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Commit 310d8c11 authored by Geert Uytterhoeven's avatar Geert Uytterhoeven Committed by Linus Torvalds
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[PATCH] ps3: Virtual Frame Buffer Driver 



Add the PS3 Virtual Frame Buffer Driver.

As the actual graphics hardware cannot be accessed directly by Linux, ps3fb
uses a virtual frame buffer in main memory.  The actual screen image is copied
to graphics memory by the GPU on every vertical blank, by making a hypervisor
call.

Signed-off-by: default avatarGeert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: James Simmons <jsimmons@infradead.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent fbdb3e5b

drivers/video/Kconfig

+20 −0
Original line number Diff line number Diff line
@@ -1598,6 +1598,26 @@ config FB_IBM_GXT4500 
	  Say Y here to enable support for the IBM GXT4500P display

	  adaptor, found on some IBM System P (pSeries) machines.



config FB_PS3

	bool "PS3 GPU framebuffer driver"

	depends on FB && PPC_PS3

	select PS3_PS3AV

	select FB_CFB_FILLRECT

	select FB_CFB_COPYAREA

	select FB_CFB_IMAGEBLIT

	---help---

	  Include support for the virtual frame buffer in the PS3 platform.



config FB_PS3_DEFAULT_SIZE_M

	int "PS3 default frame buffer size (in MiB)"

	depends on FB_PS3

	default 18

	---help---

	  This is the default size (in MiB) of the virtual frame buffer in

	  the PS3.

	  The default value can be overridden on the kernel command line

	  using the "ps3fb" option (e.g. "ps3fb=9M");



config FB_VIRTUAL

	tristate "Virtual Frame Buffer support (ONLY FOR TESTING!)"

	depends on FB

drivers/video/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -97,6 +97,7 @@ obj-$(CONFIG_FB_S3C2410) += s3c2410fb.o 
obj-$(CONFIG_FB_PNX4008_DUM)	  += pnx4008/

obj-$(CONFIG_FB_PNX4008_DUM_RGB)  += pnx4008/

obj-$(CONFIG_FB_IBM_GXT4500)	  += gxt4500.o

obj-$(CONFIG_FB_PS3)		  += ps3fb.o



# Platform or fallback drivers go here

obj-$(CONFIG_FB_VESA)             += vesafb.o

drivers/video/ps3fb.c

0 → 100644
+1229 −0

File added.

Preview size limit exceeded, changes collapsed.

include/asm-powerpc/Kbuild

+1 −0
Original line number Diff line number Diff line
@@ -23,6 +23,7 @@ header-y += linkage.h 
header-y += resource.h

header-y += sigcontext.h

header-y += statfs.h

header-y += ps3fb.h



unifdef-y += a.out.h

unifdef-y += asm-compat.h

include/asm-powerpc/ps3fb.h

0 → 100644
+44 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2006 Sony Computer Entertainment Inc.

 * Copyright 2006, 2007 Sony Corporation

 *

 * 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; version 2 of the License.

 *

 * This program is distributed in the hope that it will be useful, but

 * WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License along

 * with this program; if not, write to the Free Software Foundation, Inc.,

 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

 */



#ifndef _ASM_POWERPC_PS3FB_H_

#define _ASM_POWERPC_PS3FB_H_



#include <linux/ioctl.h>



/* ioctl */

#define PS3FB_IOCTL_SETMODE       _IOW('r',  1, int) /* set video mode */

#define PS3FB_IOCTL_GETMODE       _IOR('r',  2, int) /* get video mode */

#define PS3FB_IOCTL_SCREENINFO    _IOR('r',  3, int) /* get screen info */

#define PS3FB_IOCTL_ON            _IO('r', 4)        /* use IOCTL_FSEL */

#define PS3FB_IOCTL_OFF           _IO('r', 5)        /* return to normal-flip */

#define PS3FB_IOCTL_FSEL          _IOW('r', 6, int)  /* blit and flip request */



#ifndef FBIO_WAITFORVSYNC

#define FBIO_WAITFORVSYNC         _IOW('F', 0x20, __u32) /* wait for vsync */

#endif



struct ps3fb_ioctl_res {

	__u32 xres; /* frame buffer x_size */

	__u32 yres; /* frame buffer y_size */

	__u32 xoff; /* margine x  */

	__u32 yoff; /* margine y */

	__u32 num_frames; /* num of frame buffers */

};



#endif /* _ASM_POWERPC_PS3FB_H_ */