#include <linux/dma-mapping.h>
#include <linux/bcd.h>
#include <linux/rtc.h>
+#include <linux/slab.h>
#include <asm/time.h>
#include <asm/uaccess.h>
#include <asm/paca.h>
#include <asm/abs_addr.h>
-#include <asm/iseries/vio.h>
+#include <asm/firmware.h>
#include <asm/iseries/mf.h>
#include <asm/iseries/hv_lp_config.h>
+#include <asm/iseries/hv_lp_event.h>
#include <asm/iseries/it_lp_queue.h>
#include "setup.h"
-extern int piranha_simulator;
+static int mf_initialized;
/*
* This is the structure layout for the Machine Facilites LPAR event
static struct pending_event *pending_event_head;
static struct pending_event *pending_event_tail;
static struct pending_event *pending_event_avail;
-static struct pending_event pending_event_prealloc[16];
+#define PENDING_EVENT_PREALLOC_LEN 16
+static struct pending_event pending_event_prealloc[PENDING_EVENT_PREALLOC_LEN];
/*
* Put a pending event onto the available queue, so it can get reused.
return ev;
}
-static int signal_vsp_instruction(struct vsp_cmd_data *vsp_cmd)
+static int __maybe_unused
+signal_vsp_instruction(struct vsp_cmd_data *vsp_cmd)
{
struct pending_event *ev = new_pending_event();
int rc;
*/
static int shutdown(void)
{
- int rc = kill_proc(1, SIGINT, 1);
+ int rc = kill_cad_pid(SIGINT, 1);
if (rc) {
printk(KERN_ALERT "mf.c: SIGINT to init failed (%d), "
* parse it enough to know if it is an interrupt or an
* acknowledge.
*/
-static void hv_handler(struct HvLpEvent *event, struct pt_regs *regs)
+static void hv_handler(struct HvLpEvent *event)
{
if ((event != NULL) && (event->xType == HvLpEvent_Type_MachineFac)) {
if (hvlpevent_is_ack(event))
* Global kernel interface to tell the VSP object in the primary
* partition to reboot this partition.
*/
-void mf_reboot(void)
+void mf_reboot(char *cmd)
{
printk(KERN_INFO "mf.c: Preparing to bounce...\n");
signal_ce_msg_simple(0x4e, NULL);
/*
* Display a single word SRC of the form "PROGXXXX" on the VSP control panel.
*/
-void mf_display_progress(u16 value)
+static __init void mf_display_progress_src(u16 value)
{
u8 ce[12];
u8 src[72];
* Clear the VSP control panel. Used to "erase" an SRC that was
* previously displayed.
*/
-void mf_clear_src(void)
+static void mf_clear_src(void)
{
signal_ce_msg_simple(0x4b, NULL);
}
+void __init mf_display_progress(u16 value)
+{
+ if (!mf_initialized)
+ return;
+
+ if (0xFFFF == value)
+ mf_clear_src();
+ else
+ mf_display_progress_src(value);
+}
+
/*
* Initialization code here.
*/
-void mf_init(void)
+void __init mf_init(void)
{
int i;
- /* initialize */
spin_lock_init(&pending_event_spinlock);
- for (i = 0;
- i < sizeof(pending_event_prealloc) / sizeof(*pending_event_prealloc);
- ++i)
+
+ for (i = 0; i < PENDING_EVENT_PREALLOC_LEN; i++)
free_pending_event(&pending_event_prealloc[i]);
+
HvLpEvent_registerHandler(HvLpEvent_Type_MachineFac, &hv_handler);
/* virtual continue ack */
signal_ce_msg_simple(0x57, NULL);
- /* initialization complete */
+ mf_initialized = 1;
+ mb();
+
printk(KERN_NOTICE "mf.c: iSeries Linux LPAR Machine Facilities "
"initialized\n");
}
complete(&rtc->com);
}
+static int mf_set_rtc(struct rtc_time *tm)
+{
+ char ce_time[12];
+ u8 day, mon, hour, min, sec, y1, y2;
+ unsigned year;
+
+ year = 1900 + tm->tm_year;
+ y1 = year / 100;
+ y2 = year % 100;
+
+ sec = tm->tm_sec;
+ min = tm->tm_min;
+ hour = tm->tm_hour;
+ day = tm->tm_mday;
+ mon = tm->tm_mon + 1;
+
+ sec = bin2bcd(sec);
+ min = bin2bcd(min);
+ hour = bin2bcd(hour);
+ mon = bin2bcd(mon);
+ day = bin2bcd(day);
+ y1 = bin2bcd(y1);
+ y2 = bin2bcd(y2);
+
+ memset(ce_time, 0, sizeof(ce_time));
+ ce_time[3] = 0x41;
+ ce_time[4] = y1;
+ ce_time[5] = y2;
+ ce_time[6] = sec;
+ ce_time[7] = min;
+ ce_time[8] = hour;
+ ce_time[10] = day;
+ ce_time[11] = mon;
+
+ return signal_ce_msg(ce_time, NULL);
+}
+
static int rtc_set_tm(int rc, u8 *ce_msg, struct rtc_time *tm)
{
tm->tm_wday = 0;
u8 day = ce_msg[10];
u8 mon = ce_msg[11];
- BCD_TO_BIN(sec);
- BCD_TO_BIN(min);
- BCD_TO_BIN(hour);
- BCD_TO_BIN(day);
- BCD_TO_BIN(mon);
- BCD_TO_BIN(year);
+ sec = bcd2bin(sec);
+ min = bcd2bin(min);
+ hour = bcd2bin(hour);
+ day = bcd2bin(day);
+ mon = bcd2bin(mon);
+ year = bcd2bin(year);
if (year <= 69)
year += 100;
return 0;
}
-int mf_get_rtc(struct rtc_time *tm)
+static int mf_get_rtc(struct rtc_time *tm)
{
struct ce_msg_comp_data ce_complete;
struct rtc_time_data rtc_data;
rtc->busy = 0;
}
-int mf_get_boot_rtc(struct rtc_time *tm)
+static int mf_get_boot_rtc(struct rtc_time *tm)
{
struct ce_msg_comp_data ce_complete;
struct boot_rtc_time_data rtc_data;
/* We need to poll here as we are not yet taking interrupts */
while (rtc_data.busy) {
if (hvlpevent_is_pending())
- process_hvlpevents(NULL);
+ process_hvlpevents();
}
return rtc_set_tm(rtc_data.rc, rtc_data.ce_msg.ce_msg, tm);
}
-int mf_set_rtc(struct rtc_time *tm)
-{
- char ce_time[12];
- u8 day, mon, hour, min, sec, y1, y2;
- unsigned year;
-
- year = 1900 + tm->tm_year;
- y1 = year / 100;
- y2 = year % 100;
-
- sec = tm->tm_sec;
- min = tm->tm_min;
- hour = tm->tm_hour;
- day = tm->tm_mday;
- mon = tm->tm_mon + 1;
-
- BIN_TO_BCD(sec);
- BIN_TO_BCD(min);
- BIN_TO_BCD(hour);
- BIN_TO_BCD(mon);
- BIN_TO_BCD(day);
- BIN_TO_BCD(y1);
- BIN_TO_BCD(y2);
-
- memset(ce_time, 0, sizeof(ce_time));
- ce_time[3] = 0x41;
- ce_time[4] = y1;
- ce_time[5] = y2;
- ce_time[6] = sec;
- ce_time[7] = min;
- ce_time[8] = hour;
- ce_time[10] = day;
- ce_time[11] = mon;
-
- return signal_ce_msg(ce_time, NULL);
-}
-
#ifdef CONFIG_PROC_FS
-
-static int proc_mf_dump_cmdline(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int mf_cmdline_proc_show(struct seq_file *m, void *v)
{
- int len;
- char *p;
+ char *page, *p;
struct vsp_cmd_data vsp_cmd;
int rc;
dma_addr_t dma_addr;
/* The HV appears to return no more than 256 bytes of command line */
- if (off >= 256)
- return 0;
- if ((off + count) > 256)
- count = 256 - off;
+ page = kmalloc(256, GFP_KERNEL);
+ if (!page)
+ return -ENOMEM;
- dma_addr = dma_map_single(iSeries_vio_dev, page, off + count,
- DMA_FROM_DEVICE);
- if (dma_mapping_error(dma_addr))
+ dma_addr = iseries_hv_map(page, 256, DMA_FROM_DEVICE);
+ if (dma_addr == DMA_ERROR_CODE) {
+ kfree(page);
return -ENOMEM;
- memset(page, 0, off + count);
+ }
+ memset(page, 0, 256);
memset(&vsp_cmd, 0, sizeof(vsp_cmd));
vsp_cmd.cmd = 33;
vsp_cmd.sub_data.kern.token = dma_addr;
vsp_cmd.sub_data.kern.address_type = HvLpDma_AddressType_TceIndex;
- vsp_cmd.sub_data.kern.side = (u64)data;
- vsp_cmd.sub_data.kern.length = off + count;
+ vsp_cmd.sub_data.kern.side = (u64)m->private;
+ vsp_cmd.sub_data.kern.length = 256;
mb();
rc = signal_vsp_instruction(&vsp_cmd);
- dma_unmap_single(iSeries_vio_dev, dma_addr, off + count,
- DMA_FROM_DEVICE);
- if (rc)
+ iseries_hv_unmap(dma_addr, 256, DMA_FROM_DEVICE);
+ if (rc) {
+ kfree(page);
return rc;
- if (vsp_cmd.result_code != 0)
+ }
+ if (vsp_cmd.result_code != 0) {
+ kfree(page);
return -ENOMEM;
+ }
p = page;
- len = 0;
- while (len < (off + count)) {
- if ((*p == '\0') || (*p == '\n')) {
- if (*p == '\0')
- *p = '\n';
- p++;
- len++;
- *eof = 1;
+ while (p - page < 256) {
+ if (*p == '\0' || *p == '\n') {
+ *p = '\n';
break;
}
p++;
- len++;
- }
- if (len < off) {
- *eof = 1;
- len = 0;
}
- return len;
+ seq_write(m, page, p - page);
+ kfree(page);
+ return 0;
+}
+
+static int mf_cmdline_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, mf_cmdline_proc_show, PDE(inode)->data);
}
#if 0
int len = *size;
dma_addr_t dma_addr;
- dma_addr = dma_map_single(iSeries_vio_dev, buffer, len,
- DMA_FROM_DEVICE);
+ dma_addr = iseries_hv_map(buffer, len, DMA_FROM_DEVICE);
memset(buffer, 0, len);
memset(&vsp_cmd, 0, sizeof(vsp_cmd));
vsp_cmd.cmd = 32;
rc = -ENOMEM;
}
- dma_unmap_single(iSeries_vio_dev, dma_addr, len, DMA_FROM_DEVICE);
+ iseries_hv_unmap(dma_addr, len, DMA_FROM_DEVICE);
return rc;
}
}
#endif
-static int proc_mf_dump_side(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int mf_side_proc_show(struct seq_file *m, void *v)
{
- int len;
char mf_current_side = ' ';
struct vsp_cmd_data vsp_cmd;
}
}
- len = sprintf(page, "%c\n", mf_current_side);
+ seq_printf(m, "%c\n", mf_current_side);
+ return 0;
+}
- if (len <= (off + count))
- *eof = 1;
- *start = page + off;
- len -= off;
- if (len > count)
- len = count;
- if (len < 0)
- len = 0;
- return len;
+static int mf_side_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, mf_side_proc_show, NULL);
}
-static int proc_mf_change_side(struct file *file, const char __user *buffer,
- unsigned long count, void *data)
+static ssize_t mf_side_proc_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *pos)
{
char side;
u64 newSide;
return count;
}
+static const struct file_operations mf_side_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = mf_side_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .write = mf_side_proc_write,
+};
+
#if 0
static void mf_getSrcHistory(char *buffer, int size)
{
}
#endif
-static int proc_mf_dump_src(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int mf_src_proc_show(struct seq_file *m, void *v)
{
#if 0
int len;
#endif
}
-static int proc_mf_change_src(struct file *file, const char __user *buffer,
- unsigned long count, void *data)
+static int mf_src_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, mf_src_proc_show, NULL);
+}
+
+static ssize_t mf_src_proc_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *pos)
{
char stkbuf[10];
return count;
}
-static int proc_mf_change_cmdline(struct file *file, const char __user *buffer,
- unsigned long count, void *data)
+static const struct file_operations mf_src_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = mf_src_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .write = mf_src_proc_write,
+};
+
+static ssize_t mf_cmdline_proc_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *pos)
{
+ void *data = PDE(file->f_path.dentry->d_inode)->data;
struct vsp_cmd_data vsp_cmd;
dma_addr_t dma_addr;
char *page;
goto out;
dma_addr = 0;
- page = dma_alloc_coherent(iSeries_vio_dev, count, &dma_addr,
- GFP_ATOMIC);
+ page = iseries_hv_alloc(count, &dma_addr, GFP_ATOMIC);
ret = -ENOMEM;
if (page == NULL)
goto out;
ret = count;
out_free:
- dma_free_coherent(iSeries_vio_dev, count, page, dma_addr);
+ iseries_hv_free(count, page, dma_addr);
out:
return ret;
}
+static const struct file_operations mf_cmdline_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = mf_cmdline_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .write = mf_cmdline_proc_write,
+};
+
static ssize_t proc_mf_change_vmlinux(struct file *file,
const char __user *buf,
size_t count, loff_t *ppos)
{
- struct proc_dir_entry *dp = PDE(file->f_dentry->d_inode);
+ struct proc_dir_entry *dp = PDE(file->f_path.dentry->d_inode);
ssize_t rc;
dma_addr_t dma_addr;
char *page;
goto out;
dma_addr = 0;
- page = dma_alloc_coherent(iSeries_vio_dev, count, &dma_addr,
- GFP_ATOMIC);
+ page = iseries_hv_alloc(count, &dma_addr, GFP_ATOMIC);
rc = -ENOMEM;
if (page == NULL) {
printk(KERN_ERR "mf.c: couldn't allocate memory to set vmlinux chunk\n");
*ppos += count;
rc = count;
out_free:
- dma_free_coherent(iSeries_vio_dev, count, page, dma_addr);
+ iseries_hv_free(count, page, dma_addr);
out:
return rc;
}
-static struct file_operations proc_vmlinux_operations = {
+static const struct file_operations proc_vmlinux_operations = {
.write = proc_mf_change_vmlinux,
};
char name[2];
int i;
+ if (!firmware_has_feature(FW_FEATURE_ISERIES))
+ return 0;
+
mf_proc_root = proc_mkdir("iSeries/mf", NULL);
if (!mf_proc_root)
return 1;
if (!mf)
return 1;
- ent = create_proc_entry("cmdline", S_IFREG|S_IRUSR|S_IWUSR, mf);
+ ent = proc_create_data("cmdline", S_IRUSR|S_IWUSR, mf,
+ &mf_cmdline_proc_fops, (void *)(long)i);
if (!ent)
return 1;
- ent->nlink = 1;
- ent->data = (void *)(long)i;
- ent->read_proc = proc_mf_dump_cmdline;
- ent->write_proc = proc_mf_change_cmdline;
if (i == 3) /* no vmlinux entry for 'D' */
continue;
- ent = create_proc_entry("vmlinux", S_IFREG|S_IWUSR, mf);
+ ent = proc_create_data("vmlinux", S_IFREG|S_IWUSR, mf,
+ &proc_vmlinux_operations,
+ (void *)(long)i);
if (!ent)
return 1;
- ent->nlink = 1;
- ent->data = (void *)(long)i;
- ent->proc_fops = &proc_vmlinux_operations;
}
- ent = create_proc_entry("side", S_IFREG|S_IRUSR|S_IWUSR, mf_proc_root);
+ ent = proc_create("side", S_IFREG|S_IRUSR|S_IWUSR, mf_proc_root,
+ &mf_side_proc_fops);
if (!ent)
return 1;
- ent->nlink = 1;
- ent->data = (void *)0;
- ent->read_proc = proc_mf_dump_side;
- ent->write_proc = proc_mf_change_side;
- ent = create_proc_entry("src", S_IFREG|S_IRUSR|S_IWUSR, mf_proc_root);
+ ent = proc_create("src", S_IFREG|S_IRUSR|S_IWUSR, mf_proc_root,
+ &mf_src_proc_fops);
if (!ent)
return 1;
- ent->nlink = 1;
- ent->data = (void *)0;
- ent->read_proc = proc_mf_dump_src;
- ent->write_proc = proc_mf_change_src;
return 0;
}
*/
void iSeries_get_rtc_time(struct rtc_time *rtc_tm)
{
- if (piranha_simulator)
- return;
-
mf_get_rtc(rtc_tm);
rtc_tm->tm_mon--;
}
{
struct rtc_time tm;
- if (piranha_simulator)
- return 0;
-
mf_get_boot_rtc(&tm);
return mktime(tm.tm_year + 1900, tm.tm_mon, tm.tm_mday,
tm.tm_hour, tm.tm_min, tm.tm_sec);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff