2007-02-12 08:55:23 +00:00
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/*
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* linux/drivers/video/ps3fb.c -- PS3 GPU frame buffer device
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*
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* Copyright (C) 2006 Sony Computer Entertainment Inc.
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* Copyright 2006, 2007 Sony Corporation
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*
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* This file is based on :
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*
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* linux/drivers/video/vfb.c -- Virtual frame buffer device
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*
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* Copyright (C) 2002 James Simmons
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*
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* Copyright (C) 1997 Geert Uytterhoeven
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of this archive for
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* more details.
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/string.h>
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#include <linux/mm.h>
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#include <linux/interrupt.h>
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#include <linux/console.h>
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#include <linux/ioctl.h>
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2007-05-02 12:48:31 +00:00
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#include <linux/kthread.h>
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#include <linux/freezer.h>
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2007-10-16 08:29:04 +00:00
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#include <linux/uaccess.h>
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2007-02-12 08:55:23 +00:00
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#include <linux/fb.h>
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#include <linux/init.h>
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#include <asm/abs_addr.h>
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#include <asm/lv1call.h>
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#include <asm/ps3av.h>
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#include <asm/ps3fb.h>
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#include <asm/ps3.h>
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2007-06-15 22:05:38 +00:00
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#define DEVICE_NAME "ps3fb"
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2007-02-12 08:55:23 +00:00
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#define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC 0x101
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#define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP 0x102
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#define L1GPU_CONTEXT_ATTRIBUTE_FB_SETUP 0x600
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#define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT 0x601
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#define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT_SYNC 0x602
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#define L1GPU_FB_BLIT_WAIT_FOR_COMPLETION (1ULL << 32)
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#define L1GPU_DISPLAY_SYNC_HSYNC 1
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#define L1GPU_DISPLAY_SYNC_VSYNC 2
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2007-12-19 10:16:41 +00:00
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#define GPU_CMD_BUF_SIZE (2 * 1024 * 1024)
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#define GPU_FB_START (64 * 1024)
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2007-02-12 08:55:23 +00:00
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#define GPU_IOIF (0x0d000000UL)
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2007-10-16 08:29:49 +00:00
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#define GPU_ALIGN_UP(x) _ALIGN_UP((x), 64)
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2007-10-16 08:29:51 +00:00
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#define GPU_MAX_LINE_LENGTH (65536 - 64)
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2007-02-12 08:55:23 +00:00
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#define PS3FB_FULL_MODE_BIT 0x80
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#define GPU_INTR_STATUS_VSYNC_0 0 /* vsync on head A */
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#define GPU_INTR_STATUS_VSYNC_1 1 /* vsync on head B */
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#define GPU_INTR_STATUS_FLIP_0 3 /* flip head A */
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#define GPU_INTR_STATUS_FLIP_1 4 /* flip head B */
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#define GPU_INTR_STATUS_QUEUE_0 5 /* queue head A */
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#define GPU_INTR_STATUS_QUEUE_1 6 /* queue head B */
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#define GPU_DRIVER_INFO_VERSION 0x211
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/* gpu internals */
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struct display_head {
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u64 be_time_stamp;
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u32 status;
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u32 offset;
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u32 res1;
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u32 res2;
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u32 field;
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u32 reserved1;
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u64 res3;
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u32 raster;
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u64 vblank_count;
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u32 field_vsync;
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u32 reserved2;
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};
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struct gpu_irq {
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u32 irq_outlet;
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u32 status;
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u32 mask;
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u32 video_cause;
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u32 graph_cause;
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u32 user_cause;
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u32 res1;
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u64 res2;
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u32 reserved[4];
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};
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struct gpu_driver_info {
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u32 version_driver;
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u32 version_gpu;
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u32 memory_size;
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u32 hardware_channel;
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u32 nvcore_frequency;
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u32 memory_frequency;
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u32 reserved[1063];
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struct display_head display_head[8];
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struct gpu_irq irq;
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};
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struct ps3fb_priv {
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unsigned int irq_no;
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u64 context_handle, memory_handle;
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void *xdr_ea;
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2007-10-16 08:29:48 +00:00
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size_t xdr_size;
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2007-02-12 08:55:23 +00:00
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struct gpu_driver_info *dinfo;
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u64 vblank_count; /* frame count */
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wait_queue_head_t wait_vsync;
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atomic_t ext_flip; /* on/off flip with vsync */
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atomic_t f_count; /* fb_open count */
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int is_blanked;
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2007-05-02 12:48:31 +00:00
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int is_kicked;
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struct task_struct *task;
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2007-02-12 08:55:23 +00:00
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};
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static struct ps3fb_priv ps3fb;
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2007-10-16 08:29:48 +00:00
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struct ps3fb_par {
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u32 pseudo_palette[16];
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int mode_id, new_mode_id;
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int res_index;
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unsigned int num_frames; /* num of frame buffers */
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2007-10-16 08:29:49 +00:00
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unsigned int width;
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unsigned int height;
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unsigned long full_offset; /* start of fullscreen DDR fb */
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unsigned long fb_offset; /* start of actual DDR fb */
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2007-10-16 08:29:50 +00:00
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unsigned long pan_offset;
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2007-10-16 08:29:48 +00:00
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};
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2007-02-12 08:55:23 +00:00
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struct ps3fb_res_table {
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u32 xres;
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u32 yres;
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u32 xoff;
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u32 yoff;
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u32 type;
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};
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#define PS3FB_RES_FULL 1
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static const struct ps3fb_res_table ps3fb_res[] = {
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/* res_x,y margin_x,y full */
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{ 720, 480, 72, 48 , 0},
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{ 720, 576, 72, 58 , 0},
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{ 1280, 720, 78, 38 , 0},
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{ 1920, 1080, 116, 58 , 0},
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/* full mode */
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{ 720, 480, 0, 0 , PS3FB_RES_FULL},
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{ 720, 576, 0, 0 , PS3FB_RES_FULL},
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{ 1280, 720, 0, 0 , PS3FB_RES_FULL},
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{ 1920, 1080, 0, 0 , PS3FB_RES_FULL},
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/* vesa: normally full mode */
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{ 1280, 768, 0, 0 , 0},
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{ 1280, 1024, 0, 0 , 0},
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{ 1920, 1200, 0, 0 , 0},
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{ 0, 0, 0, 0 , 0} };
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/* default resolution */
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2007-06-15 22:05:38 +00:00
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#define GPU_RES_INDEX 0 /* 720 x 480 */
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2007-02-12 08:55:23 +00:00
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static const struct fb_videomode ps3fb_modedb[] = {
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/* 60 Hz broadcast modes (modes "1" to "5") */
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{
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/* 480i */
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"480i", 60, 576, 384, 74074, 130, 89, 78, 57, 63, 6,
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FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
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}, {
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/* 480p */
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"480p", 60, 576, 384, 37037, 130, 89, 78, 57, 63, 6,
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FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
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}, {
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/* 720p */
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"720p", 60, 1124, 644, 13481, 298, 148, 57, 44, 80, 5,
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FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
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}, {
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/* 1080i */
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"1080i", 60, 1688, 964, 13481, 264, 160, 94, 62, 88, 5,
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FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
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}, {
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/* 1080p */
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"1080p", 60, 1688, 964, 6741, 264, 160, 94, 62, 88, 5,
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FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
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},
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/* 50 Hz broadcast modes (modes "6" to "10") */
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{
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/* 576i */
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"576i", 50, 576, 460, 74074, 142, 83, 97, 63, 63, 5,
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FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
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}, {
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/* 576p */
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"576p", 50, 576, 460, 37037, 142, 83, 97, 63, 63, 5,
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FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
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}, {
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/* 720p */
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"720p", 50, 1124, 644, 13468, 298, 478, 57, 44, 80, 5,
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FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
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}, {
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/* 1080 */
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"1080i", 50, 1688, 964, 13468, 264, 600, 94, 62, 88, 5,
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FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
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}, {
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/* 1080p */
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"1080p", 50, 1688, 964, 6734, 264, 600, 94, 62, 88, 5,
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FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
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},
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/* VESA modes (modes "11" to "13") */
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{
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/* WXGA */
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"wxga", 60, 1280, 768, 12924, 160, 24, 29, 3, 136, 6,
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0, FB_VMODE_NONINTERLACED,
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FB_MODE_IS_VESA
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}, {
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/* SXGA */
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"sxga", 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3,
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FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED,
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FB_MODE_IS_VESA
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}, {
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/* WUXGA */
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"wuxga", 60, 1920, 1200, 6494, 80, 48, 26, 3, 32, 6,
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FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED,
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FB_MODE_IS_VESA
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},
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/* 60 Hz broadcast modes (full resolution versions of modes "1" to "5") */
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{
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/* 480if */
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"480if", 60, 720, 480, 74074, 58, 17, 30, 9, 63, 6,
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FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
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}, {
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/* 480pf */
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"480pf", 60, 720, 480, 37037, 58, 17, 30, 9, 63, 6,
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FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
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}, {
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/* 720pf */
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"720pf", 60, 1280, 720, 13481, 220, 70, 19, 6, 80, 5,
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FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
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}, {
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/* 1080if */
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"1080if", 60, 1920, 1080, 13481, 148, 44, 36, 4, 88, 5,
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FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
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}, {
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/* 1080pf */
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"1080pf", 60, 1920, 1080, 6741, 148, 44, 36, 4, 88, 5,
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FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
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},
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/* 50 Hz broadcast modes (full resolution versions of modes "6" to "10") */
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{
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/* 576if */
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"576if", 50, 720, 576, 74074, 70, 11, 39, 5, 63, 5,
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FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
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}, {
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/* 576pf */
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"576pf", 50, 720, 576, 37037, 70, 11, 39, 5, 63, 5,
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FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
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}, {
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/* 720pf */
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"720pf", 50, 1280, 720, 13468, 220, 400, 19, 6, 80, 5,
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FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
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}, {
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/* 1080if */
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"1080f", 50, 1920, 1080, 13468, 148, 484, 36, 4, 88, 5,
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FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
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}, {
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/* 1080pf */
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"1080pf", 50, 1920, 1080, 6734, 148, 484, 36, 4, 88, 5,
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FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
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}
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};
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#define HEAD_A
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#define HEAD_B
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#define X_OFF(i) (ps3fb_res[i].xoff) /* left/right margin (pixel) */
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#define Y_OFF(i) (ps3fb_res[i].yoff) /* top/bottom margin (pixel) */
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#define WIDTH(i) (ps3fb_res[i].xres) /* width of FB */
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#define HEIGHT(i) (ps3fb_res[i].yres) /* height of FB */
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2007-10-16 08:29:48 +00:00
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#define BPP 4 /* number of bytes per pixel */
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/* Start of the virtual frame buffer (relative to fullscreen ) */
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#define VP_OFF(i) ((WIDTH(i) * Y_OFF(i) + X_OFF(i)) * BPP)
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2007-02-12 08:55:23 +00:00
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2007-05-02 12:48:34 +00:00
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static int ps3fb_mode;
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2007-06-15 22:05:38 +00:00
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module_param(ps3fb_mode, int, 0);
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2007-02-12 08:55:23 +00:00
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2007-06-15 22:05:38 +00:00
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static char *mode_option __devinitdata;
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2007-02-12 08:55:23 +00:00
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2007-10-16 08:29:25 +00:00
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static int ps3fb_get_res_table(u32 xres, u32 yres, int mode)
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2007-02-12 08:55:23 +00:00
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{
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int full_mode;
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unsigned int i;
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u32 x, y, f;
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2007-10-16 08:29:25 +00:00
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full_mode = (mode & PS3FB_FULL_MODE_BIT) ? PS3FB_RES_FULL : 0;
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2007-02-12 08:55:23 +00:00
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for (i = 0;; i++) {
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x = ps3fb_res[i].xres;
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y = ps3fb_res[i].yres;
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f = ps3fb_res[i].type;
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if (!x) {
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2007-10-16 08:29:45 +00:00
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pr_debug("ERROR: ps3fb_get_res_table()\n");
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2007-02-12 08:55:23 +00:00
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return -1;
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}
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if (full_mode == PS3FB_RES_FULL && f != PS3FB_RES_FULL)
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continue;
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if (x == xres && (yres == 0 || y == yres))
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break;
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|
|
|
|
|
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,
|
2007-10-16 08:29:51 +00:00
|
|
|
u32 *ddr_line_length, u32 *xdr_line_length)
|
2007-02-12 08:55:23 +00:00
|
|
|
{
|
|
|
|
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 &&
|
2007-10-16 08:29:51 +00:00
|
|
|
(var->vmode & FB_VMODE_MASK) == ps3fb_modedb[i].vmode)
|
|
|
|
goto found;
|
2007-02-12 08:55:23 +00:00
|
|
|
|
2007-10-16 08:29:45 +00:00
|
|
|
pr_debug("ps3fb_find_mode: mode not found\n");
|
2007-02-12 08:55:23 +00:00
|
|
|
return 0;
|
2007-10-16 08:29:51 +00:00
|
|
|
|
|
|
|
found:
|
|
|
|
/* Cropped broadcast modes use the full line length */
|
|
|
|
*ddr_line_length = ps3fb_modedb[i < 10 ? i + 13 : i].xres * BPP;
|
|
|
|
|
|
|
|
if (ps3_compare_firmware_version(1, 9, 0) >= 0) {
|
|
|
|
*xdr_line_length = GPU_ALIGN_UP(max(var->xres,
|
|
|
|
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;
|
|
|
|
|
|
|
|
/* Full broadcast modes have the full mode bit set */
|
|
|
|
mode = i > 12 ? (i - 12) | PS3FB_FULL_MODE_BIT : i + 1;
|
|
|
|
|
|
|
|
pr_debug("ps3fb_find_mode: mode %u\n", mode);
|
|
|
|
|
|
|
|
return mode;
|
2007-02-12 08:55:23 +00:00
|
|
|
}
|
|
|
|
|
2007-10-16 08:29:48 +00:00
|
|
|
static const struct fb_videomode *ps3fb_default_mode(int id)
|
2007-02-12 08:55:23 +00:00
|
|
|
{
|
2007-10-16 08:29:48 +00:00
|
|
|
u32 mode = id & PS3AV_MODE_MASK;
|
2007-02-12 08:55:23 +00:00
|
|
|
u32 flags;
|
|
|
|
|
|
|
|
if (mode < 1 || mode > 13)
|
|
|
|
return NULL;
|
|
|
|
|
2007-10-16 08:29:48 +00:00
|
|
|
flags = id & ~PS3AV_MODE_MASK;
|
2007-02-12 08:55:23 +00:00
|
|
|
|
|
|
|
if (mode <= 10 && flags & PS3FB_FULL_MODE_BIT) {
|
|
|
|
/* Full broadcast mode */
|
|
|
|
return &ps3fb_modedb[mode + 12];
|
|
|
|
}
|
|
|
|
|
|
|
|
return &ps3fb_modedb[mode - 1];
|
|
|
|
}
|
|
|
|
|
2007-10-16 08:29:49 +00:00
|
|
|
static void ps3fb_sync_image(struct device *dev, u64 frame_offset,
|
|
|
|
u64 dst_offset, u64 src_offset, u32 width,
|
2007-10-16 08:29:51 +00:00
|
|
|
u32 height, u32 dst_line_length,
|
|
|
|
u32 src_line_length)
|
2007-02-12 08:55:23 +00:00
|
|
|
{
|
2007-10-16 08:29:49 +00:00
|
|
|
int status;
|
2007-10-16 08:29:51 +00:00
|
|
|
u64 line_length;
|
|
|
|
|
|
|
|
line_length = dst_line_length;
|
|
|
|
if (src_line_length != dst_line_length)
|
|
|
|
line_length |= (u64)src_line_length << 32;
|
2007-02-12 08:55:23 +00:00
|
|
|
|
2007-12-19 10:16:41 +00:00
|
|
|
src_offset += GPU_FB_START;
|
2007-02-12 08:55:23 +00:00
|
|
|
status = lv1_gpu_context_attribute(ps3fb.context_handle,
|
|
|
|
L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT,
|
2007-10-16 08:29:49 +00:00
|
|
|
dst_offset, GPU_IOIF + src_offset,
|
2007-02-12 08:55:23 +00:00
|
|
|
L1GPU_FB_BLIT_WAIT_FOR_COMPLETION |
|
2007-10-16 08:29:49 +00:00
|
|
|
(width << 16) | height,
|
|
|
|
line_length);
|
2007-02-12 08:55:23 +00:00
|
|
|
if (status)
|
2007-10-16 08:29:49 +00:00
|
|
|
dev_err(dev,
|
2007-10-16 08:29:45 +00:00
|
|
|
"%s: lv1_gpu_context_attribute FB_BLIT failed: %d\n",
|
|
|
|
__func__, status);
|
2007-02-12 08:55:23 +00:00
|
|
|
#ifdef HEAD_A
|
|
|
|
status = lv1_gpu_context_attribute(ps3fb.context_handle,
|
|
|
|
L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
|
2007-10-16 08:29:49 +00:00
|
|
|
0, frame_offset, 0, 0);
|
2007-02-12 08:55:23 +00:00
|
|
|
if (status)
|
2007-10-16 08:29:49 +00:00
|
|
|
dev_err(dev, "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
|
2007-10-16 08:29:45 +00:00
|
|
|
__func__, status);
|
2007-02-12 08:55:23 +00:00
|
|
|
#endif
|
|
|
|
#ifdef HEAD_B
|
|
|
|
status = lv1_gpu_context_attribute(ps3fb.context_handle,
|
|
|
|
L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
|
2007-10-16 08:29:49 +00:00
|
|
|
1, frame_offset, 0, 0);
|
2007-02-12 08:55:23 +00:00
|
|
|
if (status)
|
2007-10-16 08:29:49 +00:00
|
|
|
dev_err(dev, "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
|
2007-10-16 08:29:45 +00:00
|
|
|
__func__, status);
|
2007-02-12 08:55:23 +00:00
|
|
|
#endif
|
2007-10-16 08:29:49 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static int ps3fb_sync(struct fb_info *info, u32 frame)
|
|
|
|
{
|
|
|
|
struct ps3fb_par *par = info->par;
|
|
|
|
int i, error = 0;
|
2007-10-16 08:29:51 +00:00
|
|
|
u32 ddr_line_length, xdr_line_length;
|
|
|
|
u64 ddr_base, xdr_base;
|
2007-10-16 08:29:49 +00:00
|
|
|
|
|
|
|
if (frame > par->num_frames - 1) {
|
|
|
|
dev_dbg(info->device, "%s: invalid frame number (%u)\n",
|
|
|
|
__func__, frame);
|
|
|
|
error = -EINVAL;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
i = par->res_index;
|
2007-10-16 08:29:51 +00:00
|
|
|
xdr_line_length = info->fix.line_length;
|
|
|
|
ddr_line_length = ps3fb_res[i].xres * BPP;
|
|
|
|
xdr_base = frame * info->var.yres_virtual * xdr_line_length;
|
|
|
|
ddr_base = frame * ps3fb_res[i].yres * ddr_line_length;
|
2007-10-16 08:29:49 +00:00
|
|
|
|
2007-10-16 08:29:51 +00:00
|
|
|
ps3fb_sync_image(info->device, ddr_base + par->full_offset,
|
|
|
|
ddr_base + par->fb_offset, xdr_base + par->pan_offset,
|
|
|
|
par->width, par->height, ddr_line_length,
|
|
|
|
xdr_line_length);
|
2007-10-16 08:29:48 +00:00
|
|
|
|
|
|
|
out:
|
|
|
|
return error;
|
2007-02-12 08:55:23 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static int ps3fb_open(struct fb_info *info, int user)
|
|
|
|
{
|
|
|
|
atomic_inc(&ps3fb.f_count);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int ps3fb_release(struct fb_info *info, int user)
|
|
|
|
{
|
|
|
|
if (atomic_dec_and_test(&ps3fb.f_count)) {
|
|
|
|
if (atomic_read(&ps3fb.ext_flip)) {
|
|
|
|
atomic_set(&ps3fb.ext_flip, 0);
|
ps3fb: fix deadlock on kexec()
Since the introduction of the acquire_console_sem calls in
0333d83509c7d8496c8965b5ba9bc0c98e83c259, kexecing can cause the
kernel to deadlock:
ps3fb_shutdown()
-> unregister_framebuffer()
-> fb_notifier_call_chain(FB_EVENT_FB_UNBIND)
-> fbcon_fb_unbind()
-> unbind_con_driver()
-> bind_con_driver()
[ acquires console_sem ]
-> fbcon_deinit()
-> fbops->fb_release(newinfo, 0)
-> ps3fb_release()
-> ps3fb_sync()
[ acquires console_sem ]
This change avoids the deadlock by moving the acquire_console_sem()
out of ps3fb_sync(), and puts it into the two other callsites, leaving
ps3fb_release() to call ps3fb_sync() without the console semaphore.
[Geert]
- Corrected call sequence above
- ps3fb_release() may be called with and without console_sem held. This is an
inconsistency that should be fixed at the fb level, but for now, try to
acquire console_sem in ps3fb_release().
I think it's safer to let ps3fb_release() try to acquire console_sem and
not refresh the screen if it fails, than to call ps3fb_sync() without
holding console_sem, as ps3fb_par may be modified at the same time, causing
crashes or lockups.
Besides, ps3fb_release() only calls ps3fb_sync() to refresh the screen
when display flipping is disabled, which is an uncommon case (except during
shutdown/kexec).
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-01-11 13:28:04 +00:00
|
|
|
if (!try_acquire_console_sem()) {
|
|
|
|
ps3fb_sync(info, 0); /* single buffer */
|
|
|
|
release_console_sem();
|
|
|
|
}
|
2007-02-12 08:55:23 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
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)
|
|
|
|
{
|
2007-10-16 08:29:51 +00:00
|
|
|
u32 xdr_line_length, ddr_line_length;
|
2007-02-12 08:55:23 +00:00
|
|
|
int mode;
|
|
|
|
|
2007-10-16 08:29:45 +00:00
|
|
|
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);
|
2007-02-12 08:55:23 +00:00
|
|
|
|
|
|
|
/* FIXME For now we do exact matches only */
|
2007-10-16 08:29:51 +00:00
|
|
|
mode = ps3fb_find_mode(var, &ddr_line_length, &xdr_line_length);
|
2007-02-12 08:55:23 +00:00
|
|
|
if (!mode)
|
|
|
|
return -EINVAL;
|
|
|
|
|
2007-10-16 08:29:50 +00:00
|
|
|
/* Virtual screen */
|
|
|
|
if (var->xres_virtual < var->xres)
|
|
|
|
var->xres_virtual = var->xres;
|
|
|
|
if (var->yres_virtual < var->yres)
|
|
|
|
var->yres_virtual = var->yres;
|
2007-02-12 08:55:23 +00:00
|
|
|
|
2007-10-16 08:29:51 +00:00
|
|
|
if (var->xres_virtual > xdr_line_length / BPP) {
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_dbg(info->device,
|
2007-10-16 08:29:50 +00:00
|
|
|
"Horizontal virtual screen size too large\n");
|
2007-02-12 08:55:23 +00:00
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
2007-10-16 08:29:50 +00:00
|
|
|
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;
|
|
|
|
}
|
2007-02-12 08:55:23 +00:00
|
|
|
|
|
|
|
/* 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) {
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_dbg(info->device, "We support ARGB8888 only\n");
|
2007-02-12 08:55:23 +00:00
|
|
|
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) {
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_dbg(info->device, "Rotation is not supported\n");
|
2007-02-12 08:55:23 +00:00
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Memory limit */
|
2007-10-16 08:29:51 +00:00
|
|
|
if (var->yres_virtual * xdr_line_length > ps3fb.xdr_size) {
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_dbg(info->device, "Not enough memory\n");
|
2007-02-12 08:55:23 +00:00
|
|
|
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)
|
|
|
|
{
|
2007-10-16 08:29:48 +00:00
|
|
|
struct ps3fb_par *par = info->par;
|
2007-10-16 08:29:51 +00:00
|
|
|
unsigned int mode, ddr_line_length, xdr_line_length, lines, maxlines;
|
2007-02-12 08:55:23 +00:00
|
|
|
int i;
|
2007-10-16 08:29:51 +00:00
|
|
|
unsigned long offset;
|
|
|
|
u64 dst;
|
2007-02-12 08:55:23 +00:00
|
|
|
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_dbg(info->device, "xres:%d xv:%d yres:%d yv:%d clock:%d\n",
|
2007-02-12 08:55:23 +00:00
|
|
|
info->var.xres, info->var.xres_virtual,
|
|
|
|
info->var.yres, info->var.yres_virtual, info->var.pixclock);
|
|
|
|
|
2007-10-16 08:29:51 +00:00
|
|
|
mode = ps3fb_find_mode(&info->var, &ddr_line_length, &xdr_line_length);
|
2007-02-12 08:55:23 +00:00
|
|
|
if (!mode)
|
|
|
|
return -EINVAL;
|
|
|
|
|
2007-10-16 08:29:25 +00:00
|
|
|
i = ps3fb_get_res_table(info->var.xres, info->var.yres, mode);
|
2007-10-16 08:29:48 +00:00
|
|
|
par->res_index = i;
|
2007-10-16 08:29:25 +00:00
|
|
|
|
2007-10-16 08:29:49 +00:00
|
|
|
info->fix.smem_start = virt_to_abs(ps3fb.xdr_ea);
|
|
|
|
info->fix.smem_len = ps3fb.xdr_size;
|
2007-10-16 08:29:50 +00:00
|
|
|
info->fix.xpanstep = info->var.xres_virtual > info->var.xres ? 1 : 0;
|
|
|
|
info->fix.ypanstep = info->var.yres_virtual > info->var.yres ? 1 : 0;
|
2007-10-16 08:29:51 +00:00
|
|
|
info->fix.line_length = xdr_line_length;
|
2007-10-16 08:29:50 +00:00
|
|
|
|
2007-10-16 08:29:49 +00:00
|
|
|
info->screen_base = (char __iomem *)ps3fb.xdr_ea;
|
2007-02-12 08:55:23 +00:00
|
|
|
|
2007-10-16 08:29:51 +00:00
|
|
|
par->num_frames = ps3fb.xdr_size /
|
|
|
|
max(ps3fb_res[i].yres * ddr_line_length,
|
|
|
|
info->var.yres_virtual * xdr_line_length);
|
2007-02-12 08:55:23 +00:00
|
|
|
|
|
|
|
/* Keep the special bits we cannot set using fb_var_screeninfo */
|
2007-10-16 08:29:48 +00:00
|
|
|
par->new_mode_id = (par->new_mode_id & ~PS3AV_MODE_MASK) | mode;
|
2007-02-12 08:55:23 +00:00
|
|
|
|
2007-10-16 08:29:49 +00:00
|
|
|
par->width = info->var.xres;
|
|
|
|
par->height = info->var.yres;
|
|
|
|
offset = VP_OFF(i);
|
|
|
|
par->fb_offset = GPU_ALIGN_UP(offset);
|
|
|
|
par->full_offset = par->fb_offset - offset;
|
2007-10-16 08:29:51 +00:00
|
|
|
par->pan_offset = info->var.yoffset * xdr_line_length +
|
2007-10-16 08:29:50 +00:00
|
|
|
info->var.xoffset * BPP;
|
2007-10-16 08:29:49 +00:00
|
|
|
|
2007-10-16 08:29:48 +00:00
|
|
|
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;
|
|
|
|
}
|
2007-02-12 08:55:23 +00:00
|
|
|
|
2007-10-16 08:29:49 +00:00
|
|
|
/* Clear XDR frame buffer memory */
|
|
|
|
memset(ps3fb.xdr_ea, 0, ps3fb.xdr_size);
|
|
|
|
|
|
|
|
/* Clear DDR frame buffer memory */
|
|
|
|
lines = ps3fb_res[i].yres * par->num_frames;
|
|
|
|
if (par->full_offset)
|
|
|
|
lines++;
|
2007-10-16 08:29:51 +00:00
|
|
|
maxlines = ps3fb.xdr_size / ddr_line_length;
|
|
|
|
for (dst = 0; lines; dst += maxlines * ddr_line_length) {
|
2007-10-16 08:29:49 +00:00
|
|
|
unsigned int l = min(lines, maxlines);
|
|
|
|
ps3fb_sync_image(info->device, 0, dst, 0, ps3fb_res[i].xres, l,
|
2007-10-16 08:29:51 +00:00
|
|
|
ddr_line_length, ddr_line_length);
|
2007-10-16 08:29:49 +00:00
|
|
|
lines -= l;
|
|
|
|
}
|
|
|
|
|
2007-02-12 08:55:23 +00:00
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
2007-10-16 08:29:50 +00:00
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
2007-02-12 08:55:23 +00:00
|
|
|
/*
|
|
|
|
* 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;
|
|
|
|
|
|
|
|
size = vma->vm_end - vma->vm_start;
|
|
|
|
offset = vma->vm_pgoff << PAGE_SHIFT;
|
|
|
|
if (offset + size > info->fix.smem_len)
|
|
|
|
return -EINVAL;
|
|
|
|
|
2007-10-16 08:29:48 +00:00
|
|
|
offset += info->fix.smem_start;
|
2007-02-12 08:55:23 +00:00
|
|
|
if (remap_pfn_range(vma, vma->vm_start, offset >> PAGE_SHIFT,
|
|
|
|
size, vma->vm_page_prot))
|
|
|
|
return -EAGAIN;
|
|
|
|
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_dbg(info->device, "ps3fb: mmap framebuffer P(%lx)->V(%lx)\n",
|
|
|
|
offset, vma->vm_start);
|
2007-02-12 08:55:23 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Blank the display
|
|
|
|
*/
|
|
|
|
|
|
|
|
static int ps3fb_blank(int blank, struct fb_info *info)
|
|
|
|
{
|
|
|
|
int retval;
|
|
|
|
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_dbg(info->device, "%s: blank:%d\n", __func__, blank);
|
2007-02-12 08:55:23 +00:00
|
|
|
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)
|
|
|
|
{
|
2007-11-15 00:58:33 +00:00
|
|
|
memset(vblank, 0, sizeof(*vblank));
|
2007-02-12 08:55:23 +00:00
|
|
|
vblank->flags = FB_VBLANK_HAVE_VSYNC;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2007-10-16 08:29:47 +00:00
|
|
|
static int ps3fb_wait_for_vsync(u32 crtc)
|
2007-02-12 08:55:23 +00:00
|
|
|
{
|
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
2007-10-16 08:29:47 +00:00
|
|
|
static void ps3fb_flip_ctl(int on, void *data)
|
2007-02-12 08:55:23 +00:00
|
|
|
{
|
2007-06-15 22:05:38 +00:00
|
|
|
struct ps3fb_priv *priv = data;
|
2007-05-02 12:48:32 +00:00
|
|
|
if (on)
|
2007-06-15 22:05:38 +00:00
|
|
|
atomic_dec_if_positive(&priv->ext_flip);
|
2007-05-02 12:48:32 +00:00
|
|
|
else
|
2007-06-15 22:05:38 +00:00
|
|
|
atomic_inc(&priv->ext_flip);
|
2007-02-12 08:55:23 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* ioctl
|
|
|
|
*/
|
|
|
|
|
|
|
|
static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd,
|
|
|
|
unsigned long arg)
|
|
|
|
{
|
|
|
|
void __user *argp = (void __user *)arg;
|
2007-10-16 08:29:48 +00:00
|
|
|
u32 val;
|
2007-02-12 08:55:23 +00:00
|
|
|
int retval = -EFAULT;
|
|
|
|
|
|
|
|
switch (cmd) {
|
|
|
|
case FBIOGET_VBLANK:
|
|
|
|
{
|
|
|
|
struct fb_vblank vblank;
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_dbg(info->device, "FBIOGET_VBLANK:\n");
|
2007-02-12 08:55:23 +00:00
|
|
|
retval = ps3fb_get_vblank(&vblank);
|
|
|
|
if (retval)
|
|
|
|
break;
|
|
|
|
|
|
|
|
if (copy_to_user(argp, &vblank, sizeof(vblank)))
|
|
|
|
retval = -EFAULT;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
case FBIO_WAITFORVSYNC:
|
|
|
|
{
|
|
|
|
u32 crt;
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_dbg(info->device, "FBIO_WAITFORVSYNC:\n");
|
2007-02-12 08:55:23 +00:00
|
|
|
if (get_user(crt, (u32 __user *) arg))
|
|
|
|
break;
|
|
|
|
|
|
|
|
retval = ps3fb_wait_for_vsync(crt);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
case PS3FB_IOCTL_SETMODE:
|
|
|
|
{
|
2007-10-16 08:29:48 +00:00
|
|
|
struct ps3fb_par *par = info->par;
|
2007-02-12 08:55:23 +00:00
|
|
|
const struct fb_videomode *mode;
|
|
|
|
struct fb_var_screeninfo var;
|
|
|
|
|
|
|
|
if (copy_from_user(&val, argp, sizeof(val)))
|
|
|
|
break;
|
|
|
|
|
2007-05-02 12:48:36 +00:00
|
|
|
if (!(val & PS3AV_MODE_MASK)) {
|
2007-10-16 08:29:44 +00:00
|
|
|
u32 id = ps3av_get_auto_mode();
|
2007-05-02 12:48:36 +00:00
|
|
|
if (id > 0)
|
|
|
|
val = (val & ~PS3AV_MODE_MASK) | id;
|
|
|
|
}
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_dbg(info->device, "PS3FB_IOCTL_SETMODE:%x\n", val);
|
2007-02-12 08:55:23 +00:00
|
|
|
retval = -EINVAL;
|
2007-10-16 08:29:48 +00:00
|
|
|
mode = ps3fb_default_mode(val);
|
2007-02-12 08:55:23 +00:00
|
|
|
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;
|
2007-10-16 08:29:48 +00:00
|
|
|
par->new_mode_id = val;
|
2007-02-12 08:55:23 +00:00
|
|
|
retval = fb_set_var(info, &var);
|
|
|
|
info->flags &= ~FBINFO_MISC_USEREVENT;
|
|
|
|
release_console_sem();
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
case PS3FB_IOCTL_GETMODE:
|
|
|
|
val = ps3av_get_mode();
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_dbg(info->device, "PS3FB_IOCTL_GETMODE:%x\n", val);
|
2007-02-12 08:55:23 +00:00
|
|
|
if (!copy_to_user(argp, &val, sizeof(val)))
|
|
|
|
retval = 0;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case PS3FB_IOCTL_SCREENINFO:
|
|
|
|
{
|
2007-10-16 08:29:48 +00:00
|
|
|
struct ps3fb_par *par = info->par;
|
2007-02-12 08:55:23 +00:00
|
|
|
struct ps3fb_ioctl_res res;
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_dbg(info->device, "PS3FB_IOCTL_SCREENINFO:\n");
|
2007-10-16 08:29:51 +00:00
|
|
|
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;
|
2007-10-16 08:29:48 +00:00
|
|
|
res.num_frames = par->num_frames;
|
2007-02-12 08:55:23 +00:00
|
|
|
if (!copy_to_user(argp, &res, sizeof(res)))
|
|
|
|
retval = 0;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
case PS3FB_IOCTL_ON:
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_dbg(info->device, "PS3FB_IOCTL_ON:\n");
|
2007-02-12 08:55:23 +00:00
|
|
|
atomic_inc(&ps3fb.ext_flip);
|
|
|
|
retval = 0;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case PS3FB_IOCTL_OFF:
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_dbg(info->device, "PS3FB_IOCTL_OFF:\n");
|
2007-05-02 12:48:32 +00:00
|
|
|
atomic_dec_if_positive(&ps3fb.ext_flip);
|
2007-02-12 08:55:23 +00:00
|
|
|
retval = 0;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case PS3FB_IOCTL_FSEL:
|
|
|
|
if (copy_from_user(&val, argp, sizeof(val)))
|
|
|
|
break;
|
|
|
|
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_dbg(info->device, "PS3FB_IOCTL_FSEL:%d\n", val);
|
ps3fb: fix deadlock on kexec()
Since the introduction of the acquire_console_sem calls in
0333d83509c7d8496c8965b5ba9bc0c98e83c259, kexecing can cause the
kernel to deadlock:
ps3fb_shutdown()
-> unregister_framebuffer()
-> fb_notifier_call_chain(FB_EVENT_FB_UNBIND)
-> fbcon_fb_unbind()
-> unbind_con_driver()
-> bind_con_driver()
[ acquires console_sem ]
-> fbcon_deinit()
-> fbops->fb_release(newinfo, 0)
-> ps3fb_release()
-> ps3fb_sync()
[ acquires console_sem ]
This change avoids the deadlock by moving the acquire_console_sem()
out of ps3fb_sync(), and puts it into the two other callsites, leaving
ps3fb_release() to call ps3fb_sync() without the console semaphore.
[Geert]
- Corrected call sequence above
- ps3fb_release() may be called with and without console_sem held. This is an
inconsistency that should be fixed at the fb level, but for now, try to
acquire console_sem in ps3fb_release().
I think it's safer to let ps3fb_release() try to acquire console_sem and
not refresh the screen if it fails, than to call ps3fb_sync() without
holding console_sem, as ps3fb_par may be modified at the same time, causing
crashes or lockups.
Besides, ps3fb_release() only calls ps3fb_sync() to refresh the screen
when display flipping is disabled, which is an uncommon case (except during
shutdown/kexec).
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-01-11 13:28:04 +00:00
|
|
|
acquire_console_sem();
|
2007-10-16 08:29:45 +00:00
|
|
|
retval = ps3fb_sync(info, val);
|
ps3fb: fix deadlock on kexec()
Since the introduction of the acquire_console_sem calls in
0333d83509c7d8496c8965b5ba9bc0c98e83c259, kexecing can cause the
kernel to deadlock:
ps3fb_shutdown()
-> unregister_framebuffer()
-> fb_notifier_call_chain(FB_EVENT_FB_UNBIND)
-> fbcon_fb_unbind()
-> unbind_con_driver()
-> bind_con_driver()
[ acquires console_sem ]
-> fbcon_deinit()
-> fbops->fb_release(newinfo, 0)
-> ps3fb_release()
-> ps3fb_sync()
[ acquires console_sem ]
This change avoids the deadlock by moving the acquire_console_sem()
out of ps3fb_sync(), and puts it into the two other callsites, leaving
ps3fb_release() to call ps3fb_sync() without the console semaphore.
[Geert]
- Corrected call sequence above
- ps3fb_release() may be called with and without console_sem held. This is an
inconsistency that should be fixed at the fb level, but for now, try to
acquire console_sem in ps3fb_release().
I think it's safer to let ps3fb_release() try to acquire console_sem and
not refresh the screen if it fails, than to call ps3fb_sync() without
holding console_sem, as ps3fb_par may be modified at the same time, causing
crashes or lockups.
Besides, ps3fb_release() only calls ps3fb_sync() to refresh the screen
when display flipping is disabled, which is an uncommon case (except during
shutdown/kexec).
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-01-11 13:28:04 +00:00
|
|
|
release_console_sem();
|
2007-02-12 08:55:23 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
retval = -ENOIOCTLCMD;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int ps3fbd(void *arg)
|
|
|
|
{
|
2007-10-16 08:29:45 +00:00
|
|
|
struct fb_info *info = arg;
|
|
|
|
|
2007-07-17 11:03:35 +00:00
|
|
|
set_freezable();
|
2007-05-02 12:48:31 +00:00
|
|
|
while (!kthread_should_stop()) {
|
|
|
|
try_to_freeze();
|
|
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
|
|
|
if (ps3fb.is_kicked) {
|
|
|
|
ps3fb.is_kicked = 0;
|
ps3fb: fix deadlock on kexec()
Since the introduction of the acquire_console_sem calls in
0333d83509c7d8496c8965b5ba9bc0c98e83c259, kexecing can cause the
kernel to deadlock:
ps3fb_shutdown()
-> unregister_framebuffer()
-> fb_notifier_call_chain(FB_EVENT_FB_UNBIND)
-> fbcon_fb_unbind()
-> unbind_con_driver()
-> bind_con_driver()
[ acquires console_sem ]
-> fbcon_deinit()
-> fbops->fb_release(newinfo, 0)
-> ps3fb_release()
-> ps3fb_sync()
[ acquires console_sem ]
This change avoids the deadlock by moving the acquire_console_sem()
out of ps3fb_sync(), and puts it into the two other callsites, leaving
ps3fb_release() to call ps3fb_sync() without the console semaphore.
[Geert]
- Corrected call sequence above
- ps3fb_release() may be called with and without console_sem held. This is an
inconsistency that should be fixed at the fb level, but for now, try to
acquire console_sem in ps3fb_release().
I think it's safer to let ps3fb_release() try to acquire console_sem and
not refresh the screen if it fails, than to call ps3fb_sync() without
holding console_sem, as ps3fb_par may be modified at the same time, causing
crashes or lockups.
Besides, ps3fb_release() only calls ps3fb_sync() to refresh the screen
when display flipping is disabled, which is an uncommon case (except during
shutdown/kexec).
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-01-11 13:28:04 +00:00
|
|
|
acquire_console_sem();
|
2007-10-16 08:29:45 +00:00
|
|
|
ps3fb_sync(info, 0); /* single buffer */
|
ps3fb: fix deadlock on kexec()
Since the introduction of the acquire_console_sem calls in
0333d83509c7d8496c8965b5ba9bc0c98e83c259, kexecing can cause the
kernel to deadlock:
ps3fb_shutdown()
-> unregister_framebuffer()
-> fb_notifier_call_chain(FB_EVENT_FB_UNBIND)
-> fbcon_fb_unbind()
-> unbind_con_driver()
-> bind_con_driver()
[ acquires console_sem ]
-> fbcon_deinit()
-> fbops->fb_release(newinfo, 0)
-> ps3fb_release()
-> ps3fb_sync()
[ acquires console_sem ]
This change avoids the deadlock by moving the acquire_console_sem()
out of ps3fb_sync(), and puts it into the two other callsites, leaving
ps3fb_release() to call ps3fb_sync() without the console semaphore.
[Geert]
- Corrected call sequence above
- ps3fb_release() may be called with and without console_sem held. This is an
inconsistency that should be fixed at the fb level, but for now, try to
acquire console_sem in ps3fb_release().
I think it's safer to let ps3fb_release() try to acquire console_sem and
not refresh the screen if it fails, than to call ps3fb_sync() without
holding console_sem, as ps3fb_par may be modified at the same time, causing
crashes or lockups.
Besides, ps3fb_release() only calls ps3fb_sync() to refresh the screen
when display flipping is disabled, which is an uncommon case (except during
shutdown/kexec).
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-01-11 13:28:04 +00:00
|
|
|
release_console_sem();
|
2007-05-02 12:48:31 +00:00
|
|
|
}
|
|
|
|
schedule();
|
2007-02-12 08:55:23 +00:00
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static irqreturn_t ps3fb_vsync_interrupt(int irq, void *ptr)
|
|
|
|
{
|
2007-10-16 08:29:45 +00:00
|
|
|
struct device *dev = ptr;
|
2007-02-12 08:55:23 +00:00
|
|
|
u64 v1;
|
|
|
|
int status;
|
|
|
|
struct display_head *head = &ps3fb.dinfo->display_head[1];
|
|
|
|
|
|
|
|
status = lv1_gpu_context_intr(ps3fb.context_handle, &v1);
|
|
|
|
if (status) {
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_err(dev, "%s: lv1_gpu_context_intr failed: %d\n", __func__,
|
|
|
|
status);
|
2007-02-12 08:55:23 +00:00
|
|
|
return IRQ_NONE;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (v1 & (1 << GPU_INTR_STATUS_VSYNC_1)) {
|
|
|
|
/* VSYNC */
|
|
|
|
ps3fb.vblank_count = head->vblank_count;
|
2007-05-02 12:48:31 +00:00
|
|
|
if (ps3fb.task && !ps3fb.is_blanked &&
|
|
|
|
!atomic_read(&ps3fb.ext_flip)) {
|
|
|
|
ps3fb.is_kicked = 1;
|
|
|
|
wake_up_process(ps3fb.task);
|
|
|
|
}
|
2007-02-12 08:55:23 +00:00
|
|
|
wake_up_interruptible(&ps3fb.wait_vsync);
|
|
|
|
}
|
|
|
|
|
|
|
|
return IRQ_HANDLED;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2007-06-15 22:05:38 +00:00
|
|
|
static int ps3fb_vsync_settings(struct gpu_driver_info *dinfo,
|
2007-10-16 08:29:45 +00:00
|
|
|
struct device *dev)
|
2007-02-12 08:55:23 +00:00
|
|
|
{
|
|
|
|
int error;
|
|
|
|
|
2007-10-16 08:29:45 +00:00
|
|
|
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",
|
2007-02-12 08:55:23 +00:00
|
|
|
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) {
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_err(dev, "%s: version_driver err:%x\n", __func__,
|
|
|
|
dinfo->version_driver);
|
2007-02-12 08:55:23 +00:00
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
2007-04-30 21:01:01 +00:00
|
|
|
error = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY, dinfo->irq.irq_outlet,
|
|
|
|
&ps3fb.irq_no);
|
2007-02-12 08:55:23 +00:00
|
|
|
if (error) {
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_err(dev, "%s: ps3_alloc_irq failed %d\n", __func__, error);
|
2007-02-12 08:55:23 +00:00
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
|
|
|
error = request_irq(ps3fb.irq_no, ps3fb_vsync_interrupt, IRQF_DISABLED,
|
2007-06-15 22:05:38 +00:00
|
|
|
DEVICE_NAME, dev);
|
2007-02-12 08:55:23 +00:00
|
|
|
if (error) {
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_err(dev, "%s: request_irq failed %d\n", __func__, error);
|
2007-04-30 21:01:01 +00:00
|
|
|
ps3_irq_plug_destroy(ps3fb.irq_no);
|
2007-02-12 08:55:23 +00:00
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
|
|
|
dinfo->irq.mask = (1 << GPU_INTR_STATUS_VSYNC_1) |
|
|
|
|
(1 << GPU_INTR_STATUS_FLIP_1);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2007-10-16 08:29:45 +00:00
|
|
|
static int ps3fb_xdr_settings(u64 xdr_lpar, struct device *dev)
|
2007-02-12 08:55:23 +00:00
|
|
|
{
|
|
|
|
int status;
|
|
|
|
|
|
|
|
status = lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF,
|
|
|
|
xdr_lpar, ps3fb_videomemory.size, 0);
|
|
|
|
if (status) {
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_err(dev, "%s: lv1_gpu_context_iomap failed: %d\n",
|
|
|
|
__func__, status);
|
2007-02-12 08:55:23 +00:00
|
|
|
return -ENXIO;
|
|
|
|
}
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_dbg(dev,
|
|
|
|
"video:%p xdr_ea:%p ioif:%lx lpar:%lx phys:%lx size:%lx\n",
|
2007-02-12 08:55:23 +00:00
|
|
|
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,
|
2007-12-19 10:16:41 +00:00
|
|
|
xdr_lpar, GPU_CMD_BUF_SIZE,
|
|
|
|
GPU_IOIF, 0);
|
2007-02-12 08:55:23 +00:00
|
|
|
if (status) {
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_err(dev,
|
|
|
|
"%s: lv1_gpu_context_attribute FB_SETUP failed: %d\n",
|
|
|
|
__func__, status);
|
2007-02-12 08:55:23 +00:00
|
|
|
return -ENXIO;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct fb_ops ps3fb_ops = {
|
|
|
|
.fb_open = ps3fb_open,
|
|
|
|
.fb_release = ps3fb_release,
|
2007-05-23 20:57:50 +00:00
|
|
|
.fb_read = fb_sys_read,
|
|
|
|
.fb_write = fb_sys_write,
|
2007-02-12 08:55:23 +00:00
|
|
|
.fb_check_var = ps3fb_check_var,
|
|
|
|
.fb_set_par = ps3fb_set_par,
|
|
|
|
.fb_setcolreg = ps3fb_setcolreg,
|
2007-10-16 08:29:50 +00:00
|
|
|
.fb_pan_display = ps3fb_pan_display,
|
2007-05-23 20:57:50 +00:00
|
|
|
.fb_fillrect = sys_fillrect,
|
|
|
|
.fb_copyarea = sys_copyarea,
|
|
|
|
.fb_imageblit = sys_imageblit,
|
2007-02-12 08:55:23 +00:00
|
|
|
.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 = {
|
2007-06-15 22:05:38 +00:00
|
|
|
.id = DEVICE_NAME,
|
2007-02-12 08:55:23 +00:00
|
|
|
.type = FB_TYPE_PACKED_PIXELS,
|
|
|
|
.visual = FB_VISUAL_TRUECOLOR,
|
|
|
|
.accel = FB_ACCEL_NONE,
|
|
|
|
};
|
|
|
|
|
2007-10-16 08:29:45 +00:00
|
|
|
static int ps3fb_set_sync(struct device *dev)
|
2007-06-15 22:05:38 +00:00
|
|
|
{
|
|
|
|
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) {
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_err(dev,
|
|
|
|
"%s: lv1_gpu_context_attribute DISPLAY_SYNC failed: "
|
|
|
|
"%d\n",
|
|
|
|
__func__, status);
|
2007-06-15 22:05:38 +00:00
|
|
|
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) {
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_err(dev,
|
|
|
|
"%s: lv1_gpu_context_attribute DISPLAY_SYNC failed: "
|
|
|
|
"%d\n",
|
|
|
|
__func__, status);
|
2007-06-15 22:05:38 +00:00
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int __devinit ps3fb_probe(struct ps3_system_bus_device *dev)
|
2007-02-12 08:55:23 +00:00
|
|
|
{
|
|
|
|
struct fb_info *info;
|
2007-10-16 08:29:48 +00:00
|
|
|
struct ps3fb_par *par;
|
2007-02-12 08:55:23 +00:00
|
|
|
int retval = -ENOMEM;
|
2007-06-15 22:05:38 +00:00
|
|
|
u32 xres, yres;
|
2007-02-12 08:55:23 +00:00
|
|
|
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;
|
2007-10-16 08:29:48 +00:00
|
|
|
int status, res_index;
|
2007-05-02 12:48:31 +00:00
|
|
|
struct task_struct *task;
|
2007-11-29 00:21:11 +00:00
|
|
|
unsigned long max_ps3fb_size;
|
2007-02-12 08:55:23 +00:00
|
|
|
|
2007-12-19 10:16:41 +00:00
|
|
|
if (ps3fb_videomemory.size < GPU_CMD_BUF_SIZE) {
|
|
|
|
dev_err(&dev->core, "%s: Not enough video memory\n", __func__);
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
2007-06-15 22:05:38 +00:00
|
|
|
status = ps3_open_hv_device(dev);
|
|
|
|
if (status) {
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_err(&dev->core, "%s: ps3_open_hv_device failed\n",
|
|
|
|
__func__);
|
2007-06-15 22:05:38 +00:00
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!ps3fb_mode)
|
|
|
|
ps3fb_mode = ps3av_get_mode();
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_dbg(&dev->core, "ps3av_mode:%d\n", ps3fb_mode);
|
2007-06-15 22:05:38 +00:00
|
|
|
|
|
|
|
if (ps3fb_mode > 0 &&
|
|
|
|
!ps3av_video_mode2res(ps3fb_mode, &xres, &yres)) {
|
2007-10-16 08:29:48 +00:00
|
|
|
res_index = ps3fb_get_res_table(xres, yres, ps3fb_mode);
|
|
|
|
dev_dbg(&dev->core, "res_index:%d\n", res_index);
|
2007-06-15 22:05:38 +00:00
|
|
|
} else
|
2007-10-16 08:29:48 +00:00
|
|
|
res_index = GPU_RES_INDEX;
|
2007-06-15 22:05:38 +00:00
|
|
|
|
|
|
|
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);
|
|
|
|
|
2007-10-16 08:29:45 +00:00
|
|
|
ps3fb_set_sync(&dev->core);
|
2007-06-15 22:05:38 +00:00
|
|
|
|
2007-11-29 00:21:11 +00:00
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
2007-02-12 08:55:23 +00:00
|
|
|
/* get gpu context handle */
|
2007-11-29 00:21:11 +00:00
|
|
|
status = lv1_gpu_memory_allocate(ps3fb_videomemory.size, 0, 0, 0, 0,
|
2007-02-12 08:55:23 +00:00
|
|
|
&ps3fb.memory_handle, &ddr_lpar);
|
|
|
|
if (status) {
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_err(&dev->core, "%s: lv1_gpu_memory_allocate failed: %d\n",
|
|
|
|
__func__, status);
|
2007-02-12 08:55:23 +00:00
|
|
|
goto err;
|
|
|
|
}
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_dbg(&dev->core, "ddr:lpar:0x%lx\n", ddr_lpar);
|
2007-02-12 08:55:23 +00:00
|
|
|
|
|
|
|
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) {
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_err(&dev->core,
|
|
|
|
"%s: lv1_gpu_context_attribute failed: %d\n", __func__,
|
|
|
|
status);
|
2007-02-12 08:55:23 +00:00
|
|
|
goto err_gpu_memory_free;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* vsync interrupt */
|
|
|
|
ps3fb.dinfo = ioremap(lpar_driver_info, 128 * 1024);
|
|
|
|
if (!ps3fb.dinfo) {
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_err(&dev->core, "%s: ioremap failed\n", __func__);
|
2007-02-12 08:55:23 +00:00
|
|
|
goto err_gpu_context_free;
|
|
|
|
}
|
|
|
|
|
2007-10-16 08:29:45 +00:00
|
|
|
retval = ps3fb_vsync_settings(ps3fb.dinfo, &dev->core);
|
2007-02-12 08:55:23 +00:00
|
|
|
if (retval)
|
|
|
|
goto err_iounmap_dinfo;
|
|
|
|
|
2007-10-16 08:29:48 +00:00
|
|
|
/* XDR frame buffer */
|
2007-02-12 08:55:23 +00:00
|
|
|
ps3fb.xdr_ea = ps3fb_videomemory.address;
|
|
|
|
xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb.xdr_ea));
|
2007-10-16 08:29:48 +00:00
|
|
|
|
|
|
|
/* Clear memory to prevent kernel info leakage into userspace */
|
|
|
|
memset(ps3fb.xdr_ea, 0, ps3fb_videomemory.size);
|
|
|
|
|
2007-12-19 10:16:41 +00:00
|
|
|
/*
|
|
|
|
* 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
|
|
|
|
*/
|
|
|
|
ps3fb.xdr_ea += GPU_FB_START;
|
|
|
|
ps3fb.xdr_size = ps3fb_videomemory.size - GPU_FB_START;
|
2007-10-16 08:29:48 +00:00
|
|
|
|
2007-10-16 08:29:45 +00:00
|
|
|
retval = ps3fb_xdr_settings(xdr_lpar, &dev->core);
|
2007-02-12 08:55:23 +00:00
|
|
|
if (retval)
|
|
|
|
goto err_free_irq;
|
|
|
|
|
2007-10-16 08:29:48 +00:00
|
|
|
info = framebuffer_alloc(sizeof(struct ps3fb_par), &dev->core);
|
2007-02-12 08:55:23 +00:00
|
|
|
if (!info)
|
|
|
|
goto err_free_irq;
|
|
|
|
|
2007-10-16 08:29:48 +00:00
|
|
|
par = info->par;
|
|
|
|
par->mode_id = ~ps3fb_mode; /* != ps3fb_mode, to trigger change */
|
|
|
|
par->new_mode_id = ps3fb_mode;
|
|
|
|
par->res_index = res_index;
|
|
|
|
par->num_frames = 1;
|
|
|
|
|
2007-10-16 08:29:49 +00:00
|
|
|
info->screen_base = (char __iomem *)ps3fb.xdr_ea;
|
2007-02-12 08:55:23 +00:00
|
|
|
info->fbops = &ps3fb_ops;
|
|
|
|
|
|
|
|
info->fix = ps3fb_fix;
|
2007-10-16 08:29:49 +00:00
|
|
|
info->fix.smem_start = virt_to_abs(ps3fb.xdr_ea);
|
|
|
|
info->fix.smem_len = ps3fb.xdr_size;
|
2007-10-16 08:29:48 +00:00
|
|
|
info->pseudo_palette = par->pseudo_palette;
|
2007-10-16 08:29:50 +00:00
|
|
|
info->flags = FBINFO_DEFAULT | FBINFO_READS_FAST |
|
|
|
|
FBINFO_HWACCEL_XPAN | FBINFO_HWACCEL_YPAN;
|
2007-02-12 08:55:23 +00:00
|
|
|
|
|
|
|
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,
|
2007-10-16 08:29:48 +00:00
|
|
|
ARRAY_SIZE(ps3fb_modedb),
|
|
|
|
ps3fb_default_mode(par->new_mode_id), 32)) {
|
2007-02-12 08:55:23 +00:00
|
|
|
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;
|
|
|
|
|
2007-06-15 22:05:38 +00:00
|
|
|
dev->core.driver_data = info;
|
2007-02-12 08:55:23 +00:00
|
|
|
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_info(info->device, "%s %s, using %lu KiB of video memory\n",
|
|
|
|
dev_driver_string(info->dev), info->dev->bus_id,
|
2007-10-16 08:29:48 +00:00
|
|
|
ps3fb.xdr_size >> 10);
|
2007-02-12 08:55:23 +00:00
|
|
|
|
2007-06-15 22:05:38 +00:00
|
|
|
task = kthread_run(ps3fbd, info, DEVICE_NAME);
|
2007-05-02 12:48:31 +00:00
|
|
|
if (IS_ERR(task)) {
|
|
|
|
retval = PTR_ERR(task);
|
|
|
|
goto err_unregister_framebuffer;
|
|
|
|
}
|
|
|
|
|
|
|
|
ps3fb.task = task;
|
2007-06-15 22:05:38 +00:00
|
|
|
ps3av_register_flip_ctl(ps3fb_flip_ctl, &ps3fb);
|
2007-05-02 12:48:31 +00:00
|
|
|
|
2007-02-12 08:55:23 +00:00
|
|
|
return 0;
|
|
|
|
|
2007-05-02 12:48:31 +00:00
|
|
|
err_unregister_framebuffer:
|
|
|
|
unregister_framebuffer(info);
|
2007-02-12 08:55:23 +00:00
|
|
|
err_fb_dealloc:
|
|
|
|
fb_dealloc_cmap(&info->cmap);
|
|
|
|
err_framebuffer_release:
|
|
|
|
framebuffer_release(info);
|
|
|
|
err_free_irq:
|
2007-12-19 10:17:31 +00:00
|
|
|
free_irq(ps3fb.irq_no, &dev->core);
|
2007-04-30 21:01:01 +00:00
|
|
|
ps3_irq_plug_destroy(ps3fb.irq_no);
|
2007-02-12 08:55:23 +00:00
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
2007-06-15 22:05:38 +00:00
|
|
|
static int ps3fb_shutdown(struct ps3_system_bus_device *dev)
|
2007-02-12 08:55:23 +00:00
|
|
|
{
|
2007-06-15 22:05:38 +00:00
|
|
|
int status;
|
|
|
|
struct fb_info *info = dev->core.driver_data;
|
|
|
|
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);
|
2007-06-15 22:05:38 +00:00
|
|
|
|
|
|
|
ps3fb_flip_ctl(0, &ps3fb); /* flip off */
|
2007-02-12 08:55:23 +00:00
|
|
|
ps3fb.dinfo->irq.mask = 0;
|
|
|
|
|
2007-06-15 22:05:38 +00:00
|
|
|
ps3av_register_flip_ctl(NULL, NULL);
|
2007-05-02 12:48:31 +00:00
|
|
|
if (ps3fb.task) {
|
|
|
|
struct task_struct *task = ps3fb.task;
|
|
|
|
ps3fb.task = NULL;
|
|
|
|
kthread_stop(task);
|
|
|
|
}
|
2007-02-12 08:55:23 +00:00
|
|
|
if (ps3fb.irq_no) {
|
2007-12-19 10:17:31 +00:00
|
|
|
free_irq(ps3fb.irq_no, &dev->core);
|
2007-04-30 21:01:01 +00:00
|
|
|
ps3_irq_plug_destroy(ps3fb.irq_no);
|
2007-02-12 08:55:23 +00:00
|
|
|
}
|
2008-01-11 13:27:10 +00:00
|
|
|
if (info) {
|
|
|
|
unregister_framebuffer(info);
|
|
|
|
fb_dealloc_cmap(&info->cmap);
|
|
|
|
framebuffer_release(info);
|
|
|
|
info = dev->core.driver_data = NULL;
|
|
|
|
}
|
2007-02-12 08:55:23 +00:00
|
|
|
iounmap((u8 __iomem *)ps3fb.dinfo);
|
|
|
|
|
|
|
|
status = lv1_gpu_context_free(ps3fb.context_handle);
|
|
|
|
if (status)
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_dbg(&dev->core, "lv1_gpu_context_free failed: %d\n",
|
|
|
|
status);
|
2007-02-12 08:55:23 +00:00
|
|
|
|
|
|
|
status = lv1_gpu_memory_free(ps3fb.memory_handle);
|
|
|
|
if (status)
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_dbg(&dev->core, "lv1_gpu_memory_free failed: %d\n",
|
|
|
|
status);
|
2007-02-12 08:55:23 +00:00
|
|
|
|
2007-06-15 22:05:38 +00:00
|
|
|
ps3_close_hv_device(dev);
|
2007-10-16 08:29:45 +00:00
|
|
|
dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);
|
2007-02-12 08:55:23 +00:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2007-06-15 22:05:38 +00:00
|
|
|
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,
|
2007-02-12 08:55:23 +00:00
|
|
|
};
|
|
|
|
|
2007-06-15 22:05:38 +00:00
|
|
|
static int __init ps3fb_setup(void)
|
2007-02-12 08:55:23 +00:00
|
|
|
{
|
2007-06-15 22:05:38 +00:00
|
|
|
char *options;
|
2007-02-12 08:55:23 +00:00
|
|
|
|
2007-06-15 22:05:38 +00:00
|
|
|
#ifdef MODULE
|
2007-02-12 08:55:23 +00:00
|
|
|
return 0;
|
|
|
|
#endif
|
|
|
|
|
2007-06-15 22:05:38 +00:00
|
|
|
if (fb_get_options(DEVICE_NAME, &options))
|
|
|
|
return -ENXIO;
|
2007-02-12 08:55:23 +00:00
|
|
|
|
2007-06-15 22:05:38 +00:00
|
|
|
if (!options || !*options)
|
|
|
|
return 0;
|
2007-02-12 08:55:23 +00:00
|
|
|
|
2007-06-15 22:05:38 +00:00
|
|
|
while (1) {
|
|
|
|
char *this_opt = strsep(&options, ",");
|
2007-02-12 08:55:23 +00:00
|
|
|
|
2007-06-15 22:05:38 +00:00
|
|
|
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;
|
2007-02-12 08:55:23 +00:00
|
|
|
}
|
2007-06-15 22:05:38 +00:00
|
|
|
return 0;
|
|
|
|
}
|
2007-02-12 08:55:23 +00:00
|
|
|
|
2007-06-15 22:05:38 +00:00
|
|
|
static int __init ps3fb_init(void)
|
|
|
|
{
|
|
|
|
if (!ps3fb_videomemory.address || ps3fb_setup())
|
|
|
|
return -ENXIO;
|
2007-02-12 08:55:23 +00:00
|
|
|
|
2007-06-15 22:05:38 +00:00
|
|
|
return ps3_system_bus_driver_register(&ps3fb_driver);
|
2007-02-12 08:55:23 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void __exit ps3fb_exit(void)
|
|
|
|
{
|
2007-10-16 08:29:45 +00:00
|
|
|
pr_debug(" -> %s:%d\n", __func__, __LINE__);
|
2007-06-15 22:05:38 +00:00
|
|
|
ps3_system_bus_driver_unregister(&ps3fb_driver);
|
2007-10-16 08:29:45 +00:00
|
|
|
pr_debug(" <- %s:%d\n", __func__, __LINE__);
|
2007-02-12 08:55:23 +00:00
|
|
|
}
|
|
|
|
|
2007-06-15 22:05:38 +00:00
|
|
|
module_init(ps3fb_init);
|
2007-02-12 08:55:23 +00:00
|
|
|
module_exit(ps3fb_exit);
|
|
|
|
|
|
|
|
MODULE_LICENSE("GPL");
|
2007-06-15 22:05:38 +00:00
|
|
|
MODULE_DESCRIPTION("PS3 GPU Frame Buffer Driver");
|
|
|
|
MODULE_AUTHOR("Sony Computer Entertainment Inc.");
|
|
|
|
MODULE_ALIAS(PS3_MODULE_ALIAS_GRAPHICS);
|