struct rtas_t rtas = {
.lock = SPIN_LOCK_UNLOCKED
};
+EXPORT_SYMBOL(rtas);
struct rtas_suspend_me_data {
long waiting;
struct rtas_args *args;
};
-EXPORT_SYMBOL(rtas);
-
DEFINE_SPINLOCK(rtas_data_buf_lock);
+EXPORT_SYMBOL(rtas_data_buf_lock);
+
char rtas_data_buf[RTAS_DATA_BUF_SIZE] __cacheline_aligned;
+EXPORT_SYMBOL(rtas_data_buf);
+
unsigned long rtas_rmo_buf;
/*
}
}
-void __init udbg_init_rtas(void)
+void __init udbg_init_rtas_panel(void)
{
udbg_putc = call_rtas_display_status_delay;
}
+#ifdef CONFIG_UDBG_RTAS_CONSOLE
+
+/* If you think you're dying before early_init_dt_scan_rtas() does its
+ * work, you can hard code the token values for your firmware here and
+ * hardcode rtas.base/entry etc.
+ */
+static unsigned int rtas_putchar_token = RTAS_UNKNOWN_SERVICE;
+static unsigned int rtas_getchar_token = RTAS_UNKNOWN_SERVICE;
+
+static void udbg_rtascon_putc(char c)
+{
+ int tries;
+
+ if (!rtas.base)
+ return;
+
+ /* Add CRs before LFs */
+ if (c == '\n')
+ udbg_rtascon_putc('\r');
+
+ /* if there is more than one character to be displayed, wait a bit */
+ for (tries = 0; tries < 16; tries++) {
+ if (rtas_call(rtas_putchar_token, 1, 1, NULL, c) == 0)
+ break;
+ udelay(1000);
+ }
+}
+
+static int udbg_rtascon_getc_poll(void)
+{
+ int c;
+
+ if (!rtas.base)
+ return -1;
+
+ if (rtas_call(rtas_getchar_token, 0, 2, &c))
+ return -1;
+
+ return c;
+}
+
+static int udbg_rtascon_getc(void)
+{
+ int c;
+
+ while ((c = udbg_rtascon_getc_poll()) == -1)
+ ;
+
+ return c;
+}
+
+
+void __init udbg_init_rtas_console(void)
+{
+ udbg_putc = udbg_rtascon_putc;
+ udbg_getc = udbg_rtascon_getc;
+ udbg_getc_poll = udbg_rtascon_getc_poll;
+}
+#endif /* CONFIG_UDBG_RTAS_CONSOLE */
+
void rtas_progress(char *s, unsigned short hex)
{
struct device_node *root;
- int width, *p;
+ int width;
+ const int *p;
char *os;
static int display_character, set_indicator;
- static int display_width, display_lines, *row_width, form_feed;
+ static int display_width, display_lines, form_feed;
+ const static int *row_width;
static DEFINE_SPINLOCK(progress_lock);
static int current_line;
static int pending_newline = 0; /* did last write end with unprinted newline? */
if (display_width == 0) {
display_width = 0x10;
if ((root = find_path_device("/rtas"))) {
- if ((p = (unsigned int *)get_property(root,
+ if ((p = get_property(root,
"ibm,display-line-length", NULL)))
display_width = *p;
- if ((p = (unsigned int *)get_property(root,
+ if ((p = get_property(root,
"ibm,form-feed", NULL)))
form_feed = *p;
- if ((p = (unsigned int *)get_property(root,
+ if ((p = get_property(root,
"ibm,display-number-of-lines", NULL)))
display_lines = *p;
- row_width = (unsigned int *)get_property(root,
+ row_width = get_property(root,
"ibm,display-truncation-length", NULL);
}
display_character = rtas_token("display-character");
int rtas_token(const char *service)
{
- int *tokp;
+ const int *tokp;
if (rtas.dev == NULL)
return RTAS_UNKNOWN_SERVICE;
- tokp = (int *) get_property(rtas.dev, service, NULL);
+ tokp = get_property(rtas.dev, service, NULL);
return tokp ? *tokp : RTAS_UNKNOWN_SERVICE;
}
+EXPORT_SYMBOL(rtas_token);
#ifdef CONFIG_RTAS_ERROR_LOGGING
/*
char *buff_copy = NULL;
int ret;
- if (token == RTAS_UNKNOWN_SERVICE)
+ if (!rtas.entry || token == RTAS_UNKNOWN_SERVICE)
return -1;
/* Gotta do something different here, use global lock for now... */
}
return ret;
}
+EXPORT_SYMBOL(rtas_call);
/* For RTAS_BUSY (-2), delay for 1 millisecond. For an extended busy status
* code of 990n, perform the hinted delay of 10^n (last digit) milliseconds.
return ms;
}
+EXPORT_SYMBOL(rtas_busy_delay_time);
/* For an RTAS busy status code, perform the hinted delay. */
unsigned int rtas_busy_delay(int status)
return ms;
}
+EXPORT_SYMBOL(rtas_busy_delay);
int rtas_error_rc(int rtas_rc)
{
return rtas_error_rc(rc);
return rc;
}
+EXPORT_SYMBOL(rtas_get_power_level);
int rtas_set_power_level(int powerdomain, int level, int *setlevel)
{
return rtas_error_rc(rc);
return rc;
}
+EXPORT_SYMBOL(rtas_set_power_level);
int rtas_get_sensor(int sensor, int index, int *state)
{
return rtas_error_rc(rc);
return rc;
}
+EXPORT_SYMBOL(rtas_get_sensor);
int rtas_set_indicator(int indicator, int index, int new_value)
{
return rtas_error_rc(rc);
return rc;
}
+EXPORT_SYMBOL(rtas_set_indicator);
+
+/*
+ * Ignoring RTAS extended delay
+ */
+int rtas_set_indicator_fast(int indicator, int index, int new_value)
+{
+ int rc;
+ int token = rtas_token("set-indicator");
+
+ if (token == RTAS_UNKNOWN_SERVICE)
+ return -ENOENT;
+
+ rc = rtas_call(token, 3, 1, NULL, indicator, index, new_value);
+
+ WARN_ON(rc == -2 || (rc >= 9900 && rc <= 9905));
+
+ if (rc < 0)
+ return rtas_error_rc(rc);
+
+ return rc;
+}
void rtas_restart(char *cmd)
{
{
int status;
+ if (panic_timeout)
+ return;
+
if (RTAS_UNKNOWN_SERVICE == rtas_token("ibm,os-term"))
return;
int i;
long state;
long rc;
- unsigned long dummy;
-
+ unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
struct rtas_suspend_me_data data;
/* Make sure the state is valid */
- rc = plpar_hcall(H_VASI_STATE,
- ((u64)args->args[0] << 32) | args->args[1],
- 0, 0, 0,
- &state, &dummy, &dummy);
+ rc = plpar_hcall(H_VASI_STATE, retbuf,
+ ((u64)args->args[0] << 32) | args->args[1]);
+
+ state = retbuf[0];
if (rc) {
printk(KERN_ERR "rtas_ibm_suspend_me: vasi_state returned %ld\n",rc);
*/
rtas.dev = of_find_node_by_name(NULL, "rtas");
if (rtas.dev) {
- u32 *basep, *entryp;
- u32 *sizep;
+ const u32 *basep, *entryp, *sizep;
- basep = (u32 *)get_property(rtas.dev, "linux,rtas-base", NULL);
- sizep = (u32 *)get_property(rtas.dev, "rtas-size", NULL);
+ basep = get_property(rtas.dev, "linux,rtas-base", NULL);
+ sizep = get_property(rtas.dev, "rtas-size", NULL);
if (basep != NULL && sizep != NULL) {
rtas.base = *basep;
rtas.size = *sizep;
- entryp = (u32 *)get_property(rtas.dev, "linux,rtas-entry", NULL);
+ entryp = get_property(rtas.dev,
+ "linux,rtas-entry", NULL);
if (entryp == NULL) /* Ugh */
rtas.entry = rtas.base;
else
#endif
}
+int __init early_init_dt_scan_rtas(unsigned long node,
+ const char *uname, int depth, void *data)
+{
+ u32 *basep, *entryp, *sizep;
-EXPORT_SYMBOL(rtas_token);
-EXPORT_SYMBOL(rtas_call);
-EXPORT_SYMBOL(rtas_data_buf);
-EXPORT_SYMBOL(rtas_data_buf_lock);
-EXPORT_SYMBOL(rtas_busy_delay_time);
-EXPORT_SYMBOL(rtas_busy_delay);
-EXPORT_SYMBOL(rtas_get_sensor);
-EXPORT_SYMBOL(rtas_get_power_level);
-EXPORT_SYMBOL(rtas_set_power_level);
-EXPORT_SYMBOL(rtas_set_indicator);
+ if (depth != 1 || strcmp(uname, "rtas") != 0)
+ return 0;
+
+ basep = of_get_flat_dt_prop(node, "linux,rtas-base", NULL);
+ entryp = of_get_flat_dt_prop(node, "linux,rtas-entry", NULL);
+ sizep = of_get_flat_dt_prop(node, "rtas-size", NULL);
+
+ if (basep && entryp && sizep) {
+ rtas.base = *basep;
+ rtas.entry = *entryp;
+ rtas.size = *sizep;
+ }
+
+#ifdef CONFIG_UDBG_RTAS_CONSOLE
+ basep = of_get_flat_dt_prop(node, "put-term-char", NULL);
+ if (basep)
+ rtas_putchar_token = *basep;
+
+ basep = of_get_flat_dt_prop(node, "get-term-char", NULL);
+ if (basep)
+ rtas_getchar_token = *basep;
+
+ if (rtas_putchar_token != RTAS_UNKNOWN_SERVICE &&
+ rtas_getchar_token != RTAS_UNKNOWN_SERVICE)
+ udbg_init_rtas_console();
+
+#endif
+
+ /* break now */
+ return 1;
+}
projects / linux.git / blobdiff