Pstates Support in OCC

1. Initialize Pstates global parameters (G_proc_fmax, G_proc_fmin,
G_khz_per_pstate and G_proc_pmin from the OCC Pstate Parameter
Block)

2. When frequency config data packet is received and OCC is NOT
already in Active state:  Send IPC command to PGPE to set pState
clips to be wide open from min frequency to turbo
First verify min/max frequency from TMGT is within what
PGPE allows saved in G_proc_fmax and G_proc_fmin if not
within bounds trace and clip to G_proc_fmax/fmin)

3. Transition to active state:  Send IPC command to PGPE to start
pState protocol (give correct data for OCC vs OPAL in control of
Pstates) and if OPAL system update OPAL shared memory with Pstate
information.

4. amec_slv_freq_smh():  Send IPC command to PGPE to set requested
pState (PowerVM) or set clips (OPAL).

5. Address all the TODO/TEMP/#if 0 in amec_freq.c  either remove
or add RTC# for when it will be addressed

Change-Id: Ic323321b8c66945732a6b7345ad85d6f41a62edd
RTC: 130201
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/33704
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: Martha Broyles <mbroyles@us.ibm.com>
Reviewed-by: Andres A. Lugo-Reyes <aalugore@us.ibm.com>
Reviewed-by: Wael El-Essawy <welessa@us.ibm.com>

1 files changed, 45 insertions, 0 deletions

diff --git a/src/occ_405/pgpe/pgpe_interface.h b/src/occ_405/pgpe/pgpe_interface.h
new file mode 100644
index 0000000..a777f28
--- /dev/null
+++ b/src/occ_405/pgpe/pgpe_interface.h
@@ -0,0 +1,45 @@
+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: src/occ_405/pgpe/pgpe_interface.h $                           */
+/*                                                                        */
+/* OpenPOWER OnChipController Project                                     */
+/*                                                                        */
+/* Contributors Listed Below - COPYRIGHT 2011,2016                        */
+/* [+] International Business Machines Corp.                              */
+/*                                                                        */
+/*                                                                        */
+/* 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.                         */
+/*                                                                        */
+/* IBM_PROLOG_END_TAG                                                     */
+
+#ifndef _PGPE_INTERFACE_H_
+#define _PGPE_INTERFACE_H_
+
+#include "errl.h"
+
+errlHndl_t init_pgpe_ipcs(void);
+
+errlHndl_t pgpe_init_clips(void);
+errlHndl_t pgpe_init_pmcr(void);
+errlHndl_t pgpe_init_start_suspend(void);
+errlHndl_t pgpe_init_wof_control(void);
+errlHndl_t pgpe_init_wof_vfrt(void);
+
+errlHndl_t pgpe_widen_clip_ranges(void);
+errlHndl_t pgpe_clip_update(void);
+errlHndl_t pgpe_pmcr_set(void);
+errlHndl_t pgpe_start_suspend(uint8_t action);
+void pgpe_start_suspend_callback(void);
+
+#endif /* #ifndef _PGPE_INTERFACE_H_ */