From b6bad008db6e4bf59e079dd3b1178afd31055164 Mon Sep 17 00:00:00 2001
From: ChunyouTang <tangchunyou@icubecorp.cn>
Date: Thu, 8 Jul 2021 15:34:06 +0800
Subject: drm/panfrost:fix the exception name always "UNKNOWN"
Git-commit: 7dc924d7c595b21c084644be6d18014aae505b0f
Patch-mainline: v5.15-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
The exception_code in register is only 8 bits,So if
fault_status in panfrost_gpu_irq_handler() don't
(& 0xFF),it can't get correct exception reason.
and it's better to show all of the register value
to custom,so it's better fault_status don't (& 0xFF).
Signed-off-by: ChunyouTang <tangchunyou@icubecorp.cn>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210708073407.2015-1-tangchunyou@163.com
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/panfrost/panfrost_gpu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/panfrost/panfrost_gpu.c b/drivers/gpu/drm/panfrost/panfrost_gpu.c
index 26e4196b6c90..bbe628b306ee 100644
--- a/drivers/gpu/drm/panfrost/panfrost_gpu.c
+++ b/drivers/gpu/drm/panfrost/panfrost_gpu.c
@@ -33,7 +33,7 @@ static irqreturn_t panfrost_gpu_irq_handler(int irq, void *data)
address |= gpu_read(pfdev, GPU_FAULT_ADDRESS_LO);
dev_warn(pfdev->dev, "GPU Fault 0x%08x (%s) at 0x%016llx\n",
- fault_status & 0xFF, panfrost_exception_name(fault_status),
+ fault_status, panfrost_exception_name(fault_status & 0xFF),
address);
if (state & GPU_IRQ_MULTIPLE_FAULT)
--
2.38.1