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path: root/drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/rmgr/src/rmgr_vbuf.c
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Diffstat (limited to 'drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/rmgr/src/rmgr_vbuf.c')
-rw-r--r--drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/rmgr/src/rmgr_vbuf.c330
1 files changed, 0 insertions, 330 deletions
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/rmgr/src/rmgr_vbuf.c b/drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/rmgr/src/rmgr_vbuf.c
deleted file mode 100644
index a4d8a48f95ba..000000000000
--- a/drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/rmgr/src/rmgr_vbuf.c
+++ /dev/null
@@ -1,330 +0,0 @@
-/*
- * Support for Intel Camera Imaging ISP subsystem.
- * Copyright (c) 2010-2015, 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 "ia_css_rmgr.h"
-
-#include <type_support.h>
-#include <assert_support.h>
-#include <platform_support.h> /* memset */
-#include <memory_access.h> /* mmmgr_malloc, mhmm_free */
-#include <ia_css_debug.h>
-
-/*
- * @brief VBUF resource handles
- */
-#define NUM_HANDLES 1000
-static struct ia_css_rmgr_vbuf_handle handle_table[NUM_HANDLES];
-
-/*
- * @brief VBUF resource pool - refpool
- */
-static struct ia_css_rmgr_vbuf_pool refpool = {
- false, /* copy_on_write */
- false, /* recycle */
- 0, /* size */
- 0, /* index */
- NULL, /* handles */
-};
-
-/*
- * @brief VBUF resource pool - writepool
- */
-static struct ia_css_rmgr_vbuf_pool writepool = {
- true, /* copy_on_write */
- false, /* recycle */
- 0, /* size */
- 0, /* index */
- NULL, /* handles */
-};
-
-/*
- * @brief VBUF resource pool - hmmbufferpool
- */
-static struct ia_css_rmgr_vbuf_pool hmmbufferpool = {
- true, /* copy_on_write */
- true, /* recycle */
- 32, /* size */
- 0, /* index */
- NULL, /* handles */
-};
-
-struct ia_css_rmgr_vbuf_pool *vbuf_ref = &refpool;
-struct ia_css_rmgr_vbuf_pool *vbuf_write = &writepool;
-struct ia_css_rmgr_vbuf_pool *hmm_buffer_pool = &hmmbufferpool;
-
-/*
- * @brief Initialize the reference count (host, vbuf)
- */
-static void rmgr_refcount_init_vbuf(void)
-{
- /* initialize the refcount table */
- memset(&handle_table, 0, sizeof(handle_table));
-}
-
-/*
- * @brief Retain the reference count for a handle (host, vbuf)
- *
- * @param handle The pointer to the handle
- */
-void ia_css_rmgr_refcount_retain_vbuf(struct ia_css_rmgr_vbuf_handle **handle)
-{
- int i;
- struct ia_css_rmgr_vbuf_handle *h;
- if ((handle == NULL) || (*handle == NULL)) {
- IA_CSS_LOG("Invalid inputs");
- return;
- }
- /* new vbuf to count on */
- if ((*handle)->count == 0) {
- h = *handle;
- *handle = NULL;
- for (i = 0; i < NUM_HANDLES; i++) {
- if (handle_table[i].count == 0) {
- *handle = &handle_table[i];
- break;
- }
- }
- /* if the loop dus not break and *handle == NULL
- this is an error handle and report it.
- */
- if (*handle == NULL) {
- ia_css_debug_dtrace(IA_CSS_DEBUG_ERROR,
- "ia_css_i_host_refcount_retain_vbuf() failed to find empty slot!\n");
- return;
- }
- (*handle)->vptr = h->vptr;
- (*handle)->size = h->size;
- }
- (*handle)->count++;
-}
-
-/*
- * @brief Release the reference count for a handle (host, vbuf)
- *
- * @param handle The pointer to the handle
- */
-void ia_css_rmgr_refcount_release_vbuf(struct ia_css_rmgr_vbuf_handle **handle)
-{
- if ((handle == NULL) || ((*handle) == NULL) || (((*handle)->count) == 0)) {
- ia_css_debug_dtrace(IA_CSS_DEBUG_ERROR,
- "ia_css_rmgr_refcount_release_vbuf() invalid arguments!\n");
- return;
- }
- /* decrease reference count */
- (*handle)->count--;
- /* remove from admin */
- if ((*handle)->count == 0) {
- (*handle)->vptr = 0x0;
- (*handle)->size = 0;
- *handle = NULL;
- }
-}
-
-/*
- * @brief Initialize the resource pool (host, vbuf)
- *
- * @param pool The pointer to the pool
- */
-enum ia_css_err ia_css_rmgr_init_vbuf(struct ia_css_rmgr_vbuf_pool *pool)
-{
- enum ia_css_err err = IA_CSS_SUCCESS;
- size_t bytes_needed;
- rmgr_refcount_init_vbuf();
- assert(pool != NULL);
- if (pool == NULL)
- return IA_CSS_ERR_INVALID_ARGUMENTS;
- /* initialize the recycle pool if used */
- if (pool->recycle && pool->size) {
- /* allocate memory for storing the handles */
- bytes_needed =
- sizeof(void *) *
- pool->size;
- pool->handles = sh_css_malloc(bytes_needed);
- if (pool->handles != NULL)
- memset(pool->handles, 0, bytes_needed);
- else
- err = IA_CSS_ERR_CANNOT_ALLOCATE_MEMORY;
- } else {
- /* just in case, set the size to 0 */
- pool->size = 0;
- pool->handles = NULL;
- }
- return err;
-}
-
-/*
- * @brief Uninitialize the resource pool (host, vbuf)
- *
- * @param pool The pointer to the pool
- */
-void ia_css_rmgr_uninit_vbuf(struct ia_css_rmgr_vbuf_pool *pool)
-{
- uint32_t i;
- ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE, "ia_css_rmgr_uninit_vbuf()\n");
- if (pool == NULL) {
- ia_css_debug_dtrace(IA_CSS_DEBUG_ERROR, "ia_css_rmgr_uninit_vbuf(): NULL argument\n");
- return;
- }
- if (pool->handles != NULL) {
- /* free the hmm buffers */
- for (i = 0; i < pool->size; i++) {
- if (pool->handles[i] != NULL) {
- ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE,
- " freeing/releasing %x (count=%d)\n",
- pool->handles[i]->vptr,
- pool->handles[i]->count);
- /* free memory */
- hmm_free(pool->handles[i]->vptr);
- /* remove from refcount admin */
- ia_css_rmgr_refcount_release_vbuf(
- &pool->handles[i]);
- }
- }
- /* now free the pool handles list */
- sh_css_free(pool->handles);
- pool->handles = NULL;
- }
-}
-
-/*
- * @brief Push a handle to the pool
- *
- * @param pool The pointer to the pool
- * @param handle The pointer to the handle
- */
-static
-void rmgr_push_handle(struct ia_css_rmgr_vbuf_pool *pool,
- struct ia_css_rmgr_vbuf_handle **handle)
-{
- uint32_t i;
- bool succes = false;
- assert(pool != NULL);
- assert(pool->recycle);
- assert(pool->handles != NULL);
- assert(handle != NULL);
- for (i = 0; i < pool->size; i++) {
- if (pool->handles[i] == NULL) {
- ia_css_rmgr_refcount_retain_vbuf(handle);
- pool->handles[i] = *handle;
- succes = true;
- break;
- }
- }
- assert(succes);
-}
-
-/*
- * @brief Pop a handle from the pool
- *
- * @param pool The pointer to the pool
- * @param handle The pointer to the handle
- */
-static
-void rmgr_pop_handle(struct ia_css_rmgr_vbuf_pool *pool,
- struct ia_css_rmgr_vbuf_handle **handle)
-{
- uint32_t i;
- bool succes = false;
- assert(pool != NULL);
- assert(pool->recycle);
- assert(pool->handles != NULL);
- assert(handle != NULL);
- assert(*handle != NULL);
- for (i = 0; i < pool->size; i++) {
- if ((pool->handles[i] != NULL) &&
- (pool->handles[i]->size == (*handle)->size)) {
- *handle = pool->handles[i];
- pool->handles[i] = NULL;
- /* dont release, we are returning it...
- ia_css_rmgr_refcount_release_vbuf(handle); */
- succes = true;
- break;
- }
- }
-}
-
-/*
- * @brief Acquire a handle from the pool (host, vbuf)
- *
- * @param pool The pointer to the pool
- * @param handle The pointer to the handle
- */
-void ia_css_rmgr_acq_vbuf(struct ia_css_rmgr_vbuf_pool *pool,
- struct ia_css_rmgr_vbuf_handle **handle)
-{
- struct ia_css_rmgr_vbuf_handle h;
-
- if ((pool == NULL) || (handle == NULL) || (*handle == NULL)) {
- IA_CSS_LOG("Invalid inputs");
- return;
- }
-
- if (pool->copy_on_write) {
- /* only one reference, reuse (no new retain) */
- if ((*handle)->count == 1)
- return;
- /* more than one reference, release current buffer */
- if ((*handle)->count > 1) {
- /* store current values */
- h.vptr = 0x0;
- h.size = (*handle)->size;
- /* release ref to current buffer */
- ia_css_rmgr_refcount_release_vbuf(handle);
- *handle = &h;
- }
- /* get new buffer for needed size */
- if ((*handle)->vptr == 0x0) {
- if (pool->recycle) {
- /* try and pop from pool */
- rmgr_pop_handle(pool, handle);
- }
- if ((*handle)->vptr == 0x0) {
- /* we need to allocate */
- (*handle)->vptr = mmgr_malloc((*handle)->size);
- } else {
- /* we popped a buffer */
- return;
- }
- }
- }
- /* Note that handle will change to an internally maintained one */
- ia_css_rmgr_refcount_retain_vbuf(handle);
-}
-
-/*
- * @brief Release a handle to the pool (host, vbuf)
- *
- * @param pool The pointer to the pool
- * @param handle The pointer to the handle
- */
-void ia_css_rmgr_rel_vbuf(struct ia_css_rmgr_vbuf_pool *pool,
- struct ia_css_rmgr_vbuf_handle **handle)
-{
- if ((pool == NULL) || (handle == NULL) || (*handle == NULL)) {
- IA_CSS_LOG("Invalid inputs");
- return;
- }
- /* release the handle */
- if ((*handle)->count == 1) {
- if (!pool->recycle) {
- /* non recycling pool, free mem */
- hmm_free((*handle)->vptr);
- } else {
- /* recycle to pool */
- rmgr_push_handle(pool, handle);
- }
- }
- ia_css_rmgr_refcount_release_vbuf(handle);
- *handle = NULL;
-}
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