pvr: Add multi layer passthough vert shader upload in device.

Signed-off-by: Karmjit Mahil <Karmjit.Mahil@imgtec.com>
Reviewed-by: Frank Binns <frank.binns@imgtec.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20055>

src/imagination/vulkan/pvr_device.c

@@ -1778,6 +1778,29 @@ pvr_device_init_graphics_static_clear_state(struct pvr_device *device)
                                   { 0.0f, vf_y_max, 0.0f },
                                   { vf_x_max, vf_y_max, 0.0f } };
 
+   if (PVR_HAS_FEATURE(dev_info, gs_rta_support)) {
+      struct util_dynarray passthrough_rta_vert_shader;
+
+      util_dynarray_init(&passthrough_rta_vert_shader, NULL);
+      pvr_hard_code_get_passthrough_rta_vertex_shader(
+         dev_info,
+         &passthrough_rta_vert_shader);
+
+      result = pvr_gpu_upload_usc(device,
+                                  passthrough_rta_vert_shader.data,
+                                  passthrough_rta_vert_shader.size,
+                                  cache_line_size,
+                                  &state->usc_multi_layer_vertex_shader_bo);
+      if (result != VK_SUCCESS) {
+         util_dynarray_fini(&passthrough_rta_vert_shader);
+         return result;
+      }
+
+      util_dynarray_fini(&passthrough_rta_vert_shader);
+   } else {
+      state->usc_multi_layer_vertex_shader_bo = NULL;
+   }
+
    pvr_hard_code_get_passthrough_vertex_shader(dev_info,
                                                &passthrough_vert_shader);
 
@@ -1787,7 +1810,7 @@ pvr_device_init_graphics_static_clear_state(struct pvr_device *device)
                                cache_line_size,
                                &state->usc_vertex_shader_bo);
    if (result != VK_SUCCESS)
-      return result;
+      goto err_free_usc_multi_layer_shader;
 
    result = pvr_gpu_upload(device,
                            device->heaps.general_heap,
@@ -1894,6 +1917,9 @@ err_free_verices_buffer:
 err_free_usc_shader:
    pvr_bo_free(device, state->usc_vertex_shader_bo);
 
+err_free_usc_multi_layer_shader:
+   pvr_bo_free(device, state->usc_multi_layer_vertex_shader_bo);
+
    return result;
 }
 
@@ -1905,6 +1931,7 @@ pvr_device_finish_graphics_static_clear_state(struct pvr_device *device)
    pvr_bo_free(device, state->pds.pvr_bo);
    pvr_bo_free(device, state->vertices_bo);
    pvr_bo_free(device, state->usc_vertex_shader_bo);
+   pvr_bo_free(device, state->usc_multi_layer_vertex_shader_bo);
 }
 
 /* FIXME: We should be calculating the size when we upload the code in

src/imagination/vulkan/pvr_hardcode.c

@@ -35,6 +35,7 @@
 #include "rogue/rogue.h"
 #include "usc/hardcoded_apps/pvr_simple_compute.h"
 #include "util/macros.h"
+#include "util/u_dynarray.h"
 #include "util/u_process.h"
 
 /**
@@ -47,6 +48,9 @@
 #define PVR_AXE_1_16M_BVNC PVR_BVNC_PACK(33, 15, 11, 3)
 #define PVR_GX6250_BVNC PVR_BVNC_PACK(4, 40, 2, 51)
 
+#define util_dynarray_append_mem(buf, size, mem) \
+   memcpy(util_dynarray_grow_bytes((buf), 1, size), mem, size)
+
 enum pvr_hard_code_shader_type {
    PVR_HARD_CODE_SHADER_TYPE_COMPUTE,
    PVR_HARD_CODE_SHADER_TYPE_GRAPHICS,
@@ -363,3 +367,16 @@ void pvr_hard_code_get_passthrough_vertex_shader(
       "No hard coded passthrough vertex shader. Returning empty shader.");
    *program_out = &shader;
 };
+
+/* Render target array (RTA). */
+void pvr_hard_code_get_passthrough_rta_vertex_shader(
+   const struct pvr_device_info *const dev_info,
+   struct util_dynarray *program_out)
+{
+   uint32_t shader[] = { 0, 0, 0, 0, 0, 0, 0, 0 };
+
+   util_dynarray_append_mem(program_out, ARRAY_SIZE(shader), &shader);
+
+   mesa_loge("No hard coded passthrough rta vertex shader. Returning "
+             "empty shader.");
+}

src/imagination/vulkan/pvr_hardcode.h

@@ -30,6 +30,7 @@
 
 #include "compiler/shader_enums.h"
 #include "rogue/rogue_build_data.h"
+#include "util/u_dynarray.h"
 
 /**
  * \file pvr_hardcode.h
@@ -128,5 +129,8 @@ void pvr_hard_code_get_idfwdf_program(
 void pvr_hard_code_get_passthrough_vertex_shader(
    const struct pvr_device_info *const dev_info,
    const struct rogue_shader_binary **const program_out);
+void pvr_hard_code_get_passthrough_rta_vertex_shader(
+   const struct pvr_device_info *const dev_info,
+   struct util_dynarray *program_out);
 
 #endif /* PVR_HARDCODE_SHADERS_H */

src/imagination/vulkan/pvr_private.h

@@ -418,6 +418,8 @@ struct pvr_device {
       struct pvr_bo *vertices_bo;
       struct pvr_pds_upload pds;
 
+      struct pvr_bo *usc_multi_layer_vertex_shader_bo;
+
       struct pvr_static_clear_ppp_base ppp_base;
       struct pvr_static_clear_ppp_template
          ppp_templates[PVR_STATIC_CLEAR_VARIANT_COUNT];