Release 4.14 arch/ia64/include/asm/sn/tioca.h
#ifndef _ASM_IA64_SN_TIO_TIOCA_H
#define _ASM_IA64_SN_TIO_TIOCA_H
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (c) 2003-2005 Silicon Graphics, Inc. All rights reserved.
*/
#define TIOCA_PART_NUM 0xE020
#define TIOCA_MFGR_NUM 0x24
#define TIOCA_REV_A 0x1
/*
* Register layout for TIO:CA. See below for bitmasks for each register.
*/
struct tioca {
u64 ca_id; /* 0x000000 */
u64 ca_control1; /* 0x000008 */
u64 ca_control2; /* 0x000010 */
u64 ca_status1; /* 0x000018 */
u64 ca_status2; /* 0x000020 */
u64 ca_gart_aperature; /* 0x000028 */
u64 ca_gfx_detach; /* 0x000030 */
u64 ca_inta_dest_addr; /* 0x000038 */
u64 ca_intb_dest_addr; /* 0x000040 */
u64 ca_err_int_dest_addr; /* 0x000048 */
u64 ca_int_status; /* 0x000050 */
u64 ca_int_status_alias; /* 0x000058 */
u64 ca_mult_error; /* 0x000060 */
u64 ca_mult_error_alias; /* 0x000068 */
u64 ca_first_error; /* 0x000070 */
u64 ca_int_mask; /* 0x000078 */
u64 ca_crm_pkterr_type; /* 0x000080 */
u64 ca_crm_pkterr_type_alias; /* 0x000088 */
u64 ca_crm_ct_error_detail_1; /* 0x000090 */
u64 ca_crm_ct_error_detail_2; /* 0x000098 */
u64 ca_crm_tnumto; /* 0x0000A0 */
u64 ca_gart_err; /* 0x0000A8 */
u64 ca_pcierr_type; /* 0x0000B0 */
u64 ca_pcierr_addr; /* 0x0000B8 */
u64 ca_pad_0000C0[3]; /* 0x0000{C0..D0} */
u64 ca_pci_rd_buf_flush; /* 0x0000D8 */
u64 ca_pci_dma_addr_extn; /* 0x0000E0 */
u64 ca_agp_dma_addr_extn; /* 0x0000E8 */
u64 ca_force_inta; /* 0x0000F0 */
u64 ca_force_intb; /* 0x0000F8 */
u64 ca_debug_vector_sel; /* 0x000100 */
u64 ca_debug_mux_core_sel; /* 0x000108 */
u64 ca_debug_mux_pci_sel; /* 0x000110 */
u64 ca_debug_domain_sel; /* 0x000118 */
u64 ca_pad_000120[28]; /* 0x0001{20..F8} */
u64 ca_gart_ptr_table; /* 0x200 */
u64 ca_gart_tlb_addr[8]; /* 0x2{08..40} */
};
/*
* Mask/shift definitions for TIO:CA registers. The convention here is
* to mainly use the names as they appear in the "TIO AEGIS Programmers'
* Reference" with a CA_ prefix added. Some exceptions were made to fix
* duplicate field names or to generalize fields that are common to
* different registers (ca_debug_mux_core_sel and ca_debug_mux_pci_sel for
* example).
*
* Fields consisting of a single bit have a single #define have a single
* macro declaration to mask the bit. Fields consisting of multiple bits
* have two declarations: one to mask the proper bits in a register, and
* a second with the suffix "_SHFT" to identify how far the mask needs to
* be shifted right to get its base value.
*/
/* ==== ca_control1 */
#define CA_SYS_BIG_END (1ull << 0)
#define CA_DMA_AGP_SWAP (1ull << 1)
#define CA_DMA_PCI_SWAP (1ull << 2)
#define CA_PIO_IO_SWAP (1ull << 3)
#define CA_PIO_MEM_SWAP (1ull << 4)
#define CA_GFX_WR_SWAP (1ull << 5)
#define CA_AGP_FW_ENABLE (1ull << 6)
#define CA_AGP_CAL_CYCLE (0x7ull << 7)
#define CA_AGP_CAL_CYCLE_SHFT 7
#define CA_AGP_CAL_PRSCL_BYP (1ull << 10)
#define CA_AGP_INIT_CAL_ENB (1ull << 11)
#define CA_INJ_ADDR_PERR (1ull << 12)
#define CA_INJ_DATA_PERR (1ull << 13)
/* bits 15:14 unused */
#define CA_PCIM_IO_NBE_AD (0x7ull << 16)
#define CA_PCIM_IO_NBE_AD_SHFT 16
#define CA_PCIM_FAST_BTB_ENB (1ull << 19)
/* bits 23:20 unused */
#define CA_PIO_ADDR_OFFSET (0xffull << 24)
#define CA_PIO_ADDR_OFFSET_SHFT 24
/* bits 35:32 unused */
#define CA_AGPDMA_OP_COMBDELAY (0x1full << 36)
#define CA_AGPDMA_OP_COMBDELAY_SHFT 36
/* bit 41 unused */
#define CA_AGPDMA_OP_ENB_COMBDELAY (1ull << 42)
#define CA_PCI_INT_LPCNT (0xffull << 44)
#define CA_PCI_INT_LPCNT_SHFT 44
/* bits 63:52 unused */
/* ==== ca_control2 */
#define CA_AGP_LATENCY_TO (0xffull << 0)
#define CA_AGP_LATENCY_TO_SHFT 0
#define CA_PCI_LATENCY_TO (0xffull << 8)
#define CA_PCI_LATENCY_TO_SHFT 8
#define CA_PCI_MAX_RETRY (0x3ffull << 16)
#define CA_PCI_MAX_RETRY_SHFT 16
/* bits 27:26 unused */
#define CA_RT_INT_EN (0x3ull << 28)
#define CA_RT_INT_EN_SHFT 28
#define CA_MSI_INT_ENB (1ull << 30)
#define CA_PCI_ARB_ERR_ENB (1ull << 31)
#define CA_GART_MEM_PARAM (0x3ull << 32)
#define CA_GART_MEM_PARAM_SHFT 32
#define CA_GART_RD_PREFETCH_ENB (1ull << 34)
#define CA_GART_WR_PREFETCH_ENB (1ull << 35)
#define CA_GART_FLUSH_TLB (1ull << 36)
/* bits 39:37 unused */
#define CA_CRM_TNUMTO_PERIOD (0x1fffull << 40)
#define CA_CRM_TNUMTO_PERIOD_SHFT 40
/* bits 55:53 unused */
#define CA_CRM_TNUMTO_ENB (1ull << 56)
#define CA_CRM_PRESCALER_BYP (1ull << 57)
/* bits 59:58 unused */
#define CA_CRM_MAX_CREDIT (0x7ull << 60)
#define CA_CRM_MAX_CREDIT_SHFT 60
/* bit 63 unused */
/* ==== ca_status1 */
#define CA_CORELET_ID (0x3ull << 0)
#define CA_CORELET_ID_SHFT 0
#define CA_INTA_N (1ull << 2)
#define CA_INTB_N (1ull << 3)
#define CA_CRM_CREDIT_AVAIL (0x7ull << 4)
#define CA_CRM_CREDIT_AVAIL_SHFT 4
/* bit 7 unused */
#define CA_CRM_SPACE_AVAIL (0x7full << 8)
#define CA_CRM_SPACE_AVAIL_SHFT 8
/* bit 15 unused */
#define CA_GART_TLB_VAL (0xffull << 16)
#define CA_GART_TLB_VAL_SHFT 16
/* bits 63:24 unused */
/* ==== ca_status2 */
#define CA_GFX_CREDIT_AVAIL (0xffull << 0)
#define CA_GFX_CREDIT_AVAIL_SHFT 0
#define CA_GFX_OPQ_AVAIL (0xffull << 8)
#define CA_GFX_OPQ_AVAIL_SHFT 8
#define CA_GFX_WRBUFF_AVAIL (0xffull << 16)
#define CA_GFX_WRBUFF_AVAIL_SHFT 16
#define CA_ADMA_OPQ_AVAIL (0xffull << 24)
#define CA_ADMA_OPQ_AVAIL_SHFT 24
#define CA_ADMA_WRBUFF_AVAIL (0xffull << 32)
#define CA_ADMA_WRBUFF_AVAIL_SHFT 32
#define CA_ADMA_RDBUFF_AVAIL (0x7full << 40)
#define CA_ADMA_RDBUFF_AVAIL_SHFT 40
#define CA_PCI_PIO_OP_STAT (1ull << 47)
#define CA_PDMA_OPQ_AVAIL (0xfull << 48)
#define CA_PDMA_OPQ_AVAIL_SHFT 48
#define CA_PDMA_WRBUFF_AVAIL (0xfull << 52)
#define CA_PDMA_WRBUFF_AVAIL_SHFT 52
#define CA_PDMA_RDBUFF_AVAIL (0x3ull << 56)
#define CA_PDMA_RDBUFF_AVAIL_SHFT 56
/* bits 63:58 unused */
/* ==== ca_gart_aperature */
#define CA_GART_AP_ENB_AGP (1ull << 0)
#define CA_GART_PAGE_SIZE (1ull << 1)
#define CA_GART_AP_ENB_PCI (1ull << 2)
/* bits 11:3 unused */
#define CA_GART_AP_SIZE (0x3ffull << 12)
#define CA_GART_AP_SIZE_SHFT 12
#define CA_GART_AP_BASE (0x3ffffffffffull << 22)
#define CA_GART_AP_BASE_SHFT 22
/* ==== ca_inta_dest_addr
==== ca_intb_dest_addr
==== ca_err_int_dest_addr */
/* bits 2:0 unused */
#define CA_INT_DEST_ADDR (0x7ffffffffffffull << 3)
#define CA_INT_DEST_ADDR_SHFT 3
/* bits 55:54 unused */
#define CA_INT_DEST_VECT (0xffull << 56)
#define CA_INT_DEST_VECT_SHFT 56
/* ==== ca_int_status */
/* ==== ca_int_status_alias */
/* ==== ca_mult_error */
/* ==== ca_mult_error_alias */
/* ==== ca_first_error */
/* ==== ca_int_mask */
#define CA_PCI_ERR (1ull << 0)
/* bits 3:1 unused */
#define CA_GART_FETCH_ERR (1ull << 4)
#define CA_GFX_WR_OVFLW (1ull << 5)
#define CA_PIO_REQ_OVFLW (1ull << 6)
#define CA_CRM_PKTERR (1ull << 7)
#define CA_CRM_DVERR (1ull << 8)
#define CA_TNUMTO (1ull << 9)
#define CA_CXM_RSP_CRED_OVFLW (1ull << 10)
#define CA_CXM_REQ_CRED_OVFLW (1ull << 11)
#define CA_PIO_INVALID_ADDR (1ull << 12)
#define CA_PCI_ARB_TO (1ull << 13)
#define CA_AGP_REQ_OFLOW (1ull << 14)
#define CA_SBA_TYPE1_ERR (1ull << 15)
/* bit 16 unused */
#define CA_INTA (1ull << 17)
#define CA_INTB (1ull << 18)
#define CA_MULT_INTA (1ull << 19)
#define CA_MULT_INTB (1ull << 20)
#define CA_GFX_CREDIT_OVFLW (1ull << 21)
/* bits 63:22 unused */
/* ==== ca_crm_pkterr_type */
/* ==== ca_crm_pkterr_type_alias */
#define CA_CRM_PKTERR_SBERR_HDR (1ull << 0)
#define CA_CRM_PKTERR_DIDN (1ull << 1)
#define CA_CRM_PKTERR_PACTYPE (1ull << 2)
#define CA_CRM_PKTERR_INV_TNUM (1ull << 3)
#define CA_CRM_PKTERR_ADDR_RNG (1ull << 4)
#define CA_CRM_PKTERR_ADDR_ALGN (1ull << 5)
#define CA_CRM_PKTERR_HDR_PARAM (1ull << 6)
#define CA_CRM_PKTERR_CW_ERR (1ull << 7)
#define CA_CRM_PKTERR_SBERR_NH (1ull << 8)
#define CA_CRM_PKTERR_EARLY_TERM (1ull << 9)
#define CA_CRM_PKTERR_EARLY_TAIL (1ull << 10)
#define CA_CRM_PKTERR_MSSNG_TAIL (1ull << 11)
#define CA_CRM_PKTERR_MSSNG_HDR (1ull << 12)
/* bits 15:13 unused */
#define CA_FIRST_CRM_PKTERR_SBERR_HDR (1ull << 16)
#define CA_FIRST_CRM_PKTERR_DIDN (1ull << 17)
#define CA_FIRST_CRM_PKTERR_PACTYPE (1ull << 18)
#define CA_FIRST_CRM_PKTERR_INV_TNUM (1ull << 19)
#define CA_FIRST_CRM_PKTERR_ADDR_RNG (1ull << 20)
#define CA_FIRST_CRM_PKTERR_ADDR_ALGN (1ull << 21)
#define CA_FIRST_CRM_PKTERR_HDR_PARAM (1ull << 22)
#define CA_FIRST_CRM_PKTERR_CW_ERR (1ull << 23)
#define CA_FIRST_CRM_PKTERR_SBERR_NH (1ull << 24)
#define CA_FIRST_CRM_PKTERR_EARLY_TERM (1ull << 25)
#define CA_FIRST_CRM_PKTERR_EARLY_TAIL (1ull << 26)
#define CA_FIRST_CRM_PKTERR_MSSNG_TAIL (1ull << 27)
#define CA_FIRST_CRM_PKTERR_MSSNG_HDR (1ull << 28)
/* bits 63:29 unused */
/* ==== ca_crm_ct_error_detail_1 */
#define CA_PKT_TYPE (0xfull << 0)
#define CA_PKT_TYPE_SHFT 0
#define CA_SRC_ID (0x3ull << 4)
#define CA_SRC_ID_SHFT 4
#define CA_DATA_SZ (0x3ull << 6)
#define CA_DATA_SZ_SHFT 6
#define CA_TNUM (0xffull << 8)
#define CA_TNUM_SHFT 8
#define CA_DW_DATA_EN (0xffull << 16)
#define CA_DW_DATA_EN_SHFT 16
#define CA_GFX_CRED (0xffull << 24)
#define CA_GFX_CRED_SHFT 24
#define CA_MEM_RD_PARAM (0x3ull << 32)
#define CA_MEM_RD_PARAM_SHFT 32
#define CA_PIO_OP (1ull << 34)
#define CA_CW_ERR (1ull << 35)
/* bits 62:36 unused */
#define CA_VALID (1ull << 63)
/* ==== ca_crm_ct_error_detail_2 */
/* bits 2:0 unused */
#define CA_PKT_ADDR (0x1fffffffffffffull << 3)
#define CA_PKT_ADDR_SHFT 3
/* bits 63:56 unused */
/* ==== ca_crm_tnumto */
#define CA_CRM_TNUMTO_VAL (0xffull << 0)
#define CA_CRM_TNUMTO_VAL_SHFT 0
#define CA_CRM_TNUMTO_WR (1ull << 8)
/* bits 63:9 unused */
/* ==== ca_gart_err */
#define CA_GART_ERR_SOURCE (0x3ull << 0)
#define CA_GART_ERR_SOURCE_SHFT 0
/* bits 3:2 unused */
#define CA_GART_ERR_ADDR (0xfffffffffull << 4)
#define CA_GART_ERR_ADDR_SHFT 4
/* bits 63:40 unused */
/* ==== ca_pcierr_type */
#define CA_PCIERR_DATA (0xffffffffull << 0)
#define CA_PCIERR_DATA_SHFT 0
#define CA_PCIERR_ENB (0xfull << 32)
#define CA_PCIERR_ENB_SHFT 32
#define CA_PCIERR_CMD (0xfull << 36)
#define CA_PCIERR_CMD_SHFT 36
#define CA_PCIERR_A64 (1ull << 40)
#define CA_PCIERR_SLV_SERR (1ull << 41)
#define CA_PCIERR_SLV_WR_PERR (1ull << 42)
#define CA_PCIERR_SLV_RD_PERR (1ull << 43)
#define CA_PCIERR_MST_SERR (1ull << 44)
#define CA_PCIERR_MST_WR_PERR (1ull << 45)
#define CA_PCIERR_MST_RD_PERR (1ull << 46)
#define CA_PCIERR_MST_MABT (1ull << 47)
#define CA_PCIERR_MST_TABT (1ull << 48)
#define CA_PCIERR_MST_RETRY_TOUT (1ull << 49)
#define CA_PCIERR_TYPES \
(CA_PCIERR_A64|CA_PCIERR_SLV_SERR| \
CA_PCIERR_SLV_WR_PERR|CA_PCIERR_SLV_RD_PERR| \
CA_PCIERR_MST_SERR|CA_PCIERR_MST_WR_PERR|CA_PCIERR_MST_RD_PERR| \
CA_PCIERR_MST_MABT|CA_PCIERR_MST_TABT|CA_PCIERR_MST_RETRY_TOUT)
/* bits 63:50 unused */
/* ==== ca_pci_dma_addr_extn */
#define CA_UPPER_NODE_OFFSET (0x3full << 0)
#define CA_UPPER_NODE_OFFSET_SHFT 0
/* bits 7:6 unused */
#define CA_CHIPLET_ID (0x3ull << 8)
#define CA_CHIPLET_ID_SHFT 8
/* bits 11:10 unused */
#define CA_PCI_DMA_NODE_ID (0xffffull << 12)
#define CA_PCI_DMA_NODE_ID_SHFT 12
/* bits 27:26 unused */
#define CA_PCI_DMA_PIO_MEM_TYPE (1ull << 28)
/* bits 63:29 unused */
/* ==== ca_agp_dma_addr_extn */
/* bits 19:0 unused */
#define CA_AGP_DMA_NODE_ID (0xffffull << 20)
#define CA_AGP_DMA_NODE_ID_SHFT 20
/* bits 27:26 unused */
#define CA_AGP_DMA_PIO_MEM_TYPE (1ull << 28)
/* bits 63:29 unused */
/* ==== ca_debug_vector_sel */
#define CA_DEBUG_MN_VSEL (0xfull << 0)
#define CA_DEBUG_MN_VSEL_SHFT 0
#define CA_DEBUG_PP_VSEL (0xfull << 4)
#define CA_DEBUG_PP_VSEL_SHFT 4
#define CA_DEBUG_GW_VSEL (0xfull << 8)
#define CA_DEBUG_GW_VSEL_SHFT 8
#define CA_DEBUG_GT_VSEL (0xfull << 12)
#define CA_DEBUG_GT_VSEL_SHFT 12
#define CA_DEBUG_PD_VSEL (0xfull << 16)
#define CA_DEBUG_PD_VSEL_SHFT 16
#define CA_DEBUG_AD_VSEL (0xfull << 20)
#define CA_DEBUG_AD_VSEL_SHFT 20
#define CA_DEBUG_CX_VSEL (0xfull << 24)
#define CA_DEBUG_CX_VSEL_SHFT 24
#define CA_DEBUG_CR_VSEL (0xfull << 28)
#define CA_DEBUG_CR_VSEL_SHFT 28
#define CA_DEBUG_BA_VSEL (0xfull << 32)
#define CA_DEBUG_BA_VSEL_SHFT 32
#define CA_DEBUG_PE_VSEL (0xfull << 36)
#define CA_DEBUG_PE_VSEL_SHFT 36
#define CA_DEBUG_BO_VSEL (0xfull << 40)
#define CA_DEBUG_BO_VSEL_SHFT 40
#define CA_DEBUG_BI_VSEL (0xfull << 44)
#define CA_DEBUG_BI_VSEL_SHFT 44
#define CA_DEBUG_AS_VSEL (0xfull << 48)
#define CA_DEBUG_AS_VSEL_SHFT 48
#define CA_DEBUG_PS_VSEL (0xfull << 52)
#define CA_DEBUG_PS_VSEL_SHFT 52
#define CA_DEBUG_PM_VSEL (0xfull << 56)
#define CA_DEBUG_PM_VSEL_SHFT 56
/* bits 63:60 unused */
/* ==== ca_debug_mux_core_sel */
/* ==== ca_debug_mux_pci_sel */
#define CA_DEBUG_MSEL0 (0x7ull << 0)
#define CA_DEBUG_MSEL0_SHFT 0
/* bit 3 unused */
#define CA_DEBUG_NSEL0 (0x7ull << 4)
#define CA_DEBUG_NSEL0_SHFT 4
/* bit 7 unused */
#define CA_DEBUG_MSEL1 (0x7ull << 8)
#define CA_DEBUG_MSEL1_SHFT 8
/* bit 11 unused */
#define CA_DEBUG_NSEL1 (0x7ull << 12)
#define CA_DEBUG_NSEL1_SHFT 12
/* bit 15 unused */
#define CA_DEBUG_MSEL2 (0x7ull << 16)
#define CA_DEBUG_MSEL2_SHFT 16
/* bit 19 unused */
#define CA_DEBUG_NSEL2 (0x7ull << 20)
#define CA_DEBUG_NSEL2_SHFT 20
/* bit 23 unused */
#define CA_DEBUG_MSEL3 (0x7ull << 24)
#define CA_DEBUG_MSEL3_SHFT 24
/* bit 27 unused */
#define CA_DEBUG_NSEL3 (0x7ull << 28)
#define CA_DEBUG_NSEL3_SHFT 28
/* bit 31 unused */
#define CA_DEBUG_MSEL4 (0x7ull << 32)
#define CA_DEBUG_MSEL4_SHFT 32
/* bit 35 unused */
#define CA_DEBUG_NSEL4 (0x7ull << 36)
#define CA_DEBUG_NSEL4_SHFT 36
/* bit 39 unused */
#define CA_DEBUG_MSEL5 (0x7ull << 40)
#define CA_DEBUG_MSEL5_SHFT 40
/* bit 43 unused */
#define CA_DEBUG_NSEL5 (0x7ull << 44)
#define CA_DEBUG_NSEL5_SHFT 44
/* bit 47 unused */
#define CA_DEBUG_MSEL6 (0x7ull << 48)
#define CA_DEBUG_MSEL6_SHFT 48
/* bit 51 unused */
#define CA_DEBUG_NSEL6 (0x7ull << 52)
#define CA_DEBUG_NSEL6_SHFT 52
/* bit 55 unused */
#define CA_DEBUG_MSEL7 (0x7ull << 56)
#define CA_DEBUG_MSEL7_SHFT 56
/* bit 59 unused */
#define CA_DEBUG_NSEL7 (0x7ull << 60)
#define CA_DEBUG_NSEL7_SHFT 60
/* bit 63 unused */
/* ==== ca_debug_domain_sel */
#define CA_DEBUG_DOMAIN_L (1ull << 0)
#define CA_DEBUG_DOMAIN_H (1ull << 1)
/* bits 63:2 unused */
/* ==== ca_gart_ptr_table */
#define CA_GART_PTR_VAL (1ull << 0)
/* bits 11:1 unused */
#define CA_GART_PTR_ADDR (0xfffffffffffull << 12)
#define CA_GART_PTR_ADDR_SHFT 12
/* bits 63:56 unused */
/* ==== ca_gart_tlb_addr[0-7] */
#define CA_GART_TLB_ADDR (0xffffffffffffffull << 0)
#define CA_GART_TLB_ADDR_SHFT 0
/* bits 62:56 unused */
#define CA_GART_TLB_ENTRY_VAL (1ull << 63)
/*
* PIO address space ranges for TIO:CA
*/
/* CA internal registers */
#define CA_PIO_ADMIN 0x00000000
#define CA_PIO_ADMIN_LEN 0x00010000
/* GFX Write Buffer - Diagnostics */
#define CA_PIO_GFX 0x00010000
#define CA_PIO_GFX_LEN 0x00010000
/* AGP DMA Write Buffer - Diagnostics */
#define CA_PIO_AGP_DMAWRITE 0x00020000
#define CA_PIO_AGP_DMAWRITE_LEN 0x00010000
/* AGP DMA READ Buffer - Diagnostics */
#define CA_PIO_AGP_DMAREAD 0x00030000
#define CA_PIO_AGP_DMAREAD_LEN 0x00010000
/* PCI Config Type 0 */
#define CA_PIO_PCI_TYPE0_CONFIG 0x01000000
#define CA_PIO_PCI_TYPE0_CONFIG_LEN 0x01000000
/* PCI Config Type 1 */
#define CA_PIO_PCI_TYPE1_CONFIG 0x02000000
#define CA_PIO_PCI_TYPE1_CONFIG_LEN 0x01000000
/* PCI I/O Cycles - mapped to PCI Address 0x00000000-0x04ffffff */
#define CA_PIO_PCI_IO 0x03000000
#define CA_PIO_PCI_IO_LEN 0x05000000
/* PCI MEM Cycles - mapped to PCI with CA_PIO_ADDR_OFFSET of ca_control1 */
/* use Fast Write if enabled and coretalk packet type is a GFX request */
#define CA_PIO_PCI_MEM_OFFSET 0x08000000
#define CA_PIO_PCI_MEM_OFFSET_LEN 0x08000000
/* PCI MEM Cycles - mapped to PCI Address 0x00000000-0xbfffffff */
/* use Fast Write if enabled and coretalk packet type is a GFX request */
#define CA_PIO_PCI_MEM 0x40000000
#define CA_PIO_PCI_MEM_LEN 0xc0000000
/*
* DMA space
*
* The CA aperature (ie. bus address range) mapped by the GART is segmented into
* two parts. The lower portion of the aperature is used for mapping 32 bit
* PCI addresses which are managed by the dma interfaces in this file. The
* upper poprtion of the aperature is used for mapping 48 bit AGP addresses.
* The AGP portion of the aperature is managed by the agpgart_be.c driver
* in drivers/linux/agp. There are ca-specific hooks in that driver to
* manipulate the gart, but management of the AGP portion of the aperature
* is the responsibility of that driver.
*
* CA allows three main types of DMA mapping:
*
* PCI 64-bit Managed by this driver
* PCI 32-bit Managed by this driver
* AGP 48-bit Managed by hooks in the /dev/agpgart driver
*
* All of the above can optionally be remapped through the GART. The following
* table lists the combinations of addressing types and GART remapping that
* is currently supported by the driver (h/w supports all, s/w limits this):
*
* PCI64 PCI32 AGP48
* GART no yes yes
* Direct yes yes no
*
* GART remapping of PCI64 is not done because there is no need to. The
* 64 bit PCI address holds all of the information necessary to target any
* memory in the system.
*
* AGP48 is always mapped through the GART. Management of the AGP48 portion
* of the aperature is the responsibility of code in the agpgart_be driver.
*
* The non-64 bit bus address space will currently be partitioned like this:
*
* 0xffff_ffff_ffff +--------
* | AGP48 direct
* | Space managed by this driver
* CA_AGP_DIRECT_BASE +--------
* | AGP GART mapped (gfx aperature)
* | Space managed by /dev/agpgart driver
* | This range is exposed to the agpgart
* | driver as the "graphics aperature"
* CA_AGP_MAPPED_BASE +-----
* | PCI GART mapped
* | Space managed by this driver
* CA_PCI32_MAPPED_BASE +----
* | PCI32 direct
* | Space managed by this driver
* 0xC000_0000 +--------
* (CA_PCI32_DIRECT_BASE)
*
* The bus address range CA_PCI32_MAPPED_BASE through CA_AGP_DIRECT_BASE
* is what we call the CA aperature. Addresses falling in this range will
* be remapped using the GART.
*
* The bus address range CA_AGP_MAPPED_BASE through CA_AGP_DIRECT_BASE
* is what we call the graphics aperature. This is a subset of the CA
* aperature and is under the control of the agpgart_be driver.
*
* CA_PCI32_MAPPED_BASE, CA_AGP_MAPPED_BASE, and CA_AGP_DIRECT_BASE are
* somewhat arbitrary values. The known constraints on choosing these is:
*
* 1) CA_AGP_DIRECT_BASE-CA_PCI32_MAPPED_BASE+1 (the CA aperature size)
* must be one of the values supported by the ca_gart_aperature register.
* Currently valid values are: 4MB through 4096MB in powers of 2 increments
*
* 2) CA_AGP_DIRECT_BASE-CA_AGP_MAPPED_BASE+1 (the gfx aperature size)
* must be in MB units since that's what the agpgart driver assumes.
*/
/*
* Define Bus DMA ranges. These are configurable (see constraints above)
* and will probably need tuning based on experience.
*/
/*
* 11/24/03
* CA has an addressing glitch w.r.t. PCI direct 32 bit DMA that makes it
* generally unusable. The problem is that for PCI direct 32
* DMA's, all 32 bits of the bus address are used to form the lower 32 bits
* of the coretalk address, and coretalk bits 38:32 come from a register.
* Since only PCI bus addresses 0xC0000000-0xFFFFFFFF (1GB) are available
* for DMA (the rest is allocated to PIO), host node addresses need to be
* such that their lower 32 bits fall in the 0xC0000000-0xffffffff range
* as well. So there can be no PCI32 direct DMA below 3GB!! For this
* reason we set the CA_PCI32_DIRECT_SIZE to 0 which essentially makes
* tioca_dma_direct32() a noop but preserves the code flow should this issue
* be fixed in a respin.
*
* For now, all PCI32 DMA's must be mapped through the GART.
*/
#define CA_PCI32_DIRECT_BASE 0xC0000000UL
/* BASE not configurable */
#define CA_PCI32_DIRECT_SIZE 0x00000000UL
/* 0 MB */
#define CA_PCI32_MAPPED_BASE 0xC0000000UL
#define CA_PCI32_MAPPED_SIZE 0x40000000UL
/* 2GB */
#define CA_AGP_MAPPED_BASE 0x80000000UL
#define CA_AGP_MAPPED_SIZE 0x40000000UL
/* 2GB */
#define CA_AGP_DIRECT_BASE 0x40000000UL
/* 2GB */
#define CA_AGP_DIRECT_SIZE 0x40000000UL
#define CA_APERATURE_BASE (CA_AGP_MAPPED_BASE)
#define CA_APERATURE_SIZE (CA_AGP_MAPPED_SIZE+CA_PCI32_MAPPED_SIZE)
#endif /* _ASM_IA64_SN_TIO_TIOCA_H */
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