Merge tag 'arm-vfp-refactor-for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux into devel-stabledevel-stable

Refactor VFP support code and reimplement in C

The VFP related changes to permit kernel mode NEON in softirq context
resulted in some issues regarding en/disabling of sofirqs from asm code,
and this made it clear that it would be better to handle more of it from
C code.

Given that we already have infrastructure that associates undefined
instruction exceptions with handler code based on value/mask pairs, we
can easily move the dispatch of VFP and NEON instructions to C code once
we reimplement the actual VFP support routine (which reasons about how
to deal with the exception and whether any emulation is needed) in C
code first.

With those out of the way, we can drop the partial decoding logic in asm
that reasons about which ISA is being used by user space, as the
remaining cases are all 32-bit ARM only. This leaves a FPE specific
routine with some iWMMXT logic that is easily duplicated in C as well,
allowing us to move the FPE asm code into the FPE asm source file, and
out of the shared entry code.

1 files changed, 17 insertions, 17 deletions

diff --git a/drivers/video/fbdev/controlfb.c b/drivers/video/fbdev/controlfb.c
index 77dbf94aae5f..82eeb139c4eb 100644
--- a/drivers/video/fbdev/controlfb.c
+++ b/drivers/video/fbdev/controlfb.c
@@ -113,14 +113,14 @@ struct fb_info_control {
 	struct fb_info		info;
 	struct fb_par_control	par;
 	u32			pseudo_palette[16];
-		
+
 	struct cmap_regs	__iomem *cmap_regs;
 	unsigned long		cmap_regs_phys;
-	
+
 	struct control_regs	__iomem *control_regs;
 	unsigned long		control_regs_phys;
 	unsigned long		control_regs_size;
-	
+
 	__u8			__iomem *frame_buffer;
 	unsigned long		frame_buffer_phys;
 	unsigned long		fb_orig_base;
@@ -196,7 +196,7 @@ static void set_control_clock(unsigned char *params)
 		while (!req.complete)
 			cuda_poll();
 	}
-#endif	
+#endif
 }
 
 /*
@@ -233,19 +233,19 @@ static void control_set_hardware(struct fb_info_control *p, struct fb_par_contro
 		if (p->par.xoffset != par->xoffset ||
 		    p->par.yoffset != par->yoffset)
 			set_screen_start(par->xoffset, par->yoffset, p);
-			
+
 		return;
 	}
-	
+
 	p->par = *par;
 	cmode = p->par.cmode;
 	r = &par->regvals;
-	
+
 	/* Turn off display */
 	out_le32(CNTRL_REG(p,ctrl), 0x400 | par->ctrl);
-	
+
 	set_control_clock(r->clock_params);
-	
+
 	RADACAL_WRITE(0x20, r->radacal_ctrl);
 	RADACAL_WRITE(0x21, p->control_use_bank2 ? 0 : 1);
 	RADACAL_WRITE(0x10, 0);
@@ -254,7 +254,7 @@ static void control_set_hardware(struct fb_info_control *p, struct fb_par_contro
 	rp = &p->control_regs->vswin;
 	for (i = 0; i < 16; ++i, ++rp)
 		out_le32(&rp->r, r->regs[i]);
-	
+
 	out_le32(CNTRL_REG(p,pitch), par->pitch);
 	out_le32(CNTRL_REG(p,mode), r->mode);
 	out_le32(CNTRL_REG(p,vram_attr), p->vram_attr);
@@ -366,7 +366,7 @@ static int read_control_sense(struct fb_info_control *p)
 	sense |= (in_le32(CNTRL_REG(p,mon_sense)) & 0x180) >> 7;
 
 	out_le32(CNTRL_REG(p,mon_sense), 077);	/* turn off drivers */
-	
+
 	return sense;
 }
 
@@ -558,9 +558,9 @@ static int control_var_to_par(struct fb_var_screeninfo *var,
 static void control_par_to_var(struct fb_par_control *par, struct fb_var_screeninfo *var)
 {
 	struct control_regints *rv;
-	
+
 	rv = (struct control_regints *) par->regvals.regs;
-	
+
 	memset(var, 0, sizeof(*var));
 	var->xres = par->xres;
 	var->yres = par->yres;
@@ -568,7 +568,7 @@ static void control_par_to_var(struct fb_par_control *par, struct fb_var_screeni
 	var->yres_virtual = par->vyres;
 	var->xoffset = par->xoffset;
 	var->yoffset = par->yoffset;
-	
+
 	switch(par->cmode) {
 	default:
 	case CMODE_8:
@@ -634,7 +634,7 @@ static int controlfb_check_var (struct fb_var_screeninfo *var, struct fb_info *i
 
 	err = control_var_to_par(var, &par, info);
 	if (err)
-		return err;	
+		return err;
 	control_par_to_var(&par, var);
 
 	return 0;
@@ -655,7 +655,7 @@ static int controlfb_set_par (struct fb_info *info)
 				 " control_var_to_par: %d.\n", err);
 		return err;
 	}
-	
+
 	control_set_hardware(p, &par);
 
 	info->fix.visual = (p->par.cmode == CMODE_8) ?
@@ -840,7 +840,7 @@ static int __init init_control(struct fb_info_control *p)
 	int full, sense, vmode, cmode, vyres;
 	struct fb_var_screeninfo var;
 	int rc;
-	
+
 	printk(KERN_INFO "controlfb: ");
 
 	full = p->total_vram == 0x400000;