Merge branch 'linux-2.6'

1 files changed, 73 insertions, 43 deletions

diff --git a/drivers/video/ps3fb.c b/drivers/video/ps3fb.c
index a9ca4986645c..9756a728b74f 100644
--- a/drivers/video/ps3fb.c
+++ b/drivers/video/ps3fb.c
@@ -32,6 +32,8 @@
 #include <linux/ioctl.h>
 #include <linux/notifier.h>
 #include <linux/reboot.h>
+#include <linux/kthread.h>
+#include <linux/freezer.h>
 
 #include <asm/uaccess.h>
 #include <linux/fb.h>
@@ -45,7 +47,7 @@
 #include <asm/ps3.h>
 
 #ifdef PS3FB_DEBUG
-#define DPRINTK(fmt, args...) printk("%s: " fmt, __FUNCTION__ , ##args)
+#define DPRINTK(fmt, args...) printk("%s: " fmt, __func__ , ##args)
 #else
 #define DPRINTK(fmt, args...)
 #endif
@@ -129,7 +131,6 @@ struct ps3fb_priv {
         u64 context_handle, memory_handle;
         void *xdr_ea;
         struct gpu_driver_info *dinfo;
-        struct semaphore sem;
         u32 res_index;
 
         u64 vblank_count;       /* frame count */
@@ -139,6 +140,8 @@ struct ps3fb_priv {
         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;
 
@@ -294,10 +297,10 @@ static const struct fb_videomode ps3fb_modedb[] = {
 #define VP_OFF(i)       (WIDTH(i) * Y_OFF(i) * BPP + X_OFF(i) * BPP)
 #define FB_OFF(i)       (GPU_OFFSET - VP_OFF(i) % GPU_OFFSET)
 
-static int ps3fb_mode = 0;
+static int ps3fb_mode;
 module_param(ps3fb_mode, bool, 0);
 
-static char *mode_option __initdata = NULL;
+static char *mode_option __initdata;
 
 
 static int ps3fb_get_res_table(u32 xres, u32 yres)
@@ -393,7 +396,7 @@ static int ps3fb_sync(u32 frame)
 
         if (frame > ps3fb.num_frames - 1) {
                 printk(KERN_WARNING "%s: invalid frame number (%u)\n",
-                       __FUNCTION__, frame);
+                       __func__, frame);
                 return -EINVAL;
         }
         offset = xres * yres * BPP * frame;
@@ -406,23 +409,26 @@ static int ps3fb_sync(u32 frame)
                                            (xres << 16) | yres,
                                            xres * BPP); /* line_length */
         if (status)
-                printk(KERN_ERR "%s: lv1_gpu_context_attribute FB_BLIT failed: %d\n",
-                       __FUNCTION__, status);
+                printk(KERN_ERR
+                       "%s: lv1_gpu_context_attribute FB_BLIT failed: %d\n",
+                       __func__, status);
 #ifdef HEAD_A
         status = lv1_gpu_context_attribute(ps3fb.context_handle,
                                            L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
                                            0, offset, 0, 0);
         if (status)
-                printk(KERN_ERR "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
-                       __FUNCTION__, status);
+                printk(KERN_ERR
+                       "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
+                       __func__, status);
 #endif
 #ifdef HEAD_B
         status = lv1_gpu_context_attribute(ps3fb.context_handle,
                                            L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
                                            1, offset, 0, 0);
         if (status)
-                printk(KERN_ERR "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
-                       __FUNCTION__, status);
+                printk(KERN_ERR
+                       "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
+                       __func__, status);
 #endif
         return 0;
 }
@@ -631,7 +637,7 @@ static int ps3fb_blank(int blank, struct fb_info *info)
 {
         int retval;
 
-        DPRINTK("%s: blank:%d\n", __FUNCTION__, blank);
+        DPRINTK("%s: blank:%d\n", __func__, blank);
         switch (blank) {
         case FB_BLANK_POWERDOWN:
         case FB_BLANK_HSYNC_SUSPEND:
@@ -677,13 +683,10 @@ EXPORT_SYMBOL_GPL(ps3fb_wait_for_vsync);
 
 void ps3fb_flip_ctl(int on)
 {
-        if (on) {
-                if (atomic_read(&ps3fb.ext_flip) > 0) {
-                        atomic_dec(&ps3fb.ext_flip);
-                }
-        } else {
+        if (on)
+                atomic_dec_if_positive(&ps3fb.ext_flip);
+        else
                 atomic_inc(&ps3fb.ext_flip);
-        }
 }
 
 EXPORT_SYMBOL_GPL(ps3fb_flip_ctl);
@@ -732,6 +735,11 @@ static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd,
                         if (copy_from_user(&val, argp, sizeof(val)))
                                 break;
 
+                        if (!(val & PS3AV_MODE_MASK)) {
+                                u32 id = ps3av_get_auto_mode(0);
+                                if (id > 0)
+                                        val = (val & ~PS3AV_MODE_MASK) | id;
+                        }
                         DPRINTK("PS3FB_IOCTL_SETMODE:%x\n", val);
                         retval = -EINVAL;
                         old_mode = ps3fb_mode;
@@ -783,8 +791,7 @@ static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd,
 
         case PS3FB_IOCTL_OFF:
                 DPRINTK("PS3FB_IOCTL_OFF:\n");
-                if (atomic_read(&ps3fb.ext_flip) > 0)
-                        atomic_dec(&ps3fb.ext_flip);
+                atomic_dec_if_positive(&ps3fb.ext_flip);
                 retval = 0;
                 break;
 
@@ -805,11 +812,14 @@ static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd,
 
 static int ps3fbd(void *arg)
 {
-        daemonize("ps3fbd");
-        for (;;) {
-                down(&ps3fb.sem);
-                if (atomic_read(&ps3fb.ext_flip) == 0)
+        while (!kthread_should_stop()) {
+                try_to_freeze();
+                set_current_state(TASK_INTERRUPTIBLE);
+                if (ps3fb.is_kicked) {
+                        ps3fb.is_kicked = 0;
                         ps3fb_sync(0);  /* single buffer */
+                }
+                schedule();
         }
         return 0;
 }
@@ -823,15 +833,18 @@ static irqreturn_t ps3fb_vsync_interrupt(int irq, void *ptr)
         status = lv1_gpu_context_intr(ps3fb.context_handle, &v1);
         if (status) {
                 printk(KERN_ERR "%s: lv1_gpu_context_intr failed: %d\n",
-                       __FUNCTION__, status);
+                       __func__, status);
                 return IRQ_NONE;
         }
 
         if (v1 & (1 << GPU_INTR_STATUS_VSYNC_1)) {
                 /* VSYNC */
                 ps3fb.vblank_count = head->vblank_count;
-                if (!ps3fb.is_blanked)
-                        up(&ps3fb.sem);
+                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);
         }
 
@@ -879,7 +892,7 @@ static int ps3fb_vsync_settings(struct gpu_driver_info *dinfo, void *dev)
                 dinfo->nvcore_frequency/1000000, dinfo->memory_frequency/1000000);
 
         if (dinfo->version_driver != GPU_DRIVER_INFO_VERSION) {
-                printk(KERN_ERR "%s: version_driver err:%x\n", __FUNCTION__,
+                printk(KERN_ERR "%s: version_driver err:%x\n", __func__,
                        dinfo->version_driver);
                 return -EINVAL;
         }
@@ -888,7 +901,7 @@ static int ps3fb_vsync_settings(struct gpu_driver_info *dinfo, void *dev)
         error = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY, dinfo->irq.irq_outlet,
                                    &ps3fb.irq_no);
         if (error) {
-                printk(KERN_ERR "%s: ps3_alloc_irq failed %d\n", __FUNCTION__,
+                printk(KERN_ERR "%s: ps3_alloc_irq failed %d\n", __func__,
                        error);
                 return error;
         }
@@ -896,7 +909,7 @@ static int ps3fb_vsync_settings(struct gpu_driver_info *dinfo, void *dev)
         error = request_irq(ps3fb.irq_no, ps3fb_vsync_interrupt, IRQF_DISABLED,
                             "ps3fb vsync", ps3fb.dev);
         if (error) {
-                printk(KERN_ERR "%s: request_irq failed %d\n", __FUNCTION__,
+                printk(KERN_ERR "%s: request_irq failed %d\n", __func__,
                        error);
                 ps3_irq_plug_destroy(ps3fb.irq_no);
                 return error;
@@ -915,7 +928,7 @@ static int ps3fb_xdr_settings(u64 xdr_lpar)
                                        xdr_lpar, ps3fb_videomemory.size, 0);
         if (status) {
                 printk(KERN_ERR "%s: lv1_gpu_context_iomap failed: %d\n",
-                       __FUNCTION__, status);
+                       __func__, status);
                 return -ENXIO;
         }
         DPRINTK("video:%p xdr_ea:%p ioif:%lx lpar:%lx phys:%lx size:%lx\n",
@@ -927,8 +940,9 @@ static int ps3fb_xdr_settings(u64 xdr_lpar)
                                            xdr_lpar, ps3fb_videomemory.size,
                                            GPU_IOIF, 0);
         if (status) {
-                printk(KERN_ERR "%s: lv1_gpu_context_attribute FB_SETUP failed: %d\n",
-                       __FUNCTION__, status);
+                printk(KERN_ERR
+                       "%s: lv1_gpu_context_attribute FB_SETUP failed: %d\n",
+                       __func__, status);
                 return -ENXIO;
         }
         return 0;
@@ -968,13 +982,14 @@ static int __init ps3fb_probe(struct platform_device *dev)
         u64 xdr_lpar;
         int status;
         unsigned long offset;
+        struct task_struct *task;
 
         /* get gpu context handle */
         status = lv1_gpu_memory_allocate(DDR_SIZE, 0, 0, 0, 0,
                                          &ps3fb.memory_handle, &ddr_lpar);
         if (status) {
                 printk(KERN_ERR "%s: lv1_gpu_memory_allocate failed: %d\n",
-                       __FUNCTION__, status);
+                       __func__, status);
                 goto err;
         }
         DPRINTK("ddr:lpar:0x%lx\n", ddr_lpar);
@@ -985,14 +1000,14 @@ static int __init ps3fb_probe(struct platform_device *dev)
                                           &lpar_reports, &lpar_reports_size);
         if (status) {
                 printk(KERN_ERR "%s: lv1_gpu_context_attribute failed: %d\n",
-                       __FUNCTION__, status);
+                       __func__, status);
                 goto err_gpu_memory_free;
         }
 
         /* vsync interrupt */
         ps3fb.dinfo = ioremap(lpar_driver_info, 128 * 1024);
         if (!ps3fb.dinfo) {
-                printk(KERN_ERR "%s: ioremap failed\n", __FUNCTION__);
+                printk(KERN_ERR "%s: ioremap failed\n", __func__);
                 goto err_gpu_context_free;
         }
 
@@ -1050,9 +1065,18 @@ static int __init ps3fb_probe(struct platform_device *dev)
                "fb%d: PS3 frame buffer device, using %ld KiB of video memory\n",
                info->node, ps3fb_videomemory.size >> 10);
 
-        kernel_thread(ps3fbd, info, CLONE_KERNEL);
+        task = kthread_run(ps3fbd, info, "ps3fbd");
+        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:
@@ -1083,6 +1107,11 @@ void ps3fb_cleanup(void)
 {
         int status;
 
+        if (ps3fb.task) {
+                struct task_struct *task = ps3fb.task;
+                ps3fb.task = NULL;
+                kthread_stop(task);
+        }
         if (ps3fb.irq_no) {
                 free_irq(ps3fb.irq_no, ps3fb.dev);
                 ps3_irq_plug_destroy(ps3fb.irq_no);
@@ -1137,8 +1166,9 @@ int ps3fb_set_sync(void)
                                            L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC,
                                            0, L1GPU_DISPLAY_SYNC_VSYNC, 0, 0);
         if (status) {
-                printk(KERN_ERR "%s: lv1_gpu_context_attribute DISPLAY_SYNC failed: %d\n",
-                       __FUNCTION__, status);
+                printk(KERN_ERR
+                       "%s: lv1_gpu_context_attribute DISPLAY_SYNC failed: %d\n",
+                       __func__, status);
                 return -1;
         }
 #endif
@@ -1148,8 +1178,9 @@ int ps3fb_set_sync(void)
                                            1, L1GPU_DISPLAY_SYNC_VSYNC, 0, 0);
 
         if (status) {
-                printk(KERN_ERR "%s: lv1_gpu_context_attribute DISPLAY_MODE failed: %d\n",
-                       __FUNCTION__, status);
+                printk(KERN_ERR
+                       "%s: lv1_gpu_context_attribute DISPLAY_MODE failed: %d\n",
+                       __func__, status);
                 return -1;
         }
 #endif
@@ -1174,7 +1205,7 @@ static int __init ps3fb_init(void)
 
         error = ps3av_dev_open();
         if (error) {
-                printk(KERN_ERR "%s: ps3av_dev_open failed\n", __FUNCTION__);
+                printk(KERN_ERR "%s: ps3av_dev_open failed\n", __func__);
                 goto err;
         }
 
@@ -1195,7 +1226,6 @@ static int __init ps3fb_init(void)
 
         atomic_set(&ps3fb.f_count, -1); /* fbcon opens ps3fb */
         atomic_set(&ps3fb.ext_flip, 0); /* for flip with vsync */
-        init_MUTEX(&ps3fb.sem);
         init_waitqueue_head(&ps3fb.wait_vsync);
         ps3fb.num_frames = 1;