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From: Nirmoy Das <nirmoy.aiemd@gmail.com>
To: dri-devel@lists.freedesktop.org
Cc: thellstrom@vmware.com, airlied@linux.ie, kenny.ho@amd.com,
	brian.welty@intel.com, amd-gfx@lists.freedesktop.org,
	nirmoy.das@amd.com, linux-graphics-maintainer@vmware.com,
	bskeggs@redhat.com, alexander.deucher@amd.com, sean@poorly.run,
	christian.koenig@amd.com, kraxel@redhat.com
Subject: [PATCH 6/8] drm/vram-helper: don't use ttm bo->offset v2
Date: Wed, 19 Feb 2020 14:53:20 +0100	[thread overview]
Message-ID: <20200219135322.56463-7-nirmoy.das@amd.com> (raw)
In-Reply-To: <20200219135322.56463-1-nirmoy.das@amd.com>

Calculate GEM VRAM bo's offset within vram-helper without depending on
bo->offset

Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
---
 drivers/gpu/drm/drm_gem_vram_helper.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_gem_vram_helper.c b/drivers/gpu/drm/drm_gem_vram_helper.c
index 92a11bb42365..3edf5f241c15 100644
--- a/drivers/gpu/drm/drm_gem_vram_helper.c
+++ b/drivers/gpu/drm/drm_gem_vram_helper.c
@@ -198,6 +198,21 @@ u64 drm_gem_vram_mmap_offset(struct drm_gem_vram_object *gbo)
 }
 EXPORT_SYMBOL(drm_gem_vram_mmap_offset);

+/**
+ * drm_gem_vram_pg_offset() - Returns a GEM VRAM object's page offset
+ * @gbo:	the GEM VRAM object
+ *
+ * Returns:
+ * The buffer object's page offset, or
+ * 0 with a warning when memory manager node of the buffer object is NULL
+ * */
+static s64 drm_gem_vram_pg_offset(struct drm_gem_vram_object *gbo)
+{
+	if (WARN_ON_ONCE(!gbo->bo.mem.mm_node))
+		return 0;
+	return gbo->bo.mem.start;
+}
+
 /**
  * drm_gem_vram_offset() - \
 	Returns a GEM VRAM object's offset in video memory
@@ -214,7 +229,7 @@ s64 drm_gem_vram_offset(struct drm_gem_vram_object *gbo)
 {
 	if (WARN_ON_ONCE(!gbo->pin_count))
 		return (s64)-ENODEV;
-	return gbo->bo.offset;
+	return drm_gem_vram_pg_offset(gbo) << PAGE_SHIFT;
 }
 EXPORT_SYMBOL(drm_gem_vram_offset);

--
2.25.0

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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: Nirmoy Das <nirmoy.aiemd@gmail.com>
To: dri-devel@lists.freedesktop.org
Cc: David1.Zhou@amd.com, thellstrom@vmware.com, airlied@linux.ie,
	kenny.ho@amd.com, brian.welty@intel.com,
	maarten.lankhorst@linux.intel.com, amd-gfx@lists.freedesktop.org,
	nirmoy.das@amd.com, linux-graphics-maintainer@vmware.com,
	bskeggs@redhat.com, daniel@ffwll.ch, alexander.deucher@amd.com,
	sean@poorly.run, christian.koenig@amd.com, kraxel@redhat.com
Subject: [PATCH 6/8] drm/vram-helper: don't use ttm bo->offset v2
Date: Wed, 19 Feb 2020 14:53:20 +0100	[thread overview]
Message-ID: <20200219135322.56463-7-nirmoy.das@amd.com> (raw)
In-Reply-To: <20200219135322.56463-1-nirmoy.das@amd.com>

Calculate GEM VRAM bo's offset within vram-helper without depending on
bo->offset

Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
---
 drivers/gpu/drm/drm_gem_vram_helper.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_gem_vram_helper.c b/drivers/gpu/drm/drm_gem_vram_helper.c
index 92a11bb42365..3edf5f241c15 100644
--- a/drivers/gpu/drm/drm_gem_vram_helper.c
+++ b/drivers/gpu/drm/drm_gem_vram_helper.c
@@ -198,6 +198,21 @@ u64 drm_gem_vram_mmap_offset(struct drm_gem_vram_object *gbo)
 }
 EXPORT_SYMBOL(drm_gem_vram_mmap_offset);

+/**
+ * drm_gem_vram_pg_offset() - Returns a GEM VRAM object's page offset
+ * @gbo:	the GEM VRAM object
+ *
+ * Returns:
+ * The buffer object's page offset, or
+ * 0 with a warning when memory manager node of the buffer object is NULL
+ * */
+static s64 drm_gem_vram_pg_offset(struct drm_gem_vram_object *gbo)
+{
+	if (WARN_ON_ONCE(!gbo->bo.mem.mm_node))
+		return 0;
+	return gbo->bo.mem.start;
+}
+
 /**
  * drm_gem_vram_offset() - \
 	Returns a GEM VRAM object's offset in video memory
@@ -214,7 +229,7 @@ s64 drm_gem_vram_offset(struct drm_gem_vram_object *gbo)
 {
 	if (WARN_ON_ONCE(!gbo->pin_count))
 		return (s64)-ENODEV;
-	return gbo->bo.offset;
+	return drm_gem_vram_pg_offset(gbo) << PAGE_SHIFT;
 }
 EXPORT_SYMBOL(drm_gem_vram_offset);

--
2.25.0

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

  parent reply	other threads:[~2020-02-19 16:18 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-19 13:53 [PATCH v3 0/8] do not store GPU address in TTM Nirmoy Das
2020-02-19 13:53 ` Nirmoy Das
2020-02-19 13:53 ` [PATCH 1/8] drm/amdgpu: move ttm bo->offset to amdgpu_bo Nirmoy Das
2020-02-19 13:53   ` Nirmoy Das
2020-02-21  1:14   ` Luben Tuikov
2020-02-21  1:14     ` Luben Tuikov
2020-02-19 13:53 ` [PATCH 2/8] drm/radeon: don't use ttm bo->offset Nirmoy Das
2020-02-19 13:53   ` Nirmoy Das
2020-02-21  1:19   ` Luben Tuikov
2020-02-21  1:19     ` Luben Tuikov
2020-02-21 13:27     ` Nirmoy
2020-02-19 13:53 ` [PATCH 3/8] drm/vmwgfx: " Nirmoy Das
2020-02-19 13:53   ` Nirmoy Das
2020-02-21  8:45   ` Thomas Hellström (VMware)
2020-02-21  8:45     ` Thomas Hellström (VMware)
2020-02-19 13:53 ` [PATCH 4/8] drm/nouveau: don't use ttm bo->offset v3 Nirmoy Das
2020-02-19 13:53   ` Nirmoy Das
2020-02-21  1:22   ` Luben Tuikov
2020-02-21  1:22     ` Luben Tuikov
2020-02-19 13:53 ` [PATCH 5/8] drm/qxl: don't use ttm bo->offset Nirmoy Das
2020-02-19 13:53   ` Nirmoy Das
2020-02-19 13:53 ` Nirmoy Das [this message]
2020-02-19 13:53   ` [PATCH 6/8] drm/vram-helper: don't use ttm bo->offset v2 Nirmoy Das
2020-02-20 18:09   ` Daniel Vetter
2020-02-20 18:09     ` Daniel Vetter
2020-02-20 18:29     ` Nirmoy
2020-02-20 18:29       ` Nirmoy
2020-02-21 11:02   ` Thomas Zimmermann
2020-02-21 11:02     ` Thomas Zimmermann
2020-02-19 13:53 ` [PATCH 7/8] drm/bochs: use drm_gem_vram_offset to get bo offset v2 Nirmoy Das
2020-02-19 13:53   ` Nirmoy Das
2020-02-20 18:11   ` Daniel Vetter
2020-02-20 18:11     ` Daniel Vetter
2020-02-19 13:53 ` [PATCH 8/8] drm/ttm: do not keep GPU dependent addresses Nirmoy Das
2020-02-19 13:53   ` Nirmoy Das
2020-02-21  8:48 ` [PATCH v3 0/8] do not store GPU address in TTM Thomas Hellström (VMware)
2020-02-21  8:48   ` Thomas Hellström (VMware)
2020-02-21 11:32   ` Nirmoy

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