From 103d43f43f6295b946df21426dff64e8b7bcbd4a Mon Sep 17 00:00:00 2001 From: Tvrtko Ursulin Date: Fri, 21 Jun 2019 08:08:04 +0100 Subject: [PATCH] drm/i915: Compartmentalize i915_ggtt_cleanup_hw Continuing on the theme of better logical organization of our code, make the first step towards making the ggtt code better isolated from wider struct drm_i915_private. v2: * Cleanup of mm.wc_stash does not need struct_mutex. (Chris) Signed-off-by: Tvrtko Ursulin Reviewed-by: Chris Wilson Link: https://patchwork.freedesktop.org/patch/msgid/20190621070811.7006-26-tvrtko.ursulin@linux.intel.com --- drivers/gpu/drm/i915/i915_gem_gtt.c | 55 ++++++++++++++++------------- 1 file changed, 31 insertions(+), 24 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index b38af1df1fe92..d10590f868b74 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -2775,14 +2775,19 @@ static void fini_aliasing_ppgtt(struct drm_i915_private *i915) struct i915_ggtt *ggtt = &i915->ggtt; struct i915_ppgtt *ppgtt; + mutex_lock(&i915->drm.struct_mutex); + ppgtt = fetch_and_zero(&i915->mm.aliasing_ppgtt); if (!ppgtt) - return; + goto out; i915_vm_put(&ppgtt->vm); ggtt->vm.vma_ops.bind_vma = ggtt_bind_vma; ggtt->vm.vma_ops.unbind_vma = ggtt_unbind_vma; + +out: + mutex_unlock(&i915->drm.struct_mutex); } static int ggtt_reserve_guc_top(struct i915_ggtt *ggtt) @@ -2883,20 +2888,14 @@ err_reserve: return ret; } -/** - * i915_ggtt_cleanup_hw - Clean up GGTT hardware initialization - * @dev_priv: i915 device - */ -void i915_ggtt_cleanup_hw(struct drm_i915_private *dev_priv) +static void ggtt_cleanup_hw(struct i915_ggtt *ggtt) { - struct i915_ggtt *ggtt = &dev_priv->ggtt; + struct drm_i915_private *i915 = ggtt->vm.i915; struct i915_vma *vma, *vn; - struct pagevec *pvec; ggtt->vm.closed = true; - mutex_lock(&dev_priv->drm.struct_mutex); - fini_aliasing_ppgtt(dev_priv); + mutex_lock(&i915->drm.struct_mutex); list_for_each_entry_safe(vma, vn, &ggtt->vm.bound_list, vm_link) WARN_ON(i915_vma_unbind(vma)); @@ -2913,18 +2912,31 @@ void i915_ggtt_cleanup_hw(struct drm_i915_private *dev_priv) ggtt->vm.cleanup(&ggtt->vm); - pvec = &dev_priv->mm.wc_stash.pvec; + mutex_unlock(&i915->drm.struct_mutex); + + arch_phys_wc_del(ggtt->mtrr); + io_mapping_fini(&ggtt->iomap); +} + +/** + * i915_ggtt_cleanup_hw - Clean up GGTT hardware initialization + * @dev_priv: i915 device + */ +void i915_ggtt_cleanup_hw(struct drm_i915_private *i915) +{ + struct pagevec *pvec; + + fini_aliasing_ppgtt(i915); + + ggtt_cleanup_hw(&i915->ggtt); + + pvec = &i915->mm.wc_stash.pvec; if (pvec->nr) { set_pages_array_wb(pvec->pages, pvec->nr); __pagevec_release(pvec); } - mutex_unlock(&dev_priv->drm.struct_mutex); - - arch_phys_wc_del(ggtt->mtrr); - io_mapping_fini(&ggtt->iomap); - - i915_gem_cleanup_stolen(dev_priv); + i915_gem_cleanup_stolen(i915); } static unsigned int gen6_get_total_gtt_size(u16 snb_gmch_ctl) @@ -3520,11 +3532,6 @@ int i915_ggtt_probe_hw(struct drm_i915_private *i915) return 0; } -static void ggtt_cleanup_hw(struct i915_ggtt *ggtt) -{ - ggtt->vm.cleanup(&ggtt->vm); -} - static int ggtt_init_hw(struct i915_ggtt *ggtt) { struct drm_i915_private *i915 = ggtt->vm.i915; @@ -3545,7 +3552,7 @@ static int ggtt_init_hw(struct i915_ggtt *ggtt) if (!io_mapping_init_wc(&ggtt->iomap, ggtt->gmadr.start, ggtt->mappable_end)) { - ggtt_cleanup_hw(ggtt); + ggtt->vm.cleanup(&ggtt->vm); ret = -EIO; goto out; } @@ -3590,7 +3597,7 @@ int i915_ggtt_init_hw(struct drm_i915_private *dev_priv) return 0; out_gtt_cleanup: - ggtt_cleanup_hw(&dev_priv->ggtt); + dev_priv->ggtt.vm.cleanup(&dev_priv->ggtt.vm); return ret; } -- 2.39.5