xref: /openbmc/qemu/include/hw/ppc/xive2.h (revision 90f9e35b)
1 /*
2  * QEMU PowerPC XIVE2 interrupt controller model  (POWER10)
3  *
4  * Copyright (c) 2019-2022, IBM Corporation.
5  *
6  * This code is licensed under the GPL version 2 or later. See the
7  * COPYING file in the top-level directory.
8  *
9  */
10 
11 #ifndef PPC_XIVE2_H
12 #define PPC_XIVE2_H
13 
14 #include "hw/ppc/xive2_regs.h"
15 
16 /*
17  * XIVE2 Router (POWER10)
18  */
19 typedef struct Xive2Router {
20     SysBusDevice    parent;
21 
22     XiveFabric *xfb;
23 } Xive2Router;
24 
25 #define TYPE_XIVE2_ROUTER "xive2-router"
26 OBJECT_DECLARE_TYPE(Xive2Router, Xive2RouterClass, XIVE2_ROUTER);
27 
28 /*
29  * Configuration flags
30  */
31 
32 #define XIVE2_GEN1_TIMA_OS      0x00000001
33 #define XIVE2_VP_SAVE_RESTORE   0x00000002
34 #define XIVE2_THREADID_8BITS    0x00000004
35 
36 typedef struct Xive2RouterClass {
37     SysBusDeviceClass parent;
38 
39     /* XIVE table accessors */
40     int (*get_eas)(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
41                    Xive2Eas *eas);
42     int (*get_pq)(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
43                   uint8_t *pq);
44     int (*set_pq)(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
45                   uint8_t *pq);
46     int (*get_end)(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
47                    Xive2End *end);
48     int (*write_end)(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
49                      Xive2End *end, uint8_t word_number);
50     int (*get_nvp)(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
51                    Xive2Nvp *nvp);
52     int (*write_nvp)(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
53                      Xive2Nvp *nvp, uint8_t word_number);
54     uint8_t (*get_block_id)(Xive2Router *xrtr);
55     uint32_t (*get_config)(Xive2Router *xrtr);
56 } Xive2RouterClass;
57 
58 int xive2_router_get_eas(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
59                         Xive2Eas *eas);
60 int xive2_router_get_end(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
61                         Xive2End *end);
62 int xive2_router_write_end(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
63                           Xive2End *end, uint8_t word_number);
64 int xive2_router_get_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
65                         Xive2Nvp *nvp);
66 int xive2_router_write_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
67                           Xive2Nvp *nvp, uint8_t word_number);
68 uint32_t xive2_router_get_config(Xive2Router *xrtr);
69 
70 void xive2_router_notify(XiveNotifier *xn, uint32_t lisn, bool pq_checked);
71 
72 /*
73  * XIVE2 Presenter (POWER10)
74  */
75 
76 int xive2_presenter_tctx_match(XivePresenter *xptr, XiveTCTX *tctx,
77                                uint8_t format,
78                                uint8_t nvt_blk, uint32_t nvt_idx,
79                                bool cam_ignore, uint32_t logic_serv);
80 
81 /*
82  * XIVE2 END ESBs  (POWER10)
83  */
84 
85 #define TYPE_XIVE2_END_SOURCE "xive2-end-source"
86 OBJECT_DECLARE_SIMPLE_TYPE(Xive2EndSource, XIVE2_END_SOURCE)
87 
88 typedef struct Xive2EndSource {
89     DeviceState parent;
90 
91     uint32_t        nr_ends;
92 
93     /* ESB memory region */
94     uint32_t        esb_shift;
95     MemoryRegion    esb_mmio;
96 
97     Xive2Router     *xrtr;
98 } Xive2EndSource;
99 
100 /*
101  * XIVE2 Thread Interrupt Management Area (POWER10)
102  */
103 
104 void xive2_tm_push_os_ctx(XivePresenter *xptr, XiveTCTX *tctx, hwaddr offset,
105                            uint64_t value, unsigned size);
106 uint64_t xive2_tm_pull_os_ctx(XivePresenter *xptr, XiveTCTX *tctx,
107                                hwaddr offset, unsigned size);
108 
109 #endif /* PPC_XIVE2_H */
110