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;