diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_device.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_device.c | 43 |
1 files changed, 42 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c index 226d2dd7fa49..0b3dc754e06b 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c @@ -138,9 +138,12 @@ static void kfd_device_info_set_event_interrupt_class(struct kfd_dev *kfd) case IP_VERSION(9, 4, 0): /* VEGA20 */ case IP_VERSION(9, 4, 1): /* ARCTURUS */ case IP_VERSION(9, 4, 2): /* ALDEBARAN */ - case IP_VERSION(9, 4, 3): /* GC 9.4.3 */ kfd->device_info.event_interrupt_class = &event_interrupt_class_v9; break; + case IP_VERSION(9, 4, 3): /* GC 9.4.3 */ + kfd->device_info.event_interrupt_class = + &event_interrupt_class_v9_4_3; + break; case IP_VERSION(10, 3, 1): /* VANGOGH */ case IP_VERSION(10, 3, 3): /* YELLOW_CARP */ case IP_VERSION(10, 3, 6): /* GC 10.3.6 */ @@ -599,6 +602,41 @@ static void kfd_cleanup_nodes(struct kfd_dev *kfd, unsigned int num_nodes) } } +static void kfd_setup_interrupt_bitmap(struct kfd_node *node, + unsigned int kfd_node_idx) +{ + struct amdgpu_device *adev = node->adev; + uint32_t xcc_mask = node->xcc_mask; + uint32_t xcc, mapped_xcc; + /* + * Interrupt bitmap is setup for processing interrupts from + * different XCDs and AIDs. + * Interrupt bitmap is defined as follows: + * 1. Bits 0-15 - correspond to the NodeId field. + * Each bit corresponds to NodeId number. For example, if + * a KFD node has interrupt bitmap set to 0x7, then this + * KFD node will process interrupts with NodeId = 0, 1 and 2 + * in the IH cookie. + * 2. Bits 16-31 - unused. + * + * Please note that the kfd_node_idx argument passed to this + * function is not related to NodeId field received in the + * IH cookie. + * + * In CPX mode, a KFD node will process an interrupt if: + * - the Node Id matches the corresponding bit set in + * Bits 0-15. + * - AND VMID reported in the interrupt lies within the + * VMID range of the node. + */ + for_each_inst(xcc, xcc_mask) { + mapped_xcc = GET_INST(GC, xcc); + node->interrupt_bitmap |= (mapped_xcc % 2 ? 5 : 3) << (4 * (mapped_xcc / 2)); + } + dev_info(kfd_device, "Node: %d, interrupt_bitmap: %x\n", kfd_node_idx, + node->interrupt_bitmap); +} + bool kgd2kfd_device_init(struct kfd_dev *kfd, const struct kgd2kfd_shared_resources *gpu_resources) { @@ -798,6 +836,9 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd, amdgpu_amdkfd_get_local_mem_info(kfd->adev, &node->local_mem_info, node->xcp); + if (KFD_GC_VERSION(kfd) == IP_VERSION(9, 4, 3)) + kfd_setup_interrupt_bitmap(node, i); + /* Initialize the KFD node */ if (kfd_init_node(node)) { dev_err(kfd_device, "Error initializing KFD node\n"); |