diff options
| author | Vinay Belgaumkar <vinay.belgaumkar@intel.com> | 2024-06-20 15:49:27 -0700 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2024-06-26 18:23:45 -0400 |
| commit | 3b1592fb783549e968aa20035ab37be5fb124f02 (patch) | |
| tree | 5a3f1ac8c3c2d9285d20f5af5577d399fb10da03 /drivers/gpu/drm/xe/xe_device.c | |
| parent | 8664e7637388c013f4e953371d023ec7c2d84c8d (diff) | |
drm/xe/lnl: Apply Wa_22019338487
This WA requires us to limit media GT frequency requests to a certain
cap value during driver load. Freq limits are restored after load
completes, so perf will not be affected during normal operations.
During normal driver operation, this WA requires dummy writes to media
offset 0x380D8C after every ~63 GGTT writes. This will ensure completion
of the LMEM writes originating from Gunit.
During driver unload(before FLR), the WA requires that we set requested
frequency to the cap value again.
v3: Do not use WA number in function name. Call WA wrapper from xe_device.
Rename some variables, check for locks in the correct function (Rodrigo).
Ensure reset path is also covered for this WA.
v4: Fix BAT failure
v5: Add a function pointer for ggtt_ops (Michal W)
v6: Fix name collision and use static function (Rodrigo)
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240620224928.3986377-2-vinay.belgaumkar@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'drivers/gpu/drm/xe/xe_device.c')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_device.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_device.c b/drivers/gpu/drm/xe/xe_device.c index 0d57eea8f083..ca5e8435485a 100644 --- a/drivers/gpu/drm/xe/xe_device.c +++ b/drivers/gpu/drm/xe/xe_device.c @@ -689,6 +689,9 @@ int xe_device_probe(struct xe_device *xe) xe_hwmon_register(xe); + for_each_gt(gt, xe, id) + xe_gt_sanitize_freq(gt); + return devm_add_action_or_reset(xe->drm.dev, xe_device_sanitize, xe); err_fini_display: |