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2020-01-14xprtrdma: Fix completion wait during device removalChuck Lever
I've found that on occasion, "rmmod <dev>" will hang while if an NFS is under load. Ensure that ri_remove_done is initialized only just before the transport is woken up to force a close. This avoids the completion possibly getting initialized again while the CM event handler is waiting for a wake-up. Fixes: bebd031866ca ("xprtrdma: Support unplugging an HCA from under an NFS mount") Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2020-01-14xprtrdma: Fix create_qp crash on device unloadChuck Lever
On device re-insertion, the RDMA device driver crashes trying to set up a new QP: Nov 27 16:32:06 manet kernel: BUG: kernel NULL pointer dereference, address: 00000000000001c0 Nov 27 16:32:06 manet kernel: #PF: supervisor write access in kernel mode Nov 27 16:32:06 manet kernel: #PF: error_code(0x0002) - not-present page Nov 27 16:32:06 manet kernel: PGD 0 P4D 0 Nov 27 16:32:06 manet kernel: Oops: 0002 [#1] SMP Nov 27 16:32:06 manet kernel: CPU: 1 PID: 345 Comm: kworker/u28:0 Tainted: G W 5.4.0 #852 Nov 27 16:32:06 manet kernel: Hardware name: Supermicro SYS-6028R-T/X10DRi, BIOS 1.1a 10/16/2015 Nov 27 16:32:06 manet kernel: Workqueue: xprtiod xprt_rdma_connect_worker [rpcrdma] Nov 27 16:32:06 manet kernel: RIP: 0010:atomic_try_cmpxchg+0x2/0x12 Nov 27 16:32:06 manet kernel: Code: ff ff 48 8b 04 24 5a c3 c6 07 00 0f 1f 40 00 c3 31 c0 48 81 ff 08 09 68 81 72 0c 31 c0 48 81 ff 83 0c 68 81 0f 92 c0 c3 8b 06 <f0> 0f b1 17 0f 94 c2 84 d2 75 02 89 06 88 d0 c3 53 ba 01 00 00 00 Nov 27 16:32:06 manet kernel: RSP: 0018:ffffc900035abbf0 EFLAGS: 00010046 Nov 27 16:32:06 manet kernel: RAX: 0000000000000000 RBX: 00000000000001c0 RCX: 0000000000000000 Nov 27 16:32:06 manet kernel: RDX: 0000000000000001 RSI: ffffc900035abbfc RDI: 00000000000001c0 Nov 27 16:32:06 manet kernel: RBP: ffffc900035abde0 R08: 000000000000000e R09: ffffffffffffc000 Nov 27 16:32:06 manet kernel: R10: 0000000000000000 R11: 000000000002e800 R12: ffff88886169d9f8 Nov 27 16:32:06 manet kernel: R13: ffff88886169d9f4 R14: 0000000000000246 R15: 0000000000000000 Nov 27 16:32:06 manet kernel: FS: 0000000000000000(0000) GS:ffff88846fa40000(0000) knlGS:0000000000000000 Nov 27 16:32:06 manet kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Nov 27 16:32:06 manet kernel: CR2: 00000000000001c0 CR3: 0000000002009006 CR4: 00000000001606e0 Nov 27 16:32:06 manet kernel: Call Trace: Nov 27 16:32:06 manet kernel: do_raw_spin_lock+0x2f/0x5a Nov 27 16:32:06 manet kernel: create_qp_common.isra.47+0x856/0xadf [mlx4_ib] Nov 27 16:32:06 manet kernel: ? slab_post_alloc_hook.isra.60+0xa/0x1a Nov 27 16:32:06 manet kernel: ? __kmalloc+0x125/0x139 Nov 27 16:32:06 manet kernel: mlx4_ib_create_qp+0x57f/0x972 [mlx4_ib] The fix is to copy the qp_init_attr struct that was just created by rpcrdma_ep_create() instead of using the one from the previous connection instance. Fixes: 98ef77d1aaa7 ("xprtrdma: Send Queue size grows after a reconnect") Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2020-01-14Merge branch 'parisc-5.5-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc fixes from Helge Deller: "A boot crash fix by Mike Rapoport and a printk fix by Krzysztof Kozlowski" * 'parisc-5.5-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: fix map_pages() to actually populate upper directory parisc: Use proper printk format for resource_size_t
2020-01-14Merge tag 'asm-generic-5.5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground Pull asm-generic fixes from Arnd Bergmann: "Here are two bugfixes from Mike Rapoport, both fixing compile-time errors for the nds32 architecture that were recently introduced" * tag 'asm-generic-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground: nds32: fix build failure caused by page table folding updates asm-generic/nds32: don't redefine cacheflush primitives
2020-01-14Merge tag 'scsi-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Two simple fixes in the upper drivers (so both fairly core), one in enclosures, which fixes replugging a device into an enclosure slot and one in the disk driver which fixes revalidating a drive with protection information (PI) to make it a non-PI drive ... previously we were still remembering the old PI state. Both fixed issues are quite rare in the field" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: enclosure: Fix stale device oops with hot replug scsi: sd: Clear sdkp->protection_type if disk is reformatted without PI
2020-01-14Merge branch 'dhowells' (patches from DavidH)Linus Torvalds
Merge misc fixes from David Howells. Two afs fixes and a key refcounting fix. * dhowells: afs: Fix afs_lookup() to not clobber the version on a new dentry afs: Fix use-after-loss-of-ref keys: Fix request_key() cache
2020-01-14afs: Fix afs_lookup() to not clobber the version on a new dentryDavid Howells
Fix afs_lookup() to not clobber the version set on a new dentry by afs_do_lookup() - especially as it's using the wrong version of the version (we need to use the one given to us by whatever op the dir contents correspond to rather than what's in the afs_vnode). Fixes: 9dd0b82ef530 ("afs: Fix missing dentry data version updating") Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-14afs: Fix use-after-loss-of-refDavid Howells
afs_lookup() has a tracepoint to indicate the outcome of d_splice_alias(), passing it the inode to retrieve the fid from. However, the function gave up its ref on that inode when it called d_splice_alias(), which may have failed and dropped the inode. Fix this by caching the fid. Fixes: 80548b03991f ("afs: Add more tracepoints") Reported-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-14keys: Fix request_key() cacheDavid Howells
When the key cached by request_key() and co. is cleaned up on exit(), the code looks in the wrong task_struct, and so clears the wrong cache. This leads to anomalies in key refcounting when doing, say, a kernel build on an afs volume, that then trigger kasan to report a use-after-free when the key is viewed in /proc/keys. Fix this by making exit_creds() look in the passed-in task_struct rather than in current (the task_struct cleanup code is deferred by RCU and potentially run in another task). Fixes: 7743c48e54ee ("keys: Cache result of request_key*() temporarily in task_struct") Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-01-14Merge branch 'akpm' (patches from Andrew)Linus Torvalds
Merge misc fixes from Andrew Morton: "11 mm fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: mm: khugepaged: add trace status description for SCAN_PAGE_HAS_PRIVATE mm: memcg/slab: call flush_memcg_workqueue() only if memcg workqueue is valid mm/page-writeback.c: improve arithmetic divisions mm/page-writeback.c: use div64_ul() for u64-by-unsigned-long divide mm/page-writeback.c: avoid potential division by zero in wb_min_max_ratio() mm, debug_pagealloc: don't rely on static keys too early mm: memcg/slab: fix percpu slab vmstats flushing mm/shmem.c: thp, shmem: fix conflict of above-47bit hint address and PMD alignment mm/huge_memory.c: thp: fix conflict of above-47bit hint address and PMD alignment mm/memory_hotplug: don't free usage map when removing a re-added early section mm, thp: tweak reclaim/compaction effort of local-only and all-node allocations
2020-01-14drm/amdgpu/debugfs: properly handle runtime pmAlex Deucher
If driver debugfs files are accessed, power up the GPU when necessary. Reviewed-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu/pm: properly handle runtime pmAlex Deucher
If power management sysfs or debugfs files are accessed, power up the GPU when necessary. Reviewed-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu: add header file for macro SZ_1MFlora Cui
Fixes: 4dee6e4ca50a ("drm/amdgpu: use linux size macro to simplify ONE_Kib & One_Mib") Signed-off-by: Flora Cui <flora.cui@amd.com> Reviewed-by: Kevin Wang <kevin1.wang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amd/display: remove unnecessary conversion to boolChen Zhou
The conversion to bool is not needed, remove it. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Chen Zhou <chenzhou10@huawei.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amd/display: Reorder detect_edp_sink_caps before link settings read.Mario Kleiner
read_current_link_settings_on_detect() on eDP 1.4+ may use the edp_supported_link_rates table which is set up by detect_edp_sink_caps(), so that function needs to be called first. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com> Cc: Martin Leung <martin.leung@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu/psp: declare navi1x ta firmwareAlex Deucher
So that it gets included in the initrd. At the moment this is optional firmware that contains support for HDCP. Reviewed-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu: Match TC hash settings to DF settings (v2)Joseph Greathouse
On Arcturus, data fabric hashing is set by the VBIOS, and affects which addresses map to which memory channels. The gfx core's caches also need to know this mapping, but the hash settings for these these caches is set by the driver. This change queries the DF to understand how the VBIOS configured DF, then matches the TC hash configuration bits to do the same thing. v2: squash in warning fix Signed-off-by: Joseph Greathouse <Joseph.Greathouse@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu: add defines for DF and TCP HashingJoseph Greathouse
On Arcturus, we need TC channel hashing, which is set by the driver, to match DF hashing, which is set by VBIOS. To match these, we plan to query the DF information and then properly set the TC configuration bits to match them. This patch adds the required fields to register definitions in preparation for a future patch which will use them. Signed-off-by: Joseph Greathouse <Joseph.Greathouse@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu: Create generic DF struct in adevJoseph Greathouse
The only data fabric information the adev struct currently contains is a function pointer table. In the near future, we will be adding some cached DF information into adev. As such, this patch creates a new amdgpu_df struct for adev. Right now, it only containst the old function pointer table, but new stuff will be added soon. Signed-off-by: Joseph Greathouse <Joseph.Greathouse@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amd/display: add Pollock IDs, fix Pollock & Dali clk mgr constructMichael Strauss
[WHY] Only a single voltage level should be available to Pollock (min level) Pollock & Dali get misidentified as Renoir, use wrong clk mgr constructor [HOW] Add provided Pollock IDs to ASIC Rev. ID list. Create new Pollock ASIC RID check, fix RV2 & Dali ASIC checks. Check RID and set max voltage level to 0 if Pollock is detected. Work around broken ASICREV_IS_RENOIR, IS_RAVEN2, etc. checks by performing Dali/Pollock checks before they can be misidentified as RN. Signed-off-by: Michael Strauss <michael.strauss@amd.com> Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu: preserve RSMU UMC index mode stateJohn Clements
between UMC RAS err register access restore previous RSMU UMC index mode state Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: John Clements <john.clements@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu: disable XGMI TA unload for arcturusJohn Clements
in event of GPU reset, XGMI TA unload causes unrecoverable GPU hang Acked-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: John Clements <john.clements@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu: update goldensetting for renoirAaron Liu
Update mmSDMA0_UTCL1_WATERMK golden setting for renoir. Signed-off-by: Aaron Liu <aaron.liu@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amd/powerplay: update SMU12_DRIVER_IF_VERSION to 11Aaron Liu
This patch updates SMU12_DRIVER_IF_VERSION to 11. Signed-off-by: Aaron Liu <aaron.liu@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu/gmc10: free stolen memory in late_initAlex Deucher
We don't need to store the pre-OS console memory after the driver has loaded so free it. Reviewed-by: Huang Rui <ray.huang@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu/gmc10: remove dead codeAlex Deucher
Leftover from bring up. We look up the actual pre-OS memory usage value later in the same function. Reviewed-by: Huang Rui <ray.huang@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu/display: set gpu vm flag for renoirAlex Deucher
It won't get used unless the driver allows the gtt domain for display buffers which is controlled elsewhere. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Huang Rui <ray.huang@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu: enable S/G display on PCO and RV2 (v2)Alex Deucher
It should work on all Raven variants, but some users have reported issues with original Raven with IOMMU enabled. So far there have been no issues observed with PCO or RV2. v2: split out the dm init and domain changes into separate patches. Acked-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Huang Rui <ray.huang@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu/display: set gpu vm flag for all asics which support itAlex Deucher
It won't get used unless the driver allows the gtt domain for display buffers which is controlled elsewhere. Acked-by: Huang Rui <ray.huang@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu/gfx9: remove unused sdma headersAlex Deucher
All of the sdma stuff these were used for moves to the sdma code, so remove them. Reviewed-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amd/amdgpu: add missing umc_6_1_2_sh_mask.h header file (v2)Tom St Denis
(v2): Fix preprocessor tag Signed-off-by: Tom St Denis <tom.stdenis@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu: check sdma ras funcs pointer before accessingHawking Zhang
sdma ras funcs are not supported by ASIC prior to vega20 Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com> Reviewed-by: Le Ma <Le.Ma@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu: calculate MCUMC_ADDRT0 per asic's UMC offsetGuchun Chen
Hardcoded offset is not friendly. And another benifit of this patch is to keep read and write access to this register be consistent with other similar UMC regsiters in this file. Signed-off-by: Guchun Chen <guchun.chen@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu: add MCUMC_ADDRT0 offset to ip header fileGuchun Chen
Both are needed on vega20 and arcturus chip. Signed-off-by: Guchun Chen <guchun.chen@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu/powerplay: fix warning in smu_v11_0.cAlex Deucher
Cast to make min() happy. The values are well within range. Reviewed-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amd/powerplay: sw ctf for arcturusKenneth Feng
change the sw ctf setting to smu_v11_0_set_thermal_range() since software_shutdown_temp shares the same definition and name in all the smu11 project. Signed-off-by: Kenneth Feng <kenneth.feng@amd.com> Reviewed-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu/sriov: workaround on rev_id for Navi12 under sriovTiecheng Zhou
guest vm gets 0xffffffff when reading RCC_DEV0_EPF0_STRAP0, as a consequence, the rev_id and external_rev_id are wrong. workaround it by hardcoding the rev_id to 0, which is the default value. v2. add comment in the code Signed-off-by: Tiecheng Zhou <Tiecheng.Zhou@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amd/display: Don't disable DP PHY when link loss happensZhan Liu
[Why] There is a use case that link loss happens accidentally, and we need to recover that link loss as soon as possible. Under this circumstance, we will perform link training, and try to recover the link that's just lost. However, if link PHY is disabled before link training happens, then DP display will never come back again. Also, please note that dropping this disable_phy function call won't break USB-C hotplug functionality. (This line of code was firstly introduced associated with a patch to fix USB-C hotplug issue) [How] Don't disable DP transmitter and its encoder before link training happens, even if link loss is detected. Signed-off-by: Zhan Liu <zhan.liu@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu: read sdma edc counter to clear the countersHawking Zhang
SDMA edc counter registers were added in gfx edc counters array. When querying gfx error counter in that array, there is no way to differentiate sdma instance number for different asic and then results to NULL pointer access when trying to read sdma register base address for instances greater than 2 on Vega20. In addition, this also results to wrong gfx error counters since it actually added sdma edc counters. Therefore, sdma edc counter registers should be separated from gfx edc counter regsiter array and only get initialized when driver tries to enable sdma ras. Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu: add ras_late_init and ras_fini for sdma v4Hawking Zhang
move ras_late_init and ras_fini to sdma_ras_funcs table Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu: support error reporting for sdma ip blockHawking Zhang
invoke sdma query_ras_error_count to get sdma single bit error count Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu: add query_ras_error_count function for sdma v4Hawking Zhang
query_ras_error_count function will be invoked to query single bit error count detected in sdma ip block Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu: enable VCN2.5 IP block for ArcturusLeo Liu
With default PSP FW loading Signed-off-by: Leo Liu <leo.liu@amd.com> Reviewed-by: James Zhu <James.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu/vcn2.5: fix PSP FW loading for the second instanceLeo Liu
ucodes for instances are from different location Signed-off-by: Leo Liu <leo.liu@amd.com> Reviewed-by: James Zhu <James.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu: catch amdgpu_irq_add_id failureNirmoy Das
Do not ignore amdgpu_irq_add_id return value while registering VMC page fault interrupt. Signed-off-by: Nirmoy Das <nirmoy.das@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amd/powerplay: cover the powerplay implementation details V3Evan Quan
This can save users much troubles. As they do not actually need to care whether swSMU or traditional powerplay routine should be used. V2: apply the fixes to vi.c and cik.c also V3: squash in oops fix Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdkfd: Improve function get_sdma_rlc_reg_offset() (v2)Yong Zhao
The SOC15_REG_OFFSET() macro needs to dereference adev->reg_offset[IP] pointer, which is sometimes NULL when there are fewer than 8 sdma engines. Avoid that by not initializing the array regardless. v2: squash in warning fixes Signed-off-by: Yong Zhao <Yong.Zhao@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14drm/amdgpu/display: Use u64 divide macro for round up divisionMikita Lipski
[why] Fix compilation warnings on i386 architecture: undefined reference to `__udivdi3' [how] Switch DIV_ROUND_UP to DIV64_U64_ROUND_UP Reported-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-14Documentation/process: Add Amazon contact for embargoed hardware issuesDavid Woodhouse
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Link: https://lore.kernel.org/r/da6467d2649339b42339124fd19a8a2f91cc00dd.camel@infradead.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-14lkdtm/bugs: fix build error in lkdtm_UNSET_SMEPBrendan Higgins
When building ARCH=um with CONFIG_UML_X86=y and CONFIG_64BIT=y we get the build errors: drivers/misc/lkdtm/bugs.c: In function ‘lkdtm_UNSET_SMEP’: drivers/misc/lkdtm/bugs.c:288:8: error: implicit declaration of function ‘native_read_cr4’ [-Werror=implicit-function-declaration] cr4 = native_read_cr4(); ^~~~~~~~~~~~~~~ drivers/misc/lkdtm/bugs.c:290:13: error: ‘X86_CR4_SMEP’ undeclared (first use in this function); did you mean ‘X86_FEATURE_SMEP’? if ((cr4 & X86_CR4_SMEP) != X86_CR4_SMEP) { ^~~~~~~~~~~~ X86_FEATURE_SMEP drivers/misc/lkdtm/bugs.c:290:13: note: each undeclared identifier is reported only once for each function it appears in drivers/misc/lkdtm/bugs.c:297:2: error: implicit declaration of function ‘native_write_cr4’; did you mean ‘direct_write_cr4’? [-Werror=implicit-function-declaration] native_write_cr4(cr4); ^~~~~~~~~~~~~~~~ direct_write_cr4 So specify that this block of code should only build when CONFIG_X86_64=y *AND* CONFIG_UML is unset. Signed-off-by: Brendan Higgins <brendanhiggins@google.com> Acked-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20191213003522.66450-1-brendanhiggins@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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