the platform-specific drm_device_is_agp function. Added implementation of this function the the Linux-specific portion of the MGA driver to detect PCI G450 cards. Added code to the Linux-specific portion of the generic DRM layer to not initialize AGP infrastructure if the card is not AGP (this matches what already existed in BSD). Fix up i810/i830 and i915 drivers to always return AGP as they don't always report the capability. Fix the MGA to not report AGP for a card that has an AGP chip behind a PCI bridge. From: Ian Romanick, Dave Airlie, Alan Hourihane Signed-off-by: Dave Airlie <airlied@linux.ie>
Diffstat (limited to 'drivers/char/drm/i915_dma.c')
-rw-r--r--drivers/char/drm/i915_dma.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/char/drm/i915_dma.c b/drivers/char/drm/i915_dma.c
index 759f22943eb1..34f552f90c4a 100644
--- a/drivers/char/drm/i915_dma.c
+++ b/drivers/char/drm/i915_dma.c
@@ -732,3 +732,19 @@ drm_ioctl_desc_t i915_ioctls[] = {
};
int i915_max_ioctl = DRM_ARRAY_SIZE(i915_ioctls);
+
+/**
+ * Determine if the device really is AGP or not.
+ *
+ * All Intel graphics chipsets are treated as AGP, even if they are really
+ * PCI-e.
+ *
+ * \param dev The device to be tested.
+ *
+ * \returns
+ * A value of 1 is always retured to indictate every i9x5 is AGP.
+ */
+int i915_driver_device_is_agp(drm_device_t * dev)
+{
+ return 1;
+}