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path: root/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c
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Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c207
1 files changed, 207 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c
new file mode 100644
index 000000000000..aad3c8b4c810
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c
@@ -0,0 +1,207 @@
+/*
+ * Copyright 2019 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#include "amdgpu.h"
+
+static int amdgpu_umc_do_page_retirement(struct amdgpu_device *adev,
+ void *ras_error_status,
+ struct amdgpu_iv_entry *entry,
+ bool reset)
+{
+ struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status;
+ struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
+ int ret = 0;
+
+ kgd2kfd_set_sram_ecc_flag(adev->kfd.dev);
+ ret = amdgpu_dpm_get_ecc_info(adev, (void *)&(con->umc_ecc));
+ if (ret == -EOPNOTSUPP) {
+ if (adev->umc.ras && adev->umc.ras->ras_block.hw_ops &&
+ adev->umc.ras->ras_block.hw_ops->query_ras_error_count)
+ adev->umc.ras->ras_block.hw_ops->query_ras_error_count(adev, ras_error_status);
+
+ if (adev->umc.ras && adev->umc.ras->ras_block.hw_ops &&
+ adev->umc.ras->ras_block.hw_ops->query_ras_error_address &&
+ adev->umc.max_ras_err_cnt_per_query) {
+ err_data->err_addr =
+ kcalloc(adev->umc.max_ras_err_cnt_per_query,
+ sizeof(struct eeprom_table_record), GFP_KERNEL);
+
+ /* still call query_ras_error_address to clear error status
+ * even NOMEM error is encountered
+ */
+ if(!err_data->err_addr)
+ dev_warn(adev->dev, "Failed to alloc memory for "
+ "umc error address record!\n");
+
+ /* umc query_ras_error_address is also responsible for clearing
+ * error status
+ */
+ adev->umc.ras->ras_block.hw_ops->query_ras_error_address(adev, ras_error_status);
+ }
+ } else if (!ret) {
+ if (adev->umc.ras &&
+ adev->umc.ras->ecc_info_query_ras_error_count)
+ adev->umc.ras->ecc_info_query_ras_error_count(adev, ras_error_status);
+
+ if (adev->umc.ras &&
+ adev->umc.ras->ecc_info_query_ras_error_address &&
+ adev->umc.max_ras_err_cnt_per_query) {
+ err_data->err_addr =
+ kcalloc(adev->umc.max_ras_err_cnt_per_query,
+ sizeof(struct eeprom_table_record), GFP_KERNEL);
+
+ /* still call query_ras_error_address to clear error status
+ * even NOMEM error is encountered
+ */
+ if(!err_data->err_addr)
+ dev_warn(adev->dev, "Failed to alloc memory for "
+ "umc error address record!\n");
+
+ /* umc query_ras_error_address is also responsible for clearing
+ * error status
+ */
+ adev->umc.ras->ecc_info_query_ras_error_address(adev, ras_error_status);
+ }
+ }
+
+ /* only uncorrectable error needs gpu reset */
+ if (err_data->ue_count) {
+ dev_info(adev->dev, "%ld uncorrectable hardware errors "
+ "detected in UMC block\n",
+ err_data->ue_count);
+
+ if ((amdgpu_bad_page_threshold != 0) &&
+ err_data->err_addr_cnt) {
+ amdgpu_ras_add_bad_pages(adev, err_data->err_addr,
+ err_data->err_addr_cnt);
+ amdgpu_ras_save_bad_pages(adev);
+
+ amdgpu_dpm_send_hbm_bad_pages_num(adev, con->eeprom_control.ras_num_recs);
+
+ if (con->update_channel_flag == true) {
+ amdgpu_dpm_send_hbm_bad_channel_flag(adev, con->eeprom_control.bad_channel_bitmap);
+ con->update_channel_flag = false;
+ }
+ }
+
+ if (reset)
+ amdgpu_ras_reset_gpu(adev);
+ }
+
+ kfree(err_data->err_addr);
+ return AMDGPU_RAS_SUCCESS;
+}
+
+int amdgpu_umc_poison_handler(struct amdgpu_device *adev,
+ void *ras_error_status,
+ bool reset)
+{
+ int ret;
+ struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status;
+ struct ras_common_if head = {
+ .block = AMDGPU_RAS_BLOCK__UMC,
+ };
+ struct ras_manager *obj = amdgpu_ras_find_obj(adev, &head);
+
+ ret =
+ amdgpu_umc_do_page_retirement(adev, ras_error_status, NULL, reset);
+
+ if (ret == AMDGPU_RAS_SUCCESS && obj) {
+ obj->err_data.ue_count += err_data->ue_count;
+ obj->err_data.ce_count += err_data->ce_count;
+ }
+
+ return ret;
+}
+
+int amdgpu_umc_process_ras_data_cb(struct amdgpu_device *adev,
+ void *ras_error_status,
+ struct amdgpu_iv_entry *entry)
+{
+ return amdgpu_umc_do_page_retirement(adev, ras_error_status, entry, true);
+}
+
+int amdgpu_umc_ras_late_init(struct amdgpu_device *adev, struct ras_common_if *ras_block)
+{
+ int r;
+
+ r = amdgpu_ras_block_late_init(adev, ras_block);
+ if (r)
+ return r;
+
+ if (amdgpu_ras_is_supported(adev, ras_block->block)) {
+ r = amdgpu_irq_get(adev, &adev->gmc.ecc_irq, 0);
+ if (r)
+ goto late_fini;
+ }
+
+ /* ras init of specific umc version */
+ if (adev->umc.ras &&
+ adev->umc.ras->err_cnt_init)
+ adev->umc.ras->err_cnt_init(adev);
+
+ return 0;
+
+late_fini:
+ amdgpu_ras_block_late_fini(adev, ras_block);
+ return r;
+}
+
+int amdgpu_umc_process_ecc_irq(struct amdgpu_device *adev,
+ struct amdgpu_irq_src *source,
+ struct amdgpu_iv_entry *entry)
+{
+ struct ras_common_if *ras_if = adev->umc.ras_if;
+ struct ras_dispatch_if ih_data = {
+ .entry = entry,
+ };
+
+ if (!ras_if)
+ return 0;
+
+ ih_data.head = *ras_if;
+
+ amdgpu_ras_interrupt_dispatch(adev, &ih_data);
+ return 0;
+}
+
+void amdgpu_umc_fill_error_record(struct ras_err_data *err_data,
+ uint64_t err_addr,
+ uint64_t retired_page,
+ uint32_t channel_index,
+ uint32_t umc_inst)
+{
+ struct eeprom_table_record *err_rec =
+ &err_data->err_addr[err_data->err_addr_cnt];
+
+ err_rec->address = err_addr;
+ /* page frame address is saved */
+ err_rec->retired_page = retired_page >> AMDGPU_GPU_PAGE_SHIFT;
+ err_rec->ts = (uint64_t)ktime_get_real_seconds();
+ err_rec->err_type = AMDGPU_RAS_EEPROM_ERR_NON_RECOVERABLE;
+ err_rec->cu = 0;
+ err_rec->mem_channel = channel_index;
+ err_rec->mcumc_id = umc_inst;
+
+ err_data->err_addr_cnt++;
+}