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2015-03-21Merge branches 'pm-cpuidle', 'powercap', 'irq-pm' and 'acpi-resources'Rafael J. Wysocki
* pm-cpuidle: cpuidle: mvebu: Update cpuidle thresholds for Armada XP SOCs cpuidle: mvebu: Fix the CPU PM notifier usage * powercap: powercap / RAPL: handle domains with different energy units * irq-pm: rtc: at91rm9200: double locking bug in at91_rtc_interrupt() * acpi-resources: Revert "x86/PCI: Refine the way to release PCI IRQ resources"
2015-03-21md: fix problems with freeing private data after ->run failure.NeilBrown
If ->run() fails, it can either free the data structures it allocated, or leave that task to ->free() which will be called on failures. However: md.c calls ->free() even if ->private_data is NULL, which causes problems in some personalities. raid0.c frees the data, but doesn't clear ->private_data, which will become a problem when we fix md.c So better fix both these issues at once. Reported-by: Richard W.M. Jones <rjones@redhat.com> Fixes: 5aa61f427e4979be733e4847b9199ff9cc48a47e URL: https://bugzilla.kernel.org/show_bug.cgi?id=94381 Signed-off-by: NeilBrown <neilb@suse.de>
2015-03-20net: validate the range we feed to iov_iter_init() in sys_sendto/sys_recvfromAl Viro
Cc: stable@vger.kernel.org # v3.19 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20net: compat: Update get_compat_msghdr() to match copy_msghdr_from_user() ↵Catalin Marinas
behaviour Commit db31c55a6fb2 (net: clamp ->msg_namelen instead of returning an error) introduced the clamping of msg_namelen when the unsigned value was larger than sizeof(struct sockaddr_storage). This caused a msg_namelen of -1 to be valid. The native code was subsequently fixed by commit dbb490b96584 (net: socket: error on a negative msg_namelen). In addition, the native code sets msg_namelen to 0 when msg_name is NULL. This was done in commit (6a2a2b3ae075 net:socket: set msg_namelen to 0 if msg_name is passed as NULL in msghdr struct from userland) and subsequently updated by 08adb7dabd48 (fold verify_iovec() into copy_msghdr_from_user()). This patch brings the get_compat_msghdr() in line with copy_msghdr_from_user(). Fixes: db31c55a6fb2 (net: clamp ->msg_namelen instead of returning an error) Cc: David S. Miller <davem@davemloft.net> Cc: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20NFSD: Put exports after nfsd4_layout_verify failKinglong Mee
Fix commit 9cf514ccfa (nfsd: implement pNFS operations). Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-03-20arm64: Honor __GFP_ZERO in dma allocationsSuzuki K. Poulose
Current implementation doesn't zero out the pages allocated. Honor the __GFP_ZERO flag and zero out if set. Cc: <stable@vger.kernel.org> # v3.14+ Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Suzuki K. Poulose <suzuki.poulose@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2015-03-20Merge branch 'be2net'David S. Miller
Sathya Perla says: ==================== be2net: patch set Hi David, this patch set includes 3 bug fixes to the be2net driver. Patch 1 fixes a vlan isolation issue with VFs. When a VF is placed in promiscous mode, it could receive packets belonging to any vlan, as the PF driver grants vlan promisc capability to VFs. The PF driver now disables the vlan promisc capability for VFs to fix this problem. Patch 2 fixes the call to MODIFY_EQ_DELAY FW cmd to not include more than 8 EQs per cmd. The FW is not capable of handling more than 8 EQs per cmd. Patch 3 fixes an EEH error detection issue. On Power platforms, when an EEH error occurs, the slot disconnect state is more reliably detected via an MMIO read compared to a config read. So, the error register reads that occur every second are now done via MMIO. Pls apply this patch set to the "net" tree. Thanks! ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20be2net: use PCI MMIO read instead of config read for errorsSuresh Reddy
When an EEH error occurs, the device/slot is disconnected. This condition is more reliably detected (i.e., returns all ones) with an MMIO read rather than a config read -- especially on power platforms. Hence, this patch fixes EEH error detection by replacing config reads with MMIO reads for reading the error registers. The error registers in Skyhawk-R/BE2/BE3 are accessible both via the config space and the PCICFG (BAR0) memory space. Reported-by: Gavin Shan <gwshan@linux.vnet.ibm.com> Signed-off-by: Suresh Reddy <Suresh.Reddy@emulex.com> Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20be2net: restrict MODIFY_EQ_DELAY cmd to a max of 8 EQsSuresh Reddy
Issuing this cmd for more than 8 EQs does not have the intended effect even on BEx and Skyhawk-R. This patch fixes this by issuing this cmd for upto 8 EQs at a time. Signed-off-by: Suresh Reddy <Suresh.Reddy@emulex.com> Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20be2net: Prevent VFs from enabling VLAN promiscuous modeVasundhara Volam
Currently, a PF does not restrict its VF interface from enabling vlan promiscuous mode. This breaks vlan isolation when a vlan (transparent tagging) is configured on a VF. This patch fixes this problem by disabling the vlan promisc capability for VFs. Reported-by: Yoann Juet <veilletechno-irts@univ-nantes.fr> Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com> Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20tcp: fix tcp fin memory accountingJosh Hunt
tcp_send_fin() does not account for the memory it allocates properly, so sk_forward_alloc can be negative in cases where we've sent a FIN: ss example output (ss -amn | grep -B1 f4294): tcp FIN-WAIT-1 0 1 192.168.0.1:45520 192.0.2.1:8080 skmem:(r0,rb87380,t0,tb87380,f4294966016,w1280,o0,bl0) Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20arm64: efi: don't restore TTBR0 if active_mm points at init_mmWill Deacon
init_mm isn't a normal mm: it has swapper_pg_dir as its pgd (which contains kernel mappings) and is used as the active_mm for the idle thread. When restoring the pgd after an EFI call, we write current->active_mm into TTBR0. If the current task is actually the idle thread (e.g. when initialising the EFI RTC before entering userspace), then the TLB can erroneously populate itself with junk global entries as a result of speculative table walks. When we do eventually return to userspace, the task can end up hitting these junk mappings leading to lockups, corruption or crashes. This patch fixes the problem in the same way as the CPU suspend code by ensuring that we never switch to the init_mm in efi_set_pgd and instead point TTBR0 at the zero page. A check is also added to cpu_switch_mm to BUG if we get passed swapper_pg_dir. Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Fixes: f3cdfd239da5 ("arm64/efi: move SetVirtualAddressMap() to UEFI stub") Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2015-03-20ipv6: fix backtracking for throw routesSteven Barth
for throw routes to trigger evaluation of other policy rules EAGAIN needs to be propagated up to fib_rules_lookup similar to how its done for IPv4 A simple testcase for verification is: ip -6 rule add lookup 33333 priority 33333 ip -6 route add throw 2001:db8::1 ip -6 route add 2001:db8::1 via fe80::1 dev wlan0 table 33333 ip route get 2001:db8::1 Signed-off-by: Steven Barth <cyrus@openwrt.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20net: ethernet: pcnet32: Setup the SRAM and NOUFLO on Am79C97{3, 5}Markos Chandras
On a MIPS Malta board, tons of fifo underflow errors have been observed when using u-boot as bootloader instead of YAMON. The reason for that is that YAMON used to set the pcnet device to SRAM mode but u-boot does not. As a result, the default Tx threshold (64 bytes) is now too small to keep the fifo relatively used and it can result to Tx fifo underflow errors. As a result of which, it's best to setup the SRAM on supported controllers so we can always use the NOUFLO bit. Cc: <netdev@vger.kernel.org> Cc: <stable@vger.kernel.org> Cc: <linux-kernel@vger.kernel.org> Cc: Don Fry <pcnet32@frontier.com> Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20ipv6: call ipv6_proxy_select_ident instead of ipv6_select_ident in ↵Sabrina Dubroca
udp6_ufo_fragment Matt Grant reported frequent crashes in ipv6_select_ident when udp6_ufo_fragment is called from openvswitch on a skb that doesn't have a dst_entry set. ipv6_proxy_select_ident generates the frag_id without using the dst associated with the skb. This approach was suggested by Vladislav Yasevich. Fixes: 0508c07f5e0c ("ipv6: Select fragment id during UFO segmentation if not set.") Cc: Vladislav Yasevich <vyasevic@redhat.com> Reported-by: Matt Grant <matt@mattgrant.net.nz> Tested-by: Matt Grant <matt@mattgrant.net.nz> Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Acked-by: Vladislav Yasevich <vyasevic@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20Input: add MT_TOOL_PALMCharlie Mooney
Currently there are only two "tools" that can be specified by a multi-touch driver: MT_TOOL_FINGER and MT_TOOL_PEN. In working with Elan (The touch vendor) and discussing their next-gen devices it seems that it will be useful to have more tools so that their devices can give the upper layers of the stack hints as to what is touching the sensor. In particular they have new experimental firmware that can better differentiate between palms vs fingertips and would like to plumb a patch so that we can use their hints in higher-level gesture soft- ware. The firmware on the device can reasonably do a better job of palm detection because it has access to all of the raw sensor readings as opposed to just the width/pressure/etc that are exposed by the driver. As such, the firmware can characterize what a palm looks like in much finer-grained detail and this change would allow such a device to share its findings with the kernel. Signed-off-by: Charlie Mooney <charliemooney@chromium.org> Acked-by: Peter Hutterer <peter.hutterer@who-t.net> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-20NFSD: Error out when register_shrinker() failKinglong Mee
If register_shrinker() failed, nfsd will cause a NULL pointer access as, [ 9250.875465] nfsd: last server has exited, flushing export cache [ 9251.427270] BUG: unable to handle kernel NULL pointer dereference at (null) [ 9251.427393] IP: [<ffffffff8136fc29>] __list_del_entry+0x29/0xd0 [ 9251.427579] PGD 13e4d067 PUD 13e4c067 PMD 0 [ 9251.427633] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC [ 9251.427706] Modules linked in: ip6t_rpfilter ip6t_REJECT bnep bluetooth xt_conntrack cfg80211 rfkill ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw btrfs xfs microcode ppdev serio_raw pcspkr xor libcrc32c raid6_pq e1000 parport_pc parport i2c_piix4 i2c_core nfsd(OE-) auth_rpcgss nfs_acl lockd sunrpc(E) ata_generic pata_acpi [ 9251.428240] CPU: 0 PID: 1557 Comm: rmmod Tainted: G OE 3.16.0-rc2+ #22 [ 9251.428366] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 07/31/2013 [ 9251.428496] task: ffff880000849540 ti: ffff8800136f4000 task.ti: ffff8800136f4000 [ 9251.428593] RIP: 0010:[<ffffffff8136fc29>] [<ffffffff8136fc29>] __list_del_entry+0x29/0xd0 [ 9251.428696] RSP: 0018:ffff8800136f7ea0 EFLAGS: 00010207 [ 9251.428751] RAX: 0000000000000000 RBX: ffffffffa0116d48 RCX: dead000000200200 [ 9251.428814] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa0116d48 [ 9251.428876] RBP: ffff8800136f7ea0 R08: ffff8800136f4000 R09: 0000000000000001 [ 9251.428939] R10: 8080808080808080 R11: 0000000000000000 R12: ffffffffa011a5a0 [ 9251.429002] R13: 0000000000000800 R14: 0000000000000000 R15: 00000000018ac090 [ 9251.429064] FS: 00007fb9acef0740(0000) GS:ffff88003fa00000(0000) knlGS:0000000000000000 [ 9251.429164] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 9251.429221] CR2: 0000000000000000 CR3: 0000000031a17000 CR4: 00000000001407f0 [ 9251.429306] Stack: [ 9251.429410] ffff8800136f7eb8 ffffffff8136fcdd ffffffffa0116d20 ffff8800136f7ed0 [ 9251.429511] ffffffff8118a0f2 0000000000000000 ffff8800136f7ee0 ffffffffa00eb765 [ 9251.429610] ffff8800136f7ef0 ffffffffa010e93c ffff8800136f7f78 ffffffff81104ac2 [ 9251.429709] Call Trace: [ 9251.429755] [<ffffffff8136fcdd>] list_del+0xd/0x30 [ 9251.429896] [<ffffffff8118a0f2>] unregister_shrinker+0x22/0x40 [ 9251.430037] [<ffffffffa00eb765>] nfsd_reply_cache_shutdown+0x15/0x90 [nfsd] [ 9251.430106] [<ffffffffa010e93c>] exit_nfsd+0x9/0x6cd [nfsd] [ 9251.430192] [<ffffffff81104ac2>] SyS_delete_module+0x162/0x200 [ 9251.430280] [<ffffffff81013b69>] ? do_notify_resume+0x59/0x90 [ 9251.430395] [<ffffffff816f2369>] system_call_fastpath+0x16/0x1b [ 9251.430457] Code: 00 00 55 48 8b 17 48 b9 00 01 10 00 00 00 ad de 48 8b 47 08 48 89 e5 48 39 ca 74 29 48 b9 00 02 20 00 00 00 ad de 48 39 c8 74 7a <4c> 8b 00 4c 39 c7 75 53 4c 8b 42 08 4c 39 c7 75 2b 48 89 42 08 [ 9251.430691] RIP [<ffffffff8136fc29>] __list_del_entry+0x29/0xd0 [ 9251.430755] RSP <ffff8800136f7ea0> [ 9251.430805] CR2: 0000000000000000 [ 9251.431033] ---[ end trace 080f3050d082b4ea ]--- Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-03-20NFSD: Take care the return value from nfsd4_decode_stateidKinglong Mee
Return status after nfsd4_decode_stateid failed. Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-03-20NFSD: Check layout type when returning client layoutsKinglong Mee
According to RFC5661: " When lr_returntype is LAYOUTRETURN4_FSID, the current filehandle is used to identify the file system and all layouts matching the client ID, the fsid of the file system, lora_layout_type, and lora_iomode are returned. When lr_returntype is LAYOUTRETURN4_ALL, all layouts matching the client ID, lora_layout_type, and lora_iomode are returned and the current filehandle is not used. " When returning client layouts, always check layout type. Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-03-20NFSD: restore trace event lost in mismergeKinglong Mee
31ef83dc05 "nfsd: add trace events" had a typo that dropped a trace event and replaced it by an incorrect recursive call to nfsd4_cb_layout_fail. 133d558216d9 "Subject: nfsd: don't recursively call nfsd4_cb_layout_fail" fixed the crash, this restores the tracepoint. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-03-20Fix bug in blk_rq_merge_okWenbo Wang
Use the right array index to reference the last element of rq->biotail->bi_io_vec[] Signed-off-by: Wenbo Wang <wenbo.wang@memblaze.com> Reviewed-by: Chong Yuan <chong.yuan@memblaze.com> Fixes: 66cb45aa41315 ("block: add support for limiting gaps in SG lists") Cc: stable@kernel.org Signed-off-by: Jens Axboe <axboe@fb.com>
2015-03-20drm/i915: Do not leak objects after capturing error stateMichel Thierry
While running kmemleak chasing a different memleak, I saw that the capture_error_state function was leaking some objects, for example: unreferenced object 0xffff8800a9b72148 (size 8192): comm "kworker/u16:0", pid 1499, jiffies 4295201243 (age 990.096s) hex dump (first 32 bytes): 00 00 04 00 00 00 00 00 5d f4 ff ff 00 00 00 00 ........]....... 00 30 b0 01 00 00 00 00 37 00 00 00 00 00 00 00 .0......7....... backtrace: [<ffffffff811e5ae4>] create_object+0x104/0x2c0 [<ffffffff8178f50a>] kmemleak_alloc+0x7a/0xc0 [<ffffffff811cde4b>] __kmalloc+0xeb/0x220 [<ffffffffa038f1d9>] kcalloc.constprop.12+0x2d/0x2f [i915] [<ffffffffa0316064>] i915_capture_error_state+0x3f4/0x1660 [i915] [<ffffffffa03207df>] i915_handle_error+0x7f/0x660 [i915] [<ffffffffa03210f7>] i915_hangcheck_elapsed+0x2e7/0x470 [i915] [<ffffffff8108d574>] process_one_work+0x144/0x490 [<ffffffff8108dfbd>] worker_thread+0x11d/0x530 [<ffffffff81094079>] kthread+0xc9/0xe0 [<ffffffff817a2398>] ret_from_fork+0x58/0x90 [<ffffffffffffffff>] 0xffffffffffffffff The following objects are allocated in i915_gem_capture_buffers, but not released in i915_error_state_free: - error->active_bo_count - error->pinned_bo - error->pinned_bo_count - error->active_bo[vm_count] (allocated in i915_gem_capture_vm). The leaks were introduced by commit 95f5301dd880da2dea2c9a9c29750064536d426a Author: Ben Widawsky <ben@bwidawsk.net> Date: Wed Jul 31 17:00:15 2013 -0700 drm/i915: Update error capture for VMs v2: Reuse iterator and add culprit commit details (Chris) Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Michel Thierry <michel.thierry@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-03-20Revert "x86/PCI: Refine the way to release PCI IRQ resources"Rafael J. Wysocki
Commit b4b55cda5874 (Refine the way to release PCI IRQ resources) introduced a regression in the PCI IRQ resource management by causing the IRQ resource of a device, established when pci_enabled_device() is called on a fully disabled device, to be released when the driver is unbound from the device, regardless of the enable_cnt. This leads to the situation that an ill-behaved driver can now make a device unusable to subsequent drivers by an imbalance in their use of pci_enable/disable_device(). That is a serious problem for secondary drivers like vfio-pci, which are innocent of the transgressions of the previous driver. Since the solution of this problem is not immediate and requires further discussion, revert commit b4b55cda5874 and the issue it was supposed to address (a bug related to xen-pciback) will be taken care of in a different way going forward. Reported-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-03-20netfilter: xt_TPROXY: fix invflags check in tproxy_tg6_check()Pablo Neira Ayuso
We have to check for IP6T_INV_PROTO in invflags, instead of flags. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Acked-by: Balazs Scheidler <bazsi@balabit.hu>
2015-03-20drm: omapdrm: Reorder CRTC functionsLaurent Pinchart
The next commit will need functions to be reordered. Do it separately to help review. This only moves functions without any change to the code. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2015-03-20drm: omapdrm: Planes are already disabled when destroyedLaurent Pinchart
Planes are destroyed after framebuffers, which has the side effect of disabling all planes. There is thus no need to disable planes explicitly when destroying them. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2015-03-20drm: omapdrm: Pass integer source coordinates to omap_plane_mode_set()Laurent Pinchart
The function will convert the Q16 source coordinates to integers, avoid converting integers to Q16 first and perform the opposite conversion. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2015-03-20drm: omapdrm: Prefix all plane functions with omap_plane_Laurent Pinchart
This matches the rest of the file and clarifies the functions' purpose. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2015-03-20drm: omapdrm: Avoid function forward declaration in omap_crtc.cLaurent Pinchart
Move the set_enabled function to avoid the forward declaration. While at it prefix it with omap_crtc_ like most other functions in the file, and fix the comment stating in which contexts the function is called. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2015-03-20drm: omapdrm: Remove omap_crtc->full_update fieldLaurent Pinchart
The full_update field is always set to true before calling omap_crtc_appy(), resulting in its value always being true in the single location where it is tested, in omap_crtc_pre_apply(). Remove it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2015-03-20drm: omapdrm: Remove manual update display supportLaurent Pinchart
All the manual update display code implements eventually ends up to just calls to omap_connector_flush(), currently implemented as an empty TODO stub. Remove it, the code can always be revived and implemented later if interest in manual update displays becomes a reality. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2015-03-20drm: omapdrm: Fix race condition between GO and vblank IRQLaurent Pinchart
The vblank interrupt is used by the driver as a completion signal when applying new settings. A race condition exist between enabling the vblank interrupt and applying new settings to the hardware by setting the GO bit. If a vblank interrupt occurs in-between, the driver will incorrectly consider the new settings to be applied. Fix this by enabling the interrupt after setting the GO bit. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2015-03-20drm: omapdrm: Reset the zorder property when disabling a planeLaurent Pinchart
Whether to reset plane properties at disable time isn't well-defined in DRM, but resetting only part of them is probably as bad as it can get. Make the behaviour coherent by resetting the zorder property in addition to the rotation property. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2015-03-20drm: omapdrm: Rename omap_plane_dpms() to omap_plane_set_enable()Laurent Pinchart
The planes don't care about DPMS states, don't propagate it unnecessarily to the plane functions. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2015-03-20drm: omapdrm: Switch to the universal plane APILaurent Pinchart
Remove the CRTC private planes by switching to the universal plane API. This results in a merge of the CRTC private plane created by the driver (omap_crtc->plane) and the CRTC primary plane created by the DRM core (crtc->primary). Reference counting of the framebuffers in the update plane operation is thus simplified as no reference needs to be stored in the private plane anymore. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2015-03-20drm: omapdrm: Remove unused variablesLaurent Pinchart
The ilace variable is unused and the replication variable is assigned to false and just passed to a function. Remove them. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2015-03-20drm: omapdrm: Refactor CRTC creation codeLaurent Pinchart
Create a omap_modeset_create_crtc() function to avoid duplicating plane and CRTC creation code. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2015-03-20drm: omapdrm: Fix indentation of structure and array initializersLaurent Pinchart
Indenting by one tab is enough. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2015-03-20drm/i915: Fix SKL sprite disable double buffer register updateVille Syrjälä
Write the PLANE_SURF register instead of PLANE_CTL to arm the double buffer regisrter update. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-03-20drm/i915: Eliminate plane control register RMW from sprite codeVille Syrjälä
Replace the RMW access with explicit initialization of the entire plane control register, as was done for primary planes in: commit f45651bae2ee73ae551699d481f76aa6ad92138f Author: Ville Syrjälä <ville.syrjala@linux.intel.com> Date: Fri Aug 8 21:51:10 2014 +0300 drm/i915: Eliminate rmw from .update_primary_plane() The automagic primary plane disable is still doing RMWs, but that will require more work to untangle, so leave it alone for now. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-03-20drm/i915: Eliminate the RMW sprite colorkey managementVille Syrjälä
Store the colorkey in intel_plane and kill off all the RMW stuff handling it. This is just an intermediate step and eventually the colorkey needs to be converted into some properties. v2: Actually update the hardware state in the set_colorkey ioctl (Daniel) Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-03-20drm/i915: Move vblank wait determination to 'check' phaseMatt Roper
Determining whether we'll need to wait for vblanks is something we should determine during the atomic 'check' phase, not the 'commit' phase. Note that we only set these bits in the branch of 'check' where intel_crtc->active is true so that we don't try to wait on a disabled CRTC. The whole 'wait for vblank after update' flag should go away in the future, once we start handling watermarks in a proper atomic manner. This regression has been introduced in commit 2fdd7def16dd7580f297827930126c16b152ec11 Author: Matt Roper <matthew.d.roper@intel.com> Date: Wed Mar 4 10:49:04 2015 -0800 drm/i915: Don't clobber plane state on internal disables Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Root-cause-analysis-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89550 Testcase: igt/pm_rpm/legacy-planes Testcase: igt/pm_rpm/legacy-planes-dpms Testcase: igt/pm_rpm/universal-planes Testcase: igt/pm_rpm/universal-planes-dpms Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-03-20drm/i915/chv: use vlv_PLL_is_optimal in chv_find_best_dpllImre Deak
Prepare chv_find_best_dpll to be used for BXT too, where we want to consider the error between target and calculated frequency too when choosing a better PLL configuration. No functional change. Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-03-20drm/i915: check for div-by-zero in vlv_PLL_is_optimalImre Deak
Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-03-20drm/i915: factor out vlv_PLL_is_optimalImre Deak
Factor out the logic to decide whether the newly calculated dividers are better than the best found so far. Do this for clarity and to prepare for the upcoming BXT helper needing the same. No functional change. Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-03-20drm/i915: Kill intel_plane->objVille Syrjälä
intel_plane->obj is not used anymore so kill it. Also don't pass both the fb and obj to the sprite .update_plane() hook, as just passing the fb is enough. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-03-20drm/i915: Initialize all contextsBen Widawsky
The problem is we're going to switch to a new context, which could be the default context. The plan was to use restore inhibit, which would be fine, except if we are using dynamic page tables (which we will). If we use dynamic page tables and we don't load new page tables, the previous page tables might go away, and future operations will fault. CTXA runs. switch to default, restore inhibit CTXA dies and has its address space taken away. Run CTXB, tries to save using the context A's address space - this fails. The general solution is to make sure every context has it's own state, and its own address space. For cases when we must restore inhibit, first thing we do is load a valid address space. I thought this would be enough, but apparently there are references within the context itself which will refer to the old address space - therefore, we also must reinitialize. v2: to->ppgtt is only valid in full ppgtt. v3: Rebased. v4: Make post PDP update clearer. Signed-off-by: Ben Widawsky <ben@bwidawsk.net> Signed-off-by: Michel Thierry <michel.thierry@intel.com> (v2+) Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-03-20drm/i915: Track page table reload needBen Widawsky
This patch was formerly known as, "Force pd restore when PDEs change, gen6-7." I had to change the name because it is needed for GEN8 too. The real issue this is trying to solve is when a new object is mapped into the current address space. The GPU does not snoop the new mapping so we must do the gen specific action to reload the page tables. GEN8 and GEN7 do differ in the way they load page tables for the RCS. GEN8 does so with the context restore, while GEN7 requires the proper load commands in the command streamer. Non-render is similar for both. Caveat for GEN7 The docs say you cannot change the PDEs of a currently running context. We never map new PDEs of a running context, and expect them to be present - so I think this is okay. (We can unmap, but this should also be okay since we only unmap unreferenced objects that the GPU shouldn't be tryingto va->pa xlate.) The MI_SET_CONTEXT command does have a flag to signal that even if the context is the same, force a reload. It's unclear exactly what this does, but I have a hunch it's the right thing to do. The logic assumes that we always emit a context switch after mapping new PDEs, and before we submit a batch. This is the case today, and has been the case since the inception of hardware contexts. A note in the comment let's the user know. It's not just for gen8. If the current context has mappings change, we need a context reload to switch v2: Rebased after ppgtt clean up patches. Split the warning for aliasing and true ppgtt options. And do not break aliasing ppgtt, where to->ppgtt is always null. v3: Invalidate PPGTT TLBs inside alloc_va_range. v4: Rename ppgtt_invalidate_tlbs to mark_tlbs_dirty and move pd_dirty_rings from i915_address_space to i915_hw_ppgtt. Fixes when neither ctx->ppgtt and aliasing_ppgtt exist. v5: Removed references to teardown_va_range. v6: Updated needs_pd_load_pre/post. v7: Fix pd_dirty_rings check in needs_pd_load_post, and update/move comment about updated PDEs to object_pin/bind (Mika). Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Signed-off-by: Ben Widawsky <ben@bwidawsk.net> Signed-off-by: Michel Thierry <michel.thierry@intel.com> (v2+) Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-03-20drm/i915: Track GEN6 page table usageBen Widawsky
Instead of implementing the full tracking + dynamic allocation, this patch does a bit less than half of the work, by tracking and warning on unexpected conditions. The tracking itself follows which PTEs within a page table are currently being used for objects. The next patch will modify this to actually allocate the page tables only when necessary. With the current patch there isn't much in the way of making a gen agnostic range allocation function. However, in the next patch we'll add more specificity which makes having separate functions a bit easier to manage. One important change introduced here is that DMA mappings are created/destroyed at the same page directories/tables are allocated/deallocated. Notice that aliasing PPGTT is not managed here. The patch which actually begins dynamic allocation/teardown explains the reasoning for this. v2: s/pdp.page_directory/pdp.page_directories Make a scratch page allocation helper v3: Rebase and expand commit message. v4: Allocate required pagetables only when it is needed, _bind_to_vm instead of bind_vma (Daniel). v5: Rebased to remove the unnecessary noise in the diff, also: - PDE mask is GEN agnostic, renamed GEN6_PDE_MASK to I915_PDE_MASK. - Removed unnecessary checks in gen6_alloc_va_range. - Changed map/unmap_px_single macros to use dma functions directly and be part of a static inline function instead. - Moved drm_device plumbing through page tables operation to its own patch. - Moved allocate/teardown_va_range calls until they are fully implemented (in subsequent patch). - Merged pt and scratch_pt unmap_and_free path. - Moved scratch page allocator helper to the patch that will use it. v6: Reduce complexity by not tearing down pagetables dynamically, the same can be achieved while freeing empty vms. (Daniel) v7: s/i915_dma_map_px_single/i915_dma_map_single s/gen6_write_pdes/gen6_write_pde Prevent a NULL case when only GGTT is available. (Mika) v8: Rebased after s/page_tables/page_table/. v9: Reworked i915_pte_index and i915_pte_count. Also exercise bitmap allocation here (gen6_alloc_va_range) and fix incorrect write_page_range in i915_gem_restore_gtt_mappings (Mika). Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Signed-off-by: Ben Widawsky <ben@bwidawsk.net> Signed-off-by: Michel Thierry <michel.thierry@intel.com> (v3+) Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-03-20drm/i915: Extract context switch skip and add pd load logicBen Widawsky
In Gen8, PDPs are saved and restored with legacy contexts (legacy contexts only exist on the render ring). So change the ordering of LRI vs MI_SET_CONTEXT for the initialization of the context. Also the only cases in which we need to manually update the PDPs are when MI_RESTORE_INHIBIT has been set in MI_SET_CONTEXT (i.e. when the context is not yet initialized or it is the default context). Legacy submission is not available post GEN8, so it isn't necessary to add extra checks for newer generations. v2: Use new functions to replace the logic right away (Daniel) v3: Add missing pd load logic. v4: Add warning in case pd_load_pre & pd_load_post are true, and add missing trace_switch_mm. Cleaned up pd_load conditions. Add more information about when is pd_load_post needed. (Mika) Signed-off-by: Ben Widawsky <ben@bwidawsk.net> Signed-off-by: Michel Thierry <michel.thierry@intel.com> (v2+) Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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