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The Tile architecture is obsolete and getting removed from the kernel,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>

diff --git a/drivers/tty/hvc/Makefile b/drivers/tty/hvc/Makefile
index b82f9f68cd23f1beb42e6b46a13cc5c3c15e3b87..7da1934d34e8128ef6e98f614ca47766c4a54a9f 100644 (file)
--- a/drivers/tty/hvc/Makefile
+++ b/drivers/tty/hvc/Makefile
@@ -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

diff --git a/drivers/tty/hvc/hvc_tile.c b/drivers/tty/hvc/hvc_tile.c
deleted file mode 100644 (file)
index b517c06..0000000
--- a/drivers/tty/hvc/hvc_tile.c
+++ /dev/null
@@ -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);