diff options
| author | Chris Wilson <[email protected]> | 2019-09-09 12:00:08 +0100 |
|---|---|---|
| committer | Rodrigo Vivi <[email protected]> | 2019-10-07 10:44:46 -0700 |
| commit | 6c76a93c453643e11a1063906c7c39168dd8d163 (patch) | |
| tree | 6fd198e07e3e2bafe0060c3326eac911b52ffc94 /drivers/usb/cdns3/cdns3-debug.h | |
| parent | 93be1bae759e1c9d610835469c631913bfa42001 (diff) | |
drm/i915: Perform GGTT restore much earlier during resume
As soon as we re-enable the various functions within the HW, they may go
off and read data via a GGTT offset. Hence, if we have not yet restored
the GGTT PTE before then, they may read and even *write* random locations
in memory.
Detected by DMAR faults during resume.
Signed-off-by: Chris Wilson <[email protected]>
Cc: Mika Kuoppala <[email protected]>
Cc: Martin Peres <[email protected]>
Cc: Joonas Lahtinen <[email protected]>
Cc: [email protected]
Reviewed-by: Mika Kuoppala <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit cec5ca08e36fd18d2939b98055346b3b06f56c6c)
Signed-off-by: Rodrigo Vivi <[email protected]>
Diffstat (limited to 'drivers/usb/cdns3/cdns3-debug.h')
0 files changed, 0 insertions, 0 deletions