On 2021-01-11 11:52, Sai Prakash Ranjan wrote:
Hi Isaac,
I gave this series a go on chromebook and saw these warnings
and several device probe failures, logs attached below:
WARN corresponds to this code in arm_lpae_map_by_pgsize()
if (WARN_ON(iaext || (paddr + size) >> cfg->oas))
return -ERANGE;
Logs:
[ 2.411391] ------------[ cut here ]------------
[ 2.416149] WARNING: CPU: 6 PID: 56 at
drivers/iommu/io-pgtable-arm.c:492 arm_lpae_map_sg+0x234/0x248
[ 2.425606] Modules linked in:
[ 2.428749] CPU: 6 PID: 56 Comm: kworker/6:1 Not tainted 5.10.5 #970
[ 2.440287] Workqueue: events deferred_probe_work_func
[ 2.445563] pstate: 20c00009 (nzCv daif +PAN +UAO -TCO BTYPE=--)
[ 2.451726] pc : arm_lpae_map_sg+0x234/0x248
[ 2.456112] lr : arm_lpae_map_sg+0xe0/0x248
[ 2.460410] sp : ffffffc010513750
[ 2.463820] x29: ffffffc010513790 x28: ffffffb943332000
[ 2.469281] x27: 0000000ffffff000 x26: ffffffb943d14900
[ 2.474738] x25: 0000000000001000 x24: 0000000103465000
[ 2.480196] x23: 0000000000000001 x22: 0000000103466000
[ 2.485645] x21: 0000000000000003 x20: 0000000000000a20
[ 2.491103] x19: ffffffc010513850 x18: 0000000000000001
[ 2.496562] x17: 0000000000000002 x16: 00000000ffffffff
[ 2.502021] x15: 0000000000000000 x14: 0000000000000000
[ 2.507479] x13: 0000000000000001 x12: 0000000000000000
[ 2.512928] x11: 0000001000000000 x10: 0000000000000000
[ 2.518385] x9 : 0000000000000001 x8 : 0000000040201000
[ 2.523844] x7 : 0000000000000a20 x6 : ffffffb943463000
[ 2.529302] x5 : 0000000000000003 x4 : 0000000000001000
[ 2.534760] x3 : 0000000000000001 x2 : ffffffb941f605a0
[ 2.540219] x1 : 0000000000000003 x0 : 0000000000000e40
[ 2.545679] Call trace:
[ 2.548196] arm_lpae_map_sg+0x234/0x248
[ 2.552225] arm_smmu_map_sg+0x80/0xc4
[ 2.556078] __iommu_map_sg+0x6c/0x188
[ 2.559931] iommu_map_sg_atomic+0x18/0x20
[ 2.564144] iommu_dma_alloc_remap+0x26c/0x34c
[ 2.568703] iommu_dma_alloc+0x9c/0x268
[ 2.572647] dma_alloc_attrs+0x88/0xfc
[ 2.576503] gsi_ring_alloc+0x50/0x144
[ 2.580356] gsi_init+0x2c4/0x5c4
[ 2.583766] ipa_probe+0x14c/0x2b4
[ 2.587263] platform_drv_probe+0x94/0xb4
[ 2.591377] really_probe+0x138/0x348
[ 2.595145] driver_probe_device+0x80/0xb8
[ 2.599358] __device_attach_driver+0x90/0xa8
[ 2.603829] bus_for_each_drv+0x84/0xcc
[ 2.607772] __device_attach+0xc0/0x148
[ 2.611713] device_initial_probe+0x18/0x20
[ 2.616012] bus_probe_device+0x38/0x94
[ 2.619953] deferred_probe_work_func+0x78/0xb0
[ 2.624611] process_one_work+0x210/0x3dc
[ 2.628726] worker_thread+0x284/0x3e0
[ 2.632578] kthread+0x148/0x1a8
[ 2.635891] ret_from_fork+0x10/0x18
[ 2.639562] ---[ end trace 9bac18cad6a9862e ]---
[ 2.644414] ipa 1e40000.ipa: error -12 allocating channel 0 event
ring
[ 2.651656] ipa: probe of 1e40000.ipa failed with error -12
[ 2.660072] dwc3 a600000.dwc3: Adding to iommu group 8
[ 2.668632] xhci-hcd xhci-hcd.13.auto: xHCI Host Controller
[ 2.674680] xhci-hcd xhci-hcd.13.auto: new USB bus registered,
assigned bus number 1
<snip>...
Isaac provided a fix which he will post as v2 and no warnings were
observed
with that fix.
Tested-by: Sai Prakash Ranjan <saiprakash.ran...@codeaurora.org>
Thanks,
Sai
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