diff options
author | Matthew Brost <matthew.brost@intel.com> | 2021-07-21 14:50:58 -0700 |
---|---|---|
committer | John Harrison <John.C.Harrison@Intel.com> | 2021-07-22 10:07:23 -0700 |
commit | b97060a99b01b4d706b87df450b69f82962d2fba (patch) | |
tree | 6c67b24ccf23500ce9f50788c58f1d8f315719a6 /drivers/gpu/drm/i915/gt/intel_gt.c | |
parent | f4eb1f3fe94683cd7bdbb355d913bacf7e5d205f (diff) | |
download | linux-b97060a99b01b4d706b87df450b69f82962d2fba.tar.bz2 |
drm/i915/guc: Update intel_gt_wait_for_idle to work with GuC
When running the GuC the GPU can't be considered idle if the GuC still
has contexts pinned. As such, a call has been added in
intel_gt_wait_for_idle to idle the UC and in turn the GuC by waiting for
the number of unpinned contexts to go to zero.
v2: rtimeout -> remaining_timeout
v3: Drop unnecessary includes, guc_submission_busy_loop ->
guc_submission_send_busy_loop, drop negatie timeout trick, move a
refactor of guc_context_unpin to earlier path (John H)
v4: Add stddef.h back into intel_gt_requests.h, sort circuit idle
function if not in GuC submission mode
Cc: John Harrison <john.c.harrison@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210721215101.139794-16-matthew.brost@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_gt.c')
-rw-r--r-- | drivers/gpu/drm/i915/gt/intel_gt.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c index e714e21c0a4d..acfdd53b2678 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt.c +++ b/drivers/gpu/drm/i915/gt/intel_gt.c @@ -585,6 +585,25 @@ static void __intel_gt_disable(struct intel_gt *gt) GEM_BUG_ON(intel_gt_pm_is_awake(gt)); } +int intel_gt_wait_for_idle(struct intel_gt *gt, long timeout) +{ + long remaining_timeout; + + /* If the device is asleep, we have no requests outstanding */ + if (!intel_gt_pm_is_awake(gt)) + return 0; + + while ((timeout = intel_gt_retire_requests_timeout(gt, timeout, + &remaining_timeout)) > 0) { + cond_resched(); + if (signal_pending(current)) + return -EINTR; + } + + return timeout ? timeout : intel_uc_wait_for_idle(>->uc, + remaining_timeout); +} + int intel_gt_init(struct intel_gt *gt) { int err; |