summaryrefslogtreecommitdiff
AgeCommit message (Collapse)Author
2012-12-13MIPS: IP27: Correct fucked grammar in ops-bridge.cDave Jones
I had no idea just how broken IOC3 was until I read this. Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-12-13MIPS: Highmem: Fix build error if CONFIG_DEBUG_HIGHMEM is disabledRalf Baechle
CC arch/mips/mm/highmem.o /home/ralf/src/linux/linux-mips/arch/mips/mm/highmem.c: In function ‘__kunmap_atomic’: /home/ralf/src/linux/linux-mips/arch/mips/mm/highmem.c:70:6: error: variable ‘type’ set but not used [-Werror=unused-but-set-variable] cc1: all warnings being treated as errors This warning exists in gcc 4.6.0 and newer. Kernels 2.6.40 and newer use -Wunused-but-set-variable to suppress it. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-12-13MIPS: Fix potencial corruptionRalf Baechle
Normally r4k_dma_cache_inv should only ever be called with cacheline aligned addresses. If however, it isn't there is the theoretical possibility of data corruption. There is no correct way of handling this and anyway, it should only happen if the DMA API is used incorrectly so drop There is a different corruption scenario with these CACHE instructions removed but again there is no way of handling this correctly and it can be triggered only through incorrect use of the DMA API. So just get rid of the complexity. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Reported-by: James Rodriguez <jamesr@juniper.net>
2012-12-13MIPS: Fix for warning from FPU emulation codeRalf Baechle
The default implementation of 'cpu_has_fpu' macro calls smp_processor_id() which causes this warning to be printed when preemption is enabled: [ 4.664000] Algorithmics/MIPS FPU Emulator v1.5 [ 4.676000] BUG: using smp_processor_id() in preemptible [00000000] code: ini [ 4.700000] caller is fpu_emulator_cop1Handler+0x434/0x27b8 This problem got introduced in November 2009 by af1d2af877ef6c36990671bc86a5b9c5bb50b1da (lmo) [MIPS: Fix emulation of 64-bit FPU on 64-bit CPUs.] rsp. da0bac33413b2888d3623dad3ad19ce76b688f07 (kernel.org) [MIPS: Fix emulation of 64-bit FPU on FPU-less 64-bit CPUs.] in 2.6.32. Fixed by rewriting cop1_64bit() to return a constant whenever possible but most importantly avoid the use pf cpu_has_fpu entirely. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Reported-by: Jayachandran C <jchandra@broadcom.com> Initial-patch-by: Jayachandran C <jchandra@broadcom.com> Patchwork: https://patchwork.linux-mips.org/patch/4225/
2012-12-13MIPS: Handle COP3 Unusable exception as COP1X for FP emulationMaciej W. Rozycki
Our FP emulator is hardcoded for the MIPS IV FP instruction set and does not match the FP ISA with the general ISA. However for the few MIPS IV FP instructions that use the COP1X major opcode it relies on the Coprocessor Unusable exception to be delivered as a COP1 rather than COP3 exception. This includes indexed transfer (LDXC1, etc.) and FP multiply-accumulate (MADD.D, etc.) instructions. All the MIPS I, II, III and IV processors and some newer chips that do not implement the FPU use the COP3 exception however. Therefore I believe the kernel should follow and redirect any COP3 Unusable traps to the emulator unless an actual FPU part or core is present. This is a change that implements it. Any minor opcode encodings that are not recognised as valid FP instructions are rejected by the emulator and will result in a SIGILL signal being delivered as they currently do. We do not support vendor-specific coprocessor 3 implementations supported with MIPS I and MIPS II ISA processors; we never set CP0.Status.CU3. [Ralf: On MIPS IV processors the kernel always enables the XX bit which replaces the CU3 bit off earlier architecture revisions.] If matching between the CPU and the FPU ISA is considered required one day, this can still be done in the emulator itself. I think the CpU exception dispatcher is not the right place to do this anyway, as there are further differences between MIPS I, MIPS II, MIPS III, MIPS IV and MIPS32 FP ISAs. Corresponding explanation of this implementation is included within the change itself. Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/project/linux-mips/list/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-12-13MIPS: Fix poweroff failure when HOTPLUG_CPU configured.Huacai Chen
When poweroff machine, kernel_power_off() call disable_nonboot_cpus(). And if we have HOTPLUG_CPU configured, disable_nonboot_cpus() is not an empty function but attempt to actually disable the nonboot cpus. Since system state is SYSTEM_POWER_OFF, play_dead() won't be called and thus disable_nonboot_cpus() hangs. Therefore, we make this patch to avoid poweroff failure. Signed-off-by: Huacai Chen <chenhc@lemote.com> Signed-off-by: Hongliang Tao <taohl@lemote.com> Signed-off-by: Hua Yan <yanh@lemote.com> Cc: Yong Zhang <yong.zhang@windriver.com> Cc: stable@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: Fuxin Zhang <zhangfx@lemote.com> Cc: Zhangjin Wu <wuzhangjin@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/4211/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-12-13MIPS: MT: Fix build with CONFIG_UIDGID_STRICT_TYPE_CHECKS=yFlorian Fainelli
When CONFIG_UIDGID_STRICT_TYPE_CHECKS is enabled, plain integer checking between different uids/gids is explicitely turned into a build failure by making the k{uid,gid}_t types a structure containing a value: arch/mips/kernel/mips-mt-fpaff.c: In function 'check_same_owner': arch/mips/kernel/mips-mt-fpaff.c:53:22: error: invalid operands to binary == (have 'kuid_t' and 'kuid_t') arch/mips/kernel/mips-mt-fpaff.c:54:15: error: invalid operands to binary == (have 'kuid_t' and 'kuid_t') In order to ensure proper comparison between uids, using the helper function uid_eq() which performs the right thing whenever this config option is turned on or off. Signed-off-by: Florian Fainelli <florian@openwrt.org> Patchwork: https://patchwork.linux-mips.org/patch/4717/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-12-13MIPS: Remove unused smvp.hPaul Bolle
This header was added in commit 39b8d5254246ac56342b72f812255c8f7a74dca9 (kernel.org) / b6e90cd0ae7a556080d9ea2ec1b8f6d9accad9d4 (lmo( ([MIPS] Add support for MIPS CMP platform.). None of the functions it declared were ever included in the tree. Commit cb7f39d2bc5a20615d016dd86fca0fd233c13b5d (kernel.org) / b6e90cd0ae7a556080d9ea2ec1b8f6d9accad9d4 (lmo) [MIPS] Remove unused maltasmp.h.] removeed the sole file that included it because that file was itself unused. [ralf@linux-mips.org: The whole mess happened because somebody at MIPS thought it was a good idea to rename VSMP ("Vitual SMP") to SMVP. Which is an IBMeque ETLA in contrast to VSMP, so public kernels as opposed to MTI's inhouse kernels never followed suit.] Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/3950/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-12-13MIPS/EDAC: Improve OCTEON EDAC support.David Daney
Some initialization errors are reported with the existing OCTEON EDAC support patch. Also some parts have more than one memory controller. Fix the errors and add multiple controllers if present. Signed-off-by: David Daney <david.daney@cavium.com>
2012-12-13MIPS: OCTEON: Add definitions for OCTEON memory contoller registers.David Daney
Signed-off-by: David Daney <david.daney@cavium.com>
2012-12-13MIPS: OCTEON: Add OCTEON family definitions to octeon-model.hDavid Daney
Used by follow-on EDAC patches. Signed-off-by: David Daney <david.daney@cavium.com>
2012-12-13ata: pata_octeon_cf: Use correct byte order for DMA in when built little-endian.David Daney
We need to set the 'endian' bit in this case. Acked-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David Daney <david.daney@cavium.com>
2012-12-13MIPS/OCTEON/ata: Convert pata_octeon_cf.c to use device tree.David Daney
The patch needs to eliminate the definition of OCTEON_IRQ_BOOTDMA so that the device tree code can map the interrupt, so in order to not temporarily break things, we do a single patch to both the interrupt registration code and the pata_octeon_cf driver. Also rolled in is a conversion to use hrtimers and corrections to the timing calculations. Acked-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David Daney <david.daney@cavium.com>
2012-12-13MIPS: Remove usage of CEVT_R4K_LIB config option.Ralf Baechle
Manuel Lauss <manuel.lauss@gmail.com> writes: I introduced it as a fallback because early revisions of Alchemy hardware we shipped had a non-functional 32kHz timer and had to rely on the r4k timer instead. Previously the r4k timer was initialized regardless, but it's useless with the "wait" instruction. So long story short: I need either the on-chip 32kHz timer OR the r4k timer if the 32kHz one is unusable, but not both, and r4k timer is useless when au1k_idle is in use. The current in-kernel Alchemy boards all work with the 32kHz timer, so I'm not against removing R4K_LIB symbols. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-12-13MIPS: Remove usage of CSRC_R4K_LIB config option.Steven J. Hill
Manuel Lauss <manuel.lauss@gmail.com> writes: I introduced it as a fallback because early revisions of Alchemy hardware we shipped had a non-functional 32kHz timer and had to rely on the r4k timer instead. Previously the r4k timer was initialized regardless, but it's useless with the "wait" instruction. So long story short: I need either the on-chip 32kHz timer OR the r4k timer if the 32kHz one is unusable, but not both, and r4k timer is useless when au1k_idle is in use. The current in-kernel Alchemy boards all work with the 32kHz timer, so I'm not against removing R4K_LIB symbols. Signed-off-by: Steven J. Hill <sjhill@mips.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-12-13MIPS: AR7: use part_probe_types to specificy the partition parser to useFlorian Fainelli
This patch changes the physmap-flash platform data on AR7 to pass the correct partition parser: ar7part to used by the "physmap-flash" mapping driver so we get the partitions probed correctly. Signed-off-by: Florian Fainelli <florian@openwrt.org> Cc: blogic@openwrt.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/4654/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-12-13MIPS: Lantiq: Fix typo in "endianness" in dma.cMasanari Iida
Correct spelling typo ENDIANESS to ENDIANNESS in arc/mips/lantiq/xway/dma.c Signed-off-by: Masanari Iida <standby24x7@gmail.com> Cc: trivial@kernel.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/4613/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-12-13arch/tile: provide PT_FLAGS_COMPAT value in pt_regsChris Metcalf
This flag is set for ptrace GETREGS or PEEKUSER for processes that are COMPAT, i.e. 32-bit. This allows things like strace to easily discover what personality to use, for example. Acked-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2012-12-13MIPS: Kconfig: Rename several firmware related config symbols.Ralf Baechle
With the upcoming merge of the ARC architecture there is a small likelyhood of conflicting use for the CONFIG_ARC config symbol. Rename it to CONFIG_FW_ARC. Also rename CONFIG_ARC32 to CONFIG_FW_ARC32, CONFIG_ARC64 to CONFIG_FW_ARC64. For consistence also rename CONFIG_SNIPROM to CONFIG_FW_SNIPROM and CONFIG_CFE to CONFIG_FW_CFE. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-12-13MIPS: Octeon: Add kexec and kdump supportRalf Baechle
[ralf@linux-mips.org: Original patch by Maxim Uvarov <muvarov@gmail.com> with plenty of further shining, polishing, debugging and testing by me.] Signed-off-by: Maxim Uvarov <muvarov@gmail.com> Cc: linux-mips@linux-mips.org Cc: kexec@lists.infradead.org Cc: horms@verge.net.au Patchwork: https://patchwork.linux-mips.org/patch/1026/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-12-13MIPS: kdump: Add supportRalf Baechle
[ralf@linux-mips.org: Original patch by Maxim Uvarov <muvarov@gmail.com> with plenty of further shining, polishing, debugging and testing by me.] Signed-off-by: Maxim Uvarov <muvarov@gmail.com> Cc: linux-mips@linux-mips.org Cc: kexec@lists.infradead.org Cc: horms@verge.net.au Patchwork: https://patchwork.linux-mips.org/patch/1025/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-12-13nfs: Remove unused list nfs4_clientid_listYanchuan Nian
This list was designed to store struct nfs4_client in the client side. But nfs4_client was obsolete and has been removed from the source code. So remove the unused list. Signed-off-by: Yanchuan Nian <ycnian@gmail.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-13nfs: Remove duplicate function declaration in internal.hYanchuan Nian
Remove duplicate function declaration in internal.h Signed-off-by: Yanchuan Nian <ycnian@gmail.com> [Trond: Added nfs_pageio_init_read, which suffered from the same problem] Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-13quota: Use the pre-processor to compile out quotactl_cmd_write when ↵Lee Jones
!CONFIG_BLOCK quotactl_cmd_write() is only ever invoked when BLOCK is configured. When !CONFIG_BLOCK, the build warning below is displayed. Let's fix that. fs/quota/quota.c:311:12: warning: ‘quotactl_cmd_write’ defined but not used [-Wunused-function] Cc: Jan Kara <jack@suse.cz> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Jan Kara <jack@suse.cz>
2012-12-13ext3: drop if around WARN_ONJulia Lawall
Just use WARN_ON rather than an if containing only WARN_ON(1). A simplified version of the semantic patch that makes this transformation is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression e; @@ - if (e) WARN_ON(1); + WARN_ON(e); // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Jan Kara <jack@suse.cz>
2012-12-13ext3: get rid of the duplicate code on ext3_fill_superZhao Hongjiang
Setting s_mount_opt to 0 is unnecessary because we use kzalloc() for sb allocation. s_resuid and s_resgid are set again few lines below based on values in on disk superblock. Signed-off-by: Zhao Hongjiang <zhaohongjiang@huawei.com> Signed-off-by: Jan Kara <jack@suse.cz>
2012-12-13udf: remove un-needed variable from inode_getblkNamjae Jeon
The variable last_block is not needed. Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Ashish Sangwan <a.sangwan@samsung.com> Signed-off-by: Jan Kara <jack@suse.cz>
2012-12-13udf: don't increment lenExtents while writing to a holeNamjae Jeon
Incrementing lenExtents even while writing to a hole is bad for performance as calls to udf_discard_prealloc and udf_truncate_tail_extent would not return from start if isize != lenExtents Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Ashish Sangwan <a.sangwan@samsung.com> Signed-off-by: Jan Kara <jack@suse.cz>
2012-12-13udf: fix memory leak while allocating blocks during writeNamjae Jeon
Need to brelse the buffer_head stored in cur_epos and next_epos. Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Ashish Sangwan <a.sangwan@samsung.com> Signed-off-by: Jan Kara <jack@suse.cz>
2012-12-13libceph: Unlock unprocessed pages in start_read() error pathDavid Zafman
Function start_read() can get an error before processing all pages. It must not only release the remaining pages, but unlock them too. This fixes http://tracker.newdream.net/issues/3370 Signed-off-by: David Zafman <david.zafman@inktank.com> Reviewed-by: Alex Elder <elder@inktank.com>
2012-12-13ceph: call handle_cap_grant() for cap import messageYan, Zheng
If client sends cap message that requests new max size during exporting caps, the exporting MDS will drop the message quietly. So the client may wait for the reply that updates the max size forever. call handle_cap_grant() for cap import message can avoid this issue. Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> Signed-off-by: Sage Weil <sage@inktank.com>
2012-12-13ceph: Fix __ceph_do_pending_vmtruncateYan, Zheng
we should set i_truncate_pending to 0 after page cache is truncated to i_truncate_size Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> Signed-off-by: Sage Weil <sage@inktank.com>
2012-12-13ceph: Don't add dirty inode to dirty list if caps is in migrationYan, Zheng
Add dirty inode to cap_dirty_migrating list instead, this can avoid ceph_flush_dirty_caps() entering infinite loop. Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> Signed-off-by: Sage Weil <sage@inktank.com>
2012-12-13ceph: Fix infinite loop in __wake_requestsYan, Zheng
__wake_requests() will enter infinite loop if we use it to wake requests in the session->s_waiting list. __wake_requests() deletes requests from the list and __do_request() adds requests back to the list. Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> Signed-off-by: Sage Weil <sage@inktank.com>
2012-12-13ceph: Don't update i_max_size when handling non-auth capYan, Zheng
The cap from non-auth mds doesn't have a meaningful max_size value. Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> Signed-off-by: Sage Weil <sage@inktank.com>
2012-12-13bdi_register: add __printf verification, fix arg mismatchJoe Perches
__printf is useful to verify format and arguments. Signed-off-by: Joe Perches <joe@perches.com> Reviewed-by: Alex Elder <elder@inktank.com>
2012-12-13libceph: remove 'osdtimeout' optionSage Weil
This would reset a connection with any OSD that had an outstanding request that was taking more than N seconds. The idea was that if the OSD was buggy, the client could compensate by resending the request. In reality, this only served to hide server bugs, and we haven't actually seen such a bug in quite a while. Moreover, the userspace client code never did this. More importantly, often the request is taking a long time because the OSD is trying to recover, or overloaded, and killing the connection and retrying would only make the situation worse by giving the OSD more work to do. Signed-off-by: Sage Weil <sage@inktank.com> Reviewed-by: Alex Elder <elder@inktank.com>
2012-12-13ceph: fix dentry reference leak in ceph_encode_fh().Cyril Roelandt
dput() was not called in the error path. Signed-off-by: Cyril Roelandt <tipecaml@gmail.com> Reviewed-by: Alex Elder <elder@inktank.com>
2012-12-13drm/exynos/iommu: fix return value check in drm_create_iommu_mapping()Wei Yongjun
In case of error, function arm_iommu_create_mapping() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2012-12-13drm/exynos: remove unused vaddr memberYoungJun Cho
This patch removes vaddr member from exynos_drm_overlay structure and also relevant codes for code cleanup. Signed-off-by: YoungJun Cho <yj44.cho@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2012-12-13drm/exynos: use DMA_ATTR_NO_KERNEL_MAPPING attributeInki Dae
Changelog v3: just code cleanup. Changelog v2: fix argument to dma_mmap_attr function. - use pages instead of kvaddr because kvaddr is 0 with DMA_ATTR_NO_KERNEL_MAPPING. Changelog v1: When gem allocation is requested, kernel space mapping isn't needed. But if need, such as console framebuffer, the physical pages would be mapped with kernel space though vmap function. Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2012-12-13drm/exynos: add exception codes to exynos_drm_fbdev_create()Inki Dae
This patch releases allocated resources correctly. Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2012-12-13drm/exynos: clear windows in fimd dpms offPrathyush K
Changelog v2: Added details of original patch in chromium kernel Changelog v1: When fimd is turned off, we disable the clocks which will stop the dma. Now if we remove the current framebuffer, we cannot disable the overlay but the current framebuffer will still be freed. When fimd resumes, the dma will continue from where it left off and will throw a PAGE FAULT since the memory was freed. This patch fixes the above problem by disabling the fimd windows before disabling the fimd clocks. It also keeps track of which windows were currently active by setting the 'resume' flag. When fimd resumes, the window with a resume flag set is enabled again. Now if a current fb is removed when fimd is off, fimd_win_disable will set the 'resume' flag of that window to zero and return. So when fimd resumes, that window will not be resumed. This patch is based on the following two patches: http://git.chromium.org/gitweb/?p=chromiumos/third_party/kernel.git;a=commitdiff;h=341e973c967304976a762211b6465b0074de62ef http://git.chromium.org/gitweb/?p=chromiumos/third_party/kernel.git;a=commitdiff;h=cfa22e49b7408547c73532c4bb03de47cc034a05 These two patches are rebased onto the current kernel with additional changes like removing 'fimd_win_commit' call from the resume function since this is taken care by encoder dpms, and the modification of resume flag in win_disable. Signed-off-by: Prathyush K <prathyush.k@samsung.com> Signed-off-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Stephane Marchesin <marcheu@chromium.org> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2012-12-13drm/exynos: clear windows in mixer dpms offPrathyush K
When mixer is turned off, we disable the clocks which will stop the dma. Now if we remove the current framebuffer, we cannot disable the overlay but the current framebuffer will still be freed. When mixer resumes, the dma will continue from where it left off and will throw a PAGE FAULT since the memory was freed. This patch fixes the above problem by disabling the mixer windows before disabling the mixer clocks. It also keeps track of which windows were currently active by setting the 'resume' flag. When mixer resumes, the window with a resume flag set is enabled again. Now if a current fb is removed when mixer is off, mixer_win_disable will set the 'resume' flag of that window to zero and return. So when mixer resumes, that window will not be resumed. Signed-off-by: Prathyush K <prathyush.k@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2012-12-13drm/exynos: modify wait_for_vblank of fimdPrathyush K
It is more optimium to use wait queues while waiting for vsync so that the current task is put to sleep. This way, the task wont hog the CPU while waiting. We use wait_event_timeout and not an interruptible function since we dont want the function to exit when a signal is pending (e.g. drm release). This patch modifies the wait for vblank function of fimd. Signed-off-by: Prathyush K <prathyush.k@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2012-12-13drm/exynos: modify wait_for_vblank of mixerPrathyush K
It is more optimium to use wait queues while waiting for vsync so that the current task is put to sleep. This way, the task wont hog the CPU while waiting. We use wait_event_timeout and not an interruptible function since we dont want the function to exit when a signal is pending (e.g. drm release). This patch modifies the wait for vblank function of mixer. Signed-off-by: Prathyush K <prathyush.k@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2012-12-13drm/exynos: move fimd wait_for_vblank to manager_opsPrathyush K
The wait for vblank callback is moved from overlay_ops to manager_ops for fimd. Signed-off-by: Prathyush K <prathyush.k@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2012-12-13drm/exynos: move hdmi's wait_for_vblank to manager_opsPrathyush K
The wait_for_vblank callback of hdmi and mixer is now moved from overlay_ops to manager_ops. Signed-off-by: Prathyush K <prathyush.k@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2012-12-13drm/exynos: make wait_for_vblank a manager opPrathyush K
Changelog v2: remove unnecessay wait_for_vblank call. - with this patch, wait_for_vblank callback is moved from overlay ops to manager ops so it should be removed and it doesn't need to wait vblank signal at plane disable. Changelog v1: The wait_for_vblank callback is moved from overlay ops to manager ops of exynos drm driver. Also, the check for DPMS OFF of encoder is removed before calling wait_for_vblank. Signed-off-by: Prathyush K <prathyush.k@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2012-12-13drm/exynos: add dmabuf attach/detach callbacks.Inki Dae
With this patch, When dma_buf_unmap_attachment is called, the pages of sgt aren't unmapped from iommu table. Instead, when dma_buf_detach is called, that would be done. And also removes exynos_get_sgt function used to get clone sgt and uses attachment's sgt instead. This patch would resolve performance deterioration issue when v4l2-based driver is using the buffer imported from gem. This change is derived from videobuf2-dma-contig.c Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
generated by cgit (git 2.34.1) at 2025-09-14 07:23:58 +0000