ps3fb.c 30.0 KB
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/*
 *  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/console.h>
#include <linux/ioctl.h>
#include <linux/notifier.h>
#include <linux/reboot.h>
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#include <linux/kthread.h>
#include <linux/freezer.h>
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#include <linux/uaccess.h>
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#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>

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#define DEVICE_NAME		"ps3fb"

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#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;

	u64 context_handle, memory_handle;
	void *xdr_ea;
	struct gpu_driver_info *dinfo;
	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;
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	int is_kicked;
	struct task_struct *task;
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};
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 */
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#define GPU_RES_INDEX	0		/* 720 x 480 */
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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)

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static int ps3fb_mode;
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module_param(ps3fb_mode, int, 0);
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static char *mode_option __devinitdata;
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static int ps3fb_get_res_table(u32 xres, u32 yres, int mode)
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{
	int full_mode;
	unsigned int i;
	u32 x, y, f;

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	full_mode = (mode & PS3FB_FULL_MODE_BIT) ? PS3FB_RES_FULL : 0;
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	for (i = 0;; i++) {
		x = ps3fb_res[i].xres;
		y = ps3fb_res[i].yres;
		f = ps3fb_res[i].type;

		if (!x) {
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			pr_debug("ERROR: ps3fb_get_res_table()\n");
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			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;

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

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

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static int ps3fb_sync(struct fb_info *info, u32 frame)
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{
	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) {
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		dev_dbg(info->device, "%s: invalid frame number (%u)\n",
			__func__, frame);
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		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)
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		dev_err(info->device,
			"%s: lv1_gpu_context_attribute FB_BLIT failed: %d\n",
			__func__, status);
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#ifdef HEAD_A
	status = lv1_gpu_context_attribute(ps3fb.context_handle,
					   L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
					   0, offset, 0, 0);
	if (status)
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		dev_err(info->device,
			"%s: lv1_gpu_context_attribute FLIP failed: %d\n",
			__func__, status);
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#endif
#ifdef HEAD_B
	status = lv1_gpu_context_attribute(ps3fb.context_handle,
					   L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
					   1, offset, 0, 0);
	if (status)
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		dev_err(info->device,
			"%s: lv1_gpu_context_attribute FLIP failed: %d\n",
			__func__, status);
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#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);
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			ps3fb_sync(info, 0);	/* single buffer */
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		}
	}
	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;

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	dev_dbg(info->device, "var->xres:%u info->var.xres:%u\n", var->xres,
		info->var.xres);
	dev_dbg(info->device, "var->yres:%u info->var.yres:%u\n", var->yres,
		info->var.yres);
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	/* 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) {
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		dev_dbg(info->device,
			"Virtual screen and panning are not supported\n");
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		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) {
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		dev_dbg(info->device, "We support ARGB8888 only\n");
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		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) {
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		dev_dbg(info->device, "Rotation is not supported\n");
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		return -EINVAL;
	}

	/* Memory limit */
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	i = ps3fb_get_res_table(var->xres, var->yres, mode);
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	if (ps3fb_res[i].xres*ps3fb_res[i].yres*BPP > ps3fb_videomemory.size) {
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		dev_dbg(info->device, "Not enough memory\n");
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		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;

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	dev_dbg(info->device, "xres:%d xv:%d yres:%d yv:%d clock:%d\n",
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		info->var.xres, info->var.xres_virtual,
		info->var.yres, info->var.yres_virtual, info->var.pixclock);

	mode = ps3fb_find_mode(&info->var, &info->fix.line_length);
	if (!mode)
		return -EINVAL;

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	i = ps3fb_get_res_table(info->var.xres, info->var.yres, mode);
	ps3fb.res_index = i;

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	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;

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	if (ps3av_set_video_mode(ps3fb_mode))
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		return -EINVAL;

	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;

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	i = ps3fb_get_res_table(info->var.xres, info->var.yres, ps3fb_mode);
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	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;

623 624
	dev_dbg(info->device, "ps3fb: mmap framebuffer P(%lx)->V(%lx)\n",
		offset, vma->vm_start);
625 626 627 628 629 630 631 632 633 634 635
	return 0;
}

    /*
     * Blank the display
     */

static int ps3fb_blank(int blank, struct fb_info *info)
{
	int retval;

636
	dev_dbg(info->device, "%s: blank:%d\n", __func__, blank);
637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679
	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);

680
void ps3fb_flip_ctl(int on, void *data)
681
{
682
	struct ps3fb_priv *priv = data;
G
Geert Uytterhoeven 已提交
683
	if (on)
684
		atomic_dec_if_positive(&priv->ext_flip);
G
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685
	else
686
		atomic_inc(&priv->ext_flip);
687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704
}


    /*
     * 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;
705
			dev_dbg(info->device, "FBIOGET_VBLANK:\n");
706 707 708 709 710 711 712 713 714 715 716 717
			retval = ps3fb_get_vblank(&vblank);
			if (retval)
				break;

			if (copy_to_user(argp, &vblank, sizeof(vblank)))
				retval = -EFAULT;
			break;
		}

	case FBIO_WAITFORVSYNC:
		{
			u32 crt;
718
			dev_dbg(info->device, "FBIO_WAITFORVSYNC:\n");
719 720 721 722 723 724 725 726 727 728 729 730 731 732 733
			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;

734
			if (!(val & PS3AV_MODE_MASK)) {
735
				u32 id = ps3av_get_auto_mode();
736 737 738
				if (id > 0)
					val = (val & ~PS3AV_MODE_MASK) | id;
			}
739
			dev_dbg(info->device, "PS3FB_IOCTL_SETMODE:%x\n", val);
740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761
			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();
762
		dev_dbg(info->device, "PS3FB_IOCTL_GETMODE:%x\n", val);
763 764 765 766 767 768 769 770
		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;
771
			dev_dbg(info->device, "PS3FB_IOCTL_SCREENINFO:\n");
772 773 774 775 776 777 778 779 780 781 782
			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:
783
		dev_dbg(info->device, "PS3FB_IOCTL_ON:\n");
784 785 786 787 788
		atomic_inc(&ps3fb.ext_flip);
		retval = 0;
		break;

	case PS3FB_IOCTL_OFF:
789
		dev_dbg(info->device, "PS3FB_IOCTL_OFF:\n");
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Geert Uytterhoeven 已提交
790
		atomic_dec_if_positive(&ps3fb.ext_flip);
791 792 793 794 795 796 797
		retval = 0;
		break;

	case PS3FB_IOCTL_FSEL:
		if (copy_from_user(&val, argp, sizeof(val)))
			break;

798 799
		dev_dbg(info->device, "PS3FB_IOCTL_FSEL:%d\n", val);
		retval = ps3fb_sync(info, val);
800 801 802 803 804 805 806 807 808 809 810
		break;

	default:
		retval = -ENOIOCTLCMD;
		break;
	}
	return retval;
}

static int ps3fbd(void *arg)
{
811 812
	struct fb_info *info = arg;

813
	set_freezable();
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Geert Uytterhoeven 已提交
814 815 816 817 818
	while (!kthread_should_stop()) {
		try_to_freeze();
		set_current_state(TASK_INTERRUPTIBLE);
		if (ps3fb.is_kicked) {
			ps3fb.is_kicked = 0;
819
			ps3fb_sync(info, 0);	/* single buffer */
G
Geert Uytterhoeven 已提交
820 821
		}
		schedule();
822 823 824 825 826 827
	}
	return 0;
}

static irqreturn_t ps3fb_vsync_interrupt(int irq, void *ptr)
{
828
	struct device *dev = ptr;
829 830 831 832 833 834
	u64 v1;
	int status;
	struct display_head *head = &ps3fb.dinfo->display_head[1];

	status = lv1_gpu_context_intr(ps3fb.context_handle, &v1);
	if (status) {
835 836
		dev_err(dev, "%s: lv1_gpu_context_intr failed: %d\n", __func__,
			status);
837 838 839 840 841 842
		return IRQ_NONE;
	}

	if (v1 & (1 << GPU_INTR_STATUS_VSYNC_1)) {
		/* VSYNC */
		ps3fb.vblank_count = head->vblank_count;
G
Geert Uytterhoeven 已提交
843 844 845 846 847
		if (ps3fb.task && !ps3fb.is_blanked &&
		    !atomic_read(&ps3fb.ext_flip)) {
			ps3fb.is_kicked = 1;
			wake_up_process(ps3fb.task);
		}
848 849 850 851 852 853 854
		wake_up_interruptible(&ps3fb.wait_vsync);
	}

	return IRQ_HANDLED;
}


855
static int ps3fb_vsync_settings(struct gpu_driver_info *dinfo,
856
				struct device *dev)
857 858 859
{
	int error;

860 861 862 863 864
	dev_dbg(dev, "version_driver:%x\n", dinfo->version_driver);
	dev_dbg(dev, "irq outlet:%x\n", dinfo->irq.irq_outlet);
	dev_dbg(dev,
		"version_gpu: %x memory_size: %x ch: %x core_freq: %d "
		"mem_freq:%d\n",
865 866 867 868
		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) {
869 870
		dev_err(dev, "%s: version_driver err:%x\n", __func__,
			dinfo->version_driver);
871 872 873
		return -EINVAL;
	}

874 875
	error = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY, dinfo->irq.irq_outlet,
				   &ps3fb.irq_no);
876
	if (error) {
877
		dev_err(dev, "%s: ps3_alloc_irq failed %d\n", __func__, error);
878 879 880 881
		return error;
	}

	error = request_irq(ps3fb.irq_no, ps3fb_vsync_interrupt, IRQF_DISABLED,
882
			    DEVICE_NAME, dev);
883
	if (error) {
884
		dev_err(dev, "%s: request_irq failed %d\n", __func__, error);
885
		ps3_irq_plug_destroy(ps3fb.irq_no);
886 887 888 889 890 891 892 893
		return error;
	}

	dinfo->irq.mask = (1 << GPU_INTR_STATUS_VSYNC_1) |
			  (1 << GPU_INTR_STATUS_FLIP_1);
	return 0;
}

894
static int ps3fb_xdr_settings(u64 xdr_lpar, struct device *dev)
895 896 897 898 899 900
{
	int status;

	status = lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF,
				       xdr_lpar, ps3fb_videomemory.size, 0);
	if (status) {
901 902
		dev_err(dev, "%s: lv1_gpu_context_iomap failed: %d\n",
			__func__, status);
903 904
		return -ENXIO;
	}
905 906
	dev_dbg(dev,
		"video:%p xdr_ea:%p ioif:%lx lpar:%lx phys:%lx size:%lx\n",
907 908 909 910 911 912 913 914
		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) {
915 916 917
		dev_err(dev,
			"%s: lv1_gpu_context_attribute FB_SETUP failed: %d\n",
			__func__, status);
918 919 920 921 922 923 924 925
		return -ENXIO;
	}
	return 0;
}

static struct fb_ops ps3fb_ops = {
	.fb_open	= ps3fb_open,
	.fb_release	= ps3fb_release,
926 927
	.fb_read        = fb_sys_read,
	.fb_write       = fb_sys_write,
928 929 930
	.fb_check_var	= ps3fb_check_var,
	.fb_set_par	= ps3fb_set_par,
	.fb_setcolreg	= ps3fb_setcolreg,
931 932 933
	.fb_fillrect	= sys_fillrect,
	.fb_copyarea	= sys_copyarea,
	.fb_imageblit	= sys_imageblit,
934 935 936 937 938 939 940
	.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 = {
941
	.id =		DEVICE_NAME,
942 943 944 945 946
	.type =		FB_TYPE_PACKED_PIXELS,
	.visual =	FB_VISUAL_TRUECOLOR,
	.accel =	FB_ACCEL_NONE,
};

947
static int ps3fb_set_sync(struct device *dev)
948 949 950 951 952 953 954 955
{
	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) {
956 957 958 959
		dev_err(dev,
			"%s: lv1_gpu_context_attribute DISPLAY_SYNC failed: "
			"%d\n",
			__func__, status);
960 961 962 963 964 965 966 967 968
		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) {
969 970 971 972
		dev_err(dev,
			"%s: lv1_gpu_context_attribute DISPLAY_SYNC failed: "
			"%d\n",
			__func__, status);
973 974 975 976 977 978 979
		return -1;
	}
#endif
	return 0;
}

static int __devinit ps3fb_probe(struct ps3_system_bus_device *dev)
980 981 982
{
	struct fb_info *info;
	int retval = -ENOMEM;
983
	u32 xres, yres;
984 985 986 987 988 989 990 991
	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;
G
Geert Uytterhoeven 已提交
992
	struct task_struct *task;
993

994 995
	status = ps3_open_hv_device(dev);
	if (status) {
996 997
		dev_err(&dev->core, "%s: ps3_open_hv_device failed\n",
			__func__);
998 999 1000 1001 1002
		goto err;
	}

	if (!ps3fb_mode)
		ps3fb_mode = ps3av_get_mode();
1003
	dev_dbg(&dev->core, "ps3av_mode:%d\n", ps3fb_mode);
1004 1005 1006

	if (ps3fb_mode > 0 &&
	    !ps3av_video_mode2res(ps3fb_mode, &xres, &yres)) {
1007
		ps3fb.res_index = ps3fb_get_res_table(xres, yres, ps3fb_mode);
1008
		dev_dbg(&dev->core, "res_index:%d\n", ps3fb.res_index);
1009 1010 1011 1012 1013 1014 1015 1016
	} 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_waitqueue_head(&ps3fb.wait_vsync);
	ps3fb.num_frames = 1;

1017
	ps3fb_set_sync(&dev->core);
1018

1019 1020 1021 1022
	/* get gpu context handle */
	status = lv1_gpu_memory_allocate(DDR_SIZE, 0, 0, 0, 0,
					 &ps3fb.memory_handle, &ddr_lpar);
	if (status) {
1023 1024
		dev_err(&dev->core, "%s: lv1_gpu_memory_allocate failed: %d\n",
			__func__, status);
1025 1026
		goto err;
	}
1027
	dev_dbg(&dev->core, "ddr:lpar:0x%lx\n", ddr_lpar);
1028 1029 1030 1031 1032 1033

	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) {
1034 1035 1036
		dev_err(&dev->core,
			"%s: lv1_gpu_context_attribute failed: %d\n", __func__,
			status);
1037 1038 1039 1040 1041 1042
		goto err_gpu_memory_free;
	}

	/* vsync interrupt */
	ps3fb.dinfo = ioremap(lpar_driver_info, 128 * 1024);
	if (!ps3fb.dinfo) {
1043
		dev_err(&dev->core, "%s: ioremap failed\n", __func__);
1044 1045 1046
		goto err_gpu_context_free;
	}

1047
	retval = ps3fb_vsync_settings(ps3fb.dinfo, &dev->core);
1048 1049 1050 1051 1052 1053
	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));
1054
	retval = ps3fb_xdr_settings(xdr_lpar, &dev->core);
1055 1056 1057 1058 1059 1060 1061 1062
	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);
1063
	info = framebuffer_alloc(sizeof(u32) * 16, &dev->core);
1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075
	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;
1076
	info->flags = FBINFO_DEFAULT | FBINFO_READS_FAST;
1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094

	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;

1095
	dev->core.driver_data = info;
1096

1097 1098 1099
	dev_info(info->device, "%s %s, using %lu KiB of video memory\n",
		 dev_driver_string(info->dev), info->dev->bus_id,
		 ps3fb_videomemory.size >> 10);
1100

1101
	task = kthread_run(ps3fbd, info, DEVICE_NAME);
G
Geert Uytterhoeven 已提交
1102 1103 1104 1105 1106 1107
	if (IS_ERR(task)) {
		retval = PTR_ERR(task);
		goto err_unregister_framebuffer;
	}

	ps3fb.task = task;
1108
	ps3av_register_flip_ctl(ps3fb_flip_ctl, &ps3fb);
G
Geert Uytterhoeven 已提交
1109

1110 1111
	return 0;

G
Geert Uytterhoeven 已提交
1112 1113
err_unregister_framebuffer:
	unregister_framebuffer(info);
1114 1115 1116 1117 1118
err_fb_dealloc:
	fb_dealloc_cmap(&info->cmap);
err_framebuffer_release:
	framebuffer_release(info);
err_free_irq:
1119
	free_irq(ps3fb.irq_no, dev);
1120
	ps3_irq_plug_destroy(ps3fb.irq_no);
1121 1122 1123 1124 1125 1126 1127 1128 1129 1130
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;
}

1131
static int ps3fb_shutdown(struct ps3_system_bus_device *dev)
1132
{
1133 1134 1135
	int status;
	struct fb_info *info = dev->core.driver_data;

1136
	dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);
1137 1138

	ps3fb_flip_ctl(0, &ps3fb);	/* flip off */
1139 1140
	ps3fb.dinfo->irq.mask = 0;

1141 1142 1143 1144 1145
	if (info) {
		unregister_framebuffer(info);
		fb_dealloc_cmap(&info->cmap);
		framebuffer_release(info);
	}
1146

1147
	ps3av_register_flip_ctl(NULL, NULL);
G
Geert Uytterhoeven 已提交
1148 1149 1150 1151 1152
	if (ps3fb.task) {
		struct task_struct *task = ps3fb.task;
		ps3fb.task = NULL;
		kthread_stop(task);
	}
1153
	if (ps3fb.irq_no) {
1154
		free_irq(ps3fb.irq_no, dev);
1155
		ps3_irq_plug_destroy(ps3fb.irq_no);
1156 1157 1158 1159 1160
	}
	iounmap((u8 __iomem *)ps3fb.dinfo);

	status = lv1_gpu_context_free(ps3fb.context_handle);
	if (status)
1161 1162
		dev_dbg(&dev->core, "lv1_gpu_context_free failed: %d\n",
			status);
1163 1164 1165

	status = lv1_gpu_memory_free(ps3fb.memory_handle);
	if (status)
1166 1167
		dev_dbg(&dev->core, "lv1_gpu_memory_free failed: %d\n",
			status);
1168

1169
	ps3_close_hv_device(dev);
1170
	dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);
1171 1172 1173 1174

	return 0;
}

1175 1176 1177 1178 1179 1180 1181
static struct ps3_system_bus_driver ps3fb_driver = {
	.match_id	= PS3_MATCH_ID_GRAPHICS,
	.core.name	= DEVICE_NAME,
	.core.owner	= THIS_MODULE,
	.probe		= ps3fb_probe,
	.remove		= ps3fb_shutdown,
	.shutdown	= ps3fb_shutdown,
1182 1183
};

1184
static int __init ps3fb_setup(void)
1185
{
1186
	char *options;
1187

1188
#ifdef MODULE
1189 1190 1191
	return 0;
#endif

1192 1193
	if (fb_get_options(DEVICE_NAME, &options))
		return -ENXIO;
1194

1195 1196
	if (!options || !*options)
		return 0;
1197

1198 1199
	while (1) {
		char *this_opt = strsep(&options, ",");
1200

1201 1202 1203 1204 1205 1206 1207 1208
		if (!this_opt)
			break;
		if (!*this_opt)
			continue;
		if (!strncmp(this_opt, "mode:", 5))
			ps3fb_mode = simple_strtoul(this_opt + 5, NULL, 0);
		else
			mode_option = this_opt;
1209
	}
1210 1211
	return 0;
}
1212

1213 1214 1215 1216
static int __init ps3fb_init(void)
{
	if (!ps3fb_videomemory.address ||  ps3fb_setup())
		return -ENXIO;
1217

1218
	return ps3_system_bus_driver_register(&ps3fb_driver);
1219 1220 1221 1222
}

static void __exit ps3fb_exit(void)
{
1223
	pr_debug(" -> %s:%d\n", __func__, __LINE__);
1224
	ps3_system_bus_driver_unregister(&ps3fb_driver);
1225
	pr_debug(" <- %s:%d\n", __func__, __LINE__);
1226 1227
}

1228
module_init(ps3fb_init);
1229 1230 1231
module_exit(ps3fb_exit);

MODULE_LICENSE("GPL");
1232 1233 1234
MODULE_DESCRIPTION("PS3 GPU Frame Buffer Driver");
MODULE_AUTHOR("Sony Computer Entertainment Inc.");
MODULE_ALIAS(PS3_MODULE_ALIAS_GRAPHICS);