--- /dev/null
+/*
+ * 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);
Code Review / kvmfornfv.git / blobdiff