/*
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* Copyright 2018 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: AMD
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*
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*/
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#include "vm_helper.h"
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#include "dc.h"
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void vm_helper_mark_vmid_used(struct vm_helper *vm_helper, unsigned int pos, uint8_t hubp_idx)
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{
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struct vmid_usage vmids = vm_helper->hubp_vmid_usage[hubp_idx];
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vmids.vmid_usage[0] = vmids.vmid_usage[1];
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vmids.vmid_usage[1] = 1 << pos;
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}
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int dc_setup_system_context(struct dc *dc, struct dc_phy_addr_space_config *pa_config)
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{
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int num_vmids = 0;
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/* Call HWSS to setup HUBBUB for address config */
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if (dc->hwss.init_sys_ctx) {
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num_vmids = dc->hwss.init_sys_ctx(dc->hwseq, dc, pa_config);
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/* Pre-init system aperture start/end for all HUBP instances (if not gating?)
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* or cache system aperture if using power gating
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*/
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memcpy(&dc->vm_pa_config, pa_config, sizeof(struct dc_phy_addr_space_config));
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dc->vm_pa_config.valid = true;
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}
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return num_vmids;
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}
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void dc_setup_vm_context(struct dc *dc, struct dc_virtual_addr_space_config *va_config, int vmid)
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{
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dc->hwss.init_vm_ctx(dc->hwseq, dc, va_config, vmid);
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}
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int dc_get_vmid_use_vector(struct dc *dc)
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{
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int i;
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int in_use = 0;
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for (i = 0; i < MAX_HUBP; i++)
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in_use |= dc->vm_helper->hubp_vmid_usage[i].vmid_usage[0]
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| dc->vm_helper->hubp_vmid_usage[i].vmid_usage[1];
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return in_use;
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}
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void vm_helper_init(struct vm_helper *vm_helper, unsigned int num_vmid)
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{
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vm_helper->num_vmid = num_vmid;
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memset(vm_helper->hubp_vmid_usage, 0, sizeof(vm_helper->hubp_vmid_usage[0]) * MAX_HUBP);
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}
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