From 6b794743b2c5e21825d35b5d5dd57d6fcc388198 Mon Sep 17 00:00:00 2001 From: Guan Xuetao Date: Fri, 1 Apr 2011 16:38:59 +0800 Subject: [PATCH] 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 Acked-by: Arnd Bergmann --- arch/unicore32/include/mach/PKUnity.h | 10 ---------- arch/unicore32/include/mach/memory.h | 1 - arch/unicore32/kernel/puv3-core.c | 5 ----- arch/unicore32/kernel/setup.c | 15 ++------------ arch/unicore32/mm/mmu.c | 20 ------------------- drivers/video/fb-puv3.c | 28 ++++++++++++++++----------- 6 files changed, 19 insertions(+), 60 deletions(-) diff --git a/arch/unicore32/include/mach/PKUnity.h b/arch/unicore32/include/mach/PKUnity.h index a18bdc3810e6..8040d575dddb 100644 --- a/arch/unicore32/include/mach/PKUnity.h +++ b/arch/unicore32/include/mach/PKUnity.h @@ -23,16 +23,6 @@ #define PKUNITY_SDRAM_BASE 0x00000000 /* 0x00000000 - 0x7FFFFFFF 2GB */ #define PKUNITY_MMIO_BASE 0x80000000 /* 0x80000000 - 0xFFFFFFFF 2GB */ -/* - * PKUNITY Memory Map Addresses: 0x0D000000 - 0x0EFFFFFF (32MB) - * 0x0D000000 - 0x0DFFFFFF 16MB: for UVC - * 0x0E000000 - 0x0EFFFFFF 16MB: for UNIGFX - */ -#define PKUNITY_UVC_MMAP_BASE 0x0D000000 -#define PKUNITY_UVC_MMAP_SIZE 0x01000000 /* 16MB */ -#define PKUNITY_UNIGFX_MMAP_BASE 0x0E000000 -#define PKUNITY_UNIGFX_MMAP_SIZE 0x01000000 /* 16MB */ - /* * PKUNITY System Bus Addresses (PCI): 0x80000000 - 0xBFFFFFFF (1GB) * 0x80000000 - 0x8000000B 12B PCI Configuration regs diff --git a/arch/unicore32/include/mach/memory.h b/arch/unicore32/include/mach/memory.h index 0bf21c944710..4be72c21d491 100644 --- a/arch/unicore32/include/mach/memory.h +++ b/arch/unicore32/include/mach/memory.h @@ -50,7 +50,6 @@ void puv3_pci_adjust_zones(unsigned long *size, unsigned long *holes); /* kuser area */ #define KUSER_VECPAGE_BASE (KUSER_BASE + UL(0x3fff0000)) -#define KUSER_UNIGFX_BASE (PAGE_OFFSET + PKUNITY_UNIGFX_MMAP_BASE) /* kuser_vecpage (0xbfff0000) is ro, and vectors page (0xffff0000) is rw */ #define kuser_vecpage_to_vectors(x) ((x) - (KUSER_VECPAGE_BASE) \ + (VECTORS_BASE)) diff --git a/arch/unicore32/kernel/puv3-core.c b/arch/unicore32/kernel/puv3-core.c index 8b1b6beb858e..1a505a787765 100644 --- a/arch/unicore32/kernel/puv3-core.c +++ b/arch/unicore32/kernel/puv3-core.c @@ -99,11 +99,6 @@ static struct resource puv3_unigfx_resources[] = { .end = io_v2p(PKUNITY_UNIGFX_BASE) + 0xfff, .flags = IORESOURCE_MEM, }, - [1] = { - .start = PKUNITY_UNIGFX_MMAP_BASE, - .end = PKUNITY_UNIGFX_MMAP_BASE + PKUNITY_UNIGFX_MMAP_SIZE, - .flags = IORESOURCE_MEM, - }, }; static struct resource puv3_rtc_resources[] = { diff --git a/arch/unicore32/kernel/setup.c b/arch/unicore32/kernel/setup.c index 1e175a82844d..471b6bca8da4 100644 --- a/arch/unicore32/kernel/setup.c +++ b/arch/unicore32/kernel/setup.c @@ -63,12 +63,6 @@ static char default_command_line[COMMAND_LINE_SIZE] __initdata = CONFIG_CMDLINE; * Standard memory resources */ static struct resource mem_res[] = { - { - .name = "Video RAM", - .start = 0, - .end = 0, - .flags = IORESOURCE_MEM - }, { .name = "Kernel text", .start = 0, @@ -83,9 +77,8 @@ static struct resource mem_res[] = { } }; -#define video_ram mem_res[0] -#define kernel_code mem_res[1] -#define kernel_data mem_res[2] +#define kernel_code mem_res[0] +#define kernel_data mem_res[1] /* * These functions re-use the assembly code in head.S, which @@ -224,10 +217,6 @@ request_standard_resources(struct meminfo *mi) kernel_data.end <= res->end) request_resource(res, &kernel_data); } - - video_ram.start = PKUNITY_UNIGFX_MMAP_BASE; - video_ram.end = PKUNITY_UNIGFX_MMAP_BASE + PKUNITY_UNIGFX_MMAP_SIZE; - request_resource(&iomem_resource, &video_ram); } static void (*init_machine)(void) __initdata; diff --git a/arch/unicore32/mm/mmu.c b/arch/unicore32/mm/mmu.c index 7bf3d588631f..db2d334941b4 100644 --- a/arch/unicore32/mm/mmu.c +++ b/arch/unicore32/mm/mmu.c @@ -338,15 +338,6 @@ void __init uc32_mm_memblock_reserve(void) * and can only be in node 0. */ memblock_reserve(__pa(swapper_pg_dir), PTRS_PER_PGD * sizeof(pgd_t)); - -#ifdef CONFIG_PUV3_UNIGFX - /* - * These should likewise go elsewhere. They pre-reserve the - * screen/video memory region at the 48M~64M of main system memory. - */ - memblock_reserve(PKUNITY_UNIGFX_MMAP_BASE, PKUNITY_UNIGFX_MMAP_SIZE); - memblock_reserve(PKUNITY_UVC_MMAP_BASE, PKUNITY_UVC_MMAP_SIZE); -#endif } /* @@ -370,17 +361,6 @@ static void __init devicemaps_init(void) for (addr = VMALLOC_END; addr; addr += PGDIR_SIZE) pmd_clear(pmd_off_k(addr)); - /* - * Create a mapping for UniGFX VRAM - */ -#ifdef CONFIG_PUV3_UNIGFX - map.pfn = __phys_to_pfn(PKUNITY_UNIGFX_MMAP_BASE); - map.virtual = KUSER_UNIGFX_BASE; - map.length = PKUNITY_UNIGFX_MMAP_SIZE; - map.type = MT_KUSER; - create_mapping(&map); -#endif - /* * Create a mapping for the machine vectors at the high-vectors * location (0xffff0000). If we aren't using high-vectors, also diff --git a/drivers/video/fb-puv3.c b/drivers/video/fb-puv3.c index dbd2dc4745d1..27f2c57e06e9 100644 --- a/drivers/video/fb-puv3.c +++ b/drivers/video/fb-puv3.c @@ -13,7 +13,6 @@ #include #include #include -#include #include #include #include @@ -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; -- 2.20.1