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Diffstat (limited to 'roms/skiboot/include/psi.h')
| -rw-r--r-- | roms/skiboot/include/psi.h | 256 |
1 files changed, 256 insertions, 0 deletions
diff --git a/roms/skiboot/include/psi.h b/roms/skiboot/include/psi.h new file mode 100644 index 000000000..ac7afa09f --- /dev/null +++ b/roms/skiboot/include/psi.h @@ -0,0 +1,256 @@ +// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later +/* + * IBM System P PSI (Processor Service Interface) + * + * Copyright 2013-2019 IBM Corp. + */ +#ifndef __PSI_H +#define __PSI_H + +#include <skiboot.h> + +/* + * PSI Host Bridge Registers (MMIO) + * + * The PSI interface is the bridge to the FPS, it has its own + * registers. The FSP registers appear at an offset within the + * aperture defined by the PSI_FSPBAR + */ +/* Base address of the PSI MMIO space and LSB is the enable/valid bit */ +#define PSIHB_BBAR 0x00 + +/* FSP MMIO region -- this is where the mbx regs are (offset defined below) */ +#define PSIHB_FSPBAR 0x08 + +/* FSP MMIO region mask register -- determines size of region */ +#define PSIHB_FSPMMR 0x10 + +/* TCE address register */ +#define PSIHB_TAR 0x18 +#define PSIHB_TAR_8K_ENTRIES 0 +#define PSIHB_TAR_16K_ENTRIES 1 +#define PSIHB_TAR_256K_ENTRIES 2 /* P8 only */ +#define PSIHB_TAR_512K_ENTRIES 4 /* P8 only */ + +/* PSI Host Bridge Control Register */ +#define PSIHB_CR 0x20 +#define PSIHB_CR_FSP_CMD_ENABLE PPC_BIT(0) +#define PSIHB_CR_FSP_MMIO_ENABLE PPC_BIT(1) +#define PSIHB_CR_FSP_IRQ_ENABLE PPC_BIT(3) +#define PSIHB_CR_FSP_ERR_RSP_ENABLE PPC_BIT(4) +#define PSIHB_CR_PSI_LINK_ENABLE PPC_BIT(5) +#define PSIHB_CR_FSP_RESET PPC_BIT(6) +#define PSIHB_CR_PSIHB_RESET PPC_BIT(7) +#define PSIHB10_CR_STORE_EOI PPC_BIT(12) +#define PSIHB_CR_PSI_IRQ PPC_BIT(16) /* PSIHB interrupt */ +#define PSIHB_CR_FSP_IRQ PPC_BIT(17) /* FSP interrupt */ +#define PSIHB_CR_FSP_LINK_ACTIVE PPC_BIT(18) /* FSP link active */ + +/* Error conditions in the GXHB */ +#define PSIHB_CR_PSI_ERROR PPC_BIT(32) /* PSI error */ +#define PSIHB_CR_PSI_LINK_INACTIVE PPC_BIT(33) /* Link inactive */ +#define PSIHB_CR_FSP_ACK_TIMEOUT PPC_BIT(34) /* FSP ack timeout */ +#define PSIHB_CR_MMIO_LOAD_TIMEOUT PPC_BIT(35) /* MMIO load timeout */ +#define PSIHB_CR_MMIO_LENGTH_ERROR PPC_BIT(36) /* MMIO length error */ +#define PSIHB_CR_MMIO_ADDRESS_ERROR PPC_BIT(37) /* MMIO address error */ +#define PSIHB_CR_MMIO_TYPE_ERROR PPC_BIT(38) /* MMIO type error */ +#define PSIHB_CR_UE PPC_BIT(39) /* UE detected */ +#define PSIHB_CR_PARITY_ERROR PPC_BIT(40) /* Parity error */ +#define PSIHB_CR_SYNC_ERR_ALERT1 PPC_BIT(41) /* Sync alert 1 */ +#define PSIHB_CR_SYNC_ERR_ALERT2 PPC_BIT(42) /* Sync alert 2 */ +#define PSIHB_CR_FSP_COMMAND_ERROR PPC_BIT(43) /* FSP cmd error */ + +/* PSI Status / Error Mask Register */ +#define PSIHB_SEMR 0x28 + +/* XIVR and BUID used for PSI interrupts on P8 */ +#define PSIHB_XIVR_FSP 0x30 +#define PSIHB_XIVR_OCC 0x60 +#define PSIHB_XIVR_FSI 0x68 +#define PSIHB_XIVR_LPC 0x70 +#define PSIHB_XIVR_LOCAL_ERR 0x78 +#define PSIHB_XIVR_HOST_ERR 0x80 +#define PSIHB_IRSN 0x88 +#define PSIHB_IRSN_COMP PPC_BITMASK(0,18) +#define PSIHB_IRSN_IRQ_MUX PPC_BIT(28) +#define PSIHB_IRSN_IRQ_RESET PPC_BIT(29) +#define PSIHB_IRSN_DOWNSTREAM_EN PPC_BIT(30) +#define PSIHB_IRSN_UPSTREAM_EN PPC_BIT(31) +#define PSIHB_IRSN_MASK PPC_BITMASK(32,50) + +#define PSIHB_IRQ_STATUS 0x58 +#define PSIHB_IRQ_STAT_OCC PPC_BIT(27) +#define PSIHB_IRQ_STAT_FSI PPC_BIT(28) +#define PSIHB_IRQ_STAT_LPC PPC_BIT(29) +#define PSIHB_IRQ_STAT_LOCAL_ERR PPC_BIT(30) +#define PSIHB_IRQ_STAT_HOST_ERR PPC_BIT(31) + +/* Secure version of CR for P8 and P9 (TCE enable bit) */ +#define PSIHB_PHBSCR 0x90 +#define PSIHB_PHBSCR_TCE_ENABLE PPC_BIT(2) + +/* P9 registers */ + +#define PSIHB_INTERRUPT_CONTROL 0x58 +#define PSIHB_IRQ_METHOD PPC_BIT(0) +#define PSIHB_IRQ_RESET PPC_BIT(1) +#define PSIHB_ESB_CI_BASE 0x60 +#define PSIHB10_ESB_CI_64K PPC_BIT(1) +#define PSIHB_ESB_CI_VALID PPC_BIT(63) +#define PSIHB_ESB_NOTIF_ADDR 0x68 +#define PSIHB_ESB_NOTIF_VALID PPC_BIT(63) +#define PSIHB_IVT_OFFSET 0x70 +#define PSIHB_IVT_OFF_SHIFT 32 +/* + * PSI Host Bridge Registers (XSCOM) + */ +#define PSIHB_XSCOM_P8_BASE 0xa +#define PSIHB_XSCOM_P8_HBBAR_EN PPC_BIT(63) +#define PSIHB_XSCOM_P8_HBCSR 0xe +#define PSIHB_XSCOM_P8_HBCSR_SET 0x12 +#define PSIHB_XSCOM_P8_HBCSR_CLR 0x13 +#define PSIHB_XSCOM_P8_HBSCR_FSP_IRQ PPC_BIT(17) + +#define PSIHB_XSCOM_P9_BASE 0xa +#define PSIHB_XSCOM_P9_HBBAR_EN PPC_BIT(63) +#define PSIHB_XSCOM_P9_HBCSR 0xe +#define PSIHB_XSCOM_P9_HBCSR_SET 0x12 +#define PSIHB_XSCOM_P9_HBCSR_CLR 0x13 +#define PSIHB_XSCOM_P9_HBSCR_FSP_IRQ PPC_BIT(17) + +#define PSIHB_XSCOM_P10_BASE 0xa +#define PSIHB_XSCOM_P10_HBBAR_EN PPC_BIT(63) +#define PSIHB_XSCOM_P10_HBCSR 0xe +#define PSIHB_XSCOM_P10_HBCSR_SET 0x12 +#define PSIHB_XSCOM_P10_HBCSR_CLR 0x13 +#define PSIHB_XSCOM_P10_HBSCR_FSP_IRQ PPC_BIT(17) + +/* P9 PSI Interrupts */ +#define P9_PSI_IRQ_PSI 0 +#define P9_PSI_IRQ_OCC 1 +#define P9_PSI_IRQ_FSI 2 +#define P9_PSI_IRQ_LPCHC 3 +#define P9_PSI_IRQ_LOCAL_ERR 4 +#define P9_PSI_IRQ_GLOBAL_ERR 5 +#define P9_PSI_IRQ_EXTERNAL 6 +#define P9_PSI_IRQ_LPC_SIRQ0 7 +#define P9_PSI_IRQ_LPC_SIRQ1 8 +#define P9_PSI_IRQ_LPC_SIRQ2 9 +#define P9_PSI_IRQ_LPC_SIRQ3 10 +#define P9_PSI_IRQ_SBE_I2C 11 +#define P9_PSI_IRQ_DIO 12 +#define P9_PSI_IRQ_PSU 13 +#define P9_PSI_NUM_IRQS 14 + + + +/* + * Layout of the PSI DMA address space + * + * We use a larger mapping of 256K TCEs which provides us with a 1G window in + * order to fit the trace buffers + * + * Currently we have: + * + * - 4x256K serial areas (each divided in 2: in and out buffers) + * - 1M region for inbound buffers + * - 2M region for generic data fetches + */ +#define PSI_DMA_SER0_BASE 0x00000000 +#define PSI_DMA_SER0_SIZE 0x00040000 +#define PSI_DMA_SER1_BASE 0x00040000 +#define PSI_DMA_SER1_SIZE 0x00040000 +#define PSI_DMA_SER2_BASE 0x00080000 +#define PSI_DMA_SER2_SIZE 0x00040000 +#define PSI_DMA_SER3_BASE 0x000c0000 +#define PSI_DMA_SER3_SIZE 0x00040000 +#define PSI_DMA_INBOUND_BUF 0x00100000 +#define PSI_DMA_INBOUND_SIZE 0x00100000 +#define PSI_DMA_FETCH 0x00200000 +#define PSI_DMA_FETCH_SIZE 0x00800000 +#define PSI_DMA_NVRAM_BODY 0x00a00000 +#define PSI_DMA_NVRAM_BODY_SZ 0x00100000 +#define PSI_DMA_NVRAM_TRIPL 0x00b00000 +#define PSI_DMA_NVRAM_TRIPL_SZ 0x00001000 +#define PSI_DMA_OP_PANEL_MISC 0x00b01000 +#define PSI_DMA_OP_PANEL_SIZE 0x00001000 +#define PSI_DMA_GET_SYSPARAM 0x00b02000 +#define PSI_DMA_GET_SYSPARAM_SZ 0x00001000 +#define PSI_DMA_SET_SYSPARAM 0x00b03000 +#define PSI_DMA_SET_SYSPARAM_SZ 0x00001000 +#define PSI_DMA_ERRLOG_READ_BUF 0x00b04000 +#define PSI_DMA_ERRLOG_READ_BUF_SZ 0x00040000 +#define PSI_DMA_ELOG_PANIC_WRITE_BUF 0x00b44000 +#define PSI_DMA_ELOG_PANIC_WRITE_BUF_SZ 0x00010000 +#define PSI_DMA_ERRLOG_WRITE_BUF 0x00b54000 +#define PSI_DMA_ERRLOG_WRITE_BUF_SZ 0x00040000 +#define PSI_DMA_ELOG_WR_TO_HOST_BUF 0x00b94000 /* Unused */ +#define PSI_DMA_ELOG_WR_TO_HOST_BUF_SZ 0x00010000 +#define PSI_DMA_HBRT_LOG_WRITE_BUF 0x00ba4000 +#define PSI_DMA_HBRT_LOG_WRITE_BUF_SZ 0x00001000 +#define PSI_DMA_CODE_UPD 0x00c04000 +#define PSI_DMA_CODE_UPD_SIZE 0x01001000 +#define PSI_DMA_DUMP_DATA 0x01c05000 +#define PSI_DMA_DUMP_DATA_SIZE 0x00500000 +#define PSI_DMA_SENSOR_BUF 0x02105000 +#define PSI_DMA_SENSOR_BUF_SZ 0x00080000 +#define PSI_DMA_MDST_TABLE 0x02185000 +#define PSI_DMA_MDST_TABLE_SIZE 0x00001000 +#define PSI_DMA_HYP_DUMP 0x02186000 +#define PSI_DMA_HYP_DUMP_SIZE 0x01000000 +#define PSI_DMA_PCIE_INVENTORY 0x03186000 +#define PSI_DMA_PCIE_INVENTORY_SIZE 0x00010000 +#define PSI_DMA_LED_BUF 0x03196000 +#define PSI_DMA_LED_BUF_SZ 0x00001000 +#define PSI_DMA_LOC_COD_BUF 0x03197000 +#define PSI_DMA_LOC_COD_BUF_SZ 0x00008000 +#define PSI_DMA_MEMCONS 0x0319f000 +#define PSI_DMA_MEMCONS_SZ 0x00001000 +#define PSI_DMA_LOG_BUF 0x03200000 +#define PSI_DMA_LOG_BUF_SZ 0x00100000 /* INMEM_CON_LEN */ +#define PSI_DMA_PLAT_REQ_BUF 0x03300000 +#define PSI_DMA_PLAT_REQ_BUF_SIZE 0x00001000 +#define PSI_DMA_PLAT_RESP_BUF 0x03301000 +#define PSI_DMA_PLAT_RESP_BUF_SIZE 0x00001000 +/* + * Our PRD interface can handle upto 64KB data transfer between + * OPAL - opal-prd. Hence adding TCE size as 68KB. If we increase + * OPAL - opal-prd message size, then we have to fix this. + */ +#define PSI_DMA_HBRT_FSP_MSG 0x03302000 +#define PSI_DMA_HBRT_FSP_MSG_SIZE 0x00011000 + +#define PSI_DMA_TRACE_BASE 0x04000000 + +struct psi { + struct list_node list; + uint64_t xscom_base; + void *regs; + void *esb_mmio; + unsigned int chip_id; + unsigned int interrupt; + bool active; + bool no_lpc_irqs; + struct dt_node *node; +}; + +extern void psi_set_link_polling(bool active); + +extern struct psi *first_psi; +extern void psi_init(void); +extern struct psi *psi_find_link(uint32_t chip_id); +extern void psi_init_for_fsp(struct psi *psi); +extern void psi_disable_link(struct psi *psi); +extern void psi_reset_fsp(struct psi *psi); +extern bool psi_check_link_active(struct psi *psi); +extern bool psi_poll_fsp_interrupt(struct psi *psi); +extern struct psi *psi_find_functional_chip(void); + +/* Interrupts */ +extern void psi_irq_reset(void); +extern void psi_enable_fsp_interrupt(struct psi *psi); +extern void psi_fsp_link_in_use(struct psi *psi); + +extern struct lock psi_lock; + +#endif /* __PSI_H */ |