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-rw-r--r--arch/x86/platform/ts5500/ts5500.c94
-rw-r--r--arch/x86/platform/uv/tlb_uv.c71
2 files changed, 92 insertions, 73 deletions
diff --git a/arch/x86/platform/ts5500/ts5500.c b/arch/x86/platform/ts5500/ts5500.c
index 9471b9456f25..baf16e72e668 100644
--- a/arch/x86/platform/ts5500/ts5500.c
+++ b/arch/x86/platform/ts5500/ts5500.c
@@ -1,7 +1,7 @@
/*
* Technologic Systems TS-5500 Single Board Computer support
*
- * Copyright (C) 2013 Savoir-faire Linux Inc.
+ * Copyright (C) 2013-2014 Savoir-faire Linux Inc.
* Vivien Didelot <vivien.didelot@savoirfairelinux.com>
*
* This program is free software; you can redistribute it and/or modify it under
@@ -15,8 +15,8 @@
* state or available options. For further information about sysfs entries, see
* Documentation/ABI/testing/sysfs-platform-ts5500.
*
- * This code actually supports the TS-5500 platform, but it may be extended to
- * support similar Technologic Systems x86-based platforms, such as the TS-5600.
+ * This code may be extended to support similar x86-based platforms.
+ * Actually, the TS-5500 and TS-5400 are supported.
*/
#include <linux/delay.h>
@@ -32,6 +32,7 @@
/* Product code register */
#define TS5500_PRODUCT_CODE_ADDR 0x74
#define TS5500_PRODUCT_CODE 0x60 /* TS-5500 product code */
+#define TS5400_PRODUCT_CODE 0x40 /* TS-5400 product code */
/* SRAM/RS-485/ADC options, and RS-485 RTS/Automatic RS-485 flags register */
#define TS5500_SRAM_RS485_ADC_ADDR 0x75
@@ -66,6 +67,7 @@
/**
* struct ts5500_sbc - TS-5500 board description
+ * @name: Board model name.
* @id: Board product ID.
* @sram: Flag for SRAM option.
* @rs485: Flag for RS-485 option.
@@ -75,6 +77,7 @@
* @jumpers: Bitfield for jumpers' state.
*/
struct ts5500_sbc {
+ const char *name;
int id;
bool sram;
bool rs485;
@@ -122,13 +125,16 @@ static int __init ts5500_detect_config(struct ts5500_sbc *sbc)
if (!request_region(TS5500_PRODUCT_CODE_ADDR, 4, "ts5500"))
return -EBUSY;
- tmp = inb(TS5500_PRODUCT_CODE_ADDR);
- if (tmp != TS5500_PRODUCT_CODE) {
- pr_err("This platform is not a TS-5500 (found ID 0x%x)\n", tmp);
+ sbc->id = inb(TS5500_PRODUCT_CODE_ADDR);
+ if (sbc->id == TS5500_PRODUCT_CODE) {
+ sbc->name = "TS-5500";
+ } else if (sbc->id == TS5400_PRODUCT_CODE) {
+ sbc->name = "TS-5400";
+ } else {
+ pr_err("ts5500: unknown product code 0x%x\n", sbc->id);
ret = -ENODEV;
goto cleanup;
}
- sbc->id = tmp;
tmp = inb(TS5500_SRAM_RS485_ADC_ADDR);
sbc->sram = tmp & TS5500_SRAM;
@@ -147,48 +153,52 @@ cleanup:
return ret;
}
-static ssize_t ts5500_show_id(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t name_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct ts5500_sbc *sbc = dev_get_drvdata(dev);
- return sprintf(buf, "0x%.2x\n", sbc->id);
+ return sprintf(buf, "%s\n", sbc->name);
}
+static DEVICE_ATTR_RO(name);
-static ssize_t ts5500_show_jumpers(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+static ssize_t id_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct ts5500_sbc *sbc = dev_get_drvdata(dev);
- return sprintf(buf, "0x%.2x\n", sbc->jumpers >> 1);
+ return sprintf(buf, "0x%.2x\n", sbc->id);
}
+static DEVICE_ATTR_RO(id);
-#define TS5500_SHOW(field) \
- static ssize_t ts5500_show_##field(struct device *dev, \
- struct device_attribute *attr, \
- char *buf) \
- { \
- struct ts5500_sbc *sbc = dev_get_drvdata(dev); \
- return sprintf(buf, "%d\n", sbc->field); \
- }
-
-TS5500_SHOW(sram)
-TS5500_SHOW(rs485)
-TS5500_SHOW(adc)
-TS5500_SHOW(ereset)
-TS5500_SHOW(itr)
+static ssize_t jumpers_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct ts5500_sbc *sbc = dev_get_drvdata(dev);
-static DEVICE_ATTR(id, S_IRUGO, ts5500_show_id, NULL);
-static DEVICE_ATTR(jumpers, S_IRUGO, ts5500_show_jumpers, NULL);
-static DEVICE_ATTR(sram, S_IRUGO, ts5500_show_sram, NULL);
-static DEVICE_ATTR(rs485, S_IRUGO, ts5500_show_rs485, NULL);
-static DEVICE_ATTR(adc, S_IRUGO, ts5500_show_adc, NULL);
-static DEVICE_ATTR(ereset, S_IRUGO, ts5500_show_ereset, NULL);
-static DEVICE_ATTR(itr, S_IRUGO, ts5500_show_itr, NULL);
+ return sprintf(buf, "0x%.2x\n", sbc->jumpers >> 1);
+}
+static DEVICE_ATTR_RO(jumpers);
+
+#define TS5500_ATTR_BOOL(_field) \
+ static ssize_t _field##_show(struct device *dev, \
+ struct device_attribute *attr, char *buf) \
+ { \
+ struct ts5500_sbc *sbc = dev_get_drvdata(dev); \
+ \
+ return sprintf(buf, "%d\n", sbc->_field); \
+ } \
+ static DEVICE_ATTR_RO(_field)
+
+TS5500_ATTR_BOOL(sram);
+TS5500_ATTR_BOOL(rs485);
+TS5500_ATTR_BOOL(adc);
+TS5500_ATTR_BOOL(ereset);
+TS5500_ATTR_BOOL(itr);
static struct attribute *ts5500_attributes[] = {
&dev_attr_id.attr,
+ &dev_attr_name.attr,
&dev_attr_jumpers.attr,
&dev_attr_sram.attr,
&dev_attr_rs485.attr,
@@ -311,12 +321,14 @@ static int __init ts5500_init(void)
if (err)
goto error;
- ts5500_dio1_pdev.dev.parent = &pdev->dev;
- if (platform_device_register(&ts5500_dio1_pdev))
- dev_warn(&pdev->dev, "DIO1 block registration failed\n");
- ts5500_dio2_pdev.dev.parent = &pdev->dev;
- if (platform_device_register(&ts5500_dio2_pdev))
- dev_warn(&pdev->dev, "DIO2 block registration failed\n");
+ if (sbc->id == TS5500_PRODUCT_CODE) {
+ ts5500_dio1_pdev.dev.parent = &pdev->dev;
+ if (platform_device_register(&ts5500_dio1_pdev))
+ dev_warn(&pdev->dev, "DIO1 block registration failed\n");
+ ts5500_dio2_pdev.dev.parent = &pdev->dev;
+ if (platform_device_register(&ts5500_dio2_pdev))
+ dev_warn(&pdev->dev, "DIO2 block registration failed\n");
+ }
if (led_classdev_register(&pdev->dev, &ts5500_led_cdev))
dev_warn(&pdev->dev, "LED registration failed\n");
diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c
index dfe605ac1bcd..3968d67d366b 100644
--- a/arch/x86/platform/uv/tlb_uv.c
+++ b/arch/x86/platform/uv/tlb_uv.c
@@ -1,7 +1,7 @@
/*
* SGI UltraViolet TLB flush routines.
*
- * (c) 2008-2012 Cliff Wickman <cpw@sgi.com>, SGI.
+ * (c) 2008-2014 Cliff Wickman <cpw@sgi.com>, SGI.
*
* This code is released under the GNU General Public License version 2 or
* later.
@@ -451,7 +451,7 @@ static inline unsigned long long cycles_2_ns(unsigned long long cyc)
/*
* The reverse of the above; converts a duration in ns to a duration in cycles.
- */
+ */
static inline unsigned long long ns_2_cycles(unsigned long long ns)
{
struct cyc2ns_data *data = cyc2ns_read_begin();
@@ -563,7 +563,7 @@ static int uv1_wait_completion(struct bau_desc *bau_desc,
* UV2 could have an extra bit of status in the ACTIVATION_STATUS_2 register.
* But not currently used.
*/
-static unsigned long uv2_read_status(unsigned long offset, int rshft, int desc)
+static unsigned long uv2_3_read_status(unsigned long offset, int rshft, int desc)
{
unsigned long descriptor_status;
@@ -606,7 +606,7 @@ int handle_uv2_busy(struct bau_control *bcp)
return FLUSH_GIVEUP;
}
-static int uv2_wait_completion(struct bau_desc *bau_desc,
+static int uv2_3_wait_completion(struct bau_desc *bau_desc,
unsigned long mmr_offset, int right_shift,
struct bau_control *bcp, long try)
{
@@ -616,7 +616,7 @@ static int uv2_wait_completion(struct bau_desc *bau_desc,
long busy_reps = 0;
struct ptc_stats *stat = bcp->statp;
- descriptor_stat = uv2_read_status(mmr_offset, right_shift, desc);
+ descriptor_stat = uv2_3_read_status(mmr_offset, right_shift, desc);
/* spin on the status MMR, waiting for it to go idle */
while (descriptor_stat != UV2H_DESC_IDLE) {
@@ -658,8 +658,7 @@ static int uv2_wait_completion(struct bau_desc *bau_desc,
/* not to hammer on the clock */
busy_reps = 0;
ttm = get_cycles();
- if ((ttm - bcp->send_message) >
- bcp->timeout_interval)
+ if ((ttm - bcp->send_message) > bcp->timeout_interval)
return handle_uv2_busy(bcp);
}
/*
@@ -667,8 +666,7 @@ static int uv2_wait_completion(struct bau_desc *bau_desc,
*/
cpu_relax();
}
- descriptor_stat = uv2_read_status(mmr_offset, right_shift,
- desc);
+ descriptor_stat = uv2_3_read_status(mmr_offset, right_shift, desc);
}
bcp->conseccompletes++;
return FLUSH_COMPLETE;
@@ -679,8 +677,7 @@ static int uv2_wait_completion(struct bau_desc *bau_desc,
* which register to read and position in that register based on cpu in
* current hub.
*/
-static int wait_completion(struct bau_desc *bau_desc,
- struct bau_control *bcp, long try)
+static int wait_completion(struct bau_desc *bau_desc, struct bau_control *bcp, long try)
{
int right_shift;
unsigned long mmr_offset;
@@ -695,11 +692,9 @@ static int wait_completion(struct bau_desc *bau_desc,
}
if (bcp->uvhub_version == 1)
- return uv1_wait_completion(bau_desc, mmr_offset, right_shift,
- bcp, try);
+ return uv1_wait_completion(bau_desc, mmr_offset, right_shift, bcp, try);
else
- return uv2_wait_completion(bau_desc, mmr_offset, right_shift,
- bcp, try);
+ return uv2_3_wait_completion(bau_desc, mmr_offset, right_shift, bcp, try);
}
/*
@@ -888,7 +883,7 @@ int uv_flush_send_and_wait(struct cpumask *flush_mask, struct bau_control *bcp,
struct ptc_stats *stat = bcp->statp;
struct bau_control *hmaster = bcp->uvhub_master;
struct uv1_bau_msg_header *uv1_hdr = NULL;
- struct uv2_bau_msg_header *uv2_hdr = NULL;
+ struct uv2_3_bau_msg_header *uv2_3_hdr = NULL;
if (bcp->uvhub_version == 1) {
uv1 = 1;
@@ -902,27 +897,28 @@ int uv_flush_send_and_wait(struct cpumask *flush_mask, struct bau_control *bcp,
if (uv1)
uv1_hdr = &bau_desc->header.uv1_hdr;
else
- uv2_hdr = &bau_desc->header.uv2_hdr;
+ /* uv2 and uv3 */
+ uv2_3_hdr = &bau_desc->header.uv2_3_hdr;
do {
if (try == 0) {
if (uv1)
uv1_hdr->msg_type = MSG_REGULAR;
else
- uv2_hdr->msg_type = MSG_REGULAR;
+ uv2_3_hdr->msg_type = MSG_REGULAR;
seq_number = bcp->message_number++;
} else {
if (uv1)
uv1_hdr->msg_type = MSG_RETRY;
else
- uv2_hdr->msg_type = MSG_RETRY;
+ uv2_3_hdr->msg_type = MSG_RETRY;
stat->s_retry_messages++;
}
if (uv1)
uv1_hdr->sequence = seq_number;
else
- uv2_hdr->sequence = seq_number;
+ uv2_3_hdr->sequence = seq_number;
index = (1UL << AS_PUSH_SHIFT) | bcp->uvhub_cpu;
bcp->send_message = get_cycles();
@@ -1080,8 +1076,10 @@ static int set_distrib_bits(struct cpumask *flush_mask, struct bau_control *bcp,
* done. The returned pointer is valid till preemption is re-enabled.
*/
const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask,
- struct mm_struct *mm, unsigned long start,
- unsigned long end, unsigned int cpu)
+ struct mm_struct *mm,
+ unsigned long start,
+ unsigned long end,
+ unsigned int cpu)
{
int locals = 0;
int remotes = 0;
@@ -1268,6 +1266,7 @@ void uv_bau_message_interrupt(struct pt_regs *regs)
if (bcp->uvhub_version == 2)
process_uv2_message(&msgdesc, bcp);
else
+ /* no error workaround for uv1 or uv3 */
bau_process_message(&msgdesc, bcp, 1);
msg++;
@@ -1325,8 +1324,12 @@ static void __init enable_timeouts(void)
*/
mmr_image |= (1L << SOFTACK_MSHIFT);
if (is_uv2_hub()) {
+ /* do not touch the legacy mode bit */
/* hw bug workaround; do not use extended status */
mmr_image &= ~(1L << UV2_EXT_SHFT);
+ } else if (is_uv3_hub()) {
+ mmr_image &= ~(1L << PREFETCH_HINT_SHFT);
+ mmr_image |= (1L << SB_STATUS_SHFT);
}
write_mmr_misc_control(pnode, mmr_image);
}
@@ -1476,7 +1479,7 @@ static ssize_t ptc_proc_write(struct file *file, const char __user *user,
return count;
}
- if (strict_strtol(optstr, 10, &input_arg) < 0) {
+ if (kstrtol(optstr, 10, &input_arg) < 0) {
printk(KERN_DEBUG "%s is invalid\n", optstr);
return -EINVAL;
}
@@ -1692,7 +1695,7 @@ static void activation_descriptor_init(int node, int pnode, int base_pnode)
struct bau_desc *bau_desc;
struct bau_desc *bd2;
struct uv1_bau_msg_header *uv1_hdr;
- struct uv2_bau_msg_header *uv2_hdr;
+ struct uv2_3_bau_msg_header *uv2_3_hdr;
struct bau_control *bcp;
/*
@@ -1739,15 +1742,15 @@ static void activation_descriptor_init(int node, int pnode, int base_pnode)
*/
} else {
/*
- * BIOS uses legacy mode, but UV2 hardware always
+ * BIOS uses legacy mode, but uv2 and uv3 hardware always
* uses native mode for selective broadcasts.
*/
- uv2_hdr = &bd2->header.uv2_hdr;
- uv2_hdr->swack_flag = 1;
- uv2_hdr->base_dest_nasid =
+ uv2_3_hdr = &bd2->header.uv2_3_hdr;
+ uv2_3_hdr->swack_flag = 1;
+ uv2_3_hdr->base_dest_nasid =
UV_PNODE_TO_NASID(base_pnode);
- uv2_hdr->dest_subnodeid = UV_LB_SUBNODEID;
- uv2_hdr->command = UV_NET_ENDPOINT_INTD;
+ uv2_3_hdr->dest_subnodeid = UV_LB_SUBNODEID;
+ uv2_3_hdr->command = UV_NET_ENDPOINT_INTD;
}
}
for_each_present_cpu(cpu) {
@@ -1858,6 +1861,7 @@ static int calculate_destination_timeout(void)
ts_ns *= (mult1 * mult2);
ret = ts_ns / 1000;
} else {
+ /* same destination timeout for uv2 and uv3 */
/* 4 bits 0/1 for 10/80us base, 3 bits of multiplier */
mmr_image = uv_read_local_mmr(UVH_LB_BAU_MISC_CONTROL);
mmr_image = (mmr_image & UV_SA_MASK) >> UV_SA_SHFT;
@@ -2012,8 +2016,10 @@ static int scan_sock(struct socket_desc *sdp, struct uvhub_desc *bdp,
bcp->uvhub_version = 1;
else if (is_uv2_hub())
bcp->uvhub_version = 2;
+ else if (is_uv3_hub())
+ bcp->uvhub_version = 3;
else {
- printk(KERN_EMERG "uvhub version not 1 or 2\n");
+ printk(KERN_EMERG "uvhub version not 1, 2 or 3\n");
return 1;
}
bcp->uvhub_master = *hmasterp;
@@ -2138,9 +2144,10 @@ static int __init uv_bau_init(void)
}
vector = UV_BAU_MESSAGE;
- for_each_possible_blade(uvhub)
+ for_each_possible_blade(uvhub) {
if (uv_blade_nr_possible_cpus(uvhub))
init_uvhub(uvhub, vector, uv_base_pnode);
+ }
alloc_intr_gate(vector, uv_bau_message_intr1);
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