b24413180f
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
614 lines
16 KiB
C
614 lines
16 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
||
/*
|
||
* linux/arch/alpha/kernel/core_mcpcia.c
|
||
*
|
||
* Based on code written by David A Rusling (david.rusling@reo.mts.dec.com).
|
||
*
|
||
* Code common to all MCbus-PCI Adaptor core logic chipsets
|
||
*/
|
||
|
||
#define __EXTERN_INLINE inline
|
||
#include <asm/io.h>
|
||
#include <asm/core_mcpcia.h>
|
||
#undef __EXTERN_INLINE
|
||
|
||
#include <linux/types.h>
|
||
#include <linux/pci.h>
|
||
#include <linux/sched.h>
|
||
#include <linux/init.h>
|
||
#include <linux/delay.h>
|
||
|
||
#include <asm/ptrace.h>
|
||
|
||
#include "proto.h"
|
||
#include "pci_impl.h"
|
||
|
||
/*
|
||
* NOTE: Herein lie back-to-back mb instructions. They are magic.
|
||
* One plausible explanation is that the i/o controller does not properly
|
||
* handle the system transaction. Another involves timing. Ho hum.
|
||
*/
|
||
|
||
/*
|
||
* BIOS32-style PCI interface:
|
||
*/
|
||
|
||
#define DEBUG_CFG 0
|
||
|
||
#if DEBUG_CFG
|
||
# define DBG_CFG(args) printk args
|
||
#else
|
||
# define DBG_CFG(args)
|
||
#endif
|
||
|
||
/*
|
||
* Given a bus, device, and function number, compute resulting
|
||
* configuration space address and setup the MCPCIA_HAXR2 register
|
||
* accordingly. It is therefore not safe to have concurrent
|
||
* invocations to configuration space access routines, but there
|
||
* really shouldn't be any need for this.
|
||
*
|
||
* Type 0:
|
||
*
|
||
* 3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1
|
||
* 3 2|1 0 9 8|7 6 5 4|3 2 1 0|9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0
|
||
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||
* | | |D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|F|F|F|R|R|R|R|R|R|0|0|
|
||
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||
*
|
||
* 31:11 Device select bit.
|
||
* 10:8 Function number
|
||
* 7:2 Register number
|
||
*
|
||
* Type 1:
|
||
*
|
||
* 3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1
|
||
* 3 2|1 0 9 8|7 6 5 4|3 2 1 0|9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0
|
||
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||
* | | | | | | | | | | |B|B|B|B|B|B|B|B|D|D|D|D|D|F|F|F|R|R|R|R|R|R|0|1|
|
||
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||
*
|
||
* 31:24 reserved
|
||
* 23:16 bus number (8 bits = 128 possible buses)
|
||
* 15:11 Device number (5 bits)
|
||
* 10:8 function number
|
||
* 7:2 register number
|
||
*
|
||
* Notes:
|
||
* The function number selects which function of a multi-function device
|
||
* (e.g., SCSI and Ethernet).
|
||
*
|
||
* The register selects a DWORD (32 bit) register offset. Hence it
|
||
* doesn't get shifted by 2 bits as we want to "drop" the bottom two
|
||
* bits.
|
||
*/
|
||
|
||
static unsigned int
|
||
conf_read(unsigned long addr, unsigned char type1,
|
||
struct pci_controller *hose)
|
||
{
|
||
unsigned long flags;
|
||
unsigned long mid = MCPCIA_HOSE2MID(hose->index);
|
||
unsigned int stat0, value, cpu;
|
||
|
||
cpu = smp_processor_id();
|
||
|
||
local_irq_save(flags);
|
||
|
||
DBG_CFG(("conf_read(addr=0x%lx, type1=%d, hose=%d)\n",
|
||
addr, type1, mid));
|
||
|
||
/* Reset status register to avoid losing errors. */
|
||
stat0 = *(vuip)MCPCIA_CAP_ERR(mid);
|
||
*(vuip)MCPCIA_CAP_ERR(mid) = stat0;
|
||
mb();
|
||
*(vuip)MCPCIA_CAP_ERR(mid);
|
||
DBG_CFG(("conf_read: MCPCIA_CAP_ERR(%d) was 0x%x\n", mid, stat0));
|
||
|
||
mb();
|
||
draina();
|
||
mcheck_expected(cpu) = 1;
|
||
mcheck_taken(cpu) = 0;
|
||
mcheck_extra(cpu) = mid;
|
||
mb();
|
||
|
||
/* Access configuration space. */
|
||
value = *((vuip)addr);
|
||
mb();
|
||
mb(); /* magic */
|
||
|
||
if (mcheck_taken(cpu)) {
|
||
mcheck_taken(cpu) = 0;
|
||
value = 0xffffffffU;
|
||
mb();
|
||
}
|
||
mcheck_expected(cpu) = 0;
|
||
mb();
|
||
|
||
DBG_CFG(("conf_read(): finished\n"));
|
||
|
||
local_irq_restore(flags);
|
||
return value;
|
||
}
|
||
|
||
static void
|
||
conf_write(unsigned long addr, unsigned int value, unsigned char type1,
|
||
struct pci_controller *hose)
|
||
{
|
||
unsigned long flags;
|
||
unsigned long mid = MCPCIA_HOSE2MID(hose->index);
|
||
unsigned int stat0, cpu;
|
||
|
||
cpu = smp_processor_id();
|
||
|
||
local_irq_save(flags); /* avoid getting hit by machine check */
|
||
|
||
/* Reset status register to avoid losing errors. */
|
||
stat0 = *(vuip)MCPCIA_CAP_ERR(mid);
|
||
*(vuip)MCPCIA_CAP_ERR(mid) = stat0; mb();
|
||
*(vuip)MCPCIA_CAP_ERR(mid);
|
||
DBG_CFG(("conf_write: MCPCIA CAP_ERR(%d) was 0x%x\n", mid, stat0));
|
||
|
||
draina();
|
||
mcheck_expected(cpu) = 1;
|
||
mcheck_extra(cpu) = mid;
|
||
mb();
|
||
|
||
/* Access configuration space. */
|
||
*((vuip)addr) = value;
|
||
mb();
|
||
mb(); /* magic */
|
||
*(vuip)MCPCIA_CAP_ERR(mid); /* read to force the write */
|
||
mcheck_expected(cpu) = 0;
|
||
mb();
|
||
|
||
DBG_CFG(("conf_write(): finished\n"));
|
||
local_irq_restore(flags);
|
||
}
|
||
|
||
static int
|
||
mk_conf_addr(struct pci_bus *pbus, unsigned int devfn, int where,
|
||
struct pci_controller *hose, unsigned long *pci_addr,
|
||
unsigned char *type1)
|
||
{
|
||
u8 bus = pbus->number;
|
||
unsigned long addr;
|
||
|
||
DBG_CFG(("mk_conf_addr(bus=%d,devfn=0x%x,hose=%d,where=0x%x,"
|
||
" pci_addr=0x%p, type1=0x%p)\n",
|
||
bus, devfn, hose->index, where, pci_addr, type1));
|
||
|
||
/* Type 1 configuration cycle for *ALL* busses. */
|
||
*type1 = 1;
|
||
|
||
if (!pbus->parent) /* No parent means peer PCI bus. */
|
||
bus = 0;
|
||
addr = (bus << 16) | (devfn << 8) | (where);
|
||
addr <<= 5; /* swizzle for SPARSE */
|
||
addr |= hose->config_space_base;
|
||
|
||
*pci_addr = addr;
|
||
DBG_CFG(("mk_conf_addr: returning pci_addr 0x%lx\n", addr));
|
||
return 0;
|
||
}
|
||
|
||
static int
|
||
mcpcia_read_config(struct pci_bus *bus, unsigned int devfn, int where,
|
||
int size, u32 *value)
|
||
{
|
||
struct pci_controller *hose = bus->sysdata;
|
||
unsigned long addr, w;
|
||
unsigned char type1;
|
||
|
||
if (mk_conf_addr(bus, devfn, where, hose, &addr, &type1))
|
||
return PCIBIOS_DEVICE_NOT_FOUND;
|
||
|
||
addr |= (size - 1) * 8;
|
||
w = conf_read(addr, type1, hose);
|
||
switch (size) {
|
||
case 1:
|
||
*value = __kernel_extbl(w, where & 3);
|
||
break;
|
||
case 2:
|
||
*value = __kernel_extwl(w, where & 3);
|
||
break;
|
||
case 4:
|
||
*value = w;
|
||
break;
|
||
}
|
||
return PCIBIOS_SUCCESSFUL;
|
||
}
|
||
|
||
static int
|
||
mcpcia_write_config(struct pci_bus *bus, unsigned int devfn, int where,
|
||
int size, u32 value)
|
||
{
|
||
struct pci_controller *hose = bus->sysdata;
|
||
unsigned long addr;
|
||
unsigned char type1;
|
||
|
||
if (mk_conf_addr(bus, devfn, where, hose, &addr, &type1))
|
||
return PCIBIOS_DEVICE_NOT_FOUND;
|
||
|
||
addr |= (size - 1) * 8;
|
||
value = __kernel_insql(value, where & 3);
|
||
conf_write(addr, value, type1, hose);
|
||
return PCIBIOS_SUCCESSFUL;
|
||
}
|
||
|
||
struct pci_ops mcpcia_pci_ops =
|
||
{
|
||
.read = mcpcia_read_config,
|
||
.write = mcpcia_write_config,
|
||
};
|
||
|
||
void
|
||
mcpcia_pci_tbi(struct pci_controller *hose, dma_addr_t start, dma_addr_t end)
|
||
{
|
||
wmb();
|
||
*(vuip)MCPCIA_SG_TBIA(MCPCIA_HOSE2MID(hose->index)) = 0;
|
||
mb();
|
||
}
|
||
|
||
static int __init
|
||
mcpcia_probe_hose(int h)
|
||
{
|
||
int cpu = smp_processor_id();
|
||
int mid = MCPCIA_HOSE2MID(h);
|
||
unsigned int pci_rev;
|
||
|
||
/* Gotta be REAL careful. If hose is absent, we get an mcheck. */
|
||
|
||
mb();
|
||
mb();
|
||
draina();
|
||
wrmces(7);
|
||
|
||
mcheck_expected(cpu) = 2; /* indicates probing */
|
||
mcheck_taken(cpu) = 0;
|
||
mcheck_extra(cpu) = mid;
|
||
mb();
|
||
|
||
/* Access the bus revision word. */
|
||
pci_rev = *(vuip)MCPCIA_REV(mid);
|
||
|
||
mb();
|
||
mb(); /* magic */
|
||
if (mcheck_taken(cpu)) {
|
||
mcheck_taken(cpu) = 0;
|
||
pci_rev = 0xffffffff;
|
||
mb();
|
||
}
|
||
mcheck_expected(cpu) = 0;
|
||
mb();
|
||
|
||
return (pci_rev >> 16) == PCI_CLASS_BRIDGE_HOST;
|
||
}
|
||
|
||
static void __init
|
||
mcpcia_new_hose(int h)
|
||
{
|
||
struct pci_controller *hose;
|
||
struct resource *io, *mem, *hae_mem;
|
||
int mid = MCPCIA_HOSE2MID(h);
|
||
|
||
hose = alloc_pci_controller();
|
||
if (h == 0)
|
||
pci_isa_hose = hose;
|
||
io = alloc_resource();
|
||
mem = alloc_resource();
|
||
hae_mem = alloc_resource();
|
||
|
||
hose->io_space = io;
|
||
hose->mem_space = hae_mem;
|
||
hose->sparse_mem_base = MCPCIA_SPARSE(mid) - IDENT_ADDR;
|
||
hose->dense_mem_base = MCPCIA_DENSE(mid) - IDENT_ADDR;
|
||
hose->sparse_io_base = MCPCIA_IO(mid) - IDENT_ADDR;
|
||
hose->dense_io_base = 0;
|
||
hose->config_space_base = MCPCIA_CONF(mid);
|
||
hose->index = h;
|
||
|
||
io->start = MCPCIA_IO(mid) - MCPCIA_IO_BIAS;
|
||
io->end = io->start + 0xffff;
|
||
io->name = pci_io_names[h];
|
||
io->flags = IORESOURCE_IO;
|
||
|
||
mem->start = MCPCIA_DENSE(mid) - MCPCIA_MEM_BIAS;
|
||
mem->end = mem->start + 0xffffffff;
|
||
mem->name = pci_mem_names[h];
|
||
mem->flags = IORESOURCE_MEM;
|
||
|
||
hae_mem->start = mem->start;
|
||
hae_mem->end = mem->start + MCPCIA_MEM_MASK;
|
||
hae_mem->name = pci_hae0_name;
|
||
hae_mem->flags = IORESOURCE_MEM;
|
||
|
||
if (request_resource(&ioport_resource, io) < 0)
|
||
printk(KERN_ERR "Failed to request IO on hose %d\n", h);
|
||
if (request_resource(&iomem_resource, mem) < 0)
|
||
printk(KERN_ERR "Failed to request MEM on hose %d\n", h);
|
||
if (request_resource(mem, hae_mem) < 0)
|
||
printk(KERN_ERR "Failed to request HAE_MEM on hose %d\n", h);
|
||
}
|
||
|
||
static void
|
||
mcpcia_pci_clr_err(int mid)
|
||
{
|
||
*(vuip)MCPCIA_CAP_ERR(mid);
|
||
*(vuip)MCPCIA_CAP_ERR(mid) = 0xffffffff; /* Clear them all. */
|
||
mb();
|
||
*(vuip)MCPCIA_CAP_ERR(mid); /* Re-read for force write. */
|
||
}
|
||
|
||
static void __init
|
||
mcpcia_startup_hose(struct pci_controller *hose)
|
||
{
|
||
int mid = MCPCIA_HOSE2MID(hose->index);
|
||
unsigned int tmp;
|
||
|
||
mcpcia_pci_clr_err(mid);
|
||
|
||
/*
|
||
* Set up error reporting.
|
||
*/
|
||
tmp = *(vuip)MCPCIA_CAP_ERR(mid);
|
||
tmp |= 0x0006; /* master/target abort */
|
||
*(vuip)MCPCIA_CAP_ERR(mid) = tmp;
|
||
mb();
|
||
tmp = *(vuip)MCPCIA_CAP_ERR(mid);
|
||
|
||
/*
|
||
* Set up the PCI->physical memory translation windows.
|
||
*
|
||
* Window 0 is scatter-gather 8MB at 8MB (for isa)
|
||
* Window 1 is scatter-gather (up to) 1GB at 1GB (for pci)
|
||
* Window 2 is direct access 2GB at 2GB
|
||
*/
|
||
hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000, 0);
|
||
hose->sg_pci = iommu_arena_new(hose, 0x40000000,
|
||
size_for_memory(0x40000000), 0);
|
||
|
||
__direct_map_base = 0x80000000;
|
||
__direct_map_size = 0x80000000;
|
||
|
||
*(vuip)MCPCIA_W0_BASE(mid) = hose->sg_isa->dma_base | 3;
|
||
*(vuip)MCPCIA_W0_MASK(mid) = (hose->sg_isa->size - 1) & 0xfff00000;
|
||
*(vuip)MCPCIA_T0_BASE(mid) = virt_to_phys(hose->sg_isa->ptes) >> 8;
|
||
|
||
*(vuip)MCPCIA_W1_BASE(mid) = hose->sg_pci->dma_base | 3;
|
||
*(vuip)MCPCIA_W1_MASK(mid) = (hose->sg_pci->size - 1) & 0xfff00000;
|
||
*(vuip)MCPCIA_T1_BASE(mid) = virt_to_phys(hose->sg_pci->ptes) >> 8;
|
||
|
||
*(vuip)MCPCIA_W2_BASE(mid) = __direct_map_base | 1;
|
||
*(vuip)MCPCIA_W2_MASK(mid) = (__direct_map_size - 1) & 0xfff00000;
|
||
*(vuip)MCPCIA_T2_BASE(mid) = 0;
|
||
|
||
*(vuip)MCPCIA_W3_BASE(mid) = 0x0;
|
||
|
||
mcpcia_pci_tbi(hose, 0, -1);
|
||
|
||
*(vuip)MCPCIA_HBASE(mid) = 0x0;
|
||
mb();
|
||
|
||
*(vuip)MCPCIA_HAE_MEM(mid) = 0U;
|
||
mb();
|
||
*(vuip)MCPCIA_HAE_MEM(mid); /* read it back. */
|
||
*(vuip)MCPCIA_HAE_IO(mid) = 0;
|
||
mb();
|
||
*(vuip)MCPCIA_HAE_IO(mid); /* read it back. */
|
||
}
|
||
|
||
void __init
|
||
mcpcia_init_arch(void)
|
||
{
|
||
/* With multiple PCI busses, we play with I/O as physical addrs. */
|
||
ioport_resource.end = ~0UL;
|
||
|
||
/* Allocate hose 0. That's the one that all the ISA junk hangs
|
||
off of, from which we'll be registering stuff here in a bit.
|
||
Other hose detection is done in mcpcia_init_hoses, which is
|
||
called from init_IRQ. */
|
||
|
||
mcpcia_new_hose(0);
|
||
}
|
||
|
||
/* This is called from init_IRQ, since we cannot take interrupts
|
||
before then. Which means we cannot do this in init_arch. */
|
||
|
||
void __init
|
||
mcpcia_init_hoses(void)
|
||
{
|
||
struct pci_controller *hose;
|
||
int hose_count;
|
||
int h;
|
||
|
||
/* First, find how many hoses we have. */
|
||
hose_count = 0;
|
||
for (h = 0; h < MCPCIA_MAX_HOSES; ++h) {
|
||
if (mcpcia_probe_hose(h)) {
|
||
if (h != 0)
|
||
mcpcia_new_hose(h);
|
||
hose_count++;
|
||
}
|
||
}
|
||
|
||
printk("mcpcia_init_hoses: found %d hoses\n", hose_count);
|
||
|
||
/* Now do init for each hose. */
|
||
for (hose = hose_head; hose; hose = hose->next)
|
||
mcpcia_startup_hose(hose);
|
||
}
|
||
|
||
static void
|
||
mcpcia_print_uncorrectable(struct el_MCPCIA_uncorrected_frame_mcheck *logout)
|
||
{
|
||
struct el_common_EV5_uncorrectable_mcheck *frame;
|
||
int i;
|
||
|
||
frame = &logout->procdata;
|
||
|
||
/* Print PAL fields */
|
||
for (i = 0; i < 24; i += 2) {
|
||
printk(" paltmp[%d-%d] = %16lx %16lx\n",
|
||
i, i+1, frame->paltemp[i], frame->paltemp[i+1]);
|
||
}
|
||
for (i = 0; i < 8; i += 2) {
|
||
printk(" shadow[%d-%d] = %16lx %16lx\n",
|
||
i, i+1, frame->shadow[i],
|
||
frame->shadow[i+1]);
|
||
}
|
||
printk(" Addr of excepting instruction = %16lx\n",
|
||
frame->exc_addr);
|
||
printk(" Summary of arithmetic traps = %16lx\n",
|
||
frame->exc_sum);
|
||
printk(" Exception mask = %16lx\n",
|
||
frame->exc_mask);
|
||
printk(" Base address for PALcode = %16lx\n",
|
||
frame->pal_base);
|
||
printk(" Interrupt Status Reg = %16lx\n",
|
||
frame->isr);
|
||
printk(" CURRENT SETUP OF EV5 IBOX = %16lx\n",
|
||
frame->icsr);
|
||
printk(" I-CACHE Reg %s parity error = %16lx\n",
|
||
(frame->ic_perr_stat & 0x800L) ?
|
||
"Data" : "Tag",
|
||
frame->ic_perr_stat);
|
||
printk(" D-CACHE error Reg = %16lx\n",
|
||
frame->dc_perr_stat);
|
||
if (frame->dc_perr_stat & 0x2) {
|
||
switch (frame->dc_perr_stat & 0x03c) {
|
||
case 8:
|
||
printk(" Data error in bank 1\n");
|
||
break;
|
||
case 4:
|
||
printk(" Data error in bank 0\n");
|
||
break;
|
||
case 20:
|
||
printk(" Tag error in bank 1\n");
|
||
break;
|
||
case 10:
|
||
printk(" Tag error in bank 0\n");
|
||
break;
|
||
}
|
||
}
|
||
printk(" Effective VA = %16lx\n",
|
||
frame->va);
|
||
printk(" Reason for D-stream = %16lx\n",
|
||
frame->mm_stat);
|
||
printk(" EV5 SCache address = %16lx\n",
|
||
frame->sc_addr);
|
||
printk(" EV5 SCache TAG/Data parity = %16lx\n",
|
||
frame->sc_stat);
|
||
printk(" EV5 BC_TAG_ADDR = %16lx\n",
|
||
frame->bc_tag_addr);
|
||
printk(" EV5 EI_ADDR: Phys addr of Xfer = %16lx\n",
|
||
frame->ei_addr);
|
||
printk(" Fill Syndrome = %16lx\n",
|
||
frame->fill_syndrome);
|
||
printk(" EI_STAT reg = %16lx\n",
|
||
frame->ei_stat);
|
||
printk(" LD_LOCK = %16lx\n",
|
||
frame->ld_lock);
|
||
}
|
||
|
||
static void
|
||
mcpcia_print_system_area(unsigned long la_ptr)
|
||
{
|
||
struct el_common *frame;
|
||
struct pci_controller *hose;
|
||
|
||
struct IOD_subpacket {
|
||
unsigned long base;
|
||
unsigned int whoami;
|
||
unsigned int rsvd1;
|
||
unsigned int pci_rev;
|
||
unsigned int cap_ctrl;
|
||
unsigned int hae_mem;
|
||
unsigned int hae_io;
|
||
unsigned int int_ctl;
|
||
unsigned int int_reg;
|
||
unsigned int int_mask0;
|
||
unsigned int int_mask1;
|
||
unsigned int mc_err0;
|
||
unsigned int mc_err1;
|
||
unsigned int cap_err;
|
||
unsigned int rsvd2;
|
||
unsigned int pci_err1;
|
||
unsigned int mdpa_stat;
|
||
unsigned int mdpa_syn;
|
||
unsigned int mdpb_stat;
|
||
unsigned int mdpb_syn;
|
||
unsigned int rsvd3;
|
||
unsigned int rsvd4;
|
||
unsigned int rsvd5;
|
||
} *iodpp;
|
||
|
||
frame = (struct el_common *)la_ptr;
|
||
iodpp = (struct IOD_subpacket *) (la_ptr + frame->sys_offset);
|
||
|
||
for (hose = hose_head; hose; hose = hose->next, iodpp++) {
|
||
|
||
printk("IOD %d Register Subpacket - Bridge Base Address %16lx\n",
|
||
hose->index, iodpp->base);
|
||
printk(" WHOAMI = %8x\n", iodpp->whoami);
|
||
printk(" PCI_REV = %8x\n", iodpp->pci_rev);
|
||
printk(" CAP_CTRL = %8x\n", iodpp->cap_ctrl);
|
||
printk(" HAE_MEM = %8x\n", iodpp->hae_mem);
|
||
printk(" HAE_IO = %8x\n", iodpp->hae_io);
|
||
printk(" INT_CTL = %8x\n", iodpp->int_ctl);
|
||
printk(" INT_REG = %8x\n", iodpp->int_reg);
|
||
printk(" INT_MASK0 = %8x\n", iodpp->int_mask0);
|
||
printk(" INT_MASK1 = %8x\n", iodpp->int_mask1);
|
||
printk(" MC_ERR0 = %8x\n", iodpp->mc_err0);
|
||
printk(" MC_ERR1 = %8x\n", iodpp->mc_err1);
|
||
printk(" CAP_ERR = %8x\n", iodpp->cap_err);
|
||
printk(" PCI_ERR1 = %8x\n", iodpp->pci_err1);
|
||
printk(" MDPA_STAT = %8x\n", iodpp->mdpa_stat);
|
||
printk(" MDPA_SYN = %8x\n", iodpp->mdpa_syn);
|
||
printk(" MDPB_STAT = %8x\n", iodpp->mdpb_stat);
|
||
printk(" MDPB_SYN = %8x\n", iodpp->mdpb_syn);
|
||
}
|
||
}
|
||
|
||
void
|
||
mcpcia_machine_check(unsigned long vector, unsigned long la_ptr)
|
||
{
|
||
struct el_MCPCIA_uncorrected_frame_mcheck *mchk_logout;
|
||
unsigned int cpu = smp_processor_id();
|
||
int expected;
|
||
|
||
mchk_logout = (struct el_MCPCIA_uncorrected_frame_mcheck *)la_ptr;
|
||
expected = mcheck_expected(cpu);
|
||
|
||
mb();
|
||
mb(); /* magic */
|
||
draina();
|
||
|
||
switch (expected) {
|
||
case 0:
|
||
{
|
||
/* FIXME: how do we figure out which hose the
|
||
error was on? */
|
||
struct pci_controller *hose;
|
||
for (hose = hose_head; hose; hose = hose->next)
|
||
mcpcia_pci_clr_err(MCPCIA_HOSE2MID(hose->index));
|
||
break;
|
||
}
|
||
case 1:
|
||
mcpcia_pci_clr_err(mcheck_extra(cpu));
|
||
break;
|
||
default:
|
||
/* Otherwise, we're being called from mcpcia_probe_hose
|
||
and there's no hose clear an error from. */
|
||
break;
|
||
}
|
||
|
||
wrmces(0x7);
|
||
mb();
|
||
|
||
process_mcheck_info(vector, la_ptr, "MCPCIA", expected != 0);
|
||
if (!expected && vector != 0x620 && vector != 0x630) {
|
||
mcpcia_print_uncorrectable(mchk_logout);
|
||
mcpcia_print_system_area(la_ptr);
|
||
}
|
||
}
|