nvk: add hashing for shaders

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25550>

src/nouveau/vulkan/nvk_compute_pipeline.c

@@ -188,6 +188,10 @@ nvk_compute_pipeline_create(struct nvk_device *dev,
 
    nvk_lower_nir(dev, nir, &robustness, false, pipeline_layout, shader);
 
+   unsigned char sha1[SHA1_DIGEST_LENGTH];
+   nvk_hash_shader(sha1, &pCreateInfo->stage, &robustness, false,
+                   pipeline_layout, NULL);
+
    result = nvk_compile_nir(pdev, nir, pipeline_flags, &robustness, NULL,
                             shader);
    ralloc_free(nir);

src/nouveau/vulkan/nvk_graphics_pipeline.c

@@ -233,6 +233,11 @@ nvk_graphics_pipeline_create(struct nvk_device *dev,
          fs_key = &fs_key_tmp;
       }
 
+      unsigned char sha1[SHA1_DIGEST_LENGTH];
+      nvk_hash_shader(sha1, sinfo, &robustness[stage],
+                      state.rp->view_mask != 0,
+                      pipeline_layout, fs_key);
+
       result = nvk_compile_nir(pdev, nir[stage], pipeline_flags,
                                &robustness[stage], fs_key,
                                &pipeline->base.shaders[stage]);

src/nouveau/vulkan/nvk_shader.c

@@ -514,3 +514,39 @@ nvk_shader_finish(struct nvk_device *dev, struct nvk_shader *shader)
    if (shader->nak)
       nak_shader_bin_destroy(shader->nak);
 }
+
+void
+nvk_hash_shader(unsigned char *hash,
+                const VkPipelineShaderStageCreateInfo *sinfo,
+                const struct vk_pipeline_robustness_state *rs,
+                bool is_multiview,
+                const struct vk_pipeline_layout *layout,
+                const struct nak_fs_key *fs_key)
+{
+   struct mesa_sha1 ctx;
+
+   _mesa_sha1_init(&ctx);
+
+   unsigned char stage_sha1[SHA1_DIGEST_LENGTH];
+   vk_pipeline_hash_shader_stage(sinfo, rs, stage_sha1);
+
+   _mesa_sha1_update(&ctx, stage_sha1, sizeof(stage_sha1));
+
+   _mesa_sha1_update(&ctx, &is_multiview, sizeof(is_multiview));
+
+   if (layout) {
+      _mesa_sha1_update(&ctx, &layout->create_flags,
+                        sizeof(layout->create_flags));
+      _mesa_sha1_update(&ctx, &layout->set_count, sizeof(layout->set_count));
+      for (int i = 0; i < layout->set_count; i++) {
+         struct nvk_descriptor_set_layout *set =
+            vk_to_nvk_descriptor_set_layout(layout->set_layouts[i]);
+         _mesa_sha1_update(&ctx, &set->sha1, sizeof(set->sha1));
+      }
+   }
+
+   if(fs_key)
+      _mesa_sha1_update(&ctx, fs_key, sizeof(*fs_key));
+
+   _mesa_sha1_final(&ctx, hash);
+}

src/nouveau/vulkan/nvk_shader.h

@@ -130,6 +130,14 @@ nvk_shader_upload(struct nvk_device *dev, struct nvk_shader *shader);
 void
 nvk_shader_finish(struct nvk_device *dev, struct nvk_shader *shader);
 
+void
+nvk_hash_shader(unsigned char *hash,
+                const VkPipelineShaderStageCreateInfo *sinfo,
+                const struct vk_pipeline_robustness_state *rstate,
+                bool is_multiview,
+                const struct vk_pipeline_layout *layout,
+                const struct nak_fs_key *fs_key);
+
 /* Codegen wrappers.
  *
  * TODO: Delete these once NAK supports everything.