From: Chris Wilson Date: Mon, 18 Nov 2019 18:49:33 +0000 (+0000) Subject: drm/i915/gt: Only wait for register chipset flush if active X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b6422694c5853f7a4faf00431c9d7b5368138152;p=linux.git drm/i915/gt: Only wait for register chipset flush if active Only serialise with the chipset using an mmio if the chipset is currently active. We expect that any writes into the chipset range will simply be forgotten until it wakes up. Signed-off-by: Chris Wilson Reviewed-by: Mika Kuoppala Link: https://patchwork.freedesktop.org/patch/msgid/20191118184943.2593048-8-chris@chris-wilson.co.uk --- diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c index b5a9b87e4ec9d..c4fd8d65b8a37 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt.c +++ b/drivers/gpu/drm/i915/gt/intel_gt.c @@ -304,7 +304,7 @@ void intel_gt_flush_ggtt_writes(struct intel_gt *gt) intel_gt_chipset_flush(gt); - with_intel_runtime_pm(uncore->rpm, wakeref) { + with_intel_runtime_pm_if_in_use(uncore->rpm, wakeref) { unsigned long flags; spin_lock_irqsave(&uncore->lock, flags);