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https://github.com/edk2-porting/linux-next.git
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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>
844 lines
21 KiB
C
844 lines
21 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/init.h>
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#include <linux/of.h>
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#include <linux/of_platform.h>
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#include <asm/oplib.h>
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#include <asm/prom.h>
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#include <asm/irq.h>
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#include <asm/upa.h>
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#include "prom.h"
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#ifdef CONFIG_PCI
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/* PSYCHO interrupt mapping support. */
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#define PSYCHO_IMAP_A_SLOT0 0x0c00UL
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#define PSYCHO_IMAP_B_SLOT0 0x0c20UL
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static unsigned long psycho_pcislot_imap_offset(unsigned long ino)
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{
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unsigned int bus = (ino & 0x10) >> 4;
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unsigned int slot = (ino & 0x0c) >> 2;
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if (bus == 0)
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return PSYCHO_IMAP_A_SLOT0 + (slot * 8);
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else
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return PSYCHO_IMAP_B_SLOT0 + (slot * 8);
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}
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#define PSYCHO_OBIO_IMAP_BASE 0x1000UL
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#define PSYCHO_ONBOARD_IRQ_BASE 0x20
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#define psycho_onboard_imap_offset(__ino) \
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(PSYCHO_OBIO_IMAP_BASE + (((__ino) & 0x1f) << 3))
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#define PSYCHO_ICLR_A_SLOT0 0x1400UL
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#define PSYCHO_ICLR_SCSI 0x1800UL
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#define psycho_iclr_offset(ino) \
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((ino & 0x20) ? (PSYCHO_ICLR_SCSI + (((ino) & 0x1f) << 3)) : \
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(PSYCHO_ICLR_A_SLOT0 + (((ino) & 0x1f)<<3)))
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static unsigned int psycho_irq_build(struct device_node *dp,
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unsigned int ino,
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void *_data)
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{
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unsigned long controller_regs = (unsigned long) _data;
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unsigned long imap, iclr;
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unsigned long imap_off, iclr_off;
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int inofixup = 0;
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ino &= 0x3f;
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if (ino < PSYCHO_ONBOARD_IRQ_BASE) {
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/* PCI slot */
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imap_off = psycho_pcislot_imap_offset(ino);
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} else {
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/* Onboard device */
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imap_off = psycho_onboard_imap_offset(ino);
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}
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/* Now build the IRQ bucket. */
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imap = controller_regs + imap_off;
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iclr_off = psycho_iclr_offset(ino);
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iclr = controller_regs + iclr_off;
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if ((ino & 0x20) == 0)
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inofixup = ino & 0x03;
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return build_irq(inofixup, iclr, imap);
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}
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static void __init psycho_irq_trans_init(struct device_node *dp)
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{
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const struct linux_prom64_registers *regs;
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dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
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dp->irq_trans->irq_build = psycho_irq_build;
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regs = of_get_property(dp, "reg", NULL);
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dp->irq_trans->data = (void *) regs[2].phys_addr;
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}
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#define sabre_read(__reg) \
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({ u64 __ret; \
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__asm__ __volatile__("ldxa [%1] %2, %0" \
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: "=r" (__ret) \
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: "r" (__reg), "i" (ASI_PHYS_BYPASS_EC_E) \
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: "memory"); \
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__ret; \
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})
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struct sabre_irq_data {
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unsigned long controller_regs;
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unsigned int pci_first_busno;
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};
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#define SABRE_CONFIGSPACE 0x001000000UL
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#define SABRE_WRSYNC 0x1c20UL
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#define SABRE_CONFIG_BASE(CONFIG_SPACE) \
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(CONFIG_SPACE | (1UL << 24))
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#define SABRE_CONFIG_ENCODE(BUS, DEVFN, REG) \
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(((unsigned long)(BUS) << 16) | \
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((unsigned long)(DEVFN) << 8) | \
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((unsigned long)(REG)))
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/* When a device lives behind a bridge deeper in the PCI bus topology
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* than APB, a special sequence must run to make sure all pending DMA
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* transfers at the time of IRQ delivery are visible in the coherency
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* domain by the cpu. This sequence is to perform a read on the far
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* side of the non-APB bridge, then perform a read of Sabre's DMA
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* write-sync register.
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*/
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static void sabre_wsync_handler(unsigned int ino, void *_arg1, void *_arg2)
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{
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unsigned int phys_hi = (unsigned int) (unsigned long) _arg1;
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struct sabre_irq_data *irq_data = _arg2;
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unsigned long controller_regs = irq_data->controller_regs;
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unsigned long sync_reg = controller_regs + SABRE_WRSYNC;
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unsigned long config_space = controller_regs + SABRE_CONFIGSPACE;
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unsigned int bus, devfn;
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u16 _unused;
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config_space = SABRE_CONFIG_BASE(config_space);
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bus = (phys_hi >> 16) & 0xff;
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devfn = (phys_hi >> 8) & 0xff;
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config_space |= SABRE_CONFIG_ENCODE(bus, devfn, 0x00);
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__asm__ __volatile__("membar #Sync\n\t"
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"lduha [%1] %2, %0\n\t"
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"membar #Sync"
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: "=r" (_unused)
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: "r" ((u16 *) config_space),
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"i" (ASI_PHYS_BYPASS_EC_E_L)
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: "memory");
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sabre_read(sync_reg);
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}
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#define SABRE_IMAP_A_SLOT0 0x0c00UL
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#define SABRE_IMAP_B_SLOT0 0x0c20UL
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#define SABRE_ICLR_A_SLOT0 0x1400UL
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#define SABRE_ICLR_B_SLOT0 0x1480UL
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#define SABRE_ICLR_SCSI 0x1800UL
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#define SABRE_ICLR_ETH 0x1808UL
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#define SABRE_ICLR_BPP 0x1810UL
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#define SABRE_ICLR_AU_REC 0x1818UL
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#define SABRE_ICLR_AU_PLAY 0x1820UL
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#define SABRE_ICLR_PFAIL 0x1828UL
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#define SABRE_ICLR_KMS 0x1830UL
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#define SABRE_ICLR_FLPY 0x1838UL
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#define SABRE_ICLR_SHW 0x1840UL
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#define SABRE_ICLR_KBD 0x1848UL
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#define SABRE_ICLR_MS 0x1850UL
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#define SABRE_ICLR_SER 0x1858UL
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#define SABRE_ICLR_UE 0x1870UL
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#define SABRE_ICLR_CE 0x1878UL
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#define SABRE_ICLR_PCIERR 0x1880UL
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static unsigned long sabre_pcislot_imap_offset(unsigned long ino)
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{
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unsigned int bus = (ino & 0x10) >> 4;
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unsigned int slot = (ino & 0x0c) >> 2;
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if (bus == 0)
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return SABRE_IMAP_A_SLOT0 + (slot * 8);
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else
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return SABRE_IMAP_B_SLOT0 + (slot * 8);
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}
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#define SABRE_OBIO_IMAP_BASE 0x1000UL
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#define SABRE_ONBOARD_IRQ_BASE 0x20
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#define sabre_onboard_imap_offset(__ino) \
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(SABRE_OBIO_IMAP_BASE + (((__ino) & 0x1f) << 3))
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#define sabre_iclr_offset(ino) \
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((ino & 0x20) ? (SABRE_ICLR_SCSI + (((ino) & 0x1f) << 3)) : \
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(SABRE_ICLR_A_SLOT0 + (((ino) & 0x1f)<<3)))
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static int sabre_device_needs_wsync(struct device_node *dp)
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{
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struct device_node *parent = dp->parent;
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const char *parent_model, *parent_compat;
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/* This traversal up towards the root is meant to
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* handle two cases:
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*
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* 1) non-PCI bus sitting under PCI, such as 'ebus'
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* 2) the PCI controller interrupts themselves, which
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* will use the sabre_irq_build but do not need
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* the DMA synchronization handling
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*/
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while (parent) {
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if (!strcmp(parent->type, "pci"))
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break;
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parent = parent->parent;
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}
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if (!parent)
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return 0;
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parent_model = of_get_property(parent,
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"model", NULL);
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if (parent_model &&
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(!strcmp(parent_model, "SUNW,sabre") ||
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!strcmp(parent_model, "SUNW,simba")))
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return 0;
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parent_compat = of_get_property(parent,
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"compatible", NULL);
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if (parent_compat &&
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(!strcmp(parent_compat, "pci108e,a000") ||
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!strcmp(parent_compat, "pci108e,a001")))
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return 0;
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return 1;
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}
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static unsigned int sabre_irq_build(struct device_node *dp,
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unsigned int ino,
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void *_data)
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{
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struct sabre_irq_data *irq_data = _data;
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unsigned long controller_regs = irq_data->controller_regs;
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const struct linux_prom_pci_registers *regs;
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unsigned long imap, iclr;
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unsigned long imap_off, iclr_off;
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int inofixup = 0;
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int irq;
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ino &= 0x3f;
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if (ino < SABRE_ONBOARD_IRQ_BASE) {
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/* PCI slot */
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imap_off = sabre_pcislot_imap_offset(ino);
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} else {
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/* onboard device */
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imap_off = sabre_onboard_imap_offset(ino);
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}
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/* Now build the IRQ bucket. */
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imap = controller_regs + imap_off;
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iclr_off = sabre_iclr_offset(ino);
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iclr = controller_regs + iclr_off;
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if ((ino & 0x20) == 0)
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inofixup = ino & 0x03;
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irq = build_irq(inofixup, iclr, imap);
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/* If the parent device is a PCI<->PCI bridge other than
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* APB, we have to install a pre-handler to ensure that
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* all pending DMA is drained before the interrupt handler
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* is run.
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*/
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regs = of_get_property(dp, "reg", NULL);
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if (regs && sabre_device_needs_wsync(dp)) {
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irq_install_pre_handler(irq,
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sabre_wsync_handler,
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(void *) (long) regs->phys_hi,
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(void *) irq_data);
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}
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return irq;
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}
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static void __init sabre_irq_trans_init(struct device_node *dp)
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{
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const struct linux_prom64_registers *regs;
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struct sabre_irq_data *irq_data;
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const u32 *busrange;
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dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
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dp->irq_trans->irq_build = sabre_irq_build;
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irq_data = prom_early_alloc(sizeof(struct sabre_irq_data));
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regs = of_get_property(dp, "reg", NULL);
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irq_data->controller_regs = regs[0].phys_addr;
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busrange = of_get_property(dp, "bus-range", NULL);
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irq_data->pci_first_busno = busrange[0];
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dp->irq_trans->data = irq_data;
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}
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/* SCHIZO interrupt mapping support. Unlike Psycho, for this controller the
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* imap/iclr registers are per-PBM.
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*/
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#define SCHIZO_IMAP_BASE 0x1000UL
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#define SCHIZO_ICLR_BASE 0x1400UL
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static unsigned long schizo_imap_offset(unsigned long ino)
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{
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return SCHIZO_IMAP_BASE + (ino * 8UL);
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}
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static unsigned long schizo_iclr_offset(unsigned long ino)
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{
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return SCHIZO_ICLR_BASE + (ino * 8UL);
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}
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static unsigned long schizo_ino_to_iclr(unsigned long pbm_regs,
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unsigned int ino)
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{
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return pbm_regs + schizo_iclr_offset(ino);
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}
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static unsigned long schizo_ino_to_imap(unsigned long pbm_regs,
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unsigned int ino)
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{
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return pbm_regs + schizo_imap_offset(ino);
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}
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#define schizo_read(__reg) \
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({ u64 __ret; \
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__asm__ __volatile__("ldxa [%1] %2, %0" \
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: "=r" (__ret) \
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: "r" (__reg), "i" (ASI_PHYS_BYPASS_EC_E) \
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: "memory"); \
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__ret; \
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})
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#define schizo_write(__reg, __val) \
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__asm__ __volatile__("stxa %0, [%1] %2" \
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: /* no outputs */ \
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: "r" (__val), "r" (__reg), \
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"i" (ASI_PHYS_BYPASS_EC_E) \
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: "memory")
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static void tomatillo_wsync_handler(unsigned int ino, void *_arg1, void *_arg2)
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{
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unsigned long sync_reg = (unsigned long) _arg2;
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u64 mask = 1UL << (ino & IMAP_INO);
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u64 val;
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int limit;
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schizo_write(sync_reg, mask);
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limit = 100000;
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val = 0;
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while (--limit) {
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val = schizo_read(sync_reg);
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if (!(val & mask))
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break;
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}
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if (limit <= 0) {
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printk("tomatillo_wsync_handler: DMA won't sync [%llx:%llx]\n",
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val, mask);
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}
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if (_arg1) {
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static unsigned char cacheline[64]
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__attribute__ ((aligned (64)));
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__asm__ __volatile__("rd %%fprs, %0\n\t"
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"or %0, %4, %1\n\t"
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"wr %1, 0x0, %%fprs\n\t"
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"stda %%f0, [%5] %6\n\t"
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"wr %0, 0x0, %%fprs\n\t"
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"membar #Sync"
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: "=&r" (mask), "=&r" (val)
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: "0" (mask), "1" (val),
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"i" (FPRS_FEF), "r" (&cacheline[0]),
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"i" (ASI_BLK_COMMIT_P));
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}
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}
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struct schizo_irq_data {
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unsigned long pbm_regs;
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unsigned long sync_reg;
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u32 portid;
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int chip_version;
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};
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static unsigned int schizo_irq_build(struct device_node *dp,
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unsigned int ino,
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void *_data)
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{
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struct schizo_irq_data *irq_data = _data;
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unsigned long pbm_regs = irq_data->pbm_regs;
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unsigned long imap, iclr;
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int ign_fixup;
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int irq;
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int is_tomatillo;
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ino &= 0x3f;
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/* Now build the IRQ bucket. */
|
|
imap = schizo_ino_to_imap(pbm_regs, ino);
|
|
iclr = schizo_ino_to_iclr(pbm_regs, ino);
|
|
|
|
/* On Schizo, no inofixup occurs. This is because each
|
|
* INO has it's own IMAP register. On Psycho and Sabre
|
|
* there is only one IMAP register for each PCI slot even
|
|
* though four different INOs can be generated by each
|
|
* PCI slot.
|
|
*
|
|
* But, for JBUS variants (essentially, Tomatillo), we have
|
|
* to fixup the lowest bit of the interrupt group number.
|
|
*/
|
|
ign_fixup = 0;
|
|
|
|
is_tomatillo = (irq_data->sync_reg != 0UL);
|
|
|
|
if (is_tomatillo) {
|
|
if (irq_data->portid & 1)
|
|
ign_fixup = (1 << 6);
|
|
}
|
|
|
|
irq = build_irq(ign_fixup, iclr, imap);
|
|
|
|
if (is_tomatillo) {
|
|
irq_install_pre_handler(irq,
|
|
tomatillo_wsync_handler,
|
|
((irq_data->chip_version <= 4) ?
|
|
(void *) 1 : (void *) 0),
|
|
(void *) irq_data->sync_reg);
|
|
}
|
|
|
|
return irq;
|
|
}
|
|
|
|
static void __init __schizo_irq_trans_init(struct device_node *dp,
|
|
int is_tomatillo)
|
|
{
|
|
const struct linux_prom64_registers *regs;
|
|
struct schizo_irq_data *irq_data;
|
|
|
|
dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
|
|
dp->irq_trans->irq_build = schizo_irq_build;
|
|
|
|
irq_data = prom_early_alloc(sizeof(struct schizo_irq_data));
|
|
|
|
regs = of_get_property(dp, "reg", NULL);
|
|
dp->irq_trans->data = irq_data;
|
|
|
|
irq_data->pbm_regs = regs[0].phys_addr;
|
|
if (is_tomatillo)
|
|
irq_data->sync_reg = regs[3].phys_addr + 0x1a18UL;
|
|
else
|
|
irq_data->sync_reg = 0UL;
|
|
irq_data->portid = of_getintprop_default(dp, "portid", 0);
|
|
irq_data->chip_version = of_getintprop_default(dp, "version#", 0);
|
|
}
|
|
|
|
static void __init schizo_irq_trans_init(struct device_node *dp)
|
|
{
|
|
__schizo_irq_trans_init(dp, 0);
|
|
}
|
|
|
|
static void __init tomatillo_irq_trans_init(struct device_node *dp)
|
|
{
|
|
__schizo_irq_trans_init(dp, 1);
|
|
}
|
|
|
|
static unsigned int pci_sun4v_irq_build(struct device_node *dp,
|
|
unsigned int devino,
|
|
void *_data)
|
|
{
|
|
u32 devhandle = (u32) (unsigned long) _data;
|
|
|
|
return sun4v_build_irq(devhandle, devino);
|
|
}
|
|
|
|
static void __init pci_sun4v_irq_trans_init(struct device_node *dp)
|
|
{
|
|
const struct linux_prom64_registers *regs;
|
|
|
|
dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
|
|
dp->irq_trans->irq_build = pci_sun4v_irq_build;
|
|
|
|
regs = of_get_property(dp, "reg", NULL);
|
|
dp->irq_trans->data = (void *) (unsigned long)
|
|
((regs->phys_addr >> 32UL) & 0x0fffffff);
|
|
}
|
|
|
|
struct fire_irq_data {
|
|
unsigned long pbm_regs;
|
|
u32 portid;
|
|
};
|
|
|
|
#define FIRE_IMAP_BASE 0x001000
|
|
#define FIRE_ICLR_BASE 0x001400
|
|
|
|
static unsigned long fire_imap_offset(unsigned long ino)
|
|
{
|
|
return FIRE_IMAP_BASE + (ino * 8UL);
|
|
}
|
|
|
|
static unsigned long fire_iclr_offset(unsigned long ino)
|
|
{
|
|
return FIRE_ICLR_BASE + (ino * 8UL);
|
|
}
|
|
|
|
static unsigned long fire_ino_to_iclr(unsigned long pbm_regs,
|
|
unsigned int ino)
|
|
{
|
|
return pbm_regs + fire_iclr_offset(ino);
|
|
}
|
|
|
|
static unsigned long fire_ino_to_imap(unsigned long pbm_regs,
|
|
unsigned int ino)
|
|
{
|
|
return pbm_regs + fire_imap_offset(ino);
|
|
}
|
|
|
|
static unsigned int fire_irq_build(struct device_node *dp,
|
|
unsigned int ino,
|
|
void *_data)
|
|
{
|
|
struct fire_irq_data *irq_data = _data;
|
|
unsigned long pbm_regs = irq_data->pbm_regs;
|
|
unsigned long imap, iclr;
|
|
unsigned long int_ctrlr;
|
|
|
|
ino &= 0x3f;
|
|
|
|
/* Now build the IRQ bucket. */
|
|
imap = fire_ino_to_imap(pbm_regs, ino);
|
|
iclr = fire_ino_to_iclr(pbm_regs, ino);
|
|
|
|
/* Set the interrupt controller number. */
|
|
int_ctrlr = 1 << 6;
|
|
upa_writeq(int_ctrlr, imap);
|
|
|
|
/* The interrupt map registers do not have an INO field
|
|
* like other chips do. They return zero in the INO
|
|
* field, and the interrupt controller number is controlled
|
|
* in bits 6 to 9. So in order for build_irq() to get
|
|
* the INO right we pass it in as part of the fixup
|
|
* which will get added to the map register zero value
|
|
* read by build_irq().
|
|
*/
|
|
ino |= (irq_data->portid << 6);
|
|
ino -= int_ctrlr;
|
|
return build_irq(ino, iclr, imap);
|
|
}
|
|
|
|
static void __init fire_irq_trans_init(struct device_node *dp)
|
|
{
|
|
const struct linux_prom64_registers *regs;
|
|
struct fire_irq_data *irq_data;
|
|
|
|
dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
|
|
dp->irq_trans->irq_build = fire_irq_build;
|
|
|
|
irq_data = prom_early_alloc(sizeof(struct fire_irq_data));
|
|
|
|
regs = of_get_property(dp, "reg", NULL);
|
|
dp->irq_trans->data = irq_data;
|
|
|
|
irq_data->pbm_regs = regs[0].phys_addr;
|
|
irq_data->portid = of_getintprop_default(dp, "portid", 0);
|
|
}
|
|
#endif /* CONFIG_PCI */
|
|
|
|
#ifdef CONFIG_SBUS
|
|
/* INO number to IMAP register offset for SYSIO external IRQ's.
|
|
* This should conform to both Sunfire/Wildfire server and Fusion
|
|
* desktop designs.
|
|
*/
|
|
#define SYSIO_IMAP_SLOT0 0x2c00UL
|
|
#define SYSIO_IMAP_SLOT1 0x2c08UL
|
|
#define SYSIO_IMAP_SLOT2 0x2c10UL
|
|
#define SYSIO_IMAP_SLOT3 0x2c18UL
|
|
#define SYSIO_IMAP_SCSI 0x3000UL
|
|
#define SYSIO_IMAP_ETH 0x3008UL
|
|
#define SYSIO_IMAP_BPP 0x3010UL
|
|
#define SYSIO_IMAP_AUDIO 0x3018UL
|
|
#define SYSIO_IMAP_PFAIL 0x3020UL
|
|
#define SYSIO_IMAP_KMS 0x3028UL
|
|
#define SYSIO_IMAP_FLPY 0x3030UL
|
|
#define SYSIO_IMAP_SHW 0x3038UL
|
|
#define SYSIO_IMAP_KBD 0x3040UL
|
|
#define SYSIO_IMAP_MS 0x3048UL
|
|
#define SYSIO_IMAP_SER 0x3050UL
|
|
#define SYSIO_IMAP_TIM0 0x3060UL
|
|
#define SYSIO_IMAP_TIM1 0x3068UL
|
|
#define SYSIO_IMAP_UE 0x3070UL
|
|
#define SYSIO_IMAP_CE 0x3078UL
|
|
#define SYSIO_IMAP_SBERR 0x3080UL
|
|
#define SYSIO_IMAP_PMGMT 0x3088UL
|
|
#define SYSIO_IMAP_GFX 0x3090UL
|
|
#define SYSIO_IMAP_EUPA 0x3098UL
|
|
|
|
#define bogon ((unsigned long) -1)
|
|
static unsigned long sysio_irq_offsets[] = {
|
|
/* SBUS Slot 0 --> 3, level 1 --> 7 */
|
|
SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0,
|
|
SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0,
|
|
SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1,
|
|
SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1,
|
|
SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2,
|
|
SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2,
|
|
SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3,
|
|
SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3,
|
|
|
|
/* Onboard devices (not relevant/used on SunFire). */
|
|
SYSIO_IMAP_SCSI,
|
|
SYSIO_IMAP_ETH,
|
|
SYSIO_IMAP_BPP,
|
|
bogon,
|
|
SYSIO_IMAP_AUDIO,
|
|
SYSIO_IMAP_PFAIL,
|
|
bogon,
|
|
bogon,
|
|
SYSIO_IMAP_KMS,
|
|
SYSIO_IMAP_FLPY,
|
|
SYSIO_IMAP_SHW,
|
|
SYSIO_IMAP_KBD,
|
|
SYSIO_IMAP_MS,
|
|
SYSIO_IMAP_SER,
|
|
bogon,
|
|
bogon,
|
|
SYSIO_IMAP_TIM0,
|
|
SYSIO_IMAP_TIM1,
|
|
bogon,
|
|
bogon,
|
|
SYSIO_IMAP_UE,
|
|
SYSIO_IMAP_CE,
|
|
SYSIO_IMAP_SBERR,
|
|
SYSIO_IMAP_PMGMT,
|
|
SYSIO_IMAP_GFX,
|
|
SYSIO_IMAP_EUPA,
|
|
};
|
|
|
|
#undef bogon
|
|
|
|
#define NUM_SYSIO_OFFSETS ARRAY_SIZE(sysio_irq_offsets)
|
|
|
|
/* Convert Interrupt Mapping register pointer to associated
|
|
* Interrupt Clear register pointer, SYSIO specific version.
|
|
*/
|
|
#define SYSIO_ICLR_UNUSED0 0x3400UL
|
|
#define SYSIO_ICLR_SLOT0 0x3408UL
|
|
#define SYSIO_ICLR_SLOT1 0x3448UL
|
|
#define SYSIO_ICLR_SLOT2 0x3488UL
|
|
#define SYSIO_ICLR_SLOT3 0x34c8UL
|
|
static unsigned long sysio_imap_to_iclr(unsigned long imap)
|
|
{
|
|
unsigned long diff = SYSIO_ICLR_UNUSED0 - SYSIO_IMAP_SLOT0;
|
|
return imap + diff;
|
|
}
|
|
|
|
static unsigned int sbus_of_build_irq(struct device_node *dp,
|
|
unsigned int ino,
|
|
void *_data)
|
|
{
|
|
unsigned long reg_base = (unsigned long) _data;
|
|
const struct linux_prom_registers *regs;
|
|
unsigned long imap, iclr;
|
|
int sbus_slot = 0;
|
|
int sbus_level = 0;
|
|
|
|
ino &= 0x3f;
|
|
|
|
regs = of_get_property(dp, "reg", NULL);
|
|
if (regs)
|
|
sbus_slot = regs->which_io;
|
|
|
|
if (ino < 0x20)
|
|
ino += (sbus_slot * 8);
|
|
|
|
imap = sysio_irq_offsets[ino];
|
|
if (imap == ((unsigned long)-1)) {
|
|
prom_printf("get_irq_translations: Bad SYSIO INO[%x]\n",
|
|
ino);
|
|
prom_halt();
|
|
}
|
|
imap += reg_base;
|
|
|
|
/* SYSIO inconsistency. For external SLOTS, we have to select
|
|
* the right ICLR register based upon the lower SBUS irq level
|
|
* bits.
|
|
*/
|
|
if (ino >= 0x20) {
|
|
iclr = sysio_imap_to_iclr(imap);
|
|
} else {
|
|
sbus_level = ino & 0x7;
|
|
|
|
switch(sbus_slot) {
|
|
case 0:
|
|
iclr = reg_base + SYSIO_ICLR_SLOT0;
|
|
break;
|
|
case 1:
|
|
iclr = reg_base + SYSIO_ICLR_SLOT1;
|
|
break;
|
|
case 2:
|
|
iclr = reg_base + SYSIO_ICLR_SLOT2;
|
|
break;
|
|
default:
|
|
case 3:
|
|
iclr = reg_base + SYSIO_ICLR_SLOT3;
|
|
break;
|
|
}
|
|
|
|
iclr += ((unsigned long)sbus_level - 1UL) * 8UL;
|
|
}
|
|
return build_irq(sbus_level, iclr, imap);
|
|
}
|
|
|
|
static void __init sbus_irq_trans_init(struct device_node *dp)
|
|
{
|
|
const struct linux_prom64_registers *regs;
|
|
|
|
dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
|
|
dp->irq_trans->irq_build = sbus_of_build_irq;
|
|
|
|
regs = of_get_property(dp, "reg", NULL);
|
|
dp->irq_trans->data = (void *) (unsigned long) regs->phys_addr;
|
|
}
|
|
#endif /* CONFIG_SBUS */
|
|
|
|
|
|
static unsigned int central_build_irq(struct device_node *dp,
|
|
unsigned int ino,
|
|
void *_data)
|
|
{
|
|
struct device_node *central_dp = _data;
|
|
struct platform_device *central_op = of_find_device_by_node(central_dp);
|
|
struct resource *res;
|
|
unsigned long imap, iclr;
|
|
u32 tmp;
|
|
|
|
if (!strcmp(dp->name, "eeprom")) {
|
|
res = ¢ral_op->resource[5];
|
|
} else if (!strcmp(dp->name, "zs")) {
|
|
res = ¢ral_op->resource[4];
|
|
} else if (!strcmp(dp->name, "clock-board")) {
|
|
res = ¢ral_op->resource[3];
|
|
} else {
|
|
return ino;
|
|
}
|
|
|
|
imap = res->start + 0x00UL;
|
|
iclr = res->start + 0x10UL;
|
|
|
|
/* Set the INO state to idle, and disable. */
|
|
upa_writel(0, iclr);
|
|
upa_readl(iclr);
|
|
|
|
tmp = upa_readl(imap);
|
|
tmp &= ~0x80000000;
|
|
upa_writel(tmp, imap);
|
|
|
|
return build_irq(0, iclr, imap);
|
|
}
|
|
|
|
static void __init central_irq_trans_init(struct device_node *dp)
|
|
{
|
|
dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
|
|
dp->irq_trans->irq_build = central_build_irq;
|
|
|
|
dp->irq_trans->data = dp;
|
|
}
|
|
|
|
struct irq_trans {
|
|
const char *name;
|
|
void (*init)(struct device_node *);
|
|
};
|
|
|
|
#ifdef CONFIG_PCI
|
|
static struct irq_trans __initdata pci_irq_trans_table[] = {
|
|
{ "SUNW,sabre", sabre_irq_trans_init },
|
|
{ "pci108e,a000", sabre_irq_trans_init },
|
|
{ "pci108e,a001", sabre_irq_trans_init },
|
|
{ "SUNW,psycho", psycho_irq_trans_init },
|
|
{ "pci108e,8000", psycho_irq_trans_init },
|
|
{ "SUNW,schizo", schizo_irq_trans_init },
|
|
{ "pci108e,8001", schizo_irq_trans_init },
|
|
{ "SUNW,schizo+", schizo_irq_trans_init },
|
|
{ "pci108e,8002", schizo_irq_trans_init },
|
|
{ "SUNW,tomatillo", tomatillo_irq_trans_init },
|
|
{ "pci108e,a801", tomatillo_irq_trans_init },
|
|
{ "SUNW,sun4v-pci", pci_sun4v_irq_trans_init },
|
|
{ "pciex108e,80f0", fire_irq_trans_init },
|
|
};
|
|
#endif
|
|
|
|
static unsigned int sun4v_vdev_irq_build(struct device_node *dp,
|
|
unsigned int devino,
|
|
void *_data)
|
|
{
|
|
u32 devhandle = (u32) (unsigned long) _data;
|
|
|
|
return sun4v_build_irq(devhandle, devino);
|
|
}
|
|
|
|
static void __init sun4v_vdev_irq_trans_init(struct device_node *dp)
|
|
{
|
|
const struct linux_prom64_registers *regs;
|
|
|
|
dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
|
|
dp->irq_trans->irq_build = sun4v_vdev_irq_build;
|
|
|
|
regs = of_get_property(dp, "reg", NULL);
|
|
dp->irq_trans->data = (void *) (unsigned long)
|
|
((regs->phys_addr >> 32UL) & 0x0fffffff);
|
|
}
|
|
|
|
void __init irq_trans_init(struct device_node *dp)
|
|
{
|
|
#ifdef CONFIG_PCI
|
|
const char *model;
|
|
int i;
|
|
#endif
|
|
|
|
#ifdef CONFIG_PCI
|
|
model = of_get_property(dp, "model", NULL);
|
|
if (!model)
|
|
model = of_get_property(dp, "compatible", NULL);
|
|
if (model) {
|
|
for (i = 0; i < ARRAY_SIZE(pci_irq_trans_table); i++) {
|
|
struct irq_trans *t = &pci_irq_trans_table[i];
|
|
|
|
if (!strcmp(model, t->name)) {
|
|
t->init(dp);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
#ifdef CONFIG_SBUS
|
|
if (!strcmp(dp->name, "sbus") ||
|
|
!strcmp(dp->name, "sbi")) {
|
|
sbus_irq_trans_init(dp);
|
|
return;
|
|
}
|
|
#endif
|
|
if (!strcmp(dp->name, "fhc") &&
|
|
!strcmp(dp->parent->name, "central")) {
|
|
central_irq_trans_init(dp);
|
|
return;
|
|
}
|
|
if (!strcmp(dp->name, "virtual-devices") ||
|
|
!strcmp(dp->name, "niu")) {
|
|
sun4v_vdev_irq_trans_init(dp);
|
|
return;
|
|
}
|
|
}
|