License cleanup: add SPDX GPL-2.0 license identifier to files with no license
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>
2017-11-01 22:07:57 +08:00
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/* SPDX-License-Identifier: GPL-2.0 */
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2005-04-17 06:20:36 +08:00
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/*
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* ATI Frame Buffer Device Driver Core Definitions
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*/
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#include <linux/spinlock.h>
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#include <linux/wait.h>
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/*
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* Elements of the hardware specific atyfb_par structure
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*/
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struct crtc {
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u32 vxres;
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u32 vyres;
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u32 xoffset;
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u32 yoffset;
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u32 bpp;
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u32 h_tot_disp;
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u32 h_sync_strt_wid;
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u32 v_tot_disp;
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u32 v_sync_strt_wid;
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u32 vline_crnt_vline;
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u32 off_pitch;
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u32 gen_cntl;
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u32 dp_pix_width; /* acceleration */
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u32 dp_chain_mask; /* acceleration */
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#ifdef CONFIG_FB_ATY_GENERIC_LCD
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u32 horz_stretching;
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u32 vert_stretching;
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u32 ext_vert_stretch;
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u32 shadow_h_tot_disp;
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u32 shadow_h_sync_strt_wid;
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u32 shadow_v_tot_disp;
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u32 shadow_v_sync_strt_wid;
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u32 lcd_gen_cntl;
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u32 lcd_config_panel;
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u32 lcd_index;
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#endif
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};
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struct aty_interrupt {
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wait_queue_head_t wait;
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unsigned int count;
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int pan_display;
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};
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struct pll_info {
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int pll_max;
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int pll_min;
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int sclk, mclk, mclk_pm, xclk;
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int ref_div;
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int ref_clk;
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2006-01-10 12:53:27 +08:00
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int ecp_max;
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2005-04-17 06:20:36 +08:00
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};
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typedef struct {
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u16 unknown1;
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u16 PCLK_min_freq;
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u16 PCLK_max_freq;
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u16 unknown2;
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u16 ref_freq;
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u16 ref_divider;
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u16 unknown3;
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u16 MCLK_pwd;
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u16 MCLK_max_freq;
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u16 XCLK_max_freq;
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u16 SCLK_freq;
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} __attribute__ ((packed)) PLL_BLOCK_MACH64;
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struct pll_514 {
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u8 m;
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u8 n;
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};
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struct pll_18818 {
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u32 program_bits;
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u32 locationAddr;
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u32 period_in_ps;
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u32 post_divider;
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};
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struct pll_ct {
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u8 pll_ref_div;
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u8 pll_gen_cntl;
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u8 mclk_fb_div;
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u8 mclk_fb_mult; /* 2 ro 4 */
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u8 sclk_fb_div;
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u8 pll_vclk_cntl;
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u8 vclk_post_div;
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u8 vclk_fb_div;
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u8 pll_ext_cntl;
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u8 ext_vpll_cntl;
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u8 spll_cntl2;
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u32 dsp_config; /* Mach64 GTB DSP */
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u32 dsp_on_off; /* Mach64 GTB DSP */
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u32 dsp_loop_latency;
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u32 fifo_size;
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u32 xclkpagefaultdelay;
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u32 xclkmaxrasdelay;
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u8 xclk_ref_div;
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u8 xclk_post_div;
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u8 mclk_post_div_real;
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u8 xclk_post_div_real;
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u8 vclk_post_div_real;
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u8 features;
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#ifdef CONFIG_FB_ATY_GENERIC_LCD
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u32 xres; /* use for LCD stretching/scaling */
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#endif
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};
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/*
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for pll_ct.features
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*/
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#define DONT_USE_SPLL 0x1
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#define DONT_USE_XDLL 0x2
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#define USE_CPUCLK 0x4
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#define POWERDOWN_PLL 0x8
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union aty_pll {
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struct pll_ct ct;
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struct pll_514 ibm514;
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struct pll_18818 ics2595;
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};
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/*
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* The hardware parameters for each card
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*/
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struct atyfb_par {
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2007-10-16 16:29:03 +08:00
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u32 pseudo_palette[16];
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2005-04-17 06:20:36 +08:00
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struct { u8 red, green, blue; } palette[256];
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const struct aty_dac_ops *dac_ops;
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const struct aty_pll_ops *pll_ops;
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void __iomem *ati_regbase;
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unsigned long clk_wr_offset; /* meaning overloaded, clock id by CT */
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struct crtc crtc;
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union aty_pll pll;
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struct pll_info pll_limits;
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u32 features;
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u32 ref_clk_per;
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u32 pll_per;
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u32 mclk_per;
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u32 xclk_per;
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u8 bus_type;
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u8 ram_type;
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u8 mem_refresh_rate;
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u16 pci_id;
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u32 accel_flags;
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int blitter_may_be_busy;
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2018-10-08 18:57:35 +08:00
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unsigned fifo_space;
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2005-04-17 06:20:36 +08:00
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int asleep;
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int lock_blank;
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unsigned long res_start;
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unsigned long res_size;
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2006-06-25 20:47:08 +08:00
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struct pci_dev *pdev;
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2005-04-17 06:20:36 +08:00
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#ifdef __sparc__
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struct pci_mmap_map *mmap_map;
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u8 mmaped;
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#endif
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int open;
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#ifdef CONFIG_FB_ATY_GENERIC_LCD
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unsigned long bios_base_phys;
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unsigned long bios_base;
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unsigned long lcd_table;
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u16 lcd_width;
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u16 lcd_height;
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u32 lcd_pixclock;
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u16 lcd_refreshrate;
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u16 lcd_htotal;
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u16 lcd_hdisp;
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u16 lcd_hsync_dly;
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u16 lcd_hsync_len;
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u16 lcd_vtotal;
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u16 lcd_vdisp;
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u16 lcd_vsync_len;
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u16 lcd_right_margin;
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u16 lcd_lower_margin;
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u16 lcd_hblank_len;
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u16 lcd_vblank_len;
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#endif
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unsigned long aux_start; /* auxiliary aperture */
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unsigned long aux_size;
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struct aty_interrupt vblank;
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unsigned long irq_flags;
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unsigned int irq;
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spinlock_t int_lock;
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drivers/video/fbdev/atyfb: Use arch_phys_wc_add() and ioremap_wc()
This driver uses strong UC for the MMIO region, and ioremap_wc()
for the framebuffer to whitelist for the WC MTRR that can be
changed to WC. On PAT systems we don't need the MTRR call so
just use arch_phys_wc_add() there, this lets us remove all those
ifdefs. Let's also be consistent and use ioremap_wc() for ATARI
as well.
There are a few motivations for this:
a) Take advantage of PAT when available.
b) Help bury MTRR code away, MTRR is architecture specific and
on x86 it is being replaced by PAT.
c) Help with the goal of eventually using _PAGE_CACHE_UC over
_PAGE_CACHE_UC_MINUS on x86 on ioremap_nocache() (see commit
de33c442e titled "x86 PAT: fix performance drop for glx,
use UC minus for ioremap(), ioremap_nocache() and
pci_mmap_page_range()").
The conversion done is expressed by the following Coccinelle
SmPL patch, it additionally required manual intervention to
address all the ifdeffery and removal of redundant things which
arch_phys_wc_add() already addresses such as verbose message
about when MTRR fails and doing nothing when we didn't get an
MTRR:
@ mtrr_found @
expression index, base, size;
@@
-index = mtrr_add(base, size, MTRR_TYPE_WRCOMB, 1);
+index = arch_phys_wc_add(base, size);
@ mtrr_rm depends on mtrr_found @
expression mtrr_found.index, mtrr_found.base, mtrr_found.size;
@@
-mtrr_del(index, base, size);
+arch_phys_wc_del(index);
@ mtrr_rm_zero_arg depends on mtrr_found @
expression mtrr_found.index;
@@
-mtrr_del(index, 0, 0);
+arch_phys_wc_del(index);
@ mtrr_rm_fb_info depends on mtrr_found @
struct fb_info *info;
expression mtrr_found.index;
@@
-mtrr_del(index, info->fix.smem_start, info->fix.smem_len);
+arch_phys_wc_del(index);
@ ioremap_replace_nocache depends on mtrr_found @
struct fb_info *info;
expression base, size;
@@
-info->screen_base = ioremap_nocache(base, size);
+info->screen_base = ioremap_wc(base, size);
@ ioremap_replace_default depends on mtrr_found @
struct fb_info *info;
expression base, size;
@@
-info->screen_base = ioremap(base, size);
+info->screen_base = ioremap_wc(base, size);
Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Antonino Daplas <adaplas@gmail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Davidlohr Bueso <dbueso@suse.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mathias Krause <minipli@googlemail.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Suresh Siddha <sbsiddha@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Toshi Kani <toshi.kani@hp.com>
Cc: Ville Syrjälä <syrjala@sci.fi>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: arnd@arndb.de
Cc: benh@kernel.crashing.org
Cc: dan.j.williams@intel.com
Cc: geert@linux-m68k.org
Cc: hch@lst.de
Cc: hmh@hmh.eng.br
Cc: linux-fbdev@vger.kernel.org
Cc: linux-mm@kvack.org
Cc: linux-pci@vger.kernel.org
Cc: mpe@ellerman.id.au
Cc: mst@redhat.com
Cc: ralf@linux-mips.org
Cc: ross.zwisler@linux.intel.com
Cc: stefan.bader@canonical.com
Cc: tj@kernel.org
Cc: ville.syrjala@linux.intel.com
Link: http://lkml.kernel.org/r/1436491499-3289-5-git-send-email-mcgrof@do-not-panic.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-07-10 09:24:59 +08:00
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int wc_cookie;
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2006-12-08 18:40:45 +08:00
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u32 mem_cntl;
|
2009-07-01 02:41:40 +08:00
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struct crtc saved_crtc;
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union aty_pll saved_pll;
|
2005-04-17 06:20:36 +08:00
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};
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/*
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* ATI Mach64 features
|
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|
*/
|
|
|
|
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|
|
#define M64_HAS(feature) ((par)->features & (M64F_##feature))
|
|
|
|
|
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|
|
|
#define M64F_RESET_3D 0x00000001
|
|
|
|
|
#define M64F_MAGIC_FIFO 0x00000002
|
|
|
|
|
#define M64F_GTB_DSP 0x00000004
|
|
|
|
|
#define M64F_FIFO_32 0x00000008
|
|
|
|
|
#define M64F_SDRAM_MAGIC_PLL 0x00000010
|
|
|
|
|
#define M64F_MAGIC_POSTDIV 0x00000020
|
|
|
|
|
#define M64F_INTEGRATED 0x00000040
|
|
|
|
|
#define M64F_CT_BUS 0x00000080
|
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|
|
#define M64F_VT_BUS 0x00000100
|
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|
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|
#define M64F_MOBIL_BUS 0x00000200
|
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|
|
#define M64F_GX 0x00000400
|
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#define M64F_CT 0x00000800
|
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|
#define M64F_VT 0x00001000
|
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|
#define M64F_GT 0x00002000
|
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|
|
#define M64F_MAGIC_VRAM_SIZE 0x00004000
|
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|
|
#define M64F_G3_PB_1_1 0x00008000
|
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|
#define M64F_G3_PB_1024x768 0x00010000
|
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|
|
#define M64F_EXTRA_BRIGHT 0x00020000
|
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|
|
|
#define M64F_LT_LCD_REGS 0x00040000
|
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|
|
#define M64F_XL_DLL 0x00080000
|
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|
|
|
#define M64F_MFB_FORCE_4 0x00100000
|
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|
|
#define M64F_HW_TRIPLE 0x00200000
|
2009-07-01 02:41:42 +08:00
|
|
|
#define M64F_XL_MEM 0x00400000
|
2005-04-17 06:20:36 +08:00
|
|
|
/*
|
|
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|
|
* Register access
|
|
|
|
|
*/
|
|
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|
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|
|
static inline u32 aty_ld_le32(int regindex, const struct atyfb_par *par)
|
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|
|
|
{
|
|
|
|
|
/* Hack for bloc 1, should be cleanly optimized by compiler */
|
|
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|
|
if (regindex >= 0x400)
|
|
|
|
|
regindex -= 0x800;
|
|
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|
|
|
|
|
|
|
#ifdef CONFIG_ATARI
|
2006-12-08 18:40:40 +08:00
|
|
|
return in_le32(par->ati_regbase + regindex);
|
2005-04-17 06:20:36 +08:00
|
|
|
#else
|
|
|
|
|
return readl(par->ati_regbase + regindex);
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
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|
|
static inline void aty_st_le32(int regindex, u32 val, const struct atyfb_par *par)
|
|
|
|
|
{
|
|
|
|
|
/* Hack for bloc 1, should be cleanly optimized by compiler */
|
|
|
|
|
if (regindex >= 0x400)
|
|
|
|
|
regindex -= 0x800;
|
|
|
|
|
|
|
|
|
|
#ifdef CONFIG_ATARI
|
2006-12-08 18:40:40 +08:00
|
|
|
out_le32(par->ati_regbase + regindex, val);
|
2005-04-17 06:20:36 +08:00
|
|
|
#else
|
|
|
|
|
writel(val, par->ati_regbase + regindex);
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline void aty_st_le16(int regindex, u16 val,
|
|
|
|
|
const struct atyfb_par *par)
|
|
|
|
|
{
|
|
|
|
|
/* Hack for bloc 1, should be cleanly optimized by compiler */
|
|
|
|
|
if (regindex >= 0x400)
|
|
|
|
|
regindex -= 0x800;
|
|
|
|
|
#ifdef CONFIG_ATARI
|
2006-12-08 18:40:40 +08:00
|
|
|
out_le16(par->ati_regbase + regindex, val);
|
2005-04-17 06:20:36 +08:00
|
|
|
#else
|
|
|
|
|
writel(val, par->ati_regbase + regindex);
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline u8 aty_ld_8(int regindex, const struct atyfb_par *par)
|
|
|
|
|
{
|
|
|
|
|
/* Hack for bloc 1, should be cleanly optimized by compiler */
|
|
|
|
|
if (regindex >= 0x400)
|
|
|
|
|
regindex -= 0x800;
|
|
|
|
|
#ifdef CONFIG_ATARI
|
|
|
|
|
return in_8(par->ati_regbase + regindex);
|
|
|
|
|
#else
|
|
|
|
|
return readb(par->ati_regbase + regindex);
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline void aty_st_8(int regindex, u8 val, const struct atyfb_par *par)
|
|
|
|
|
{
|
|
|
|
|
/* Hack for bloc 1, should be cleanly optimized by compiler */
|
|
|
|
|
if (regindex >= 0x400)
|
|
|
|
|
regindex -= 0x800;
|
|
|
|
|
|
|
|
|
|
#ifdef CONFIG_ATARI
|
|
|
|
|
out_8(par->ati_regbase + regindex, val);
|
|
|
|
|
#else
|
|
|
|
|
writeb(val, par->ati_regbase + regindex);
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
extern void aty_st_lcd(int index, u32 val, const struct atyfb_par *par);
|
|
|
|
|
extern u32 aty_ld_lcd(int index, const struct atyfb_par *par);
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* DAC operations
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
struct aty_dac_ops {
|
|
|
|
|
int (*set_dac) (const struct fb_info * info,
|
|
|
|
|
const union aty_pll * pll, u32 bpp, u32 accel);
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
extern const struct aty_dac_ops aty_dac_ibm514; /* IBM RGB514 */
|
|
|
|
|
extern const struct aty_dac_ops aty_dac_ati68860b; /* ATI 68860-B */
|
|
|
|
|
extern const struct aty_dac_ops aty_dac_att21c498; /* AT&T 21C498 */
|
|
|
|
|
extern const struct aty_dac_ops aty_dac_unsupported; /* unsupported */
|
|
|
|
|
extern const struct aty_dac_ops aty_dac_ct; /* Integrated */
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Clock operations
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
struct aty_pll_ops {
|
|
|
|
|
int (*var_to_pll) (const struct fb_info * info, u32 vclk_per, u32 bpp, union aty_pll * pll);
|
|
|
|
|
u32 (*pll_to_var) (const struct fb_info * info, const union aty_pll * pll);
|
|
|
|
|
void (*set_pll) (const struct fb_info * info, const union aty_pll * pll);
|
|
|
|
|
void (*get_pll) (const struct fb_info *info, union aty_pll * pll);
|
|
|
|
|
int (*init_pll) (const struct fb_info * info, union aty_pll * pll);
|
2006-12-08 18:40:45 +08:00
|
|
|
void (*resume_pll)(const struct fb_info *info, union aty_pll *pll);
|
2005-04-17 06:20:36 +08:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
extern const struct aty_pll_ops aty_pll_ati18818_1; /* ATI 18818 */
|
|
|
|
|
extern const struct aty_pll_ops aty_pll_stg1703; /* STG 1703 */
|
|
|
|
|
extern const struct aty_pll_ops aty_pll_ch8398; /* Chrontel 8398 */
|
|
|
|
|
extern const struct aty_pll_ops aty_pll_att20c408; /* AT&T 20C408 */
|
|
|
|
|
extern const struct aty_pll_ops aty_pll_ibm514; /* IBM RGB514 */
|
|
|
|
|
extern const struct aty_pll_ops aty_pll_unsupported; /* unsupported */
|
|
|
|
|
extern const struct aty_pll_ops aty_pll_ct; /* Integrated */
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
extern void aty_set_pll_ct(const struct fb_info *info, const union aty_pll *pll);
|
|
|
|
|
extern u8 aty_ld_pll_ct(int offset, const struct atyfb_par *par);
|
|
|
|
|
|
mach64: detect the dot clock divider correctly on sparc
On Sun Ultra 5, it happens that the dot clock is not set up properly for
some videomodes. For example, if we set the videomode "r1024x768x60" in
the firmware, Linux would incorrectly set a videomode with refresh rate
180Hz when booting (suprisingly, my LCD monitor can display it, although
display quality is very low).
The reason is this: Older mach64 cards set the divider in the register
VCLK_POST_DIV. The register has four 2-bit fields (the field that is
actually used is specified in the lowest two bits of the register
CLOCK_CNTL). The 2 bits select divider "1, 2, 4, 8". On newer mach64 cards,
there's another bit added - the top four bits of PLL_EXT_CNTL extend the
divider selection, so we have possible dividers "1, 2, 4, 8, 3, 5, 6, 12".
The Linux driver clears the top four bits of PLL_EXT_CNTL and never sets
them, so it can work regardless if the card supports them. However, the
sparc64 firmware may set these extended dividers during boot - and the
mach64 driver detects incorrect dot clock in this case.
This patch makes the driver read the additional divider bit from
PLL_EXT_CNTL and calculate the initial refresh rate properly.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Acked-by: David S. Miller <davem@davemloft.net>
Reviewed-by: Ville Syrjälä <syrjala@sci.fi>
Cc: stable@vger.kernel.org
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2018-10-08 18:57:34 +08:00
|
|
|
extern const u8 aty_postdividers[8];
|
|
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Hardware cursor support
|
|
|
|
|
*/
|
|
|
|
|
|
2019-12-04 00:38:43 +08:00
|
|
|
extern int aty_init_cursor(struct fb_info *info, struct fb_ops *atyfb_ops);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Hardware acceleration
|
|
|
|
|
*/
|
|
|
|
|
|
2018-10-08 18:57:35 +08:00
|
|
|
static inline void wait_for_fifo(u16 entries, struct atyfb_par *par)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2018-10-08 18:57:35 +08:00
|
|
|
unsigned fifo_space = par->fifo_space;
|
|
|
|
|
while (entries > fifo_space) {
|
|
|
|
|
fifo_space = 16 - fls(aty_ld_le32(FIFO_STAT, par) & 0xffff);
|
|
|
|
|
}
|
|
|
|
|
par->fifo_space = fifo_space - entries;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static inline void wait_for_idle(struct atyfb_par *par)
|
|
|
|
|
{
|
|
|
|
|
wait_for_fifo(16, par);
|
|
|
|
|
while ((aty_ld_le32(GUI_STAT, par) & 1) != 0);
|
|
|
|
|
par->blitter_may_be_busy = 0;
|
|
|
|
|
}
|
|
|
|
|
|
2018-10-08 18:57:35 +08:00
|
|
|
extern void aty_reset_engine(struct atyfb_par *par);
|
2005-04-17 06:20:36 +08:00
|
|
|
extern void aty_init_engine(struct atyfb_par *par, struct fb_info *info);
|
2006-10-03 16:15:02 +08:00
|
|
|
|
|
|
|
|
void atyfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
|
|
|
|
|
void atyfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
|
|
|
|
|
void atyfb_imageblit(struct fb_info *info, const struct fb_image *image);
|
|
|
|
|
|
