[Mesa-dev] [PATCH 4/5] r600g: use a clever alignment for index buffer uploads

[Constantine Kharlamov]

Ok, I can look it up. Is there some docs where I find the right alignment value?

On 28.03.2017 22:33, Marek Olšák wrote:
> BTW, I don't know if tcc_cache_line_size has the correct value for
> pre-GCN chips.
> 
> Marek
> 
> On Sun, Mar 26, 2017 at 5:36 PM, Constantine Kharlamov
> <Hi-Angel at yandex.ru> wrote:
>> Stolen from radeonsi
>>
>> Signed-off-by: Constantine Kharlamov <Hi-Angel at yandex.ru>
>> ---
>>  src/gallium/drivers/r600/r600_state_common.c | 3 ++-
>>  1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/src/gallium/drivers/r600/r600_state_common.c b/src/gallium/drivers/r600/r600_state_common.c
>> index 961e04e9db..5293c4034f 100644
>> --- a/src/gallium/drivers/r600/r600_state_common.c
>> +++ b/src/gallium/drivers/r600/r600_state_common.c
>> @@ -1766,7 +1766,8 @@ static void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info
>>                                                  info->instance_count > 1 ||
>>                                                  info->count*ib.index_size > 20)) {
>>                         u_upload_data(ctx->stream_uploader, 0,
>> -                                      info->count * ib.index_size, 256,
>> +                                     info->count * ib.index_size,
>> +                                     rctx->screen->b.info.tcc_cache_line_size,
>>                                       ib.user_buffer, &ib.offset, &ib.buffer);
>>                         ib.user_buffer = NULL;
>>                 }
>> --
>> 2.12.0
>>
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