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_drv.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_drv.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 83afdd0597b5..8996c2a6cd07 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -1004,16 +1004,10 @@ static int i915_driver_init_hw(struct drm_i915_private *dev_priv) intel_sanitize_options(dev_priv); - ret = i915_ggtt_init_hw(dev); + ret = i915_ggtt_probe_hw(dev); if (ret) return ret; - ret = i915_ggtt_enable_hw(dev); - if (ret) { - DRM_ERROR("failed to enable GGTT\n"); - goto out_ggtt; - } - /* WARNING: Apparently we must kick fbdev drivers before vgacon, * otherwise the vga fbdev driver falls over. */ ret = i915_kick_out_firmware_fb(dev_priv); @@ -1028,6 +1022,16 @@ static int i915_driver_init_hw(struct drm_i915_private *dev_priv) goto out_ggtt; } + ret = i915_ggtt_init_hw(dev); + if (ret) + return ret; + + ret = i915_ggtt_enable_hw(dev); + if (ret) { + DRM_ERROR("failed to enable GGTT\n"); + goto out_ggtt; + } + pci_set_master(dev->pdev); /* overlay on gen2 is broken and can't address above 1G */ |