drm/amdgpu: remove unused functions and variables

This patch removes some variables and functions from KFD
doorbell handling code, which are no more required since
doorbell manager is handling doorbell calculations.

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian Koenig <christian.koenig@amd.com>
Cc: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Shashank Sharma <shashank.sharma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c b/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c
index 2165533..c2e0b79 100644 (file)
--- a/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c
@@ -200,38 +200,6 @@ void write_kernel_doorbell64(void __iomem *db, u64 value)
        }
 }
 
-unsigned int kfd_get_doorbell_dw_offset_in_bar(struct kfd_dev *kfd,
-                                       struct kfd_process_device *pdd,
-                                       unsigned int doorbell_id)
-{
-       /*
-        * doorbell_base_dw_offset accounts for doorbells taken by KGD.
-        * index * kfd_doorbell_process_slice/sizeof(u32) adjusts to
-        * the process's doorbells. The offset returned is in dword
-        * units regardless of the ASIC-dependent doorbell size.
-        */
-       if (!kfd->shared_resources.enable_mes)
-               return kfd->doorbell_base_dw_offset +
-                       pdd->doorbell_index
-                       * kfd_doorbell_process_slice(kfd) / sizeof(u32) +
-                       doorbell_id *
-                       kfd->device_info.doorbell_size / sizeof(u32);
-       else
-               return amdgpu_mes_get_doorbell_dw_offset_in_bar(
-                               (struct amdgpu_device *)kfd->adev,
-                               pdd->doorbell_index, doorbell_id);
-}
-
-uint64_t kfd_get_number_elems(struct kfd_dev *kfd)
-{
-       uint64_t num_of_elems = (kfd->shared_resources.doorbell_aperture_size -
-                               kfd->shared_resources.doorbell_start_offset) /
-                                       kfd_doorbell_process_slice(kfd) + 1;
-
-       return num_of_elems;
-
-}
-
 static int init_doorbell_bitmap(struct qcm_process_device *qpd,
                                struct kfd_dev *dev)
 {

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
index b9215a9..4f07b88 100644 (file)
--- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
@@ -323,15 +323,6 @@ struct kfd_dev {
 
        struct kfd_device_info device_info;
 
-       phys_addr_t doorbell_base;      /* Start of actual doorbells used by
-                                        * KFD. It is aligned for mapping
-                                        * into user mode
-                                        */
-       size_t doorbell_base_dw_offset; /* Offset from the start of the PCI
-                                        * doorbell BAR to the first KFD
-                                        * doorbell in dwords. GFX reserves
-                                        * the segment before this offset.
-                                        */
        u32 __iomem *doorbell_kernel_ptr; /* This is a pointer for a doorbells
                                           * page used by kernel queue
                                           */
@@ -340,8 +331,6 @@ struct kfd_dev {
 
        const struct kfd2kgd_calls *kfd2kgd;
        struct mutex doorbell_mutex;
-       DECLARE_BITMAP(doorbell_available_index,
-                       KFD_MAX_NUM_OF_QUEUES_PER_PROCESS);
 
        void *gtt_mem;
        uint64_t gtt_start_gpu_addr;
@@ -801,7 +790,6 @@ struct kfd_process_device {
        struct attribute attr_evict;
 
        struct kobject *kobj_stats;
-       unsigned int doorbell_index;
 
        /*
         * @cu_occupancy: Reports occupancy of Compute Units (CU) of a process