From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/arch/parisc/kernel/firmware.c | 111 ++++++++++++++++++++++++++++++++++++++++++++++++++-----
1 files changed, 101 insertions(+), 10 deletions(-)
diff --git a/kernel/arch/parisc/kernel/firmware.c b/kernel/arch/parisc/kernel/firmware.c
index 6d471c0..7ed28dd 100644
--- a/kernel/arch/parisc/kernel/firmware.c
+++ b/kernel/arch/parisc/kernel/firmware.c
@@ -1,9 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* arch/parisc/kernel/firmware.c - safe PDC access routines
*
* PDC == Processor Dependent Code
*
- * See http://www.parisc-linux.org/documentation/index.html
+ * See PDC documentation at
+ * https://parisc.wiki.kernel.org/index.php/Technical_Documentation
* for documentation describing the entry points and calling
* conventions defined below.
*
@@ -12,12 +14,6 @@
* Copyright 2003 Grant Grundler <grundler parisc-linux org>
* Copyright 2003,2004 Ryan Bradetich <rbrad@parisc-linux.org>
* Copyright 2004,2006 Thibaut VARENE <varenet@parisc-linux.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
*/
/* I think it would be in everyone's best interest to follow this
@@ -87,7 +83,7 @@
/* Firmware needs to be initially set to narrow to determine the
* actual firmware width. */
-int parisc_narrow_firmware __read_mostly = 1;
+int parisc_narrow_firmware __ro_after_init = 1;
#endif
/* On most currently-supported platforms, IODC I/O calls are 32-bit calls
@@ -315,6 +311,19 @@
return retval;
}
+
+/**
+ * pdc_cpu_rendenzvous - Stop currently executing CPU
+ * @retval: -1 on error, 0 on success
+ */
+int __pdc_cpu_rendezvous(void)
+{
+ if (is_pdc_pat())
+ return mem_pdc_call(PDC_PAT_CPU, PDC_PAT_CPU_RENDEZVOUS);
+ else
+ return mem_pdc_call(PDC_PROC, 1, 0);
+}
+
/**
* pdc_chassis_warn - Fetches chassis warnings
@@ -566,6 +575,30 @@
spin_unlock_irqrestore(&pdc_lock, flags);
return retval;
+}
+
+/**
+ * pdc_model_platform_info - Returns machine product and serial number.
+ * @orig_prod_num: Return buffer for original product number.
+ * @current_prod_num: Return buffer for current product number.
+ * @serial_no: Return buffer for serial number.
+ *
+ * Returns strings containing the original and current product numbers and the
+ * serial number of the system.
+ */
+int pdc_model_platform_info(char *orig_prod_num, char *current_prod_num,
+ char *serial_no)
+{
+ int retval;
+ unsigned long flags;
+
+ spin_lock_irqsave(&pdc_lock, flags);
+ retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_GET_PLATFORM_INFO,
+ __pa(orig_prod_num), __pa(current_prod_num), __pa(serial_no));
+ convert_to_wide(pdc_result);
+ spin_unlock_irqrestore(&pdc_lock, flags);
+
+ return retval;
}
/**
@@ -1197,7 +1230,7 @@
*/
int pdc_iodc_print(const unsigned char *str, unsigned count)
{
- unsigned int i;
+ unsigned int i, found = 0;
unsigned long flags;
for (i = 0; i < count;) {
@@ -1206,6 +1239,7 @@
iodc_dbuf[i+0] = '\r';
iodc_dbuf[i+1] = '\n';
i += 2;
+ found = 1;
goto print;
default:
iodc_dbuf[i] = str[i];
@@ -1222,7 +1256,7 @@
__pa(iodc_retbuf), 0, __pa(iodc_dbuf), i, 0);
spin_unlock_irqrestore(&pdc_lock, flags);
- return i;
+ return i - found;
}
#if !defined(BOOTLOADER)
@@ -1326,6 +1360,36 @@
}
/**
+ * pdc_pat_cell_info - Retrieve the cell's information.
+ * @info: The pointer to a struct pdc_pat_cell_info_rtn_block.
+ * @actcnt: The number of bytes which should be written to info.
+ * @offset: offset of the structure.
+ * @cell_number: The cell number which should be asked, or -1 for current cell.
+ *
+ * This PDC call returns information about the given cell (or all cells).
+ */
+int pdc_pat_cell_info(struct pdc_pat_cell_info_rtn_block *info,
+ unsigned long *actcnt, unsigned long offset,
+ unsigned long cell_number)
+{
+ int retval;
+ unsigned long flags;
+ struct pdc_pat_cell_info_rtn_block result;
+
+ spin_lock_irqsave(&pdc_lock, flags);
+ retval = mem_pdc_call(PDC_PAT_CELL, PDC_PAT_CELL_GET_INFO,
+ __pa(pdc_result), __pa(&result), *actcnt,
+ offset, cell_number);
+ if (!retval) {
+ *actcnt = pdc_result[0];
+ memcpy(info, &result, *actcnt);
+ }
+ spin_unlock_irqrestore(&pdc_lock, flags);
+
+ return retval;
+}
+
+/**
* pdc_pat_cpu_get_number - Retrieve the cpu number.
* @cpu_info: The return buffer.
* @hpa: The Hard Physical Address of the CPU.
@@ -1413,6 +1477,33 @@
}
/**
+ * pdc_pat_pd_get_PDC_interface_revisions - Retrieve PDC interface revisions.
+ * @legacy_rev: The legacy revision.
+ * @pat_rev: The PAT revision.
+ * @pdc_cap: The PDC capabilities.
+ *
+ */
+int pdc_pat_pd_get_pdc_revisions(unsigned long *legacy_rev,
+ unsigned long *pat_rev, unsigned long *pdc_cap)
+{
+ int retval;
+ unsigned long flags;
+
+ spin_lock_irqsave(&pdc_lock, flags);
+ retval = mem_pdc_call(PDC_PAT_PD, PDC_PAT_PD_GET_PDC_INTERF_REV,
+ __pa(pdc_result));
+ if (retval == PDC_OK) {
+ *legacy_rev = pdc_result[0];
+ *pat_rev = pdc_result[1];
+ *pdc_cap = pdc_result[2];
+ }
+ spin_unlock_irqrestore(&pdc_lock, flags);
+
+ return retval;
+}
+
+
+/**
* pdc_pat_io_pci_cfg_read - Read PCI configuration space.
* @pci_addr: PCI configuration space address for which the read request is being made.
* @pci_size: Size of read in bytes. Valid values are 1, 2, and 4.
--
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