drm/amdkfd: Separate doorbell allocation from PASID
PASID management is moving into KGD. Limiting the PASID range to the
number of doorbell pages is no longer practical.
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
index b397ec7..4cb90f5 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
@@ -157,9 +157,6 @@ struct kfd_dev {
* to HW doorbell, GFX reserved some
* at the start)
*/
- size_t doorbell_process_limit; /* Number of processes we have doorbell
- * space for.
- */
u32 __iomem *doorbell_kernel_ptr; /* This is a pointer for a doorbells
* page used by kernel queue
*/
@@ -495,6 +492,7 @@ struct kfd_process {
struct rcu_head rcu;
unsigned int pasid;
+ unsigned int doorbell_index;
/*
* List of kfd_process_device structures,
@@ -583,6 +581,10 @@ void write_kernel_doorbell(u32 __iomem *db, u32 value);
unsigned int kfd_queue_id_to_doorbell(struct kfd_dev *kfd,
struct kfd_process *process,
unsigned int queue_id);
+phys_addr_t kfd_get_process_doorbells(struct kfd_dev *dev,
+ struct kfd_process *process);
+int kfd_alloc_process_doorbells(struct kfd_process *process);
+void kfd_free_process_doorbells(struct kfd_process *process);
/* GTT Sub-Allocator */
@@ -694,8 +696,6 @@ int pm_send_unmap_queue(struct packet_manager *pm, enum kfd_queue_type type,
void pm_release_ib(struct packet_manager *pm);
uint64_t kfd_get_number_elems(struct kfd_dev *kfd);
-phys_addr_t kfd_get_process_doorbells(struct kfd_dev *dev,
- struct kfd_process *process);
/* Events */
extern const struct kfd_event_interrupt_class event_interrupt_class_cik;