[PATCH] tests/amdgpu: update bad length case

[vitaly prosyak]

The change look good to me.

Reviewed-by: Vitaly Prosyak vitaly.prosyak at amd.com

On 2024-08-06 21:06, Liang, Prike wrote:
> [AMD Official Use Only - AMD Internal Distribution Only]
>
> Ping for the patch.
>
> Thanks,
> Prike
>
>> -----Original Message-----
>> From: Liang, Prike <Prike.Liang at amd.com>
>> Sent: Thursday, August 1, 2024 6:59 PM
>> To: igt-dev at lists.freedesktop.org
>> Cc: Prosyak, Vitaly <Vitaly.Prosyak at amd.com>; Zhang, Jesse(Jie)
>> <Jesse.Zhang at amd.com>; Deucher, Alexander
>> <Alexander.Deucher at amd.com>; Liang, Prike <Prike.Liang at amd.com>
>> Subject: [PATCH] tests/amdgpu: update bad length case
>>
>> In the bad length case, when the header length has more than 4dwords than
>> packet stream length then CPFW will pending on the stream data and raise a
>> CP halt error which requires do the pipe reset. As to the orignal case of
>> header length is smaller than PM4 stream length then the PM4 stream data
>> may will create a bad opcode error which only requires the queue reset. So
>> for testing the pipe reset need to update the header length bigger than the
>> PM4 stream data length.
>>
>> Signed-off-by: Prike Liang <Prike.Liang at amd.com>
>> ---
>>  lib/amdgpu/amd_ip_blocks.c | 9 +++++++--
>>  1 file changed, 7 insertions(+), 2 deletions(-)
>>
>> diff --git a/lib/amdgpu/amd_ip_blocks.c b/lib/amdgpu/amd_ip_blocks.c index
>> f675b97dd..3ffacc065 100644
>> --- a/lib/amdgpu/amd_ip_blocks.c
>> +++ b/lib/amdgpu/amd_ip_blocks.c
>> @@ -189,7 +189,7 @@ gfx_ring_bad_write_linear(const struct
>> amdgpu_ip_funcs *func,
>>                     const struct amdgpu_ring_context *ring_context,
>>                     uint32_t *pm4_dw, unsigned int cmd_error)  {
>> -     uint32_t i, j;
>> +     uint32_t i, j, stream_length;
>>
>>       i = 0;
>>       j = 0;
>> @@ -198,6 +198,11 @@ gfx_ring_bad_write_linear(const struct
>> amdgpu_ip_funcs *func,
>>         * But the range applies to all asics.
>>         * 0xcb-0xcf, 0xd2-0xef, 0xf1-0xfb
>>         */
>> +     if (cmd_error == CMD_STREAM_EXEC_INVALID_PACKET_LENGTH)
>> +             stream_length = ring_context->write_length / 16;
>> +     else
>> +             stream_length = ring_context->write_length;
>> +
>>       if (cmd_error == CMD_STREAM_EXEC_INVALID_OPCODE)
>>               ring_context->pm4[i++] = PACKET3(0xf2, 2 +  ring_context-
>>> write_length);
>>       else if (cmd_error ==
>> CMD_STREAM_EXEC_INVALID_PACKET_LENGTH)
>> @@ -223,7 +228,7 @@ gfx_ring_bad_write_linear(const struct
>> amdgpu_ip_funcs *func,
>>               ring_context->pm4[i++] = upper_32_bits(ring_context-
>>> bo_mc);
>>       }
>>
>> -     while (j++ < ring_context->write_length)
>> +     while (j++ < stream_length)
>>               ring_context->pm4[i++] = func->deadbeaf;
>>       *pm4_dw = i;
>>       return i;
>> --
>> 2.34.1
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