unicore32 framebuffer fix: get videomemory by __get_free_pages() and make it floatable

1. get videomemory by __get_free_pages() in fb-puv3.c
2. remove resource reservation for old fixed UNIGFX_MMAP & UVC_MMAP space
3. remove unused macros: PKUNTIY_UNIGFX_MMAP_BASE, PKUNITY_UNIGFX_MMAP_SIZE,
	PKUNITY_UVC_MMAP_BASE, PKUNITY_UVC_MMAP_SIZE and KUSER_UNIGFX_BASE
4. remove unused header linux/vmalloc.h in fb-puv3.h

Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Acked-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 17 insertions, 11 deletions

diff --git a/drivers/video/fb-puv3.c b/drivers/video/fb-puv3.c
index dbd2dc4745d..27f2c57e06e 100644
--- a/drivers/video/fb-puv3.c
+++ b/drivers/video/fb-puv3.c
@@ -13,7 +13,6 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
-#include <linux/vmalloc.h>
 #include <linux/platform_device.h>
 #include <linux/clk.h>
 #include <linux/fb.h>
@@ -531,7 +530,7 @@ static int unifb_set_par(struct fb_info *info)
                 return -EINVAL;
         }
 
-        writel(PKUNITY_UNIGFX_MMAP_BASE, UDE_FSA);
+        writel(info->fix.smem_start, UDE_FSA);
         writel(info->var.yres, UDE_LS);
         writel(get_line_length(info->var.xres,
                         info->var.bits_per_pixel) >> 3, UDE_PS);
@@ -680,13 +679,27 @@ static int unifb_probe(struct platform_device *dev)
         struct fb_info *info;
         u32 unifb_regs[UNIFB_REGS_NUM];
         int retval = -ENOMEM;
-        struct resource *iomem, *mapmem;
+        struct resource *iomem;
+        void *videomemory;
+
+        videomemory = (void *)__get_free_pages(GFP_KERNEL | __GFP_COMP,
+                                get_order(UNIFB_MEMSIZE));
+        if (!videomemory)
+                goto err;
+
+        memset(videomemory, 0, UNIFB_MEMSIZE);
+
+        unifb_fix.smem_start = virt_to_phys(videomemory);
+        unifb_fix.smem_len = UNIFB_MEMSIZE;
+
+        iomem = platform_get_resource(dev, IORESOURCE_MEM, 0);
+        unifb_fix.mmio_start = iomem->start;
 
         info = framebuffer_alloc(sizeof(u32)*256, &dev->dev);
         if (!info)
                 goto err;
 
-        info->screen_base = (char __iomem *)KUSER_UNIGFX_BASE;
+        info->screen_base = (char __iomem *)videomemory;
         info->fbops = &unifb_ops;
 
         retval = fb_find_mode(&info->var, info, NULL,
@@ -695,13 +708,6 @@ static int unifb_probe(struct platform_device *dev)
         if (!retval || (retval == 4))
                 info->var = unifb_default;
 
-        iomem = platform_get_resource(dev, IORESOURCE_MEM, 0);
-        unifb_fix.mmio_start = iomem->start;
-
-        mapmem = platform_get_resource(dev, IORESOURCE_MEM, 1);
-        unifb_fix.smem_start = mapmem->start;
-        unifb_fix.smem_len = UNIFB_MEMSIZE;
-
         info->fix = unifb_fix;
         info->pseudo_palette = info->par;
         info->par = NULL;