diff options
| author | Michał Winiarski <michal.winiarski@intel.com> | 2022-07-27 19:42:20 -0700 |
|---|---|---|
| committer | John Harrison <John.C.Harrison@Intel.com> | 2022-07-29 10:35:53 -0700 |
| commit | 9fb3473732908ff0f8d8f8763318c407489ae955 (patch) | |
| tree | 798faeac28170241a92e6d8b2e812143382464c1 /drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c | |
| parent | 22645976ae4c0e7eebc8cee7942692280457551e (diff) | |
drm/i915/guc: Route semaphores to GuC for Gen12+
In GuC submission mode, there is an option to use auto-switch out
semaphores and have GuC auto-switch in a waiting context. This
requires routing the semaphore interrupt to GuC.
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220728024225.2363663-2-John.C.Harrison@Intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c index 76916aed897a..0b8c6450fa34 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c @@ -4191,13 +4191,27 @@ int intel_guc_submission_setup(struct intel_engine_cs *engine) void intel_guc_submission_enable(struct intel_guc *guc) { + struct intel_gt *gt = guc_to_gt(guc); + + /* Enable and route to GuC */ + if (GRAPHICS_VER(gt->i915) >= 12) + intel_uncore_write(gt->uncore, GEN12_GUC_SEM_INTR_ENABLES, + GUC_SEM_INTR_ROUTE_TO_GUC | + GUC_SEM_INTR_ENABLE_ALL); + guc_init_lrc_mapping(guc); guc_init_engine_stats(guc); } void intel_guc_submission_disable(struct intel_guc *guc) { + struct intel_gt *gt = guc_to_gt(guc); + /* Note: By the time we're here, GuC may have already been reset */ + + /* Disable and route to host */ + if (GRAPHICS_VER(gt->i915) >= 12) + intel_uncore_write(gt->uncore, GEN12_GUC_SEM_INTR_ENABLES, 0x0); } static bool __guc_submission_supported(struct intel_guc *guc) |