scftorture: Count single_rpc offline failures in statistics outputgrafted

scf_torture_stats_print() aggregates each invoker thread's counters
into a local scf_statistics structure before printing, but the
n_single_rpc_ofl field is missing from the aggregation loop.  As a
result, the "single_rpc_ofl" value printed in the statistics line is
always zero, even when smp_call_function_single() invocations for the
RPC test have failed due to offline CPUs and been counted by the
invoker threads.

Add the missing accumulation so that the printed value reflects the
actual counts.

Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

1 files changed, 174 insertions, 0 deletions

diff --git a/drivers/video/fbdev/maxinefb.c b/drivers/video/fbdev/maxinefb.c
new file mode 100644
index 000000000..52528eb4d
--- /dev/null
+++ b/drivers/video/fbdev/maxinefb.c
@@ -0,0 +1,174 @@
+/*
+ *      linux/drivers/video/maxinefb.c
+ *
+ *	DECstation 5000/xx onboard framebuffer support ... derived from:
+ *	"HP300 Topcat framebuffer support (derived from macfb of all things)
+ *	Phil Blundell <philb@gnu.org> 1998", the original code can be
+ *      found in the file hpfb.c in the same directory.
+ *
+ *      DECstation related code Copyright (C) 1999,2000,2001 by
+ *      Michael Engel <engel@unix-ag.org> and
+ *      Karsten Merker <merker@linuxtag.org>.
+ *      This file is subject to the terms and conditions of the GNU General
+ *      Public License.  See the file COPYING in the main directory of this
+ *      archive for more details.
+ *
+ */
+
+/*
+ * Changes:
+ * 2001/01/27 removed debugging and testing code, fixed fb_ops
+ *            initialization which had caused a crash before,
+ *            general cleanup, first official release (KM)
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/fb.h>
+#include <video/maxinefb.h>
+
+/* bootinfo.h defines the machine type values, needed when checking */
+/* whether are really running on a maxine, KM                       */
+#include <asm/bootinfo.h>
+
+static struct fb_info fb_info;
+
+static const struct fb_var_screeninfo maxinefb_defined = {
+	.xres =		1024,
+	.yres =		768,
+	.xres_virtual =	1024,
+	.yres_virtual =	768,
+	.bits_per_pixel =8,
+	.activate =	FB_ACTIVATE_NOW,
+	.height =	-1,
+	.width =	-1,
+	.vmode =	FB_VMODE_NONINTERLACED,
+};
+
+static struct fb_fix_screeninfo maxinefb_fix __initdata = {
+	.id =		"Maxine",
+	.smem_len =	(1024*768),
+	.type =		FB_TYPE_PACKED_PIXELS,
+	.visual =	FB_VISUAL_PSEUDOCOLOR,
+	.line_length =	1024,
+};
+
+/* Handle the funny Inmos RamDAC/video controller ... */
+
+void maxinefb_ims332_write_register(int regno, register unsigned int val)
+{
+	register unsigned char *regs = (char *) MAXINEFB_IMS332_ADDRESS;
+	unsigned char *wptr;
+
+	wptr = regs + 0xa0000 + (regno << 4);
+	*((volatile unsigned int *) (regs)) = (val >> 8) & 0xff00;
+	*((volatile unsigned short *) (wptr)) = val;
+}
+
+unsigned int maxinefb_ims332_read_register(int regno)
+{
+	register unsigned char *regs = (char *) MAXINEFB_IMS332_ADDRESS;
+	unsigned char *rptr;
+	register unsigned int j, k;
+
+	rptr = regs + 0x80000 + (regno << 4);
+	j = *((volatile unsigned short *) rptr);
+	k = *((volatile unsigned short *) regs);
+
+	return (j & 0xffff) | ((k & 0xff00) << 8);
+}
+
+/* Set the palette */
+static int maxinefb_setcolreg(unsigned regno, unsigned red, unsigned green,
+			      unsigned blue, unsigned transp, struct fb_info *info)
+{
+	/* value to be written into the palette reg. */
+	unsigned long hw_colorvalue = 0;
+
+	if (regno > 255)
+		return 1;
+
+	red   >>= 8;    /* The cmap fields are 16 bits    */
+	green >>= 8;    /* wide, but the harware colormap */
+	blue  >>= 8;    /* registers are only 8 bits wide */
+
+	hw_colorvalue = (blue << 16) + (green << 8) + (red);
+
+	maxinefb_ims332_write_register(IMS332_REG_COLOR_PALETTE + regno,
+				       hw_colorvalue);
+	return 0;
+}
+
+static const struct fb_ops maxinefb_ops = {
+	.owner		= THIS_MODULE,
+	FB_DEFAULT_IOMEM_OPS,
+	.fb_setcolreg	= maxinefb_setcolreg,
+};
+
+int __init maxinefb_init(void)
+{
+	unsigned long fboff;
+	unsigned long fb_start;
+	int i;
+
+	if (fb_get_options("maxinefb", NULL))
+		return -ENODEV;
+
+	/* Validate we're on the proper machine type */
+	if (mips_machtype != MACH_DS5000_XX) {
+		return -EINVAL;
+	}
+
+	printk(KERN_INFO "Maxinefb: Personal DECstation detected\n");
+	printk(KERN_INFO "Maxinefb: initializing onboard framebuffer\n");
+
+	/* Framebuffer display memory base address */
+	fb_start = DS5000_xx_ONBOARD_FBMEM_START;
+
+	/* Clear screen */
+	for (fboff = fb_start; fboff < fb_start + 0x1ffff; fboff++)
+		*(volatile unsigned char *)fboff = 0x0;
+
+	maxinefb_fix.smem_start = fb_start;
+
+	/* erase hardware cursor */
+	for (i = 0; i < 512; i++) {
+		maxinefb_ims332_write_register(IMS332_REG_CURSOR_RAM + i,
+					       0);
+		/*
+		   if (i&0x8 == 0)
+		   maxinefb_ims332_write_register (IMS332_REG_CURSOR_RAM + i, 0x0f);
+		   else
+		   maxinefb_ims332_write_register (IMS332_REG_CURSOR_RAM + i, 0xf0);
+		 */
+	}
+
+	fb_info.fbops = &maxinefb_ops;
+	fb_info.screen_base = (char *)maxinefb_fix.smem_start;
+	fb_info.var = maxinefb_defined;
+	fb_info.fix = maxinefb_fix;
+
+	fb_alloc_cmap(&fb_info.cmap, 256, 0);
+
+	if (register_framebuffer(&fb_info) < 0)
+		return 1;
+	return 0;
+}
+
+static void __exit maxinefb_exit(void)
+{
+	unregister_framebuffer(&fb_info);
+}
+
+#ifdef MODULE
+MODULE_LICENSE("GPL");
+#endif
+module_init(maxinefb_init);
+module_exit(maxinefb_exit);
+