mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 10:49:33 +00:00
![Geoff Levand](/assets/img/avatar_default.png)
Set the coherent_dma_mask for the PS3 ehci, ohci, and snd devices. Silences WARN_ON_ONCE messages emitted by the dma_alloc_attrs() routine. Reported-by: Fredrik Noring <noring@nocrew.org> Signed-off-by: Geoff Levand <geoff@infradead.org> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
241 lines
5.8 KiB
C
241 lines
5.8 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* PS3 OHCI Host Controller driver
|
|
*
|
|
* Copyright (C) 2006 Sony Computer Entertainment Inc.
|
|
* Copyright 2006 Sony Corp.
|
|
*/
|
|
|
|
#include <asm/firmware.h>
|
|
#include <asm/ps3.h>
|
|
|
|
static int ps3_ohci_hc_reset(struct usb_hcd *hcd)
|
|
{
|
|
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
|
|
|
|
ohci->flags |= OHCI_QUIRK_BE_MMIO;
|
|
ohci_hcd_init(ohci);
|
|
return ohci_init(ohci);
|
|
}
|
|
|
|
static int ps3_ohci_hc_start(struct usb_hcd *hcd)
|
|
{
|
|
int result;
|
|
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
|
|
|
|
/* Handle root hub init quirk in spider south bridge. */
|
|
/* Also set PwrOn2PwrGood to 0x7f (254ms). */
|
|
|
|
ohci_writel(ohci, 0x7f000000 | RH_A_PSM | RH_A_OCPM,
|
|
&ohci->regs->roothub.a);
|
|
ohci_writel(ohci, 0x00060000, &ohci->regs->roothub.b);
|
|
|
|
result = ohci_run(ohci);
|
|
|
|
if (result < 0) {
|
|
dev_err(hcd->self.controller, "can't start %s\n",
|
|
hcd->self.bus_name);
|
|
ohci_stop(hcd);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
static const struct hc_driver ps3_ohci_hc_driver = {
|
|
.description = hcd_name,
|
|
.product_desc = "PS3 OHCI Host Controller",
|
|
.hcd_priv_size = sizeof(struct ohci_hcd),
|
|
.irq = ohci_irq,
|
|
.flags = HCD_MEMORY | HCD_USB11,
|
|
.reset = ps3_ohci_hc_reset,
|
|
.start = ps3_ohci_hc_start,
|
|
.stop = ohci_stop,
|
|
.shutdown = ohci_shutdown,
|
|
.urb_enqueue = ohci_urb_enqueue,
|
|
.urb_dequeue = ohci_urb_dequeue,
|
|
.endpoint_disable = ohci_endpoint_disable,
|
|
.get_frame_number = ohci_get_frame,
|
|
.hub_status_data = ohci_hub_status_data,
|
|
.hub_control = ohci_hub_control,
|
|
.start_port_reset = ohci_start_port_reset,
|
|
#if defined(CONFIG_PM)
|
|
.bus_suspend = ohci_bus_suspend,
|
|
.bus_resume = ohci_bus_resume,
|
|
#endif
|
|
};
|
|
|
|
static int ps3_ohci_probe(struct ps3_system_bus_device *dev)
|
|
{
|
|
int result;
|
|
struct usb_hcd *hcd;
|
|
unsigned int virq;
|
|
static u64 dummy_mask;
|
|
|
|
if (usb_disabled()) {
|
|
result = -ENODEV;
|
|
goto fail_start;
|
|
}
|
|
|
|
result = ps3_open_hv_device(dev);
|
|
|
|
if (result) {
|
|
dev_dbg(&dev->core, "%s:%d: ps3_open_hv_device failed: %s\n",
|
|
__func__, __LINE__, ps3_result(result));
|
|
result = -EPERM;
|
|
goto fail_open;
|
|
}
|
|
|
|
result = ps3_dma_region_create(dev->d_region);
|
|
|
|
if (result) {
|
|
dev_dbg(&dev->core, "%s:%d: ps3_dma_region_create failed: "
|
|
"(%d)\n", __func__, __LINE__, result);
|
|
BUG_ON("check region type");
|
|
goto fail_dma_region;
|
|
}
|
|
|
|
result = ps3_mmio_region_create(dev->m_region);
|
|
|
|
if (result) {
|
|
dev_dbg(&dev->core, "%s:%d: ps3_map_mmio_region failed\n",
|
|
__func__, __LINE__);
|
|
result = -EPERM;
|
|
goto fail_mmio_region;
|
|
}
|
|
|
|
dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__,
|
|
__LINE__, dev->m_region->lpar_addr);
|
|
|
|
result = ps3_io_irq_setup(PS3_BINDING_CPU_ANY, dev->interrupt_id, &virq);
|
|
|
|
if (result) {
|
|
dev_dbg(&dev->core, "%s:%d: ps3_construct_io_irq(%d) failed.\n",
|
|
__func__, __LINE__, virq);
|
|
result = -EPERM;
|
|
goto fail_irq;
|
|
}
|
|
|
|
dummy_mask = DMA_BIT_MASK(32);
|
|
dev->core.dma_mask = &dummy_mask;
|
|
dma_set_coherent_mask(&dev->core, dummy_mask);
|
|
|
|
hcd = usb_create_hcd(&ps3_ohci_hc_driver, &dev->core, dev_name(&dev->core));
|
|
|
|
if (!hcd) {
|
|
dev_dbg(&dev->core, "%s:%d: usb_create_hcd failed\n", __func__,
|
|
__LINE__);
|
|
result = -ENOMEM;
|
|
goto fail_create_hcd;
|
|
}
|
|
|
|
hcd->rsrc_start = dev->m_region->lpar_addr;
|
|
hcd->rsrc_len = dev->m_region->len;
|
|
|
|
if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name))
|
|
dev_dbg(&dev->core, "%s:%d: request_mem_region failed\n",
|
|
__func__, __LINE__);
|
|
|
|
hcd->regs = ioremap(dev->m_region->lpar_addr, dev->m_region->len);
|
|
|
|
if (!hcd->regs) {
|
|
dev_dbg(&dev->core, "%s:%d: ioremap failed\n", __func__,
|
|
__LINE__);
|
|
result = -EPERM;
|
|
goto fail_ioremap;
|
|
}
|
|
|
|
dev_dbg(&dev->core, "%s:%d: hcd->rsrc_start %lxh\n", __func__, __LINE__,
|
|
(unsigned long)hcd->rsrc_start);
|
|
dev_dbg(&dev->core, "%s:%d: hcd->rsrc_len %lxh\n", __func__, __LINE__,
|
|
(unsigned long)hcd->rsrc_len);
|
|
dev_dbg(&dev->core, "%s:%d: hcd->regs %lxh\n", __func__, __LINE__,
|
|
(unsigned long)hcd->regs);
|
|
dev_dbg(&dev->core, "%s:%d: virq %lu\n", __func__, __LINE__,
|
|
(unsigned long)virq);
|
|
|
|
ps3_system_bus_set_drvdata(dev, hcd);
|
|
|
|
result = usb_add_hcd(hcd, virq, 0);
|
|
|
|
if (result) {
|
|
dev_dbg(&dev->core, "%s:%d: usb_add_hcd failed (%d)\n",
|
|
__func__, __LINE__, result);
|
|
goto fail_add_hcd;
|
|
}
|
|
|
|
device_wakeup_enable(hcd->self.controller);
|
|
return result;
|
|
|
|
fail_add_hcd:
|
|
iounmap(hcd->regs);
|
|
fail_ioremap:
|
|
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
|
|
usb_put_hcd(hcd);
|
|
fail_create_hcd:
|
|
ps3_io_irq_destroy(virq);
|
|
fail_irq:
|
|
ps3_free_mmio_region(dev->m_region);
|
|
fail_mmio_region:
|
|
ps3_dma_region_free(dev->d_region);
|
|
fail_dma_region:
|
|
ps3_close_hv_device(dev);
|
|
fail_open:
|
|
fail_start:
|
|
return result;
|
|
}
|
|
|
|
static int ps3_ohci_remove(struct ps3_system_bus_device *dev)
|
|
{
|
|
unsigned int tmp;
|
|
struct usb_hcd *hcd = ps3_system_bus_get_drvdata(dev);
|
|
|
|
BUG_ON(!hcd);
|
|
|
|
dev_dbg(&dev->core, "%s:%d: regs %p\n", __func__, __LINE__, hcd->regs);
|
|
dev_dbg(&dev->core, "%s:%d: irq %u\n", __func__, __LINE__, hcd->irq);
|
|
|
|
tmp = hcd->irq;
|
|
|
|
ohci_shutdown(hcd);
|
|
usb_remove_hcd(hcd);
|
|
|
|
ps3_system_bus_set_drvdata(dev, NULL);
|
|
|
|
BUG_ON(!hcd->regs);
|
|
iounmap(hcd->regs);
|
|
|
|
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
|
|
usb_put_hcd(hcd);
|
|
|
|
ps3_io_irq_destroy(tmp);
|
|
ps3_free_mmio_region(dev->m_region);
|
|
|
|
ps3_dma_region_free(dev->d_region);
|
|
ps3_close_hv_device(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __init ps3_ohci_driver_register(struct ps3_system_bus_driver *drv)
|
|
{
|
|
return firmware_has_feature(FW_FEATURE_PS3_LV1)
|
|
? ps3_system_bus_driver_register(drv)
|
|
: 0;
|
|
}
|
|
|
|
static void ps3_ohci_driver_unregister(struct ps3_system_bus_driver *drv)
|
|
{
|
|
if (firmware_has_feature(FW_FEATURE_PS3_LV1))
|
|
ps3_system_bus_driver_unregister(drv);
|
|
}
|
|
|
|
MODULE_ALIAS(PS3_MODULE_ALIAS_OHCI);
|
|
|
|
static struct ps3_system_bus_driver ps3_ohci_driver = {
|
|
.core.name = "ps3-ohci-driver",
|
|
.core.owner = THIS_MODULE,
|
|
.match_id = PS3_MATCH_ID_OHCI,
|
|
.probe = ps3_ohci_probe,
|
|
.remove = ps3_ohci_remove,
|
|
.shutdown = ps3_ohci_remove,
|
|
};
|