diff options
| author | Ilia Mirkin <imirkin@alum.mit.edu> | 2014-03-26 19:37:21 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-06-07 13:25:34 -0700 |
| commit | bfb0756180545a171be15acdb4ceb30bd7f6f7e1 (patch) | |
| tree | 1aae9cf3cc191725932dd0cb380ecfd45f5c4259 /drivers | |
| parent | 7ba55415d0cfe7db9cb838871e50cbb22a28f697 (diff) | |
| download | lwn-bfb0756180545a171be15acdb4ceb30bd7f6f7e1.tar.gz lwn-bfb0756180545a171be15acdb4ceb30bd7f6f7e1.zip | |
drm/nouveau/acpi: allow non-optimus setups to load vbios from acpi
commit a3d0b1218d351c6e6f3cea36abe22236a08cb246 upstream.
There appear to be a crop of new hardware where the vbios is not
available from PROM/PRAMIN, but there is a valid _ROM method in ACPI.
The data read from PCIROM almost invariably contains invalid
instructions (still has the x86 opcodes), which makes this a low-risk
way to try to obtain a valid vbios image.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76475
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_acpi.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.c b/drivers/gpu/drm/nouveau/nouveau_acpi.c index d97f20069d3e..5cec3a0c6c85 100644 --- a/drivers/gpu/drm/nouveau/nouveau_acpi.c +++ b/drivers/gpu/drm/nouveau/nouveau_acpi.c @@ -372,9 +372,6 @@ bool nouveau_acpi_rom_supported(struct pci_dev *pdev) acpi_status status; acpi_handle dhandle, rom_handle; - if (!nouveau_dsm_priv.dsm_detected && !nouveau_dsm_priv.optimus_detected) - return false; - dhandle = DEVICE_ACPI_HANDLE(&pdev->dev); if (!dhandle) return false; |