1 files changed, 154 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/functiontables.c b/drivers/gpu/drm/amd/powerplay/hwmgr/functiontables.c
new file mode 100644
index 000000000000..5abde8f6d108
--- /dev/null
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/functiontables.c
@@ -0,0 +1,154 @@
+/*
+ * Copyright 2015 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include "hwmgr.h"
+
+static int phm_run_table(struct pp_hwmgr *hwmgr,
+                         struct phm_runtime_table_header *rt_table,
+                         void *input,
+                         void *output,
+                         void *temp_storage)
+{
+        int result = 0;
+        phm_table_function *function;
+
+        for (function = rt_table->function_list; NULL != *function; function++) {
+                int tmp = (*function)(hwmgr, input, output, temp_storage, result);
+
+                if (tmp == PP_Result_TableImmediateExit)
+                        break;
+                if (tmp) {
+                        if (0 == result)
+                                result = tmp;
+                        if (rt_table->exit_error)
+                                break;
+                }
+        }
+
+        return result;
+}
+
+int phm_dispatch_table(struct pp_hwmgr *hwmgr,
+                       struct phm_runtime_table_header *rt_table,
+                       void *input, void *output)
+{
+        int result = 0;
+        void *temp_storage = NULL;
+
+        if (hwmgr == NULL || rt_table == NULL || rt_table->function_list == NULL) {
+                printk(KERN_ERR "[ powerplay ] Invalid Parameter!\n");
+                return 0; /*temp return ture because some function not implement on some asic */
+        }
+
+        if (0 != rt_table->storage_size) {
+                temp_storage = kzalloc(rt_table->storage_size, GFP_KERNEL);
+                if (temp_storage == NULL) {
+                        printk(KERN_ERR "[ powerplay ] Could not allocate table temporary storage\n");
+                        return -1;
+                }
+        }
+
+        result = phm_run_table(hwmgr, rt_table, input, output, temp_storage);
+
+        if (NULL != temp_storage)
+                kfree(temp_storage);
+
+        return result;
+}
+
+int phm_construct_table(struct pp_hwmgr *hwmgr,
+                        struct phm_master_table_header *master_table,
+                        struct phm_runtime_table_header *rt_table)
+{
+        uint32_t function_count = 0;
+        const struct phm_master_table_item *table_item;
+        uint32_t size;
+        phm_table_function *run_time_list;
+        phm_table_function *rtf;
+
+        if (hwmgr == NULL || master_table == NULL || rt_table == NULL) {
+                printk(KERN_ERR "[ powerplay ] Invalid Parameter!\n");
+                return -1;
+        }
+
+        for (table_item = master_table->master_list;
+                NULL != table_item->tableFunction; table_item++) {
+                if ((NULL == table_item->isFunctionNeededInRuntimeTable) ||
+                    (table_item->isFunctionNeededInRuntimeTable(hwmgr)))
+                        function_count++;
+        }
+
+        size = (function_count + 1) * sizeof(phm_table_function);
+        run_time_list = kzalloc(size, GFP_KERNEL);
+        if (NULL == run_time_list)
+                return -1;
+
+        rtf = run_time_list;
+        for (table_item = master_table->master_list;
+                NULL != table_item->tableFunction; table_item++) {
+                if ((rtf - run_time_list) > function_count) {
+                        printk(KERN_ERR "[ powerplay ] Check function results have changed\n");
+                        kfree(run_time_list);
+                        return -1;
+                }
+
+                if ((NULL == table_item->isFunctionNeededInRuntimeTable) ||
+                     (table_item->isFunctionNeededInRuntimeTable(hwmgr))) {
+                        *(rtf++) = table_item->tableFunction;
+                }
+        }
+
+        if ((rtf - run_time_list) > function_count) {
+                printk(KERN_ERR "[ powerplay ] Check function results have changed\n");
+                kfree(run_time_list);
+                return -1;
+        }
+
+        *rtf = NULL;
+        rt_table->function_list = run_time_list;
+        rt_table->exit_error = (0 != (master_table->flags & PHM_MasterTableFlag_ExitOnError));
+        rt_table->storage_size = master_table->storage_size;
+        return 0;
+}
+
+int phm_destroy_table(struct pp_hwmgr *hwmgr,
+                      struct phm_runtime_table_header *rt_table)
+{
+        if (hwmgr == NULL || rt_table == NULL) {
+                printk(KERN_ERR "[ powerplay ] Invalid Parameter\n");
+                return -1;
+        }
+
+        if (NULL == rt_table->function_list)
+                return 0;
+
+        kfree(rt_table->function_list);
+
+        rt_table->function_list = NULL;
+        rt_table->storage_size = 0;
+        rt_table->exit_error = false;
+
+        return 0;
+}