spapr: Remove support for NVIDIA V100 GPU with NVLink2

NVLink2 support was removed from the PPC PowerNV platform and VFIO in
Linux 5.13 with commits :

  562d1e207d32 ("powerpc/powernv: remove the nvlink support")
  b392a1989170 ("vfio/pci: remove vfio_pci_nvlink2")

This was 2.5 years ago. Do the same in QEMU with a revert of commit
ec132efaa81f ("spapr: Support NVIDIA V100 GPU with NVLink2"). Some
adjustements are required on the NUMA part.

Cc: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Message-ID: <20230918091717.149950-1-clg@kaod.org>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>

1 files changed, 2 insertions, 7 deletions

diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index f4bd204d86..fca60b4031 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -103,11 +103,8 @@ typedef enum {
 
 #define FDT_MAX_SIZE                    0x200000
 
-/* Max number of GPUs per system */
-#define NVGPU_MAX_NUM              6
-
 /* Max number of NUMA nodes */
-#define NUMA_NODES_MAX_NUM         (MAX_NODES + NVGPU_MAX_NUM)
+#define NUMA_NODES_MAX_NUM         (MAX_NODES)
 
 /*
  * NUMA FORM1 macros. FORM1_DIST_REF_POINTS was taken from
@@ -160,8 +157,7 @@ struct SpaprMachineClass {
     bool (*phb_placement)(SpaprMachineState *spapr, uint32_t index,
                           uint64_t *buid, hwaddr *pio,
                           hwaddr *mmio32, hwaddr *mmio64,
-                          unsigned n_dma, uint32_t *liobns, hwaddr *nv2gpa,
-                          hwaddr *nv2atsd, Error **errp);
+                          unsigned n_dma, uint32_t *liobns, Error **errp);
     SpaprResizeHpt resize_hpt_default;
     SpaprCapabilities default_caps;
     SpaprIrq *irq;
@@ -276,7 +272,6 @@ struct SpaprMachineState {
     bool cmd_line_caps[SPAPR_CAP_NUM];
     SpaprCapabilities def, eff, mig;
 
-    unsigned gpu_numa_id;
     SpaprTpmProxy *tpm_proxy;
 
     uint32_t FORM1_assoc_array[NUMA_NODES_MAX_NUM][FORM1_NUMA_ASSOC_SIZE];