2006-11-22 18:47:00 -05:00
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/*
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* PS3 system bus driver.
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*
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* Copyright (C) 2006 Sony Computer Entertainment Inc.
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* Copyright 2006 Sony Corp.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/dma-mapping.h>
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#include <linux/err.h>
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#include <asm/udbg.h>
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#include <asm/lv1call.h>
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2006-11-27 13:18:57 -05:00
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#include <asm/firmware.h>
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2006-11-22 18:47:00 -05:00
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2007-01-30 18:20:27 -05:00
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#include "platform.h"
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2007-06-15 17:52:02 -04:00
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static struct device ps3_system_bus = {
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.bus_id = "ps3_system",
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};
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/* FIXME: need device usage counters! */
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struct {
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struct mutex mutex;
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int sb_11; /* usb 0 */
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int sb_12; /* usb 0 */
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int gpu;
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} static usage_hack;
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static int ps3_is_device(struct ps3_system_bus_device *dev,
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unsigned int bus_id, unsigned int dev_id)
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{
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return dev->bus_id == bus_id && dev->dev_id == dev_id;
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}
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static int ps3_open_hv_device_sb(struct ps3_system_bus_device *dev)
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{
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int result;
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BUG_ON(!dev->bus_id);
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mutex_lock(&usage_hack.mutex);
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if (ps3_is_device(dev, 1, 1)) {
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usage_hack.sb_11++;
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if (usage_hack.sb_11 > 1) {
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result = 0;
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goto done;
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}
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}
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if (ps3_is_device(dev, 1, 2)) {
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usage_hack.sb_12++;
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if (usage_hack.sb_12 > 1) {
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result = 0;
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goto done;
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}
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}
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result = lv1_open_device(dev->bus_id, dev->dev_id, 0);
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if (result) {
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pr_debug("%s:%d: lv1_open_device failed: %s\n", __func__,
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__LINE__, ps3_result(result));
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result = -EPERM;
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}
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done:
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mutex_unlock(&usage_hack.mutex);
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return result;
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}
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static int ps3_close_hv_device_sb(struct ps3_system_bus_device *dev)
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{
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int result;
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BUG_ON(!dev->bus_id);
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mutex_lock(&usage_hack.mutex);
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if (ps3_is_device(dev, 1, 1)) {
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usage_hack.sb_11--;
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if (usage_hack.sb_11) {
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result = 0;
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goto done;
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}
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}
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if (ps3_is_device(dev, 1, 2)) {
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usage_hack.sb_12--;
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if (usage_hack.sb_12) {
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result = 0;
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goto done;
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}
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}
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result = lv1_close_device(dev->bus_id, dev->dev_id);
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BUG_ON(result);
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done:
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mutex_unlock(&usage_hack.mutex);
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return result;
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}
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static int ps3_open_hv_device_gpu(struct ps3_system_bus_device *dev)
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{
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int result;
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mutex_lock(&usage_hack.mutex);
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usage_hack.gpu++;
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if (usage_hack.gpu > 1) {
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result = 0;
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goto done;
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}
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result = lv1_gpu_open(0);
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if (result) {
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pr_debug("%s:%d: lv1_gpu_open failed: %s\n", __func__,
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__LINE__, ps3_result(result));
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result = -EPERM;
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}
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done:
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mutex_unlock(&usage_hack.mutex);
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return result;
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}
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static int ps3_close_hv_device_gpu(struct ps3_system_bus_device *dev)
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{
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int result;
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mutex_lock(&usage_hack.mutex);
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usage_hack.gpu--;
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if (usage_hack.gpu) {
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result = 0;
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goto done;
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}
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result = lv1_gpu_close();
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BUG_ON(result);
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done:
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mutex_unlock(&usage_hack.mutex);
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return result;
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}
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int ps3_open_hv_device(struct ps3_system_bus_device *dev)
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{
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BUG_ON(!dev);
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pr_debug("%s:%d: match_id: %u\n", __func__, __LINE__, dev->match_id);
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switch (dev->match_id) {
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case PS3_MATCH_ID_EHCI:
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case PS3_MATCH_ID_OHCI:
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case PS3_MATCH_ID_GELIC:
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case PS3_MATCH_ID_STOR_DISK:
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case PS3_MATCH_ID_STOR_ROM:
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case PS3_MATCH_ID_STOR_FLASH:
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return ps3_open_hv_device_sb(dev);
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case PS3_MATCH_ID_SOUND:
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case PS3_MATCH_ID_GRAPHICS:
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return ps3_open_hv_device_gpu(dev);
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case PS3_MATCH_ID_AV_SETTINGS:
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case PS3_MATCH_ID_SYSTEM_MANAGER:
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pr_debug("%s:%d: unsupported match_id: %u\n", __func__,
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__LINE__, dev->match_id);
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pr_debug("%s:%d: bus_id: %u\n", __func__,
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__LINE__, dev->bus_id);
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BUG();
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return -EINVAL;
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default:
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break;
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}
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pr_debug("%s:%d: unknown match_id: %u\n", __func__, __LINE__,
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dev->match_id);
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BUG();
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return -ENODEV;
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}
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EXPORT_SYMBOL_GPL(ps3_open_hv_device);
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int ps3_close_hv_device(struct ps3_system_bus_device *dev)
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{
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BUG_ON(!dev);
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pr_debug("%s:%d: match_id: %u\n", __func__, __LINE__, dev->match_id);
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switch (dev->match_id) {
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case PS3_MATCH_ID_EHCI:
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case PS3_MATCH_ID_OHCI:
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case PS3_MATCH_ID_GELIC:
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case PS3_MATCH_ID_STOR_DISK:
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case PS3_MATCH_ID_STOR_ROM:
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case PS3_MATCH_ID_STOR_FLASH:
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return ps3_close_hv_device_sb(dev);
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case PS3_MATCH_ID_SOUND:
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case PS3_MATCH_ID_GRAPHICS:
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return ps3_close_hv_device_gpu(dev);
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case PS3_MATCH_ID_AV_SETTINGS:
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case PS3_MATCH_ID_SYSTEM_MANAGER:
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pr_debug("%s:%d: unsupported match_id: %u\n", __func__,
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__LINE__, dev->match_id);
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pr_debug("%s:%d: bus_id: %u\n", __func__,
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__LINE__, dev->bus_id);
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BUG();
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return -EINVAL;
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default:
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break;
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}
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pr_debug("%s:%d: unknown match_id: %u\n", __func__, __LINE__,
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dev->match_id);
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BUG();
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return -ENODEV;
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}
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EXPORT_SYMBOL_GPL(ps3_close_hv_device);
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2006-11-22 18:47:00 -05:00
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#define dump_mmio_region(_a) _dump_mmio_region(_a, __func__, __LINE__)
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static void _dump_mmio_region(const struct ps3_mmio_region* r,
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const char* func, int line)
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{
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2007-06-15 17:52:02 -04:00
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pr_debug("%s:%d: dev %u:%u\n", func, line, r->dev->bus_id,
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r->dev->dev_id);
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2006-11-22 18:47:00 -05:00
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pr_debug("%s:%d: bus_addr %lxh\n", func, line, r->bus_addr);
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pr_debug("%s:%d: len %lxh\n", func, line, r->len);
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pr_debug("%s:%d: lpar_addr %lxh\n", func, line, r->lpar_addr);
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}
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2007-06-15 17:52:02 -04:00
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static int ps3_sb_mmio_region_create(struct ps3_mmio_region *r)
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2006-11-22 18:47:00 -05:00
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{
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int result;
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2007-06-15 17:52:02 -04:00
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result = lv1_map_device_mmio_region(r->dev->bus_id, r->dev->dev_id,
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2006-11-22 18:47:00 -05:00
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r->bus_addr, r->len, r->page_size, &r->lpar_addr);
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if (result) {
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pr_debug("%s:%d: lv1_map_device_mmio_region failed: %s\n",
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__func__, __LINE__, ps3_result(result));
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2007-01-26 22:07:54 -05:00
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r->lpar_addr = 0;
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2006-11-22 18:47:00 -05:00
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}
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dump_mmio_region(r);
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return result;
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}
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2007-06-15 17:52:02 -04:00
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static int ps3_ioc0_mmio_region_create(struct ps3_mmio_region *r)
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{
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/* device specific; do nothing currently */
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return 0;
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}
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int ps3_mmio_region_create(struct ps3_mmio_region *r)
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{
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return r->mmio_ops->create(r);
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}
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2007-02-09 11:05:27 -05:00
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EXPORT_SYMBOL_GPL(ps3_mmio_region_create);
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2006-11-22 18:47:00 -05:00
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2007-06-15 17:52:02 -04:00
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static int ps3_sb_free_mmio_region(struct ps3_mmio_region *r)
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2006-11-22 18:47:00 -05:00
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{
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int result;
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2007-06-15 17:52:02 -04:00
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dump_mmio_region(r);
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;
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result = lv1_unmap_device_mmio_region(r->dev->bus_id, r->dev->dev_id,
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2007-01-26 22:07:54 -05:00
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r->lpar_addr);
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2006-11-22 18:47:00 -05:00
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if (result)
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pr_debug("%s:%d: lv1_unmap_device_mmio_region failed: %s\n",
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__func__, __LINE__, ps3_result(result));
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2007-01-26 22:07:54 -05:00
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r->lpar_addr = 0;
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2006-11-22 18:47:00 -05:00
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return result;
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}
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2007-06-15 17:52:02 -04:00
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static int ps3_ioc0_free_mmio_region(struct ps3_mmio_region *r)
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{
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/* device specific; do nothing currently */
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return 0;
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}
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int ps3_free_mmio_region(struct ps3_mmio_region *r)
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{
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return r->mmio_ops->free(r);
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}
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2007-02-09 11:05:27 -05:00
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EXPORT_SYMBOL_GPL(ps3_free_mmio_region);
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2006-11-22 18:47:00 -05:00
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2007-06-15 17:52:02 -04:00
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static const struct ps3_mmio_region_ops ps3_mmio_sb_region_ops = {
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.create = ps3_sb_mmio_region_create,
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.free = ps3_sb_free_mmio_region
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};
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static const struct ps3_mmio_region_ops ps3_mmio_ioc0_region_ops = {
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.create = ps3_ioc0_mmio_region_create,
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.free = ps3_ioc0_free_mmio_region
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};
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int ps3_mmio_region_init(struct ps3_system_bus_device *dev,
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struct ps3_mmio_region *r, unsigned long bus_addr, unsigned long len,
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enum ps3_mmio_page_size page_size)
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{
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r->dev = dev;
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r->bus_addr = bus_addr;
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r->len = len;
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r->page_size = page_size;
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switch (dev->dev_type) {
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case PS3_DEVICE_TYPE_SB:
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r->mmio_ops = &ps3_mmio_sb_region_ops;
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break;
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case PS3_DEVICE_TYPE_IOC0:
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r->mmio_ops = &ps3_mmio_ioc0_region_ops;
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break;
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default:
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BUG();
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return -EINVAL;
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}
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return 0;
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}
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|
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EXPORT_SYMBOL_GPL(ps3_mmio_region_init);
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|
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|
2006-11-22 18:47:00 -05:00
|
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static int ps3_system_bus_match(struct device *_dev,
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|
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struct device_driver *_drv)
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|
|
|
{
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|
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int result;
|
2007-06-15 17:52:02 -04:00
|
|
|
struct ps3_system_bus_driver *drv = ps3_drv_to_system_bus_drv(_drv);
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struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
|
2006-11-22 18:47:00 -05:00
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result = dev->match_id == drv->match_id;
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pr_info("%s:%d: dev=%u(%s), drv=%u(%s): %s\n", __func__, __LINE__,
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|
|
dev->match_id, dev->core.bus_id, drv->match_id, drv->core.name,
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|
|
(result ? "match" : "miss"));
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int ps3_system_bus_probe(struct device *_dev)
|
|
|
|
{
|
2007-06-15 17:52:02 -04:00
|
|
|
int result = 0;
|
|
|
|
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
|
|
|
|
struct ps3_system_bus_driver *drv;
|
2006-11-22 18:47:00 -05:00
|
|
|
|
2007-06-15 17:52:02 -04:00
|
|
|
BUG_ON(!dev);
|
|
|
|
pr_info(" -> %s:%d: %s\n", __func__, __LINE__, _dev->bus_id);
|
2006-11-22 18:47:00 -05:00
|
|
|
|
2007-06-15 17:52:02 -04:00
|
|
|
drv = ps3_system_bus_dev_to_system_bus_drv(dev);
|
2006-11-22 18:47:00 -05:00
|
|
|
BUG_ON(!drv);
|
|
|
|
|
|
|
|
if (drv->probe)
|
|
|
|
result = drv->probe(dev);
|
|
|
|
else
|
|
|
|
pr_info("%s:%d: %s no probe method\n", __func__, __LINE__,
|
|
|
|
dev->core.bus_id);
|
|
|
|
|
2007-06-15 17:52:02 -04:00
|
|
|
pr_info(" <- %s:%d: %s\n", __func__, __LINE__, dev->core.bus_id);
|
2006-11-22 18:47:00 -05:00
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int ps3_system_bus_remove(struct device *_dev)
|
|
|
|
{
|
2007-06-15 17:52:02 -04:00
|
|
|
int result = 0;
|
|
|
|
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
|
|
|
|
struct ps3_system_bus_driver *drv;
|
|
|
|
|
|
|
|
BUG_ON(!dev);
|
|
|
|
pr_info(" -> %s:%d: %s\n", __func__, __LINE__, _dev->bus_id);
|
|
|
|
|
|
|
|
drv = ps3_system_bus_dev_to_system_bus_drv(dev);
|
|
|
|
BUG_ON(!drv);
|
2006-11-22 18:47:00 -05:00
|
|
|
|
|
|
|
if (drv->remove)
|
2007-06-15 17:52:02 -04:00
|
|
|
result = drv->remove(dev);
|
2006-11-22 18:47:00 -05:00
|
|
|
else
|
2007-06-15 17:52:02 -04:00
|
|
|
dev_dbg(&dev->core, "%s:%d %s: no remove method\n",
|
|
|
|
__func__, __LINE__, drv->core.name);
|
|
|
|
|
|
|
|
pr_info(" <- %s:%d: %s\n", __func__, __LINE__, dev->core.bus_id);
|
|
|
|
return result;
|
|
|
|
}
|
2006-11-22 18:47:00 -05:00
|
|
|
|
2007-06-15 17:52:02 -04:00
|
|
|
static void ps3_system_bus_shutdown(struct device *_dev)
|
|
|
|
{
|
|
|
|
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
|
|
|
|
struct ps3_system_bus_driver *drv;
|
2006-11-22 18:47:00 -05:00
|
|
|
|
2007-06-15 17:52:02 -04:00
|
|
|
BUG_ON(!dev);
|
|
|
|
|
|
|
|
dev_dbg(&dev->core, " -> %s:%d: match_id %d\n", __func__, __LINE__,
|
|
|
|
dev->match_id);
|
|
|
|
|
|
|
|
if (!dev->core.driver) {
|
|
|
|
dev_dbg(&dev->core, "%s:%d: no driver bound\n", __func__,
|
|
|
|
__LINE__);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
drv = ps3_system_bus_dev_to_system_bus_drv(dev);
|
|
|
|
|
|
|
|
BUG_ON(!drv);
|
|
|
|
|
|
|
|
dev_dbg(&dev->core, "%s:%d: %s -> %s\n", __func__, __LINE__,
|
|
|
|
dev->core.bus_id, drv->core.name);
|
|
|
|
|
|
|
|
if (drv->shutdown)
|
|
|
|
drv->shutdown(dev);
|
|
|
|
else if (drv->remove) {
|
|
|
|
dev_dbg(&dev->core, "%s:%d %s: no shutdown, calling remove\n",
|
|
|
|
__func__, __LINE__, drv->core.name);
|
|
|
|
drv->remove(dev);
|
|
|
|
} else {
|
|
|
|
dev_dbg(&dev->core, "%s:%d %s: no shutdown method\n",
|
|
|
|
__func__, __LINE__, drv->core.name);
|
|
|
|
BUG();
|
|
|
|
}
|
|
|
|
|
|
|
|
dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);
|
2006-11-22 18:47:00 -05:00
|
|
|
}
|
|
|
|
|
2007-06-15 17:55:14 -04:00
|
|
|
static int ps3_system_bus_uevent(struct device *_dev, char **envp,
|
|
|
|
int num_envp, char *buffer, int buffer_size)
|
|
|
|
{
|
|
|
|
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
|
|
|
|
int i = 0, length = 0;
|
|
|
|
|
|
|
|
if (add_uevent_var(envp, num_envp, &i, buffer, buffer_size,
|
|
|
|
&length, "MODALIAS=ps3:%d",
|
|
|
|
dev->match_id))
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
envp[i] = NULL;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2007-06-15 17:55:20 -04:00
|
|
|
static ssize_t modalias_show(struct device *_dev, struct device_attribute *a,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
|
|
|
|
int len = snprintf(buf, PAGE_SIZE, "ps3:%d\n", dev->match_id);
|
|
|
|
|
|
|
|
return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct device_attribute ps3_system_bus_dev_attrs[] = {
|
|
|
|
__ATTR_RO(modalias),
|
|
|
|
__ATTR_NULL,
|
|
|
|
};
|
|
|
|
|
2006-11-22 18:47:00 -05:00
|
|
|
struct bus_type ps3_system_bus_type = {
|
2007-01-30 18:20:27 -05:00
|
|
|
.name = "ps3_system_bus",
|
2006-11-22 18:47:00 -05:00
|
|
|
.match = ps3_system_bus_match,
|
2007-06-15 17:55:14 -04:00
|
|
|
.uevent = ps3_system_bus_uevent,
|
2006-11-22 18:47:00 -05:00
|
|
|
.probe = ps3_system_bus_probe,
|
|
|
|
.remove = ps3_system_bus_remove,
|
2007-06-15 17:52:02 -04:00
|
|
|
.shutdown = ps3_system_bus_shutdown,
|
2007-06-15 17:55:20 -04:00
|
|
|
.dev_attrs = ps3_system_bus_dev_attrs,
|
2006-11-22 18:47:00 -05:00
|
|
|
};
|
|
|
|
|
2007-06-15 17:52:02 -04:00
|
|
|
static int __init ps3_system_bus_init(void)
|
2006-11-22 18:47:00 -05:00
|
|
|
{
|
|
|
|
int result;
|
|
|
|
|
2006-11-27 13:18:57 -05:00
|
|
|
if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
|
2007-03-09 18:05:38 -05:00
|
|
|
return -ENODEV;
|
2006-11-27 13:18:57 -05:00
|
|
|
|
2007-06-15 17:52:02 -04:00
|
|
|
pr_debug(" -> %s:%d\n", __func__, __LINE__);
|
|
|
|
|
|
|
|
mutex_init(&usage_hack.mutex);
|
|
|
|
|
|
|
|
result = device_register(&ps3_system_bus);
|
|
|
|
BUG_ON(result);
|
|
|
|
|
2006-11-22 18:47:00 -05:00
|
|
|
result = bus_register(&ps3_system_bus_type);
|
|
|
|
BUG_ON(result);
|
2007-06-15 17:52:02 -04:00
|
|
|
|
|
|
|
pr_debug(" <- %s:%d\n", __func__, __LINE__);
|
2006-11-22 18:47:00 -05:00
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
core_initcall(ps3_system_bus_init);
|
|
|
|
|
|
|
|
/* Allocates a contiguous real buffer and creates mappings over it.
|
|
|
|
* Returns the virtual address of the buffer and sets dma_handle
|
|
|
|
* to the dma address (mapping) of the first page.
|
|
|
|
*/
|
|
|
|
static void * ps3_alloc_coherent(struct device *_dev, size_t size,
|
2007-06-15 17:52:02 -04:00
|
|
|
dma_addr_t *dma_handle, gfp_t flag)
|
2006-11-22 18:47:00 -05:00
|
|
|
{
|
|
|
|
int result;
|
2007-06-15 17:52:02 -04:00
|
|
|
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
|
2006-11-22 18:47:00 -05:00
|
|
|
unsigned long virt_addr;
|
|
|
|
|
|
|
|
flag &= ~(__GFP_DMA | __GFP_HIGHMEM);
|
|
|
|
flag |= __GFP_ZERO;
|
|
|
|
|
|
|
|
virt_addr = __get_free_pages(flag, get_order(size));
|
|
|
|
|
|
|
|
if (!virt_addr) {
|
|
|
|
pr_debug("%s:%d: get_free_pages failed\n", __func__, __LINE__);
|
|
|
|
goto clean_none;
|
|
|
|
}
|
|
|
|
|
2007-06-15 17:52:02 -04:00
|
|
|
result = ps3_dma_map(dev->d_region, virt_addr, size, dma_handle,
|
|
|
|
IOPTE_PP_W | IOPTE_PP_R | IOPTE_SO_RW | IOPTE_M);
|
2006-11-22 18:47:00 -05:00
|
|
|
|
|
|
|
if (result) {
|
|
|
|
pr_debug("%s:%d: ps3_dma_map failed (%d)\n",
|
|
|
|
__func__, __LINE__, result);
|
|
|
|
BUG_ON("check region type");
|
|
|
|
goto clean_alloc;
|
|
|
|
}
|
|
|
|
|
|
|
|
return (void*)virt_addr;
|
|
|
|
|
|
|
|
clean_alloc:
|
|
|
|
free_pages(virt_addr, get_order(size));
|
|
|
|
clean_none:
|
|
|
|
dma_handle = NULL;
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void ps3_free_coherent(struct device *_dev, size_t size, void *vaddr,
|
|
|
|
dma_addr_t dma_handle)
|
|
|
|
{
|
2007-06-15 17:52:02 -04:00
|
|
|
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
|
2006-11-22 18:47:00 -05:00
|
|
|
|
|
|
|
ps3_dma_unmap(dev->d_region, dma_handle, size);
|
|
|
|
free_pages((unsigned long)vaddr, get_order(size));
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Creates TCEs for a user provided buffer. The user buffer must be
|
|
|
|
* contiguous real kernel storage (not vmalloc). The address of the buffer
|
|
|
|
* passed here is the kernel (virtual) address of the buffer. The buffer
|
|
|
|
* need not be page aligned, the dma_addr_t returned will point to the same
|
|
|
|
* byte within the page as vaddr.
|
|
|
|
*/
|
|
|
|
|
2007-06-15 17:52:02 -04:00
|
|
|
static dma_addr_t ps3_sb_map_single(struct device *_dev, void *ptr, size_t size,
|
2006-11-22 18:47:00 -05:00
|
|
|
enum dma_data_direction direction)
|
|
|
|
{
|
2007-06-15 17:52:02 -04:00
|
|
|
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
|
2006-11-22 18:47:00 -05:00
|
|
|
int result;
|
|
|
|
unsigned long bus_addr;
|
|
|
|
|
|
|
|
result = ps3_dma_map(dev->d_region, (unsigned long)ptr, size,
|
2007-06-15 17:52:02 -04:00
|
|
|
&bus_addr,
|
|
|
|
IOPTE_PP_R | IOPTE_PP_W | IOPTE_SO_RW | IOPTE_M);
|
2006-11-22 18:47:00 -05:00
|
|
|
|
|
|
|
if (result) {
|
|
|
|
pr_debug("%s:%d: ps3_dma_map failed (%d)\n",
|
|
|
|
__func__, __LINE__, result);
|
|
|
|
}
|
|
|
|
|
|
|
|
return bus_addr;
|
|
|
|
}
|
|
|
|
|
2007-06-15 17:52:02 -04:00
|
|
|
static dma_addr_t ps3_ioc0_map_single(struct device *_dev, void *ptr,
|
|
|
|
size_t size,
|
|
|
|
enum dma_data_direction direction)
|
|
|
|
{
|
|
|
|
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
|
|
|
|
int result;
|
|
|
|
unsigned long bus_addr;
|
|
|
|
u64 iopte_flag;
|
|
|
|
|
|
|
|
iopte_flag = IOPTE_M;
|
|
|
|
switch (direction) {
|
|
|
|
case DMA_BIDIRECTIONAL:
|
|
|
|
iopte_flag |= IOPTE_PP_R | IOPTE_PP_W | IOPTE_SO_RW;
|
|
|
|
break;
|
|
|
|
case DMA_TO_DEVICE:
|
|
|
|
iopte_flag |= IOPTE_PP_R | IOPTE_SO_R;
|
|
|
|
break;
|
|
|
|
case DMA_FROM_DEVICE:
|
|
|
|
iopte_flag |= IOPTE_PP_W | IOPTE_SO_RW;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
/* not happned */
|
|
|
|
BUG();
|
|
|
|
};
|
|
|
|
result = ps3_dma_map(dev->d_region, (unsigned long)ptr, size,
|
|
|
|
&bus_addr, iopte_flag);
|
|
|
|
|
|
|
|
if (result) {
|
|
|
|
pr_debug("%s:%d: ps3_dma_map failed (%d)\n",
|
|
|
|
__func__, __LINE__, result);
|
|
|
|
}
|
|
|
|
return bus_addr;
|
|
|
|
}
|
|
|
|
|
2006-11-22 18:47:00 -05:00
|
|
|
static void ps3_unmap_single(struct device *_dev, dma_addr_t dma_addr,
|
|
|
|
size_t size, enum dma_data_direction direction)
|
|
|
|
{
|
2007-06-15 17:52:02 -04:00
|
|
|
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
|
2006-11-22 18:47:00 -05:00
|
|
|
int result;
|
|
|
|
|
|
|
|
result = ps3_dma_unmap(dev->d_region, dma_addr, size);
|
|
|
|
|
|
|
|
if (result) {
|
|
|
|
pr_debug("%s:%d: ps3_dma_unmap failed (%d)\n",
|
|
|
|
__func__, __LINE__, result);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2007-06-15 17:52:02 -04:00
|
|
|
static int ps3_sb_map_sg(struct device *_dev, struct scatterlist *sg, int nents,
|
2006-11-22 18:47:00 -05:00
|
|
|
enum dma_data_direction direction)
|
|
|
|
{
|
|
|
|
#if defined(CONFIG_PS3_DYNAMIC_DMA)
|
|
|
|
BUG_ON("do");
|
2007-01-30 18:20:34 -05:00
|
|
|
return -EPERM;
|
|
|
|
#else
|
2007-06-15 17:52:02 -04:00
|
|
|
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
|
2007-05-11 01:42:44 -04:00
|
|
|
int i;
|
|
|
|
|
2007-01-30 18:20:34 -05:00
|
|
|
for (i = 0; i < nents; i++, sg++) {
|
|
|
|
int result = ps3_dma_map(dev->d_region,
|
|
|
|
page_to_phys(sg->page) + sg->offset, sg->length,
|
2007-06-15 17:52:02 -04:00
|
|
|
&sg->dma_address, 0);
|
2007-01-30 18:20:34 -05:00
|
|
|
|
|
|
|
if (result) {
|
|
|
|
pr_debug("%s:%d: ps3_dma_map failed (%d)\n",
|
|
|
|
__func__, __LINE__, result);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
sg->dma_length = sg->length;
|
|
|
|
}
|
|
|
|
|
|
|
|
return nents;
|
2006-11-22 18:47:00 -05:00
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
2007-06-15 17:52:02 -04:00
|
|
|
static int ps3_ioc0_map_sg(struct device *_dev, struct scatterlist *sg,
|
|
|
|
int nents,
|
|
|
|
enum dma_data_direction direction)
|
|
|
|
{
|
|
|
|
BUG();
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void ps3_sb_unmap_sg(struct device *_dev, struct scatterlist *sg,
|
2006-11-22 18:47:00 -05:00
|
|
|
int nents, enum dma_data_direction direction)
|
|
|
|
{
|
|
|
|
#if defined(CONFIG_PS3_DYNAMIC_DMA)
|
|
|
|
BUG_ON("do");
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
2007-06-15 17:52:02 -04:00
|
|
|
static void ps3_ioc0_unmap_sg(struct device *_dev, struct scatterlist *sg,
|
|
|
|
int nents, enum dma_data_direction direction)
|
|
|
|
{
|
|
|
|
BUG();
|
|
|
|
}
|
|
|
|
|
2006-11-22 18:47:00 -05:00
|
|
|
static int ps3_dma_supported(struct device *_dev, u64 mask)
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|
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{
|
2007-01-30 18:20:34 -05:00
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return mask >= DMA_32BIT_MASK;
|
2006-11-22 18:47:00 -05:00
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|
}
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2007-06-15 17:52:02 -04:00
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static struct dma_mapping_ops ps3_sb_dma_ops = {
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.alloc_coherent = ps3_alloc_coherent,
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.free_coherent = ps3_free_coherent,
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.map_single = ps3_sb_map_single,
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.unmap_single = ps3_unmap_single,
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.map_sg = ps3_sb_map_sg,
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.unmap_sg = ps3_sb_unmap_sg,
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.dma_supported = ps3_dma_supported
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};
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static struct dma_mapping_ops ps3_ioc0_dma_ops = {
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2006-11-22 18:47:00 -05:00
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.alloc_coherent = ps3_alloc_coherent,
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.free_coherent = ps3_free_coherent,
|
2007-06-15 17:52:02 -04:00
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.map_single = ps3_ioc0_map_single,
|
2006-11-22 18:47:00 -05:00
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.unmap_single = ps3_unmap_single,
|
2007-06-15 17:52:02 -04:00
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.map_sg = ps3_ioc0_map_sg,
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.unmap_sg = ps3_ioc0_unmap_sg,
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2006-11-22 18:47:00 -05:00
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.dma_supported = ps3_dma_supported
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};
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|
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/**
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* ps3_system_bus_release_device - remove a device from the system bus
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*/
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|
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static void ps3_system_bus_release_device(struct device *_dev)
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{
|
2007-06-15 17:52:02 -04:00
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|
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
|
2006-11-22 18:47:00 -05:00
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|
|
kfree(dev);
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}
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|
|
/**
|
|
|
|
* ps3_system_bus_device_register - add a device to the system bus
|
|
|
|
*
|
|
|
|
* ps3_system_bus_device_register() expects the dev object to be allocated
|
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|
|
* dynamically by the caller. The system bus takes ownership of the dev
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|
|
* object and frees the object in ps3_system_bus_release_device().
|
|
|
|
*/
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|
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|
|
|
|
|
int ps3_system_bus_device_register(struct ps3_system_bus_device *dev)
|
|
|
|
{
|
|
|
|
int result;
|
2007-06-15 17:52:02 -04:00
|
|
|
static unsigned int dev_ioc0_count;
|
|
|
|
static unsigned int dev_sb_count;
|
|
|
|
static unsigned int dev_vuart_count;
|
2006-11-22 18:47:00 -05:00
|
|
|
|
2007-06-15 17:52:02 -04:00
|
|
|
if (!dev->core.parent)
|
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|
|
dev->core.parent = &ps3_system_bus;
|
2006-11-22 18:47:00 -05:00
|
|
|
dev->core.bus = &ps3_system_bus_type;
|
|
|
|
dev->core.release = ps3_system_bus_release_device;
|
|
|
|
|
2007-06-15 17:52:02 -04:00
|
|
|
switch (dev->dev_type) {
|
|
|
|
case PS3_DEVICE_TYPE_IOC0:
|
|
|
|
dev->core.archdata.dma_ops = &ps3_ioc0_dma_ops;
|
|
|
|
snprintf(dev->core.bus_id, sizeof(dev->core.bus_id),
|
|
|
|
"ioc0_%02x", ++dev_ioc0_count);
|
|
|
|
break;
|
|
|
|
case PS3_DEVICE_TYPE_SB:
|
|
|
|
dev->core.archdata.dma_ops = &ps3_sb_dma_ops;
|
|
|
|
snprintf(dev->core.bus_id, sizeof(dev->core.bus_id),
|
|
|
|
"sb_%02x", ++dev_sb_count);
|
|
|
|
|
|
|
|
break;
|
|
|
|
case PS3_DEVICE_TYPE_VUART:
|
|
|
|
snprintf(dev->core.bus_id, sizeof(dev->core.bus_id),
|
|
|
|
"vuart_%02x", ++dev_vuart_count);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
BUG();
|
|
|
|
};
|
|
|
|
|
2006-11-22 18:47:00 -05:00
|
|
|
dev->core.archdata.of_node = NULL;
|
|
|
|
dev->core.archdata.numa_node = 0;
|
|
|
|
|
|
|
|
pr_debug("%s:%d add %s\n", __func__, __LINE__, dev->core.bus_id);
|
|
|
|
|
|
|
|
result = device_register(&dev->core);
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
EXPORT_SYMBOL_GPL(ps3_system_bus_device_register);
|
|
|
|
|
|
|
|
int ps3_system_bus_driver_register(struct ps3_system_bus_driver *drv)
|
|
|
|
{
|
|
|
|
int result;
|
|
|
|
|
2007-06-15 17:52:02 -04:00
|
|
|
pr_debug(" -> %s:%d: %s\n", __func__, __LINE__, drv->core.name);
|
|
|
|
|
|
|
|
if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
|
|
|
|
return -ENODEV;
|
|
|
|
|
2006-11-22 18:47:00 -05:00
|
|
|
drv->core.bus = &ps3_system_bus_type;
|
|
|
|
|
|
|
|
result = driver_register(&drv->core);
|
2007-06-15 17:52:02 -04:00
|
|
|
pr_debug(" <- %s:%d: %s\n", __func__, __LINE__, drv->core.name);
|
2006-11-22 18:47:00 -05:00
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
EXPORT_SYMBOL_GPL(ps3_system_bus_driver_register);
|
|
|
|
|
|
|
|
void ps3_system_bus_driver_unregister(struct ps3_system_bus_driver *drv)
|
|
|
|
{
|
2007-06-15 17:52:02 -04:00
|
|
|
pr_debug(" -> %s:%d: %s\n", __func__, __LINE__, drv->core.name);
|
2006-11-22 18:47:00 -05:00
|
|
|
driver_unregister(&drv->core);
|
2007-06-15 17:52:02 -04:00
|
|
|
pr_debug(" <- %s:%d: %s\n", __func__, __LINE__, drv->core.name);
|
2006-11-22 18:47:00 -05:00
|
|
|
}
|
|
|
|
|
|
|
|
EXPORT_SYMBOL_GPL(ps3_system_bus_driver_unregister);
|