tty: hvc: remove tile driver
The Tile architecture is obsolete and getting removed from the kernel, this removes the corresponding console driver as well. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann
parent
e6bf3cc585
commit
b8ac14d388
@ -3,7 +3,6 @@ obj-$(CONFIG_HVC_CONSOLE) += hvc_vio.o hvsi_lib.o
|
||||
obj-$(CONFIG_HVC_OPAL) += hvc_opal.o hvsi_lib.o
|
||||
obj-$(CONFIG_HVC_OLD_HVSI) += hvsi.o
|
||||
obj-$(CONFIG_HVC_RTAS) += hvc_rtas.o
|
||||
obj-$(CONFIG_HVC_TILE) += hvc_tile.o
|
||||
obj-$(CONFIG_HVC_DCC) += hvc_dcc.o
|
||||
obj-$(CONFIG_HVC_DRIVER) += hvc_console.o
|
||||
obj-$(CONFIG_HVC_IRQ) += hvc_irq.o
|
||||
|
||||
@ -1,196 +0,0 @@
|
||||
// SPDX-License-Identifier: GPL-2.0
|
||||
/*
|
||||
* Copyright 2010 Tilera Corporation. All Rights Reserved.
|
||||
*
|
||||
* Tilera TILE Processor hypervisor console
|
||||
*/
|
||||
|
||||
#include <linux/console.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/err.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/irq.h>
|
||||
#include <linux/moduleparam.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/types.h>
|
||||
|
||||
#include <asm/setup.h>
|
||||
#include <arch/sim_def.h>
|
||||
|
||||
#include <hv/hypervisor.h>
|
||||
|
||||
#include "hvc_console.h"
|
||||
|
||||
static int use_sim_console;
|
||||
static int __init sim_console(char *str)
|
||||
{
|
||||
use_sim_console = 1;
|
||||
return 0;
|
||||
}
|
||||
early_param("sim_console", sim_console);
|
||||
|
||||
int tile_console_write(const char *buf, int count)
|
||||
{
|
||||
if (unlikely(use_sim_console)) {
|
||||
int i;
|
||||
for (i = 0; i < count; ++i)
|
||||
__insn_mtspr(SPR_SIM_CONTROL, SIM_CONTROL_PUTC |
|
||||
(buf[i] << _SIM_CONTROL_OPERATOR_BITS));
|
||||
__insn_mtspr(SPR_SIM_CONTROL, SIM_CONTROL_PUTC |
|
||||
(SIM_PUTC_FLUSH_BINARY <<
|
||||
_SIM_CONTROL_OPERATOR_BITS));
|
||||
return 0;
|
||||
} else {
|
||||
/* Translate 0 bytes written to EAGAIN for hvc_console_print. */
|
||||
return hv_console_write((HV_VirtAddr)buf, count) ?: -EAGAIN;
|
||||
}
|
||||
}
|
||||
|
||||
static int hvc_tile_put_chars(uint32_t vt, const char *buf, int count)
|
||||
{
|
||||
return tile_console_write(buf, count);
|
||||
}
|
||||
|
||||
static int hvc_tile_get_chars(uint32_t vt, char *buf, int count)
|
||||
{
|
||||
int i, c;
|
||||
|
||||
for (i = 0; i < count; ++i) {
|
||||
c = hv_console_read_if_ready();
|
||||
if (c < 0)
|
||||
break;
|
||||
buf[i] = c;
|
||||
}
|
||||
|
||||
return i;
|
||||
}
|
||||
|
||||
#ifdef __tilegx__
|
||||
/*
|
||||
* IRQ based callbacks.
|
||||
*/
|
||||
static int hvc_tile_notifier_add_irq(struct hvc_struct *hp, int irq)
|
||||
{
|
||||
int rc;
|
||||
int cpu = raw_smp_processor_id(); /* Choose an arbitrary cpu */
|
||||
HV_Coord coord = { .x = cpu_x(cpu), .y = cpu_y(cpu) };
|
||||
|
||||
rc = notifier_add_irq(hp, irq);
|
||||
if (rc)
|
||||
return rc;
|
||||
|
||||
/*
|
||||
* Request that the hypervisor start sending us interrupts.
|
||||
* If the hypervisor returns an error, we still return 0, so that
|
||||
* we can fall back to polling.
|
||||
*/
|
||||
if (hv_console_set_ipi(KERNEL_PL, irq, coord) < 0)
|
||||
notifier_del_irq(hp, irq);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void hvc_tile_notifier_del_irq(struct hvc_struct *hp, int irq)
|
||||
{
|
||||
HV_Coord coord = { 0, 0 };
|
||||
|
||||
/* Tell the hypervisor to stop sending us interrupts. */
|
||||
hv_console_set_ipi(KERNEL_PL, -1, coord);
|
||||
|
||||
notifier_del_irq(hp, irq);
|
||||
}
|
||||
|
||||
static void hvc_tile_notifier_hangup_irq(struct hvc_struct *hp, int irq)
|
||||
{
|
||||
hvc_tile_notifier_del_irq(hp, irq);
|
||||
}
|
||||
#endif
|
||||
|
||||
static const struct hv_ops hvc_tile_get_put_ops = {
|
||||
.get_chars = hvc_tile_get_chars,
|
||||
.put_chars = hvc_tile_put_chars,
|
||||
#ifdef __tilegx__
|
||||
.notifier_add = hvc_tile_notifier_add_irq,
|
||||
.notifier_del = hvc_tile_notifier_del_irq,
|
||||
.notifier_hangup = hvc_tile_notifier_hangup_irq,
|
||||
#endif
|
||||
};
|
||||
|
||||
|
||||
#ifdef __tilegx__
|
||||
static int hvc_tile_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct hvc_struct *hp;
|
||||
int tile_hvc_irq;
|
||||
|
||||
/* Create our IRQ and register it. */
|
||||
tile_hvc_irq = irq_alloc_hwirq(-1);
|
||||
if (!tile_hvc_irq)
|
||||
return -ENXIO;
|
||||
|
||||
tile_irq_activate(tile_hvc_irq, TILE_IRQ_PERCPU);
|
||||
hp = hvc_alloc(0, tile_hvc_irq, &hvc_tile_get_put_ops, 128);
|
||||
if (IS_ERR(hp)) {
|
||||
irq_free_hwirq(tile_hvc_irq);
|
||||
return PTR_ERR(hp);
|
||||
}
|
||||
dev_set_drvdata(&pdev->dev, hp);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int hvc_tile_remove(struct platform_device *pdev)
|
||||
{
|
||||
int rc;
|
||||
struct hvc_struct *hp = dev_get_drvdata(&pdev->dev);
|
||||
|
||||
rc = hvc_remove(hp);
|
||||
if (rc == 0)
|
||||
irq_free_hwirq(hp->data);
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
static void hvc_tile_shutdown(struct platform_device *pdev)
|
||||
{
|
||||
struct hvc_struct *hp = dev_get_drvdata(&pdev->dev);
|
||||
|
||||
hvc_tile_notifier_del_irq(hp, hp->data);
|
||||
}
|
||||
|
||||
static struct platform_device hvc_tile_pdev = {
|
||||
.name = "hvc-tile",
|
||||
.id = 0,
|
||||
};
|
||||
|
||||
static struct platform_driver hvc_tile_driver = {
|
||||
.probe = hvc_tile_probe,
|
||||
.remove = hvc_tile_remove,
|
||||
.shutdown = hvc_tile_shutdown,
|
||||
.driver = {
|
||||
.name = "hvc-tile",
|
||||
}
|
||||
};
|
||||
#endif
|
||||
|
||||
static int __init hvc_tile_console_init(void)
|
||||
{
|
||||
hvc_instantiate(0, 0, &hvc_tile_get_put_ops);
|
||||
add_preferred_console("hvc", 0, NULL);
|
||||
return 0;
|
||||
}
|
||||
console_initcall(hvc_tile_console_init);
|
||||
|
||||
static int __init hvc_tile_init(void)
|
||||
{
|
||||
#ifndef __tilegx__
|
||||
struct hvc_struct *hp;
|
||||
hp = hvc_alloc(0, 0, &hvc_tile_get_put_ops, 128);
|
||||
return PTR_ERR_OR_ZERO(hp);
|
||||
#else
|
||||
platform_device_register(&hvc_tile_pdev);
|
||||
return platform_driver_register(&hvc_tile_driver);
|
||||
#endif
|
||||
}
|
||||
device_initcall(hvc_tile_init);
|
||||
Loading…
Reference in New Issue
Block a user