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authorThomas Hellstrom (VMware) <thomas_os@shipmail.org>2020-03-24 20:49:26 +0300
committerThomas Hellstrom (VMware) <thomas_os@shipmail.org>2020-03-24 20:49:26 +0300
commitb182341667091c8edfb24a7caae600a2f08d7857 (patch)
treeb3feeb4a5e14baab835a8e593db2afd77b9a8921 /drivers/gpu/drm/drm_gem_shmem_helper.c
parent75390281ab68534fbecc71f370203d7981f04a3a (diff)
downloadlinux-b182341667091c8edfb24a7caae600a2f08d7857.tar.xz
drm: Add a drm_get_unmapped_area() helper
Unaligned virtual addresses makes it unlikely that huge page-table entries can be used. So align virtual buffer object address huge page boundaries to the underlying physical address huge page boundaries taking buffer object sizes into account to determine when it might be possible to use huge page-table entries. Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Michal Hocko <mhocko@suse.com> Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Ralph Campbell <rcampbell@nvidia.com> Cc: "Jérôme Glisse" <jglisse@redhat.com> Cc: "Christian König" <christian.koenig@amd.com> Cc: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Thomas Hellstrom (VMware) <thomas_os@shipmail.org> Reviewed-by: Roland Scheidegger <sroland@vmware.com> Acked-by: Christian König <christian.koenig@amd.com>
Diffstat (limited to 'drivers/gpu/drm/drm_gem_shmem_helper.c')
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