diff options
| author | Cédric Le Goater <clg@kaod.org> | 2019-03-07 23:35:44 +0100 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2019-03-12 14:33:04 +1100 |
| commit | 5dad902ce09877a97a6f32e5f6c75b4f8506bd73 (patch) | |
| tree | e17c6171757a39c2072a4b3909b9c77dbf5150ac /include/hw/ppc | |
| parent | 90ef386c74b1b2c485b69a1bdb24895bebd45502 (diff) | |
ppc/pnv: POWER9 XSCOM quad support
The POWER9 processor does not support per-core frequency control. The
cores are arranged in groups of four, along with their respective L2
and L3 caches, into a structure known as a Quad. The frequency must be
managed at the Quad level.
Provide a basic Quad model to fake the settings done by the firmware
on the Non-Cacheable Unit (NCU). Each core pair (EX) needs a special
BAR setting for the TIMA area of XIVE because it resides on the same
address on all chips.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20190307223548.20516-12-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'include/hw/ppc')
| -rw-r--r-- | include/hw/ppc/pnv.h | 4 | ||||
| -rw-r--r-- | include/hw/ppc/pnv_core.h | 10 | ||||
| -rw-r--r-- | include/hw/ppc/pnv_xscom.h | 12 |
3 files changed, 22 insertions, 4 deletions
diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h index 39888f9d52..e5b00d373e 100644 --- a/include/hw/ppc/pnv.h +++ b/include/hw/ppc/pnv.h @@ -26,6 +26,7 @@ #include "hw/ppc/pnv_psi.h" #include "hw/ppc/pnv_occ.h" #include "hw/ppc/pnv_xive.h" +#include "hw/ppc/pnv_core.h" #define TYPE_PNV_CHIP "pnv-chip" #define PNV_CHIP(obj) OBJECT_CHECK(PnvChip, (obj), TYPE_PNV_CHIP) @@ -89,6 +90,9 @@ typedef struct Pnv9Chip { Pnv9Psi psi; PnvLpcController lpc; PnvOCC occ; + + uint32_t nr_quads; + PnvQuad *quads; } Pnv9Chip; typedef struct PnvChipClass { diff --git a/include/hw/ppc/pnv_core.h b/include/hw/ppc/pnv_core.h index cbe9ad36f3..50cdb2b358 100644 --- a/include/hw/ppc/pnv_core.h +++ b/include/hw/ppc/pnv_core.h @@ -58,4 +58,14 @@ static inline PnvCPUState *pnv_cpu_state(PowerPCCPU *cpu) return (PnvCPUState *)cpu->machine_data; } +#define TYPE_PNV_QUAD "powernv-cpu-quad" +#define PNV_QUAD(obj) \ + OBJECT_CHECK(PnvQuad, (obj), TYPE_PNV_QUAD) + +typedef struct PnvQuad { + DeviceState parent_obj; + + uint32_t id; + MemoryRegion xscom_regs; +} PnvQuad; #endif /* _PPC_PNV_CORE_H */ diff --git a/include/hw/ppc/pnv_xscom.h b/include/hw/ppc/pnv_xscom.h index 3292459fbb..68dfae0dfe 100644 --- a/include/hw/ppc/pnv_xscom.h +++ b/include/hw/ppc/pnv_xscom.h @@ -60,10 +60,6 @@ typedef struct PnvXScomInterfaceClass { (PNV_XSCOM_EX_CORE_BASE | ((uint64_t)(core) << 24)) #define PNV_XSCOM_EX_SIZE 0x100000 -#define PNV_XSCOM_P9_EC_BASE(core) \ - ((uint64_t)(((core) & 0x1F) + 0x20) << 24) -#define PNV_XSCOM_P9_EC_SIZE 0x100000 - #define PNV_XSCOM_LPC_BASE 0xb0020 #define PNV_XSCOM_LPC_SIZE 0x4 @@ -73,6 +69,14 @@ typedef struct PnvXScomInterfaceClass { #define PNV_XSCOM_OCC_BASE 0x0066000 #define PNV_XSCOM_OCC_SIZE 0x6000 +#define PNV9_XSCOM_EC_BASE(core) \ + ((uint64_t)(((core) & 0x1F) + 0x20) << 24) +#define PNV9_XSCOM_EC_SIZE 0x100000 + +#define PNV9_XSCOM_EQ_BASE(core) \ + ((uint64_t)(((core) & 0x1C) + 0x40) << 22) +#define PNV9_XSCOM_EQ_SIZE 0x100000 + #define PNV9_XSCOM_OCC_BASE PNV_XSCOM_OCC_BASE #define PNV9_XSCOM_OCC_SIZE 0x8000 |