iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/xe: Change GuC interrupt data

Browse Source 
Both GUC_HOST_INTERRUPT and MED_GUC_HOST_INTERRUPT can pass
additional payload data to the GuC but this capability is not
used by the firmware yet.

Stop using value mandated by legacy GuC interrupt register and
use default notify value (zero) instead.

Bspec: 49813, 63363
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
This commit is contained in:
Michal Wajdeczko 2023-05-19 11:19:02 +02:00 committed by Rodrigo Vivi
parent 5013ad8dd7
commit 915757a6cb
1 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/gpu/drm/xe/xe_guc.c
View File

@ -598,8 +598,14 @@ int xe_guc_suspend(struct xe_guc *guc)
void xe_guc_notify(struct xe_guc *guc)
{
struct xe_gt *gt = guc_to_gt(guc);
const u32 default_notify_data = 0;
xe_mmio_write32(gt, guc->notify_reg, GUC_SEND_TRIGGER);
/*
* Both GUC_HOST_INTERRUPT and MED_GUC_HOST_INTERRUPT can pass
* additional payload data to the GuC but this capability is not
* used by the firmware yet. Use default value in the meantime.
*/
xe_mmio_write32(gt, guc->notify_reg, default_notify_data);
}
int xe_guc_auth_huc(struct xe_guc *guc, u32 rsa_addr)