diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-08-04 07:52:21 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-08-04 08:09:13 +0100 |
| commit | 0088e522ddcb2cb5763ad85f9db2c2b473843d8d (patch) | |
| tree | f84652af8a1bc42e32f2514fe64995bacc568f81 /drivers/gpu/drm/i915/i915_gem_gtt.c | |
| parent | 894eeecc1e3b47ef115e252ec58eff7ec174e7ef (diff) | |
drm/i915: Split GGTT initialisation between probing and setup
In order to handle conflicting drivers (i.e. vgacon) having a different
setup of hardware, we have to remove those other drivers before we try
to setup our own mappings. This requires us to split GGTT initialisation
between probing for the hardware location (part of the PCI BAR) and
later establishing the kernel resources for it.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1470293567-10811-2-git-send-email-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_gtt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_gtt.c | 34 |
1 files changed, 23 insertions, 11 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 671b1cab5e54..3fc77776d89b 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -3208,10 +3208,10 @@ static void i915_gmch_remove(struct i915_address_space *vm) } /** - * i915_ggtt_init_hw - Initialize GGTT hardware + * i915_ggtt_probe_hw - Probe GGTT hardware location * @dev: DRM device */ -int i915_ggtt_init_hw(struct drm_device *dev) +int i915_ggtt_probe_hw(struct drm_device *dev) { struct drm_i915_private *dev_priv = to_i915(dev); struct i915_ggtt *ggtt = &dev_priv->ggtt; @@ -3254,14 +3254,6 @@ int i915_ggtt_init_hw(struct drm_device *dev) ggtt->mappable_end = min(ggtt->mappable_end, ggtt->base.total); } - /* - * Initialise stolen early so that we may reserve preallocated - * objects for the BIOS to KMS transition. - */ - ret = i915_gem_init_stolen(dev); - if (ret) - goto out_gtt_cleanup; - /* GMADR is the PCI mmio aperture into the global GTT. */ DRM_INFO("Memory usable by graphics device = %lluM\n", ggtt->base.total >> 20); @@ -3273,10 +3265,30 @@ int i915_ggtt_init_hw(struct drm_device *dev) #endif return 0; +} + +/** + * i915_ggtt_init_hw - Initialize GGTT hardware + * @dev: DRM device + */ +int i915_ggtt_init_hw(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = to_i915(dev); + struct i915_ggtt *ggtt = &dev_priv->ggtt; + int ret; + + /* + * Initialise stolen early so that we may reserve preallocated + * objects for the BIOS to KMS transition. + */ + ret = i915_gem_init_stolen(dev); + if (ret) + goto out_gtt_cleanup; + + return 0; out_gtt_cleanup: ggtt->base.cleanup(&ggtt->base); - return ret; } |