diff options
Diffstat (limited to 'arch/arm/plat-omap')
-rw-r--r-- | arch/arm/plat-omap/fb.c | 172 | ||||
-rw-r--r-- | arch/arm/plat-omap/fb.h | 10 |
2 files changed, 0 insertions, 182 deletions
diff --git a/arch/arm/plat-omap/fb.c b/arch/arm/plat-omap/fb.c index c9e5d7298c4..15d4d1657b1 100644 --- a/arch/arm/plat-omap/fb.c +++ b/arch/arm/plat-omap/fb.c @@ -34,9 +34,6 @@ #include <asm/mach/map.h> #include <plat/board.h> -#include <plat/sram.h> - -#include "fb.h" #if defined(CONFIG_FB_OMAP) || defined(CONFIG_FB_OMAP_MODULE) @@ -74,24 +71,6 @@ static inline int range_included(unsigned long start1, unsigned long size1, return start1 >= start2 && start1 + size1 <= start2 + size2; } - -/* Check if there is an overlapping region. */ -static int fbmem_region_reserved(unsigned long start, size_t size) -{ - struct omapfb_mem_region *rg; - int i; - - rg = &omapfb_config.mem_desc.region[0]; - for (i = 0; i < OMAPFB_PLANE_NUM; i++, rg++) { - if (!rg->paddr) - /* Empty slot. */ - continue; - if (ranges_overlap(start, size, rg->paddr, rg->size)) - return 1; - } - return 0; -} - /* * Get the region_idx`th region from board config/ATAG and convert it to * our internal format. @@ -119,60 +98,6 @@ static int __init get_fbmem_region(int region_idx, struct omapfb_mem_region *rg) return 0; } -static int set_fbmem_region_type(struct omapfb_mem_region *rg, int mem_type, - unsigned long mem_start, - unsigned long mem_size) -{ - /* - * Check if the configuration specifies the type explicitly. - * type = 0 && paddr = 0, a default don't care case maps to - * the SDRAM type. - */ - if (rg->type || !rg->paddr) - return 0; - if (ranges_overlap(rg->paddr, rg->size, mem_start, mem_size)) { - rg->type = mem_type; - return 0; - } - /* Can't determine it. */ - return -1; -} - -static int check_fbmem_region(int region_idx, struct omapfb_mem_region *rg, - unsigned long start_avail, unsigned size_avail) -{ - unsigned long paddr = rg->paddr; - size_t size = rg->size; - - if (rg->type > OMAPFB_MEMTYPE_MAX) { - printk(KERN_ERR - "Invalid start address for FB region %d\n", region_idx); - return -EINVAL; - } - - if (!rg->size) { - printk(KERN_ERR "Zero size for FB region %d\n", region_idx); - return -EINVAL; - } - - if (!paddr) - /* Allocate this dynamically, leave paddr 0 for now. */ - return 0; - - /* - * Fixed region for the given RAM range. Check if it's already - * reserved by the FB code or someone else. - */ - if (fbmem_region_reserved(paddr, size) || - !range_included(paddr, size, start_avail, size_avail)) { - printk(KERN_ERR "Trying to use reserved memory " - "for FB region %d\n", region_idx); - return -EINVAL; - } - - return 0; -} - static int valid_sdram(unsigned long addr, unsigned long size) { return memblock_is_region_memory(addr, size); @@ -250,85 +175,6 @@ void __init omapfb_reserve_sdram_memblock(void) reserved); } -/* - * Called at sram init time, before anything is pushed to the SRAM stack. - * Because of the stack scheme, we will allocate everything from the - * start of the lowest address region to the end of SRAM. This will also - * include padding for page alignment and possible holes between regions. - * - * As opposed to the SDRAM case, we'll also do any dynamic allocations at - * this point, since the driver built as a module would have problem with - * freeing / reallocating the regions. - */ -unsigned long __init omapfb_reserve_sram(unsigned long sram_pstart, - unsigned long sram_vstart, - unsigned long sram_size, - unsigned long pstart_avail, - unsigned long size_avail) -{ - struct omapfb_mem_region rg; - unsigned long pend_avail; - unsigned long reserved; - int i; - - if (config_invalid) - return 0; - - reserved = 0; - pend_avail = pstart_avail + size_avail; - for (i = 0; ; i++) { - if (get_fbmem_region(i, &rg) < 0) - break; - if (i == OMAPFB_PLANE_NUM) { - printk(KERN_ERR - "Extraneous FB mem configuration entries\n"); - config_invalid = 1; - return 0; - } - - /* Check if it's our memory type. */ - if (set_fbmem_region_type(&rg, OMAPFB_MEMTYPE_SRAM, - sram_pstart, sram_size) < 0 || - (rg.type != OMAPFB_MEMTYPE_SRAM)) - continue; - BUG_ON(omapfb_config.mem_desc.region[i].size); - - if (check_fbmem_region(i, &rg, pstart_avail, size_avail) < 0) { - config_invalid = 1; - return 0; - } - - if (!rg.paddr) { - /* Dynamic allocation */ - if ((size_avail & PAGE_MASK) < rg.size) { - printk("Not enough SRAM for FB region %d\n", - i); - config_invalid = 1; - return 0; - } - size_avail = (size_avail - rg.size) & PAGE_MASK; - rg.paddr = pstart_avail + size_avail; - } - /* Reserve everything above the start of the region. */ - if (pend_avail - rg.paddr > reserved) - reserved = pend_avail - rg.paddr; - size_avail = pend_avail - reserved - pstart_avail; - - /* - * We have a kernel mapping for this already, so the - * driver won't have to make one. - */ - rg.vaddr = (void *)(sram_vstart + rg.paddr - sram_pstart); - omapfb_config.mem_desc.region[i] = rg; - configured_regions++; - } - omapfb_config.mem_desc.region_cnt = i; - if (reserved) - pr_info("Reserving %lu bytes SRAM for frame buffer\n", - reserved); - return reserved; -} - void omapfb_set_ctrl_platform_data(void *data) { omapfb_config.ctrl_platform_data = data; @@ -390,15 +236,6 @@ void omapfb_reserve_sdram_memblock(void) { } -unsigned long __init omapfb_reserve_sram(unsigned long sram_pstart, - unsigned long sram_vstart, - unsigned long sram_size, - unsigned long start_avail, - unsigned long size_avail) -{ - return 0; -} - #else void omapfb_set_platform_data(struct omapfb_platform_data *data) @@ -409,13 +246,4 @@ void omapfb_reserve_sdram_memblock(void) { } -unsigned long __init omapfb_reserve_sram(unsigned long sram_pstart, - unsigned long sram_vstart, - unsigned long sram_size, - unsigned long start_avail, - unsigned long size_avail) -{ - return 0; -} - #endif diff --git a/arch/arm/plat-omap/fb.h b/arch/arm/plat-omap/fb.h deleted file mode 100644 index d765d0bd852..00000000000 --- a/arch/arm/plat-omap/fb.h +++ /dev/null @@ -1,10 +0,0 @@ -#ifndef __PLAT_OMAP_FB_H__ -#define __PLAT_OMAP_FB_H__ - -extern unsigned long omapfb_reserve_sram(unsigned long sram_pstart, - unsigned long sram_vstart, - unsigned long sram_size, - unsigned long pstart_avail, - unsigned long size_avail); - -#endif /* __PLAT_OMAP_FB_H__ */ |