diff options
| -rw-r--r-- | Documentation/arm/OMAP/DSS | 10 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/board-rx51-video.c | 14 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/board-rx51.c | 3 | ||||
| -rw-r--r-- | arch/arm/plat-omap/common.c | 2 | ||||
| -rw-r--r-- | arch/arm/plat-omap/fb.c | 5 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/vram.h | 43 | ||||
| -rw-r--r-- | drivers/video/omap2/Kconfig | 3 | ||||
| -rw-r--r-- | drivers/video/omap2/Makefile | 1 | ||||
| -rw-r--r-- | drivers/video/omap2/dss/Kconfig | 12 | ||||
| -rw-r--r-- | drivers/video/omap2/omapfb/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/video/omap2/omapfb/omapfb-ioctl.c | 14 | ||||
| -rw-r--r-- | drivers/video/omap2/omapfb/omapfb-main.c | 69 | ||||
| -rw-r--r-- | drivers/video/omap2/omapfb/omapfb.h | 5 | ||||
| -rw-r--r-- | drivers/video/omap2/vram.c | 514 |
14 files changed, 55 insertions, 641 deletions
diff --git a/Documentation/arm/OMAP/DSS b/Documentation/arm/OMAP/DSS index a564ceea9e9..4484e021290 100644 --- a/Documentation/arm/OMAP/DSS +++ b/Documentation/arm/OMAP/DSS @@ -285,7 +285,10 @@ FB0 +-- GFX ---- LCD ---- LCD Misc notes ---------- -OMAP FB allocates the framebuffer memory using the OMAP VRAM allocator. +OMAP FB allocates the framebuffer memory using the standard dma allocator. You +can enable Contiguous Memory Allocator (CONFIG_CMA) to improve the dma +allocator, and if CMA is enabled, you use "cma=" kernel parameter to increase +the global memory area for CMA. Using DSI DPLL to generate pixel clock it is possible produce the pixel clock of 86.5MHz (max possible), and with that you get 1280x1024@57 output from DVI. @@ -301,11 +304,6 @@ framebuffer parameters. Kernel boot arguments --------------------- -vram=<size>[,<physaddr>] - - Amount of total VRAM to preallocate and optionally a physical start - memory address. For example, "10M". omapfb allocates memory for - framebuffers from VRAM. - omapfb.mode=<display>:<mode>[,...] - Default video mode for specified displays. For example, "dvi:800x400MR-24@60". See drivers/video/modedb.c. diff --git a/arch/arm/mach-omap2/board-rx51-video.c b/arch/arm/mach-omap2/board-rx51-video.c index c22e111bcd0..46f4fc98276 100644 --- a/arch/arm/mach-omap2/board-rx51-video.c +++ b/arch/arm/mach-omap2/board-rx51-video.c @@ -16,7 +16,6 @@ #include <linux/mm.h> #include <asm/mach-types.h> #include <video/omapdss.h> -#include <plat/vram.h> #include <linux/platform_data/spi-omap2-mcspi.h> #include "board-rx51.h" @@ -87,17 +86,4 @@ static int __init rx51_video_init(void) } subsys_initcall(rx51_video_init); - -void __init rx51_video_mem_init(void) -{ - /* - * GFX 864x480x32bpp - * VID1/2 1280x720x32bpp double buffered - */ - omap_vram_set_sdram_vram(PAGE_ALIGN(864 * 480 * 4) + - 2 * PAGE_ALIGN(1280 * 720 * 4 * 2), 0); -} - -#else -void __init rx51_video_mem_init(void) { } #endif /* defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE) */ diff --git a/arch/arm/mach-omap2/board-rx51.c b/arch/arm/mach-omap2/board-rx51.c index 7bbb05d9689..6e0de6f8327 100644 --- a/arch/arm/mach-omap2/board-rx51.c +++ b/arch/arm/mach-omap2/board-rx51.c @@ -34,8 +34,6 @@ #define RX51_GPIO_SLEEP_IND 162 -extern void rx51_video_mem_init(void); - static struct gpio_led gpio_leds[] = { { .name = "sleep_ind", @@ -112,7 +110,6 @@ static void __init rx51_init(void) static void __init rx51_reserve(void) { - rx51_video_mem_init(); omap_reserve(); } diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c index 111315a6935..d21ed18355a 100644 --- a/arch/arm/plat-omap/common.c +++ b/arch/arm/plat-omap/common.c @@ -17,7 +17,6 @@ #include <linux/dma-mapping.h> #include <plat/common.h> -#include <plat/vram.h> #include <linux/platform_data/dsp-omap.h> #include <plat/dma.h> @@ -25,7 +24,6 @@ void __init omap_reserve(void) { - omap_vram_reserve_sdram_memblock(); omap_dsp_reserve_sdram_memblock(); omap_secure_ram_reserve_memblock(); omap_barrier_reserve_memblock(); diff --git a/arch/arm/plat-omap/fb.c b/arch/arm/plat-omap/fb.c index f868caeedfd..6df0c215fdb 100644 --- a/arch/arm/plat-omap/fb.c +++ b/arch/arm/plat-omap/fb.c @@ -29,6 +29,7 @@ #include <linux/memblock.h> #include <linux/io.h> #include <linux/omapfb.h> +#include <linux/dma-mapping.h> #include <mach/hardware.h> #include <asm/mach/map.h> @@ -106,7 +107,7 @@ static struct platform_device omap_fb_device = { .id = -1, .dev = { .dma_mask = &omap_fb_dma_mask, - .coherent_dma_mask = ~(u32)0, + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = &omapfb_config, }, .num_resources = 0, @@ -142,7 +143,7 @@ static struct platform_device omap_fb_device = { .id = -1, .dev = { .dma_mask = &omap_fb_dma_mask, - .coherent_dma_mask = ~(u32)0, + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = &omapfb_config, }, .num_resources = 0, diff --git a/arch/arm/plat-omap/include/plat/vram.h b/arch/arm/plat-omap/include/plat/vram.h deleted file mode 100644 index 4d65b7d06e6..00000000000 --- a/arch/arm/plat-omap/include/plat/vram.h +++ /dev/null @@ -1,43 +0,0 @@ -/* - * VRAM manager for OMAP - * - * Copyright (C) 2009 Nokia Corporation - * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - */ - -#ifndef __OMAP_VRAM_H__ -#define __OMAP_VRAM_H__ - -#include <linux/types.h> - -extern int omap_vram_add_region(unsigned long paddr, size_t size); -extern int omap_vram_free(unsigned long paddr, size_t size); -extern int omap_vram_alloc(size_t size, unsigned long *paddr); -extern int omap_vram_reserve(unsigned long paddr, size_t size); -extern void omap_vram_get_info(unsigned long *vram, unsigned long *free_vram, - unsigned long *largest_free_block); - -#ifdef CONFIG_OMAP2_VRAM -extern void omap_vram_set_sdram_vram(u32 size, u32 start); - -extern void omap_vram_reserve_sdram_memblock(void); -#else -static inline void omap_vram_set_sdram_vram(u32 size, u32 start) { } - -static inline void omap_vram_reserve_sdram_memblock(void) { } -#endif - -#endif diff --git a/drivers/video/omap2/Kconfig b/drivers/video/omap2/Kconfig index d877c361abd..346d67d6cf4 100644 --- a/drivers/video/omap2/Kconfig +++ b/drivers/video/omap2/Kconfig @@ -1,6 +1,3 @@ -config OMAP2_VRAM - bool - config OMAP2_VRFB bool diff --git a/drivers/video/omap2/Makefile b/drivers/video/omap2/Makefile index 5ddef129f79..5ea7cb9aed1 100644 --- a/drivers/video/omap2/Makefile +++ b/drivers/video/omap2/Makefile @@ -1,4 +1,3 @@ -obj-$(CONFIG_OMAP2_VRAM) += vram.o obj-$(CONFIG_OMAP2_VRFB) += vrfb.o obj-$(CONFIG_OMAP2_DSS) += dss/ diff --git a/drivers/video/omap2/dss/Kconfig b/drivers/video/omap2/dss/Kconfig index 50e880260d8..cb0f145c707 100644 --- a/drivers/video/omap2/dss/Kconfig +++ b/drivers/video/omap2/dss/Kconfig @@ -5,18 +5,6 @@ menuconfig OMAP2_DSS if OMAP2_DSS -config OMAP2_VRAM_SIZE - int "VRAM size (MB)" - range 0 32 - default 0 - help - The amount of SDRAM to reserve at boot time for video RAM use. - This VRAM will be used by omapfb and other drivers that need - large continuous RAM area for video use. - - You can also set this with "vram=<bytes>" kernel argument, or - in the board file. - config OMAP2_DSS_DEBUG bool "Debug support" default n diff --git a/drivers/video/omap2/omapfb/Kconfig b/drivers/video/omap2/omapfb/Kconfig index 4ea17dc3258..4cb12ce6885 100644 --- a/drivers/video/omap2/omapfb/Kconfig +++ b/drivers/video/omap2/omapfb/Kconfig @@ -2,7 +2,6 @@ menuconfig FB_OMAP2 tristate "OMAP2+ frame buffer support" depends on FB && OMAP2_DSS && !DRM_OMAP - select OMAP2_VRAM select OMAP2_VRFB if ARCH_OMAP2 || ARCH_OMAP3 select FB_CFB_FILLRECT select FB_CFB_COPYAREA diff --git a/drivers/video/omap2/omapfb/omapfb-ioctl.c b/drivers/video/omap2/omapfb/omapfb-ioctl.c index 55a39be694a..3c73adbbf5f 100644 --- a/drivers/video/omap2/omapfb/omapfb-ioctl.c +++ b/drivers/video/omap2/omapfb/omapfb-ioctl.c @@ -31,7 +31,6 @@ #include <video/omapdss.h> #include <video/omapvrfb.h> -#include <plat/vram.h> #include "omapfb.h" @@ -853,14 +852,15 @@ int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg) break; case OMAPFB_GET_VRAM_INFO: { - unsigned long vram, free, largest; - DBG("ioctl GET_VRAM_INFO\n"); - omap_vram_get_info(&vram, &free, &largest); - p.vram_info.total = vram; - p.vram_info.free = free; - p.vram_info.largest_free_block = largest; + /* + * We don't have the ability to get this vram info anymore. + * Fill in something that should keep the applications working. + */ + p.vram_info.total = SZ_1M * 64; + p.vram_info.free = SZ_1M * 64; + p.vram_info.largest_free_block = SZ_1M * 64; if (copy_to_user((void __user *)arg, &p.vram_info, sizeof(p.vram_info))) diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c index be9096ced79..408a3cce47a 100644 --- a/drivers/video/omap2/omapfb/omapfb-main.c +++ b/drivers/video/omap2/omapfb/omapfb-main.c @@ -31,7 +31,6 @@ #include <linux/omapfb.h> #include <video/omapdss.h> -#include <plat/vram.h> #include <video/omapvrfb.h> #include "omapfb.h" @@ -1333,24 +1332,25 @@ static void omapfb_free_fbmem(struct fb_info *fbi) rg = ofbi->region; - WARN_ON(atomic_read(&rg->map_count)); - - if (rg->paddr) - if (omap_vram_free(rg->paddr, rg->size)) - dev_err(fbdev->dev, "VRAM FREE failed\n"); + if (rg->token == NULL) + return; - if (rg->vaddr) - iounmap(rg->vaddr); + WARN_ON(atomic_read(&rg->map_count)); if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { /* unmap the 0 angle rotation */ if (rg->vrfb.vaddr[0]) { iounmap(rg->vrfb.vaddr[0]); - omap_vrfb_release_ctx(&rg->vrfb); rg->vrfb.vaddr[0] = NULL; } + + omap_vrfb_release_ctx(&rg->vrfb); } + dma_free_attrs(fbdev->dev, rg->size, rg->token, rg->dma_handle, + &rg->attrs); + + rg->token = NULL; rg->vaddr = NULL; rg->paddr = 0; rg->alloc = 0; @@ -1385,7 +1385,9 @@ static int omapfb_alloc_fbmem(struct fb_info *fbi, unsigned long size, struct omapfb_info *ofbi = FB2OFB(fbi); struct omapfb2_device *fbdev = ofbi->fbdev; struct omapfb2_mem_region *rg; - void __iomem *vaddr; + void *token; + DEFINE_DMA_ATTRS(attrs); + dma_addr_t dma_handle; int r; rg = ofbi->region; @@ -1400,42 +1402,43 @@ static int omapfb_alloc_fbmem(struct fb_info *fbi, unsigned long size, size = PAGE_ALIGN(size); - if (!paddr) { - DBG("allocating %lu bytes for fb %d\n", size, ofbi->id); - r = omap_vram_alloc(size, &paddr); - } else { - DBG("reserving %lu bytes at %lx for fb %d\n", size, paddr, - ofbi->id); - r = omap_vram_reserve(paddr, size); - } + WARN_ONCE(paddr, + "reserving memory at predefined address not supported\n"); - if (r) { + dma_set_attr(DMA_ATTR_WRITE_COMBINE, &attrs); + + if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) + dma_set_attr(DMA_ATTR_NO_KERNEL_MAPPING, &attrs); + + DBG("allocating %lu bytes for fb %d\n", size, ofbi->id); + + token = dma_alloc_attrs(fbdev->dev, size, &dma_handle, + GFP_KERNEL, &attrs); + + if (token == NULL) { dev_err(fbdev->dev, "failed to allocate framebuffer\n"); return -ENOMEM; } - if (ofbi->rotation_type != OMAP_DSS_ROT_VRFB) { - vaddr = ioremap_wc(paddr, size); - - if (!vaddr) { - dev_err(fbdev->dev, "failed to ioremap framebuffer\n"); - omap_vram_free(paddr, size); - return -ENOMEM; - } + DBG("allocated VRAM paddr %lx, vaddr %p\n", + (unsigned long)dma_handle, token); - DBG("allocated VRAM paddr %lx, vaddr %p\n", paddr, vaddr); - } else { + if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { r = omap_vrfb_request_ctx(&rg->vrfb); if (r) { + dma_free_attrs(fbdev->dev, size, token, dma_handle, + &attrs); dev_err(fbdev->dev, "vrfb create ctx failed\n"); return r; } - - vaddr = NULL; } - rg->paddr = paddr; - rg->vaddr = vaddr; + rg->attrs = attrs; + rg->token = token; + rg->dma_handle = dma_handle; + + rg->paddr = (unsigned long)dma_handle; + rg->vaddr = (void __iomem *)token; rg->size = size; rg->alloc = 1; diff --git a/drivers/video/omap2/omapfb/omapfb.h b/drivers/video/omap2/omapfb/omapfb.h index 5ced9b334d3..5f72bf9017f 100644 --- a/drivers/video/omap2/omapfb/omapfb.h +++ b/drivers/video/omap2/omapfb/omapfb.h @@ -28,6 +28,8 @@ #endif #include <linux/rwsem.h> +#include <linux/dma-attrs.h> +#include <linux/dma-mapping.h> #include <video/omapdss.h> @@ -49,6 +51,9 @@ extern bool omapfb_debug; struct omapfb2_mem_region { int id; + struct dma_attrs attrs; + void *token; + dma_addr_t dma_handle; u32 paddr; void __iomem *vaddr; struct vrfb vrfb; diff --git a/drivers/video/omap2/vram.c b/drivers/video/omap2/vram.c deleted file mode 100644 index f2b15c4a75b..00000000000 --- a/drivers/video/omap2/vram.c +++ /dev/null @@ -1,514 +0,0 @@ -/* - * VRAM manager for OMAP - * - * Copyright (C) 2009 Nokia Corporation - * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - */ - -/*#define DEBUG*/ - -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/list.h> -#include <linux/slab.h> -#include <linux/seq_file.h> -#include <linux/memblock.h> -#include <linux/completion.h> -#include <linux/debugfs.h> -#include <linux/jiffies.h> -#include <linux/module.h> - -#include <asm/setup.h> - -#include <plat/vram.h> - -#ifdef DEBUG -#define DBG(format, ...) pr_debug("VRAM: " format, ## __VA_ARGS__) -#else -#define DBG(format, ...) -#endif - -/* postponed regions are used to temporarily store region information at boot - * time when we cannot yet allocate the region list */ -#define MAX_POSTPONED_REGIONS 10 - -static bool vram_initialized; -static int postponed_cnt; -static struct { - unsigned long paddr; - size_t size; -} postponed_regions[MAX_POSTPONED_REGIONS]; - -struct vram_alloc { - struct list_head list; - unsigned long paddr; - unsigned pages; -}; - -struct vram_region { - struct list_head list; - struct list_head alloc_list; - unsigned long paddr; - unsigned pages; -}; - -static DEFINE_MUTEX(region_mutex); -static LIST_HEAD(region_list); - -static struct vram_region *omap_vram_create_region(unsigned long paddr, - unsigned pages) -{ - struct vram_region *rm; - - rm = kzalloc(sizeof(*rm), GFP_KERNEL); - - if (rm) { - INIT_LIST_HEAD(&rm->alloc_list); - rm->paddr = paddr; - rm->pages = pages; - } - - return rm; -} - -#if 0 -static void omap_vram_free_region(struct vram_region *vr) -{ - list_del(&vr->list); - kfree(vr); -} -#endif - -static struct vram_alloc *omap_vram_create_allocation(struct vram_region *vr, - unsigned long paddr, unsigned pages) -{ - struct vram_alloc *va; - struct vram_alloc *new; - - new = kzalloc(sizeof(*va), GFP_KERNEL); - - if (!new) - return NULL; - - new->paddr = paddr; - new->pages = pages; - - list_for_each_entry(va, &vr->alloc_list, list) { - if (va->paddr > new->paddr) - break; - } - - list_add_tail(&new->list, &va->list); - - return new; -} - -static void omap_vram_free_allocation(struct vram_alloc *va) -{ - list_del(&va->list); - kfree(va); -} - -int omap_vram_add_region(unsigned long paddr, size_t size) -{ - struct vram_region *rm; - unsigned pages; - - if (vram_initialized) { - DBG("adding region paddr %08lx size %d\n", - paddr, size); - - size &= PAGE_MASK; - pages = size >> PAGE_SHIFT; - - rm = omap_vram_create_region(paddr, pages); - if (rm == NULL) - return -ENOMEM; - - list_add(&rm->list, ®ion_list); - } else { - if (postponed_cnt == MAX_POSTPONED_REGIONS) - return -ENOMEM; - - postponed_regions[postponed_cnt].paddr = paddr; - postponed_regions[postponed_cnt].size = size; - - ++postponed_cnt; - } - return 0; -} - -int omap_vram_free(unsigned long paddr, size_t size) -{ - struct vram_region *rm; - struct vram_alloc *alloc; - unsigned start, end; - - DBG("free mem paddr %08lx size %d\n", paddr, size); - - size = PAGE_ALIGN(size); - - mutex_lock(®ion_mutex); - - list_for_each_entry(rm, ®ion_list, list) { - list_for_each_entry(alloc, &rm->alloc_list, list) { - start = alloc->paddr; - end = alloc->paddr + (alloc->pages >> PAGE_SHIFT); - - if (start >= paddr && end < paddr + size) - goto found; - } - } - - mutex_unlock(®ion_mutex); - return -EINVAL; - -found: - omap_vram_free_allocation(alloc); - - mutex_unlock(®ion_mutex); - return 0; -} -EXPORT_SYMBOL(omap_vram_free); - -static int _omap_vram_reserve(unsigned long paddr, unsigned pages) -{ - struct vram_region *rm; - struct vram_alloc *alloc; - size_t size; - - size = pages << PAGE_SHIFT; - - list_for_each_entry(rm, ®ion_list, list) { - unsigned long start, end; - - DBG("checking region %lx %d\n", rm->paddr, rm->pages); - - start = rm->paddr; - end = start + (rm->pages << PAGE_SHIFT) - 1; - if (start > paddr || end < paddr + size - 1) - continue; - - DBG("block ok, checking allocs\n"); - - list_for_each_entry(alloc, &rm->alloc_list, list) { - end = alloc->paddr - 1; - - if (start <= paddr && end >= paddr + size - 1) - goto found; - - start = alloc->paddr + (alloc->pages << PAGE_SHIFT); - } - - end = rm->paddr + (rm->pages << PAGE_SHIFT) - 1; - - if (!(start <= paddr && end >= paddr + size - 1)) - continue; -found: - DBG("found area start %lx, end %lx\n", start, end); - - if (omap_vram_create_allocation(rm, paddr, pages) == NULL) - return -ENOMEM; - - return 0; - } - - return -ENOMEM; -} - -int omap_vram_reserve(unsigned long paddr, size_t size) -{ - unsigned pages; - int r; - - DBG("reserve mem paddr %08lx size %d\n", paddr, size); - - size = PAGE_ALIGN(size); - pages = size >> PAGE_SHIFT; - - mutex_lock(®ion_mutex); - - r = _omap_vram_reserve(paddr, pages); - - mutex_unlock(®ion_mutex); - - return r; -} -EXPORT_SYMBOL(omap_vram_reserve); - -static int _omap_vram_alloc(unsigned pages, unsigned long *paddr) -{ - struct vram_region *rm; - struct vram_alloc *alloc; - - list_for_each_entry(rm, ®ion_list, list) { - unsigned long start, end; - - DBG("checking region %lx %d\n", rm->paddr, rm->pages); - - start = rm->paddr; - - list_for_each_entry(alloc, &rm->alloc_list, list) { - end = alloc->paddr; - - if (end - start >= pages << PAGE_SHIFT) - goto found; - - start = alloc->paddr + (alloc->pages << PAGE_SHIFT); - } - - end = rm->paddr + (rm->pages << PAGE_SHIFT); -found: - if (end - start < pages << PAGE_SHIFT) - continue; - - DBG("found %lx, end %lx\n", start, end); - - alloc = omap_vram_create_allocation(rm, start, pages); - if (alloc == NULL) - return -ENOMEM; - - *paddr = start; - - return 0; - } - - return -ENOMEM; -} - -int omap_vram_alloc(size_t size, unsigned long *paddr) -{ - unsigned pages; - int r; - - BUG_ON(!size); - - DBG("alloc mem size %d\n", size); - - size = PAGE_ALIGN(size); - pages = size >> PAGE_SHIFT; - - mutex_lock(®ion_mutex); - - r = _omap_vram_alloc(pages, paddr); - - mutex_unlock(®ion_mutex); - - return r; -} -EXPORT_SYMBOL(omap_vram_alloc); - -void omap_vram_get_info(unsigned long *vram, - unsigned long *free_vram, - unsigned long *largest_free_block) -{ - struct vram_region *vr; - struct vram_alloc *va; - - *vram = 0; - *free_vram = 0; - *largest_free_block = 0; - - mutex_lock(®ion_mutex); - - list_for_each_entry(vr, ®ion_list, list) { - unsigned free; - unsigned long pa; - - pa = vr->paddr; - *vram += vr->pages << PAGE_SHIFT; - - list_for_each_entry(va, &vr->alloc_list, list) { - free = va->paddr - pa; - *free_vram += free; - if (free > *largest_free_block) - *largest_free_block = free; - pa = va->paddr + (va->pages << PAGE_SHIFT); - } - - free = vr->paddr + (vr->pages << PAGE_SHIFT) - pa; - *free_vram += free; - if (free > *largest_free_block) - *largest_free_block = free; - } - - mutex_unlock(®ion_mutex); -} -EXPORT_SYMBOL(omap_vram_get_info); - -#if defined(CONFIG_DEBUG_FS) -static int vram_debug_show(struct seq_file *s, void *unused) -{ - struct vram_region *vr; - struct vram_alloc *va; - unsigned size; - - mutex_lock(®ion_mutex); - - list_for_each_entry(vr, ®ion_list, list) { - size = vr->pages << PAGE_SHIFT; - seq_printf(s, "%08lx-%08lx (%d bytes)\n", - vr->paddr, vr->paddr + size - 1, - size); - - list_for_each_entry(va, &vr->alloc_list, list) { - size = va->pages << PAGE_SHIFT; - seq_printf(s, " %08lx-%08lx (%d bytes)\n", - va->paddr, va->paddr + size - 1, - size); - } - } - - mutex_unlock(®ion_mutex); - - return 0; -} - -static int vram_debug_open(struct inode *inode, struct file *file) -{ - return single_open(file, vram_debug_show, inode->i_private); -} - -static const struct file_operations vram_debug_fops = { - .open = vram_debug_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static int __init omap_vram_create_debugfs(void) -{ - struct dentry *d; - - d = debugfs_create_file("vram", S_IRUGO, NULL, - NULL, &vram_debug_fops); - if (IS_ERR(d)) - return PTR_ERR(d); - - return 0; -} -#endif - -static __init int omap_vram_init(void) -{ - int i; - - vram_initialized = 1; - - for (i = 0; i < postponed_cnt; i++) - omap_vram_add_region(postponed_regions[i].paddr, - postponed_regions[i].size); - -#ifdef CONFIG_DEBUG_FS - if (omap_vram_create_debugfs()) - pr_err("VRAM: Failed to create debugfs file\n"); -#endif - - return 0; -} - -arch_initcall(omap_vram_init); - -/* boottime vram alloc stuff */ - -/* set from board file */ -static u32 omap_vram_sdram_start __initdata; -static u32 omap_vram_sdram_size __initdata; - -/* set from kernel cmdline */ -static u32 omap_vram_def_sdram_size __initdata; -static u32 omap_vram_def_sdram_start __initdata; - -static int __init omap_vram_early_vram(char *p) -{ - omap_vram_def_sdram_size = memparse(p, &p); - if (*p == ',') - omap_vram_def_sdram_start = simple_strtoul(p + 1, &p, 16); - return 0; -} -early_param("vram", omap_vram_early_vram); - -/* - * Called from map_io. We need to call to this early enough so that we - * can reserve the fixed SDRAM regions before VM could get hold of them. - */ -void __init omap_vram_reserve_sdram_memblock(void) -{ - u32 paddr; - u32 size = 0; - - /* cmdline arg overrides the board file definition */ - if (omap_vram_def_sdram_size) { - size = omap_vram_def_sdram_size; - paddr = omap_vram_def_sdram_start; - } - - if (!size) { - size = omap_vram_sdram_size; - paddr = omap_vram_sdram_start; - } - -#ifdef CONFIG_OMAP2_VRAM_SIZE - if (!size) { - size = CONFIG_OMAP2_VRAM_SIZE * 1024 * 1024; - paddr = 0; - } -#endif - - if (!size) - return; - - size = ALIGN(size, SZ_2M); - - if (paddr) { - if (paddr & ~PAGE_MASK) { - pr_err("VRAM start address 0x%08x not page aligned\n", - paddr); - return; - } - - if (!memblock_is_region_memory(paddr, size)) { - pr_err("Illegal SDRAM region 0x%08x..0x%08x for VRAM\n", - paddr, paddr + size - 1); - return; - } - - if (memblock_is_region_reserved(paddr, size)) { - pr_err("FB: failed to reserve VRAM - busy\n"); - return; - } - - if (memblock_reserve(paddr, size) < 0) { - pr_err("FB: failed to reserve VRAM - no memory\n"); - return; - } - } else { - paddr = memblock_alloc(size, SZ_2M); - } - - memblock_free(paddr, size); - memblock_remove(paddr, size); - - omap_vram_add_region(paddr, size); - - pr_info("Reserving %u bytes SDRAM for VRAM\n", size); -} - -void __init omap_vram_set_sdram_vram(u32 size, u32 start) -{ - omap_vram_sdram_start = start; - omap_vram_sdram_size = size; -} |