blob: 9ef0c1823f4c6dba0b9a59e795a1f470b5f5bc52 [file] [log] [blame]
/*
* Copyright (c) 2009, Google Inc.
* All rights reserved.
*
* Copyright (c) 2014-2015, The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <debug.h>
#include <reg.h>
#include <sys/types.h>
#include <platform/iomap.h>
#include <board.h>
#include "smem.h"
static struct smem *smem;
const char *hw_platform[] = {
[HW_PLATFORM_UNKNOWN] = "Unknown",
[HW_PLATFORM_SURF] = "Surf",
[HW_PLATFORM_FFA] = "FFA",
[HW_PLATFORM_FLUID] = "Fluid",
[HW_PLATFORM_SVLTE] = "SVLTE",
[HW_PLATFORM_MTP_MDM] = "MDM_MTP_NO_DISPLAY",
[HW_PLATFORM_MTP] = "MTP",
[HW_PLATFORM_RCM] = "RCM",
[HW_PLATFORM_LIQUID] = "Liquid",
[HW_PLATFORM_DRAGON] = "Dragon",
[HW_PLATFORM_QRD] = "QRD",
[HW_PLATFORM_HRD] = "HRD",
[HW_PLATFORM_DTV] = "DTV",
[HW_PLATFORM_STP] = "STP",
[HW_PLATFORM_SBC] = "SBC",
};
/* DYNAMIC SMEM REGION feature enables LK to dynamically
* read the SMEM addr info from TCSR register or IMEM location.
* The first word read, if indicates a MAGIC number, then
* Dynamic SMEM is assumed to be enabled. Read the remaining
* SMEM info for SMEM Size and Phy_addr from the other bytes.
*/
#if DYNAMIC_SMEM
uint32_t smem_get_base_addr()
{
struct smem_addr_info *smem_info = NULL;
smem_info = (struct smem_addr_info *) SMEM_TARG_INFO_ADDR;
if(smem_info && (smem_info->identifier == SMEM_TARGET_INFO_IDENTIFIER))
return smem_info->phy_addr;
else
return MSM_SHARED_BASE;
}
#endif
/* 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;
}
/* 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;
}
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;
}
size_t smem_get_hw_platform_name(void *buf, uint32 buf_size)
{
uint32 hw_id;
if (buf == NULL) {
dprintf(CRITICAL, "ERROR: buf is NULL\n");
return 1;
}
hw_id = board_hardware_id();
if (buf_size < strlen(hw_platform[hw_id]) + 1)
return 1;
return snprintf(buf, strlen(hw_platform[hw_id]) + 1,
"%s\n", hw_platform[hw_id]);
}