qemu

FORK: QEMU emulator
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pnv_lpc.h (2936B)

      1 /*
      2  * QEMU PowerPC PowerNV LPC controller
      3  *
      4  * Copyright (c) 2016-2022, IBM Corporation.
      5  *
      6  * This library is free software; you can redistribute it and/or
      7  * modify it under the terms of the GNU Lesser General Public
      8  * License as published by the Free Software Foundation; either
      9  * version 2.1 of the License, or (at your option) any later version.
     10  *
     11  * This library is distributed in the hope that it will be useful,
     12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14  * Lesser General Public License for more details.
     15  *
     16  * You should have received a copy of the GNU Lesser General Public
     17  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
     18  */
     19 
     20 #ifndef PPC_PNV_LPC_H
     21 #define PPC_PNV_LPC_H
     22 
     23 #include "qom/object.h"
     24 
     25 #define TYPE_PNV_LPC "pnv-lpc"
     26 typedef struct PnvLpcClass PnvLpcClass;
     27 typedef struct PnvLpcController PnvLpcController;
     28 DECLARE_OBJ_CHECKERS(PnvLpcController, PnvLpcClass,
     29                      PNV_LPC, TYPE_PNV_LPC)
     30 #define TYPE_PNV8_LPC TYPE_PNV_LPC "-POWER8"
     31 DECLARE_INSTANCE_CHECKER(PnvLpcController, PNV8_LPC,
     32                          TYPE_PNV8_LPC)
     33 
     34 #define TYPE_PNV9_LPC TYPE_PNV_LPC "-POWER9"
     35 DECLARE_INSTANCE_CHECKER(PnvLpcController, PNV9_LPC,
     36                          TYPE_PNV9_LPC)
     37 
     38 #define TYPE_PNV10_LPC TYPE_PNV_LPC "-POWER10"
     39 DECLARE_INSTANCE_CHECKER(PnvLpcController, PNV10_LPC,
     40                          TYPE_PNV10_LPC)
     41 
     42 struct PnvLpcController {
     43     DeviceState parent;
     44 
     45     uint64_t eccb_stat_reg;
     46     uint32_t eccb_data_reg;
     47 
     48     /* OPB bus */
     49     MemoryRegion opb_mr;
     50     AddressSpace opb_as;
     51 
     52     /* ISA IO and Memory space */
     53     MemoryRegion isa_io;
     54     MemoryRegion isa_mem;
     55     MemoryRegion isa_fw;
     56 
     57     /* Windows from OPB to ISA (aliases) */
     58     MemoryRegion opb_isa_io;
     59     MemoryRegion opb_isa_mem;
     60     MemoryRegion opb_isa_fw;
     61 
     62     /* Registers */
     63     MemoryRegion lpc_hc_regs;
     64     MemoryRegion opb_master_regs;
     65 
     66     /* OPB Master LS registers */
     67     uint32_t opb_irq_route0;
     68     uint32_t opb_irq_route1;
     69     uint32_t opb_irq_stat;
     70     uint32_t opb_irq_mask;
     71     uint32_t opb_irq_pol;
     72     uint32_t opb_irq_input;
     73 
     74     /* LPC HC registers */
     75     uint32_t lpc_hc_fw_seg_idsel;
     76     uint32_t lpc_hc_fw_rd_acc_size;
     77     uint32_t lpc_hc_irqser_ctrl;
     78     uint32_t lpc_hc_irqmask;
     79     uint32_t lpc_hc_irqstat;
     80     uint32_t lpc_hc_error_addr;
     81 
     82     /* XSCOM registers */
     83     MemoryRegion xscom_regs;
     84 
     85     /* PSI to generate interrupts */
     86     qemu_irq psi_irq;
     87 };
     88 
     89 struct PnvLpcClass {
     90     DeviceClass parent_class;
     91 
     92     DeviceRealize parent_realize;
     93 };
     94 
     95 /*
     96  * Old compilers error on typdef forward declarations. Keep them happy.
     97  */
     98 struct PnvChip;
     99 
    100 ISABus *pnv_lpc_isa_create(PnvLpcController *lpc, bool use_cpld, Error **errp);
    101 int pnv_dt_lpc(struct PnvChip *chip, void *fdt, int root_offset,
    102                uint64_t lpcm_addr, uint64_t lpcm_size);
    103 
    104 #endif /* PPC_PNV_LPC_H */