diff options
| author | Matt Roper <matthew.d.roper@intel.com> | 2023-09-13 16:14:17 -0700 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2023-12-21 11:41:14 -0500 |
| commit | 0d0534750f9d4575abf0da3b41a78e5643e6c8dd (patch) | |
| tree | 8904cc887a08011c5ae8ca289f71c03746f79cf2 /drivers/gpu/drm/xe/xe_pm.c | |
| parent | 7764222d54b71a9577cff9296420bf0a780b0c5d (diff) | |
drm/xe/wa: Apply tile workarounds at probe/resume
Although the vast majority of workarounds the driver needs to implement
are either GT-based or display-based, there are occasionally workarounds
that reside outside those parts of the hardware (i.e., in they target
registers in the sgunit/soc); we can consider these to be "tile"
workarounds since there will be instance of these registers per tile.
The registers in question should only lose their values during a
function-level reset, so they only need to be applied during probe and
resume; the registers will not be affected by GT/engine resets.
Tile workarounds are rare (there's only one, 22010954014, that's
relevant to Xe at the moment) so it's probably not worth updating the
xe_rtp design to handle tile-level workarounds yet, although we may want
to consider that in the future if/when more of these show up on future
platforms.
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Link: https://lore.kernel.org/r/20230913231411.291933-13-matthew.d.roper@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'drivers/gpu/drm/xe/xe_pm.c')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_pm.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_pm.c b/drivers/gpu/drm/xe/xe_pm.c index 5e992e62d0fb..2c2745f86223 100644 --- a/drivers/gpu/drm/xe/xe_pm.c +++ b/drivers/gpu/drm/xe/xe_pm.c @@ -19,6 +19,7 @@ #include "xe_guc.h" #include "xe_irq.h" #include "xe_pcode.h" +#include "xe_wa.h" /** * DOC: Xe Power Management @@ -79,10 +80,14 @@ int xe_pm_suspend(struct xe_device *xe) */ int xe_pm_resume(struct xe_device *xe) { + struct xe_tile *tile; struct xe_gt *gt; u8 id; int err; + for_each_tile(tile, xe, id) + xe_wa_apply_tile_workarounds(tile); + for_each_gt(gt, xe, id) { err = xe_pcode_init(gt); if (err) |