forked from luck/tmp_suning_uos_patched
025a22151c
This code replaces earlier and incomplete handling of graphics on non-zero PCI domains (aka hoses or peer PCI buses). An option (CONFIG_VGA_HOSE) is set TRUE if configuring a GENERIC kernel, or a kernel for MARVEL, TITAN, or TSUNAMI machines, as these are the machines whose SRM consoles are capable of configuring and handling graphics options on non-zero hoses. All other machines have the option set FALSE. A routine, "find_console_vga_hose()", is used to find the graphics device which the machine's firmware believes is the console device, and it sets a global (pci_vga_hose) for later use in managing access to the device. This is called in "init_arch" on TITAN and TSUNAMI machines; MARVEL machines use a custom version of this routine because of extra complexity. A routine, "locate_and_init_vga()", is used to find the graphics device and set a global (pci_vga_hose) for later use in managing access to the device, in the case where "find_console_vga_hose" has failed. Various adjustments are made to the ioremap and ioportmap routines for detecting and translating "legacy" VGA register and memory references to the real PCI domain. [akpm@linux-foundation.org: don't statically init bss] [akpm@linux-foundation.org: build fix] Signed-off-by: Jay Estabrook <jay.estabrook@hp.com> Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Richard Henderson <rth@twiddle.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
336 lines
8.3 KiB
C
336 lines
8.3 KiB
C
#ifndef __ALPHA_TSUNAMI__H__
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#define __ALPHA_TSUNAMI__H__
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#include <linux/types.h>
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#include <linux/pci.h>
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#include <asm/compiler.h>
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/*
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* TSUNAMI/TYPHOON are the internal names for the core logic chipset which
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* provides memory controller and PCI access for the 21264 based systems.
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*
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* This file is based on:
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*
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* Tsunami System Programmers Manual
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* Preliminary, Chapters 2-5
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*
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*/
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/* XXX: Do we need to conditionalize on this? */
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#ifdef USE_48_BIT_KSEG
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#define TS_BIAS 0x80000000000UL
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#else
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#define TS_BIAS 0x10000000000UL
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#endif
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/*
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* CChip, DChip, and PChip registers
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*/
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typedef struct {
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volatile unsigned long csr __attribute__((aligned(64)));
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} tsunami_64;
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typedef struct {
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tsunami_64 csc;
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tsunami_64 mtr;
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tsunami_64 misc;
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tsunami_64 mpd;
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tsunami_64 aar0;
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tsunami_64 aar1;
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tsunami_64 aar2;
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tsunami_64 aar3;
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tsunami_64 dim0;
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tsunami_64 dim1;
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tsunami_64 dir0;
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tsunami_64 dir1;
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tsunami_64 drir;
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tsunami_64 prben;
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tsunami_64 iic; /* a.k.a. iic0 */
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tsunami_64 wdr; /* a.k.a. iic1 */
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tsunami_64 mpr0;
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tsunami_64 mpr1;
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tsunami_64 mpr2;
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tsunami_64 mpr3;
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tsunami_64 mctl;
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tsunami_64 __pad1;
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tsunami_64 ttr;
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tsunami_64 tdr;
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tsunami_64 dim2;
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tsunami_64 dim3;
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tsunami_64 dir2;
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tsunami_64 dir3;
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tsunami_64 iic2;
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tsunami_64 iic3;
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} tsunami_cchip;
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typedef struct {
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tsunami_64 dsc;
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tsunami_64 str;
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tsunami_64 drev;
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} tsunami_dchip;
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typedef struct {
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tsunami_64 wsba[4];
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tsunami_64 wsm[4];
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tsunami_64 tba[4];
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tsunami_64 pctl;
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tsunami_64 plat;
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tsunami_64 reserved;
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tsunami_64 perror;
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tsunami_64 perrmask;
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tsunami_64 perrset;
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tsunami_64 tlbiv;
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tsunami_64 tlbia;
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tsunami_64 pmonctl;
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tsunami_64 pmoncnt;
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} tsunami_pchip;
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#define TSUNAMI_cchip ((tsunami_cchip *)(IDENT_ADDR+TS_BIAS+0x1A0000000UL))
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#define TSUNAMI_dchip ((tsunami_dchip *)(IDENT_ADDR+TS_BIAS+0x1B0000800UL))
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#define TSUNAMI_pchip0 ((tsunami_pchip *)(IDENT_ADDR+TS_BIAS+0x180000000UL))
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#define TSUNAMI_pchip1 ((tsunami_pchip *)(IDENT_ADDR+TS_BIAS+0x380000000UL))
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extern int TSUNAMI_bootcpu;
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/*
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* TSUNAMI Pchip Error register.
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*/
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#define perror_m_lost 0x1
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#define perror_m_serr 0x2
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#define perror_m_perr 0x4
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#define perror_m_dcrto 0x8
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#define perror_m_sge 0x10
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#define perror_m_ape 0x20
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#define perror_m_ta 0x40
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#define perror_m_rdpe 0x80
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#define perror_m_nds 0x100
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#define perror_m_rto 0x200
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#define perror_m_uecc 0x400
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#define perror_m_cre 0x800
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#define perror_m_addrl 0xFFFFFFFF0000UL
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#define perror_m_addrh 0x7000000000000UL
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#define perror_m_cmd 0xF0000000000000UL
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#define perror_m_syn 0xFF00000000000000UL
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union TPchipPERROR {
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struct {
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unsigned int perror_v_lost : 1;
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unsigned perror_v_serr : 1;
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unsigned perror_v_perr : 1;
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unsigned perror_v_dcrto : 1;
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unsigned perror_v_sge : 1;
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unsigned perror_v_ape : 1;
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unsigned perror_v_ta : 1;
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unsigned perror_v_rdpe : 1;
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unsigned perror_v_nds : 1;
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unsigned perror_v_rto : 1;
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unsigned perror_v_uecc : 1;
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unsigned perror_v_cre : 1;
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unsigned perror_v_rsvd1 : 4;
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unsigned perror_v_addrl : 32;
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unsigned perror_v_addrh : 3;
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unsigned perror_v_rsvd2 : 1;
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unsigned perror_v_cmd : 4;
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unsigned perror_v_syn : 8;
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} perror_r_bits;
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int perror_q_whole [2];
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};
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/*
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* TSUNAMI Pchip Window Space Base Address register.
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*/
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#define wsba_m_ena 0x1
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#define wsba_m_sg 0x2
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#define wsba_m_ptp 0x4
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#define wsba_m_addr 0xFFF00000
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#define wmask_k_sz1gb 0x3FF00000
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union TPchipWSBA {
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struct {
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unsigned wsba_v_ena : 1;
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unsigned wsba_v_sg : 1;
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unsigned wsba_v_ptp : 1;
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unsigned wsba_v_rsvd1 : 17;
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unsigned wsba_v_addr : 12;
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unsigned wsba_v_rsvd2 : 32;
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} wsba_r_bits;
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int wsba_q_whole [2];
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};
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/*
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* TSUNAMI Pchip Control Register
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*/
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#define pctl_m_fdsc 0x1
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#define pctl_m_fbtb 0x2
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#define pctl_m_thdis 0x4
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#define pctl_m_chaindis 0x8
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#define pctl_m_tgtlat 0x10
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#define pctl_m_hole 0x20
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#define pctl_m_mwin 0x40
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#define pctl_m_arbena 0x80
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#define pctl_m_prigrp 0x7F00
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#define pctl_m_ppri 0x8000
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#define pctl_m_rsvd1 0x30000
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#define pctl_m_eccen 0x40000
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#define pctl_m_padm 0x80000
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#define pctl_m_cdqmax 0xF00000
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#define pctl_m_rev 0xFF000000
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#define pctl_m_crqmax 0xF00000000UL
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#define pctl_m_ptpmax 0xF000000000UL
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#define pctl_m_pclkx 0x30000000000UL
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#define pctl_m_fdsdis 0x40000000000UL
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#define pctl_m_fdwdis 0x80000000000UL
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#define pctl_m_ptevrfy 0x100000000000UL
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#define pctl_m_rpp 0x200000000000UL
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#define pctl_m_pid 0xC00000000000UL
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#define pctl_m_rsvd2 0xFFFF000000000000UL
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union TPchipPCTL {
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struct {
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unsigned pctl_v_fdsc : 1;
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unsigned pctl_v_fbtb : 1;
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unsigned pctl_v_thdis : 1;
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unsigned pctl_v_chaindis : 1;
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unsigned pctl_v_tgtlat : 1;
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unsigned pctl_v_hole : 1;
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unsigned pctl_v_mwin : 1;
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unsigned pctl_v_arbena : 1;
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unsigned pctl_v_prigrp : 7;
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unsigned pctl_v_ppri : 1;
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unsigned pctl_v_rsvd1 : 2;
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unsigned pctl_v_eccen : 1;
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unsigned pctl_v_padm : 1;
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unsigned pctl_v_cdqmax : 4;
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unsigned pctl_v_rev : 8;
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unsigned pctl_v_crqmax : 4;
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unsigned pctl_v_ptpmax : 4;
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unsigned pctl_v_pclkx : 2;
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unsigned pctl_v_fdsdis : 1;
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unsigned pctl_v_fdwdis : 1;
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unsigned pctl_v_ptevrfy : 1;
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unsigned pctl_v_rpp : 1;
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unsigned pctl_v_pid : 2;
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unsigned pctl_v_rsvd2 : 16;
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} pctl_r_bits;
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int pctl_q_whole [2];
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};
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/*
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* TSUNAMI Pchip Error Mask Register.
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*/
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#define perrmask_m_lost 0x1
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#define perrmask_m_serr 0x2
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#define perrmask_m_perr 0x4
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#define perrmask_m_dcrto 0x8
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#define perrmask_m_sge 0x10
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#define perrmask_m_ape 0x20
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#define perrmask_m_ta 0x40
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#define perrmask_m_rdpe 0x80
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#define perrmask_m_nds 0x100
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#define perrmask_m_rto 0x200
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#define perrmask_m_uecc 0x400
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#define perrmask_m_cre 0x800
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#define perrmask_m_rsvd 0xFFFFFFFFFFFFF000UL
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union TPchipPERRMASK {
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struct {
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unsigned int perrmask_v_lost : 1;
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unsigned perrmask_v_serr : 1;
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unsigned perrmask_v_perr : 1;
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unsigned perrmask_v_dcrto : 1;
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unsigned perrmask_v_sge : 1;
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unsigned perrmask_v_ape : 1;
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unsigned perrmask_v_ta : 1;
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unsigned perrmask_v_rdpe : 1;
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unsigned perrmask_v_nds : 1;
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unsigned perrmask_v_rto : 1;
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unsigned perrmask_v_uecc : 1;
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unsigned perrmask_v_cre : 1;
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unsigned perrmask_v_rsvd1 : 20;
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unsigned perrmask_v_rsvd2 : 32;
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} perrmask_r_bits;
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int perrmask_q_whole [2];
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};
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/*
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* Memory spaces:
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*/
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#define TSUNAMI_HOSE(h) (((unsigned long)(h)) << 33)
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#define TSUNAMI_BASE (IDENT_ADDR + TS_BIAS)
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#define TSUNAMI_MEM(h) (TSUNAMI_BASE+TSUNAMI_HOSE(h) + 0x000000000UL)
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#define _TSUNAMI_IACK_SC(h) (TSUNAMI_BASE+TSUNAMI_HOSE(h) + 0x1F8000000UL)
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#define TSUNAMI_IO(h) (TSUNAMI_BASE+TSUNAMI_HOSE(h) + 0x1FC000000UL)
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#define TSUNAMI_CONF(h) (TSUNAMI_BASE+TSUNAMI_HOSE(h) + 0x1FE000000UL)
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#define TSUNAMI_IACK_SC _TSUNAMI_IACK_SC(0) /* hack! */
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/*
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* The canonical non-remaped I/O and MEM addresses have these values
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* subtracted out. This is arranged so that folks manipulating ISA
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* devices can use their familiar numbers and have them map to bus 0.
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*/
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#define TSUNAMI_IO_BIAS TSUNAMI_IO(0)
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#define TSUNAMI_MEM_BIAS TSUNAMI_MEM(0)
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/* The IO address space is larger than 0xffff */
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#define TSUNAMI_IO_SPACE (TSUNAMI_CONF(0) - TSUNAMI_IO(0))
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/* Offset between ram physical addresses and pci64 DAC bus addresses. */
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#define TSUNAMI_DAC_OFFSET (1UL << 40)
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/*
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* Data structure for handling TSUNAMI machine checks:
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*/
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struct el_TSUNAMI_sysdata_mcheck {
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};
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#ifdef __KERNEL__
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#ifndef __EXTERN_INLINE
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#define __EXTERN_INLINE extern inline
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#define __IO_EXTERN_INLINE
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#endif
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/*
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* I/O functions:
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*
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* TSUNAMI, the 21??? PCI/memory support chipset for the EV6 (21264)
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* can only use linear accesses to get at PCI memory and I/O spaces.
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*/
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/*
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* Memory functions. all accesses are done through linear space.
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*/
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extern void __iomem *tsunami_ioportmap(unsigned long addr);
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extern void __iomem *tsunami_ioremap(unsigned long addr, unsigned long size);
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__EXTERN_INLINE int tsunami_is_ioaddr(unsigned long addr)
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{
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return addr >= TSUNAMI_BASE;
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}
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__EXTERN_INLINE int tsunami_is_mmio(const volatile void __iomem *xaddr)
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{
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unsigned long addr = (unsigned long) xaddr;
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return (addr & 0x100000000UL) == 0;
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}
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#undef __IO_PREFIX
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#define __IO_PREFIX tsunami
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#define tsunami_trivial_rw_bw 1
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#define tsunami_trivial_rw_lq 1
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#define tsunami_trivial_io_bw 1
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#define tsunami_trivial_io_lq 1
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#define tsunami_trivial_iounmap 1
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#include <asm/io_trivial.h>
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#ifdef __IO_EXTERN_INLINE
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#undef __EXTERN_INLINE
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#undef __IO_EXTERN_INLINE
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#endif
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#endif /* __KERNEL__ */
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#endif /* __ALPHA_TSUNAMI__H__ */
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