C++ (Cpp) platform_get_smem_base_addr Examples

Example #1

unsigned
smem_read_alloc_entry_offset(smem_mem_type_t type, void *buf, int len,
			     int offset)
{
	struct smem_alloc_info *ainfo;
	unsigned *dest = buf;
	unsigned src;
	unsigned size = len;
	uint32_t smem_addr = 0;

#if DYNAMIC_SMEM
	smem_addr = smem_get_base_addr();
#else
	smem_addr = platform_get_smem_base_addr();
#endif

	smem = (struct smem *)smem_addr;

	if (((len & 0x3) != 0) || (((unsigned)buf & 0x3) != 0))
		return 1;

	if (type < SMEM_FIRST_VALID_TYPE || type > SMEM_LAST_VALID_TYPE)
		return 1;

	ainfo = &smem->alloc_info[type];
	if (readl(&ainfo->allocated) == 0)
		return 1;

	src = smem_addr + readl(&ainfo->offset) + offset;
	for (; size > 0; src += 4, size -= 4)
		*(dest++) = readl(src);

	return 0;
}

Example #2

File: platform.c Project: KortanZ/linux

/* Setup MMU mapping for this platform */
void platform_init_mmu_mappings(void)
{
	uint32_t i;
	uint32_t sections;
	uint32_t table_size = ARRAY_SIZE(mmu_section_table);
	uint32_t ddr_start = get_ddr_start();
	uint32_t smem_addr = platform_get_smem_base_addr();

	/*Mapping the ddr start address for loading the kernel about 90 MB*/
	sections = 90;
	while(sections--)
	{
		arm_mmu_map_section(ddr_start + sections * MB, ddr_start + sections* MB, SCRATCH_MEMORY);
	}


	/* Mapping the SMEM addr */
	arm_mmu_map_section(smem_addr, smem_addr, COMMON_MEMORY);

	/* Configure the MMU page entries for memory read from the
	   mmu_section_table */
	for (i = 0; i < table_size; i++)
	{
		sections = mmu_section_table[i].num_of_sections;

		while (sections--)
		{
			arm_mmu_map_section(mmu_section_table[i].paddress +
								sections * MB,
								mmu_section_table[i].vaddress +
								sections * MB,
								mmu_section_table[i].flags);
		}
	}
}

Example #3

/* buf MUST be 4byte aligned, and len MUST be a multiple of 8. */
unsigned smem_read_alloc_entry(smem_mem_type_t type, void *buf, int len)
{
	struct smem_alloc_info *ainfo;
	unsigned *dest = buf;
	unsigned src;
	unsigned size;
	uint32_t smem_addr = 0;

#if DYNAMIC_SMEM
	smem_addr = smem_get_base_addr();
#else
	smem_addr = platform_get_smem_base_addr();
#endif

	smem = (struct smem *)smem_addr;

	if (((len & 0x3) != 0) || (((unsigned)buf & 0x3) != 0))
		return 1;

	if (type < SMEM_FIRST_VALID_TYPE || type > SMEM_LAST_VALID_TYPE)
		return 1;

	/* TODO: Use smem spinlocks */
	ainfo = &smem->alloc_info[type];
	if (readl(&ainfo->allocated) == 0)
		return 1;

	size = readl(&ainfo->size);

	if (size < (unsigned)((len + 7) & ~0x00000007))
		return 1;

	src = smem_addr + readl(&ainfo->offset);
	for (; len > 0; src += 4, len -= 4)
		*(dest++) = readl(src);

	return 0;
}

Example #4

/* Return a pointer to smem_item with size */
void* smem_get_alloc_entry(smem_mem_type_t type, uint32_t* size)
{
	struct smem_alloc_info *ainfo = NULL;
	uint32_t smem_addr = 0;
	uint32_t base_ext = 0;
	uint32_t offset = 0;
	void *ret = NULL;

#if DYNAMIC_SMEM
	smem_addr = smem_get_base_addr();
#else
	smem_addr = platform_get_smem_base_addr();
#endif
	smem = (struct smem *)smem_addr;

	if (type < SMEM_FIRST_VALID_TYPE || type > SMEM_LAST_VALID_TYPE)
		return ret;

	ainfo = &smem->alloc_info[type];
	if (readl(&ainfo->allocated) == 0)
		return ret;

	*size = readl(&ainfo->size);
	base_ext = readl(&ainfo->base_ext);
	offset = readl(&ainfo->offset);

	if(base_ext)
	{
		ret = (void*)base_ext + offset;
	}
	else
	{
		ret = (void*) smem_addr + offset;
	}

	return ret;
}