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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/gpu/drm/amd/display/dc/core/dc_vm_helper.c | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core/dc_vm_helper.c')
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_vm_helper.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_vm_helper.c b/drivers/gpu/drm/amd/display/dc/core/dc_vm_helper.c new file mode 100644 index 000000000..cde8ed256 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/core/dc_vm_helper.c @@ -0,0 +1,79 @@ +/* + * 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; +#if defined(CONFIG_DRM_AMD_DC_DCN) + dc_z10_save_init(dc); +#endif + } + + 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); +} |