linux_dsm_epyc7002/drivers/gpu
Ben Crocker bcb0b981c5 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

8e3f1b1d82 (Russell Currey)

and

253fd51e2f (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 <bcrocker@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2018-02-26 23:09:38 -05:00
..
drm drm/radeon: insist on 32-bit DMA for Cedar on PPC64/PPC64LE 2018-02-26 23:09:38 -05:00
host1x gpu: host1x: Use IOMMU groups 2017-12-21 14:52:36 +01:00
ipu-v3 gpu: ipu-v3: allow to build with COMPILE_TEST 2017-12-19 12:49:11 +01:00
vga vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
Makefile