Reviewed-by: Ilia Mirkin <imir...@alum.mit.edu>
On Thu, Nov 16, 2017 at 9:05 PM, Dave Airlie <airl...@gmail.com> wrote:
> From: Dave Airlie <airl...@redhat.com>
>
> There is no need to have these overlap if we support hw atomics.
>
> Signed-off-by: Dave Airlie <airl...@redhat.com>
> ---
> src/mesa/state_tracker/st_atom_storagebuf.c | 8 +++++---
> src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 14 ++++++++------
> 2 files changed, 13 insertions(+), 9 deletions(-)
>
> diff --git a/src/mesa/state_tracker/st_atom_storagebuf.c
> b/src/mesa/state_tracker/st_atom_storagebuf.c
> index a31a8fd..2c55af3 100644
> --- a/src/mesa/state_tracker/st_atom_storagebuf.c
> +++ b/src/mesa/state_tracker/st_atom_storagebuf.c
> @@ -47,12 +47,14 @@ st_bind_ssbos(struct st_context *st, struct gl_program
> *prog,
> unsigned i;
> struct pipe_shader_buffer buffers[MAX_SHADER_STORAGE_BUFFERS];
> struct gl_program_constants *c;
> -
> + int buffer_base;
> if (!prog || !st->pipe->set_shader_buffers)
> return;
>
> c = &st->ctx->Const.Program[prog->info.stage];
>
> + buffer_base = st->has_hw_atomics ? 0 : c->MaxAtomicBuffers;
> +
> for (i = 0; i < prog->info.num_ssbos; i++) {
> struct gl_buffer_binding *binding;
> struct st_buffer_object *st_obj;
> @@ -79,13 +81,13 @@ st_bind_ssbos(struct st_context *st, struct gl_program
> *prog,
> sb->buffer_size = 0;
> }
> }
> - st->pipe->set_shader_buffers(st->pipe, shader_type, c->MaxAtomicBuffers,
> + st->pipe->set_shader_buffers(st->pipe, shader_type, buffer_base,
> prog->info.num_ssbos, buffers);
> /* clear out any stale shader buffers */
> if (prog->info.num_ssbos < c->MaxShaderStorageBlocks)
> st->pipe->set_shader_buffers(
> st->pipe, shader_type,
> - c->MaxAtomicBuffers + prog->info.num_ssbos,
> + buffer_base + prog->info.num_ssbos,
> c->MaxShaderStorageBlocks - prog->info.num_ssbos,
> NULL);
> }
> diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
> b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
> index 93b5cc7..a863eb2 100644
> --- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
> +++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
> @@ -2128,10 +2128,10 @@ glsl_to_tgsi_visitor::visit_expression(ir_expression*
> ir, st_src_reg *op)
>
> case ir_unop_get_buffer_size: {
> ir_constant *const_offset = ir->operands[0]->as_constant();
> + int buf_base = ctx->st->has_hw_atomics ? 0 :
> ctx->Const.Program[shader->Stage].MaxAtomicBuffers;
> st_src_reg buffer(
> PROGRAM_BUFFER,
> - ctx->Const.Program[shader->Stage].MaxAtomicBuffers +
> - (const_offset ? const_offset->value.u[0] : 0),
> + buf_base + (const_offset ? const_offset->value.u[0] : 0),
> GLSL_TYPE_UINT);
> if (!const_offset) {
> buffer.reladdr = ralloc(mem_ctx, st_src_reg);
> @@ -3352,11 +3352,10 @@ glsl_to_tgsi_visitor::visit_ssbo_intrinsic(ir_call
> *ir)
> ir_rvalue *offset = ((ir_instruction *)param)->as_rvalue();
>
> ir_constant *const_block = block->as_constant();
> -
> + int buf_base = st_context(ctx)->has_hw_atomics ? 0 :
> ctx->Const.Program[shader->Stage].MaxAtomicBuffers;
> st_src_reg buffer(
> PROGRAM_BUFFER,
> - ctx->Const.Program[shader->Stage].MaxAtomicBuffers +
> - (const_block ? const_block->value.u[0] : 0),
> + buf_base + (const_block ? const_block->value.u[0] : 0),
> GLSL_TYPE_UINT);
>
> if (!const_block) {
> @@ -6581,7 +6580,10 @@ st_translate_program(
>
> assert(prog->info.num_ssbos <= frag_const->MaxShaderStorageBlocks);
> for (i = 0; i < prog->info.num_ssbos; i++) {
> - unsigned index = frag_const->MaxAtomicBuffers + i;
> + unsigned index = i;
> + if (!st_context(ctx)->has_hw_atomics)
> + index += frag_const->MaxAtomicBuffers;
> +
> t->buffers[index] = ureg_DECL_buffer(ureg, index, false);
> }
> }
> --
> 2.9.5
>
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> mesa-dev@lists.freedesktop.org
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