diff options
| author |   Daniel Vetter <daniel.vetter@ffwll.ch> | 2017-07-19 12:00:43 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2017-07-19 14:04:03 +0200 |
| commit | 023f807989f4d6a076258f4efe6d1da0d7aaeb29 (patch) | |
| tree | 1ca4a5c1ca66ef275a0f6735b74153e1ee126158 /drivers | |
| parent | drm/i915: Fix bad comparison in skl_compute_plane_wm, v2. (diff) | |
| download | linux-dev-023f807989f4d6a076258f4efe6d1da0d7aaeb29.tar.xz linux-dev-023f807989f4d6a076258f4efe6d1da0d7aaeb29.zip | |
drm/i915: More stolen quirking
I've found a bios with an off-by-one at the other end. There's a pnp
reservation for 0xc5400000-0xc7fffffe and we want stolen in 0xc6000000
through 0xc8000000.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99872
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98683
Cc: Martin Peres <martin.peres@linux.intel.com>
Reviewed-by: Martin Peres <martin.peres@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170719100043.30851-1-daniel.vetter@ffwll.ch
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_stolen.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c index a817b3e0b17e..c11c915382e7 100644 --- a/drivers/gpu/drm/i915/i915_gem_stolen.c +++ b/drivers/gpu/drm/i915/i915_gem_stolen.c @@ -254,9 +254,10 @@ static dma_addr_t i915_stolen_to_dma(struct drm_i915_private *dev_priv) * This is a BIOS w/a: Some BIOS wrap stolen in the root * PCI bus, but have an off-by-one error. Hence retry the * reservation starting from 1 instead of 0. + * There's also BIOS with off-by-one on the other end. */ r = devm_request_mem_region(dev_priv->drm.dev, base + 1, - ggtt->stolen_size - 1, + ggtt->stolen_size - 2, "Graphics Stolen Memory"); /* * GEN3 firmware likes to smash pci bridges into the stolen |