static void
vc_mem_get_size(void)
{
#ifdef CONFIG_ARCH_BCM2708
mm_vc_mem_size = 256 * 1024 * 1024; // Static for now
#else
CHAL_IPC_HANDLE ipc_handle;
uint32_t wakeup_register;
// Get the videocore memory size from the IPC mailbox if not yet
// assigned.
if (mm_vc_mem_size == 0) {
ipc_handle = chal_ipc_config(NULL);
if (ipc_handle == NULL) {
LOG_ERR("%s: failed to get IPC handlle", __func__);
return;
}
chal_ipc_query_wakeup_vc(ipc_handle, &wakeup_register);
if ((wakeup_register & ~1) == 0) {
LOG_DBG("%s: videocore not yet loaded, skipping...",
__func__);
} else {
if (chal_ipc_read_mailbox(ipc_handle,
IPC_MAILBOX_ID_0,
&mm_vc_mem_size) !=
BCM_SUCCESS) {
LOG_ERR("%s: failed to read from IPC mailbox",
__func__);
}
}
}
#endif
}
static void vc_mem_get_size(void)
{
CHAL_IPC_HANDLE ipc_handle;
uint32_t wakeup_register;
mm_vc_mem_base &= 0x3fffffff;
mm_vc_mem_load &= 0x3fffffff;
/* Get the videocore memory size from the IPC mailbox if not yet
* assigned.
*/
if (mm_vc_mem_size == 0) {
ipc_handle = chal_ipc_config(NULL);
if (ipc_handle == NULL) {
LOG_ERR("%s: failed to get IPC handlle", __func__);
return;
}
chal_ipc_query_wakeup_vc(ipc_handle, &wakeup_register);
if ((wakeup_register & ~1) == 0) {
LOG_DBG("%s: videocore not yet loaded, skipping...",
__func__);
} else {
struct {
VC_DEBUG_HEADER_T header;
VC_DEBUG_PARAMS_T params;
} vc_dbg;
/*
* When we switch to using an Open Kernel
* (versus a Secure Kernel) we get the videocore memory
* size by reading the debug header.
*
* The debug Header & params are described using
* the VC_DEBUG_HEADER_T and VC_DEBUG_PARAMS_T
* structures.
* The VC_DEBUG_HEADER_T can be found in the firmware
* at an offset of VC_DEBUG_HEADER_OFFSET.
*/
if (vc_mem_access_mem
(0, &vc_dbg,
mm_vc_mem_load + VC_DEBUG_HEADER_OFFSET,
sizeof(vc_dbg)) == 0) {
if ((vc_dbg.header.magic ==
VC_DEBUG_HEADER_MAGIC)
&& (vc_dbg.header.paramSize >=
sizeof(vc_dbg.params))) {
/*
* Looks like a valid debug header.
* Grab the size.
*/
mm_vc_mem_size =
vc_dbg.params.vcMemSize;
}
}
if (mm_vc_mem_size == 0) {
if (chal_ipc_read_mailbox(ipc_handle,
IPC_MAILBOX_ID_0,
&mm_vc_mem_size) !=
BCM_SUCCESS) {
LOG_ERR
("%s: failed to read from IPC mailbox",
__func__);
}
}
}
}
}