v3d: compute appropriate VPM memory configuration for geometry shader workloads

[mesa.git] / src / broadcom / compiler / v3d_compiler.h

diff --git a/src/broadcom/compiler/v3d_compiler.h b/src/broadcom/compiler/v3d_compiler.h
index 29057bdf4df03247af574c21c399f56c2f2fd0d8..4249c181bf113f57974dfcd934004e5ece46c718 100644 (file)
--- a/src/broadcom/compiler/v3d_compiler.h
+++ b/src/broadcom/compiler/v3d_compiler.h
@@ -329,6 +329,7 @@ struct v3d_key {
                 bool clamp_r:1;
         } tex[V3D_MAX_TEXTURE_SAMPLERS];
         uint8_t ucp_enables;
+        bool is_last_geometry_stage;
 };
 
 struct v3d_fs_key {
@@ -371,6 +372,16 @@ struct v3d_fs_key {
         struct pipe_rt_blend_state blend;
 };
 
+struct v3d_gs_key {
+        struct v3d_key base;
+
+        struct v3d_varying_slot used_outputs[V3D_MAX_FS_INPUTS];
+        uint8_t num_used_outputs;
+
+        bool is_coord;
+        bool per_vertex_point_size;
+};
+
 struct v3d_vs_key {
         struct v3d_key base;
 
@@ -552,6 +563,7 @@ struct v3d_compile {
         int local_invocation_index_bits;
 
         uint8_t vattr_sizes[V3D_MAX_VS_INPUTS / 4];
+        uint8_t gs_input_sizes[V3D_MAX_GS_INPUTS];
         uint32_t vpm_output_size;
 
         /* Size in bytes of registers that have been spilled. This is how much
@@ -586,6 +598,7 @@ struct v3d_compile {
         struct pipe_shader_state *shader_state;
         struct v3d_key *key;
         struct v3d_fs_key *fs_key;
+        struct v3d_gs_key *gs_key;
         struct v3d_vs_key *vs_key;
 
         /* Live ranges of temps. */
@@ -687,6 +700,36 @@ struct v3d_vs_prog_data {
         uint8_t vcm_cache_size;
 };
 
+struct v3d_gs_prog_data {
+        struct v3d_prog_data base;
+
+        /* Whether the program reads gl_PrimitiveIDIn */
+        bool uses_pid;
+
+        /* Number of components read from each input varying. */
+        uint8_t input_sizes[V3D_MAX_GS_INPUTS / 4];
+
+        /* Number of inputs */
+        uint8_t num_inputs;
+        struct v3d_varying_slot input_slots[V3D_MAX_GS_INPUTS];
+
+        /* Total number of components written, for the shader state record. */
+        uint32_t vpm_output_size;
+
+        /* Maximum SIMD dispatch width to not exceed VPM output size limits
+         * in the geometry shader. Notice that the final dispatch width has to
+         * be decided at draw time and could be lower based on the VPM pressure
+         * added by other shader stages.
+         */
+        uint8_t simd_width;
+
+        /* Output primitive type */
+        uint8_t out_prim_type;
+
+        /* Number of GS invocations */
+        uint8_t num_invocations;
+};
+
 struct v3d_fs_prog_data {
         struct v3d_prog_data base;
 
@@ -1004,6 +1047,7 @@ VIR_A_ALU2(LDVPMG_IN)
 VIR_A_ALU2(LDVPMG_OUT)
 VIR_A_ALU0(TMUWT)
 
+VIR_A_ALU0(IID)
 VIR_A_ALU0(FXCD)
 VIR_A_ALU0(XCD)
 VIR_A_ALU0(FYCD)