[Mesa-dev] [PATCH 26/26] winsys/amdgpu: get PCI info

[Marek Olšák]

From: Marek Olšák <marek.olsak at amd.com>

This will be queried by the OpenCL stack using an interop call.

I have tested that the values match lspci.
---
 src/gallium/drivers/radeon/radeon_winsys.h    |  6 ++++++
 src/gallium/winsys/amdgpu/drm/amdgpu_winsys.c | 17 +++++++++++++++--
 2 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/src/gallium/drivers/radeon/radeon_winsys.h b/src/gallium/drivers/radeon/radeon_winsys.h
index 5ca2414..b8a0659 100644
--- a/src/gallium/drivers/radeon/radeon_winsys.h
+++ b/src/gallium/drivers/radeon/radeon_winsys.h
@@ -231,6 +231,12 @@ struct radeon_winsys_cs {
 };
 
 struct radeon_info {
+    /* PCI info: domain:bus:dev:func */
+    uint32_t                    pci_domain;
+    uint32_t                    pci_bus;
+    uint32_t                    pci_dev;
+    uint32_t                    pci_func;
+
     /* Device info. */
     uint32_t                    pci_id;
     enum radeon_family          family;
diff --git a/src/gallium/winsys/amdgpu/drm/amdgpu_winsys.c b/src/gallium/winsys/amdgpu/drm/amdgpu_winsys.c
index fc7562d..938b9c2 100644
--- a/src/gallium/winsys/amdgpu/drm/amdgpu_winsys.c
+++ b/src/gallium/winsys/amdgpu/drm/amdgpu_winsys.c
@@ -93,13 +93,26 @@ static unsigned cik_get_num_tile_pipes(struct amdgpu_gpu_info *info)
 }
 
 /* Helper function to do the ioctls needed for setup and init. */
-static boolean do_winsys_init(struct amdgpu_winsys *ws)
+static boolean do_winsys_init(struct amdgpu_winsys *ws, int fd)
 {
    struct amdgpu_buffer_size_alignments alignment_info = {};
    struct amdgpu_heap_info vram, gtt;
    struct drm_amdgpu_info_hw_ip dma = {}, uvd = {}, vce = {};
    uint32_t vce_version = 0, vce_feature = 0;
    int r, i, j;
+   drmDevicePtr devinfo;
+
+   /* Get PCI info. */
+   r = drmGetDevice(fd, &devinfo);
+   if (r) {
+      fprintf(stderr, "amdgpu: drmGetDevice failed.\n");
+      goto fail;
+   }
+   ws->info.pci_domain = devinfo->businfo.pci->domain;
+   ws->info.pci_bus = devinfo->businfo.pci->bus;
+   ws->info.pci_dev = devinfo->businfo.pci->dev;
+   ws->info.pci_func = devinfo->businfo.pci->func;
+   drmFreeDevice(&devinfo);
 
    /* Query hardware and driver information. */
    r = amdgpu_query_gpu_info(ws->dev, &ws->amdinfo);
@@ -437,7 +450,7 @@ amdgpu_winsys_create(int fd, radeon_screen_create_t screen_create)
    ws->info.drm_major = drm_major;
    ws->info.drm_minor = drm_minor;
 
-   if (!do_winsys_init(ws))
+   if (!do_winsys_init(ws, fd))
       goto fail;
 
    /* Create managers. */
-- 
2.5.0