[Mesa-dev] [PATCH] radv: drop wrong initialization of COMPUTE_RESOURCE_LIMITS

[Marek Olšák]

Note that WAVES_PER_SH should be 0x3ff on the compute ring for the
ring priorities to be applied. I don't know if you need to do the same
thing for the gfx ring. You can ask Andres for more info.

Marek
On Tue, Aug 14, 2018 at 12:10 PM Samuel Pitoiset
<samuel.pitoiset at gmail.com> wrote:
>
> The last parameter of radeon_set_sh_reg_seq() is the number of
> dwords to emit. We were lucky because WAVES_PER_SH(0x3) is 3 but
> it was initialized to 0.
>
> COMPUTE_RESOURCE_LIMITS is correctly set when generating
> compute pipelines, so we don't need to initialize it.
>
> Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
> ---
>  src/amd/vulkan/si_cmd_buffer.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/src/amd/vulkan/si_cmd_buffer.c b/src/amd/vulkan/si_cmd_buffer.c
> index 2337036c67..2cfa7f4c2c 100644
> --- a/src/amd/vulkan/si_cmd_buffer.c
> +++ b/src/amd/vulkan/si_cmd_buffer.c
> @@ -88,9 +88,7 @@ si_emit_compute(struct radv_physical_device *physical_device,
>         radeon_emit(cs, 0);
>         radeon_emit(cs, 0);
>
> -       radeon_set_sh_reg_seq(cs, R_00B854_COMPUTE_RESOURCE_LIMITS,
> -                             S_00B854_WAVES_PER_SH(0x3));
> -       radeon_emit(cs, 0);
> +       radeon_set_sh_reg_seq(cs, R_00B858_COMPUTE_STATIC_THREAD_MGMT_SE0, 2);
>         /* R_00B858_COMPUTE_STATIC_THREAD_MGMT_SE0 / SE1 */
>         radeon_emit(cs, S_00B858_SH0_CU_EN(0xffff) | S_00B858_SH1_CU_EN(0xffff));
>         radeon_emit(cs, S_00B85C_SH0_CU_EN(0xffff) | S_00B85C_SH1_CU_EN(0xffff));
> --
> 2.18.0
>
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