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msm: eva: Add SSR counter

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Support configurable number of SSR tolerance before calling
BUG_ON in SMMU fault scenario.

Change-Id: I19dabbeaa1cf5be86f42a6ace62ef5da12743e79
Signed-off-by: George Shen <sqiao@codeaurora.org>
This commit is contained in:
George Shen
2021-07-21 17:30:08 -07:00
parent 30223d90a7
commit 72eb20af3d
10 changed files with 256 additions and 66 deletions
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15
msm/eva/msm_cvp_common.c
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@@ -670,7 +670,7 @@ static void handle_sys_error(enum hal_command_response cmd, void *data)
}
if (!core->trigger_ssr)
msm_cvp_print_inst_bufs(inst);
msm_cvp_print_inst_bufs(inst, false);
}
/* handle the hw error before core released to get full debug info */
@@ -1036,7 +1036,6 @@ static int msm_comm_init_core(struct msm_cvp_inst *inst)
goto fail_core_init;
}
core->state = CVP_CORE_INIT;
core->smmu_fault_handled = false;
core->trigger_ssr = false;
core_already_inited:
@@ -1304,6 +1303,7 @@ int msm_cvp_comm_try_state(struct msm_cvp_inst *inst, int state)
int msm_cvp_noc_error_info(struct msm_cvp_core *core)
{
struct cvp_hfi_device *hdev;
static u32 last_fault_count = 0;
if (!core || !core->device) {
dprintk(CVP_WARN, "%s: Invalid parameters: %pK\n",
@@ -1311,13 +1311,20 @@ int msm_cvp_noc_error_info(struct msm_cvp_core *core)
return -EINVAL;
}
if (!core->smmu_fault_handled)
if (!core->smmu_fault_count ||
core->smmu_fault_count == last_fault_count)
return 0;
last_fault_count = core->smmu_fault_count;
core->ssr_count++;
dprintk(CVP_ERR, "cvp ssr count %d %d\n", core->ssr_count,
core->resources.max_ssr_allowed);
hdev = core->device;
call_hfi_op(hdev, noc_error_info, hdev->hfi_device_data);
BUG_ON(!core->resources.non_fatal_pagefaults);
if (core->ssr_count >= core->resources.max_ssr_allowed)
BUG_ON(!core->resources.non_fatal_pagefaults);
return 0;
}