drm/amdgpu: Fix multi-level page table bugs for large BOs v3

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Fix the start/end address calculation for address ranges that span
multiple page directories in amdgpu_vm_alloc_levels.

Add error messages if page tables aren't found. Otherwise the page
table update would just fail silently.

v2:
 * Change WARN_ON to WARN_ON_ONCE
 * Move masking of high address bits to caller
 * Add range-check for "from" and "to"
v3:
 * Replace WARN_ON_ONCE in get_pt with pr_err in caller

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Felix Kuehling 2017-03-28 20:36:12 -04:00 • committed by Alex Deucher

parent 9ceaeeafbd

commit 1866bac897

1 changed files with 18 additions and 6 deletions

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drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c

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