p9_pm_set_homer_bar for L1

Fixed pba_init/bar_config dependencies as they are merged in master now
Added wrapper file, indentations and other changes.
Rebased with master
Updates based on gerrit feedbacks (removal of extern "c", removal of enums)
More updates on gerrit feedback

Change-Id: I2a167ab556375d82df8ca73ab3023f1dcf9f0dad
RTC: 138601
Reviewed-on: http://gfw160.aus.stglabs.ibm.com:8080/gerrit/21584
Tested-by: Jenkins Server
Reviewed-by: Bilicon Patil <bilpatil@in.ibm.com>
Reviewed-by: Gregory S. Still <stillgs@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>

1 files changed, 241 insertions, 0 deletions

diff --git a/src/import/chips/p9/procedures/hwp/pm/p9_pm_set_homer_bar.C b/src/import/chips/p9/procedures/hwp/pm/p9_pm_set_homer_bar.C
new file mode 100644
index 000000000..282cc4962
--- /dev/null
+++ b/src/import/chips/p9/procedures/hwp/pm/p9_pm_set_homer_bar.C
@@ -0,0 +1,241 @@
+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: chips/p9/procedures/ipl/hwp/p9_pm_set_homer_bar.C $           */
+/*                                                                        */
+/* IBM CONFIDENTIAL                                                       */
+/*                                                                        */
+/* EKB Project                                                            */
+/*                                                                        */
+/* COPYRIGHT 2015                                                         */
+/* [+] International Business Machines Corp.                              */
+/*                                                                        */
+/*                                                                        */
+/* The source code for this program is not published or otherwise         */
+/* divested of its trade secrets, irrespective of what has been           */
+/* deposited with the U.S. Copyright Office.                              */
+/*                                                                        */
+/* IBM_PROLOG_END_TAG                                                     */
+/// @file p9_pm_set_homer_bar.C
+/// @brief Setup a PBABAR to locate the HOMER region for the OCC complex
+
+// *HWP HWP Owner       : Amit Kumar <akumar3@us.ibm.com>
+// *HWP Backup HWP Owner: Greg Still <stillgs@us.ibm.com>
+// *HWP FW Owner        : Bilicon Patil <bilpatil@in.ibm.com>
+// *HWP Team            : PM
+// *HWP Level           : 1
+// *HWP Consumed by     : HS
+///
+///
+/// High-level procedure flow:
+/// \verbatim
+///
+///     Address and size of HOMER for the target (chip) is passed based on
+///     where the caller has allocated this memory for this target.
+///
+///     The Base Address and a size mask for the region is passed.  This is
+///     used to establish the PBA BAR and mask hardware to set the legal
+///     bounds for OCc complex accesses.
+///
+///     The BAR defines address bits 14:43 in natural bit alignment (eg no
+///     shifting)
+///
+///     The Size (in MB) of the region where region is located.
+///         If not a power of two value, the value will be rounded up to the
+///         next power of 2 for setting the hardware mask
+///
+///         If 0 is defined and the BAR is also defined as 0, then the BAR
+///         is set (to 0) but no image accessing is done as this is considered
+///         a BAR reset condition.
+///
+///         If 0 is defined and the BAR is NOT 0, an error is returned as this
+///         is defining a zero sized, real region.
+///
+///     Flow (given BAR and Size are ok per the above)
+///        Check that passed address is within the 56 bit real address range
+///        Check that image address + image size does not extend past the 56 bit
+///            boundary
+///
+///        Call p9_pba_bar_config to set up PBA BAR 0 with the address and
+///            size of the HOMER region as passed via calling parameters
+///         i_mem_bar and i_mem_mask.
+///
+///  Procedure Prereq:
+///     - HOMER memory region has been allocated.
+///
+///  CQ Class:  power_management
+/// \endverbatim
+///
+//-------------------------------------------------------------------------------
+
+
+// ------------------------------------------------------------------------------
+// Includes
+// ------------------------------------------------------------------------------
+#include <fapi2.H>
+#include "p9_misc_scom_addresses.H"
+#include "p9_pm_set_homer_bar.H"
+#include "p9_pm.H"
+#include "p9_pm_pba_init.H"
+#include "p9_pm_pba_bar_config.H"
+
+
+#if 0
+// ------------------------------------------------------------------------------
+// Constant definitions
+// ------------------------------------------------------------------------------
+
+enum STOPGPE_IMG_LOC
+  {
+    STOPGPE_MEMORY  = 0x0,
+    STOPGPE_L3      = 0x1,
+    STOPGPE_SRAM    = 0x2
+  };
+
+// The value here will yield the appropriate nibble for accessing the PowerBus
+
+enum PBA_BARS
+  {
+    PBA_BAR0    = 0x0,
+    PBA_BAR1    = 0x1,
+    PBA_BAR2    = 0x2,
+    PBA_BAR3    = 0x3
+  };
+
+enum PBA_SLAVES
+  {
+    PBA_SLAVE0    = 0x0,
+    PBA_SLAVE1    = 0x1,
+    PBA_SLAVE2    = 0x2,
+    PBA_SLAVE3    = 0x3
+  };
+#endif
+
+
+// ------------------------------------------------------------------------------
+// Function definitions
+// ------------------------------------------------------------------------------
+
+
+/// \param[in] i_target     Procesor Chip target
+/// \param[in] i_mem_bar    Base address of the region where image is located
+/// \param[in] i_mem_size   Size (in MB) of the region where image is located
+///                         if not a power of two value, the value will be
+///                         rounded up to the next power of 2 for setting the
+///                         hardware mask.  The value of 0 is only legal if
+///                         i_mem_bar is also 0;  else an error is indicated.
+///
+fapi2::ReturnCode
+p9_pm_set_homer_bar(  const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
+		      const uint64_t i_mem_bar,
+		      const uint64_t i_mem_size)
+{
+
+  fapi2::ReturnCode    l_rc;
+#if 0
+  uint32_t            l_ecmdRc = 0;
+  ecmdDataBufferBase  data(64);
+
+  uint64_t            image_address;
+  uint64_t            image_size;
+  uint64_t            region_masked_address;
+
+  pba_slvctln_t       ps;                         // PBA Slave
+
+  // Hardcoded use of PBA BAR and Slave
+  const uint32_t      pba_bar = PBA_BAR2;
+  const uint32_t      pba_bar_slw = PBA_SLW_BAR2;
+  const uint32_t      pba_slave = PBA_SLAVE2;
+
+  const uint64_t      slw_pba_cmd_scope = 0x2;    // Set to SYSTEM
+
+  const uint32_t      occ_pba_bar = PBA_BAR0;
+  uint64_t            occ_mem_bar =  0x0;
+  const uint64_t      occ_mem_size = 0x4;         // in MB
+  const uint64_t      occ_pba_cmd_scope = 0x0;    // Set to NODAL
+
+
+  // -----------------------------------------------------------------
+  do
+    {
+      FAPI2_INF("Entering p9_pm_set_homer_bar ...");
+
+      // Check if this is a BAR reset case.
+      if (i_mem_size == 0)
+	{
+	  if(i_mem_bar != 0)
+	    {
+	      FAPI2_ERR("HOMER Size is 0 but BAR is non-zero:  0x%16llx", i_mem_bar );
+	      const fapi2::Target& CHIP = i_target;
+	      const uint32_t&      MEMSIZE = i_mem_size;
+	      const uint64_t&      MEMBAR = i_mem_bar;
+	      FAPI2_SET_HWP_ERROR(rc, RC_PROCPM_HOMER_BAR_SIZE0_ERROR);
+	      break;
+	    }
+	  else
+	    {
+	      FAPI2_DBG("Calling pba_bar_config to BAR %x Addr: 0x%16llX  Size: 0x%16llX",
+			pba_bar, i_mem_bar, i_mem_size);
+
+	      // Set the PBA BAR for HOMER
+	      FAPI2_EXEC_HWP(rc, p8_pba_bar_config, i_target,
+			     pba_bar,
+			     i_mem_bar,
+			     i_mem_size,
+			     slw_pba_cmd_scope);
+
+	      // No rc check is made as we're exiting anyway.
+
+	      break;
+	    }
+	}
+
+
+      // Check that the image address passed is within the memory region that
+      // is also passed.
+      //
+      // The PBA Mask indicates which bits from 23:43 (1MB grandularity) are
+      // enabled to be passed from the OCI addresses.  Inverting this mask
+      // indicates which address bits are going to come from the PBA BAR value.
+      // The image address (the starting address) must match these post mask bits
+      // to be resident in the range.
+      //
+      // Starting bit number: 64 bit Big Endian
+      //                                          12223344
+      //                                          60482604
+      // region_inverted_mask = i_mem_mask ^ BAR_MASK_LIMIT;  // XOR
+
+      // Set bits 14:22 as these are unconditional address bits
+      //region_inverted_mask = region_inverted_mask | BAR_ADDR_UNMASKED;
+      //computed_image_address = region_inverted_mask && image_address;
+      // Need to AND the address
+      //if (computed_image_address != i_mem_bar )
+      //{
+      //    FAPI2_ERR("SLW image address check failure. ");
+      //    FAPI2_SET_HWP_ERROR(rc, RC_PROCPM_POREBAR_IMAGE_ADDR_ERROR);
+      //    break;
+      //}
+
+      FAPI2_DBG("Calling pba_bar_config to BAR %x Addr: 0x%16llX  Size: 0x%16llX",
+		pba_bar, i_mem_bar, i_mem_size);
+
+      // Set the PBA BAR for the SLW region
+      FAPI2_EXEC_HWP(rc, p9_pba_bar_config, i_target,
+		     pba_bar,
+		     i_mem_bar,
+		     i_mem_size,
+		     slw_pba_cmd_scope);
+
+      if(rc)
+	{
+	  break;
+	}
+
+
+    }
+  while (0);
+
+#endif
+  l_rc = fapi2::FAPI2_RC_SUCCESS;
+  return l_rc;
+}