[Intel-gfx] [CI v2 1/3] drm/i915: Precompute can_sagv for each wm level

[Intel-gfx] [CI v2 1/3] drm/i915: Precompute can_sagv for each wm level

[Manasi Navare]

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

In order to remove intel_atomic_crtc_state_for_each_plane_state()
from skl_crtc_can_enable_sagv() we can simply precompute whether
each wm level can tolerate the SAGV block time latency or not.

This has the nice side benefit that we remove the duplicated
wm level latency calculation. In fact the copy of that code
we had in skl_crtc_can_enable_sagv() didn't even handle
WaIncreaseLatencyIPCEnabled/Display WA #1141 whereas the copy
in skl_compute_plane_wm() did. So now we just have the one
copy which handles all the w/as.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
---
 .../drm/i915/display/intel_display_types.h    |  1 +
 drivers/gpu/drm/i915/intel_pm.c               | 21 +++++++------------
 2 files changed, 9 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index 0c1df34a0cce..86de89d621d8 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -686,6 +686,7 @@ struct skl_wm_level {
 	u8 plane_res_l;
 	bool plane_en;
 	bool ignore_lines;
+	bool can_sagv;
 };
 
 struct skl_plane_wm {
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 5a04be58e0b9..6e64580a1a8c 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3873,9 +3873,7 @@ static bool skl_crtc_can_enable_sagv(const struct intel_crtc_state *crtc_state)
 {
 	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
 	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
-	struct intel_plane *plane;
-	const struct intel_plane_state *plane_state;
-	int level, latency;
+	enum plane_id plane_id;
 
 	if (!intel_has_sagv(dev_priv))
 		return false;
@@ -3886,9 +3884,10 @@ static bool skl_crtc_can_enable_sagv(const struct intel_crtc_state *crtc_state)
 	if (crtc_state->hw.pipe_mode.flags & DRM_MODE_FLAG_INTERLACE)
 		return false;
 
-	intel_atomic_crtc_state_for_each_plane_state(plane, plane_state, crtc_state) {
+	for_each_plane_id_on_crtc(crtc, plane_id) {
 		const struct skl_plane_wm *wm =
-			&crtc_state->wm.skl.optimal.planes[plane->id];
+			&crtc_state->wm.skl.optimal.planes[plane_id];
+		int level;
 
 		/* Skip this plane if it's not enabled */
 		if (!wm->wm[0].plane_en)
@@ -3899,19 +3898,12 @@ static bool skl_crtc_can_enable_sagv(const struct intel_crtc_state *crtc_state)
 		     !wm->wm[level].plane_en; --level)
 		     { }
 
-		latency = dev_priv->wm.skl_latency[level];
-
-		if (skl_needs_memory_bw_wa(dev_priv) &&
-		    plane_state->uapi.fb->modifier ==
-		    I915_FORMAT_MOD_X_TILED)
-			latency += 15;
-
 		/*
 		 * If any of the planes on this pipe don't enable wm levels that
 		 * incur memory latencies higher than sagv_block_time_us we
 		 * can't enable SAGV.
 		 */
-		if (latency < dev_priv->sagv_block_time_us)
+		if (!wm->wm[level].can_sagv)
 			return false;
 	}
 
@@ -5375,6 +5367,9 @@ static void skl_compute_plane_wm(const struct intel_crtc_state *crtc_state,
 	/* Bspec says: value >= plane ddb allocation -> invalid, hence the +1 here */
 	result->min_ddb_alloc = max(min_ddb_alloc, res_blocks) + 1;
 	result->plane_en = true;
+
+	if (INTEL_GEN(dev_priv) < 12)
+		result->can_sagv = latency >= dev_priv->sagv_block_time_us;
 }
 
 static void
-- 
2.19.1

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[Intel-gfx] [CI v2 2/3] drm/i915: Store plane relative data rate in crtc_state

[Manasi Navare]

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Store the relative data rate for planes in the crtc state
so that we don't have to use
intel_atomic_crtc_state_for_each_plane_state() to compute
it even for the planes that are no part of the current state.

Should probably just nuke this stuff entirely an use the normal
plane data rate instead. The two are slightly different since this
relative data rate doesn't factor in the actual pixel clock, so
it's a bit odd thing to even call a "data rate". And since the
watermarks are computed based on the actual data rate anyway
I don't really see what the point of this relative data rate
is. But that's for the future...

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
---
 .../drm/i915/display/intel_display_types.h    |  4 +
 drivers/gpu/drm/i915/intel_pm.c               | 83 ++++++++++---------
 2 files changed, 50 insertions(+), 37 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index 86de89d621d8..5bb7adc1ff3e 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -1031,6 +1031,10 @@ struct intel_crtc_state {
 
 	u32 data_rate[I915_MAX_PLANES];
 
+	/* FIXME unify with data_rate[] */
+	u64 plane_data_rate[I915_MAX_PLANES];
+	u64 uv_plane_data_rate[I915_MAX_PLANES];
+
 	/* Gamma mode programmed on the pipe */
 	u32 gamma_mode;
 
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 6e64580a1a8c..6ccacd07ab94 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4696,50 +4696,63 @@ skl_plane_relative_data_rate(const struct intel_crtc_state *crtc_state,
 }
 
 static u64
-skl_get_total_relative_data_rate(struct intel_crtc_state *crtc_state,
-				 u64 *plane_data_rate,
-				 u64 *uv_plane_data_rate)
+skl_get_total_relative_data_rate(struct intel_atomic_state *state,
+				 struct intel_crtc *crtc)
 {
-	struct intel_plane *plane;
+	struct intel_crtc_state *crtc_state =
+		intel_atomic_get_new_crtc_state(state, crtc);
 	const struct intel_plane_state *plane_state;
+	struct intel_plane *plane;
 	u64 total_data_rate = 0;
+	enum plane_id plane_id;
+	int i;
 
 	/* Calculate and cache data rate for each plane */
-	intel_atomic_crtc_state_for_each_plane_state(plane, plane_state, crtc_state) {
-		enum plane_id plane_id = plane->id;
-		u64 rate;
+	for_each_new_intel_plane_in_state(state, plane, plane_state, i) {
+		if (plane->pipe != crtc->pipe)
+			continue;
+
+		plane_id = plane->id;
 
 		/* packed/y */
-		rate = skl_plane_relative_data_rate(crtc_state, plane_state, 0);
-		plane_data_rate[plane_id] = rate;
-		total_data_rate += rate;
+		crtc_state->plane_data_rate[plane_id] =
+			skl_plane_relative_data_rate(crtc_state, plane_state, 0);
 
 		/* uv-plane */
-		rate = skl_plane_relative_data_rate(crtc_state, plane_state, 1);
-		uv_plane_data_rate[plane_id] = rate;
-		total_data_rate += rate;
+		crtc_state->uv_plane_data_rate[plane_id] =
+			skl_plane_relative_data_rate(crtc_state, plane_state, 1);
+	}
+
+	for_each_plane_id_on_crtc(crtc, plane_id) {
+		total_data_rate += crtc_state->plane_data_rate[plane_id];
+		total_data_rate += crtc_state->uv_plane_data_rate[plane_id];
 	}
 
 	return total_data_rate;
 }
 
 static u64
-icl_get_total_relative_data_rate(struct intel_crtc_state *crtc_state,
-				 u64 *plane_data_rate)
+icl_get_total_relative_data_rate(struct intel_atomic_state *state,
+				 struct intel_crtc *crtc)
 {
-	struct intel_plane *plane;
+	struct intel_crtc_state *crtc_state =
+		intel_atomic_get_new_crtc_state(state, crtc);
 	const struct intel_plane_state *plane_state;
+	struct intel_plane *plane;
 	u64 total_data_rate = 0;
+	enum plane_id plane_id;
+	int i;
 
 	/* Calculate and cache data rate for each plane */
-	intel_atomic_crtc_state_for_each_plane_state(plane, plane_state, crtc_state) {
-		enum plane_id plane_id = plane->id;
-		u64 rate;
+	for_each_new_intel_plane_in_state(state, plane, plane_state, i) {
+		if (plane->pipe != crtc->pipe)
+			continue;
+
+		plane_id = plane->id;
 
 		if (!plane_state->planar_linked_plane) {
-			rate = skl_plane_relative_data_rate(crtc_state, plane_state, 0);
-			plane_data_rate[plane_id] = rate;
-			total_data_rate += rate;
+			crtc_state->plane_data_rate[plane_id] =
+				skl_plane_relative_data_rate(crtc_state, plane_state, 0);
 		} else {
 			enum plane_id y_plane_id;
 
@@ -4754,17 +4767,18 @@ icl_get_total_relative_data_rate(struct intel_crtc_state *crtc_state,
 				continue;
 
 			/* Y plane rate is calculated on the slave */
-			rate = skl_plane_relative_data_rate(crtc_state, plane_state, 0);
 			y_plane_id = plane_state->planar_linked_plane->id;
-			plane_data_rate[y_plane_id] = rate;
-			total_data_rate += rate;
+			crtc_state->plane_data_rate[y_plane_id] =
+				skl_plane_relative_data_rate(crtc_state, plane_state, 0);
 
-			rate = skl_plane_relative_data_rate(crtc_state, plane_state, 1);
-			plane_data_rate[plane_id] = rate;
-			total_data_rate += rate;
+			crtc_state->plane_data_rate[plane_id] =
+				skl_plane_relative_data_rate(crtc_state, plane_state, 1);
 		}
 	}
 
+	for_each_plane_id_on_crtc(crtc, plane_id)
+		total_data_rate += crtc_state->plane_data_rate[plane_id];
+
 	return total_data_rate;
 }
 
@@ -4796,8 +4810,6 @@ skl_allocate_pipe_ddb(struct intel_atomic_state *state,
 	u64 total_data_rate;
 	enum plane_id plane_id;
 	int num_active;
-	u64 plane_data_rate[I915_MAX_PLANES] = {};
-	u64 uv_plane_data_rate[I915_MAX_PLANES] = {};
 	u32 blocks;
 	int level;
 	int ret;
@@ -4837,13 +4849,10 @@ skl_allocate_pipe_ddb(struct intel_atomic_state *state,
 
 	if (INTEL_GEN(dev_priv) >= 11)
 		total_data_rate =
-			icl_get_total_relative_data_rate(crtc_state,
-							 plane_data_rate);
+			icl_get_total_relative_data_rate(state, crtc);
 	else
 		total_data_rate =
-			skl_get_total_relative_data_rate(crtc_state,
-							 plane_data_rate,
-							 uv_plane_data_rate);
+			skl_get_total_relative_data_rate(state, crtc);
 
 	ret = skl_ddb_get_pipe_allocation_limits(dev_priv, crtc_state,
 						 total_data_rate,
@@ -4924,7 +4933,7 @@ skl_allocate_pipe_ddb(struct intel_atomic_state *state,
 		if (total_data_rate == 0)
 			break;
 
-		rate = plane_data_rate[plane_id];
+		rate = crtc_state->plane_data_rate[plane_id];
 		extra = min_t(u16, alloc_size,
 			      DIV64_U64_ROUND_UP(alloc_size * rate,
 						 total_data_rate));
@@ -4935,7 +4944,7 @@ skl_allocate_pipe_ddb(struct intel_atomic_state *state,
 		if (total_data_rate == 0)
 			break;
 
-		rate = uv_plane_data_rate[plane_id];
+		rate = crtc_state->uv_plane_data_rate[plane_id];
 		extra = min_t(u16, alloc_size,
 			      DIV64_U64_ROUND_UP(alloc_size * rate,
 						 total_data_rate));
-- 
2.19.1

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[Intel-gfx] [CI v2 3/3] drm/i915: Remove skl_adjusted_plane_pixel_rate()

[Manasi Navare]

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Replace skl_adjusted_plane_pixel_rate() with the generic
intel_plane_pixel_rate(). The two should produce identical
results.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
---
 drivers/gpu/drm/i915/intel_pm.c | 27 ++-------------------------
 1 file changed, 2 insertions(+), 25 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 6ccacd07ab94..a20b5051f18c 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -33,6 +33,7 @@
 #include <drm/drm_plane_helper.h>
 
 #include "display/intel_atomic.h"
+#include "display/intel_atomic_plane.h"
 #include "display/intel_bw.h"
 #include "display/intel_display_types.h"
 #include "display/intel_fbc.h"
@@ -5102,30 +5103,6 @@ intel_get_linetime_us(const struct intel_crtc_state *crtc_state)
 	return linetime_us;
 }
 
-static u32
-skl_adjusted_plane_pixel_rate(const struct intel_crtc_state *crtc_state,
-			      const struct intel_plane_state *plane_state)
-{
-	struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev);
-	u64 adjusted_pixel_rate;
-	uint_fixed_16_16_t downscale_amount;
-
-	/* Shouldn't reach here on disabled planes... */
-	if (drm_WARN_ON(&dev_priv->drm,
-			!intel_wm_plane_visible(crtc_state, plane_state)))
-		return 0;
-
-	/*
-	 * Adjusted plane pixel rate is just the pipe's adjusted pixel rate
-	 * with additional adjustments for plane-specific scaling.
-	 */
-	adjusted_pixel_rate = crtc_state->pixel_rate;
-	downscale_amount = skl_plane_downscale_amount(crtc_state, plane_state);
-
-	return mul_round_up_u32_fixed16(adjusted_pixel_rate,
-					    downscale_amount);
-}
-
 static int
 skl_compute_wm_params(const struct intel_crtc_state *crtc_state,
 		      int width, const struct drm_format_info *format,
@@ -5238,7 +5215,7 @@ skl_compute_plane_wm_params(const struct intel_crtc_state *crtc_state,
 	return skl_compute_wm_params(crtc_state, width,
 				     fb->format, fb->modifier,
 				     plane_state->hw.rotation,
-				     skl_adjusted_plane_pixel_rate(crtc_state, plane_state),
+				     intel_plane_pixel_rate(crtc_state, plane_state),
 				     wp, color_plane);
 }
 
-- 
2.19.1

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[Intel-gfx] ✗ Fi.CI.SPARSE: warning for series starting with [CI,v2,1/3] drm/i915: Precompute can_sagv for each wm level

[Patchwork]

== Series Details ==

Series: series starting with [CI,v2,1/3] drm/i915: Precompute can_sagv for each wm level
URL   : https://patchwork.freedesktop.org/series/83874/
State : warning

== Summary ==

$ dim sparse --fast origin/drm-tip
Sparse version: v0.6.2
Fast mode used, each commit won't be checked separately.
-
+drivers/gpu/drm/i915/gt/intel_reset.c:1312:5: warning: context imbalance in 'intel_gt_reset_trylock' - different lock contexts for basic block
+drivers/gpu/drm/i915/gt/selftest_reset.c:100:20:    expected void *in
+drivers/gpu/drm/i915/gt/selftest_reset.c:100:20:    got void [noderef] __iomem *[assigned] s
+drivers/gpu/drm/i915/gt/selftest_reset.c:100:20: warning: incorrect type in assignment (different address spaces)
+drivers/gpu/drm/i915/gt/selftest_reset.c:101:46:    expected void const *src
+drivers/gpu/drm/i915/gt/selftest_reset.c:101:46:    got void [noderef] __iomem *[assigned] s
+drivers/gpu/drm/i915/gt/selftest_reset.c:101:46: warning: incorrect type in argument 2 (different address spaces)
+drivers/gpu/drm/i915/gt/selftest_reset.c:136:20:    expected void *in
+drivers/gpu/drm/i915/gt/selftest_reset.c:136:20:    got void [noderef] __iomem *[assigned] s
+drivers/gpu/drm/i915/gt/selftest_reset.c:136:20: warning: incorrect type in assignment (different address spaces)
+drivers/gpu/drm/i915/gt/selftest_reset.c:137:46:    expected void const *src
+drivers/gpu/drm/i915/gt/selftest_reset.c:137:46:    got void [noderef] __iomem *[assigned] s
+drivers/gpu/drm/i915/gt/selftest_reset.c:137:46: warning: incorrect type in argument 2 (different address spaces)
+drivers/gpu/drm/i915/gt/selftest_reset.c:98:34:    expected unsigned int [usertype] *s
+drivers/gpu/drm/i915/gt/selftest_reset.c:98:34:    got void [noderef] __iomem *[assigned] s
+drivers/gpu/drm/i915/gt/selftest_reset.c:98:34: warning: incorrect type in argument 1 (different address spaces)
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'fwtable_read16' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'fwtable_read32' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'fwtable_read64' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'fwtable_read8' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'fwtable_write16' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'fwtable_write32' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'fwtable_write8' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen11_fwtable_read16' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen11_fwtable_read32' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen11_fwtable_read64' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen11_fwtable_read8' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen11_fwtable_write16' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen11_fwtable_write32' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen11_fwtable_write8' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen12_fwtable_read16' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen12_fwtable_read32' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen12_fwtable_read64' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen12_fwtable_read8' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen12_fwtable_write16' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen12_fwtable_write32' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen12_fwtable_write8' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen6_read16' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen6_read32' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen6_read64' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen6_read8' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen6_write16' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen6_write32' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen6_write8' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen8_write16' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen8_write32' - different lock contexts for basic block
+./include/linux/spinlock.h:409:9: warning: context imbalance in 'gen8_write8' - different lock contexts for basic block


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[Intel-gfx] ✓ Fi.CI.BAT: success for series starting with [CI,v2,1/3] drm/i915: Precompute can_sagv for each wm level

[Patchwork]

[-- Attachment #1.1: Type: text/plain, Size: 1508 bytes --]

== Series Details ==

Series: series starting with [CI,v2,1/3] drm/i915: Precompute can_sagv for each wm level
URL   : https://patchwork.freedesktop.org/series/83874/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_9334 -> Patchwork_18911
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18911/index.html

New tests
---------

  New tests have been introduced between CI_DRM_9334 and Patchwork_18911:

### New CI tests (1) ###

  * boot:
    - Statuses : 5 pass(s)
    - Exec time: [0.0] s

  


Changes
-------

  No changes found


Participating hosts (5 -> 5)
------------------------------

  No changes in participating hosts


Build changes
-------------

  * Linux: CI_DRM_9334 -> Patchwork_18911

  CI-20190529: 20190529
  CI_DRM_9334: 0dac74f48884712184124a106fca2fd8aa3ec4f1 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_5850: 9748a4a0f93d108955d374a866e60cb962da9b5d @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
  Patchwork_18911: e8020331e37c1dc93c153c5870df669716a63d5a @ git://anongit.freedesktop.org/gfx-ci/linux


== Linux commits ==

e8020331e37c drm/i915: Remove skl_adjusted_plane_pixel_rate()
0247253652f5 drm/i915: Store plane relative data rate in crtc_state
9f45cefbd3a5 drm/i915: Precompute can_sagv for each wm level

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_18911/index.html

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