forked from Minki/linux
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>
180 lines
4.3 KiB
C
180 lines
4.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __NV04_DISPLAY_H__
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#define __NV04_DISPLAY_H__
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#include <subdev/bios.h>
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#include <subdev/bios/pll.h>
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#include "nouveau_display.h"
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enum nv04_fp_display_regs {
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FP_DISPLAY_END,
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FP_TOTAL,
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FP_CRTC,
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FP_SYNC_START,
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FP_SYNC_END,
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FP_VALID_START,
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FP_VALID_END
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};
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struct nv04_crtc_reg {
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unsigned char MiscOutReg;
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uint8_t CRTC[0xa0];
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uint8_t CR58[0x10];
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uint8_t Sequencer[5];
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uint8_t Graphics[9];
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uint8_t Attribute[21];
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unsigned char DAC[768];
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/* PCRTC regs */
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uint32_t fb_start;
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uint32_t crtc_cfg;
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uint32_t cursor_cfg;
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uint32_t gpio_ext;
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uint32_t crtc_830;
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uint32_t crtc_834;
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uint32_t crtc_850;
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uint32_t crtc_eng_ctrl;
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/* PRAMDAC regs */
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uint32_t nv10_cursync;
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struct nvkm_pll_vals pllvals;
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uint32_t ramdac_gen_ctrl;
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uint32_t ramdac_630;
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uint32_t ramdac_634;
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uint32_t tv_setup;
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uint32_t tv_vtotal;
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uint32_t tv_vskew;
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uint32_t tv_vsync_delay;
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uint32_t tv_htotal;
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uint32_t tv_hskew;
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uint32_t tv_hsync_delay;
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uint32_t tv_hsync_delay2;
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uint32_t fp_horiz_regs[7];
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uint32_t fp_vert_regs[7];
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uint32_t dither;
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uint32_t fp_control;
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uint32_t dither_regs[6];
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uint32_t fp_debug_0;
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uint32_t fp_debug_1;
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uint32_t fp_debug_2;
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uint32_t fp_margin_color;
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uint32_t ramdac_8c0;
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uint32_t ramdac_a20;
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uint32_t ramdac_a24;
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uint32_t ramdac_a34;
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uint32_t ctv_regs[38];
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};
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struct nv04_output_reg {
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uint32_t output;
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int head;
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};
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struct nv04_mode_state {
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struct nv04_crtc_reg crtc_reg[2];
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uint32_t pllsel;
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uint32_t sel_clk;
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};
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struct nv04_display {
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struct nv04_mode_state mode_reg;
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struct nv04_mode_state saved_reg;
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uint32_t saved_vga_font[4][16384];
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uint32_t dac_users[4];
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struct nouveau_bo *image[2];
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};
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static inline struct nv04_display *
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nv04_display(struct drm_device *dev)
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{
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return nouveau_display(dev)->priv;
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}
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/* nv04_display.c */
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int nv04_display_create(struct drm_device *);
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void nv04_display_destroy(struct drm_device *);
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int nv04_display_init(struct drm_device *);
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void nv04_display_fini(struct drm_device *);
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/* nv04_crtc.c */
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int nv04_crtc_create(struct drm_device *, int index);
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/* nv04_dac.c */
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int nv04_dac_create(struct drm_connector *, struct dcb_output *);
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uint32_t nv17_dac_sample_load(struct drm_encoder *encoder);
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int nv04_dac_output_offset(struct drm_encoder *encoder);
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void nv04_dac_update_dacclk(struct drm_encoder *encoder, bool enable);
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bool nv04_dac_in_use(struct drm_encoder *encoder);
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/* nv04_dfp.c */
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int nv04_dfp_create(struct drm_connector *, struct dcb_output *);
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int nv04_dfp_get_bound_head(struct drm_device *dev, struct dcb_output *dcbent);
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void nv04_dfp_bind_head(struct drm_device *dev, struct dcb_output *dcbent,
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int head, bool dl);
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void nv04_dfp_disable(struct drm_device *dev, int head);
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void nv04_dfp_update_fp_control(struct drm_encoder *encoder, int mode);
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/* nv04_tv.c */
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int nv04_tv_identify(struct drm_device *dev, int i2c_index);
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int nv04_tv_create(struct drm_connector *, struct dcb_output *);
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/* nv17_tv.c */
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int nv17_tv_create(struct drm_connector *, struct dcb_output *);
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/* overlay.c */
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void nouveau_overlay_init(struct drm_device *dev);
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static inline bool
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nv_two_heads(struct drm_device *dev)
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{
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struct nouveau_drm *drm = nouveau_drm(dev);
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const int impl = dev->pdev->device & 0x0ff0;
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if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_CELSIUS && impl != 0x0100 &&
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impl != 0x0150 && impl != 0x01a0 && impl != 0x0200)
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return true;
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return false;
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}
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static inline bool
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nv_gf4_disp_arch(struct drm_device *dev)
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{
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return nv_two_heads(dev) && (dev->pdev->device & 0x0ff0) != 0x0110;
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}
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static inline bool
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nv_two_reg_pll(struct drm_device *dev)
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{
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struct nouveau_drm *drm = nouveau_drm(dev);
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const int impl = dev->pdev->device & 0x0ff0;
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if (impl == 0x0310 || impl == 0x0340 || drm->client.device.info.family >= NV_DEVICE_INFO_V0_CURIE)
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return true;
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return false;
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}
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static inline bool
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nv_match_device(struct drm_device *dev, unsigned device,
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unsigned sub_vendor, unsigned sub_device)
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{
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return dev->pdev->device == device &&
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dev->pdev->subsystem_vendor == sub_vendor &&
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dev->pdev->subsystem_device == sub_device;
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}
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#include <subdev/bios.h>
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#include <subdev/bios/init.h>
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static inline void
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nouveau_bios_run_init_table(struct drm_device *dev, u16 table,
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struct dcb_output *outp, int crtc)
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{
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nvbios_init(&nvxx_bios(&nouveau_drm(dev)->client.device)->subdev, table,
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init.outp = outp;
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init.head = crtc;
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);
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}
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#endif
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