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b5d5429449
Also, fix pmap_change_attr() to ignore non-kernel mappings. * Fix a masking bug in mmu_booke_mapdev_attr() which caused it to align mappings to the smallest mapping alignment, instead of the largest. This caused mappings to be potentially pessimally aligned, using more TLB entries than necessary. * Return existing mappings from mmu_booke_mapdev_attr() that span more than one TLB1 entry. The drm-current-kmod drivers map discontiguous segments of the GPU, resulting in more than one TLB entry being used to satisfy the mapping. * Ignore non-kernel mappings in mmu_booke_change_attr(). There's a bug in the linuxkpi layer that causes it to actually try to change physical address mappings, instead of virtual addresses. amd64 doesn't encounter this because it ignores non-kernel mappings. With this it's possible to use drm-current-kmod on Book-E. |
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