[PATCH 18/18] drm: Remove drm_global.{c,h}

From: Thomas Zimmermann <tzimmermann-l3A5Bk7waGM@public.gmane.org>
To: christian.koenig-5C7GfCeVMHo@public.gmane.org,
	ray.huang-5C7GfCeVMHo@public.gmane.org,
	Jerry.Zhang-5C7GfCeVMHo@public.gmane.org,
	alexander.deucher-5C7GfCeVMHo@public.gmane.org,
	David1.Zhou-5C7GfCeVMHo@public.gmane.org,
	airlied-cv59FeDIM0c@public.gmane.org,
	kraxel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
	bskeggs-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
	syeh-pghWNbHTmq7QT0dZR+AlfA@public.gmane.org,
	z.liuxinliang-C8/M+/jPZTeaMJb+Lgu22Q@public.gmane.org,
	zourongrong-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
	kong.kongxinwei-C8/M+/jPZTeaMJb+Lgu22Q@public.gmane.org,
	puck.chen-C8/M+/jPZTeaMJb+Lgu22Q@public.gmane.org
Cc: Thomas Zimmermann <tzimmermann-l3A5Bk7waGM@public.gmane.org>,
	amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org,
	dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Subject: [PATCH 18/18] drm: Remove drm_global.{c,h}
Date: Fri, 19 Oct 2018 10:54:23 +0200	[thread overview]
Message-ID: <20181019085423.28159-19-tzimmermann@suse.de> (raw)
In-Reply-To: <20181019085423.28159-1-tzimmermann-l3A5Bk7waGM@public.gmane.org>

The content of drm_global.{c,h} is obsolete. The functionality is provided
in ttm_global.{c,h}.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
---
 drivers/gpu/drm/Makefile         |   2 +-
 drivers/gpu/drm/drm_drv.c        |   2 -
 drivers/gpu/drm/drm_global.c     | 137 -------------------------------
 drivers/gpu/drm/gma500/psb_drv.h |   4 +-
 include/drm/drmP.h               |   1 -
 include/drm/drm_global.h         |  60 --------------
 6 files changed, 3 insertions(+), 203 deletions(-)
 delete mode 100644 drivers/gpu/drm/drm_global.c
 delete mode 100644 include/drm/drm_global.h

diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index 576ba985e138..7f3be3506057 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -11,7 +11,7 @@ drm-y       :=	drm_auth.o drm_bufs.o drm_cache.o \
 		drm_sysfs.o drm_hashtab.o drm_mm.o \
 		drm_crtc.o drm_fourcc.o drm_modes.o drm_edid.o \
 		drm_info.o drm_encoder_slave.o \
-		drm_trace_points.o drm_global.o drm_prime.o \
+		drm_trace_points.o drm_prime.o \
 		drm_rect.o drm_vma_manager.o drm_flip_work.o \
 		drm_modeset_lock.o drm_atomic.o drm_bridge.o \
 		drm_framebuffer.o drm_connector.o drm_blend.o \
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 36e8e9cbec52..fc29f46b7c32 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -975,14 +975,12 @@ static void drm_core_exit(void)
 	drm_sysfs_destroy();
 	idr_destroy(&drm_minors_idr);
 	drm_connector_ida_destroy();
-	drm_global_release();
 }
 
 static int __init drm_core_init(void)
 {
 	int ret;
 
-	drm_global_init();
 	drm_connector_ida_init();
 	idr_init(&drm_minors_idr);
 
diff --git a/drivers/gpu/drm/drm_global.c b/drivers/gpu/drm/drm_global.c
deleted file mode 100644
index 5799e2782dd1..000000000000
--- a/drivers/gpu/drm/drm_global.c
+++ /dev/null
@@ -1,137 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0 OR MIT
-/**************************************************************************
- *
- * Copyright 2008-2009 VMware, Inc., Palo Alto, CA., USA
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
- * USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-/*
- * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
- */
-
-#include <linux/mutex.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <drm/drm_global.h>
-
-struct drm_global_item {
-	struct mutex mutex;
-	void *object;
-	int refcount;
-};
-
-static struct drm_global_item glob[DRM_GLOBAL_NUM];
-
-void drm_global_init(void)
-{
-	int i;
-
-	for (i = 0; i < DRM_GLOBAL_NUM; ++i) {
-		struct drm_global_item *item = &glob[i];
-		mutex_init(&item->mutex);
-		item->object = NULL;
-		item->refcount = 0;
-	}
-}
-
-void drm_global_release(void)
-{
-	int i;
-	for (i = 0; i < DRM_GLOBAL_NUM; ++i) {
-		struct drm_global_item *item = &glob[i];
-		BUG_ON(item->object != NULL);
-		BUG_ON(item->refcount != 0);
-	}
-}
-
-/**
- * drm_global_item_ref - Initialize and acquire reference to memory
- * object
- * @ref: Object for initialization
- *
- * This initializes a memory object, allocating memory and calling the
- * .init() hook. Further calls will increase the reference count for
- * that item.
- *
- * Returns:
- * Zero on success, non-zero otherwise.
- */
-int drm_global_item_ref(struct drm_global_reference *ref)
-{
-	int ret = 0;
-	struct drm_global_item *item = &glob[ref->global_type];
-
-	mutex_lock(&item->mutex);
-	if (item->refcount == 0) {
-		ref->object = kzalloc(ref->size, GFP_KERNEL);
-		if (unlikely(ref->object == NULL)) {
-			ret = -ENOMEM;
-			goto error_unlock;
-		}
-		ret = ref->init(ref);
-		if (unlikely(ret != 0))
-			goto error_free;
-
-		item->object = ref->object;
-	} else {
-		ref->object = item->object;
-	}
-
-	++item->refcount;
-	mutex_unlock(&item->mutex);
-	return 0;
-
-error_free:
-	kfree(ref->object);
-	ref->object = NULL;
-error_unlock:
-	mutex_unlock(&item->mutex);
-	return ret;
-}
-EXPORT_SYMBOL(drm_global_item_ref);
-
-/**
- * drm_global_item_unref - Drop reference to memory
- * object
- * @ref: Object being removed
- *
- * Drop a reference to the memory object and eventually call the
- * release() hook.  The allocated object should be dropped in the
- * release() hook or before calling this function
- *
- */
-
-void drm_global_item_unref(struct drm_global_reference *ref)
-{
-	struct drm_global_item *item = &glob[ref->global_type];
-
-	mutex_lock(&item->mutex);
-	BUG_ON(item->refcount == 0);
-	BUG_ON(ref->object != item->object);
-	if (--item->refcount == 0) {
-		ref->release(ref);
-		item->object = NULL;
-	}
-	mutex_unlock(&item->mutex);
-}
-EXPORT_SYMBOL(drm_global_item_unref);
-
diff --git a/drivers/gpu/drm/gma500/psb_drv.h b/drivers/gpu/drm/gma500/psb_drv.h
index 941b238bdcc9..c4f084fdf630 100644
--- a/drivers/gpu/drm/gma500/psb_drv.h
+++ b/drivers/gpu/drm/gma500/psb_drv.h
@@ -444,7 +444,7 @@ struct drm_psb_private {
 	struct pci_dev *lpc_pdev; /* Currently only used by mrst */
 	const struct psb_ops *ops;
 	const struct psb_offset *regmap;
-	
+
 	struct child_device_config *child_dev;
 	int child_dev_num;
 
@@ -551,7 +551,7 @@ struct drm_psb_private {
 
 	/* Oaktrail HDMI state */
 	struct oaktrail_hdmi_dev *hdmi_priv;
-	
+
 	/* Register state */
 	struct psb_save_area regs;
 
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 05350424a4d3..2557001d1b21 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -68,7 +68,6 @@
 #include <drm/drm_agpsupport.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_fourcc.h>
-#include <drm/drm_global.h>
 #include <drm/drm_hashtab.h>
 #include <drm/drm_mm.h>
 #include <drm/drm_os_linux.h>
diff --git a/include/drm/drm_global.h b/include/drm/drm_global.h
deleted file mode 100644
index 63ffdcec6690..000000000000
--- a/include/drm/drm_global.h
+++ /dev/null
@@ -1,60 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2008-2009 VMware, Inc., Palo Alto, CA., USA
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
- * USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-/*
- * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
- */
-
-/*
- *  The interfaces in this file are deprecated. Please use ttm_global
- *  from <drm/ttm/ttm_global.h> instead.
- */
-
-#ifndef _DRM_GLOBAL_H_
-#define _DRM_GLOBAL_H_
-
-#include <linux/types.h>
-
-enum drm_global_types {
-	DRM_GLOBAL_TTM_MEM = 0,
-	DRM_GLOBAL_TTM_BO,
-	DRM_GLOBAL_NUM
-};
-
-struct drm_global_reference {
-	enum drm_global_types global_type;
-	size_t size;
-	void *object;
-	int (*init) (struct drm_global_reference *);
-	void (*release) (struct drm_global_reference *);
-};
-
-void drm_global_init(void);
-void drm_global_release(void);
-int drm_global_item_ref(struct drm_global_reference *ref);
-void drm_global_item_unref(struct drm_global_reference *ref);
-
-#endif
-- 
2.19.1

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