diff options
Diffstat (limited to 'kernel/drivers/video/fbdev/ps3fb.c')
| -rw-r--r-- | kernel/drivers/video/fbdev/ps3fb.c | 1307 |
1 files changed, 1307 insertions, 0 deletions
diff --git a/kernel/drivers/video/fbdev/ps3fb.c b/kernel/drivers/video/fbdev/ps3fb.c new file mode 100644 index 000000000..b269abd93 --- /dev/null +++ b/kernel/drivers/video/fbdev/ps3fb.c @@ -0,0 +1,1307 @@ +/* + * 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/interrupt.h> +#include <linux/console.h> +#include <linux/ioctl.h> +#include <linux/kthread.h> +#include <linux/freezer.h> +#include <linux/uaccess.h> +#include <linux/fb.h> +#include <linux/init.h> + +#include <asm/cell-regs.h> +#include <asm/lv1call.h> +#include <asm/ps3av.h> +#include <asm/ps3fb.h> +#include <asm/ps3.h> +#include <asm/ps3gpu.h> + + +#define DEVICE_NAME "ps3fb" + +#define GPU_CMD_BUF_SIZE (2 * 1024 * 1024) +#define GPU_FB_START (64 * 1024) +#define GPU_IOIF (0x0d000000UL) +#define GPU_ALIGN_UP(x) _ALIGN_UP((x), 64) +#define GPU_MAX_LINE_LENGTH (65536 - 64) + +#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; + struct gpu_driver_info *dinfo; + + u64 vblank_count; /* frame count */ + wait_queue_head_t wait_vsync; + + atomic_t ext_flip; /* on/off flip with vsync */ + atomic_t f_count; /* fb_open count */ + int is_blanked; + int is_kicked; + struct task_struct *task; +}; +static struct ps3fb_priv ps3fb; + +struct ps3fb_par { + u32 pseudo_palette[16]; + int mode_id, new_mode_id; + unsigned int num_frames; /* num of frame buffers */ + unsigned int width; + unsigned int height; + unsigned int ddr_line_length; + unsigned int ddr_frame_size; + unsigned int xdr_frame_size; + unsigned int full_offset; /* start of fullscreen DDR fb */ + unsigned int fb_offset; /* start of actual DDR fb */ + unsigned int pan_offset; +}; + + +#define FIRST_NATIVE_MODE_INDEX 10 + +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 + }, { + /* 1080i */ + "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 + }, + + [FIRST_NATIVE_MODE_INDEX] = + /* 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 */ + "1080if", 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 + }, + + /* 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 + } +}; + + +#define HEAD_A +#define HEAD_B + +#define BPP 4 /* number of bytes per pixel */ + + +static int ps3fb_mode; +module_param(ps3fb_mode, int, 0); + +static char *mode_option; + +static int ps3fb_cmp_mode(const struct fb_videomode *vmode, + const struct fb_var_screeninfo *var) +{ + long xres, yres, left_margin, right_margin, upper_margin, lower_margin; + long dx, dy; + + /* maximum values */ + if (var->xres > vmode->xres || var->yres > vmode->yres || + var->pixclock > vmode->pixclock || + var->hsync_len > vmode->hsync_len || + var->vsync_len > vmode->vsync_len) + return -1; + + /* progressive/interlaced must match */ + if ((var->vmode & FB_VMODE_MASK) != vmode->vmode) + return -1; + + /* minimum resolution */ + xres = max(var->xres, 1U); + yres = max(var->yres, 1U); + + /* minimum margins */ + left_margin = max(var->left_margin, vmode->left_margin); + right_margin = max(var->right_margin, vmode->right_margin); + upper_margin = max(var->upper_margin, vmode->upper_margin); + lower_margin = max(var->lower_margin, vmode->lower_margin); + + /* resolution + margins may not exceed native parameters */ + dx = ((long)vmode->left_margin + (long)vmode->xres + + (long)vmode->right_margin) - + (left_margin + xres + right_margin); + if (dx < 0) + return -1; + + dy = ((long)vmode->upper_margin + (long)vmode->yres + + (long)vmode->lower_margin) - + (upper_margin + yres + lower_margin); + if (dy < 0) + return -1; + + /* exact match */ + if (!dx && !dy) + return 0; + + /* resolution difference */ + return (vmode->xres - xres) * (vmode->yres - yres); +} + +static const struct fb_videomode *ps3fb_native_vmode(enum ps3av_mode_num id) +{ + return &ps3fb_modedb[FIRST_NATIVE_MODE_INDEX + id - 1]; +} + +static const struct fb_videomode *ps3fb_vmode(int id) +{ + u32 mode = id & PS3AV_MODE_MASK; + + if (mode < PS3AV_MODE_480I || mode > PS3AV_MODE_WUXGA) + return NULL; + + if (mode <= PS3AV_MODE_1080P50 && !(id & PS3AV_MODE_FULL)) { + /* Non-fullscreen broadcast mode */ + return &ps3fb_modedb[mode - 1]; + } + + return ps3fb_native_vmode(mode); +} + +static unsigned int ps3fb_find_mode(struct fb_var_screeninfo *var, + u32 *ddr_line_length, u32 *xdr_line_length) +{ + unsigned int id, best_id; + int diff, best_diff; + const struct fb_videomode *vmode; + long gap; + + best_id = 0; + best_diff = INT_MAX; + pr_debug("%s: wanted %u [%u] %u x %u [%u] %u\n", __func__, + var->left_margin, var->xres, var->right_margin, + var->upper_margin, var->yres, var->lower_margin); + for (id = PS3AV_MODE_480I; id <= PS3AV_MODE_WUXGA; id++) { + vmode = ps3fb_native_vmode(id); + diff = ps3fb_cmp_mode(vmode, var); + pr_debug("%s: mode %u: %u [%u] %u x %u [%u] %u: diff = %d\n", + __func__, id, vmode->left_margin, vmode->xres, + vmode->right_margin, vmode->upper_margin, + vmode->yres, vmode->lower_margin, diff); + if (diff < 0) + continue; + if (diff < best_diff) { + best_id = id; + if (!diff) + break; + best_diff = diff; + } + } + + if (!best_id) { + pr_debug("%s: no suitable mode found\n", __func__); + return 0; + } + + id = best_id; + vmode = ps3fb_native_vmode(id); + + *ddr_line_length = vmode->xres * BPP; + + /* minimum resolution */ + if (!var->xres) + var->xres = 1; + if (!var->yres) + var->yres = 1; + + /* minimum virtual resolution */ + if (var->xres_virtual < var->xres) + var->xres_virtual = var->xres; + if (var->yres_virtual < var->yres) + var->yres_virtual = var->yres; + + /* minimum margins */ + if (var->left_margin < vmode->left_margin) + var->left_margin = vmode->left_margin; + if (var->right_margin < vmode->right_margin) + var->right_margin = vmode->right_margin; + if (var->upper_margin < vmode->upper_margin) + var->upper_margin = vmode->upper_margin; + if (var->lower_margin < vmode->lower_margin) + var->lower_margin = vmode->lower_margin; + + /* extra margins */ + gap = ((long)vmode->left_margin + (long)vmode->xres + + (long)vmode->right_margin) - + ((long)var->left_margin + (long)var->xres + + (long)var->right_margin); + if (gap > 0) { + var->left_margin += gap/2; + var->right_margin += (gap+1)/2; + pr_debug("%s: rounded up H to %u [%u] %u\n", __func__, + var->left_margin, var->xres, var->right_margin); + } + + gap = ((long)vmode->upper_margin + (long)vmode->yres + + (long)vmode->lower_margin) - + ((long)var->upper_margin + (long)var->yres + + (long)var->lower_margin); + if (gap > 0) { + var->upper_margin += gap/2; + var->lower_margin += (gap+1)/2; + pr_debug("%s: rounded up V to %u [%u] %u\n", __func__, + var->upper_margin, var->yres, var->lower_margin); + } + + /* fixed fields */ + var->pixclock = vmode->pixclock; + var->hsync_len = vmode->hsync_len; + var->vsync_len = vmode->vsync_len; + var->sync = vmode->sync; + + if (ps3_compare_firmware_version(1, 9, 0) >= 0) { + *xdr_line_length = GPU_ALIGN_UP(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; + + if (vmode->sync & FB_SYNC_BROADCAST) { + /* Full broadcast modes have the full mode bit set */ + if (vmode->xres == var->xres && vmode->yres == var->yres) + id |= PS3AV_MODE_FULL; + } + + pr_debug("%s: mode %u\n", __func__, id); + return id; +} + +static void ps3fb_sync_image(struct device *dev, u64 frame_offset, + u64 dst_offset, u64 src_offset, u32 width, + 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; + + src_offset += GPU_FB_START; + + mutex_lock(&ps3_gpu_mutex); + status = lv1_gpu_fb_blit(ps3fb.context_handle, dst_offset, + GPU_IOIF + src_offset, + L1GPU_FB_BLIT_WAIT_FOR_COMPLETION | + (width << 16) | height, + line_length); + mutex_unlock(&ps3_gpu_mutex); + + if (status) + dev_err(dev, "%s: lv1_gpu_fb_blit failed: %d\n", __func__, + status); +#ifdef HEAD_A + status = lv1_gpu_display_flip(ps3fb.context_handle, 0, frame_offset); + if (status) + dev_err(dev, "%s: lv1_gpu_display_flip failed: %d\n", __func__, + status); +#endif +#ifdef HEAD_B + status = lv1_gpu_display_flip(ps3fb.context_handle, 1, frame_offset); + if (status) + dev_err(dev, "%s: lv1_gpu_display_flip failed: %d\n", __func__, + status); +#endif +} + +static int ps3fb_sync(struct fb_info *info, u32 frame) +{ + struct ps3fb_par *par = info->par; + int error = 0; + u64 ddr_base, xdr_base; + + if (frame > par->num_frames - 1) { + dev_dbg(info->device, "%s: invalid frame number (%u)\n", + __func__, frame); + error = -EINVAL; + goto out; + } + + xdr_base = frame * par->xdr_frame_size; + ddr_base = frame * par->ddr_frame_size; + + ps3fb_sync_image(info->device, ddr_base + par->full_offset, + ddr_base + par->fb_offset, xdr_base + par->pan_offset, + par->width, par->height, par->ddr_line_length, + info->fix.line_length); + +out: + return error; +} + +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); + if (console_trylock()) { + ps3fb_sync(info, 0); /* single buffer */ + console_unlock(); + } + } + } + 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 xdr_line_length, ddr_line_length; + int mode; + + mode = ps3fb_find_mode(var, &ddr_line_length, &xdr_line_length); + if (!mode) + return -EINVAL; + + /* Virtual screen */ + if (var->xres_virtual > xdr_line_length / BPP) { + dev_dbg(info->device, + "Horizontal virtual screen size too large\n"); + return -EINVAL; + } + + if (var->xoffset + var->xres > var->xres_virtual || + var->yoffset + var->yres > var->yres_virtual) { + dev_dbg(info->device, "panning out-of-range\n"); + return -EINVAL; + } + + /* 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) { + dev_dbg(info->device, "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) { + dev_dbg(info->device, "Rotation is not supported\n"); + return -EINVAL; + } + + /* Memory limit */ + if (var->yres_virtual * xdr_line_length > info->fix.smem_len) { + dev_dbg(info->device, "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) +{ + struct ps3fb_par *par = info->par; + unsigned int mode, ddr_line_length, xdr_line_length, lines, maxlines; + unsigned int ddr_xoff, ddr_yoff, offset; + const struct fb_videomode *vmode; + u64 dst; + + mode = ps3fb_find_mode(&info->var, &ddr_line_length, &xdr_line_length); + if (!mode) + return -EINVAL; + + vmode = ps3fb_native_vmode(mode & PS3AV_MODE_MASK); + + 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 = xdr_line_length; + + par->ddr_line_length = ddr_line_length; + par->ddr_frame_size = vmode->yres * ddr_line_length; + par->xdr_frame_size = info->var.yres_virtual * xdr_line_length; + + par->num_frames = info->fix.smem_len / + max(par->ddr_frame_size, par->xdr_frame_size); + + /* Keep the special bits we cannot set using fb_var_screeninfo */ + par->new_mode_id = (par->new_mode_id & ~PS3AV_MODE_MASK) | mode; + + par->width = info->var.xres; + par->height = info->var.yres; + + /* Start of the virtual frame buffer (relative to fullscreen) */ + ddr_xoff = info->var.left_margin - vmode->left_margin; + ddr_yoff = info->var.upper_margin - vmode->upper_margin; + offset = ddr_yoff * ddr_line_length + ddr_xoff * BPP; + + par->fb_offset = GPU_ALIGN_UP(offset); + par->full_offset = par->fb_offset - offset; + par->pan_offset = info->var.yoffset * xdr_line_length + + info->var.xoffset * BPP; + + if (par->new_mode_id != par->mode_id) { + if (ps3av_set_video_mode(par->new_mode_id)) { + par->new_mode_id = par->mode_id; + return -EINVAL; + } + par->mode_id = par->new_mode_id; + } + + /* Clear XDR frame buffer memory */ + memset((void __force *)info->screen_base, 0, info->fix.smem_len); + + /* Clear DDR frame buffer memory */ + lines = vmode->yres * par->num_frames; + if (par->full_offset) + lines++; + maxlines = info->fix.smem_len / 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, vmode->xres, l, + ddr_line_length, ddr_line_length); + lines -= l; + } + + 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; +} + +static int ps3fb_pan_display(struct fb_var_screeninfo *var, + struct fb_info *info) +{ + struct ps3fb_par *par = info->par; + + par->pan_offset = var->yoffset * info->fix.line_length + + var->xoffset * BPP; + 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) +{ + int r; + + r = vm_iomap_memory(vma, info->fix.smem_start, info->fix.smem_len); + + dev_dbg(info->device, "ps3fb: mmap framebuffer P(%lx)->V(%lx)\n", + info->fix.smem_start + (vma->vm_pgoff << PAGE_SHIFT), + vma->vm_start); + + return r; +} + + /* + * Blank the display + */ + +static int ps3fb_blank(int blank, struct fb_info *info) +{ + int retval; + + dev_dbg(info->device, "%s: blank:%d\n", __func__, 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; +} + +static 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; +} + + + /* + * ioctl + */ + +static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd, + unsigned long arg) +{ + void __user *argp = (void __user *)arg; + u32 val; + int retval = -EFAULT; + + switch (cmd) { + case FBIOGET_VBLANK: + { + struct fb_vblank vblank; + dev_dbg(info->device, "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; + dev_dbg(info->device, "FBIO_WAITFORVSYNC:\n"); + if (get_user(crt, (u32 __user *) arg)) + break; + + retval = ps3fb_wait_for_vsync(crt); + break; + } + + case PS3FB_IOCTL_SETMODE: + { + struct ps3fb_par *par = info->par; + const struct fb_videomode *vmode; + struct fb_var_screeninfo var; + + if (copy_from_user(&val, argp, sizeof(val))) + break; + + if (!(val & PS3AV_MODE_MASK)) { + u32 id = ps3av_get_auto_mode(); + if (id > 0) + val = (val & ~PS3AV_MODE_MASK) | id; + } + dev_dbg(info->device, "PS3FB_IOCTL_SETMODE:%x\n", val); + retval = -EINVAL; + vmode = ps3fb_vmode(val); + if (vmode) { + var = info->var; + fb_videomode_to_var(&var, vmode); + console_lock(); + info->flags |= FBINFO_MISC_USEREVENT; + /* Force, in case only special bits changed */ + var.activate |= FB_ACTIVATE_FORCE; + par->new_mode_id = val; + retval = fb_set_var(info, &var); + info->flags &= ~FBINFO_MISC_USEREVENT; + console_unlock(); + } + break; + } + + case PS3FB_IOCTL_GETMODE: + val = ps3av_get_mode(); + dev_dbg(info->device, "PS3FB_IOCTL_GETMODE:%x\n", val); + if (!copy_to_user(argp, &val, sizeof(val))) + retval = 0; + break; + + case PS3FB_IOCTL_SCREENINFO: + { + struct ps3fb_par *par = info->par; + struct ps3fb_ioctl_res res; + dev_dbg(info->device, "PS3FB_IOCTL_SCREENINFO:\n"); + 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; + break; + } + + case PS3FB_IOCTL_ON: + dev_dbg(info->device, "PS3FB_IOCTL_ON:\n"); + atomic_inc(&ps3fb.ext_flip); + retval = 0; + break; + + case PS3FB_IOCTL_OFF: + dev_dbg(info->device, "PS3FB_IOCTL_OFF:\n"); + atomic_dec_if_positive(&ps3fb.ext_flip); + retval = 0; + break; + + case PS3FB_IOCTL_FSEL: + if (copy_from_user(&val, argp, sizeof(val))) + break; + + dev_dbg(info->device, "PS3FB_IOCTL_FSEL:%d\n", val); + console_lock(); + retval = ps3fb_sync(info, val); + console_unlock(); + break; + + default: + retval = -ENOIOCTLCMD; + break; + } + return retval; +} + +static int ps3fbd(void *arg) +{ + struct fb_info *info = arg; + + set_freezable(); + while (!kthread_should_stop()) { + try_to_freeze(); + set_current_state(TASK_INTERRUPTIBLE); + if (ps3fb.is_kicked) { + ps3fb.is_kicked = 0; + console_lock(); + ps3fb_sync(info, 0); /* single buffer */ + console_unlock(); + } + schedule(); + } + return 0; +} + +static irqreturn_t ps3fb_vsync_interrupt(int irq, void *ptr) +{ + struct device *dev = 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) { + dev_err(dev, "%s: lv1_gpu_context_intr failed: %d\n", __func__, + status); + return IRQ_NONE; + } + + if (v1 & (1 << GPU_INTR_STATUS_VSYNC_1)) { + /* VSYNC */ + ps3fb.vblank_count = head->vblank_count; + if (ps3fb.task && !ps3fb.is_blanked && + !atomic_read(&ps3fb.ext_flip)) { + ps3fb.is_kicked = 1; + wake_up_process(ps3fb.task); + } + wake_up_interruptible(&ps3fb.wait_vsync); + } + + return IRQ_HANDLED; +} + + +static struct fb_ops ps3fb_ops = { + .fb_open = ps3fb_open, + .fb_release = ps3fb_release, + .fb_read = fb_sys_read, + .fb_write = fb_sys_write, + .fb_check_var = ps3fb_check_var, + .fb_set_par = ps3fb_set_par, + .fb_setcolreg = ps3fb_setcolreg, + .fb_pan_display = ps3fb_pan_display, + .fb_fillrect = sys_fillrect, + .fb_copyarea = sys_copyarea, + .fb_imageblit = sys_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 = { + .id = DEVICE_NAME, + .type = FB_TYPE_PACKED_PIXELS, + .visual = FB_VISUAL_TRUECOLOR, + .accel = FB_ACCEL_NONE, +}; + +static int ps3fb_probe(struct ps3_system_bus_device *dev) +{ + struct fb_info *info; + struct ps3fb_par *par; + int retval; + 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; + struct gpu_driver_info *dinfo; + void *fb_start; + int status; + struct task_struct *task; + unsigned long max_ps3fb_size; + + if (ps3fb_videomemory.size < GPU_CMD_BUF_SIZE) { + dev_err(&dev->core, "%s: Not enough video memory\n", __func__); + return -ENOMEM; + } + + retval = ps3_open_hv_device(dev); + if (retval) { + dev_err(&dev->core, "%s: ps3_open_hv_device failed\n", + __func__); + goto err; + } + + if (!ps3fb_mode) + ps3fb_mode = ps3av_get_mode(); + dev_dbg(&dev->core, "ps3fb_mode: %d\n", ps3fb_mode); + + 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); + +#ifdef HEAD_A + status = lv1_gpu_display_sync(0x0, 0, L1GPU_DISPLAY_SYNC_VSYNC); + if (status) { + dev_err(&dev->core, "%s: lv1_gpu_display_sync failed: %d\n", + __func__, status); + retval = -ENODEV; + goto err_close_device; + } +#endif +#ifdef HEAD_B + status = lv1_gpu_display_sync(0x0, 1, L1GPU_DISPLAY_SYNC_VSYNC); + if (status) { + dev_err(&dev->core, "%s: lv1_gpu_display_sync failed: %d\n", + __func__, status); + retval = -ENODEV; + goto err_close_device; + } +#endif + + max_ps3fb_size = _ALIGN_UP(GPU_IOIF, 256*1024*1024) - GPU_IOIF; + if (ps3fb_videomemory.size > max_ps3fb_size) { + dev_info(&dev->core, "Limiting ps3fb mem size to %lu bytes\n", + max_ps3fb_size); + ps3fb_videomemory.size = max_ps3fb_size; + } + + /* get gpu context handle */ + status = lv1_gpu_memory_allocate(ps3fb_videomemory.size, 0, 0, 0, 0, + &ps3fb.memory_handle, &ddr_lpar); + if (status) { + dev_err(&dev->core, "%s: lv1_gpu_memory_allocate failed: %d\n", + __func__, status); + retval = -ENOMEM; + goto err_close_device; + } + dev_dbg(&dev->core, "ddr:lpar:0x%llx\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) { + dev_err(&dev->core, + "%s: lv1_gpu_context_allocate failed: %d\n", __func__, + status); + retval = -ENOMEM; + goto err_gpu_memory_free; + } + + /* vsync interrupt */ + dinfo = (void __force *)ioremap(lpar_driver_info, 128 * 1024); + if (!dinfo) { + dev_err(&dev->core, "%s: ioremap failed\n", __func__); + retval = -ENOMEM; + goto err_gpu_context_free; + } + + ps3fb.dinfo = dinfo; + dev_dbg(&dev->core, "version_driver:%x\n", dinfo->version_driver); + dev_dbg(&dev->core, "irq outlet:%x\n", dinfo->irq.irq_outlet); + dev_dbg(&dev->core, "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) { + dev_err(&dev->core, "%s: version_driver err:%x\n", __func__, + dinfo->version_driver); + retval = -EINVAL; + goto err_iounmap_dinfo; + } + + retval = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY, dinfo->irq.irq_outlet, + &ps3fb.irq_no); + if (retval) { + dev_err(&dev->core, "%s: ps3_alloc_irq failed %d\n", __func__, + retval); + goto err_iounmap_dinfo; + } + + retval = request_irq(ps3fb.irq_no, ps3fb_vsync_interrupt, + 0, DEVICE_NAME, &dev->core); + if (retval) { + dev_err(&dev->core, "%s: request_irq failed %d\n", __func__, + retval); + goto err_destroy_plug; + } + + dinfo->irq.mask = (1 << GPU_INTR_STATUS_VSYNC_1) | + (1 << GPU_INTR_STATUS_FLIP_1); + + /* Clear memory to prevent kernel info leakage into userspace */ + memset(ps3fb_videomemory.address, 0, ps3fb_videomemory.size); + + xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb_videomemory.address)); + + status = lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, + xdr_lpar, ps3fb_videomemory.size, + CBE_IOPTE_PP_W | CBE_IOPTE_PP_R | + CBE_IOPTE_M); + if (status) { + dev_err(&dev->core, "%s: lv1_gpu_context_iomap failed: %d\n", + __func__, status); + retval = -ENXIO; + goto err_free_irq; + } + + dev_dbg(&dev->core, "video:%p ioif:%lx lpar:%llx size:%lx\n", + ps3fb_videomemory.address, GPU_IOIF, xdr_lpar, + ps3fb_videomemory.size); + + status = lv1_gpu_fb_setup(ps3fb.context_handle, xdr_lpar, + GPU_CMD_BUF_SIZE, GPU_IOIF); + if (status) { + dev_err(&dev->core, "%s: lv1_gpu_fb_setup failed: %d\n", + __func__, status); + retval = -ENXIO; + goto err_context_unmap; + } + + info = framebuffer_alloc(sizeof(struct ps3fb_par), &dev->core); + if (!info) { + retval = -ENOMEM; + goto err_context_fb_close; + } + + par = info->par; + par->mode_id = ~ps3fb_mode; /* != ps3fb_mode, to trigger change */ + par->new_mode_id = ps3fb_mode; + par->num_frames = 1; + + info->fbops = &ps3fb_ops; + info->fix = ps3fb_fix; + + /* + * The GPU command buffer is at the start of video memory + * As we don't use the full command buffer, we can put the actual + * frame buffer at offset GPU_FB_START and save some precious XDR + * memory + */ + fb_start = ps3fb_videomemory.address + GPU_FB_START; + info->screen_base = (char __force __iomem *)fb_start; + info->fix.smem_start = __pa(fb_start); + info->fix.smem_len = ps3fb_videomemory.size - GPU_FB_START; + + info->pseudo_palette = par->pseudo_palette; + info->flags = FBINFO_DEFAULT | FBINFO_READS_FAST | + FBINFO_HWACCEL_XPAN | FBINFO_HWACCEL_YPAN; + + 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_vmode(par->new_mode_id), 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; + + ps3_system_bus_set_drvdata(dev, info); + + dev_info(info->device, "%s %s, using %u KiB of video memory\n", + dev_driver_string(info->dev), dev_name(info->dev), + info->fix.smem_len >> 10); + + task = kthread_run(ps3fbd, info, DEVICE_NAME); + if (IS_ERR(task)) { + retval = PTR_ERR(task); + goto err_unregister_framebuffer; + } + + ps3fb.task = task; + + return 0; + +err_unregister_framebuffer: + unregister_framebuffer(info); +err_fb_dealloc: + fb_dealloc_cmap(&info->cmap); +err_framebuffer_release: + framebuffer_release(info); +err_context_fb_close: + lv1_gpu_fb_close(ps3fb.context_handle); +err_context_unmap: + lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, xdr_lpar, + ps3fb_videomemory.size, CBE_IOPTE_M); +err_free_irq: + free_irq(ps3fb.irq_no, &dev->core); +err_destroy_plug: + ps3_irq_plug_destroy(ps3fb.irq_no); +err_iounmap_dinfo: + iounmap((u8 __force __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_close_device: + ps3_close_hv_device(dev); +err: + return retval; +} + +static int ps3fb_shutdown(struct ps3_system_bus_device *dev) +{ + struct fb_info *info = ps3_system_bus_get_drvdata(dev); + u64 xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb_videomemory.address)); + + dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__); + + atomic_inc(&ps3fb.ext_flip); /* flip off */ + ps3fb.dinfo->irq.mask = 0; + + if (ps3fb.task) { + struct task_struct *task = ps3fb.task; + ps3fb.task = NULL; + kthread_stop(task); + } + if (ps3fb.irq_no) { + free_irq(ps3fb.irq_no, &dev->core); + ps3_irq_plug_destroy(ps3fb.irq_no); + } + if (info) { + unregister_framebuffer(info); + fb_dealloc_cmap(&info->cmap); + framebuffer_release(info); + ps3_system_bus_set_drvdata(dev, NULL); + } + iounmap((u8 __force __iomem *)ps3fb.dinfo); + lv1_gpu_fb_close(ps3fb.context_handle); + lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, xdr_lpar, + ps3fb_videomemory.size, CBE_IOPTE_M); + lv1_gpu_context_free(ps3fb.context_handle); + lv1_gpu_memory_free(ps3fb.memory_handle); + ps3_close_hv_device(dev); + dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__); + + return 0; +} + +static struct ps3_system_bus_driver ps3fb_driver = { + .match_id = PS3_MATCH_ID_GPU, + .match_sub_id = PS3_MATCH_SUB_ID_GPU_FB, + .core.name = DEVICE_NAME, + .core.owner = THIS_MODULE, + .probe = ps3fb_probe, + .remove = ps3fb_shutdown, + .shutdown = ps3fb_shutdown, +}; + +static int __init ps3fb_setup(void) +{ + char *options; + +#ifdef MODULE + return 0; +#endif + + if (fb_get_options(DEVICE_NAME, &options)) + return -ENXIO; + + if (!options || !*options) + return 0; + + while (1) { + char *this_opt = strsep(&options, ","); + + 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; + } + return 0; +} + +static int __init ps3fb_init(void) +{ + if (!ps3fb_videomemory.address || ps3fb_setup()) + return -ENXIO; + + return ps3_system_bus_driver_register(&ps3fb_driver); +} + +static void __exit ps3fb_exit(void) +{ + pr_debug(" -> %s:%d\n", __func__, __LINE__); + ps3_system_bus_driver_unregister(&ps3fb_driver); + pr_debug(" <- %s:%d\n", __func__, __LINE__); +} + +module_init(ps3fb_init); +module_exit(ps3fb_exit); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("PS3 GPU Frame Buffer Driver"); +MODULE_AUTHOR("Sony Computer Entertainment Inc."); +MODULE_ALIAS(PS3_MODULE_ALIAS_GPU_FB); |