S5PC110: HERRING: Add bootmem for reserved memory

Signed-off-by: Janghyuck Kim <janghyuck.kim@samsung.com>
Signed-off-by: huisung.kang <hs1218.kang@samsung.com>

2 files changed, 222 insertions, 0 deletions

diff --git a/arch/arm/plat-s5p/Makefile b/arch/arm/plat-s5p/Makefile
index 79f81e3..6a3e63a 100644
--- a/arch/arm/plat-s5p/Makefile
+++ b/arch/arm/plat-s5p/Makefile
@@ -18,6 +18,7 @@ obj-y				+= cpu.o
 obj-y				+= clock.o
 obj-y				+= irq.o
 obj-y				+= devs.o
+obj-y				+= bootmem.o
 obj-$(CONFIG_S5P_EXT_INT)	+= irq-eint.o
 obj-$(CONFIG_S5P_GPIO_INT)	+= irq-gpioint.o
 obj-$(CONFIG_S5P_SYSTEM_MMU)	+= sysmmu.o
diff --git a/arch/arm/plat-s5p/bootmem.c b/arch/arm/plat-s5p/bootmem.c
new file mode 100644
index 0000000..83acec8
--- /dev/null
+++ b/arch/arm/plat-s5p/bootmem.c
@@ -0,0 +1,221 @@
+/* linux/arch/arm/plat-s5p/bootmem.c
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * Bootmem helper functions
+ *
+ * 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.
+*/
+
+#include <linux/mm.h>
+#include <linux/bootmem.h>
+#include <linux/swap.h>
+#include <asm/setup.h>
+#include <linux/io.h>
+#include <mach/memory.h>
+#include <plat/media.h>
+
+static struct s3c_media_device media_devs[] = {
+#ifdef CONFIG_VIDEO_SAMSUNG_MEMSIZE_MFC0
+	{
+		.id = S3C_MDEV_MFC,
+		.name = "mfc",
+		.bank = 0,
+		.memsize = CONFIG_VIDEO_SAMSUNG_MEMSIZE_MFC0 * SZ_1K,
+		.paddr = 0,
+	},
+#endif
+
+#ifdef CONFIG_VIDEO_SAMSUNG_MEMSIZE_MFC1
+	{
+		.id = S3C_MDEV_MFC,
+		.name = "mfc",
+		.bank = 1,
+		.memsize = CONFIG_VIDEO_SAMSUNG_MEMSIZE_MFC1 * SZ_1K,
+		.paddr = 0,
+	},
+#endif
+
+#ifdef CONFIG_VIDEO_SAMSUNG_MEMSIZE_FIMC0
+	{
+		.id = S3C_MDEV_FIMC0,
+		.name = "fimc0",
+		.bank = 1,
+		.memsize = CONFIG_VIDEO_SAMSUNG_MEMSIZE_FIMC0 * SZ_1K,
+		.paddr = 0,
+	},
+#endif
+
+#ifdef CONFIG_VIDEO_SAMSUNG_MEMSIZE_FIMC1
+	{
+		.id = S3C_MDEV_FIMC1,
+		.name = "fimc1",
+		.bank = 1,
+		.memsize = CONFIG_VIDEO_SAMSUNG_MEMSIZE_FIMC1 * SZ_1K,
+		.paddr = 0,
+	},
+#endif
+
+#ifdef CONFIG_VIDEO_SAMSUNG_MEMSIZE_FIMC2
+	{
+		.id = S3C_MDEV_FIMC2,
+		.name = "fimc2",
+		.bank = 1,
+		.memsize = CONFIG_VIDEO_SAMSUNG_MEMSIZE_FIMC2 * SZ_1K,
+		.paddr = 0,
+	},
+#endif
+
+#ifdef CONFIG_VIDEO_SAMSUNG_MEMSIZE_TV
+	{
+		.id = S3C_MDEV_TV,
+		.name = "tv",
+		.bank = 0,
+		.memsize = CONFIG_VIDEO_SAMSUNG_MEMSIZE_TV * SZ_1K,
+		.paddr = 0,
+	},
+#endif
+
+#ifdef	CONFIG_ANDROID_PMEM_MEMSIZE_PMEM
+	/* pmem */
+	{
+		.id = S3C_MDEV_PMEM,
+		.name = "pmem",
+		.memsize = CONFIG_ANDROID_PMEM_MEMSIZE_PMEM * SZ_1K,
+		.paddr = 0,
+		.bank = 0, /* OneDRAM */
+	},
+#endif
+
+#ifdef CONFIG_ANDROID_PMEM_MEMSIZE_PMEM_GPU1
+	{
+		.id = S3C_MDEV_PMEM_GPU1,
+		.name = "pmem_gpu1",
+		.memsize = CONFIG_ANDROID_PMEM_MEMSIZE_PMEM_GPU1 * SZ_1K,
+		.paddr = 0,
+		.bank = 0, /* OneDRAM */
+	},
+	{
+		.id = S3C_MDEV_PMEM_ADSP,
+		.name = "pmem_adsp",
+		.memsize = CONFIG_ANDROID_PMEM_MEMSIZE_PMEM_ADSP * SZ_1K,
+		.paddr = 0,
+		.bank = 0, /* OneDRAM */
+	},
+#endif
+
+#ifdef CONFIG_VIDEO_SAMSUNG_MEMSIZE_JPEG
+	{
+		.id = S3C_MDEV_JPEG,
+		.name = "jpeg",
+		.bank = 0,
+		.memsize = CONFIG_VIDEO_SAMSUNG_MEMSIZE_JPEG * SZ_1K,
+		.paddr = 0,
+	},
+#endif
+
+#ifdef CONFIG_VIDEO_SAMSUNG_MEMSIZE_TEXSTREAM
+	{
+		.id = S3C_MDEV_TEXSTREAM,
+		.name = "texstream",
+		.bank = 1,
+		.memsize = CONFIG_VIDEO_SAMSUNG_MEMSIZE_TEXSTREAM * SZ_1K,
+		.paddr = 0,
+	},
+#endif
+
+#ifdef CONFIG_VIDEO_SAMSUNG_MEMSIZE_FIMD
+	{
+		.id = S3C_MDEV_FIMD,
+		.name = "fimd",
+		.bank = 1,
+		.memsize = CONFIG_VIDEO_SAMSUNG_MEMSIZE_FIMD * SZ_1K,
+		.paddr = 0,
+	},
+#endif
+};
+
+static struct s3c_media_device *s3c_get_media_device(int dev_id, int bank)
+{
+	struct s3c_media_device *mdev = NULL;
+	int i = 0, found = 0, nr_devs;
+	nr_devs = sizeof(media_devs) / sizeof(media_devs[0]);
+
+	if (dev_id < 0)
+		return NULL;
+
+	while (!found && (i < nr_devs)) {
+		mdev = &media_devs[i];
+		if (mdev->id == dev_id && mdev->bank == bank)
+			found = 1;
+		else
+			i++;
+	}
+
+	if (!found)
+		mdev = NULL;
+
+	return mdev;
+}
+
+dma_addr_t s3c_get_media_memory_bank(int dev_id, int bank)
+{
+	struct s3c_media_device *mdev;
+
+	mdev = s3c_get_media_device(dev_id, bank);
+	if (!mdev) {
+		printk(KERN_ERR "invalid media device\n");
+		return 0;
+	}
+
+	if (!mdev->paddr) {
+		printk(KERN_ERR "no memory for %s\n", mdev->name);
+		return 0;
+	}
+
+	return mdev->paddr;
+}
+EXPORT_SYMBOL(s3c_get_media_memory_bank);
+
+size_t s3c_get_media_memsize_bank(int dev_id, int bank)
+{
+	struct s3c_media_device *mdev;
+
+	mdev = s3c_get_media_device(dev_id, bank);
+	if (!mdev) {
+		printk(KERN_ERR "invalid media device\n");
+		return 0;
+	}
+
+	return mdev->memsize;
+}
+EXPORT_SYMBOL(s3c_get_media_memsize_bank);
+
+void s5pv210_reserve_bootmem(void)
+{
+	struct s3c_media_device *mdev;
+	int i, nr_devs;
+
+	nr_devs = sizeof(media_devs) / sizeof(media_devs[0]);
+	for (i = 0; i < nr_devs; i++) {
+		mdev = &media_devs[i];
+		if (mdev->memsize <= 0)
+			continue;
+
+		mdev->paddr = virt_to_phys(__alloc_bootmem(mdev->memsize,
+				PAGE_SIZE, meminfo.bank[mdev->bank].start));
+		printk(KERN_INFO "s5pv210: %lu bytes system memory reserved "
+			"for %s at 0x%08x\n", (unsigned long) mdev->memsize,
+			mdev->name, mdev->paddr);
+	}
+}
+
+/* FIXME: temporary implementation to avoid compile error */
+int dma_needs_bounce(struct device *dev, dma_addr_t addr, size_t size)
+{
+	return 0;
+}
+