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/*
* Support for Intel Camera Imaging ISP subsystem.
* Copyright (c) 2015-2017, Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*/
#include <type_support.h>
#include <system_types.h>
#include <assert_support.h>
#include <memory_access.h>
#include <ia_css_env.h>
#include <hrt/hive_isp_css_mm_hrt.h>
const hrt_vaddress mmgr_NULL = (hrt_vaddress)0;
const hrt_vaddress mmgr_EXCEPTION = (hrt_vaddress)-1;
hrt_vaddress
mmgr_malloc(const size_t size)
{
return mmgr_alloc_attr(size, 0);
}
hrt_vaddress mmgr_alloc_attr(const size_t size, const uint16_t attrs)
{
u16 masked_attrs = attrs & MMGR_ATTRIBUTE_MASK;
WARN_ON(attrs & MMGR_ATTRIBUTE_CONTIGUOUS);
if (masked_attrs & MMGR_ATTRIBUTE_CLEARED) {
if (masked_attrs & MMGR_ATTRIBUTE_CACHED)
return (ia_css_ptr) hrt_isp_css_mm_calloc_cached(size);
else
return (ia_css_ptr) hrt_isp_css_mm_calloc(size);
} else {
if (masked_attrs & MMGR_ATTRIBUTE_CACHED)
return (ia_css_ptr) hrt_isp_css_mm_alloc_cached(size);
else
return (ia_css_ptr) hrt_isp_css_mm_alloc(size);
}
}
hrt_vaddress
mmgr_calloc(const size_t N, const size_t size)
{
return mmgr_alloc_attr(size * N, MMGR_ATTRIBUTE_CLEARED);
}
void mmgr_clear(hrt_vaddress vaddr, const size_t size)
{
if (vaddr)
hmm_set(vaddr, 0, size);
}
void mmgr_load(const hrt_vaddress vaddr, void *data, const size_t size)
{
if (vaddr && data)
hmm_load(vaddr, data, size);
}
void
mmgr_store(const hrt_vaddress vaddr, const void *data, const size_t size)
{
if (vaddr && data)
hmm_store(vaddr, data, size);
}
hrt_vaddress
mmgr_mmap(const void __user *ptr, const size_t size,
u16 attribute, void *context)
{
struct hrt_userbuffer_attr *userbuffer_attr = context;
return hrt_isp_css_mm_alloc_user_ptr(
size, ptr, userbuffer_attr->pgnr,
userbuffer_attr->type,
attribute & HRT_BUF_FLAG_CACHED);
}
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