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>
diff --git a/drivers/video/fb-puv3.c b/drivers/video/fb-puv3.c
index dbd2dc4..27f2c57 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 @@
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 @@
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 @@
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;