pm24.git/drivers/gpu/drm/amd/display/dc/inc/vm_helper.h, branch v5.1Unnamed repository; edit this file 'description' to name the repository.https://git.kobert.dev/pm24.git/atom/drivers/gpu/drm/amd/display/dc/inc/vm_helper.h?h=v5.12019-02-06T18:30:12Zdrm/amd/display: DC VM Fixes2019-02-06T18:30:12ZEryk Broleryk.brol@amd.com2019-01-21T19:40:16Zurn:sha1:00fbeb4e2f9eda0ebd57eefdcf25e41958f98fa5
[Why]
VM_helper needs to be intialized with the dc struct in order to fix
an unallocated memory issue. System aperture settings should be
initialized to 0 and guarded with a check to make sure vm_config
is valid.
[How]
Allocate and free memory for vm_helper with other dc members.
Check whether the vm_config valid bit is set before initializing
aperture settings.
Signed-off-by: Eryk Brol <eryk.brol@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amd/display: Introduce DC VM interface2019-01-25T21:15:36ZEryk Broleryk.brol@amd.com2018-12-07T15:25:13Zurn:sha1:b9708648766d8b15003a543ca36863e731b7b1ba
Virtual memory allows display to support flipping to surfaces which
are not allocated contiguously in memory with physical addresses,
instead a 1-4 level page table is used.
This is beneficial because it allows the scattering of large surfaces
to improve memory efficiency and security.
Signed-off-by: Eryk Brol <eryk.brol@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>