Device specific platform support has been haphazard for Ion. There have
been several independent attempts and there are still objections to
what bindings exist right now. Just remove everything for a fresh start.
Signed-off-by: Laura Abbott <labbott@xxxxxxxxxx>
---
drivers/staging/android/ion/Kconfig | 35 ----
drivers/staging/android/ion/Makefile | 6 -
drivers/staging/android/ion/hisilicon/Kconfig | 5 -
drivers/staging/android/ion/hisilicon/Makefile | 1 -
drivers/staging/android/ion/hisilicon/hi6220_ion.c | 113 -------------
drivers/staging/android/ion/ion_dummy_driver.c | 156 -----------------
drivers/staging/android/ion/ion_of.c | 184 ---------------------
drivers/staging/android/ion/ion_of.h | 37 -----
drivers/staging/android/ion/tegra/Makefile | 1 -
drivers/staging/android/ion/tegra/tegra_ion.c | 80 ---------
10 files changed, 618 deletions(-)
delete mode 100644 drivers/staging/android/ion/hisilicon/Kconfig
delete mode 100644 drivers/staging/android/ion/hisilicon/Makefile
delete mode 100644 drivers/staging/android/ion/hisilicon/hi6220_ion.c
delete mode 100644 drivers/staging/android/ion/ion_dummy_driver.c
delete mode 100644 drivers/staging/android/ion/ion_of.c
delete mode 100644 drivers/staging/android/ion/ion_of.h
delete mode 100644 drivers/staging/android/ion/tegra/Makefile
delete mode 100644 drivers/staging/android/ion/tegra/tegra_ion.c
diff --git a/drivers/staging/android/ion/Kconfig b/drivers/staging/android/ion/Kconfig
index c8fb413..0c91b2b 100644
--- a/drivers/staging/android/ion/Kconfig
+++ b/drivers/staging/android/ion/Kconfig
@@ -17,38 +17,3 @@ config ION_TEST
Choose this option to create a device that can be used to test the
kernel and device side ION functions.
-config ION_DUMMY
- bool "Dummy Ion driver"
- depends on ION
- help
- Provides a dummy ION driver that registers the
- /dev/ion device and some basic heaps. This can
- be used for testing the ION infrastructure if
- one doesn't have access to hardware drivers that
- use ION.
-
-config ION_TEGRA
- tristate "Ion for Tegra"
- depends on ARCH_TEGRA && ION
- help
- Choose this option if you wish to use ion on an nVidia Tegra.
-
-config ION_HISI
- tristate "Ion for Hisilicon"
- depends on ARCH_HISI && ION
- select ION_OF
- help
- Choose this option if you wish to use ion on Hisilicon Platform.
-
-source "drivers/staging/android/ion/hisilicon/Kconfig"
-
-config ION_OF
- bool "Devicetree support for Ion"
- depends on ION && OF_ADDRESS
- help
- Provides base support for defining Ion heaps in devicetree
- and setting them up. Also includes functions for platforms
- to parse the devicetree and expand for their own custom
- extensions
-
- If using Ion and devicetree, you should say Y here
diff --git a/drivers/staging/android/ion/Makefile b/drivers/staging/android/ion/Makefile
index 5d630a0..9457090 100644
--- a/drivers/staging/android/ion/Makefile
+++ b/drivers/staging/android/ion/Makefile
@@ -5,9 +5,3 @@ obj-$(CONFIG_ION_TEST) += ion_test.o
ifdef CONFIG_COMPAT
obj-$(CONFIG_ION) += compat_ion.o
endif
-
-obj-$(CONFIG_ION_DUMMY) += ion_dummy_driver.o
-obj-$(CONFIG_ION_TEGRA) += tegra/
-obj-$(CONFIG_ION_HISI) += hisilicon/
-obj-$(CONFIG_ION_OF) += ion_of.o
-
diff --git a/drivers/staging/android/ion/hisilicon/Kconfig b/drivers/staging/android/ion/hisilicon/Kconfig
deleted file mode 100644
index 2b4bd07..0000000
--- a/drivers/staging/android/ion/hisilicon/Kconfig
+++ /dev/null
@@ -1,5 +0,0 @@
-config HI6220_ION
- bool "Hi6220 ION Driver"
- depends on ARCH_HISI && ION
- help
- Build the Hisilicon Hi6220 ion driver.
diff --git a/drivers/staging/android/ion/hisilicon/Makefile b/drivers/staging/android/ion/hisilicon/Makefile
deleted file mode 100644
index 2a89414..0000000
--- a/drivers/staging/android/ion/hisilicon/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-obj-$(CONFIG_HI6220_ION) += hi6220_ion.o
diff --git a/drivers/staging/android/ion/hisilicon/hi6220_ion.c b/drivers/staging/android/ion/hisilicon/hi6220_ion.c
deleted file mode 100644
index 0de7897..0000000
--- a/drivers/staging/android/ion/hisilicon/hi6220_ion.c
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- * Hisilicon Hi6220 ION Driver
- *
- * Copyright (c) 2015 Hisilicon Limited.
- *
- * Author: Chen Feng <puck.chen@xxxxxxxxxxxxx>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#define pr_fmt(fmt) "Ion: " fmt
-
-#include <linux/err.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/of.h>
-#include <linux/mm.h>
-#include "../ion_priv.h"
-#include "../ion.h"
-#include "../ion_of.h"
-
-struct hisi_ion_dev {
- struct ion_heap **heaps;
- struct ion_device *idev;
- struct ion_platform_data *data;
-};
-
-static struct ion_of_heap hisi_heaps[] = {
- PLATFORM_HEAP("hisilicon,sys_user", 0,
- ION_HEAP_TYPE_SYSTEM, "sys_user"),
- PLATFORM_HEAP("hisilicon,sys_contig", 1,
- ION_HEAP_TYPE_SYSTEM_CONTIG, "sys_contig"),
- PLATFORM_HEAP("hisilicon,cma", ION_HEAP_TYPE_DMA, ION_HEAP_TYPE_DMA,
- "cma"),
- {}
-};
-
-static int hi6220_ion_probe(struct platform_device *pdev)
-{
- struct hisi_ion_dev *ipdev;
- int i;
-
- ipdev = devm_kzalloc(&pdev->dev, sizeof(*ipdev), GFP_KERNEL);
- if (!ipdev)
- return -ENOMEM;
-
- platform_set_drvdata(pdev, ipdev);
-
- ipdev->idev = ion_device_create(NULL);
- if (IS_ERR(ipdev->idev))
- return PTR_ERR(ipdev->idev);
-
- ipdev->data = ion_parse_dt(pdev, hisi_heaps);
- if (IS_ERR(ipdev->data))
- return PTR_ERR(ipdev->data);
-
- ipdev->heaps = devm_kzalloc(&pdev->dev,
- sizeof(struct ion_heap) * ipdev->data->nr,
- GFP_KERNEL);
- if (!ipdev->heaps) {
- ion_destroy_platform_data(ipdev->data);
- return -ENOMEM;
- }
-
- for (i = 0; i < ipdev->data->nr; i++) {
- ipdev->heaps[i] = ion_heap_create(&ipdev->data->heaps[i]);
- if (!ipdev->heaps) {
- ion_destroy_platform_data(ipdev->data);
- return -ENOMEM;
- }
- ion_device_add_heap(ipdev->idev, ipdev->heaps[i]);
- }
- return 0;
-}
-
-static int hi6220_ion_remove(struct platform_device *pdev)
-{
- struct hisi_ion_dev *ipdev;
- int i;
-
- ipdev = platform_get_drvdata(pdev);
-
- for (i = 0; i < ipdev->data->nr; i++)
- ion_heap_destroy(ipdev->heaps[i]);
-
- ion_destroy_platform_data(ipdev->data);
- ion_device_destroy(ipdev->idev);
-
- return 0;
-}
-
-static const struct of_device_id hi6220_ion_match_table[] = {
- {.compatible = "hisilicon,hi6220-ion"},
- {},
-};
-
-static struct platform_driver hi6220_ion_driver = {
- .probe = hi6220_ion_probe,
- .remove = hi6220_ion_remove,
- .driver = {
- .name = "ion-hi6220",
- .of_match_table = hi6220_ion_match_table,
- },
-};
-
-static int __init hi6220_ion_init(void)
-{
- return platform_driver_register(&hi6220_ion_driver);
-}
-
-subsys_initcall(hi6220_ion_init);
diff --git a/drivers/staging/android/ion/ion_dummy_driver.c b/drivers/staging/android/ion/ion_dummy_driver.c
deleted file mode 100644
index cf5c010..0000000
--- a/drivers/staging/android/ion/ion_dummy_driver.c
+++ /dev/null
@@ -1,156 +0,0 @@
-/*
- * drivers/gpu/ion/ion_dummy_driver.c
- *
- * Copyright (C) 2013 Linaro, Inc
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- */
-
-#include <linux/err.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/bootmem.h>
-#include <linux/memblock.h>
-#include <linux/sizes.h>
-#include <linux/io.h>
-#include "ion.h"
-#include "ion_priv.h"
-
-static struct ion_device *idev;
-static struct ion_heap **heaps;
-
-static void *carveout_ptr;
-static void *chunk_ptr;
-
-static struct ion_platform_heap dummy_heaps[] = {
- {
- .id = ION_HEAP_TYPE_SYSTEM,
- .type = ION_HEAP_TYPE_SYSTEM,
- .name = "system",
- },
- {
- .id = ION_HEAP_TYPE_SYSTEM_CONTIG,
- .type = ION_HEAP_TYPE_SYSTEM_CONTIG,
- .name = "system contig",
- },
- {
- .id = ION_HEAP_TYPE_CARVEOUT,
- .type = ION_HEAP_TYPE_CARVEOUT,
- .name = "carveout",
- .size = SZ_4M,
- },
- {
- .id = ION_HEAP_TYPE_CHUNK,
- .type = ION_HEAP_TYPE_CHUNK,
- .name = "chunk",
- .size = SZ_4M,
- .align = SZ_16K,
- .priv = (void *)(SZ_16K),
- },
-};
-
-static const struct ion_platform_data dummy_ion_pdata = {
- .nr = ARRAY_SIZE(dummy_heaps),
- .heaps = dummy_heaps,
-};
-
-static int __init ion_dummy_init(void)
-{
- int i, err;
-
- idev = ion_device_create(NULL);
- if (IS_ERR(idev))
- return PTR_ERR(idev);
- heaps = kcalloc(dummy_ion_pdata.nr, sizeof(struct ion_heap *),
- GFP_KERNEL);
- if (!heaps)
- return -ENOMEM;
-
-
- /* Allocate a dummy carveout heap */
- carveout_ptr = alloc_pages_exact(
- dummy_heaps[ION_HEAP_TYPE_CARVEOUT].size,
- GFP_KERNEL);
- if (carveout_ptr)
- dummy_heaps[ION_HEAP_TYPE_CARVEOUT].base =
- virt_to_phys(carveout_ptr);
- else
- pr_err("ion_dummy: Could not allocate carveout\n");
-
- /* Allocate a dummy chunk heap */
- chunk_ptr = alloc_pages_exact(
- dummy_heaps[ION_HEAP_TYPE_CHUNK].size,
- GFP_KERNEL);
- if (chunk_ptr)
- dummy_heaps[ION_HEAP_TYPE_CHUNK].base = virt_to_phys(chunk_ptr);
- else
- pr_err("ion_dummy: Could not allocate chunk\n");
-
- for (i = 0; i < dummy_ion_pdata.nr; i++) {
- struct ion_platform_heap *heap_data = &dummy_ion_pdata.heaps[i];
-
- if (heap_data->type == ION_HEAP_TYPE_CARVEOUT &&
- !heap_data->base)
- continue;
-
- if (heap_data->type == ION_HEAP_TYPE_CHUNK && !heap_data->base)
- continue;
-
- heaps[i] = ion_heap_create(heap_data);
- if (IS_ERR_OR_NULL(heaps[i])) {
- err = PTR_ERR(heaps[i]);
- goto err;
- }
- ion_device_add_heap(idev, heaps[i]);
- }
- return 0;
-err:
- for (i = 0; i < dummy_ion_pdata.nr; ++i)
- ion_heap_destroy(heaps[i]);
- kfree(heaps);
-
- if (carveout_ptr) {
- free_pages_exact(carveout_ptr,
- dummy_heaps[ION_HEAP_TYPE_CARVEOUT].size);
- carveout_ptr = NULL;
- }
- if (chunk_ptr) {
- free_pages_exact(chunk_ptr,
- dummy_heaps[ION_HEAP_TYPE_CHUNK].size);
- chunk_ptr = NULL;
- }
- return err;
-}
-device_initcall(ion_dummy_init);
-
-static void __exit ion_dummy_exit(void)
-{
- int i;
-
- ion_device_destroy(idev);
-
- for (i = 0; i < dummy_ion_pdata.nr; i++)
- ion_heap_destroy(heaps[i]);
- kfree(heaps);
-
- if (carveout_ptr) {
- free_pages_exact(carveout_ptr,
- dummy_heaps[ION_HEAP_TYPE_CARVEOUT].size);
- carveout_ptr = NULL;
- }
- if (chunk_ptr) {
- free_pages_exact(chunk_ptr,
- dummy_heaps[ION_HEAP_TYPE_CHUNK].size);
- chunk_ptr = NULL;
- }
-}
-__exitcall(ion_dummy_exit);
diff --git a/drivers/staging/android/ion/ion_of.c b/drivers/staging/android/ion/ion_of.c
deleted file mode 100644
index 7791c70..0000000
--- a/drivers/staging/android/ion/ion_of.c
+++ /dev/null
@@ -1,184 +0,0 @@
-/*
- * Based on work from:
- * Andrew Andrianov <andrew@xxxxxxxxxx>
- * Google
- * The Linux Foundation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/of.h>
-#include <linux/of_platform.h>
-#include <linux/of_address.h>
-#include <linux/clk.h>
-#include <linux/dma-mapping.h>
-#include <linux/cma.h>
-#include <linux/dma-contiguous.h>
-#include <linux/io.h>
-#include <linux/of_reserved_mem.h>
-#include "ion.h"
-#include "ion_priv.h"
-#include "ion_of.h"
-
-static int ion_parse_dt_heap_common(struct device_node *heap_node,
- struct ion_platform_heap *heap,
- struct ion_of_heap *compatible)
-{
- int i;
-
- for (i = 0; compatible[i].name; i++) {
- if (of_device_is_compatible(heap_node, compatible[i].compat))
- break;
- }
-
- if (!compatible[i].name)
- return -ENODEV;
-
- heap->id = compatible[i].heap_id;
- heap->type = compatible[i].type;
- heap->name = compatible[i].name;
- heap->align = compatible[i].align;
-
- /* Some kind of callback function pointer? */
-
- pr_info("%s: id %d type %d name %s align %lx\n", __func__,
- heap->id, heap->type, heap->name, heap->align);
- return 0;
-}
-
-static int ion_setup_heap_common(struct platform_device *parent,
- struct device_node *heap_node,
- struct ion_platform_heap *heap)
-{
- int ret = 0;
-
- switch (heap->type) {
- case ION_HEAP_TYPE_CARVEOUT:
- case ION_HEAP_TYPE_CHUNK:
- if (heap->base && heap->size)
- return 0;
-
- ret = of_reserved_mem_device_init(heap->priv);
- break;
- default:
- break;
- }
-
- return ret;
-}
-
-struct ion_platform_data *ion_parse_dt(struct platform_device *pdev,
- struct ion_of_heap *compatible)
-{
- int num_heaps, ret;
- const struct device_node *dt_node = pdev->dev.of_node;
- struct device_node *node;
- struct ion_platform_heap *heaps;
- struct ion_platform_data *data;
- int i = 0;
-
- num_heaps = of_get_available_child_count(dt_node);
-
- if (!num_heaps)
- return ERR_PTR(-EINVAL);
-
- heaps = devm_kzalloc(&pdev->dev,
- sizeof(struct ion_platform_heap) * num_heaps,
- GFP_KERNEL);
- if (!heaps)
- return ERR_PTR(-ENOMEM);
-
- data = devm_kzalloc(&pdev->dev, sizeof(struct ion_platform_data),
- GFP_KERNEL);
- if (!data)
- return ERR_PTR(-ENOMEM);
-
- for_each_available_child_of_node(dt_node, node) {
- struct platform_device *heap_pdev;
-
- ret = ion_parse_dt_heap_common(node, &heaps[i], compatible);
- if (ret)
- return ERR_PTR(ret);
-
- heap_pdev = of_platform_device_create(node, heaps[i].name,
- &pdev->dev);
- if (!heap_pdev)
- return ERR_PTR(-ENOMEM);
- heap_pdev->dev.platform_data = &heaps[i];
-
- heaps[i].priv = &heap_pdev->dev;
-
- ret = ion_setup_heap_common(pdev, node, &heaps[i]);
- if (ret)
- goto out_err;
- i++;
- }
-
- data->heaps = heaps;
- data->nr = num_heaps;
- return data;
-
-out_err:
- for ( ; i >= 0; i--)
- if (heaps[i].priv)
- of_device_unregister(to_platform_device(heaps[i].priv));
-
- return ERR_PTR(ret);
-}
-
-void ion_destroy_platform_data(struct ion_platform_data *data)
-{
- int i;
-
- for (i = 0; i < data->nr; i++)
- if (data->heaps[i].priv)
- of_device_unregister(to_platform_device(
- data->heaps[i].priv));
-}
-
-#ifdef CONFIG_OF_RESERVED_MEM
-#include <linux/of.h>
-#include <linux/of_fdt.h>
-#include <linux/of_reserved_mem.h>
-
-static int rmem_ion_device_init(struct reserved_mem *rmem, struct device *dev)
-{
- struct platform_device *pdev = to_platform_device(dev);
- struct ion_platform_heap *heap = pdev->dev.platform_data;
-
- heap->base = rmem->base;
- heap->base = rmem->size;
- pr_debug("%s: heap %s base %pa size %pa dev %p\n", __func__,
- heap->name, &rmem->base, &rmem->size, dev);
- return 0;
-}
-
-static void rmem_ion_device_release(struct reserved_mem *rmem,
- struct device *dev)
-{
-}
-
-static const struct reserved_mem_ops rmem_dma_ops = {
- .device_init = rmem_ion_device_init,
- .device_release = rmem_ion_device_release,
-};
-
-static int __init rmem_ion_setup(struct reserved_mem *rmem)
-{
- phys_addr_t size = rmem->size;
-
- size = size / 1024;
-
- pr_info("Ion memory setup at %pa size %pa MiB\n",
- &rmem->base, &size);
- rmem->ops = &rmem_dma_ops;
- return 0;
-}
-
-RESERVEDMEM_OF_DECLARE(ion, "ion-region", rmem_ion_setup);
-#endif
diff --git a/drivers/staging/android/ion/ion_of.h b/drivers/staging/android/ion/ion_of.h
deleted file mode 100644
index 8241a17..0000000
--- a/drivers/staging/android/ion/ion_of.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * Based on work from:
- * Andrew Andrianov <andrew@xxxxxxxxxx>
- * Google
- * The Linux Foundation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef _ION_OF_H
-#define _ION_OF_H
-
-struct ion_of_heap {
- const char *compat;
- int heap_id;
- int type;
- const char *name;
- int align;
-};
-
-#define PLATFORM_HEAP(_compat, _id, _type, _name) \
-{ \
- .compat = _compat, \
- .heap_id = _id, \
- .type = _type, \
- .name = _name, \
- .align = PAGE_SIZE, \
-}
-
-struct ion_platform_data *ion_parse_dt(struct platform_device *pdev,
- struct ion_of_heap *compatible);
-
-void ion_destroy_platform_data(struct ion_platform_data *data);
-
-#endif
diff --git a/drivers/staging/android/ion/tegra/Makefile b/drivers/staging/android/ion/tegra/Makefile
deleted file mode 100644
index 808f1f5..0000000
--- a/drivers/staging/android/ion/tegra/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-obj-$(CONFIG_ION_TEGRA) += tegra_ion.o
diff --git a/drivers/staging/android/ion/tegra/tegra_ion.c b/drivers/staging/android/ion/tegra/tegra_ion.c
deleted file mode 100644
index 49e55e5..0000000
--- a/drivers/staging/android/ion/tegra/tegra_ion.c
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * drivers/gpu/tegra/tegra_ion.c
- *
- * Copyright (C) 2011 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- */
-
-#include <linux/err.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include "../ion.h"
-#include "../ion_priv.h"
-
-static struct ion_device *idev;
-static int num_heaps;
-static struct ion_heap **heaps;
-
-static int tegra_ion_probe(struct platform_device *pdev)
-{
- struct ion_platform_data *pdata = pdev->dev.platform_data;
- int err;
- int i;
-
- num_heaps = pdata->nr;
-
- heaps = devm_kcalloc(&pdev->dev, pdata->nr,
- sizeof(struct ion_heap *), GFP_KERNEL);
-
- idev = ion_device_create(NULL);
- if (IS_ERR(idev))
- return PTR_ERR(idev);
-
- /* create the heaps as specified in the board file */
- for (i = 0; i < num_heaps; i++) {
- struct ion_platform_heap *heap_data = &pdata->heaps[i];
-
- heaps[i] = ion_heap_create(heap_data);
- if (IS_ERR_OR_NULL(heaps[i])) {
- err = PTR_ERR(heaps[i]);
- goto err;
- }
- ion_device_add_heap(idev, heaps[i]);
- }
- platform_set_drvdata(pdev, idev);
- return 0;
-err:
- for (i = 0; i < num_heaps; ++i)
- ion_heap_destroy(heaps[i]);
- return err;
-}
-
-static int tegra_ion_remove(struct platform_device *pdev)
-{
- struct ion_device *idev = platform_get_drvdata(pdev);
- int i;
-
- ion_device_destroy(idev);
- for (i = 0; i < num_heaps; i++)
- ion_heap_destroy(heaps[i]);
- return 0;
-}
-
-static struct platform_driver ion_driver = {
- .probe = tegra_ion_probe,
- .remove = tegra_ion_remove,
- .driver = { .name = "ion-tegra" }
-};
-
-module_platform_driver(ion_driver);
-
--
2.7.4
