Re: [Intel-gfx] [PATCH v8 13/16] drm/i915/gt: Use to_gt() helper for GGTT accesses

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On 12/14/2021 11:33 AM, Andi Shyti wrote:
From: Michał Winiarski <michal.winiarski@xxxxxxxxx>

GGTT is currently available both through i915->ggtt and gt->ggtt, and we
eventually want to get rid of the i915->ggtt one.
Use to_gt() for all i915->ggtt accesses to help with the future
refactoring.

Signed-off-by: Michał Winiarski <michal.winiarski@xxxxxxxxx>
Cc: Michal Wajdeczko <michal.wajdeczko@xxxxxxxxx>
Signed-off-by: Andi Shyti <andi.shyti@xxxxxxxxxxxxxxx>
---
  drivers/gpu/drm/i915/gt/intel_ggtt.c         | 14 +++++++-------
  drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c |  6 +++---
  drivers/gpu/drm/i915/gt/intel_region_lmem.c  |  4 ++--
  drivers/gpu/drm/i915/gt/selftest_reset.c     |  2 +-
  4 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_ggtt.c b/drivers/gpu/drm/i915/gt/intel_ggtt.c
index 971e737b37b2..ec3b998392ff 100644
--- a/drivers/gpu/drm/i915/gt/intel_ggtt.c
+++ b/drivers/gpu/drm/i915/gt/intel_ggtt.c
@@ -89,7 +89,7 @@ int i915_ggtt_init_hw(struct drm_i915_private *i915)
  	 * beyond the end of the batch buffer, across the page boundary,
  	 * and beyond the end of the GTT if we do not provide a guard.
  	 */
-	ret = ggtt_init_hw(&i915->ggtt);
+	ret = ggtt_init_hw(to_gt(i915)->ggtt);
  	if (ret)
  		return ret;
@@ -725,14 +725,14 @@ int i915_init_ggtt(struct drm_i915_private *i915)
  {
  	int ret;
- ret = init_ggtt(&i915->ggtt);
+	ret = init_ggtt(to_gt(i915)->ggtt);
  	if (ret)
  		return ret;
if (INTEL_PPGTT(i915) == INTEL_PPGTT_ALIASING) {
-		ret = init_aliasing_ppgtt(&i915->ggtt);
+		ret = init_aliasing_ppgtt(to_gt(i915)->ggtt);
  		if (ret)
-			cleanup_init_ggtt(&i915->ggtt);
+			cleanup_init_ggtt(to_gt(i915)->ggtt);
  	}
return 0;
@@ -775,7 +775,7 @@ static void ggtt_cleanup_hw(struct i915_ggtt *ggtt)
   */
  void i915_ggtt_driver_release(struct drm_i915_private *i915)
  {
-	struct i915_ggtt *ggtt = &i915->ggtt;
+	struct i915_ggtt *ggtt = to_gt(i915)->ggtt;
fini_aliasing_ppgtt(ggtt); @@ -790,7 +790,7 @@ void i915_ggtt_driver_release(struct drm_i915_private *i915)
   */
  void i915_ggtt_driver_late_release(struct drm_i915_private *i915)
  {
-	struct i915_ggtt *ggtt = &i915->ggtt;
+	struct i915_ggtt *ggtt = to_gt(i915)->ggtt;
GEM_WARN_ON(kref_read(&ggtt->vm.resv_ref) != 1);
  	dma_resv_fini(&ggtt->vm._resv);
@@ -1232,7 +1232,7 @@ int i915_ggtt_probe_hw(struct drm_i915_private *i915)
  {
  	int ret;
- ret = ggtt_probe_hw(&i915->ggtt, to_gt(i915));
+	ret = ggtt_probe_hw(to_gt(i915)->ggtt, to_gt(i915));
  	if (ret)
  		return ret;
diff --git a/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c b/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
index f8948de72036..beabf3bc9b75 100644
--- a/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
+++ b/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
@@ -728,8 +728,8 @@ static void detect_bit_6_swizzle(struct i915_ggtt *ggtt)
  		swizzle_y = I915_BIT_6_SWIZZLE_NONE;
  	}
- i915->ggtt.bit_6_swizzle_x = swizzle_x;
-	i915->ggtt.bit_6_swizzle_y = swizzle_y;
+	to_gt(i915)->ggtt->bit_6_swizzle_x = swizzle_x;
+	to_gt(i915)->ggtt->bit_6_swizzle_y = swizzle_y;
  }
/*
@@ -896,7 +896,7 @@ void intel_gt_init_swizzling(struct intel_gt *gt)
  	struct intel_uncore *uncore = gt->uncore;
if (GRAPHICS_VER(i915) < 5 ||
-	    i915->ggtt.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_NONE)
+	    to_gt(i915)->ggtt->bit_6_swizzle_x == I915_BIT_6_SWIZZLE_NONE)
  		return;
intel_uncore_rmw(uncore, DISP_ARB_CTL, 0, DISP_TILE_SURFACE_SWIZZLING);
diff --git a/drivers/gpu/drm/i915/gt/intel_region_lmem.c b/drivers/gpu/drm/i915/gt/intel_region_lmem.c
index fde2dcb59809..21215a080088 100644
--- a/drivers/gpu/drm/i915/gt/intel_region_lmem.c
+++ b/drivers/gpu/drm/i915/gt/intel_region_lmem.c
@@ -15,7 +15,7 @@
  static int init_fake_lmem_bar(struct intel_memory_region *mem)
  {
  	struct drm_i915_private *i915 = mem->i915;
-	struct i915_ggtt *ggtt = &i915->ggtt;
+	struct i915_ggtt *ggtt = to_gt(i915)->ggtt;
  	unsigned long n;
  	int ret;
@@ -131,7 +131,7 @@ intel_gt_setup_fake_lmem(struct intel_gt *gt)
  	if (!i915->params.fake_lmem_start)
  		return ERR_PTR(-ENODEV);
- GEM_BUG_ON(i915_ggtt_has_aperture(&i915->ggtt));
+	GEM_BUG_ON(i915_ggtt_has_aperture(to_gt(i915)->ggtt));
/* Your mappable aperture belongs to me now! */
  	mappable_end = pci_resource_len(pdev, 2);
diff --git a/drivers/gpu/drm/i915/gt/selftest_reset.c b/drivers/gpu/drm/i915/gt/selftest_reset.c
index 8a873f6bda7f..37c38bdd5f47 100644
--- a/drivers/gpu/drm/i915/gt/selftest_reset.c
+++ b/drivers/gpu/drm/i915/gt/selftest_reset.c
@@ -19,7 +19,7 @@ __igt_reset_stolen(struct intel_gt *gt,
  		   intel_engine_mask_t mask,
  		   const char *msg)
  {
-	struct i915_ggtt *ggtt = &gt->i915->ggtt;
+	struct i915_ggtt *ggtt = gt->ggtt;
  	const struct resource *dsm = &gt->i915->dsm;
  	resource_size_t num_pages, page;
  	struct intel_engine_cs *engine;
Reviewed-by : Sujaritha Sundaresan <sujaritha.sundaresan@xxxxxxxxx>



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