nvk: Hook up the disk cache

This won't actually do much yet because we don't have pipeline caches
yet but it turns on the infrastructure.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25443>

src/nouveau/vulkan/nvk_physical_device.c

@@ -12,6 +12,7 @@
 #include "nvk_shader.h"
 #include "nvk_wsi.h"
 #include "git_sha1.h"
+#include "util/disk_cache.h"
 #include "util/mesa-sha1.h"
 
 #include "vulkan/runtime/vk_device.h"
@@ -627,6 +628,24 @@ nvk_get_device_properties(const struct nvk_instance *instance,
             "Mesa " PACKAGE_VERSION MESA_GIT_SHA1);
 }
 
+static void
+nvk_physical_device_init_disk_cache(struct nvk_physical_device *pdev)
+{
+#ifdef ENABLE_SHADER_CACHE
+   char renderer[10];
+   ASSERTED int len = snprintf(renderer, sizeof(renderer), "nvk_%04x",
+                               pdev->info.chipset);
+   assert(len == sizeof(renderer) - 2);
+
+   char timestamp[41];
+   struct nvk_instance *instance = nvk_physical_device_instance(pdev);
+   _mesa_sha1_format(timestamp, instance->driver_build_sha);
+
+   const uint64_t driver_flags = nvk_physical_device_compiler_flags(pdev);
+   pdev->vk.disk_cache = disk_cache_create(renderer, timestamp, driver_flags);
+#endif
+}
+
 VkResult
 nvk_create_drm_physical_device(struct vk_instance *_instance,
                                drmDevicePtr drm_device,
@@ -752,6 +771,8 @@ nvk_create_drm_physical_device(struct vk_instance *_instance,
    pdev->render_dev = render_dev;
    pdev->info = info;
 
+   nvk_physical_device_init_disk_cache(pdev);
+
    pdev->mem_heaps[0].flags = VK_MEMORY_HEAP_DEVICE_LOCAL_BIT;
    pdev->mem_types[0].propertyFlags = VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
    pdev->mem_types[0].heapIndex = 0;

src/nouveau/vulkan/nvk_shader.c

@@ -61,6 +61,29 @@ pipe_shader_type_from_mesa(gl_shader_stage stage)
    }
 }
 
+static uint64_t
+get_prog_debug(void)
+{
+   return debug_get_num_option("NV50_PROG_DEBUG", 0);
+}
+
+static uint64_t
+get_prog_optimize(void)
+{
+   return debug_get_num_option("NV50_PROG_OPTIMIZE", 0);
+}
+
+uint64_t
+nvk_physical_device_compiler_flags(const struct nvk_physical_device *pdev)
+{
+   uint64_t prog_debug = get_prog_debug();
+   uint64_t prog_optimize = get_prog_optimize();
+
+   assert(prog_debug <= UINT8_MAX);
+   assert(prog_optimize <= UINT8_MAX);
+   return prog_debug | (prog_optimize << 8);
+}
+
 const nir_shader_compiler_options *
 nvk_physical_device_nir_options(const struct nvk_physical_device *pdev,
                                 gl_shader_stage stage)
@@ -1108,8 +1131,8 @@ nvk_compile_nir(struct nvk_physical_device *pdev, nir_shader *nir,
       shader->cp.block_size[i] = nir->info.workgroup_size[i];
 
    info->bin.smemSize = shader->cp.smem_size;
-   info->dbgFlags = debug_get_num_option("NV50_PROG_DEBUG", 0);
-   info->optLevel = debug_get_num_option("NV50_PROG_OPTIMIZE", 3);
+   info->dbgFlags = get_prog_debug();
+   info->optLevel = get_prog_optimize();
    info->io.auxCBSlot = 1;
    info->io.uboInfoBase = 0;
    info->io.drawInfoBase = nvk_root_descriptor_offset(draw.base_vertex);

src/nouveau/vulkan/nvk_shader.h

@@ -95,6 +95,9 @@ nvk_shader_address(const struct nvk_shader *shader)
    return shader->upload_addr + shader->upload_padding;
 }
 
+uint64_t
+nvk_physical_device_compiler_flags(const struct nvk_physical_device *pdev);
+
 const nir_shader_compiler_options *
 nvk_physical_device_nir_options(const struct nvk_physical_device *pdev,
                                 gl_shader_stage stage);