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xemu/hw/intc/pnv_xive_regs.h
Cédric Le Goater 2dfa91a2aa ppc/pnv: add a XIVE interrupt controller model for POWER9 
This is a simple model of the POWER9 XIVE interrupt controller for the
PowerNV machine which only addresses the needs of the skiboot
firmware. The PowerNV model reuses the common XIVE framework developed
for sPAPR as the fundamentals aspects are quite the same. The
difference are outlined below.

The controller initial BAR configuration is performed using the XSCOM
bus from there, MMIO are used for further configuration.

The MMIO regions exposed are :

 - Interrupt controller registers
 - ESB pages for IPIs and ENDs
 - Presenter MMIO (Not used)
 - Thread Interrupt Management Area MMIO, direct and indirect

The virtualization controller MMIO region containing the IPI ESB pages
and END ESB pages is sub-divided into "sets" which map portions of the
VC region to the different ESB pages. These are modeled with custom
address spaces and the XiveSource and XiveENDSource objects are sized
to the maximum allowed by HW. The memory regions are resized at
run-time using the configuration of EDT set translation table provided
by the firmware.

The XIVE virtualization structure tables (EAT, ENDT, NVTT) are now in
the machine RAM and not in the hypervisor anymore. The firmware
(skiboot) configures these tables using Virtual Structure Descriptor
defining the characteristics of each table : SBE, EAS, END and
NVT. These are later used to access the virtual interrupt entries. The
internal cache of these tables in the interrupt controller is updated
and invalidated using a set of registers.

Still to address to complete the model but not fully required is the
support for block grouping. Escalation support will be necessary for
KVM guests.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20190306085032.15744-7-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-12 14:33:04 +11:00

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/*
* QEMU PowerPC XIVE interrupt controller model
*
* Copyright (c) 2017-2018, IBM Corporation.
*
* This code is licensed under the GPL version 2 or later. See the
* COPYING file in the top-level directory.
*/
#ifndef PPC_PNV_XIVE_REGS_H
#define PPC_PNV_XIVE_REGS_H
/* IC register offsets 0x0 - 0x400 */
#define CQ_SWI_CMD_HIST 0x020
#define CQ_SWI_CMD_POLL 0x028
#define CQ_SWI_CMD_BCAST 0x030
#define CQ_SWI_CMD_ASSIGN 0x038
#define CQ_SWI_CMD_BLK_UPD 0x040
#define CQ_SWI_RSP 0x048
#define CQ_CFG_PB_GEN 0x050
#define CQ_INT_ADDR_OPT PPC_BITMASK(14, 15)
#define CQ_MSGSND 0x058
#define CQ_CNPM_SEL 0x078
#define CQ_IC_BAR 0x080
#define CQ_IC_BAR_VALID PPC_BIT(0)
#define CQ_IC_BAR_64K PPC_BIT(1)
#define CQ_TM1_BAR 0x90
#define CQ_TM2_BAR 0x0a0
#define CQ_TM_BAR_VALID PPC_BIT(0)
#define CQ_TM_BAR_64K PPC_BIT(1)
#define CQ_PC_BAR 0x0b0
#define CQ_PC_BAR_VALID PPC_BIT(0)
#define CQ_PC_BARM 0x0b8
#define CQ_PC_BARM_MASK PPC_BITMASK(26, 38)
#define CQ_VC_BAR 0x0c0
#define CQ_VC_BAR_VALID PPC_BIT(0)
#define CQ_VC_BARM 0x0c8
#define CQ_VC_BARM_MASK PPC_BITMASK(21, 37)
#define CQ_TAR 0x0f0
#define CQ_TAR_TBL_AUTOINC PPC_BIT(0)
#define CQ_TAR_TSEL PPC_BITMASK(12, 15)
#define CQ_TAR_TSEL_BLK PPC_BIT(12)
#define CQ_TAR_TSEL_MIG PPC_BIT(13)
#define CQ_TAR_TSEL_VDT PPC_BIT(14)
#define CQ_TAR_TSEL_EDT PPC_BIT(15)
#define CQ_TAR_TSEL_INDEX PPC_BITMASK(26, 31)
#define CQ_TDR 0x0f8
#define CQ_TDR_VDT_VALID PPC_BIT(0)
#define CQ_TDR_VDT_BLK PPC_BITMASK(11, 15)
#define CQ_TDR_VDT_INDEX PPC_BITMASK(28, 31)
#define CQ_TDR_EDT_TYPE PPC_BITMASK(0, 1)
#define CQ_TDR_EDT_INVALID 0
#define CQ_TDR_EDT_IPI 1
#define CQ_TDR_EDT_EQ 2
#define CQ_TDR_EDT_BLK PPC_BITMASK(12, 15)
#define CQ_TDR_EDT_INDEX PPC_BITMASK(26, 31)
#define CQ_PBI_CTL 0x100
#define CQ_PBI_PC_64K PPC_BIT(5)
#define CQ_PBI_VC_64K PPC_BIT(6)
#define CQ_PBI_LNX_TRIG PPC_BIT(7)
#define CQ_PBI_FORCE_TM_LOCAL PPC_BIT(22)
#define CQ_PBO_CTL 0x108
#define CQ_AIB_CTL 0x110
#define CQ_RST_CTL 0x118
#define CQ_FIRMASK 0x198
#define CQ_FIRMASK_AND 0x1a0
#define CQ_FIRMASK_OR 0x1a8
/* PC LBS1 register offsets 0x400 - 0x800 */
#define PC_TCTXT_CFG 0x400
#define PC_TCTXT_CFG_BLKGRP_EN PPC_BIT(0)
#define PC_TCTXT_CFG_TARGET_EN PPC_BIT(1)
#define PC_TCTXT_CFG_LGS_EN PPC_BIT(2)
#define PC_TCTXT_CFG_STORE_ACK PPC_BIT(3)
#define PC_TCTXT_CFG_HARD_CHIPID_BLK PPC_BIT(8)
#define PC_TCTXT_CHIPID_OVERRIDE PPC_BIT(9)
#define PC_TCTXT_CHIPID PPC_BITMASK(12, 15)
#define PC_TCTXT_INIT_AGE PPC_BITMASK(30, 31)
#define PC_TCTXT_TRACK 0x408
#define PC_TCTXT_TRACK_EN PPC_BIT(0)
#define PC_TCTXT_INDIR0 0x420
#define PC_TCTXT_INDIR_VALID PPC_BIT(0)
#define PC_TCTXT_INDIR_THRDID PPC_BITMASK(9, 15)
#define PC_TCTXT_INDIR1 0x428
#define PC_TCTXT_INDIR2 0x430
#define PC_TCTXT_INDIR3 0x438
#define PC_THREAD_EN_REG0 0x440
#define PC_THREAD_EN_REG0_SET 0x448
#define PC_THREAD_EN_REG0_CLR 0x450
#define PC_THREAD_EN_REG1 0x460
#define PC_THREAD_EN_REG1_SET 0x468
#define PC_THREAD_EN_REG1_CLR 0x470
#define PC_GLOBAL_CONFIG 0x480
#define PC_GCONF_INDIRECT PPC_BIT(32)
#define PC_GCONF_CHIPID_OVR PPC_BIT(40)
#define PC_GCONF_CHIPID PPC_BITMASK(44, 47)
#define PC_VSD_TABLE_ADDR 0x488
#define PC_VSD_TABLE_DATA 0x490
#define PC_AT_KILL 0x4b0
#define PC_AT_KILL_VALID PPC_BIT(0)
#define PC_AT_KILL_BLOCK_ID PPC_BITMASK(27, 31)
#define PC_AT_KILL_OFFSET PPC_BITMASK(48, 60)
#define PC_AT_KILL_MASK 0x4b8
/* PC LBS2 register offsets */
#define PC_VPC_CACHE_ENABLE 0x708
#define PC_VPC_CACHE_EN_MASK PPC_BITMASK(0, 31)
#define PC_VPC_SCRUB_TRIG 0x710
#define PC_VPC_SCRUB_MASK 0x718
#define PC_SCRUB_VALID PPC_BIT(0)
#define PC_SCRUB_WANT_DISABLE PPC_BIT(1)
#define PC_SCRUB_WANT_INVAL PPC_BIT(2)
#define PC_SCRUB_BLOCK_ID PPC_BITMASK(27, 31)
#define PC_SCRUB_OFFSET PPC_BITMASK(45, 63)
#define PC_VPC_CWATCH_SPEC 0x738
#define PC_VPC_CWATCH_CONFLICT PPC_BIT(0)
#define PC_VPC_CWATCH_FULL PPC_BIT(8)
#define PC_VPC_CWATCH_BLOCKID PPC_BITMASK(27, 31)
#define PC_VPC_CWATCH_OFFSET PPC_BITMASK(45, 63)
#define PC_VPC_CWATCH_DAT0 0x740
#define PC_VPC_CWATCH_DAT1 0x748
#define PC_VPC_CWATCH_DAT2 0x750
#define PC_VPC_CWATCH_DAT3 0x758
#define PC_VPC_CWATCH_DAT4 0x760
#define PC_VPC_CWATCH_DAT5 0x768
#define PC_VPC_CWATCH_DAT6 0x770
#define PC_VPC_CWATCH_DAT7 0x778
/* VC0 register offsets 0x800 - 0xFFF */
#define VC_GLOBAL_CONFIG 0x800
#define VC_GCONF_INDIRECT PPC_BIT(32)
#define VC_VSD_TABLE_ADDR 0x808
#define VC_VSD_TABLE_DATA 0x810
#define VC_IVE_ISB_BLOCK_MODE 0x818
#define VC_EQD_BLOCK_MODE 0x820
#define VC_VPS_BLOCK_MODE 0x828
#define VC_IRQ_CONFIG_IPI 0x840
#define VC_IRQ_CONFIG_MEMB_EN PPC_BIT(45)
#define VC_IRQ_CONFIG_MEMB_SZ PPC_BITMASK(46, 51)
#define VC_IRQ_CONFIG_HW 0x848
#define VC_IRQ_CONFIG_CASCADE1 0x850
#define VC_IRQ_CONFIG_CASCADE2 0x858
#define VC_IRQ_CONFIG_REDIST 0x860
#define VC_IRQ_CONFIG_IPI_CASC 0x868
#define VC_AIB_TX_ORDER_TAG2_REL_TF PPC_BIT(20)
#define VC_AIB_TX_ORDER_TAG2 0x890
#define VC_AT_MACRO_KILL 0x8b0
#define VC_AT_MACRO_KILL_MASK 0x8b8
#define VC_KILL_VALID PPC_BIT(0)
#define VC_KILL_TYPE PPC_BITMASK(14, 15)
#define VC_KILL_IRQ 0
#define VC_KILL_IVC 1
#define VC_KILL_SBC 2
#define VC_KILL_EQD 3
#define VC_KILL_BLOCK_ID PPC_BITMASK(27, 31)
#define VC_KILL_OFFSET PPC_BITMASK(48, 60)
#define VC_EQC_CACHE_ENABLE 0x908
#define VC_EQC_CACHE_EN_MASK PPC_BITMASK(0, 15)
#define VC_EQC_SCRUB_TRIG 0x910
#define VC_EQC_SCRUB_MASK 0x918
#define VC_EQC_CONFIG 0x920
#define X_VC_EQC_CONFIG 0x214 /* XSCOM register */
#define VC_EQC_CONF_SYNC_IPI PPC_BIT(32)
#define VC_EQC_CONF_SYNC_HW PPC_BIT(33)
#define VC_EQC_CONF_SYNC_ESC1 PPC_BIT(34)
#define VC_EQC_CONF_SYNC_ESC2 PPC_BIT(35)
#define VC_EQC_CONF_SYNC_REDI PPC_BIT(36)
#define VC_EQC_CONF_EQP_INTERLEAVE PPC_BIT(38)
#define VC_EQC_CONF_ENABLE_END_s_BIT PPC_BIT(39)
#define VC_EQC_CONF_ENABLE_END_u_BIT PPC_BIT(40)
#define VC_EQC_CONF_ENABLE_END_c_BIT PPC_BIT(41)
#define VC_EQC_CONF_ENABLE_MORE_QSZ PPC_BIT(42)
#define VC_EQC_CONF_SKIP_ESCALATE PPC_BIT(43)
#define VC_EQC_CWATCH_SPEC 0x928
#define VC_EQC_CWATCH_CONFLICT PPC_BIT(0)
#define VC_EQC_CWATCH_FULL PPC_BIT(8)
#define VC_EQC_CWATCH_BLOCKID PPC_BITMASK(28, 31)
#define VC_EQC_CWATCH_OFFSET PPC_BITMASK(40, 63)
#define VC_EQC_CWATCH_DAT0 0x930
#define VC_EQC_CWATCH_DAT1 0x938
#define VC_EQC_CWATCH_DAT2 0x940
#define VC_EQC_CWATCH_DAT3 0x948
#define VC_IVC_SCRUB_TRIG 0x990
#define VC_IVC_SCRUB_MASK 0x998
#define VC_SBC_SCRUB_TRIG 0xa10
#define VC_SBC_SCRUB_MASK 0xa18
#define VC_SCRUB_VALID PPC_BIT(0)
#define VC_SCRUB_WANT_DISABLE PPC_BIT(1)
#define VC_SCRUB_WANT_INVAL PPC_BIT(2) /* EQC and SBC only */
#define VC_SCRUB_BLOCK_ID PPC_BITMASK(28, 31)
#define VC_SCRUB_OFFSET PPC_BITMASK(40, 63)
#define VC_IVC_CACHE_ENABLE 0x988
#define VC_IVC_CACHE_EN_MASK PPC_BITMASK(0, 15)
#define VC_SBC_CACHE_ENABLE 0xa08
#define VC_SBC_CACHE_EN_MASK PPC_BITMASK(0, 15)
#define VC_IVC_CACHE_SCRUB_TRIG 0x990
#define VC_IVC_CACHE_SCRUB_MASK 0x998
#define VC_SBC_CACHE_ENABLE 0xa08
#define VC_SBC_CACHE_SCRUB_TRIG 0xa10
#define VC_SBC_CACHE_SCRUB_MASK 0xa18
#define VC_SBC_CONFIG 0xa20
#define VC_SBC_CONF_CPLX_CIST PPC_BIT(44)
#define VC_SBC_CONF_CIST_BOTH PPC_BIT(45)
#define VC_SBC_CONF_NO_UPD_PRF PPC_BIT(59)
/* VC1 register offsets */
/* VSD Table address register definitions (shared) */
#define VST_ADDR_AUTOINC PPC_BIT(0)
#define VST_TABLE_SELECT PPC_BITMASK(13, 15)
#define VST_TSEL_IVT 0
#define VST_TSEL_SBE 1
#define VST_TSEL_EQDT 2
#define VST_TSEL_VPDT 3
#define VST_TSEL_IRQ 4 /* VC only */
#define VST_TABLE_BLOCK PPC_BITMASK(27, 31)
/* Number of queue overflow pages */
#define VC_QUEUE_OVF_COUNT 6
/*
* Bits in a VSD entry.
*
* Note: the address is naturally aligned, we don't use a PPC_BITMASK,
* but just a mask to apply to the address before OR'ing it in.
*
* Note: VSD_FIRMWARE is a SW bit ! It hijacks an unused bit in the
* VSD and is only meant to be used in indirect mode !
*/
#define VSD_MODE PPC_BITMASK(0, 1)
#define VSD_MODE_SHARED 1
#define VSD_MODE_EXCLUSIVE 2
#define VSD_MODE_FORWARD 3
#define VSD_ADDRESS_MASK 0x0ffffffffffff000ull
#define VSD_MIGRATION_REG PPC_BITMASK(52, 55)
#define VSD_INDIRECT PPC_BIT(56)
#define VSD_TSIZE PPC_BITMASK(59, 63)
#define VSD_FIRMWARE PPC_BIT(2) /* Read warning above */
#define VC_EQC_SYNC_MASK \
(VC_EQC_CONF_SYNC_IPI | \
VC_EQC_CONF_SYNC_HW | \
VC_EQC_CONF_SYNC_ESC1 | \
VC_EQC_CONF_SYNC_ESC2 | \
VC_EQC_CONF_SYNC_REDI)
#endif /* PPC_PNV_XIVE_REGS_H */
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