> Also, the tests fail consistently and are not sporadic.
>From these logs I see the below fragment, noting this:
gem_exec_gttfil-1010 [004] .N... 50.126420: map: IOMMU:
iova=0x00003fffffc00000 - 0x0000400000000000 paddr=0x00000001b9400000
size=4194304
^^^^^^^^^^^^^^^^^^^
Which is the high IOVA.. It has bit 45 set. I fed this mapping into
the kunit and it does map successfully.
It is not high enough to get into anything special about sign extend,
the driver sets:
if (cap_fl5lp_support(iommu->cap))
cfg.common.hw_max_vasz_lg2 = 57;
else
cfg.common.hw_max_vasz_lg2 = 48;
Maybe this code is wrong? Baolu what did you get for this log:
[ 50.126166] i915 0000:00:02.0: Using 46-bit DMA addresses
In your force second stage test? Is it 46? Second stage uses different
code to compute vasz_lg2 and is sensitive to magw:
if (mgaw >= 48 && (sagaw & BIT(3)))
return min(57, mgaw);
else if (mgaw >= 39 && (sagaw & BIT(2)))
return min(48, mgaw);
else if (mgaw >= 30 && (sagaw & BIT(1)))
return min(39, mgaw);
Maybe this is the issue?
I don't know how the GPU works, is that the command buffer that is
getting 'request 6000'
[ 50.128337] i915 0000:00:02.0: [drm] *ERROR* GT0: GUC: CT: Failed to process
request 6000 (-EOPNOTSUPP)
?
Chaitanya, can you collect these two log files from the commit that
works please? Lets see if it uses the same IOVA and same 46 bit limit?
Thanks,
Jason
[ 49.064561] [IGT] gem_exec_gttfill:
starting subtest basic
[..]
<idle>-0 [010] ..s1. 50.124236: map: IOMMU:
iova=0x00000000ffefa000 - 0x00000000ffefb000 paddr=0x0000000100271000 size=4096
gem_exec_gttfil-1010 [004] ..... 50.124414: map: IOMMU:
iova=0x00000000433fc000 - 0x00000000433fd000 paddr=0x0000000128532000 size=4096
gem_exec_gttfil-1010 [004] ..... 50.124598: map: IOMMU:
iova=0x000000002ebfc000 - 0x000000002ebfd000 paddr=0x0000000128533000 size=4096
gem_exec_gttfil-1010 [004] ..... 50.124782: map: IOMMU:
iova=0x00000000443f9000 - 0x00000000443fa000 paddr=0x0000000128534000 size=4096
gem_exec_gttfil-1010 [004] ..... 50.124966: map: IOMMU:
iova=0x000000002dbf9000 - 0x000000002dbfa000 paddr=0x0000000128535000 size=4096
gem_exec_gttfil-1010 [004] ..... 50.125149: map: IOMMU:
iova=0x000000002cbfd000 - 0x000000002cbfe000 paddr=0x0000000128536000 size=4096
gem_exec_gttfil-1010 [004] ..... 50.125347: map: IOMMU:
iova=0x00000000413fd000 - 0x00000000413fe000 paddr=0x0000000128537000 size=4096
gem_exec_gttfil-1010 [004] ..... 50.125538: map: IOMMU:
iova=0x000000001fbfe000 - 0x000000001fbff000 paddr=0x0000000128538000 size=4096
gem_exec_gttfil-1010 [004] ..... 50.125580: i915_request_retire.part.0:
0000:00:02.0 rcs0: fence 18:1034, current 1036
gem_exec_gttfil-1010 [004] ..... 50.125590: __i915_request_commit:
0000:00:02.0 rcs0: fence 18:1038, current 1036
gem_exec_gttfil-1010 [004] D..1. 50.125592: __i915_request_submit:
0000:00:02.0 rcs0: fence 18:1038, current 1036
kworker/u64:1-138 [002] ..... 50.125600: unmap: IOMMU:
iova=0x000000001fbfe000 - 0x000000001fbff000 size=4096 unmapped_size=4096
kworker/u64:1-138 [002] ..... 50.125627: unmap: IOMMU:
iova=0x00000000413fd000 - 0x00000000413fe000 size=4096 unmapped_size=4096
kworker/u64:1-138 [002] ..... 50.125643: unmap: IOMMU:
iova=0x000000002cbfd000 - 0x000000002cbfe000 size=4096 unmapped_size=4096
kworker/u64:1-138 [002] ..... 50.125659: unmap: IOMMU:
iova=0x000000002dbf9000 - 0x000000002dbfa000 size=4096 unmapped_size=4096
kworker/u64:1-138 [002] ..... 50.125675: unmap: IOMMU:
iova=0x00000000443f9000 - 0x00000000443fa000 size=4096 unmapped_size=4096
[ 50.126166] i915 0000:00:02.0: Using
46-bit DMA addresses
gem_exec_gttfil-1010 [004] .N... 50.126420: map: IOMMU:
iova=0x00003fffffc00000 - 0x0000400000000000 paddr=0x00000001b9400000
size=4194304
gem_exec_gttfil-1010 [004] ..... 50.126701: map: IOMMU:
iova=0x000000001fbfd000 - 0x000000001fbfe000 paddr=0x0000000128539000 size=4096
gem_exec_gttfil-1010 [004] ..... 50.126892: map: IOMMU:
iova=0x000000001fbfc000 - 0x000000001fbfd000 paddr=0x000000012853a000 size=4096
gem_exec_gttfil-1010 [004] ..... 50.127083: map: IOMMU:
iova=0x000000002d3fb000 - 0x000000002d3fc000 paddr=0x000000012853b000 size=4096
gem_exec_gttfil-1010 [004] ..... 50.127271: map: IOMMU:
iova=0x0000000041bfc000 - 0x0000000041bfd000 paddr=0x000000012853c000 size=4096
gem_exec_gttfil-1010 [004] ..... 50.127467: map: IOMMU:
iova=0x000000001dbfc000 - 0x000000001dbfd000 paddr=0x000000012853d000 size=4096
gem_exec_gttfil-1010 [004] ..... 50.127653: map: IOMMU:
iova=0x000000001f3fa000 - 0x000000001f3fb000 paddr=0x000000012853e000 size=4096
gem_exec_gttfil-1010 [004] ..... 50.127838: map: IOMMU:
iova=0x000000001f3f9000 - 0x000000001f3fa000 paddr=0x000000012853f000 size=4096
gem_exec_gttfil-1010 [004] ..... 50.127877: i915_request_retire.part.0:
0000:00:02.0 rcs0: fence 18:1036, current 1038
gem_exec_gttfil-1010 [004] ..... 50.127887: __i915_request_commit:
0000:00:02.0 rcs0: fence 18:1040, current 1038
gem_exec_gttfil-1010 [004] D..1. 50.127890: __i915_request_submit:
0000:00:02.0 rcs0: fence 18:1040, current 1038
kworker/u64:1-138 [002] ..... 50.127966: unmap: IOMMU:
iova=0x000000001f3f9000 - 0x000000001f3fa000 size=4096 unmapped_size=4096
kworker/u64:1-138 [002] ..... 50.127990: unmap: IOMMU:
iova=0x000000001f3fa000 - 0x000000001f3fb000 size=4096 unmapped_size=4096
kworker/u64:1-138 [002] ..... 50.128006: unmap: IOMMU:
iova=0x000000001dbfc000 - 0x000000001dbfd000 size=4096 unmapped_size=4096
kworker/u64:1-138 [002] ..... 50.128024: unmap: IOMMU:
iova=0x0000000041bfc000 - 0x0000000041bfd000 size=4096 unmapped_size=4096
kworker/u64:1-138 [002] ..... 50.128042: unmap: IOMMU:
iova=0x000000002d3fb000 - 0x000000002d3fc000 size=4096 unmapped_size=4096
[ 50.128337] i915 0000:00:02.0: [drm]
*ERROR* GT0: GUC: CT: Failed to process request 6000 (-EOPNOTSUPP)
gem_exec_gttfil-1010 [004] ..... 50.128561: map: IOMMU:
iova=0x00003fffff800000 - 0x00003fffffc00000 paddr=0x00000001b9800000
size=4194304
