From 9ab3fe2d7dc39b088591b0121f041cbfd6bb1ef8 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Fri, 1 Nov 2019 14:10:08 +0000 Subject: [PATCH] drm/i915/gt: Move user_forcewake application to GT We already track the debugfs user_forcewake on the GT, so it is natural to pull the suspend/resume handling under gt/ as well. Signed-off-by: Chris Wilson Reviewed-by: Andi Shyti Link: https://patchwork.freedesktop.org/patch/msgid/20191101141009.15581-3-chris@chris-wilson.co.uk --- drivers/gpu/drm/i915/gem/i915_gem_pm.c | 22 ---------------------- drivers/gpu/drm/i915/gt/intel_gt_pm.c | 22 ++++++++++++++++++++++ 2 files changed, 22 insertions(+), 22 deletions(-) diff --git a/drivers/gpu/drm/i915/gem/i915_gem_pm.c b/drivers/gpu/drm/i915/gem/i915_gem_pm.c index 64dd04a..6779ab3 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_pm.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_pm.c @@ -11,24 +11,6 @@ #include "i915_drv.h" -static void user_forcewake(struct intel_gt *gt, bool suspend) -{ - int count = atomic_read(>->user_wakeref); - - /* Inside suspend/resume so single threaded, no races to worry about. */ - if (likely(!count)) - return; - - intel_gt_pm_get(gt); - if (suspend) { - GEM_BUG_ON(count > atomic_read(>->wakeref.count)); - atomic_sub(count, >->wakeref.count); - } else { - atomic_add(count, >->wakeref.count); - } - intel_gt_pm_put(gt); -} - void i915_gem_suspend(struct drm_i915_private *i915) { GEM_TRACE("\n"); @@ -36,8 +18,6 @@ void i915_gem_suspend(struct drm_i915_private *i915) intel_wakeref_auto(&i915->ggtt.userfault_wakeref, 0); flush_workqueue(i915->wq); - user_forcewake(&i915->gt, true); - /* * We have to flush all the executing contexts to main memory so * that they can saved in the hibernation image. To ensure the last @@ -132,8 +112,6 @@ void i915_gem_resume(struct drm_i915_private *i915) if (intel_gt_resume(&i915->gt)) goto err_wedged; - user_forcewake(&i915->gt, false); - out_unlock: intel_uncore_forcewake_put(&i915->uncore, FORCEWAKE_ALL); return; diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm.c b/drivers/gpu/drm/i915/gt/intel_gt_pm.c index 1679f4f..11661de 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_pm.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_pm.c @@ -18,6 +18,24 @@ #include "intel_rps.h" #include "intel_wakeref.h" +static void user_forcewake(struct intel_gt *gt, bool suspend) +{ + int count = atomic_read(>->user_wakeref); + + /* Inside suspend/resume so single threaded, no races to worry about. */ + if (likely(!count)) + return; + + intel_gt_pm_get(gt); + if (suspend) { + GEM_BUG_ON(count > atomic_read(>->wakeref.count)); + atomic_sub(count, >->wakeref.count); + } else { + atomic_add(count, >->wakeref.count); + } + intel_gt_pm_put(gt); +} + static int __gt_unpark(struct intel_wakeref *wf) { struct intel_gt *gt = container_of(wf, typeof(*gt), wakeref); @@ -210,6 +228,8 @@ int intel_gt_resume(struct intel_gt *gt) intel_uc_resume(>->uc); + user_forcewake(gt, false); + intel_uncore_forcewake_put(gt->uncore, FORCEWAKE_ALL); intel_gt_pm_put(gt); @@ -233,6 +253,8 @@ void intel_gt_suspend(struct intel_gt *gt) { intel_wakeref_t wakeref; + user_forcewake(gt, true); + /* We expect to be idle already; but also want to be independent */ wait_for_idle(gt); -- 2.7.4