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* xen: mask out SEP from CPUIDJeremy Fitzhardinge2008-02-291-0/+1
| | | | | | | | | | Fix 32-on-64 pvops kernel: we don't want userspace using syscall/sysenter, even if the hypervisor supports it, so mask it out from CPUID. Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86 ptrace: fix ptrace_bts_config structure declarationDave Anderson2008-02-291-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The 2.6.25 ptrace_bts_config structure in asm-x86/ptrace-abi.h is defined with u32 types: #include <asm/types.h> /* configuration/status structure used in PTRACE_BTS_CONFIG and PTRACE_BTS_STATUS commands. */ struct ptrace_bts_config { /* requested or actual size of BTS buffer in bytes */ u32 size; /* bitmask of below flags */ u32 flags; /* buffer overflow signal */ u32 signal; /* actual size of bts_struct in bytes */ u32 bts_size; }; #endif But u32 is only accessible in asm-x86/types.h if __KERNEL__, leading to compile errors when ptrace.h is included from user-space. The double-underscore versions that are exported to user-space in asm-x86/types.h should be used instead. Signed-off-by: Dave Anderson <anderson@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: disable BTS ptrace extensions for nowIngo Molnar2008-02-293-0/+16
| | | | | | | | | | | | | | | | revert the BTS ptrace extension for now. based on general objections from Roland McGrath: http://lkml.org/lkml/2008/2/21/323 we'll let the BTS functionality cook some more and re-enable it in v2.6.26. We'll leave the dead code around to help the development of this code. (X86_BTS is not defined at the moment) Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: CPA: avoid split of alias mappingsThomas Gleixner2008-02-291-10/+11
| | | | | | | | | | | | | | | | avoid over-eager large page splitup. When the target area needs to be split or is split already (ioremap) then the current code enforces the split of large mappings in the alias regions even if we could avoid it. Use a separate variable processed in the cpa_data structure to carry the number of pages which have been processed instead of reusing the numpages variable. This keeps numpages intact and gives the alias code a chance to keep large mappings intact. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: delay the export removal of init_mmIngo Molnar2008-02-292-0/+13
| | | | | | | delay the removal of this symbol export by one more kernel release, giving external modules such as VirtualBox a chance to stop using it. Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: fix leak un ioremap_page_range() failureIngo Molnar2008-02-291-1/+1
| | | | | | | | | Jan Beulich noticed it during code review that if a driver's ioremap() fails (say due to -ENOMEM) then we might leak the struct vm_area. Free it properly. Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86 vdso: fix build locale dependencyRoland McGrath2008-02-291-2/+4
| | | | | | | | | | | | | | | Priit Laes discovered that the sed command processing nm output was sensitive to locale settings. This was addressed in commit 03994f01e8b72b3d01fd3d09d1cc7c9f421a727c by using [:alnum:] in place of [a-zA-Z0-9]. But that solution too is locale-dependent and may not always match the identifiers it needs to. The better fix is just to run sed et al with a fixed locale setting in all builds. Signed-off-by: Roland McGrath <roland@redhat.com> CC: Priit Laes <plaes@plaes.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: restore vsyscall64 prochandlerThomas Gleixner2008-02-291-1/+10
| | | | | | | | | | | | | | | | | | | | a recent fix: commit ce28b9864b853803320c3f1d8de1b81aa4120b14 Author: Thomas Gleixner <tglx@linutronix.de> Date: Wed Feb 20 23:57:30 2008 +0100 x86: fix vsyscall wreckage removed the broken /kernel/vsyscall64 handler completely. This triggers the following debug check: sysctl table check failed: /kernel/vsyscall64 No proc_handler Restore the sane part of the proc handler. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: fix pmd_bad and pud_bad to support huge pagesHans Rosenfeld2008-02-292-3/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I recently stumbled upon a problem in the support for huge pages. If a program using huge pages does not explicitly unmap them, they remain mapped (and therefore, are lost) after the program exits. I observed that the free huge page count in /proc/meminfo decreased when running my program, and it did not increase after the program exited. After running the program a few times, no more huge pages could be allocated. The reason for this seems to be that the x86 pmd_bad and pud_bad consider pmd/pud entries having the PSE bit set invalid. I think there is nothing wrong with this bit being set, it just indicates that the lowest level of translation has been reached. This bit has to be (and is) checked after the basic validity of the entry has been checked, like in this fragment from follow_page() in mm/memory.c: if (pmd_none(*pmd) || unlikely(pmd_bad(*pmd))) goto no_page_table; if (pmd_huge(*pmd)) { BUG_ON(flags & FOLL_GET); page = follow_huge_pmd(mm, address, pmd, flags & FOLL_WRITE); goto out; } Note that this code currently doesn't work as intended if the pmd refers to a huge page, the pmd_huge() check can not be reached if the page is huge. Extending pmd_bad() (and, for future 1GB page support, pud_bad()) to allow for the PSE bit being set fixes this. For similar reasons, allowing the NX bit being set is necessary, too. I have seen huge pages having the NX bit set in their pmd entry, which would cause the same problem. Signed-Off-By: Hans Rosenfeld <hans.rosenfeld@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: tls prevent_tail_callRoland McGrath2008-02-291-2/+6
| | | | | | | | | | | | | | Fix a kernel bug (vmware boot problem) reported by Tomasz Grobelny, which occurs with certain .config variants and gccs. The x86 TLS cleanup in commit efd1ca52d04d2f6df337a3332cee56cd60e6d4c4 made the sys_set_thread_area and sys_get_thread_area functions ripe for tail call optimization. If the compiler chooses to use it for them, it can clobber the user trap frame because these are asmlinkage functions. Reported-by: Tomasz Grobelny <tomasz@grobelny.oswiecenia.net> Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/alsa-fix-2.6Linus Torvalds2008-02-2916-27/+88
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/alsa-fix-2.6: [ALSA] intel8x0 - Add quirk for Compaq Deskpro EN [ALSA] hda-codec - Adapt eeepc p701 mixer for virtual master control [ALSA] sound: ice1712: unused structs [ALSA] ASoC: Fix WM9712 mixer_event DAPM widget function type [ALSA] ASoC: Fix DAPM widget function types in pxa machine drivers [ALSA] hda-codec - Fix mixer names of realtek codecs to adapt mater controls [ALSA] intel8x0 - Add quirk for Acer Travelmate 2310 [ALSA] hda_intel - Add model quirk for Albatron KI690-AM2 motherboard [ALSA] oxygen: add owner field [ALSA] hda-codec - Add Fujitsu Lifebook E8410 to quirk table [ALSA] hda-codec - Fix AD1988 capture elements [ALSA] sb8: fix SB 1.0 capture DMA programming [ALSA] usb-audio: add workaround for broken E-Mu frequency feedback [ALSA] ASoC: Fix TLV320AIC3X PLL divider table for 64 kHz rate [ALSA] hda-codec - Fix Master volume on HP dv8000
| * [ALSA] intel8x0 - Add quirk for Compaq Deskpro ENTakashi Iwai2008-02-291-0/+6
| | | | | | | | | | | | Added the ac97_quirk hp_only for Compaq Deskpro EN. Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * [ALSA] hda-codec - Adapt eeepc p701 mixer for virtual master controlHerton Ronaldo Krzesinski2008-02-291-2/+2
| | | | | | | | | | | | | | | | Fix the line-out volume control of eeepc p701 to be a proper slave of the virtual master control. Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * [ALSA] sound: ice1712: unused structsHarvey Harrison2008-02-292-2/+2
| | | | | | | | | | | | | | | | | | | | Don't need to declare a struct when defining a structure layout. Both of these structs are unused. sound/pci/ice1712/revo.c:39:3: warning: symbol 'revo51' was not declared. Should it be static? sound/pci/ice1712/phase.c:54:3: warning: symbol 'phase28' was not declared. Should it be static? Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * [ALSA] ASoC: Fix WM9712 mixer_event DAPM widget function typeJarkko Nikula2008-02-291-1/+2
| | | | | | | | | | | | | | | | Add kcontrol argument to function since the API was changed by the commit 9af6d9562414568ecadf96aaef5b88e7e8b19821. Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * [ALSA] ASoC: Fix DAPM widget function types in pxa machine driversJarkko Nikula2008-02-294-5/+10
| | | | | | | | | | | | | | | | Add kcontrol argument to functions since the API was changed by the commit 9af6d9562414568ecadf96aaef5b88e7e8b19821. Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * [ALSA] hda-codec - Fix mixer names of realtek codecs to adapt mater controlsTakashi Iwai2008-02-291-8/+8
| | | | | | | | | | | | | | | | | | | | | | Some models like eeepc ep20 have invalid mixer names that aren't handled properly by virtual master controls. Rename them to the proper names. Also fixed some typos in the mixer names but they are not compiled in right now. Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * [ALSA] intel8x0 - Add quirk for Acer Travelmate 2310Takashi Iwai2008-02-291-0/+6
| | | | | | | | | | | | | | | | Added ac97_quirk=hp-only for Acer Travelmate 2310. ALSA bug#3656 https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3656 Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * [ALSA] hda_intel - Add model quirk for Albatron KI690-AM2 motherboardAndrew Paprocki2008-02-291-0/+1
| | | | | | | | | | | | | | | | This adds a quirk to the Realtek ALC883 table for the Albatron KI690-AM2 motherboard to use the 6stack-dig model. Signed-off-by: Andrew Paprocki <andrew@ishiboo.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * [ALSA] oxygen: add owner fieldClemens Ladisch2008-02-292-0/+2
| | | | | | | | | | | | | | I forgot to set the module owner for the HiFier/Xonar models. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * [ALSA] hda-codec - Add Fujitsu Lifebook E8410 to quirk tableTony Vroon2008-02-291-0/+1
| | | | | | | | | | | | | | Add the proper model entry for Fujitsu Lifebook E8410 with ALC262 codec. From: Tony Vroon <tony@linx.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * [ALSA] hda-codec - Fix AD1988 capture elementsTakashi Iwai2008-02-291-4/+4
| | | | | | | | | | | | | | | | The some indices of capture elements of AD1988 are wrongly assigned. This patch fixes it. See ALSA bug#3795 https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3795 Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * [ALSA] sb8: fix SB 1.0 capture DMA programmingClemens Ladisch2008-02-291-1/+1
| | | | | | | | | | | | | | | | Fix a wrong version check that would cause an invalid command to be sent to SB 1.0 chips. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * [ALSA] usb-audio: add workaround for broken E-Mu frequency feedbackClemens Ladisch2008-02-291-2/+36
| | | | | | | | | | | | | | | | | | Add a workaround for the feedback pipe of E-Mu 0202/0404 USB devices that reports the number of samples per packet instead of the number of samples per microframe. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * [ALSA] ASoC: Fix TLV320AIC3X PLL divider table for 64 kHz rateJarkko Nikula2008-02-291-2/+2
| | | | | | | | | | Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * [ALSA] hda-codec - Fix Master volume on HP dv8000Takashi Iwai2008-02-291-0/+5
| | | | | | | | | | | | | | | | | | HP dv8000 laptop has a problem with Master volume. It's due to the connection of the widget 0x13. When it's connected from the analog amp mixer (0x19), it works as expected mysteriously (ALSA bug#3775): https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3775 Signed-off-by: Takashi Iwai <tiwai@suse.de>
* | Merge branch 'avr32-fixes' of ↵Linus Torvalds2008-02-294-1/+8
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6 * 'avr32-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6: avr32: Fix OCD refcounting bug avr32: Call tick_nohz_{stop,restart}_sched_tick() in idle loop avr32: Use correct config symbol in atstk1004 board code avr32: Fix broken pte dump code in do_page_fault() AVR32: Define PAGE_SHARED
| * | avr32: Fix OCD refcounting bugHaavard Skinnemoen2008-02-271-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Iff the parent has TIF_DEBUG set, _and_ clone_flags includes CLONE_PTRACE we should set the TIF_DEBUG flag for the child and increment the ocd refcount. Otherwise, the TIF_DEBUG flag must be unset. Currently, the child inherits TIF_DEBUG from the parent before copy_thread is called, so TIF_DEBUG may be already be set before we determine whether the child is supposed to inherit debugging capabilities from the parent or not. This means that ocd_enable() won't increment the refcount, because TIF_DEBUG is already set, and that TIF_DEBUG will be set for processes that aren't being debugged. This leads to a refcounting asymmetry, which may show up as ------------[ cut here ]------------ Badness at arch/avr32/kernel/ocd.c:73 PC is at ocd_disable+0x34/0x60 LR is at put_lock_stats+0xa/0x20 as reported by David Brownell. Happens when strace'ing a process that forks a new child process, e.g. "strace mount -tjffs2 mtd1 /mnt", and subsequently killing the child process (e.g. "umount /mnt".) Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
| * | avr32: Call tick_nohz_{stop,restart}_sched_tick() in idle loopHaavard Skinnemoen2008-02-151-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes a hang on boot with nohz enabled. nohz is not actually supported in mainline yet, but patches that add support for it are currently under review. When nohz is compiled out, the functions are no-ops, so this patch results in no functional change, but it arguably makes the code more correct. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
| * | avr32: Use correct config symbol in atstk1004 board codeHaavard Skinnemoen2008-02-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | CONFIG_BOARD_ATSTK1002_SW2_CUSTOM should be CONFIG_BOARD_ATSTK100X_SW2_CUSTOM. Spotted by Robert P. J. Day. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
| * | avr32: Fix broken pte dump code in do_page_fault()Haavard Skinnemoen2008-02-131-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The per-task page tables only cover the first 2GiB of the address space. For kernel addresses, we need to do the lookup in init's page tables. This is a temporary workaround until we modify the per-task page tables to cover the whole 4GiB address space. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
| * | AVR32: Define PAGE_SHAREDHaavard Skinnemoen2008-02-131-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | The virtual framebuffer driver needs PAGE_SHARED, which is not defined on avr32. Define it. Reported-by: Oliver Zander <ozander@como.com> Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* | | Merge branch 'for-linus' of ↵Linus Torvalds2008-02-2935-560/+504
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (35 commits) Blackfin Serial Driver: Fix bug - Only insert UART rx char in timer task. Blackfin Serial Driver: Fix bug - update tx dma buffer tail before wake up processes. Blackfin Serial Driver: Fix bug - Increase buffer tail immediately before starting tx dma. [Blackfin] serial driver: Add flow control support to bf54x [Blackfin] serial driver: Fix bug Poll RTS/CTS status in DMA mode as well [Blackfin] serial driver: ADSP-BF52x arch/mach support [Blackfin] serial driver: use simpler comment headers and strip out information that is maintained in the scm's log [Blackfin] serial driver: rework break flood anomaly handling to be more robust/realistic about what we can actually work around [Blackfin] serial driver: fix bug - cache the bits of the LSR on systems where the LSR is read-to-clear [Blackfin] serial driver: fix bug - should not wait for the TFI bit, just clear it when tx stop. [Blackfin] serial driver: Fix bug serial driver in DMA mode spams history to console on shell restart [Blackfin] serial driver: Fix bug Free rx dma buffer in shutdown. [Blackfin] serial driver: Clean up UART DMA code. Blackfin Serial driver: Fix bug - serial driver in PIO mode cant handle input very quickly [Blackfin] arch: kill section mismatch warnings [Blackfin] arch: handle the most common L1 shrinkage case (L1 does not exist for a part) so that any parts labeled for L1 instead get placed into external memory sections [Blackfin] arch: add bfin_clear_PPIx_STATUS() helper funcs like we have for other parts [Blackfin] arch: make sure we have proper description/copyright/license lines [Blackfin] arch: Fix CONFIG_PM support for BF561 [Blackfin] arch: Remove DPMC char driver option ...
| * | | Blackfin Serial Driver: Fix bug - Only insert UART rx char in timer task.Sonic Zhang2008-02-291-16/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3910 Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * | | Blackfin Serial Driver: Fix bug - update tx dma buffer tail before wake up ↵Sonic Zhang2008-02-251-22/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | processes. Also make rx dma buffer work as a loop. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * | | Blackfin Serial Driver: Fix bug - Increase buffer tail immediately before ↵Sonic Zhang2008-02-251-14/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | starting tx dma. http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=2920 Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * | | [Blackfin] serial driver: Add flow control support to bf54xSonic Zhang2008-02-023-2/+17
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | | [Blackfin] serial driver: Fix bug Poll RTS/CTS status in DMA mode as wellSonic Zhang2008-02-026-19/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3858 Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | | [Blackfin] serial driver: ADSP-BF52x arch/mach supportMichael Hennerich2008-02-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | | [Blackfin] serial driver: use simpler comment headers and strip out ↵Mike Frysinger2008-01-111-23/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | information that is maintained in the scm's log Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | | [Blackfin] serial driver: rework break flood anomaly handling to be more ↵Mike Frysinger2007-12-243-14/+58
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | robust/realistic about what we can actually work around Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | | [Blackfin] serial driver: fix bug - cache the bits of the LSR on systems ↵Mike Frysinger2007-12-246-7/+80
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | where the LSR is read-to-clear Cache the bits of the LSR on systems where the LSR is read-to-clear so that we can safely read the LSR in random places. this fixes older parts where break/framing/parity/overflow was not being detected at all in PIO mode, and this fixes newer parts where break/framing/parity/overflow was being reported all the time without being cleared. Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | | [Blackfin] serial driver: fix bug - should not wait for the TFI bit, just ↵Sonic Zhang2007-12-231-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | clear it when tx stop. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | | [Blackfin] serial driver: Fix bug serial driver in DMA mode spams history to ↵Sonic Zhang2007-12-211-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | console on shell restart http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=2920 Fix by increasing buffer tail immediately before starting tx dma. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | | [Blackfin] serial driver: Fix bug Free rx dma buffer in shutdown.Sonic Zhang2007-12-211-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Kernel crash for the serial driver in DMA mode: http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3679 Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | | [Blackfin] serial driver: Clean up UART DMA code.Sonic Zhang2007-12-211-15/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Start next TX DMA in tx dma handler instead of rx timer handler. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | | Blackfin Serial driver: Fix bug - serial driver in PIO mode cant handle ↵Sonic Zhang2007-11-211-48/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | input very quickly Output as many bytes as possible in PIO tx handler. This reduce the number of tx interrupts and shorten the delay to handle rx interrupt. So, rx overrun disappears. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
| * | | [Blackfin] arch: kill section mismatch warningsBryan Wu2008-02-292-4/+9
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * | | [Blackfin] arch: handle the most common L1 shrinkage case (L1 does not exist ↵Mike Frysinger2008-02-291-7/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | for a part) so that any parts labeled for L1 instead get placed into external memory sections Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * | | [Blackfin] arch: add bfin_clear_PPIx_STATUS() helper funcs like we have for ↵Mike Frysinger2008-02-251-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | other parts Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>