diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/inc/vm_helper.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/inc/vm_helper.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/inc/vm_helper.h b/drivers/gpu/drm/amd/display/dc/inc/vm_helper.h new file mode 100644 index 000000000000..a202206e22a3 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/inc/vm_helper.h @@ -0,0 +1,55 @@ +/* + * Copyright 2018 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: AMD + * + */ + +#ifndef DC_INC_VM_HELPER_H_ +#define DC_INC_VM_HELPER_H_ + +#include "dc_types.h" + +#define MAX_VMID 16 +#define MAX_HUBP 6 + +struct vmid_usage { + uint16_t vmid_usage[2]; +}; + +struct vm_helper { + unsigned int num_vmid; + unsigned int num_hubp; + unsigned int num_vmids_available; + uint64_t *ptb_assigned_to_vmid; + struct vmid_usage *hubp_vmid_usage; +}; + +uint8_t get_vmid_for_ptb( + struct vm_helper *vm_helper, + int64_t ptb, + uint8_t pipe_idx); + +struct vm_helper init_vm_helper( + unsigned int num_vmid, + unsigned int num_hubp); + +#endif /* DC_INC_VM_HELPER_H_ */ |