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50dcfe1637
The ecc init, handling for the fb unit is refactored to improve reusability
for nvgpu-next.
The following changes have been done:
- fb.ecc:
This is a new subunit within fb and contains the following functions:
- init: Moved from fb.fb_ecc_init.
- free: Moved from fb.fb_ecc_free.
- l2tlb_error_mask: Fetch bit mask for corrected, uncorrected errors supported
by the unit.
- fb.intr:
This unit has been updated to include the following ecc interrupt, error
handlers:
- handle_ecc: Top level interrupt handler for fb ecc errors.
- handle_ecc_l2tlb: Handle errors within l2tlb memory.
- handle_ecc_hubtlb: Handle errors within hubtlb memory.
- handle_ecc_fillunit: Handle errors within fillunit memory
Jira: NVGPU-5032
Change-Id: I1a26c1823eb992e0e0175250b969f1186dff6e62
Signed-off-by: Antony Clince Alex <aalex@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2333271
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
129 lines
3.0 KiB
C
129 lines
3.0 KiB
C
/*
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* Copyright (c) 2018-2020, NVIDIA CORPORATION. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <nvgpu/gk20a.h>
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#include <nvgpu/gr/gr_ecc.h>
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#include <nvgpu/ltc.h>
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void nvgpu_ecc_stat_add(struct gk20a *g, struct nvgpu_ecc_stat *stat)
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{
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struct nvgpu_ecc *ecc = &g->ecc;
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nvgpu_init_list_node(&stat->node);
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nvgpu_list_add_tail(&stat->node, &ecc->stats_list);
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ecc->stats_count = nvgpu_safe_add_s32(ecc->stats_count, 1);
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}
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int nvgpu_ecc_counter_init(struct gk20a *g,
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struct nvgpu_ecc_stat **stat, const char *name)
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{
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struct nvgpu_ecc_stat *stats;
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stats = nvgpu_kzalloc(g, sizeof(*stats));
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if (stats == NULL) {
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return -ENOMEM;
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}
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(void)strncpy(stats->name, name, NVGPU_ECC_STAT_NAME_MAX_SIZE - 1U);
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nvgpu_ecc_stat_add(g, stats);
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*stat = stats;
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return 0;
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}
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/* release all ecc_stat */
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void nvgpu_ecc_free(struct gk20a *g)
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{
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struct nvgpu_ecc *ecc = &g->ecc;
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nvgpu_gr_ecc_free(g);
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nvgpu_ltc_ecc_free(g);
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if (g->ops.fb.ecc.free != NULL) {
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g->ops.fb.ecc.free(g);
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}
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#ifdef CONFIG_NVGPU_DGPU
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if (g->ops.fb.fbpa_ecc_free != NULL) {
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g->ops.fb.fbpa_ecc_free(g);
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}
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#endif
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if (g->ops.pmu.ecc_free != NULL) {
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g->ops.pmu.ecc_free(g);
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}
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(void)memset(ecc, 0, sizeof(*ecc));
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}
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int nvgpu_ecc_init_support(struct gk20a *g)
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{
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struct nvgpu_ecc *ecc = &g->ecc;
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if (ecc->initialized) {
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return 0;
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}
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nvgpu_init_list_node(&ecc->stats_list);
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return 0;
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}
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/**
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* Note that this function is to be called after all units requiring ecc stats
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* have added entries to ecc->stats_list.
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*/
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int nvgpu_ecc_finalize_support(struct gk20a *g)
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{
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#ifdef CONFIG_NVGPU_SYSFS
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int err;
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#endif
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if (g->ecc.initialized) {
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return 0;
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}
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#ifdef CONFIG_NVGPU_SYSFS
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err = nvgpu_ecc_sysfs_init(g);
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if (err != 0) {
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nvgpu_ecc_free(g);
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return err;
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}
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#endif
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g->ecc.initialized = true;
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return 0;
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}
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void nvgpu_ecc_remove_support(struct gk20a *g)
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{
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if (!g->ecc.initialized) {
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return;
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}
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#ifdef CONFIG_NVGPU_SYSFS
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nvgpu_ecc_sysfs_remove(g);
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#endif
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nvgpu_ecc_free(g);
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}
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