[Mesa-dev] [PATCH 2/7] nir: Add a nir_lower_io flag for using load_interpolated_input intrins.
Jason Ekstrand
jason at jlekstrand.net
Tue Jul 19 19:57:23 UTC 2016
On Mon, Jul 18, 2016 at 10:00 PM, Chris Forbes <chrisf at ijw.co.nz> wrote:
> Seems a little unfortunate to add a random bool to this interface which is
> otherwise fairly descriptive, but OK.
>
I agree that this is a bit unfortunate. I was going to suggest adding a
flags parameter and a bitfield union but a flags parameter for a single
bool is also kind-of stupid. I vote we keep it as-is and make it a flags
parameter once we have 2 bools.
--Jason
>
> On Tue, Jul 19, 2016 at 8:26 AM, Kenneth Graunke <kenneth at whitecape.org>
> wrote:
>
>> While my intention is that the new intrinsics should be usable by all
>> drivers, we need to make them optional until all drivers switch.
>>
>> This doesn't do anything yet, but I added it as a separate patch to
>> keep the interface churn separate for easier review.
>>
>> Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
>> ---
>> src/compiler/nir/nir.h | 3 ++-
>> src/compiler/nir/nir_lower_io.c | 15 +++++++++++----
>> src/gallium/drivers/freedreno/ir3/ir3_cmdline.c | 2 +-
>> src/mesa/drivers/dri/i965/brw_blorp.c | 2 +-
>> src/mesa/drivers/dri/i965/brw_nir.c | 18 +++++++++---------
>> src/mesa/drivers/dri/i965/brw_program.c | 4 ++--
>> src/mesa/state_tracker/st_glsl_to_nir.cpp | 2 +-
>> 7 files changed, 27 insertions(+), 19 deletions(-)
>>
>> diff --git a/src/compiler/nir/nir.h b/src/compiler/nir/nir.h
>> index ac11998..e996e0e 100644
>> --- a/src/compiler/nir/nir.h
>> +++ b/src/compiler/nir/nir.h
>> @@ -2324,7 +2324,8 @@ void nir_assign_var_locations(struct exec_list
>> *var_list, unsigned *size,
>>
>> void nir_lower_io(nir_shader *shader,
>> nir_variable_mode modes,
>> - int (*type_size)(const struct glsl_type *));
>> + int (*type_size)(const struct glsl_type *),
>> + bool use_load_interpolated_input_intrinsics);
>> nir_src *nir_get_io_offset_src(nir_intrinsic_instr *instr);
>> nir_src *nir_get_io_vertex_index_src(nir_intrinsic_instr *instr);
>>
>> diff --git a/src/compiler/nir/nir_lower_io.c
>> b/src/compiler/nir/nir_lower_io.c
>> index b05a73f..aa8a517 100644
>> --- a/src/compiler/nir/nir_lower_io.c
>> +++ b/src/compiler/nir/nir_lower_io.c
>> @@ -39,6 +39,7 @@ struct lower_io_state {
>> void *mem_ctx;
>> int (*type_size)(const struct glsl_type *type);
>> nir_variable_mode modes;
>> + bool use_interpolated_input;
>> };
>>
>> void
>> @@ -394,7 +395,8 @@ nir_lower_io_block(nir_block *block,
>> static void
>> nir_lower_io_impl(nir_function_impl *impl,
>> nir_variable_mode modes,
>> - int (*type_size)(const struct glsl_type *))
>> + int (*type_size)(const struct glsl_type *),
>> + bool use_interpolated_input)
>> {
>> struct lower_io_state state;
>>
>> @@ -402,6 +404,7 @@ nir_lower_io_impl(nir_function_impl *impl,
>> state.mem_ctx = ralloc_parent(impl);
>> state.modes = modes;
>> state.type_size = type_size;
>> + state.use_interpolated_input = use_interpolated_input;
>>
>> nir_foreach_block(block, impl) {
>> nir_lower_io_block(block, &state);
>> @@ -413,11 +416,15 @@ nir_lower_io_impl(nir_function_impl *impl,
>>
>> void
>> nir_lower_io(nir_shader *shader, nir_variable_mode modes,
>> - int (*type_size)(const struct glsl_type *))
>> + int (*type_size)(const struct glsl_type *),
>> + bool use_interpolated_input)
>> {
>> nir_foreach_function(function, shader) {
>> - if (function->impl)
>> - nir_lower_io_impl(function->impl, modes, type_size);
>> + if (function->impl) {
>> + nir_lower_io_impl(function->impl, modes, type_size,
>> + use_interpolated_input &&
>> + shader->stage == MESA_SHADER_FRAGMENT);
>> + }
>> }
>> }
>>
>> diff --git a/src/gallium/drivers/freedreno/ir3/ir3_cmdline.c
>> b/src/gallium/drivers/freedreno/ir3/ir3_cmdline.c
>> index 41532fc..a8a8c1b 100644
>> --- a/src/gallium/drivers/freedreno/ir3/ir3_cmdline.c
>> +++ b/src/gallium/drivers/freedreno/ir3/ir3_cmdline.c
>> @@ -93,7 +93,7 @@ load_glsl(unsigned num_files, char* const* files,
>> gl_shader_stage stage)
>> // TODO nir_assign_var_locations??
>>
>> NIR_PASS_V(nir, nir_lower_system_values);
>> - NIR_PASS_V(nir, nir_lower_io, nir_var_all, st_glsl_type_size);
>> + NIR_PASS_V(nir, nir_lower_io, nir_var_all, st_glsl_type_size,
>> false);
>> NIR_PASS_V(nir, nir_lower_samplers, prog);
>>
>> return nir;
>> diff --git a/src/mesa/drivers/dri/i965/brw_blorp.c
>> b/src/mesa/drivers/dri/i965/brw_blorp.c
>> index 282a5b2..0473cfe 100644
>> --- a/src/mesa/drivers/dri/i965/brw_blorp.c
>> +++ b/src/mesa/drivers/dri/i965/brw_blorp.c
>> @@ -209,7 +209,7 @@ brw_blorp_compile_nir_shader(struct brw_context *brw,
>> struct nir_shader *nir,
>> unsigned end = var->data.location +
>> nir_uniform_type_size(var->type);
>> nir->num_uniforms = MAX2(nir->num_uniforms, end);
>> }
>> - nir_lower_io(nir, nir_var_uniform, nir_uniform_type_size);
>> + nir_lower_io(nir, nir_var_uniform, nir_uniform_type_size, false);
>>
>> const unsigned *program =
>> brw_compile_fs(compiler, brw, mem_ctx, wm_key, &wm_prog_data, nir,
>> diff --git a/src/mesa/drivers/dri/i965/brw_nir.c
>> b/src/mesa/drivers/dri/i965/brw_nir.c
>> index 6c3e1d1..caf9fe0 100644
>> --- a/src/mesa/drivers/dri/i965/brw_nir.c
>> +++ b/src/mesa/drivers/dri/i965/brw_nir.c
>> @@ -204,7 +204,7 @@ brw_nir_lower_vs_inputs(nir_shader *nir,
>> * loaded as one vec4 or dvec4 per element (or matrix column),
>> depending on
>> * whether it is a double-precision type or not.
>> */
>> - nir_lower_io(nir, nir_var_shader_in, type_size_vs_input);
>> + nir_lower_io(nir, nir_var_shader_in, type_size_vs_input, false);
>>
>> /* This pass needs actual constants */
>> nir_opt_constant_folding(nir);
>> @@ -236,7 +236,7 @@ brw_nir_lower_vue_inputs(nir_shader *nir, bool
>> is_scalar,
>> }
>>
>> /* Inputs are stored in vec4 slots, so use type_size_vec4(). */
>> - nir_lower_io(nir, nir_var_shader_in, type_size_vec4);
>> + nir_lower_io(nir, nir_var_shader_in, type_size_vec4, false);
>>
>> if (is_scalar || nir->stage != MESA_SHADER_GEOMETRY) {
>> /* This pass needs actual constants */
>> @@ -261,7 +261,7 @@ brw_nir_lower_tes_inputs(nir_shader *nir, const
>> struct brw_vue_map *vue_map)
>> var->data.driver_location = var->data.location;
>> }
>>
>> - nir_lower_io(nir, nir_var_shader_in, type_size_vec4);
>> + nir_lower_io(nir, nir_var_shader_in, type_size_vec4, false);
>>
>> /* This pass needs actual constants */
>> nir_opt_constant_folding(nir);
>> @@ -284,7 +284,7 @@ brw_nir_lower_fs_inputs(nir_shader *nir)
>> {
>> nir_assign_var_locations(&nir->inputs, &nir->num_inputs,
>> VARYING_SLOT_VAR0,
>> type_size_scalar);
>> - nir_lower_io(nir, nir_var_shader_in, type_size_scalar);
>> + nir_lower_io(nir, nir_var_shader_in, type_size_scalar, false);
>> }
>>
>> void
>> @@ -295,11 +295,11 @@ brw_nir_lower_vue_outputs(nir_shader *nir,
>> nir_assign_var_locations(&nir->outputs, &nir->num_outputs,
>> VARYING_SLOT_VAR0,
>> type_size_scalar);
>> - nir_lower_io(nir, nir_var_shader_out, type_size_scalar);
>> + nir_lower_io(nir, nir_var_shader_out, type_size_scalar, false);
>> } else {
>> nir_foreach_variable(var, &nir->outputs)
>> var->data.driver_location = var->data.location;
>> - nir_lower_io(nir, nir_var_shader_out, type_size_vec4);
>> + nir_lower_io(nir, nir_var_shader_out, type_size_vec4, false);
>> }
>> }
>>
>> @@ -310,7 +310,7 @@ brw_nir_lower_tcs_outputs(nir_shader *nir, const
>> struct brw_vue_map *vue_map)
>> var->data.driver_location = var->data.location;
>> }
>>
>> - nir_lower_io(nir, nir_var_shader_out, type_size_vec4);
>> + nir_lower_io(nir, nir_var_shader_out, type_size_vec4, false);
>>
>> /* This pass needs actual constants */
>> nir_opt_constant_folding(nir);
>> @@ -333,7 +333,7 @@ brw_nir_lower_fs_outputs(nir_shader *nir)
>> {
>> nir_assign_var_locations(&nir->outputs, &nir->num_outputs,
>> FRAG_RESULT_DATA0, type_size_scalar);
>> - nir_lower_io(nir, nir_var_shader_out, type_size_scalar);
>> + nir_lower_io(nir, nir_var_shader_out, type_size_scalar, false);
>> }
>>
>> void
>> @@ -341,7 +341,7 @@ brw_nir_lower_cs_shared(nir_shader *nir)
>> {
>> nir_assign_var_locations(&nir->shared, &nir->num_shared, 0,
>> type_size_scalar_bytes);
>> - nir_lower_io(nir, nir_var_shared, type_size_scalar_bytes);
>> + nir_lower_io(nir, nir_var_shared, type_size_scalar_bytes, false);
>> }
>>
>> #define OPT(pass, ...) ({ \
>> diff --git a/src/mesa/drivers/dri/i965/brw_program.c
>> b/src/mesa/drivers/dri/i965/brw_program.c
>> index 7785490..1899d79 100644
>> --- a/src/mesa/drivers/dri/i965/brw_program.c
>> +++ b/src/mesa/drivers/dri/i965/brw_program.c
>> @@ -53,11 +53,11 @@ brw_nir_lower_uniforms(nir_shader *nir, bool
>> is_scalar)
>> if (is_scalar) {
>> nir_assign_var_locations(&nir->uniforms, &nir->num_uniforms, 0,
>> type_size_scalar_bytes);
>> - nir_lower_io(nir, nir_var_uniform, type_size_scalar_bytes);
>> + nir_lower_io(nir, nir_var_uniform, type_size_scalar_bytes, false);
>> } else {
>> nir_assign_var_locations(&nir->uniforms, &nir->num_uniforms, 0,
>> type_size_vec4_bytes);
>> - nir_lower_io(nir, nir_var_uniform, type_size_vec4_bytes);
>> + nir_lower_io(nir, nir_var_uniform, type_size_vec4_bytes, false);
>> }
>> }
>>
>> diff --git a/src/mesa/state_tracker/st_glsl_to_nir.cpp
>> b/src/mesa/state_tracker/st_glsl_to_nir.cpp
>> index 73a692a..18a524d 100644
>> --- a/src/mesa/state_tracker/st_glsl_to_nir.cpp
>> +++ b/src/mesa/state_tracker/st_glsl_to_nir.cpp
>> @@ -343,7 +343,7 @@ st_finalize_nir(struct st_context *st, struct
>> gl_program *prog, nir_shader *nir)
>> &nir->uniforms, &nir->num_uniforms);
>>
>> NIR_PASS_V(nir, nir_lower_system_values);
>> - NIR_PASS_V(nir, nir_lower_io, nir_var_all, st_glsl_type_size);
>> + NIR_PASS_V(nir, nir_lower_io, nir_var_all, st_glsl_type_size, false);
>> NIR_PASS_V(nir, nir_lower_samplers, shader_program);
>> }
>>
>> --
>> 2.9.0
>>
>> _______________________________________________
>> mesa-dev mailing list
>> mesa-dev at lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/mesa-dev
>>
>
>
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