[PATCH 6/9] drm/amdkfd: Allocate gart memory using new interface

[Oded Gabbay]

This patch changes the calls to allocate the gart memory for amdkfd from the
old interface (radeon_sa) to the new one (kfd_gtt_sa)

The new gart sub-allocator is initialized with chunk size equal to 512 bytes.
This is because the KV MQD is 512 Bytes and most of the sub-allocations are
MQDs.

Reviewed-by: Alexey Skidanov <Alexey.skidanov at amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay at amd.com>
---
 drivers/gpu/drm/amd/amdkfd/kfd_device.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c 
b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
index 163b1a4..ac94dc3 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
@@ -192,7 +192,8 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd,
        /* add another 512KB for all other allocations on gart (HPD, fences) */
        size += 512 * 1024;

-       if (kfd2kgd->init_sa_manager(kfd->kgd, size)) {
+       if (kfd2kgd->init_gtt_mem_allocation(kfd->kgd, size, &kfd->gtt_mem,
+                       &kfd->gtt_start_gpu_addr, &kfd->gtt_start_cpu_ptr)) {
                dev_err(kfd_device,
                        "Could not allocate %d bytes for device (%x:%x)\n",
                        size, kfd->pdev->vendor, kfd->pdev->device);
@@ -203,6 +204,13 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd,
                "Allocated %d bytes on gart for device(%x:%x)\n",
                size, kfd->pdev->vendor, kfd->pdev->device);

+       /* Initialize GTT sa with 512 byte chunk size */
+       if (kfd_gtt_sa_init(kfd, size, 512) != 0) {
+               dev_err(kfd_device,
+                       "Error initializing gtt sub-allocator\n");
+               goto kfd_gtt_sa_init_error;
+       }
+
        kfd_doorbell_init(kfd);

        if (kfd_topology_add_device(kfd) != 0) {
@@ -261,7 +269,9 @@ device_iommu_pasid_error:
 kfd_interrupt_error:
        kfd_topology_remove_device(kfd);
 kfd_topology_add_device_error:
-       kfd2kgd->fini_sa_manager(kfd->kgd);
+       kfd_gtt_sa_fini(kfd);
+kfd_gtt_sa_init_error:
+       kfd2kgd->free_gtt_mem(kfd->kgd, kfd->gtt_mem);
        dev_err(kfd_device,
                "device (%x:%x) NOT added due to errors\n",
                kfd->pdev->vendor, kfd->pdev->device);
@@ -276,6 +286,8 @@ void kgd2kfd_device_exit(struct kfd_dev *kfd)
                amd_iommu_free_device(kfd->pdev);
                kfd_interrupt_exit(kfd);
                kfd_topology_remove_device(kfd);
+               kfd_gtt_sa_fini(kfd);
+               kfd2kgd->free_gtt_mem(kfd->kgd, kfd->gtt_mem);
        }

        kfree(kfd);
-- 
2.1.0