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 "gca/gfx_8_0_enum.h"
26 #include "gca/gfx_8_0_sh_mask.h"
27 #include "gca/gfx_8_0_enum.h"
28 #include "oss/oss_3_0_sh_mask.h"
29
30 static bool set_cache_memory_policy_vi(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 register_process_vi(struct device_queue_manager *dqm,
37 struct qcm_process_device *qpd);
38 static int initialize_cpsch_vi(struct device_queue_manager *dqm);
39 static void init_sdma_vm(struct device_queue_manager *dqm, struct queue *q,
40 struct qcm_process_device *qpd);
41
device_queue_manager_init_vi(struct device_queue_manager_asic_ops * ops)42 void device_queue_manager_init_vi(struct device_queue_manager_asic_ops *ops)
43 {
44 ops->set_cache_memory_policy = set_cache_memory_policy_vi;
45 ops->register_process = register_process_vi;
46 ops->initialize = initialize_cpsch_vi;
47 ops->init_sdma_vm = init_sdma_vm;
48 }
49
compute_sh_mem_bases_64bit(unsigned int top_address_nybble)50 static uint32_t compute_sh_mem_bases_64bit(unsigned int top_address_nybble)
51 {
52 /* In 64-bit mode, we can only control the top 3 bits of the LDS,
53 * scratch and GPUVM apertures.
54 * The hardware fills in the remaining 59 bits according to the
55 * following pattern:
56 * LDS: X0000000'00000000 - X0000001'00000000 (4GB)
57 * Scratch: X0000001'00000000 - X0000002'00000000 (4GB)
58 * GPUVM: Y0010000'00000000 - Y0020000'00000000 (1TB)
59 *
60 * (where X/Y is the configurable nybble with the low-bit 0)
61 *
62 * LDS and scratch will have the same top nybble programmed in the
63 * top 3 bits of SH_MEM_BASES.PRIVATE_BASE.
64 * GPUVM can have a different top nybble programmed in the
65 * top 3 bits of SH_MEM_BASES.SHARED_BASE.
66 * We don't bother to support different top nybbles
67 * for LDS/Scratch and GPUVM.
68 */
69
70 BUG_ON((top_address_nybble & 1) || top_address_nybble > 0xE ||
71 top_address_nybble == 0);
72
73 return top_address_nybble << 12 |
74 (top_address_nybble << 12) <<
75 SH_MEM_BASES__SHARED_BASE__SHIFT;
76 }
77
set_cache_memory_policy_vi(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)78 static bool set_cache_memory_policy_vi(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_CC :
90 MTYPE_NC;
91
92 ape1_mtype = (alternate_policy == cache_policy_coherent) ?
93 MTYPE_CC :
94 MTYPE_NC;
95
96 qpd->sh_mem_config = (qpd->sh_mem_config &
97 SH_MEM_CONFIG__ADDRESS_MODE_MASK) |
98 SH_MEM_ALIGNMENT_MODE_UNALIGNED <<
99 SH_MEM_CONFIG__ALIGNMENT_MODE__SHIFT |
100 default_mtype << SH_MEM_CONFIG__DEFAULT_MTYPE__SHIFT |
101 ape1_mtype << SH_MEM_CONFIG__APE1_MTYPE__SHIFT |
102 SH_MEM_CONFIG__PRIVATE_ATC_MASK;
103
104 return true;
105 }
106
register_process_vi(struct device_queue_manager * dqm,struct qcm_process_device * qpd)107 static int register_process_vi(struct device_queue_manager *dqm,
108 struct qcm_process_device *qpd)
109 {
110 struct kfd_process_device *pdd;
111 unsigned int temp;
112
113 BUG_ON(!dqm || !qpd);
114
115 pdd = qpd_to_pdd(qpd);
116
117 /* check if sh_mem_config register already configured */
118 if (qpd->sh_mem_config == 0) {
119 qpd->sh_mem_config =
120 SH_MEM_ALIGNMENT_MODE_UNALIGNED <<
121 SH_MEM_CONFIG__ALIGNMENT_MODE__SHIFT |
122 MTYPE_CC << SH_MEM_CONFIG__DEFAULT_MTYPE__SHIFT |
123 MTYPE_CC << SH_MEM_CONFIG__APE1_MTYPE__SHIFT |
124 SH_MEM_CONFIG__PRIVATE_ATC_MASK;
125
126 qpd->sh_mem_ape1_limit = 0;
127 qpd->sh_mem_ape1_base = 0;
128 }
129
130 if (qpd->pqm->process->is_32bit_user_mode) {
131 temp = get_sh_mem_bases_32(pdd);
132 qpd->sh_mem_bases = temp << SH_MEM_BASES__SHARED_BASE__SHIFT;
133 qpd->sh_mem_config |= SH_MEM_ADDRESS_MODE_HSA32 <<
134 SH_MEM_CONFIG__ADDRESS_MODE__SHIFT;
135 } else {
136 temp = get_sh_mem_bases_nybble_64(pdd);
137 qpd->sh_mem_bases = compute_sh_mem_bases_64bit(temp);
138 qpd->sh_mem_config |= SH_MEM_ADDRESS_MODE_HSA64 <<
139 SH_MEM_CONFIG__ADDRESS_MODE__SHIFT;
140 }
141
142 pr_debug("kfd: 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
init_sdma_vm(struct device_queue_manager * dqm,struct queue * q,struct qcm_process_device * qpd)148 static void init_sdma_vm(struct device_queue_manager *dqm, struct queue *q,
149 struct qcm_process_device *qpd)
150 {
151 uint32_t value = (1 << SDMA0_RLC0_VIRTUAL_ADDR__ATC__SHIFT);
152
153 if (q->process->is_32bit_user_mode)
154 value |= (1 << SDMA0_RLC0_VIRTUAL_ADDR__PTR32__SHIFT) |
155 get_sh_mem_bases_32(qpd_to_pdd(qpd));
156 else
157 value |= ((get_sh_mem_bases_nybble_64(qpd_to_pdd(qpd))) <<
158 SDMA0_RLC0_VIRTUAL_ADDR__SHARED_BASE__SHIFT) &
159 SDMA0_RLC0_VIRTUAL_ADDR__SHARED_BASE_MASK;
160
161 q->properties.sdma_vm_addr = value;
162 }
163
initialize_cpsch_vi(struct device_queue_manager * dqm)164 static int initialize_cpsch_vi(struct device_queue_manager *dqm)
165 {
166 return 0;
167 }
168