diff options
| author | Ben Crocker <[email protected]> | 2018-02-22 22:52:19 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2018-02-23 04:35:54 +0000 |
| commit | 2c83029cda55a5e7665c7c6326909427d6a01350 (patch) | |
| tree | bc8c5e304ee46a72f0af3075ecd84ce244284cd0 /scripts/basic/fixdep.c | |
| parent | drm/amd/display: VGA black screen from s3 when attached to hook (diff) | |
| download | kernel-2c83029cda55a5e7665c7c6326909427d6a01350.tar.gz kernel-2c83029cda55a5e7665c7c6326909427d6a01350.zip | |
drm/radeon: insist on 32-bit DMA for Cedar on PPC64/PPC64LE
In radeon_device_init, set the need_dma32 flag for Cedar chips
(e.g. FirePro 2270). This fixes, or at least works around, a bug
on PowerPC exposed by last year's commits
8e3f1b1d8255105f31556aacf8aeb6071b00d469 (Russell Currey)
and
253fd51e2f533552ae35a0c661705da6c4842c1b (Alistair Popple)
which enabled the 64-bit DMA iommu bypass.
This caused the device to freeze, in some cases unrecoverably, and is
the subject of several bug reports internal to Red Hat.
Signed-off-by: Ben Crocker <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Cc: [email protected]
Diffstat (limited to 'scripts/basic/fixdep.c')
0 files changed, 0 insertions, 0 deletions