You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
338 lines
9.5 KiB
338 lines
9.5 KiB
/*
|
|
* Copyright (C) 2010-2013 ARM Limited. All rights reserved.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
/**
|
|
* @file ump_arch.c
|
|
*
|
|
* UMP arch layer for UMP-UDD
|
|
*/
|
|
|
|
#include "ump.h"
|
|
#include "ump_arch.h"
|
|
#include <ump/ump_debug.h>
|
|
|
|
#include <ump/ump_uk_types.h>
|
|
#include "../os/ump_uku.h"
|
|
|
|
#include <cutils/log.h>
|
|
|
|
/** Pointer to an OS-Specific context that we should pass in _uku_ calls */
|
|
void *ump_uk_ctx = NULL;
|
|
|
|
/** Reference counting of ump_arch_open() and ump_arch_close(). */
|
|
static volatile int ump_ref_count = 0;
|
|
|
|
/** Lock for critical section in open/close */
|
|
_ump_osu_lock_t * ump_lock_arch = NULL;
|
|
|
|
ump_result ump_arch_open(void)
|
|
{
|
|
ump_result retval = UMP_OK;
|
|
|
|
_ump_osu_lock_auto_init( &ump_lock_arch, _UMP_OSU_LOCKFLAG_DEFAULT, 0, 0 );
|
|
|
|
/* Check that the lock was initialized */
|
|
if (NULL == ump_lock_arch)
|
|
{
|
|
UMP_DEBUG_PRINT(1, ("UMP: ump_arch_open() failed to init lock\n"));
|
|
return UMP_ERROR;
|
|
}
|
|
|
|
/* Attempt to obtain a lock */
|
|
if( _UMP_OSU_ERR_OK != _ump_osu_lock_wait( ump_lock_arch, _UMP_OSU_LOCKMODE_RW ) )
|
|
{
|
|
UMP_DEBUG_PRINT(1, ("UMP: ump_arch_open() failed to acquire lock\n"));
|
|
return UMP_ERROR;
|
|
}
|
|
|
|
/* ASSERT NEEDED */
|
|
UMP_DEBUG_ASSERT(0 <= ump_ref_count, ("UMP: Reference count invalid at _ump_base_arch_open()"));
|
|
ump_ref_count++;
|
|
|
|
if (1 == ump_ref_count)
|
|
{
|
|
/* We are the first, open the UMP device driver */
|
|
|
|
if (_UMP_OSU_ERR_OK != _ump_uku_open( &ump_uk_ctx ))
|
|
{
|
|
UMP_DEBUG_PRINT(1, ("UMP: ump_arch_open() failed to open UMP device driver\n"));
|
|
retval = UMP_ERROR;
|
|
ump_ref_count--;
|
|
}
|
|
}
|
|
|
|
/* Signal the lock so someone else can use it */
|
|
_ump_osu_lock_signal( ump_lock_arch, _UMP_OSU_LOCKMODE_RW );
|
|
|
|
return retval;
|
|
}
|
|
|
|
|
|
|
|
void ump_arch_close(void)
|
|
{
|
|
_ump_osu_lock_auto_init( &ump_lock_arch, _UMP_OSU_LOCKFLAG_DEFAULT, 0, 0 );
|
|
|
|
/* Check that the lock was initialized */
|
|
if(NULL == ump_lock_arch)
|
|
{
|
|
UMP_DEBUG_PRINT(1, ("UMP: ump_arch_close() failed to init lock\n"));
|
|
return;
|
|
}
|
|
|
|
/* Attempt to obtain a lock */
|
|
if( _UMP_OSU_ERR_OK != _ump_osu_lock_wait( ump_lock_arch, _UMP_OSU_LOCKMODE_RW ) )
|
|
{
|
|
UMP_DEBUG_PRINT(1, ("UMP: ump_arch_close() failed to acquire lock\n"));
|
|
return;
|
|
}
|
|
|
|
UMP_DEBUG_ASSERT(0 < ump_ref_count, ("UMP: ump_arch_close() called while no references exist"));
|
|
if (ump_ref_count > 0)
|
|
{
|
|
ump_ref_count--;
|
|
if (0 == ump_ref_count)
|
|
{
|
|
_ump_osu_errcode_t retval = _ump_uku_close(&ump_uk_ctx);
|
|
UMP_DEBUG_ASSERT(retval == _UMP_OSU_ERR_OK, ("UMP: Failed to close UMP interface"));
|
|
UMP_IGNORE(retval);
|
|
ump_uk_ctx = NULL;
|
|
_ump_osu_lock_signal( ump_lock_arch, _UMP_OSU_LOCKMODE_RW );
|
|
_ump_osu_lock_term( ump_lock_arch ); /* Not 100% thread safe, since another thread can already be waiting for this lock in ump_arch_open() */
|
|
ump_lock_arch = NULL;
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* Signal the lock so someone else can use it */
|
|
_ump_osu_lock_signal( ump_lock_arch, _UMP_OSU_LOCKMODE_RW );
|
|
}
|
|
|
|
|
|
|
|
ump_secure_id ump_arch_allocate(unsigned long * size, ump_alloc_constraints constraints)
|
|
{
|
|
_ump_uk_allocate_s call_arg;
|
|
|
|
if ( NULL == size )
|
|
{
|
|
return UMP_INVALID_SECURE_ID;
|
|
}
|
|
|
|
call_arg.ctx = ump_uk_ctx;
|
|
call_arg.secure_id = UMP_INVALID_SECURE_ID;
|
|
call_arg.size = *size;
|
|
#ifdef UMP_DEBUG_SKIP_CODE
|
|
/** Run-time ASSERTing that _ump_uk_api_version_s and ump_alloc_constraints are
|
|
* interchangable */
|
|
switch (constraints)
|
|
{
|
|
case UMP_REF_DRV_CONSTRAINT_NONE:
|
|
UMP_DEBUG_ASSERT( UMP_REF_DRV_UK_CONSTRAINT_NONE == constraints, ("ump_uk_alloc_constraints out of sync with ump_alloc_constraints") );
|
|
break;
|
|
case UMP_REF_DRV_CONSTRAINT_PHYSICALLY_LINEAR:
|
|
UMP_DEBUG_ASSERT( UMP_REF_DRV_UK_CONSTRAINT_PHYSICALLY_LINEAR == constraints, ("ump_uk_alloc_constraints out of sync with ump_alloc_constraints") );
|
|
break;
|
|
default:
|
|
UMP_DEBUG_ASSERT( 1, ("ump_uk_alloc_constraints out of sync with ump_alloc_constraints: %d unrecognized", constraints) );
|
|
break;
|
|
}
|
|
#endif
|
|
call_arg.constraints = (ump_uk_alloc_constraints)constraints;
|
|
|
|
if ( _UMP_OSU_ERR_OK != _ump_uku_allocate(&call_arg) )
|
|
{
|
|
return UMP_INVALID_SECURE_ID;
|
|
}
|
|
|
|
*size = call_arg.size;
|
|
|
|
UMP_DEBUG_PRINT(4, ("UMP: Allocated ID %u, size %ul", call_arg.secure_id, call_arg.size));
|
|
|
|
return call_arg.secure_id;
|
|
}
|
|
|
|
|
|
ump_secure_id ump_arch_ion_import(int ion_fd, unsigned long *size, ump_alloc_constraints constraints)
|
|
{
|
|
_ump_uk_ion_import_s call_arg;
|
|
|
|
call_arg.ctx = ump_uk_ctx;
|
|
call_arg.ion_fd = ion_fd;
|
|
call_arg.secure_id = UMP_INVALID_SECURE_ID;
|
|
call_arg.size = *size;
|
|
call_arg.constraints = (ump_uk_alloc_constraints)constraints;
|
|
|
|
UMP_DEBUG_PRINT(4, ("%s ion_fd=%d size=%x constraints=x", __func__, ion_fd, size, constraints));
|
|
|
|
if ( _UMP_OSU_ERR_OK != _ump_uku_ion_import(&call_arg) )
|
|
{
|
|
return UMP_INVALID_SECURE_ID;
|
|
}
|
|
|
|
*size = call_arg.size;
|
|
|
|
UMP_DEBUG_PRINT(4, ("%s Allocated ID %u, size %ul", __func__, call_arg.secure_id, call_arg.size));
|
|
|
|
return call_arg.secure_id;
|
|
}
|
|
|
|
|
|
unsigned long ump_arch_size_get(ump_secure_id secure_id)
|
|
{
|
|
_ump_uk_size_get_s dd_size_call_arg;
|
|
|
|
dd_size_call_arg.ctx = ump_uk_ctx;
|
|
dd_size_call_arg.secure_id = secure_id;
|
|
dd_size_call_arg.size = 0;
|
|
|
|
if (_UMP_OSU_ERR_OK == _ump_uku_size_get( &dd_size_call_arg ) )
|
|
{
|
|
return dd_size_call_arg.size;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
void ump_arch_reference_release(ump_secure_id secure_id)
|
|
{
|
|
_ump_uk_release_s dd_release_call_arg;
|
|
_ump_osu_errcode_t retval;
|
|
|
|
dd_release_call_arg.ctx = ump_uk_ctx;
|
|
dd_release_call_arg.secure_id = secure_id;
|
|
|
|
UMP_DEBUG_PRINT(4, ("UMP: Releasing ID %u", secure_id));
|
|
|
|
retval = _ump_uku_release( &dd_release_call_arg );
|
|
UMP_DEBUG_ASSERT(retval == _UMP_OSU_ERR_OK, ("UMP: Failed to release reference to UMP memory"));
|
|
UMP_IGNORE(retval);
|
|
}
|
|
|
|
|
|
void* ump_arch_map(ump_secure_id secure_id, unsigned long size, ump_cache_enabled cache, unsigned long *cookie_out)
|
|
{
|
|
_ump_uk_map_mem_s dd_map_call_arg;
|
|
|
|
UMP_DEBUG_ASSERT_POINTER( cookie_out );
|
|
|
|
dd_map_call_arg.ctx = ump_uk_ctx;
|
|
dd_map_call_arg.secure_id = secure_id;
|
|
dd_map_call_arg.size = size;
|
|
dd_map_call_arg.is_cached = (u32) (UMP_CACHE_ENABLE==cache);
|
|
|
|
if ( -1 == _ump_uku_map_mem( &dd_map_call_arg ) )
|
|
{
|
|
UMP_DEBUG_PRINT(4, ("UMP: Mapping failed for ID %u", secure_id));
|
|
return NULL;
|
|
}
|
|
|
|
UMP_DEBUG_PRINT(4, ("Mapped %u at 0x%08lx", secure_id, (unsigned long)dd_map_call_arg.mapping));
|
|
|
|
*cookie_out = dd_map_call_arg.cookie;
|
|
return dd_map_call_arg.mapping;
|
|
}
|
|
|
|
|
|
|
|
void ump_arch_unmap(void* mapping, unsigned long size, unsigned long cookie)
|
|
{
|
|
_ump_uk_unmap_mem_s dd_unmap_call_arg;
|
|
|
|
dd_unmap_call_arg.ctx = ump_uk_ctx;
|
|
dd_unmap_call_arg.mapping = mapping;
|
|
dd_unmap_call_arg.size = size;
|
|
dd_unmap_call_arg.cookie = cookie;
|
|
|
|
UMP_DEBUG_PRINT(4, ("Unmapping 0x%08lx", (unsigned long)mapping));
|
|
_ump_uku_unmap_mem( &dd_unmap_call_arg );
|
|
}
|
|
|
|
/** Memory synchronization - cache flushing of mapped memory */
|
|
ump_cache_enabled ump_arch_msync(ump_secure_id secure_id, void* mapping, unsigned long cookie, void * address, unsigned long size, ump_cpu_msync_op op)
|
|
{
|
|
_ump_uk_msync_s dd_msync_call_arg;
|
|
|
|
dd_msync_call_arg.ctx = ump_uk_ctx;
|
|
dd_msync_call_arg.mapping = mapping;
|
|
dd_msync_call_arg.address = address;
|
|
dd_msync_call_arg.size = size;
|
|
dd_msync_call_arg.op = (ump_uk_msync_op)op;
|
|
dd_msync_call_arg.cookie = cookie;
|
|
dd_msync_call_arg.secure_id = secure_id;
|
|
dd_msync_call_arg.is_cached = 0;
|
|
|
|
UMP_DEBUG_PRINT(4, ("Msync 0x%08lx", (unsigned long)mapping));
|
|
_ump_uku_msynch( &dd_msync_call_arg );
|
|
if ( 0==dd_msync_call_arg.is_cached )
|
|
{
|
|
UMP_DEBUG_PRINT(4, ("Trying to flush uncached UMP mem ID: %d", secure_id));
|
|
}
|
|
return (ump_cache_enabled)(dd_msync_call_arg.is_cached);
|
|
}
|
|
|
|
/** Cache operation control. Tell when cache maintenance operations start and end.
|
|
This will allow the kernel to merge cache operations togheter, thus making them faster */
|
|
int ump_arch_cache_operations_control(ump_cache_op_control op)
|
|
{
|
|
_ump_uk_cache_operations_control_s dd_cache_control_arg;
|
|
|
|
dd_cache_control_arg.op = (ump_uk_cache_op_control)op;
|
|
dd_cache_control_arg.ctx = ump_uk_ctx;
|
|
|
|
UMP_DEBUG_PRINT(4, ("Cache control op:%d",(u32)op ));
|
|
_ump_uku_cache_operations_control( &dd_cache_control_arg );
|
|
return 1; /* Always success */
|
|
}
|
|
|
|
int ump_arch_switch_hw_usage( ump_secure_id secure_id, ump_hw_usage new_user )
|
|
{
|
|
_ump_uk_switch_hw_usage_s dd_sitch_user_arg;
|
|
|
|
dd_sitch_user_arg.secure_id = secure_id;
|
|
dd_sitch_user_arg.new_user = (ump_uk_user)new_user;
|
|
dd_sitch_user_arg.ctx = ump_uk_ctx;
|
|
|
|
UMP_DEBUG_PRINT(4, ("Switch user UMP:%d User:%d",secure_id, (u32)new_user ));
|
|
_ump_uku_switch_hw_usage( &dd_sitch_user_arg );
|
|
return 1; /* Always success */
|
|
}
|
|
|
|
int ump_arch_lock( ump_secure_id secure_id, ump_lock_usage lock_usage )
|
|
{
|
|
_ump_uk_lock_s dd_lock_arg;
|
|
|
|
dd_lock_arg.ctx = ump_uk_ctx;
|
|
dd_lock_arg.secure_id = secure_id;
|
|
dd_lock_arg.lock_usage = (ump_uk_lock_usage) lock_usage;
|
|
|
|
UMP_DEBUG_PRINT(4, ("Lock UMP:%d ",secure_id));
|
|
_ump_uku_lock( &dd_lock_arg );
|
|
return 1; /* Always success */
|
|
}
|
|
|
|
int ump_arch_unlock( ump_secure_id secure_id )
|
|
{
|
|
_ump_uk_unlock_s dd_unlock_arg;
|
|
|
|
dd_unlock_arg.ctx = ump_uk_ctx;
|
|
dd_unlock_arg.secure_id = secure_id;
|
|
|
|
UMP_DEBUG_PRINT(4, ("Lock UMP:%d ",secure_id));
|
|
_ump_uku_unlock( &dd_unlock_arg );
|
|
return 1; /* Always success */
|
|
}
|
|
|