/*
* 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 ;
dc->dml2_options.gpuvm_enable = true ;
dc_z10_save_init(dc);
}
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);
}
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