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Commit 61e0b28e authored by Geert Uytterhoeven's avatar Geert Uytterhoeven Committed by Linus Torvalds
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ps3fb: enhance horizontal panning on firmware 1.90 and up 



ps3fb: Enhance horizontal panning on firmware 1.90 and up:
  - On firmware 1.90 and up, L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT supports copying
    rectangles from XDR to DDR memory with different source and destination
    line lengths. Hence larger horizontal virtual resolutions can be supported
    (up to 16368 pixels).
  - As the actual frame buffer memory layout no longer matches the entries in
    ps3fb_res[], create fake struct ps3fb_ioctl_res data for the
    PS3FB_IOCTL_SCREENINFO ioctl, so user space applications that depend on it
    keep on working.

Signed-off-by: default avatarGeert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent fc7028b7

drivers/video/ps3fb.c

+60 −41
Original line number Diff line number Diff line
@@ -55,6 +55,7 @@ 
#define GPU_CMD_BUF_SIZE			(64 * 1024)

#define GPU_IOIF				(0x0d000000UL)

#define GPU_ALIGN_UP(x)				_ALIGN_UP((x), 64)

#define GPU_MAX_LINE_LENGTH			(65536 - 64)



#define PS3FB_FULL_MODE_BIT			0x80
@@ -335,7 +336,7 @@ static int ps3fb_get_res_table(u32 xres, u32 yres, int mode) 
}



static unsigned int ps3fb_find_mode(const struct fb_var_screeninfo *var,

				    u32 *line_length)

				    u32 *ddr_line_length, u32 *xdr_line_length)

{

	unsigned int i, mode;
@@ -350,19 +351,30 @@ static unsigned int ps3fb_find_mode(const struct fb_var_screeninfo *var, 
		    var->upper_margin == ps3fb_modedb[i].upper_margin &&

		    var->lower_margin == ps3fb_modedb[i].lower_margin &&

		    var->sync == ps3fb_modedb[i].sync &&

		    (var->vmode & FB_VMODE_MASK) == ps3fb_modedb[i].vmode) {

			/* Cropped broadcast modes use the full line_length */

			*line_length =

			    ps3fb_modedb[i < 10 ? i + 13 : i].xres * 4;

		    (var->vmode & FB_VMODE_MASK) == ps3fb_modedb[i].vmode)

			goto found;



	pr_debug("ps3fb_find_mode: mode not found\n");

	return 0;



found:

	/* Cropped broadcast modes use the full line length */

	*ddr_line_length = ps3fb_modedb[i < 10 ? i + 13 : i].xres * BPP;



	if (ps3_compare_firmware_version(1, 9, 0) >= 0) {

		*xdr_line_length = GPU_ALIGN_UP(max(var->xres,

						    var->xres_virtual) * BPP);

		if (*xdr_line_length > GPU_MAX_LINE_LENGTH)

			*xdr_line_length = GPU_MAX_LINE_LENGTH;

	} else

		*xdr_line_length = *ddr_line_length;



	/* Full broadcast modes have the full mode bit set */

	mode = i > 12 ? (i - 12) | PS3FB_FULL_MODE_BIT : i + 1;



	pr_debug("ps3fb_find_mode: mode %u\n", mode);

			return mode;

		}



	pr_debug("ps3fb_find_mode: mode not found\n");

	return 0;

	return mode;

}



static const struct fb_videomode *ps3fb_default_mode(int id)
@@ -385,9 +397,15 @@ static const struct fb_videomode *ps3fb_default_mode(int id) 


static void ps3fb_sync_image(struct device *dev, u64 frame_offset,

			     u64 dst_offset, u64 src_offset, u32 width,

			     u32 height, u64 line_length)

			     u32 height, u32 dst_line_length,

			     u32 src_line_length)

{

	int status;

	u64 line_length;



	line_length = dst_line_length;

	if (src_line_length != dst_line_length)

		line_length |= (u64)src_line_length << 32;



	status = lv1_gpu_context_attribute(ps3fb.context_handle,

					   L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT,
@@ -421,8 +439,8 @@ static int ps3fb_sync(struct fb_info *info, u32 frame) 
{

	struct ps3fb_par *par = info->par;

	int i, error = 0;

	u32 xres, yres;

	u64 line_length, base;

	u32 ddr_line_length, xdr_line_length;

	u64 ddr_base, xdr_base;



	acquire_console_sem();
@@ -434,15 +452,15 @@ static int ps3fb_sync(struct fb_info *info, u32 frame) 
	}



	i = par->res_index;

	xres = ps3fb_res[i].xres;

	yres = ps3fb_res[i].yres;

	xdr_line_length = info->fix.line_length;

	ddr_line_length = ps3fb_res[i].xres * BPP;

	xdr_base = frame * info->var.yres_virtual * xdr_line_length;

	ddr_base = frame * ps3fb_res[i].yres * ddr_line_length;



	line_length = xres * BPP;

	base = frame * yres * line_length;



	ps3fb_sync_image(info->device, base + par->full_offset,

			 base + par->fb_offset, base + par->pan_offset,

			 par->width, par->height, line_length);

	ps3fb_sync_image(info->device, ddr_base + par->full_offset,

			 ddr_base + par->fb_offset, xdr_base + par->pan_offset,

			 par->width, par->height, ddr_line_length,

			 xdr_line_length);



out:

	release_console_sem();
@@ -476,7 +494,7 @@ static int ps3fb_release(struct fb_info *info, int user) 


static int ps3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)

{

	u32 line_length;

	u32 xdr_line_length, ddr_line_length;

	int mode;



	dev_dbg(info->device, "var->xres:%u info->var.xres:%u\n", var->xres,
@@ -485,7 +503,7 @@ static int ps3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) 
		info->var.yres);



	/* FIXME For now we do exact matches only */

	mode = ps3fb_find_mode(var, &line_length);

	mode = ps3fb_find_mode(var, &ddr_line_length, &xdr_line_length);

	if (!mode)

		return -EINVAL;
@@ -495,7 +513,7 @@ static int ps3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) 
	if (var->yres_virtual < var->yres)

		var->yres_virtual = var->yres;



	if (var->xres_virtual > line_length / BPP) {

	if (var->xres_virtual > xdr_line_length / BPP) {

		dev_dbg(info->device,

			"Horizontal virtual screen size too large\n");

		return -EINVAL;
@@ -540,7 +558,7 @@ static int ps3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) 
	}



	/* Memory limit */

	if (var->yres_virtual * line_length > ps3fb.xdr_size) {

	if (var->yres_virtual * xdr_line_length > ps3fb.xdr_size) {

		dev_dbg(info->device, "Not enough memory\n");

		return -ENOMEM;

	}
@@ -558,15 +576,16 @@ static int ps3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) 
static int ps3fb_set_par(struct fb_info *info)

{

	struct ps3fb_par *par = info->par;

	unsigned int mode, line_length, lines, maxlines;

	unsigned int mode, ddr_line_length, xdr_line_length, lines, maxlines;

	int i;

	unsigned long offset, dst;

	unsigned long offset;

	u64 dst;



	dev_dbg(info->device, "xres:%d xv:%d yres:%d yv:%d clock:%d\n",

		info->var.xres, info->var.xres_virtual,

		info->var.yres, info->var.yres_virtual, info->var.pixclock);



	mode = ps3fb_find_mode(&info->var, &line_length);

	mode = ps3fb_find_mode(&info->var, &ddr_line_length, &xdr_line_length);

	if (!mode)

		return -EINVAL;
@@ -577,12 +596,13 @@ static int ps3fb_set_par(struct fb_info *info) 
	info->fix.smem_len = ps3fb.xdr_size;

	info->fix.xpanstep = info->var.xres_virtual > info->var.xres ? 1 : 0;

	info->fix.ypanstep = info->var.yres_virtual > info->var.yres ? 1 : 0;

	info->fix.line_length = line_length;

	info->fix.line_length = xdr_line_length;



	info->screen_base = (char __iomem *)ps3fb.xdr_ea;



	par->num_frames = info->fix.smem_len/

			  (ps3fb_res[i].xres*ps3fb_res[i].yres*BPP);

	par->num_frames = ps3fb.xdr_size /

			  max(ps3fb_res[i].yres * ddr_line_length,

			      info->var.yres_virtual * xdr_line_length);



	/* Keep the special bits we cannot set using fb_var_screeninfo */

	par->new_mode_id = (par->new_mode_id & ~PS3AV_MODE_MASK) | mode;
@@ -592,7 +612,7 @@ static int ps3fb_set_par(struct fb_info *info) 
	offset = VP_OFF(i);

	par->fb_offset = GPU_ALIGN_UP(offset);

	par->full_offset = par->fb_offset - offset;

	par->pan_offset = info->var.yoffset * line_length +

	par->pan_offset = info->var.yoffset * xdr_line_length +

			  info->var.xoffset * BPP;



	if (par->new_mode_id != par->mode_id) {
@@ -610,11 +630,11 @@ static int ps3fb_set_par(struct fb_info *info) 
	lines = ps3fb_res[i].yres * par->num_frames;

	if (par->full_offset)

		lines++;

	maxlines = ps3fb.xdr_size / line_length;

	for (dst = 0; lines; dst += maxlines * line_length) {

	maxlines = ps3fb.xdr_size / ddr_line_length;

	for (dst = 0; lines; dst += maxlines * ddr_line_length) {

		unsigned int l = min(lines, maxlines);

		ps3fb_sync_image(info->device, 0, dst, 0, ps3fb_res[i].xres, l,

				 line_length);

				 ddr_line_length, ddr_line_length);

		lines -= l;

	}
@@ -816,12 +836,11 @@ static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd, 
		{

			struct ps3fb_par *par = info->par;

			struct ps3fb_ioctl_res res;

			int i = par->res_index;

			dev_dbg(info->device, "PS3FB_IOCTL_SCREENINFO:\n");

			res.xres = ps3fb_res[i].xres;

			res.yres = ps3fb_res[i].yres;

			res.xoff = ps3fb_res[i].xoff;

			res.yoff = ps3fb_res[i].yoff;

			res.xres = info->fix.line_length / BPP;

			res.yres = info->var.yres_virtual;

			res.xoff = (res.xres - info->var.xres) / 2;

			res.yoff = (res.yres - info->var.yres) / 2;

			res.num_frames = par->num_frames;

			if (!copy_to_user(argp, &res, sizeof(res)))

				retval = 0;