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SubjectRe: [PATCH v3] drm/panfrost:fix the exception name always "UNKNOWN"
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On 08/07/2021 08:34, ChunyouTang wrote:
> From: ChunyouTang <tangchunyou@icubecorp.cn>
>
> 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>

Boris's change has actually modified panfrost_exception_name() to no
longer take pfdev in drm-misc-next. However, I'll just fix this up when
I apply it.

Thanks,

Steve

> ---
> 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 1fffb6a0b24f..d2d287bbf4e7 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(pfdev, fault_status & 0xFF),
> + fault_status, panfrost_exception_name(pfdev, fault_status & 0xFF),
> address);
>
> if (state & GPU_IRQ_MULTIPLE_FAULT)
>

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