tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright (C) 2019 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
12 * in all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15 * OR 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) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
18 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20 */
21#ifndef __AMDGPU_UMC_H__
22#define __AMDGPU_UMC_H__
23
24/*
25 * (addr / 256) * 4096, the higher 26 bits in ErrorAddr
26 * is the index of 4KB block
27 */
28#define ADDR_OF_4KB_BLOCK(addr) (((addr) & ~0xffULL) << 4)
29/*
30 * (addr / 256) * 8192, the higher 26 bits in ErrorAddr
31 * is the index of 8KB block
32 */
33#define ADDR_OF_8KB_BLOCK(addr) (((addr) & ~0xffULL) << 5)
34/* channel index is the index of 256B block */
35#define ADDR_OF_256B_BLOCK(channel_index) ((channel_index) << 8)
36/* offset in 256B block */
37#define OFFSET_IN_256B_BLOCK(addr) ((addr) & 0xffULL)
38
39#define LOOP_UMC_INST(umc_inst) for ((umc_inst) = 0; (umc_inst) < adev->umc.umc_inst_num; (umc_inst)++)
40#define LOOP_UMC_CH_INST(ch_inst) for ((ch_inst) = 0; (ch_inst) < adev->umc.channel_inst_num; (ch_inst)++)
41#define LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) LOOP_UMC_INST((umc_inst)) LOOP_UMC_CH_INST((ch_inst))
42
43struct amdgpu_umc_ras_funcs {
44 void (*err_cnt_init)(struct amdgpu_device *adev);
45 int (*ras_late_init)(struct amdgpu_device *adev);
46 void (*ras_fini)(struct amdgpu_device *adev);
47 void (*query_ras_error_count)(struct amdgpu_device *adev,
48 void *ras_error_status);
49 void (*query_ras_error_address)(struct amdgpu_device *adev,
50 void *ras_error_status);
51 bool (*query_ras_poison_mode)(struct amdgpu_device *adev);
52 void (*ecc_info_query_ras_error_count)(struct amdgpu_device *adev,
53 void *ras_error_status);
54 void (*ecc_info_query_ras_error_address)(struct amdgpu_device *adev,
55 void *ras_error_status);
56};
57
58struct amdgpu_umc_funcs {
59 void (*init_registers)(struct amdgpu_device *adev);
60};
61
62struct amdgpu_umc {
63 /* max error count in one ras query call */
64 uint32_t max_ras_err_cnt_per_query;
65 /* number of umc channel instance with memory map register access */
66 uint32_t channel_inst_num;
67 /* number of umc instance with memory map register access */
68 uint32_t umc_inst_num;
69 /* UMC regiser per channel offset */
70 uint32_t channel_offs;
71 /* channel index table of interleaved memory */
72 const uint32_t *channel_idx_tbl;
73 struct ras_common_if *ras_if;
74
75 const struct amdgpu_umc_funcs *funcs;
76 const struct amdgpu_umc_ras_funcs *ras_funcs;
77};
78
79int amdgpu_umc_ras_late_init(struct amdgpu_device *adev);
80void amdgpu_umc_ras_fini(struct amdgpu_device *adev);
81int amdgpu_umc_poison_handler(struct amdgpu_device *adev,
82 void *ras_error_status,
83 bool reset);
84int amdgpu_umc_process_ecc_irq(struct amdgpu_device *adev,
85 struct amdgpu_irq_src *source,
86 struct amdgpu_iv_entry *entry);
87#endif