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authorZhenyu Wang <zhenyuw@linux.intel.com>2010-02-23 14:05:24 +0800
committerEric Anholt <eric@anholt.net>2010-02-26 13:23:20 -0800
commit1f7a6e372e9cb4d749f34c0738d832e6cadb4071 (patch)
treedd9d5a80528078424dd4b3385917c3e82ee374cd /drivers/gpu
parentc619eed4b2ee1b2bde3e02464eb81632a08bb976 (diff)
downloadop-kernel-dev-1f7a6e372e9cb4d749f34c0738d832e6cadb4071.zip
op-kernel-dev-1f7a6e372e9cb4d749f34c0738d832e6cadb4071.tar.gz
drm/i915: Add dependency on the intel agp module
See http://bugzilla.kernel.org/show_bug.cgi?id=15021 Make sure that the appropriate AGP module is loaded and probed before trying to set up the DRM. The DRM already depends on the AGP core, but in this case we know the specific AGP driver we need too, and can help users avoid the trap of loading the AGP driver after the DRM driver. Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/i915/i915_drv.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 2a9178b..85ad020 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -49,6 +49,7 @@ unsigned int i915_lvds_downclock = 0;
module_param_named(lvds_downclock, i915_lvds_downclock, int, 0400);
static struct drm_driver driver;
+extern int intel_agp_enabled;
#define INTEL_VGA_DEVICE(id, info) { \
.class = PCI_CLASS_DISPLAY_VGA << 8, \
@@ -558,6 +559,11 @@ static struct drm_driver driver = {
static int __init i915_init(void)
{
+ if (!intel_agp_enabled) {
+ DRM_ERROR("drm/i915 can't work without intel_agp module!\n");
+ return -ENODEV;
+ }
+
driver.num_ioctls = i915_max_ioctl;
i915_gem_shrinker_init();
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