| /* |
| * 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 |
| * |
| */ |
| |
| #include "vm_helper.h" |
| #include "dc.h" |
| |
| void vm_helper_mark_vmid_used(struct vm_helper *vm_helper, unsigned int pos, uint8_t hubp_idx) |
| { |
| struct vmid_usage vmids = vm_helper->hubp_vmid_usage[hubp_idx]; |
| |
| vmids.vmid_usage[0] = vmids.vmid_usage[1]; |
| vmids.vmid_usage[1] = 1 << pos; |
| } |
| |
| int dc_setup_system_context(struct dc *dc, struct dc_phy_addr_space_config *pa_config) |
| { |
| int num_vmids = 0; |
| |
| /* Call HWSS to setup HUBBUB for address config */ |
| if (dc->hwss.init_sys_ctx) { |
| num_vmids = dc->hwss.init_sys_ctx(dc->hwseq, dc, pa_config); |
| |
| /* Pre-init system aperture start/end for all HUBP instances (if not gating?) |
| * or cache system aperture if using power gating |
| */ |
| memcpy(&dc->vm_pa_config, pa_config, sizeof(struct dc_phy_addr_space_config)); |
| dc->vm_pa_config.valid = true; |
| } |
| |
| return num_vmids; |
| } |
| |
| void dc_setup_vm_context(struct dc *dc, struct dc_virtual_addr_space_config *va_config, int vmid) |
| { |
| dc->hwss.init_vm_ctx(dc->hwseq, dc, va_config, vmid); |
| } |
| |
| int dc_get_vmid_use_vector(struct dc *dc) |
| { |
| int i; |
| int in_use = 0; |
| |
| for (i = 0; i < MAX_HUBP; i++) |
| in_use |= dc->vm_helper->hubp_vmid_usage[i].vmid_usage[0] |
| | dc->vm_helper->hubp_vmid_usage[i].vmid_usage[1]; |
| return in_use; |
| } |
| |
| void vm_helper_init(struct vm_helper *vm_helper, unsigned int num_vmid) |
| { |
| vm_helper->num_vmid = num_vmid; |
| |
| memset(vm_helper->hubp_vmid_usage, 0, sizeof(vm_helper->hubp_vmid_usage[0]) * MAX_HUBP); |
| } |