1 | // SPDX-License-Identifier: GPL-2.0 OR MIT |
2 | /* |
3 | * Copyright 2014-2022 Advanced Micro Devices, Inc. |
4 | * |
5 | * Permission is hereby granted, free of charge, to any person obtaining a |
6 | * copy of this software and associated documentation files (the "Software"), |
7 | * to deal in the Software without restriction, including without limitation |
8 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
9 | * and/or sell copies of the Software, and to permit persons to whom the |
10 | * Software is furnished to do so, subject to the following conditions: |
11 | * |
12 | * The above copyright notice and this permission notice shall be included in |
13 | * all copies or substantial portions of the Software. |
14 | * |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
18 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
19 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
20 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
21 | * OTHER DEALINGS IN THE SOFTWARE. |
22 | * |
23 | */ |
24 | |
25 | #include "kfd_device_queue_manager.h" |
26 | #include "cik_regs.h" |
27 | #include "oss/oss_2_4_sh_mask.h" |
28 | #include "gca/gfx_7_2_sh_mask.h" |
29 | |
30 | static bool set_cache_memory_policy_cik(struct device_queue_manager *dqm, |
31 | struct qcm_process_device *qpd, |
32 | enum cache_policy default_policy, |
33 | enum cache_policy alternate_policy, |
34 | void __user *alternate_aperture_base, |
35 | uint64_t alternate_aperture_size); |
36 | static int update_qpd_cik(struct device_queue_manager *dqm, |
37 | struct qcm_process_device *qpd); |
38 | static void init_sdma_vm(struct device_queue_manager *dqm, |
39 | struct queue *q, |
40 | struct qcm_process_device *qpd); |
41 | |
42 | void device_queue_manager_init_cik( |
43 | struct device_queue_manager_asic_ops *asic_ops) |
44 | { |
45 | asic_ops->set_cache_memory_policy = set_cache_memory_policy_cik; |
46 | asic_ops->update_qpd = update_qpd_cik; |
47 | asic_ops->init_sdma_vm = init_sdma_vm; |
48 | asic_ops->mqd_manager_init = mqd_manager_init_cik; |
49 | } |
50 | |
51 | static uint32_t compute_sh_mem_bases_64bit(unsigned int top_address_nybble) |
52 | { |
53 | /* In 64-bit mode, we can only control the top 3 bits of the LDS, |
54 | * scratch and GPUVM apertures. |
55 | * The hardware fills in the remaining 59 bits according to the |
56 | * following pattern: |
57 | * LDS: X0000000'00000000 - X0000001'00000000 (4GB) |
58 | * Scratch: X0000001'00000000 - X0000002'00000000 (4GB) |
59 | * GPUVM: Y0010000'00000000 - Y0020000'00000000 (1TB) |
60 | * |
61 | * (where X/Y is the configurable nybble with the low-bit 0) |
62 | * |
63 | * LDS and scratch will have the same top nybble programmed in the |
64 | * top 3 bits of SH_MEM_BASES.PRIVATE_BASE. |
65 | * GPUVM can have a different top nybble programmed in the |
66 | * top 3 bits of SH_MEM_BASES.SHARED_BASE. |
67 | * We don't bother to support different top nybbles |
68 | * for LDS/Scratch and GPUVM. |
69 | */ |
70 | |
71 | WARN_ON((top_address_nybble & 1) || top_address_nybble > 0xE || |
72 | top_address_nybble == 0); |
73 | |
74 | return PRIVATE_BASE(top_address_nybble << 12) | |
75 | SHARED_BASE(top_address_nybble << 12); |
76 | } |
77 | |
78 | static bool set_cache_memory_policy_cik(struct device_queue_manager *dqm, |
79 | struct qcm_process_device *qpd, |
80 | enum cache_policy default_policy, |
81 | enum cache_policy alternate_policy, |
82 | void __user *alternate_aperture_base, |
83 | uint64_t alternate_aperture_size) |
84 | { |
85 | uint32_t default_mtype; |
86 | uint32_t ape1_mtype; |
87 | |
88 | default_mtype = (default_policy == cache_policy_coherent) ? |
89 | MTYPE_NONCACHED : |
90 | MTYPE_CACHED; |
91 | |
92 | ape1_mtype = (alternate_policy == cache_policy_coherent) ? |
93 | MTYPE_NONCACHED : |
94 | MTYPE_CACHED; |
95 | |
96 | qpd->sh_mem_config = (qpd->sh_mem_config & PTR32) |
97 | | ALIGNMENT_MODE(SH_MEM_ALIGNMENT_MODE_UNALIGNED) |
98 | | DEFAULT_MTYPE(default_mtype) |
99 | | APE1_MTYPE(ape1_mtype); |
100 | |
101 | return true; |
102 | } |
103 | |
104 | static int update_qpd_cik(struct device_queue_manager *dqm, |
105 | struct qcm_process_device *qpd) |
106 | { |
107 | struct kfd_process_device *pdd; |
108 | unsigned int temp; |
109 | |
110 | pdd = qpd_to_pdd(qpd); |
111 | |
112 | /* check if sh_mem_config register already configured */ |
113 | if (qpd->sh_mem_config == 0) { |
114 | qpd->sh_mem_config = |
115 | ALIGNMENT_MODE(SH_MEM_ALIGNMENT_MODE_UNALIGNED) | |
116 | DEFAULT_MTYPE(MTYPE_NONCACHED) | |
117 | APE1_MTYPE(MTYPE_NONCACHED); |
118 | qpd->sh_mem_ape1_limit = 0; |
119 | qpd->sh_mem_ape1_base = 0; |
120 | } |
121 | |
122 | /* On dGPU we're always in GPUVM64 addressing mode with 64-bit |
123 | * aperture addresses. |
124 | */ |
125 | temp = get_sh_mem_bases_nybble_64(pdd); |
126 | qpd->sh_mem_bases = compute_sh_mem_bases_64bit(top_address_nybble: temp); |
127 | |
128 | pr_debug("is32bit process: %d sh_mem_bases nybble: 0x%X and register 0x%X\n" , |
129 | qpd->pqm->process->is_32bit_user_mode, temp, qpd->sh_mem_bases); |
130 | |
131 | return 0; |
132 | } |
133 | |
134 | static void init_sdma_vm(struct device_queue_manager *dqm, |
135 | struct queue *q, |
136 | struct qcm_process_device *qpd) |
137 | { |
138 | /* On dGPU we're always in GPUVM64 addressing mode with 64-bit |
139 | * aperture addresses. |
140 | */ |
141 | q->properties.sdma_vm_addr = |
142 | ((get_sh_mem_bases_nybble_64(qpd_to_pdd(qpd))) << |
143 | SDMA0_RLC0_VIRTUAL_ADDR__SHARED_BASE__SHIFT) & |
144 | SDMA0_RLC0_VIRTUAL_ADDR__SHARED_BASE_MASK; |
145 | } |
146 | |