[RFC 18/31] drm/i915: Make ggtt invalidation work on ggtt

[Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>]

From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

It is more logical for ggtt invalidation to take ggtt as input parameter.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/i915_gem_gtt.c | 51 ++++++++++++++---------------
 drivers/gpu/drm/i915/i915_gem_gtt.h |  2 +-
 2 files changed, 26 insertions(+), 27 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 2232bd56e912..95af45156cc2 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -111,9 +111,9 @@
 static int
 i915_get_ggtt_vma_pages(struct i915_vma *vma);
 
-static void gen6_ggtt_invalidate(struct drm_i915_private *i915)
+static void gen6_ggtt_invalidate(struct i915_ggtt *ggtt)
 {
-	struct intel_uncore *uncore = &i915->uncore;
+	struct intel_uncore *uncore = &ggtt->vm.i915->uncore;
 
 	/*
 	 * Note that as an uncached mmio write, this will flush the
@@ -122,24 +122,19 @@ static void gen6_ggtt_invalidate(struct drm_i915_private *i915)
 	intel_uncore_write_fw(uncore, GFX_FLSH_CNTL_GEN6, GFX_FLSH_CNTL_EN);
 }
 
-static void guc_ggtt_invalidate(struct drm_i915_private *i915)
+static void guc_ggtt_invalidate(struct i915_ggtt *ggtt)
 {
-	struct intel_uncore *uncore = &i915->uncore;
+	struct intel_uncore *uncore = &ggtt->vm.i915->uncore;
 
-	gen6_ggtt_invalidate(i915);
+	gen6_ggtt_invalidate(ggtt);
 	intel_uncore_write_fw(uncore, GEN8_GTCR, GEN8_GTCR_INVALIDATE);
 }
 
-static void gmch_ggtt_invalidate(struct drm_i915_private *i915)
+static void gmch_ggtt_invalidate(struct i915_ggtt *ggtt)
 {
 	intel_gtt_chipset_flush();
 }
 
-static inline void i915_ggtt_invalidate(struct drm_i915_private *i915)
-{
-	i915->ggtt.invalidate(i915);
-}
-
 static int ppgtt_bind_vma(struct i915_vma *vma,
 			  enum i915_cache_level cache_level,
 			  u32 unused)
@@ -1876,7 +1871,7 @@ static int gen6_alloc_va_range(struct i915_address_space *vm,
 
 	if (flush) {
 		mark_tlbs_dirty(&ppgtt->base);
-		gen6_ggtt_invalidate(vm->i915);
+		gen6_ggtt_invalidate(&vm->i915->ggtt);
 	}
 
 	intel_runtime_pm_put(vm->i915, wakeref);
@@ -2025,7 +2020,7 @@ static int pd_vma_bind(struct i915_vma *vma,
 		gen6_write_pde(ppgtt, pde, pt);
 
 	mark_tlbs_dirty(&ppgtt->base);
-	gen6_ggtt_invalidate(ppgtt->base.vm.i915);
+	gen6_ggtt_invalidate(ggtt);
 
 	return 0;
 }
@@ -2340,7 +2335,7 @@ void i915_gem_suspend_gtt_mappings(struct drm_i915_private *dev_priv)
 
 	ggtt->vm.clear_range(&ggtt->vm, 0, ggtt->vm.total);
 
-	i915_ggtt_invalidate(dev_priv);
+	ggtt->invalidate(ggtt);
 }
 
 int i915_gem_gtt_prepare_pages(struct drm_i915_gem_object *obj,
@@ -2386,7 +2381,7 @@ static void gen8_ggtt_insert_page(struct i915_address_space *vm,
 
 	gen8_set_pte(pte, gen8_pte_encode(addr, level, 0));
 
-	ggtt->invalidate(vm->i915);
+	ggtt->invalidate(ggtt);
 }
 
 static void gen8_ggtt_insert_entries(struct i915_address_space *vm,
@@ -2414,7 +2409,7 @@ static void gen8_ggtt_insert_entries(struct i915_address_space *vm,
 	 * We want to flush the TLBs only after we're certain all the PTE
 	 * updates have finished.
 	 */
-	ggtt->invalidate(vm->i915);
+	ggtt->invalidate(ggtt);
 }
 
 static void gen6_ggtt_insert_page(struct i915_address_space *vm,
@@ -2429,7 +2424,7 @@ static void gen6_ggtt_insert_page(struct i915_address_space *vm,
 
 	iowrite32(vm->pte_encode(addr, level, flags), pte);
 
-	ggtt->invalidate(vm->i915);
+	ggtt->invalidate(ggtt);
 }
 
 /*
@@ -2455,7 +2450,7 @@ static void gen6_ggtt_insert_entries(struct i915_address_space *vm,
 	 * We want to flush the TLBs only after we're certain all the PTE
 	 * updates have finished.
 	 */
-	ggtt->invalidate(vm->i915);
+	ggtt->invalidate(ggtt);
 }
 
 static void nop_clear_range(struct i915_address_space *vm,
@@ -3650,25 +3645,29 @@ int i915_ggtt_enable_hw(struct drm_i915_private *dev_priv)
 
 void i915_ggtt_enable_guc(struct drm_i915_private *i915)
 {
-	GEM_BUG_ON(i915->ggtt.invalidate != gen6_ggtt_invalidate);
+	struct i915_ggtt *ggtt = &i915->ggtt;
 
-	i915->ggtt.invalidate = guc_ggtt_invalidate;
+	GEM_BUG_ON(ggtt->invalidate != gen6_ggtt_invalidate);
 
-	i915_ggtt_invalidate(i915);
+	ggtt->invalidate = guc_ggtt_invalidate;
+
+	ggtt->invalidate(ggtt);
 }
 
 void i915_ggtt_disable_guc(struct drm_i915_private *i915)
 {
+	struct i915_ggtt *ggtt = &i915->ggtt;
+
 	/* XXX Temporary pardon for error unload */
-	if (i915->ggtt.invalidate == gen6_ggtt_invalidate)
+	if (ggtt->invalidate == gen6_ggtt_invalidate)
 		return;
 
 	/* We should only be called after i915_ggtt_enable_guc() */
-	GEM_BUG_ON(i915->ggtt.invalidate != guc_ggtt_invalidate);
+	GEM_BUG_ON(ggtt->invalidate != guc_ggtt_invalidate);
 
-	i915->ggtt.invalidate = gen6_ggtt_invalidate;
+	ggtt->invalidate = gen6_ggtt_invalidate;
 
-	i915_ggtt_invalidate(i915);
+	ggtt->invalidate(ggtt);
 }
 
 void i915_gem_restore_gtt_mappings(struct drm_i915_private *dev_priv)
@@ -3710,7 +3709,7 @@ void i915_gem_restore_gtt_mappings(struct drm_i915_private *dev_priv)
 	}
 
 	ggtt->vm.closed = false;
-	i915_ggtt_invalidate(dev_priv);
+	ggtt->invalidate(ggtt);
 
 	mutex_unlock(&ggtt->vm.mutex);
 
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index f8c06288be65..b541190db6e8 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -401,7 +401,7 @@ struct i915_ggtt {
 
 	/** "Graphics Stolen Memory" holds the global PTEs */
 	void __iomem *gsm;
-	void (*invalidate)(struct drm_i915_private *dev_priv);
+	void (*invalidate)(struct i915_ggtt *ggtt);
 
 	bool do_idle_maps;
 
-- 
2.20.1

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