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From: Deepak R Varma <mh12gx2825@gmail.com>
To: Zhenyu Wang <zhenyuw@linux.intel.com>,
	Zhi Wang <zhi.a.wang@intel.com>,
	Jani Nikula <jani.nikula@linux.intel.com>,
	Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
	Rodrigo Vivi <rodrigo.vivi@intel.com>,
	David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
	intel-gvt-dev@lists.freedesktop.org,
	intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
	linux-kernel@vger.kernel.org
Cc: mh12gx2825@gmail.com
Subject: [Intel-gfx] [PATCH] drm/i915/gvt: replace idr_init() by idr_init_base()
Date: Wed, 4 Nov 2020 17:45:32 +0530	[thread overview]
Message-ID: <20201104121532.GA48202@localhost> (raw)

idr_init() uses base 0 which is an invalid identifier. The new function
idr_init_base allows IDR to set the ID lookup from base 1. This avoids
all lookups that otherwise starts from 0 since 0 is always unused.

References: commit 6ce711f27500 ("idr: Make 1-based IDRs more efficient")

Signed-off-by: Deepak R Varma <mh12gx2825@gmail.com>
---
 drivers/gpu/drm/i915/gvt/gvt.c  | 2 +-
 drivers/gpu/drm/i915/gvt/vgpu.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/gvt/gvt.c b/drivers/gpu/drm/i915/gvt/gvt.c
index c7c561237883..45b492edbb19 100644
--- a/drivers/gpu/drm/i915/gvt/gvt.c
+++ b/drivers/gpu/drm/i915/gvt/gvt.c
@@ -312,7 +312,7 @@ int intel_gvt_init_device(struct drm_i915_private *i915)
 
 	gvt_dbg_core("init gvt device\n");
 
-	idr_init(&gvt->vgpu_idr);
+	idr_init_base(&gvt->vgpu_idr, 1);
 	spin_lock_init(&gvt->scheduler.mmio_context_lock);
 	mutex_init(&gvt->lock);
 	mutex_init(&gvt->sched_lock);
diff --git a/drivers/gpu/drm/i915/gvt/vgpu.c b/drivers/gpu/drm/i915/gvt/vgpu.c
index f6d7e33c7099..1c8e63f84134 100644
--- a/drivers/gpu/drm/i915/gvt/vgpu.c
+++ b/drivers/gpu/drm/i915/gvt/vgpu.c
@@ -393,7 +393,7 @@ static struct intel_vgpu *__intel_gvt_create_vgpu(struct intel_gvt *gvt,
 	mutex_init(&vgpu->dmabuf_lock);
 	INIT_LIST_HEAD(&vgpu->dmabuf_obj_list_head);
 	INIT_RADIX_TREE(&vgpu->page_track_tree, GFP_KERNEL);
-	idr_init(&vgpu->object_idr);
+	idr_init_base(&vgpu->object_idr, 1);
 	intel_vgpu_init_cfg_space(vgpu, param->primary);
 	vgpu->d3_entered = false;
 
-- 
2.25.1

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

WARNING: multiple messages have this Message-ID (diff)
From: Deepak R Varma <mh12gx2825@gmail.com>
To: Zhenyu Wang <zhenyuw@linux.intel.com>,
	Zhi Wang <zhi.a.wang@intel.com>,
	Jani Nikula <jani.nikula@linux.intel.com>,
	Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
	Rodrigo Vivi <rodrigo.vivi@intel.com>,
	David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
	intel-gvt-dev@lists.freedesktop.org,
	intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
	linux-kernel@vger.kernel.org
Cc: mh12gx2825@gmail.com
Subject: [PATCH] drm/i915/gvt: replace idr_init() by idr_init_base()
Date: Wed, 4 Nov 2020 17:45:32 +0530	[thread overview]
Message-ID: <20201104121532.GA48202@localhost> (raw)

idr_init() uses base 0 which is an invalid identifier. The new function
idr_init_base allows IDR to set the ID lookup from base 1. This avoids
all lookups that otherwise starts from 0 since 0 is always unused.

References: commit 6ce711f27500 ("idr: Make 1-based IDRs more efficient")

Signed-off-by: Deepak R Varma <mh12gx2825@gmail.com>
---
 drivers/gpu/drm/i915/gvt/gvt.c  | 2 +-
 drivers/gpu/drm/i915/gvt/vgpu.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/gvt/gvt.c b/drivers/gpu/drm/i915/gvt/gvt.c
index c7c561237883..45b492edbb19 100644
--- a/drivers/gpu/drm/i915/gvt/gvt.c
+++ b/drivers/gpu/drm/i915/gvt/gvt.c
@@ -312,7 +312,7 @@ int intel_gvt_init_device(struct drm_i915_private *i915)
 
 	gvt_dbg_core("init gvt device\n");
 
-	idr_init(&gvt->vgpu_idr);
+	idr_init_base(&gvt->vgpu_idr, 1);
 	spin_lock_init(&gvt->scheduler.mmio_context_lock);
 	mutex_init(&gvt->lock);
 	mutex_init(&gvt->sched_lock);
diff --git a/drivers/gpu/drm/i915/gvt/vgpu.c b/drivers/gpu/drm/i915/gvt/vgpu.c
index f6d7e33c7099..1c8e63f84134 100644
--- a/drivers/gpu/drm/i915/gvt/vgpu.c
+++ b/drivers/gpu/drm/i915/gvt/vgpu.c
@@ -393,7 +393,7 @@ static struct intel_vgpu *__intel_gvt_create_vgpu(struct intel_gvt *gvt,
 	mutex_init(&vgpu->dmabuf_lock);
 	INIT_LIST_HEAD(&vgpu->dmabuf_obj_list_head);
 	INIT_RADIX_TREE(&vgpu->page_track_tree, GFP_KERNEL);
-	idr_init(&vgpu->object_idr);
+	idr_init_base(&vgpu->object_idr, 1);
 	intel_vgpu_init_cfg_space(vgpu, param->primary);
 	vgpu->d3_entered = false;
 
-- 
2.25.1

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

WARNING: multiple messages have this Message-ID (diff)
From: Deepak R Varma <mh12gx2825@gmail.com>
To: Zhenyu Wang <zhenyuw@linux.intel.com>,
	Zhi Wang <zhi.a.wang@intel.com>,
	Jani Nikula <jani.nikula@linux.intel.com>,
	Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
	Rodrigo Vivi <rodrigo.vivi@intel.com>,
	David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
	intel-gvt-dev@lists.freedesktop.org,
	intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
	linux-kernel@vger.kernel.org
Cc: mh12gx2825@gmail.com
Subject: [PATCH] drm/i915/gvt: replace idr_init() by idr_init_base()
Date: Wed, 4 Nov 2020 17:45:32 +0530	[thread overview]
Message-ID: <20201104121532.GA48202@localhost> (raw)

idr_init() uses base 0 which is an invalid identifier. The new function
idr_init_base allows IDR to set the ID lookup from base 1. This avoids
all lookups that otherwise starts from 0 since 0 is always unused.

References: commit 6ce711f27500 ("idr: Make 1-based IDRs more efficient")

Signed-off-by: Deepak R Varma <mh12gx2825@gmail.com>
---
 drivers/gpu/drm/i915/gvt/gvt.c  | 2 +-
 drivers/gpu/drm/i915/gvt/vgpu.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/gvt/gvt.c b/drivers/gpu/drm/i915/gvt/gvt.c
index c7c561237883..45b492edbb19 100644
--- a/drivers/gpu/drm/i915/gvt/gvt.c
+++ b/drivers/gpu/drm/i915/gvt/gvt.c
@@ -312,7 +312,7 @@ int intel_gvt_init_device(struct drm_i915_private *i915)
 
 	gvt_dbg_core("init gvt device\n");
 
-	idr_init(&gvt->vgpu_idr);
+	idr_init_base(&gvt->vgpu_idr, 1);
 	spin_lock_init(&gvt->scheduler.mmio_context_lock);
 	mutex_init(&gvt->lock);
 	mutex_init(&gvt->sched_lock);
diff --git a/drivers/gpu/drm/i915/gvt/vgpu.c b/drivers/gpu/drm/i915/gvt/vgpu.c
index f6d7e33c7099..1c8e63f84134 100644
--- a/drivers/gpu/drm/i915/gvt/vgpu.c
+++ b/drivers/gpu/drm/i915/gvt/vgpu.c
@@ -393,7 +393,7 @@ static struct intel_vgpu *__intel_gvt_create_vgpu(struct intel_gvt *gvt,
 	mutex_init(&vgpu->dmabuf_lock);
 	INIT_LIST_HEAD(&vgpu->dmabuf_obj_list_head);
 	INIT_RADIX_TREE(&vgpu->page_track_tree, GFP_KERNEL);
-	idr_init(&vgpu->object_idr);
+	idr_init_base(&vgpu->object_idr, 1);
 	intel_vgpu_init_cfg_space(vgpu, param->primary);
 	vgpu->d3_entered = false;
 
-- 
2.25.1


             reply	other threads:[~2020-11-04 13:53 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-04 12:15 Deepak R Varma [this message]
2020-11-04 12:15 ` [PATCH] drm/i915/gvt: replace idr_init() by idr_init_base() Deepak R Varma
2020-11-04 12:15 ` Deepak R Varma
2020-11-04 14:58 ` [Intel-gfx] ✓ Fi.CI.BAT: success for " Patchwork
2020-11-04 18:25 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork
2020-11-11  2:14 ` [Intel-gfx] [PATCH] " Zhenyu Wang
2020-11-11  2:14   ` Zhenyu Wang
2020-11-11  2:14   ` Zhenyu Wang

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