- 24 9月, 2009 10 次提交
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由 Alexey Dobriyan 提交于
* remove asm/atomic.h inclusion from linux/utsname.h -- not needed after kref conversion * remove linux/utsname.h inclusion from files which do not need it NOTE: it looks like fs/binfmt_elf.c do not need utsname.h, however due to some personality stuff it _is_ needed -- cowardly leave ELF-related headers and files alone. Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Ira W. Snyder 提交于
When power is applied to the ltc4245 chip it sometimes reports spurious faults, which are exposed as alarms in the hwmon output. Clear the fault register when the driver is installed to clear the alarms. Signed-off-by: NIra W. Snyder <iws@ovro.caltech.edu> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Ira W. Snyder 提交于
When power is applied to the ltc4215 chip it sometimes reports spurious faults. The faults are not yet exposed via sysfs, however it may be useful for userspace to read the fault register directly with the i2cget command. Clear the fault register when the driver is installed so userspace doesn't have to worry about spurious fault indications. Signed-off-by: NIra W. Snyder <iws@ovro.caltech.edu> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Huaxu Wan 提交于
Add Lynnfield processor support. Lynnfield is a quad-core Nehalem based microprocessor for Desktop market, which is introduced in September 2009. Signed-off-by: NHuaxu Wan <huaxu.wan@linux.intel.com> Signed-off-by: NKent Liu <kent.liu@linux.intel.com> Acked-by: NRudolf Marek <r.marek@assembler.cz> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Rudolf Marek 提交于
Following patch adds support for mobile Penryn CPUs. Intel documents this poorly. I asked the Coretemp author for some help. This is totally untested and may not work. Please test! Signed-off-by: NRudolf Marek <r.marek@assembler.cz> Cc: Huaxu Wan <huaxu.wan@linux.intel.com> Cc: Kent Liu <kent.liu@linux.intel.com> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Rudolf Marek 提交于
Fix Atom CPUs support. Intel documents TjMax at 90 degrees C but some Atoms may have 125 degrees C (this is undocumented speculation). Signed-off-by: NRudolf Marek <r.marek@assembler.cz> Cc: Huaxu Wan <huaxu.wan@linux.intel.com> Cc: Kent Liu <kent.liu@linux.intel.com> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Jean Delvare 提交于
The legacy fscpos and fscher drivers have been replaced by the unified fschmd driver. The transition period is over now, we can delete them. Signed-off-by: NJean Delvare <khali@linux-fr.org> Acked-by: NHans de Goede <hdegoede@redhat.com>
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由 Ira Snyder 提交于
The ADM1030/ADM1031 chips have temperature offset registers, for both the local and remote temperature sensors. Following the example set forth in the LM90/ADM1032 driver, expose the offset registers to userspace. Signed-off-by: NIra W. Snyder <iws@ovro.caltech.edu> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Randy Dunlap 提交于
Fix new kernel-doc warnings in serial_core.[hc] files. Warning(include/linux/serial_core.h:485): No description found for parameter 'uport' Warning(include/linux/serial_core.h:485): Excess function parameter 'port' description in 'uart_handle_dcd_change' Warning(include/linux/serial_core.h:511): No description found for parameter 'uport' Warning(include/linux/serial_core.h:511): Excess function parameter 'port' description in 'uart_handle_cts_change' Warning(drivers/serial/serial_core.c:2437): No description found for parameter 'uport' Warning(drivers/serial/serial_core.c:2437): Excess function parameter 'port' description in 'uart_add_one_port' Warning(drivers/serial/serial_core.c:2509): No description found for parameter 'uport' Warning(drivers/serial/serial_core.c:2509): Excess function parameter 'port' description in 'uart_remove_one_port' Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jason Gunthorpe 提交于
Signed-off-by: NJason Gunthorpe <jgunthorpe@obsidianresearch.com> Cc: Debora Velarde <debora@linux.vnet.ibm.com> Cc: Rajiv Andrade <srajiv@linux.vnet.ibm.com> Cc: Marcel Selhorst <m.selhorst@sirrix.com> Cc: James Morris <jmorris@namei.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NJames Morris <jmorris@namei.org>
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- 23 9月, 2009 30 次提交
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由 Aaro Koskinen 提交于
The patch enables the driver to be used on platforms such as ARM where an I/O address is a 32-bit memory address. The patch avoids the following kernel oops: debian:~# modprobe sisfb [ 73.070000] sisfb: Video ROM found [ 73.080000] sisfb: Video RAM at 0x80000000, mapped to 0xe0a00000, size 1024k [ 73.090000] sisfb: MMIO at 0x84080000, mapped to 0xe0b80000, size 256k [ 73.090000] sisfb: Memory heap starting at 800K, size 32K [ 73.360000] Unable to handle kernel paging request at virtual address 6e000844 [ 73.380000] pgd = df230000 [ 73.380000] [6e000844] *pgd=00000000 [ 73.380000] Internal error: Oops: 8f5 [#1] [ 73.380000] Modules linked in: sisfb(+) fb cfbcopyarea cfbimgblt cfbfillrect [ 73.380000] CPU: 0 Not tainted (2.6.31-iop32x #1) [ 73.380000] PC is at SiS_SetRegANDOR+0x10/0x38 [sisfb] [ 73.380000] LR is at SiS_SetSCLKHigh+0x38/0x94 [sisfb] [ 73.380000] pc : [<bf01dc00>] lr : [<bf0238f8>] psr: 60000013 [ 73.380000] sp : df38fd00 ip : 6e000000 fp : 00000002 [ 73.380000] r10: 00000108 r9 : 00000000 r8 : 00000108 [ 73.380000] r7 : df064258 r6 : 00000110 r5 : 6e000844 r4 : 0000010a [ 73.380000] r3 : 00000001 r2 : 0000000e r1 : 00000011 r0 : 00000844 [ 73.380000] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user [ 73.380000] Control: 0000397f Table: bf230000 DAC: 00000015 [ 73.380000] Process modprobe (pid: 1849, stack limit = 0xdf38e270) [ 73.380000] Stack: (0xdf38fd00 to 0xdf390000) [ 73.380000] fd00: 0000010a 00000108 df064258 df064258 df064258 00000000 00000000 bf02c4e0 [ 73.380000] fd20: 00000114 bf02c50c 00000013 00000114 0000010a df064258 00000000 bf02c980 [ 73.380000] fd40: 00009c66 00000004 00000001 df064250 a0010000 a6a2a0a0 df064250 00000003 [ 73.380000] fd60: df064250 00000000 df064258 0000fffd 00000000 00000000 00000000 bf033948 [ 73.380000] fd80: 00000000 00000000 00000000 bf019e2c 00000000 df064a70 bf03b470 00010000 [ 73.380000] fda0: 00000000 df064250 00000000 df831c00 00000012 bf039f70 00000000 c00abed8 [ 73.380000] fdc0: 000008a6 000008a4 df0649b0 df064878 df064258 df064000 00000000 00000000 [ 73.380000] fde0: 00000001 00008000 00000001 00030000 df81c930 bf049f88 df831c00 00000000 [ 73.380000] fe00: bf049f58 df3952a0 c0447708 bf049f88 bf049fe0 c0191980 df831c00 c0191b10 [ 73.380000] fe20: df831c58 bf049f58 df831c00 bf04aca8 df3952a0 df831c58 df831c58 bf049f88 [ 73.380000] fe40: c01ba1b4 c01ba0a0 df831c58 df831c8c bf049f88 c01ba1b4 df3952a0 00000000 [ 73.380000] fe60: c03e265c c01ba240 00000000 df38fe78 bf049f88 c01b990c df812938 df81b8d0 [ 73.380000] fe80: df3952a0 df807780 00000000 00000060 bf049f88 c01b9224 bf0429c8 00000000 [ 73.380000] fea0: bf049f58 00000000 bf049f88 00000000 00000000 bf04aea8 00000000 c01ba4e4 [ 73.380000] fec0: e09861a0 bf049f58 00000000 bf049f88 00000000 c0191f20 00000000 00000000 [ 73.380000] fee0: c03f7bac bf04d418 0000fff2 0000fff1 bf04ad08 0002f260 0002f260 e0986038 [ 73.380000] ff00: e0986150 e098568b df143340 e0990280 00000036 c03d8b00 fffffffd 00000000 [ 73.380000] ff20: bf04acfc 00000000 fffffffc 0003cf4b 00018098 c03f7bac 00000000 bf04d000 [ 73.380000] ff40: df38e000 00000000 bedc0984 c00272a4 ffffffff c005bc88 00000000 00000000 [ 73.380000] ff60: 0003cf4b 0003cf4b 00018098 bf04acfc 00000000 c0027fe8 df38e000 00000000 [ 73.380000] ff80: bedc0984 c006882c 00001000 00000003 00000000 00009064 00000000 00008edc [ 73.380000] ffa0: 00000080 c0027e20 00009064 00000000 4014e000 0003cf4b 00018098 0003cf4b [ 73.380000] ffc0: 00009064 00000000 00008edc 00000080 00000000 00000000 40025000 bedc0984 [ 73.380000] ffe0: 00000000 bedc08fc 0000b6b0 400e8f34 60000010 4014e000 00000000 00000000 [ 73.380000] [<bf01dc00>] (SiS_SetRegANDOR+0x10/0x38 [sisfb]) from [<df064258>] (0xdf064258) [ 73.380000] Code: e92d0030 e20110ff e280546e e3a0c46e (e5c51000) [ 73.680000] ---[ end trace 62a93e01df37a5f2 ]--- Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi> Cc: Thomas Winischhofer <thomas@winischhofer.net> Cc: <stable@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Peter Korsgaard 提交于
Fixes `s3c_fb_remove' referenced in section `.data' of drivers/built-in.o: defined in discarded section `.devexit.text' of drivers/built-in.o With CONFIG_HOTPLUG=n, functions marked with __devexit gets removed, so make sure we use __devexit_p when referencing pointers to them. Signed-off-by: NPeter Korsgaard <jacmet@sunsite.dk> Acked-by: NBen Dooks <ben-linux@fluff.org> Cc: <stable@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Andrew Morton 提交于
drivers/video/tmiofb.c: In function 'tmiofb_resume': drivers/video/tmiofb.c:977: warning: 'retval' may be used uninitialized in this function Acked-by: NDmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Francisco Jerez 提交于
fbcon makes the (reasonable) assumption that it only needs to program the hardware once, when fbcon_init() is called for the foreground console. This doesn't always play well with vgacon because vgacon_deinit() is only doing its job when the last console it owns is closed (when switching from vgacon to fbcon, that's usually *after* fbcon_init() has set the new mode). Depending on the hardware this can cause the wrong framebuffer location to be scanned out (e.g. reproduced on nv05 with the nouveau framebuffer driver). Signed-off-by: NFrancisco Jerez <currojerez@riseup.net> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Ian Armstrong 提交于
Attempting to unload a framebuffer module calls unregister_framebuffer() which in turn gets fbcon to release it. If fbcon has no framebuffers linked to a console, it will also unbind itself from the console driver. However, if fbcon never registered itself as a console driver, the unbind will fail causing the framebuffer device entry to persist. In most cases this failure will result in an oops when attempting to access the now non-existent device. This patch ensures that the fbcon unbind request will succeed even if a bind was never done. It tracks if a successful bind ever occurred & will only attempt to unbind if needed. If there never was a bind, it simply returns with no error. Signed-off-by: NIan Armstrong <ian@iarmst.demon.co.uk> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: <stable@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jean Delvare 提交于
CONFIG_FB_MATROX_32MB is always enabled, so there is no point in having ifdefs all around. And it is bad practice to use CONFIG_* as a name for something which is not a Kconfig option. Signed-off-by: NJean Delvare <khali@linux-fr.org> Acked-by: NPetr Vandrovec <vandrove@vc.cvut.cz> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jean Delvare 提交于
With multihead support always enabled, macros MINFO_FROM and MINFO_FROM_INFO are no longer needed and make the code harder to read. Signed-off-by: NJean Delvare <khali@linux-fr.org> Acked-by: NPetr Vandrovec <vandrove@vc.cvut.cz> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jean Delvare 提交于
With multihead support always enabled, these macros are no longer needed and make the code harder to read. Signed-off-by: NJean Delvare <khali@linux-fr.org> Acked-by: NPetr Vandrovec <vandrove@vc.cvut.cz> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jean Delvare 提交于
With multihead support always enabled, these macros are no longer needed and make the code harder to read. Signed-off-by: NJean Delvare <khali@linux-fr.org> Acked-by: NPetr Vandrovec <vandrove@vc.cvut.cz> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jean Delvare 提交于
I would like to get rid of option CONFIG_FB_MATROX_MULTIHEAD and just always enable it. There are many reasons for doing this: * CONFIG_FB_MATROX_MULTIHEAD=y is what all x86 distributions do, so it definitely works or we would know by now. * Building the matroxfb driver with CONFIG_FB_MATROX_MULTIHEAD not set results in the following build warning: drivers/video/matrox/matroxfb_crtc2.c: In function 'matroxfb_dh_open': drivers/video/matrox/matroxfb_crtc2.c:265: warning: the address of 'matroxfb_global_mxinfo' will always evaluate as 'true' drivers/video/matrox/matroxfb_crtc2.c: In function 'matroxfb_dh_release': drivers/video/matrox/matroxfb_crtc2.c:285: warning: the address of 'matroxfb_global_mxinfo' will always evaluate as 'true' This is nothing to be worried about, the driver will work fine, but build warnings are still annoying. * The trick to get multihead support without CONFIG_FB_MATROX_MULTIHEAD, which is described in the config help text, no longer works: you can't load the same kernel module more than once. * I fail to see how CONFIG_FB_MATROX_MULTIHEAD=y would make the code significantly slower, contrary to what the help text says. A few extra parameters on the stack here and there can't really slow things down in comaprison to the rest of the code, and register access. * The driver built without CONFIG_FB_MATROX_MULTIHEAD is larger than the driver build with CONFIG_FB_MATROX_MULTIHEAD=y by 8%. * One less configuration option makes things simpler. We add options all the time, being able to remove one for once is nice. It improves testing coverage. And I don't think the Matrox adapters are still popular enough to warrant overdetailed configuration settings. * We should be able to unobfuscate the driver code quite a bit after this change (patches follow.) Signed-off-by: NJean Delvare <khali@linux-fr.org> Acked-by: NPetr Vandrovec <vandrove@vc.cvut.cz> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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At the moment about half of the framebuffer drivers can return an error code in fb_set_par. Until now it would be silently ignored by fbmem.c and fbcon.c. This patch fixes fbmem.c to return the error code and restore var on error. But it is not clear in which video mode the device is when fb_set_par fails. It would be good and reasonable if it were in the old state but there is no guarantee that this is true for all existing drivers. Additionally print a message if a failing fb_set_par is detected in fbmem.c or fbcon.c. Although most errors should be caught by the previous fb_check_var some errors can't as they are dynamic (memory allocations, ...) and can only be detected while performing the operations which is forbidden in fb_check_var. This patch shouldn't have a negative impact on normal operation as all drivers return 0 on success. The impact in case of error depends heavily on the driver and caller but it's expected to be better than before. Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Ben Dooks 提交于
In the final part of the calculation for the tft display clockrate we divide the output pf s3c2410fb_calc_pixclk() by 2 which leaves us with a rounding error if the result is odd. Change to using DIV_ROUND_UP() to ensure that we always choose a higher divisor and thus a lower frequency. Signed-off-by: NBen Dooks <ben@simtec.co.uk> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jiri Slaby 提交于
Use DIV_ROUND_UP explicitly instead of manual shifts and adds. It makes the code more readable and consistent (sometimes there were shifts, sometimes divs). There is no change on the assembly level (compilers should do the right job). Signed-off-by: NJiri Slaby <jirislaby@gmail.com> Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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Fix the range check for panning. The current code fails to detect some invalid values (very high ones that can occur if an app tries to move further up/left than 0,0) as the check uses the unknown values for calculation so that an overflow can occur. To fix this it is sufficient to move the calculation to the right side to use only trusted values. Kai Jiang detected this problem and proposed an initial patch. Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Kai Jiang <b18973@freescale.com> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Julia Lawall 提交于
Check that the result of kmalloc is not NULL before passing it to other functions. The semantic match that finds this problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ expression *x; identifier f; constant char *C; @@ x = \(kmalloc\|kcalloc\|kzalloc\)(...); ... when != x == NULL when != x != NULL when != (x || ...) ( kfree(x) | f(...,C,...,x,...) | *f(...,x,...) | *x->f ) // </smpl> [akpm@linux-foundation.org: convert to kstrdup() as well] Signed-off-by: NJulia Lawall <julia@diku.dk> Cc: Ming Lei <tom.leiming@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Roel Kluin 提交于
It reads linetable[] before checking bounds of index, and ARRAY_SIZE is required because linetable[] are unsigned shorts. Signed-off-by: NRoel Kluin <roel.kluin@gmail.com> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Harald Welte 提交于
Signed-off-by: NHarald Welte <HaraldWelte@viatech.com> Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Scott Fang <ScottFang@viatech.com.cn> Cc: Joseph Chan <JosephChan@via.com.tw> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Harald Welte 提交于
Signed-off-by: NHarald Welte <HaraldWelte@viatech.com> Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Scott Fang <ScottFang@viatech.com.cn> Cc: Joseph Chan <JosephChan@via.com.tw> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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Enable 2D hardware acceleration on VX855 for copyarea, imageblit and fillrect by selecting the correct engine which is the same as in VX800. Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Scott Fang <ScottFang@viatech.com.cn> Cc: Joseph Chan <JosephChan@via.com.tw> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Harald Welte 提交于
Add support for a new VIA integrated graphics chipset, the VX855. Signed-off-by: NHaraldWelte <HaraldWelte@viatech.com> Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Scott Fang <ScottFang@viatech.com.cn> Cc: Joseph Chan <JosephChan@via.com.tw> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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viafb: use read-only mode parsing The previous method of mode parsing wrote to the strings resulting in truncated mode strings in the sysfs. Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Scott Fang <ScottFang@viatech.com.cn> Cc: Joseph Chan <JosephChan@via.com.tw> Cc: Harald Welte <laforge@gnumonks.org> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Harald Welte 提交于
Remove a structure member 'on_slot' in the chip_info structure which is completely unused. Signed-off-by: NHarald Welte <HaraldWelte@viatech.com> Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Scott Fang <ScottFang@viatech.com.cn> Cc: Joseph Chan <JosephChan@via.com.tw> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Harald Welte 提交于
Signed-off-by: NHarald Welte <HaraldWelte@viatech.com> Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Scott Fang <ScottFang@viatech.com.cn> Cc: Joseph Chan <JosephChan@via.com.tw> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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The main motivation of this patch was to merge the three initialization functions in one and clean it up. However as some changes in other code areas where needed to do it right some small other changes were made. Changes to viafb_par: io_virt renamed as engine_mmio and moved to shared VQ_start renamed as vq_vram_addr and moved to shared VQ_end removed as it is easily recalculatable vq_vram_addr is not strictly needed but keep it to track where we allocated video memory. The memory allocated for the virtual queue was shrunk to VQ_SIZE as VQ_SIZE+CURSOR_SIZE looked like a bug to me. But to be honest I don't have the faintest idea what virtual queues are for in the graphic hardware and whether the driver needs them in any way. I only know that they aren't directly accessed by the driver and so the only potential current use would be as hardware internal buffers. For now keep them to avoid regressions and only remove the double cursor allocation. The most changes were caused by renames and the mentioned structure changes so the chance of regressions is pretty low. The meaning of viafb_accel changed slightly as previously it was changed back and forth in the code and allowed to enable the hardware acceleration by software if previously disabled. The new behaviour is that viafb_accel=0 always prevents hardware acceleration. With viafb_accel!=0 the acceleration can be freely choosen by set_var. This means viafb_accel is a diagnostic tool and if someone has to use viafb_accel=0 the driver needs to be fixed. As this is mostly a code cleanup no regressions beside the slightly change of viafb_accel is expected. Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Scott Fang <ScottFang@viatech.com.cn> Cc: Joseph Chan <JosephChan@via.com.tw> Cc: Harald Welte <laforge@gnumonks.org> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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Split the pitch handling up and replaces the calculation from virtual xres and bpp with fix.line_length which already contains the pitch and does not add any constrains for the virtual resolution. Also add a bit to the second pitch which the documentation mentions but which was ignored by the driver. Although it is a bit unclear what the right pitch for some LCD modes is this patch should have no negative runtime impact. Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Scott Fang <ScottFang@viatech.com.cn> Cc: Joseph Chan <JosephChan@via.com.tw> Cc: Harald Welte <laforge@gnumonks.org> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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Clean the hardware cursor handling up. The most notable change is that it no longer buffers the values in viacursor but uses the ones in cursor instead as they are guaranteed to be always valid. Furthermore it uses local instead global variables where possible, moves the cursor variable in shared as only one hardware cursor is supported and returns an error if memory allocation fails. Last but not least it fixes a too small buffer (as u32 has only 4 and not 32 bytes) but this did not produce any known problems. This is mostly a code cleanup, no negative runtime changes are expected. Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Scott Fang <ScottFang@viatech.com.cn> Cc: Joseph Chan <JosephChan@via.com.tw> Cc: Harald Welte <laforge@gnumonks.org> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Alexey Dobriyan 提交于
Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com> Acked-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Scott Fang <ScottFang@viatech.com.cn> Cc: Joseph Chan <JosephChan@via.com.tw> Cc: Harald Welte <laforge@gnumonks.org> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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This patch is a completly rewritten 2D engine. The engine is no longer in a default state but reinitialized every time to allow usage for both framebuffers regardless of their settings. The whole engine handling is concentrated in a big function which takes 16 parameters. Although the number of parameters is worryingly it is good to have a single funtion to deal with this stuff as it allows to easily support different engines and avoids some code duplication. On the way support for the new 2D engine in VX800 was added. As the with less code duplication but it is probably better to duplicate the code as this way is easier to walk if VIA ever decides to release a new engine which changes anything the driver touches. The engine support for VX800 gives a notable boost in speed. There are no known regressions but as this patch changes paths I do neither have the hardware nor documentation to check and has the possibility to put the system in a critical state heavy testing is appreciated. Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Scott Fang <ScottFang@viatech.com.cn> Cc: Joseph Chan <JosephChan@via.com.tw> Cc: Harald Welte <laforge@gnumonks.org> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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This patch introduces viafb_shared and is the beginning of a smooth transition to use it. viafb_shared should contain all general, non-surface specific data that should be shared along all viafb framebuffers while viafb_par should only contain things that are specific to each surface or in other words extend fb_info. This change is intended to clean the dual/multi framebuffer handling up. This removes the annoyance that viafbinfo1->par points to a different structure than viaparinfo1. As the last change is fundamental it is difficult to ensure that all parts of the driver do not depend on the previous brokenness but the chance of regressions is very low. Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Scott Fang <ScottFang@viatech.com.cn> Cc: Joseph Chan <JosephChan@via.com.tw> Cc: Harald Welte <laforge@gnumonks.org> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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This removes the completly useless io variable as well as the temporary used variables mmio_base and mmio_len in favor to use directly the fb_info variables. This is a code cleanup only, no runtime change expected. Signed-off-by: NFlorian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Scott Fang <ScottFang@viatech.com.cn> Cc: Joseph Chan <JosephChan@via.com.tw> Cc: Harald Welte <laforge@gnumonks.org> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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