1 /*
2 * Copyright 2014 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 */
23
24 #include "kfd_device_queue_manager.h"
25 #include "cik_regs.h"
26 #include "oss/oss_2_4_sh_mask.h"
27 #include "gca/gfx_7_2_sh_mask.h"
28
29 static bool set_cache_memory_policy_cik(struct device_queue_manager *dqm,
30 struct qcm_process_device *qpd,
31 enum cache_policy default_policy,
32 enum cache_policy alternate_policy,
33 void __user *alternate_aperture_base,
34 uint64_t alternate_aperture_size);
35 static int update_qpd_cik(struct device_queue_manager *dqm,
36 struct qcm_process_device *qpd);
37 static int update_qpd_cik_hawaii(struct device_queue_manager *dqm,
38 struct qcm_process_device *qpd);
39 static void init_sdma_vm(struct device_queue_manager *dqm, struct queue *q,
40 struct qcm_process_device *qpd);
41 static void init_sdma_vm_hawaii(struct device_queue_manager *dqm,
42 struct queue *q,
43 struct qcm_process_device *qpd);
44
device_queue_manager_init_cik(struct device_queue_manager_asic_ops * asic_ops)45 void device_queue_manager_init_cik(
46 struct device_queue_manager_asic_ops *asic_ops)
47 {
48 asic_ops->set_cache_memory_policy = set_cache_memory_policy_cik;
49 asic_ops->update_qpd = update_qpd_cik;
50 asic_ops->init_sdma_vm = init_sdma_vm;
51 }
52
device_queue_manager_init_cik_hawaii(struct device_queue_manager_asic_ops * asic_ops)53 void device_queue_manager_init_cik_hawaii(
54 struct device_queue_manager_asic_ops *asic_ops)
55 {
56 asic_ops->set_cache_memory_policy = set_cache_memory_policy_cik;
57 asic_ops->update_qpd = update_qpd_cik_hawaii;
58 asic_ops->init_sdma_vm = init_sdma_vm_hawaii;
59 }
60
compute_sh_mem_bases_64bit(unsigned int top_address_nybble)61 static uint32_t compute_sh_mem_bases_64bit(unsigned int top_address_nybble)
62 {
63 /* In 64-bit mode, we can only control the top 3 bits of the LDS,
64 * scratch and GPUVM apertures.
65 * The hardware fills in the remaining 59 bits according to the
66 * following pattern:
67 * LDS: X0000000'00000000 - X0000001'00000000 (4GB)
68 * Scratch: X0000001'00000000 - X0000002'00000000 (4GB)
69 * GPUVM: Y0010000'00000000 - Y0020000'00000000 (1TB)
70 *
71 * (where X/Y is the configurable nybble with the low-bit 0)
72 *
73 * LDS and scratch will have the same top nybble programmed in the
74 * top 3 bits of SH_MEM_BASES.PRIVATE_BASE.
75 * GPUVM can have a different top nybble programmed in the
76 * top 3 bits of SH_MEM_BASES.SHARED_BASE.
77 * We don't bother to support different top nybbles
78 * for LDS/Scratch and GPUVM.
79 */
80
81 WARN_ON((top_address_nybble & 1) || top_address_nybble > 0xE ||
82 top_address_nybble == 0);
83
84 return PRIVATE_BASE(top_address_nybble << 12) |
85 SHARED_BASE(top_address_nybble << 12);
86 }
87
set_cache_memory_policy_cik(struct device_queue_manager * dqm,struct qcm_process_device * qpd,enum cache_policy default_policy,enum cache_policy alternate_policy,void __user * alternate_aperture_base,uint64_t alternate_aperture_size)88 static bool set_cache_memory_policy_cik(struct device_queue_manager *dqm,
89 struct qcm_process_device *qpd,
90 enum cache_policy default_policy,
91 enum cache_policy alternate_policy,
92 void __user *alternate_aperture_base,
93 uint64_t alternate_aperture_size)
94 {
95 uint32_t default_mtype;
96 uint32_t ape1_mtype;
97
98 default_mtype = (default_policy == cache_policy_coherent) ?
99 MTYPE_NONCACHED :
100 MTYPE_CACHED;
101
102 ape1_mtype = (alternate_policy == cache_policy_coherent) ?
103 MTYPE_NONCACHED :
104 MTYPE_CACHED;
105
106 qpd->sh_mem_config = (qpd->sh_mem_config & PTR32)
107 | ALIGNMENT_MODE(SH_MEM_ALIGNMENT_MODE_UNALIGNED)
108 | DEFAULT_MTYPE(default_mtype)
109 | APE1_MTYPE(ape1_mtype);
110
111 return true;
112 }
113
update_qpd_cik(struct device_queue_manager * dqm,struct qcm_process_device * qpd)114 static int update_qpd_cik(struct device_queue_manager *dqm,
115 struct qcm_process_device *qpd)
116 {
117 struct kfd_process_device *pdd;
118 unsigned int temp;
119
120 pdd = qpd_to_pdd(qpd);
121
122 /* check if sh_mem_config register already configured */
123 if (qpd->sh_mem_config == 0) {
124 qpd->sh_mem_config =
125 ALIGNMENT_MODE(SH_MEM_ALIGNMENT_MODE_UNALIGNED) |
126 DEFAULT_MTYPE(MTYPE_NONCACHED) |
127 APE1_MTYPE(MTYPE_NONCACHED);
128 qpd->sh_mem_ape1_limit = 0;
129 qpd->sh_mem_ape1_base = 0;
130 }
131
132 if (qpd->pqm->process->is_32bit_user_mode) {
133 temp = get_sh_mem_bases_32(pdd);
134 qpd->sh_mem_bases = SHARED_BASE(temp);
135 qpd->sh_mem_config |= PTR32;
136 } else {
137 temp = get_sh_mem_bases_nybble_64(pdd);
138 qpd->sh_mem_bases = compute_sh_mem_bases_64bit(temp);
139 qpd->sh_mem_config |= 1 << SH_MEM_CONFIG__PRIVATE_ATC__SHIFT;
140 }
141
142 pr_debug("is32bit process: %d sh_mem_bases nybble: 0x%X and register 0x%X\n",
143 qpd->pqm->process->is_32bit_user_mode, temp, qpd->sh_mem_bases);
144
145 return 0;
146 }
147
update_qpd_cik_hawaii(struct device_queue_manager * dqm,struct qcm_process_device * qpd)148 static int update_qpd_cik_hawaii(struct device_queue_manager *dqm,
149 struct qcm_process_device *qpd)
150 {
151 struct kfd_process_device *pdd;
152 unsigned int temp;
153
154 pdd = qpd_to_pdd(qpd);
155
156 /* check if sh_mem_config register already configured */
157 if (qpd->sh_mem_config == 0) {
158 qpd->sh_mem_config =
159 ALIGNMENT_MODE(SH_MEM_ALIGNMENT_MODE_UNALIGNED) |
160 DEFAULT_MTYPE(MTYPE_NONCACHED) |
161 APE1_MTYPE(MTYPE_NONCACHED);
162 qpd->sh_mem_ape1_limit = 0;
163 qpd->sh_mem_ape1_base = 0;
164 }
165
166 /* On dGPU we're always in GPUVM64 addressing mode with 64-bit
167 * aperture addresses.
168 */
169 temp = get_sh_mem_bases_nybble_64(pdd);
170 qpd->sh_mem_bases = compute_sh_mem_bases_64bit(temp);
171
172 pr_debug("is32bit process: %d sh_mem_bases nybble: 0x%X and register 0x%X\n",
173 qpd->pqm->process->is_32bit_user_mode, temp, qpd->sh_mem_bases);
174
175 return 0;
176 }
177
init_sdma_vm(struct device_queue_manager * dqm,struct queue * q,struct qcm_process_device * qpd)178 static void init_sdma_vm(struct device_queue_manager *dqm, struct queue *q,
179 struct qcm_process_device *qpd)
180 {
181 uint32_t value = (1 << SDMA0_RLC0_VIRTUAL_ADDR__ATC__SHIFT);
182
183 if (q->process->is_32bit_user_mode)
184 value |= (1 << SDMA0_RLC0_VIRTUAL_ADDR__PTR32__SHIFT) |
185 get_sh_mem_bases_32(qpd_to_pdd(qpd));
186 else
187 value |= ((get_sh_mem_bases_nybble_64(qpd_to_pdd(qpd))) <<
188 SDMA0_RLC0_VIRTUAL_ADDR__SHARED_BASE__SHIFT) &
189 SDMA0_RLC0_VIRTUAL_ADDR__SHARED_BASE_MASK;
190
191 q->properties.sdma_vm_addr = value;
192 }
193
init_sdma_vm_hawaii(struct device_queue_manager * dqm,struct queue * q,struct qcm_process_device * qpd)194 static void init_sdma_vm_hawaii(struct device_queue_manager *dqm,
195 struct queue *q,
196 struct qcm_process_device *qpd)
197 {
198 /* On dGPU we're always in GPUVM64 addressing mode with 64-bit
199 * aperture addresses.
200 */
201 q->properties.sdma_vm_addr =
202 ((get_sh_mem_bases_nybble_64(qpd_to_pdd(qpd))) <<
203 SDMA0_RLC0_VIRTUAL_ADDR__SHARED_BASE__SHIFT) &
204 SDMA0_RLC0_VIRTUAL_ADDR__SHARED_BASE_MASK;
205 }
206
