Revert "ac: don't call ac_query_pci_bus_info from ac_query_gpu_info"

This reverts commit a48642400b.

Instead, add a new parameter require_pci_bus_info to control the behavior.

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24759>

src/amd/common/ac_gpu_info.c

@@ -547,7 +547,7 @@ static void set_custom_cu_en_mask(struct radeon_info *info)
    }
 }
 
-bool ac_query_pci_bus_info(int fd, struct radeon_info *info)
+static bool ac_query_pci_bus_info(int fd, struct radeon_info *info)
 {
    drmDevicePtr devinfo;
 
@@ -568,7 +568,8 @@ bool ac_query_pci_bus_info(int fd, struct radeon_info *info)
    return true;
 }
 
-bool ac_query_gpu_info(int fd, void *dev_p, struct radeon_info *info)
+bool ac_query_gpu_info(int fd, void *dev_p, struct radeon_info *info,
+                       bool require_pci_bus_info)
 {
    struct amdgpu_gpu_info amdinfo;
    struct drm_amdgpu_info_device device_info = {0};
@@ -587,6 +588,11 @@ bool ac_query_gpu_info(int fd, void *dev_p, struct radeon_info *info)
    STATIC_ASSERT(AMDGPU_HW_IP_VCN_ENC == AMD_IP_VCN_ENC);
    STATIC_ASSERT(AMDGPU_HW_IP_VCN_JPEG == AMD_IP_VCN_JPEG);
 
+   if (!ac_query_pci_bus_info(fd, info)) {
+      if (require_pci_bus_info)
+         return false;
+   }
+
    assert(info->drm_major == 3);
    info->is_amdgpu = true;
 

src/amd/common/ac_gpu_info.h

@@ -274,8 +274,8 @@ struct radeon_info {
    bool has_fw_based_shadowing;
 };
 
-bool ac_query_gpu_info(int fd, void *dev_p, struct radeon_info *info);
+bool ac_query_gpu_info(int fd, void *dev_p, struct radeon_info *info,
-bool ac_query_pci_bus_info(int fd, struct radeon_info *info);
+                       bool require_pci_bus_info);
 
 void ac_compute_driver_uuid(char *uuid, size_t size);
 

src/amd/vulkan/winsys/amdgpu/radv_amdgpu_winsys.c

@@ -42,7 +42,7 @@
 static bool
 do_winsys_init(struct radv_amdgpu_winsys *ws, int fd)
 {
-   if (!ac_query_gpu_info(fd, ws->dev, &ws->info))
+   if (!ac_query_gpu_info(fd, ws->dev, &ws->info, true))
       return false;
 
    /*
@@ -57,9 +57,6 @@ do_winsys_init(struct radv_amdgpu_winsys *ws, int fd)
    for (enum amd_ip_type ip_type = AMD_IP_UVD; ip_type <= AMD_IP_VCN_ENC; ip_type++)
       ws->info.max_submitted_ibs[ip_type] = 1;
 
-   if (!ac_query_pci_bus_info(fd, &ws->info))
-      return false;
-
    if (ws->info.drm_minor < 27) {
       fprintf(stderr, "radv/amdgpu: DRM 3.27+ is required (Linux kernel 4.20+)\n");
       return false;

src/gallium/winsys/amdgpu/drm/amdgpu_winsys.c

@@ -75,11 +75,9 @@ static bool do_winsys_init(struct amdgpu_winsys *ws,
                            const struct pipe_screen_config *config,
                            int fd)
 {
-   if (!ac_query_gpu_info(fd, ws->dev, &ws->info))
+   if (!ac_query_gpu_info(fd, ws->dev, &ws->info, false))
       goto fail;
 
-   ac_query_pci_bus_info(fd, &ws->info);
-
    /* TODO: Enable this once the kernel handles it efficiently. */
    if (ws->info.has_dedicated_vram)
       ws->info.has_local_buffers = false;