[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: Geert 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: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1229 insertions, 0 deletions

diff --git a/drivers/video/ps3fb.c b/drivers/video/ps3fb.c
new file mode 100644
index 000000000000..81e43cda7d8b
--- /dev/null
+++ b/drivers/video/ps3fb.c
@@ -0,0 +1,1229 @@
+/*
+ *  linux/drivers/video/ps3fb.c -- PS3 GPU frame buffer device
+ *
+ *      Copyright (C) 2006 Sony Computer Entertainment Inc.
+ *      Copyright 2006, 2007 Sony Corporation
+ *
+ *  This file is based on :
+ *
+ *  linux/drivers/video/vfb.c -- Virtual frame buffer device
+ *
+ *      Copyright (C) 2002 James Simmons
+ *
+ *      Copyright (C) 1997 Geert Uytterhoeven
+ *
+ *  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.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/tty.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/console.h>
+#include <linux/ioctl.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+
+#include <asm/uaccess.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <asm/time.h>
+
+#include <asm/abs_addr.h>
+#include <asm/lv1call.h>
+#include <asm/ps3av.h>
+#include <asm/ps3fb.h>
+#include <asm/ps3.h>
+
+#ifdef PS3FB_DEBUG
+#define DPRINTK(fmt, args...) printk("%s: " fmt, __FUNCTION__ , ##args)
+#else
+#define DPRINTK(fmt, args...)
+#endif
+
+#define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC    0x101
+#define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP    0x102
+#define L1GPU_CONTEXT_ATTRIBUTE_FB_SETUP        0x600
+#define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT         0x601
+#define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT_SYNC    0x602
+
+#define L1GPU_FB_BLIT_WAIT_FOR_COMPLETION       (1ULL << 32)
+
+#define L1GPU_DISPLAY_SYNC_HSYNC                1
+#define L1GPU_DISPLAY_SYNC_VSYNC                2
+
+#define DDR_SIZE                                (0)     /* used no ddr */
+#define GPU_OFFSET                              (64 * 1024)
+#define GPU_IOIF                                (0x0d000000UL)
+
+#define PS3FB_FULL_MODE_BIT                     0x80
+
+#define GPU_INTR_STATUS_VSYNC_0                 0       /* vsync on head A */
+#define GPU_INTR_STATUS_VSYNC_1                 1       /* vsync on head B */
+#define GPU_INTR_STATUS_FLIP_0                  3       /* flip head A */
+#define GPU_INTR_STATUS_FLIP_1                  4       /* flip head B */
+#define GPU_INTR_STATUS_QUEUE_0                 5       /* queue head A */
+#define GPU_INTR_STATUS_QUEUE_1                 6       /* queue head B */
+
+#define GPU_DRIVER_INFO_VERSION                 0x211
+
+/* gpu internals */
+struct display_head {
+        u64 be_time_stamp;
+        u32 status;
+        u32 offset;
+        u32 res1;
+        u32 res2;
+        u32 field;
+        u32 reserved1;
+
+        u64 res3;
+        u32 raster;
+
+        u64 vblank_count;
+        u32 field_vsync;
+        u32 reserved2;
+};
+
+struct gpu_irq {
+        u32 irq_outlet;
+        u32 status;
+        u32 mask;
+        u32 video_cause;
+        u32 graph_cause;
+        u32 user_cause;
+
+        u32 res1;
+        u64 res2;
+
+        u32 reserved[4];
+};
+
+struct gpu_driver_info {
+        u32 version_driver;
+        u32 version_gpu;
+        u32 memory_size;
+        u32 hardware_channel;
+
+        u32 nvcore_frequency;
+        u32 memory_frequency;
+
+        u32 reserved[1063];
+        struct display_head display_head[8];
+        struct gpu_irq irq;
+};
+
+struct ps3fb_priv {
+        unsigned int irq_no;
+        void *dev;
+
+        u64 context_handle, memory_handle;
+        void *xdr_ea;
+        struct gpu_driver_info *dinfo;
+        struct semaphore sem;
+        u32 res_index;
+
+        u64 vblank_count;       /* frame count */
+        wait_queue_head_t wait_vsync;
+
+        u32 num_frames;         /* num of frame buffers */
+        atomic_t ext_flip;      /* on/off flip with vsync */
+        atomic_t f_count;       /* fb_open count */
+        int is_blanked;
+};
+static struct ps3fb_priv ps3fb;
+
+struct ps3fb_res_table {
+        u32 xres;
+        u32 yres;
+        u32 xoff;
+        u32 yoff;
+        u32 type;
+};
+#define PS3FB_RES_FULL 1
+static const struct ps3fb_res_table ps3fb_res[] = {
+        /* res_x,y   margin_x,y  full */
+        {  720,  480,  72,  48 , 0},
+        {  720,  576,  72,  58 , 0},
+        { 1280,  720,  78,  38 , 0},
+        { 1920, 1080, 116,  58 , 0},
+        /* full mode */
+        {  720,  480,   0,   0 , PS3FB_RES_FULL},
+        {  720,  576,   0,   0 , PS3FB_RES_FULL},
+        { 1280,  720,   0,   0 , PS3FB_RES_FULL},
+        { 1920, 1080,   0,   0 , PS3FB_RES_FULL},
+        /* vesa: normally full mode */
+        { 1280,  768,   0,   0 , 0},
+        { 1280, 1024,   0,   0 , 0},
+        { 1920, 1200,   0,   0 , 0},
+        {    0,    0,   0,   0 , 0} };
+
+/* default resolution */
+#define GPU_RES_INDEX 0         /* 720 x 480 */
+
+static const struct fb_videomode ps3fb_modedb[] = {
+    /* 60 Hz broadcast modes (modes "1" to "5") */
+    {
+        /* 480i */
+        "480i", 60, 576, 384, 74074, 130, 89, 78, 57, 63, 6,
+        FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
+    },    {
+        /* 480p */
+        "480p", 60, 576, 384, 37037, 130, 89, 78, 57, 63, 6,
+        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
+    },    {
+        /* 720p */
+        "720p", 60, 1124, 644, 13481, 298, 148, 57, 44, 80, 5,
+        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
+    },    {
+        /* 1080i */
+        "1080i", 60, 1688, 964, 13481, 264, 160, 94, 62, 88, 5,
+        FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
+    },    {
+        /* 1080p */
+        "1080p", 60, 1688, 964, 6741, 264, 160, 94, 62, 88, 5,
+        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
+    },
+
+    /* 50 Hz broadcast modes (modes "6" to "10") */
+    {
+        /* 576i */
+        "576i", 50, 576, 460, 74074, 142, 83, 97, 63, 63, 5,
+        FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
+    },    {
+        /* 576p */
+        "576p", 50, 576, 460, 37037, 142, 83, 97, 63, 63, 5,
+        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
+    },    {
+        /* 720p */
+        "720p", 50, 1124, 644, 13468, 298, 478, 57, 44, 80, 5,
+        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
+    },    {
+        /* 1080 */
+        "1080i", 50, 1688, 964, 13468, 264, 600, 94, 62, 88, 5,
+        FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
+    },    {
+        /* 1080p */
+        "1080p", 50, 1688, 964, 6734, 264, 600, 94, 62, 88, 5,
+        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
+    },
+
+    /* VESA modes (modes "11" to "13") */
+    {
+        /* WXGA */
+        "wxga", 60, 1280, 768, 12924, 160, 24, 29, 3, 136, 6,
+        0, FB_VMODE_NONINTERLACED,
+        FB_MODE_IS_VESA
+    }, {
+        /* SXGA */
+        "sxga", 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3,
+        FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED,
+        FB_MODE_IS_VESA
+    }, {
+        /* WUXGA */
+        "wuxga", 60, 1920, 1200, 6494, 80, 48, 26, 3, 32, 6,
+        FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED,
+        FB_MODE_IS_VESA
+    },
+
+    /* 60 Hz broadcast modes (full resolution versions of modes "1" to "5") */
+    {
+        /* 480if */
+        "480if", 60, 720, 480, 74074, 58, 17, 30, 9, 63, 6,
+        FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
+    }, {
+        /* 480pf */
+        "480pf", 60, 720, 480, 37037, 58, 17, 30, 9, 63, 6,
+        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
+    }, {
+        /* 720pf */
+        "720pf", 60, 1280, 720, 13481, 220, 70, 19, 6, 80, 5,
+        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
+    }, {
+        /* 1080if */
+        "1080if", 60, 1920, 1080, 13481, 148, 44, 36, 4, 88, 5,
+        FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
+    }, {
+        /* 1080pf */
+        "1080pf", 60, 1920, 1080, 6741, 148, 44, 36, 4, 88, 5,
+        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
+    },
+
+    /* 50 Hz broadcast modes (full resolution versions of modes "6" to "10") */
+    {
+        /* 576if */
+        "576if", 50, 720, 576, 74074, 70, 11, 39, 5, 63, 5,
+        FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
+    }, {
+        /* 576pf */
+        "576pf", 50, 720, 576, 37037, 70, 11, 39, 5, 63, 5,
+        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
+    }, {
+        /* 720pf */
+        "720pf", 50, 1280, 720, 13468, 220, 400, 19, 6, 80, 5,
+        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
+    }, {
+        /* 1080if */
+        "1080f", 50, 1920, 1080, 13468, 148, 484, 36, 4, 88, 5,
+        FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
+    }, {
+        /* 1080pf */
+        "1080pf", 50, 1920, 1080, 6734, 148, 484, 36, 4, 88, 5,
+        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
+    }
+};
+
+
+#define HEAD_A
+#define HEAD_B
+
+#define X_OFF(i)        (ps3fb_res[i].xoff)     /* left/right margin (pixel) */
+#define Y_OFF(i)        (ps3fb_res[i].yoff)     /* top/bottom margin (pixel) */
+#define WIDTH(i)        (ps3fb_res[i].xres)     /* width of FB */
+#define HEIGHT(i)       (ps3fb_res[i].yres)     /* height of FB */
+#define BPP     4               /* number of bytes per pixel */
+#define VP_OFF(i)       (WIDTH(i) * Y_OFF(i) * BPP + X_OFF(i) * BPP)
+#define FB_OFF(i)       (GPU_OFFSET - VP_OFF(i) % GPU_OFFSET)
+
+static int ps3fb_mode = 0;
+module_param(ps3fb_mode, bool, 0);
+
+static char *mode_option __initdata = NULL;
+
+
+static int ps3fb_get_res_table(u32 xres, u32 yres)
+{
+        int full_mode;
+        unsigned int i;
+        u32 x, y, f;
+
+        full_mode = (ps3fb_mode & PS3FB_FULL_MODE_BIT) ? PS3FB_RES_FULL : 0;
+        for (i = 0;; i++) {
+                x = ps3fb_res[i].xres;
+                y = ps3fb_res[i].yres;
+                f = ps3fb_res[i].type;
+
+                if (!x) {
+                        DPRINTK("ERROR: ps3fb_get_res_table()\n");
+                        return -1;
+                }
+
+                if (full_mode == PS3FB_RES_FULL && f != PS3FB_RES_FULL)
+                        continue;
+
+                if (x == xres && (yres == 0 || y == yres))
+                        break;
+
+                x = x - 2 * ps3fb_res[i].xoff;
+                y = y - 2 * ps3fb_res[i].yoff;
+                if (x == xres && (yres == 0 || y == yres))
+                        break;
+        }
+        return i;
+}
+
+static unsigned int ps3fb_find_mode(const struct fb_var_screeninfo *var,
+                                    u32 *line_length)
+{
+        unsigned int i, mode;
+
+        for (i = 0; i < ARRAY_SIZE(ps3fb_modedb); i++)
+                if (var->xres == ps3fb_modedb[i].xres &&
+                    var->yres == ps3fb_modedb[i].yres &&
+                    var->pixclock == ps3fb_modedb[i].pixclock &&
+                    var->hsync_len == ps3fb_modedb[i].hsync_len &&
+                    var->vsync_len == ps3fb_modedb[i].vsync_len &&
+                    var->left_margin == ps3fb_modedb[i].left_margin &&
+                    var->right_margin == ps3fb_modedb[i].right_margin &&
+                    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;
+                        /* Full broadcast modes have the full mode bit set */
+                        mode = i > 12 ? (i - 12) | PS3FB_FULL_MODE_BIT : i + 1;
+
+                        DPRINTK("ps3fb_find_mode: mode %u\n", mode);
+                        return mode;
+                }
+
+        DPRINTK("ps3fb_find_mode: mode not found\n");
+        return 0;
+
+}
+
+static const struct fb_videomode *ps3fb_default_mode(void)
+{
+        u32 mode = ps3fb_mode & PS3AV_MODE_MASK;
+        u32 flags;
+
+        if (mode < 1 || mode > 13)
+                return NULL;
+
+        flags = ps3fb_mode & ~PS3AV_MODE_MASK;
+
+        if (mode <= 10 && flags & PS3FB_FULL_MODE_BIT) {
+                /* Full broadcast mode */
+                return &ps3fb_modedb[mode + 12];
+        }
+
+        return &ps3fb_modedb[mode - 1];
+}
+
+static int ps3fb_sync(u32 frame)
+{
+        int i, status;
+        u32 xres, yres;
+        u64 fb_ioif, offset;
+
+        i = ps3fb.res_index;
+        xres = ps3fb_res[i].xres;
+        yres = ps3fb_res[i].yres;
+
+        if (frame > ps3fb.num_frames - 1) {
+                printk(KERN_WARNING "%s: invalid frame number (%u)\n",
+                       __FUNCTION__, frame);
+                return -EINVAL;
+        }
+        offset = xres * yres * BPP * frame;
+
+        fb_ioif = GPU_IOIF + FB_OFF(i) + offset;
+        status = lv1_gpu_context_attribute(ps3fb.context_handle,
+                                           L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT,
+                                           offset, fb_ioif,
+                                           L1GPU_FB_BLIT_WAIT_FOR_COMPLETION |
+                                           (xres << 16) | yres,
+                                           xres * BPP); /* line_length */
+        if (status)
+                printk(KERN_ERR "%s: lv1_gpu_context_attribute FB_BLIT failed: %d\n",
+                       __FUNCTION__, status);
+#ifdef HEAD_A
+        status = lv1_gpu_context_attribute(ps3fb.context_handle,
+                                           L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
+                                           0, offset, 0, 0);
+        if (status)
+                printk(KERN_ERR "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
+                       __FUNCTION__, status);
+#endif
+#ifdef HEAD_B
+        status = lv1_gpu_context_attribute(ps3fb.context_handle,
+                                           L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
+                                           1, offset, 0, 0);
+        if (status)
+                printk(KERN_ERR "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
+                       __FUNCTION__, status);
+#endif
+        return 0;
+}
+
+
+static int ps3fb_open(struct fb_info *info, int user)
+{
+        atomic_inc(&ps3fb.f_count);
+        return 0;
+}
+
+static int ps3fb_release(struct fb_info *info, int user)
+{
+        if (atomic_dec_and_test(&ps3fb.f_count)) {
+                if (atomic_read(&ps3fb.ext_flip)) {
+                        atomic_set(&ps3fb.ext_flip, 0);
+                        ps3fb_sync(0);  /* single buffer */
+                }
+        }
+        return 0;
+}
+
+    /*
+     *  Setting the video mode has been split into two parts.
+     *  First part, xxxfb_check_var, must not write anything
+     *  to hardware, it should only verify and adjust var.
+     *  This means it doesn't alter par but it does use hardware
+     *  data from it to check this var.
+     */
+
+static int ps3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
+{
+        u32 line_length;
+        int mode;
+        int i;
+
+        DPRINTK("var->xres:%u info->var.xres:%u\n", var->xres, info->var.xres);
+        DPRINTK("var->yres:%u info->var.yres:%u\n", var->yres, info->var.yres);
+
+        /* FIXME For now we do exact matches only */
+        mode = ps3fb_find_mode(var, &line_length);
+        if (!mode)
+                return -EINVAL;
+
+        /*
+         *  FB_VMODE_CONUPDATE and FB_VMODE_SMOOTH_XPAN are equal!
+         *  as FB_VMODE_SMOOTH_XPAN is only used internally
+         */
+
+        if (var->vmode & FB_VMODE_CONUPDATE) {
+                var->vmode |= FB_VMODE_YWRAP;
+                var->xoffset = info->var.xoffset;
+                var->yoffset = info->var.yoffset;
+        }
+
+        /* Virtual screen and panning are not supported */
+        if (var->xres_virtual > var->xres || var->yres_virtual > var->yres ||
+            var->xoffset || var->yoffset) {
+                DPRINTK("Virtual screen and panning are not supported\n");
+                return -EINVAL;
+        }
+
+        var->xres_virtual = var->xres;
+        var->yres_virtual = var->yres;
+
+        /* We support ARGB8888 only */
+        if (var->bits_per_pixel > 32 || var->grayscale ||
+            var->red.offset > 16 || var->green.offset > 8 ||
+            var->blue.offset > 0 || var->transp.offset > 24 ||
+            var->red.length > 8 || var->green.length > 8 ||
+            var->blue.length > 8 || var->transp.length > 8 ||
+            var->red.msb_right || var->green.msb_right ||
+            var->blue.msb_right || var->transp.msb_right || var->nonstd) {
+                DPRINTK("We support ARGB8888 only\n");
+                return -EINVAL;
+        }
+
+        var->bits_per_pixel = 32;
+        var->red.offset = 16;
+        var->green.offset = 8;
+        var->blue.offset = 0;
+        var->transp.offset = 24;
+        var->red.length = 8;
+        var->green.length = 8;
+        var->blue.length = 8;
+        var->transp.length = 8;
+        var->red.msb_right = 0;
+        var->green.msb_right = 0;
+        var->blue.msb_right = 0;
+        var->transp.msb_right = 0;
+
+        /* Rotation is not supported */
+        if (var->rotate) {
+                DPRINTK("Rotation is not supported\n");
+                return -EINVAL;
+        }
+
+        /* Memory limit */
+        i = ps3fb_get_res_table(var->xres, var->yres);
+        if (ps3fb_res[i].xres*ps3fb_res[i].yres*BPP > ps3fb_videomemory.size) {
+                DPRINTK("Not enough memory\n");
+                return -ENOMEM;
+        }
+
+        var->height = -1;
+        var->width = -1;
+
+        return 0;
+}
+
+    /*
+     * This routine actually sets the video mode.
+     */
+
+static int ps3fb_set_par(struct fb_info *info)
+{
+        unsigned int mode;
+        int i;
+        unsigned long offset;
+        static int first = 1;
+
+        DPRINTK("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);
+        i = ps3fb_get_res_table(info->var.xres, info->var.yres);
+        ps3fb.res_index = i;
+
+        mode = ps3fb_find_mode(&info->var, &info->fix.line_length);
+        if (!mode)
+                return -EINVAL;
+
+        offset = FB_OFF(i) + VP_OFF(i);
+        info->fix.smem_len = ps3fb_videomemory.size - offset;
+        info->screen_base = (char __iomem *)ps3fb.xdr_ea + offset;
+        memset(ps3fb.xdr_ea, 0, ps3fb_videomemory.size);
+
+        ps3fb.num_frames = ps3fb_videomemory.size/
+                           (ps3fb_res[i].xres*ps3fb_res[i].yres*BPP);
+
+        /* Keep the special bits we cannot set using fb_var_screeninfo */
+        ps3fb_mode = (ps3fb_mode & ~PS3AV_MODE_MASK) | mode;
+
+        if (ps3av_set_video_mode(ps3fb_mode, first))
+                return -EINVAL;
+
+        first = 0;
+        return 0;
+}
+
+    /*
+     *  Set a single color register. The values supplied are already
+     *  rounded down to the hardware's capabilities (according to the
+     *  entries in the var structure). Return != 0 for invalid regno.
+     */
+
+static int ps3fb_setcolreg(unsigned int regno, unsigned int red,
+                           unsigned int green, unsigned int blue,
+                           unsigned int transp, struct fb_info *info)
+{
+        if (regno >= 16)
+                return 1;
+
+        red >>= 8;
+        green >>= 8;
+        blue >>= 8;
+        transp >>= 8;
+
+        ((u32 *)info->pseudo_palette)[regno] = transp << 24 | red << 16 |
+                                               green << 8 | blue;
+        return 0;
+}
+
+    /*
+     *  As we have a virtual frame buffer, we need our own mmap function
+     */
+
+static int ps3fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
+{
+        unsigned long size, offset;
+        int i;
+
+        i = ps3fb_get_res_table(info->var.xres, info->var.yres);
+        if (i == -1)
+                return -EINVAL;
+
+        size = vma->vm_end - vma->vm_start;
+        offset = vma->vm_pgoff << PAGE_SHIFT;
+        if (offset + size > info->fix.smem_len)
+                return -EINVAL;
+
+        offset += info->fix.smem_start + FB_OFF(i) + VP_OFF(i);
+        if (remap_pfn_range(vma, vma->vm_start, offset >> PAGE_SHIFT,
+                            size, vma->vm_page_prot))
+                return -EAGAIN;
+
+        printk(KERN_DEBUG "ps3fb: mmap framebuffer P(%lx)->V(%lx)\n", offset,
+               vma->vm_start);
+        return 0;
+}
+
+    /*
+     * Blank the display
+     */
+
+static int ps3fb_blank(int blank, struct fb_info *info)
+{
+        int retval;
+
+        DPRINTK("%s: blank:%d\n", __FUNCTION__, blank);
+        switch (blank) {
+        case FB_BLANK_POWERDOWN:
+        case FB_BLANK_HSYNC_SUSPEND:
+        case FB_BLANK_VSYNC_SUSPEND:
+        case FB_BLANK_NORMAL:
+                retval = ps3av_video_mute(1);   /* mute on */
+                if (!retval)
+                        ps3fb.is_blanked = 1;
+                break;
+
+        default:                /* unblank */
+                retval = ps3av_video_mute(0);   /* mute off */
+                if (!retval)
+                        ps3fb.is_blanked = 0;
+                break;
+        }
+        return retval;
+}
+
+static int ps3fb_get_vblank(struct fb_vblank *vblank)
+{
+        memset(vblank, 0, sizeof(&vblank));
+        vblank->flags = FB_VBLANK_HAVE_VSYNC;
+        return 0;
+}
+
+int ps3fb_wait_for_vsync(u32 crtc)
+{
+        int ret;
+        u64 count;
+
+        count = ps3fb.vblank_count;
+        ret = wait_event_interruptible_timeout(ps3fb.wait_vsync,
+                                               count != ps3fb.vblank_count,
+                                               HZ / 10);
+        if (!ret)
+                return -ETIMEDOUT;
+
+        return 0;
+}
+
+EXPORT_SYMBOL_GPL(ps3fb_wait_for_vsync);
+
+void ps3fb_flip_ctl(int on)
+{
+        if (on) {
+                if (atomic_read(&ps3fb.ext_flip) > 0) {
+                        atomic_dec(&ps3fb.ext_flip);
+                }
+        } else {
+                atomic_inc(&ps3fb.ext_flip);
+        }
+}
+
+EXPORT_SYMBOL_GPL(ps3fb_flip_ctl);
+
+    /*
+     * ioctl
+     */
+
+static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd,
+                       unsigned long arg)
+{
+        void __user *argp = (void __user *)arg;
+        u32 val, old_mode;
+        int retval = -EFAULT;
+
+        switch (cmd) {
+        case FBIOGET_VBLANK:
+                {
+                        struct fb_vblank vblank;
+                        DPRINTK("FBIOGET_VBLANK:\n");
+                        retval = ps3fb_get_vblank(&vblank);
+                        if (retval)
+                                break;
+
+                        if (copy_to_user(argp, &vblank, sizeof(vblank)))
+                                retval = -EFAULT;
+                        break;
+                }
+
+        case FBIO_WAITFORVSYNC:
+                {
+                        u32 crt;
+                        DPRINTK("FBIO_WAITFORVSYNC:\n");
+                        if (get_user(crt, (u32 __user *) arg))
+                                break;
+
+                        retval = ps3fb_wait_for_vsync(crt);
+                        break;
+                }
+
+        case PS3FB_IOCTL_SETMODE:
+                {
+                        const struct fb_videomode *mode;
+                        struct fb_var_screeninfo var;
+
+                        if (copy_from_user(&val, argp, sizeof(val)))
+                                break;
+
+                        DPRINTK("PS3FB_IOCTL_SETMODE:%x\n", val);
+                        retval = -EINVAL;
+                        old_mode = ps3fb_mode;
+                        ps3fb_mode = val;
+                        mode = ps3fb_default_mode();
+                        if (mode) {
+                                var = info->var;
+                                fb_videomode_to_var(&var, mode);
+                                acquire_console_sem();
+                                info->flags |= FBINFO_MISC_USEREVENT;
+                                /* Force, in case only special bits changed */
+                                var.activate |= FB_ACTIVATE_FORCE;
+                                retval = fb_set_var(info, &var);
+                                info->flags &= ~FBINFO_MISC_USEREVENT;
+                                release_console_sem();
+                        }
+                        if (retval)
+                                ps3fb_mode = old_mode;
+                        break;
+                }
+
+        case PS3FB_IOCTL_GETMODE:
+                val = ps3av_get_mode();
+                DPRINTK("PS3FB_IOCTL_GETMODE:%x\n", val);
+                if (!copy_to_user(argp, &val, sizeof(val)))
+                        retval = 0;
+                break;
+
+        case PS3FB_IOCTL_SCREENINFO:
+                {
+                        struct ps3fb_ioctl_res res;
+                        int i = ps3fb.res_index;
+                        DPRINTK("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.num_frames = ps3fb.num_frames;
+                        if (!copy_to_user(argp, &res, sizeof(res)))
+                                retval = 0;
+                        break;
+                }
+
+        case PS3FB_IOCTL_ON:
+                DPRINTK("PS3FB_IOCTL_ON:\n");
+                atomic_inc(&ps3fb.ext_flip);
+                retval = 0;
+                break;
+
+        case PS3FB_IOCTL_OFF:
+                DPRINTK("PS3FB_IOCTL_OFF:\n");
+                if (atomic_read(&ps3fb.ext_flip) > 0)
+                        atomic_dec(&ps3fb.ext_flip);
+                retval = 0;
+                break;
+
+        case PS3FB_IOCTL_FSEL:
+                if (copy_from_user(&val, argp, sizeof(val)))
+                        break;
+
+                DPRINTK("PS3FB_IOCTL_FSEL:%d\n", val);
+                retval = ps3fb_sync(val);
+                break;
+
+        default:
+                retval = -ENOIOCTLCMD;
+                break;
+        }
+        return retval;
+}
+
+static int ps3fbd(void *arg)
+{
+        daemonize("ps3fbd");
+        for (;;) {
+                down(&ps3fb.sem);
+                if (atomic_read(&ps3fb.ext_flip) == 0)
+                        ps3fb_sync(0);  /* single buffer */
+        }
+        return 0;
+}
+
+static irqreturn_t ps3fb_vsync_interrupt(int irq, void *ptr)
+{
+        u64 v1;
+        int status;
+        struct display_head *head = &ps3fb.dinfo->display_head[1];
+
+        status = lv1_gpu_context_intr(ps3fb.context_handle, &v1);
+        if (status) {
+                printk(KERN_ERR "%s: lv1_gpu_context_intr failed: %d\n",
+                       __FUNCTION__, status);
+                return IRQ_NONE;
+        }
+
+        if (v1 & (1 << GPU_INTR_STATUS_VSYNC_1)) {
+                /* VSYNC */
+                ps3fb.vblank_count = head->vblank_count;
+                if (!ps3fb.is_blanked)
+                        up(&ps3fb.sem);
+                wake_up_interruptible(&ps3fb.wait_vsync);
+        }
+
+        return IRQ_HANDLED;
+}
+
+#ifndef MODULE
+static int __init ps3fb_setup(char *options)
+{
+        char *this_opt;
+        int mode = 0;
+
+        if (!options || !*options)
+                return 0;       /* no options */
+
+        while ((this_opt = strsep(&options, ",")) != NULL) {
+                if (!*this_opt)
+                        continue;
+                if (!strncmp(this_opt, "mode:", 5))
+                        mode = simple_strtoul(this_opt + 5, NULL, 0);
+                else
+                        mode_option = this_opt;
+        }
+        return mode;
+}
+#endif  /* MODULE */
+
+    /*
+     *  Initialisation
+     */
+
+static void ps3fb_platform_release(struct device *device)
+{
+        /* This is called when the reference count goes to zero. */
+}
+
+static int ps3fb_vsync_settings(struct gpu_driver_info *dinfo, void *dev)
+{
+        int error;
+
+        DPRINTK("version_driver:%x\n", dinfo->version_driver);
+        DPRINTK("irq outlet:%x\n", dinfo->irq.irq_outlet);
+        DPRINTK("version_gpu:%x memory_size:%x ch:%x core_freq:%d mem_freq:%d\n",
+                dinfo->version_gpu, dinfo->memory_size, dinfo->hardware_channel,
+                dinfo->nvcore_frequency/1000000, dinfo->memory_frequency/1000000);
+
+        if (dinfo->version_driver != GPU_DRIVER_INFO_VERSION) {
+                printk(KERN_ERR "%s: version_driver err:%x\n", __FUNCTION__,
+                       dinfo->version_driver);
+                return -EINVAL;
+        }
+
+        ps3fb.dev = dev;
+        error = ps3_alloc_irq(PS3_BINDING_CPU_ANY, dinfo->irq.irq_outlet,
+                              &ps3fb.irq_no);
+        if (error) {
+                printk(KERN_ERR "%s: ps3_alloc_irq failed %d\n", __FUNCTION__,
+                       error);
+                return error;
+        }
+
+        error = request_irq(ps3fb.irq_no, ps3fb_vsync_interrupt, IRQF_DISABLED,
+                            "ps3fb vsync", ps3fb.dev);
+        if (error) {
+                printk(KERN_ERR "%s: request_irq failed %d\n", __FUNCTION__,
+                       error);
+                ps3_free_irq(ps3fb.irq_no);
+                return error;
+        }
+
+        dinfo->irq.mask = (1 << GPU_INTR_STATUS_VSYNC_1) |
+                          (1 << GPU_INTR_STATUS_FLIP_1);
+        return 0;
+}
+
+static int ps3fb_xdr_settings(u64 xdr_lpar)
+{
+        int status;
+
+        status = lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF,
+                                       xdr_lpar, ps3fb_videomemory.size, 0);
+        if (status) {
+                printk(KERN_ERR "%s: lv1_gpu_context_iomap failed: %d\n",
+                       __FUNCTION__, status);
+                return -ENXIO;
+        }
+        DPRINTK("video:%p xdr_ea:%p ioif:%lx lpar:%lx phys:%lx size:%lx\n",
+                ps3fb_videomemory.address, ps3fb.xdr_ea, GPU_IOIF, xdr_lpar,
+                virt_to_abs(ps3fb.xdr_ea), ps3fb_videomemory.size);
+
+        status = lv1_gpu_context_attribute(ps3fb.context_handle,
+                                           L1GPU_CONTEXT_ATTRIBUTE_FB_SETUP,
+                                           xdr_lpar, ps3fb_videomemory.size,
+                                           GPU_IOIF, 0);
+        if (status) {
+                printk(KERN_ERR "%s: lv1_gpu_context_attribute FB_SETUP failed: %d\n",
+                       __FUNCTION__, status);
+                return -ENXIO;
+        }
+        return 0;
+}
+
+static struct fb_ops ps3fb_ops = {
+        .fb_open        = ps3fb_open,
+        .fb_release     = ps3fb_release,
+        .fb_check_var   = ps3fb_check_var,
+        .fb_set_par     = ps3fb_set_par,
+        .fb_setcolreg   = ps3fb_setcolreg,
+        .fb_fillrect    = cfb_fillrect,
+        .fb_copyarea    = cfb_copyarea,
+        .fb_imageblit   = cfb_imageblit,
+        .fb_mmap        = ps3fb_mmap,
+        .fb_blank       = ps3fb_blank,
+        .fb_ioctl       = ps3fb_ioctl,
+        .fb_compat_ioctl = ps3fb_ioctl
+};
+
+static struct fb_fix_screeninfo ps3fb_fix __initdata = {
+        .id =           "PS3 FB",
+        .type =         FB_TYPE_PACKED_PIXELS,
+        .visual =       FB_VISUAL_TRUECOLOR,
+        .accel =        FB_ACCEL_NONE,
+};
+
+static int __init ps3fb_probe(struct platform_device *dev)
+{
+        struct fb_info *info;
+        int retval = -ENOMEM;
+        u64 ddr_lpar = 0;
+        u64 lpar_dma_control = 0;
+        u64 lpar_driver_info = 0;
+        u64 lpar_reports = 0;
+        u64 lpar_reports_size = 0;
+        u64 xdr_lpar;
+        int status;
+        unsigned long offset;
+
+        /* get gpu context handle */
+        status = lv1_gpu_memory_allocate(DDR_SIZE, 0, 0, 0, 0,
+                                         &ps3fb.memory_handle, &ddr_lpar);
+        if (status) {
+                printk(KERN_ERR "%s: lv1_gpu_memory_allocate failed: %d\n",
+                       __FUNCTION__, status);
+                goto err;
+        }
+        DPRINTK("ddr:lpar:0x%lx\n", ddr_lpar);
+
+        status = lv1_gpu_context_allocate(ps3fb.memory_handle, 0,
+                                          &ps3fb.context_handle,
+                                          &lpar_dma_control, &lpar_driver_info,
+                                          &lpar_reports, &lpar_reports_size);
+        if (status) {
+                printk(KERN_ERR "%s: lv1_gpu_context_attribute failed: %d\n",
+                       __FUNCTION__, status);
+                goto err_gpu_memory_free;
+        }
+
+        /* vsync interrupt */
+        ps3fb.dinfo = ioremap(lpar_driver_info, 128 * 1024);
+        if (!ps3fb.dinfo) {
+                printk(KERN_ERR "%s: ioremap failed\n", __FUNCTION__);
+                goto err_gpu_context_free;
+        }
+
+        retval = ps3fb_vsync_settings(ps3fb.dinfo, dev);
+        if (retval)
+                goto err_iounmap_dinfo;
+
+        /* xdr frame buffer */
+        ps3fb.xdr_ea = ps3fb_videomemory.address;
+        xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb.xdr_ea));
+        retval = ps3fb_xdr_settings(xdr_lpar);
+        if (retval)
+                goto err_free_irq;
+
+        /*
+         * ps3fb must clear memory to prevent kernel info
+         * leakage into userspace
+         */
+        memset(ps3fb.xdr_ea, 0, ps3fb_videomemory.size);
+        info = framebuffer_alloc(sizeof(u32) * 16, &dev->dev);
+        if (!info)
+                goto err_free_irq;
+
+        offset = FB_OFF(ps3fb.res_index) + VP_OFF(ps3fb.res_index);
+        info->screen_base = (char __iomem *)ps3fb.xdr_ea + offset;
+        info->fbops = &ps3fb_ops;
+
+        info->fix = ps3fb_fix;
+        info->fix.smem_start = virt_to_abs(ps3fb.xdr_ea);
+        info->fix.smem_len = ps3fb_videomemory.size - offset;
+        info->pseudo_palette = info->par;
+        info->par = NULL;
+        info->flags = FBINFO_FLAG_DEFAULT;
+
+        retval = fb_alloc_cmap(&info->cmap, 256, 0);
+        if (retval < 0)
+                goto err_framebuffer_release;
+
+        if (!fb_find_mode(&info->var, info, mode_option, ps3fb_modedb,
+                          ARRAY_SIZE(ps3fb_modedb), ps3fb_default_mode(), 32)) {
+                retval = -EINVAL;
+                goto err_fb_dealloc;
+        }
+
+        fb_videomode_to_modelist(ps3fb_modedb, ARRAY_SIZE(ps3fb_modedb),
+                                 &info->modelist);
+
+        retval = register_framebuffer(info);
+        if (retval < 0)
+                goto err_fb_dealloc;
+
+        platform_set_drvdata(dev, info);
+
+        printk(KERN_INFO
+               "fb%d: PS3 frame buffer device, using %ld KiB of video memory\n",
+               info->node, ps3fb_videomemory.size >> 10);
+
+        kernel_thread(ps3fbd, info, CLONE_KERNEL);
+        return 0;
+
+err_fb_dealloc:
+        fb_dealloc_cmap(&info->cmap);
+err_framebuffer_release:
+        framebuffer_release(info);
+err_free_irq:
+        free_irq(ps3fb.irq_no, ps3fb.dev);
+        ps3_free_irq(ps3fb.irq_no);
+err_iounmap_dinfo:
+        iounmap((u8 __iomem *)ps3fb.dinfo);
+err_gpu_context_free:
+        lv1_gpu_context_free(ps3fb.context_handle);
+err_gpu_memory_free:
+        lv1_gpu_memory_free(ps3fb.memory_handle);
+err:
+        return retval;
+}
+
+static void ps3fb_shutdown(struct platform_device *dev)
+{
+        ps3fb_flip_ctl(0);      /* flip off */
+        ps3fb.dinfo->irq.mask = 0;
+        free_irq(ps3fb.irq_no, ps3fb.dev);
+        ps3_free_irq(ps3fb.irq_no);
+        iounmap((u8 __iomem *)ps3fb.dinfo);
+}
+
+void ps3fb_cleanup(void)
+{
+        int status;
+
+        if (ps3fb.irq_no) {
+                free_irq(ps3fb.irq_no, ps3fb.dev);
+                ps3_free_irq(ps3fb.irq_no);
+        }
+        iounmap((u8 __iomem *)ps3fb.dinfo);
+
+        status = lv1_gpu_context_free(ps3fb.context_handle);
+        if (status)
+                DPRINTK("lv1_gpu_context_free failed: %d\n", status);
+
+        status = lv1_gpu_memory_free(ps3fb.memory_handle);
+        if (status)
+                DPRINTK("lv1_gpu_memory_free failed: %d\n", status);
+
+        ps3av_dev_close();
+}
+
+EXPORT_SYMBOL_GPL(ps3fb_cleanup);
+
+static int ps3fb_remove(struct platform_device *dev)
+{
+        struct fb_info *info = platform_get_drvdata(dev);
+
+        if (info) {
+                unregister_framebuffer(info);
+                fb_dealloc_cmap(&info->cmap);
+                framebuffer_release(info);
+        }
+        ps3fb_cleanup();
+        return 0;
+}
+
+static struct platform_driver ps3fb_driver = {
+        .probe  = ps3fb_probe,
+        .remove = ps3fb_remove,
+        .shutdown = ps3fb_shutdown,
+        .driver = { .name = "ps3fb" }
+};
+
+static struct platform_device ps3fb_device = {
+        .name   = "ps3fb",
+        .id     = 0,
+        .dev    = { .release = ps3fb_platform_release }
+};
+
+int ps3fb_set_sync(void)
+{
+        int status;
+
+#ifdef HEAD_A
+        status = lv1_gpu_context_attribute(0x0,
+                                           L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC,
+                                           0, L1GPU_DISPLAY_SYNC_VSYNC, 0, 0);
+        if (status) {
+                printk(KERN_ERR "%s: lv1_gpu_context_attribute DISPLAY_SYNC failed: %d\n",
+                       __FUNCTION__, status);
+                return -1;
+        }
+#endif
+#ifdef HEAD_B
+        status = lv1_gpu_context_attribute(0x0,
+                                           L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC,
+                                           1, L1GPU_DISPLAY_SYNC_VSYNC, 0, 0);
+
+        if (status) {
+                printk(KERN_ERR "%s: lv1_gpu_context_attribute DISPLAY_MODE failed: %d\n",
+                       __FUNCTION__, status);
+                return -1;
+        }
+#endif
+        return 0;
+}
+
+EXPORT_SYMBOL_GPL(ps3fb_set_sync);
+
+static int __init ps3fb_init(void)
+{
+        int error;
+#ifndef MODULE
+        int mode;
+        char *option = NULL;
+
+        if (fb_get_options("ps3fb", &option))
+                goto err;
+#endif
+
+        if (!ps3fb_videomemory.address)
+                goto err;
+
+        error = ps3av_dev_open();
+        if (error) {
+                printk(KERN_ERR "%s: ps3av_dev_open failed\n", __FUNCTION__);
+                goto err;
+        }
+
+        ps3fb_mode = ps3av_get_mode();
+        DPRINTK("ps3av_mode:%d\n", ps3fb_mode);
+#ifndef MODULE
+        mode = ps3fb_setup(option);     /* check boot option */
+        if (mode)
+                ps3fb_mode = mode;
+#endif
+        if (ps3fb_mode > 0) {
+                u32 xres, yres;
+                ps3av_video_mode2res(ps3fb_mode, &xres, &yres);
+                ps3fb.res_index = ps3fb_get_res_table(xres, yres);
+                DPRINTK("res_index:%d\n", ps3fb.res_index);
+        } else
+                ps3fb.res_index = GPU_RES_INDEX;
+
+        atomic_set(&ps3fb.f_count, -1); /* fbcon opens ps3fb */
+        atomic_set(&ps3fb.ext_flip, 0); /* for flip with vsync */
+        init_MUTEX(&ps3fb.sem);
+        init_waitqueue_head(&ps3fb.wait_vsync);
+        ps3fb.num_frames = 1;
+
+        error = platform_driver_register(&ps3fb_driver);
+        if (!error) {
+                error = platform_device_register(&ps3fb_device);
+                if (error)
+                        platform_driver_unregister(&ps3fb_driver);
+        }
+
+        ps3fb_set_sync();
+
+        return error;
+
+err:
+        return -ENXIO;
+}
+
+module_init(ps3fb_init);
+
+#ifdef MODULE
+static void __exit ps3fb_exit(void)
+{
+        platform_device_unregister(&ps3fb_device);
+        platform_driver_unregister(&ps3fb_driver);
+}
+
+module_exit(ps3fb_exit);
+
+MODULE_LICENSE("GPL");
+#endif                          /* MODULE */