[PATCH 08/12] amdkfd: add __iomem attribute to doorbell_ptr

[Oded Gabbay]

This patch was done due to sparse warning. It changes the definition of
doorbell_ptr in queue_properties to be with __iomem attribute, so it would
match the type which the doorbell module functions are returning.

Signed-off-by: Oded Gabbay <oded.gabbay at amd.com>
---
 drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c | 9 ++++-----
 drivers/gpu/drm/amd/amdkfd/kfd_priv.h         | 2 +-
 2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c 
b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c
index 424ddcc..5055fc9 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c
@@ -66,8 +66,7 @@ static bool initialize(struct kernel_queue *kq, struct 
kfd_dev *dev,
        if (kq->mqd == NULL)
                return false;

-       prop.doorbell_ptr =
-               (uint32_t *)kfd_get_kernel_doorbell(dev, &prop.doorbell_off);
+       prop.doorbell_ptr = kfd_get_kernel_doorbell(dev, &prop.doorbell_off);

        if (prop.doorbell_ptr == NULL)
                goto err_get_kernel_doorbell;
@@ -172,7 +171,7 @@ err_rptr_allocate_vidmem:
        kfd2kgd->free_mem(dev->kgd, (struct kgd_mem *) kq->pq);
 err_pq_allocate_vidmem:
        pr_err("kfd: error init pq\n");
-       kfd_release_kernel_doorbell(dev, (u32 *)prop.doorbell_ptr);
+       kfd_release_kernel_doorbell(dev, prop.doorbell_ptr);
 err_get_kernel_doorbell:
        pr_err("kfd: error init doorbell");
        return false;
@@ -195,7 +194,7 @@ static void uninitialize(struct kernel_queue *kq)
        kfd2kgd->free_mem(kq->dev->kgd, (struct kgd_mem *) kq->wptr_mem);
        kfd2kgd->free_mem(kq->dev->kgd, (struct kgd_mem *) kq->pq);
        kfd_release_kernel_doorbell(kq->dev,
-                               (u32 *)kq->queue->properties.doorbell_ptr);
+                                       kq->queue->properties.doorbell_ptr);
        uninit_queue(kq->queue);
 }

@@ -255,7 +254,7 @@ static void submit_packet(struct kernel_queue *kq)
 #endif

        *kq->wptr_kernel = kq->pending_wptr;
-       write_kernel_doorbell((u32 *)kq->queue->properties.doorbell_ptr,
+       write_kernel_doorbell(kq->queue->properties.doorbell_ptr,
                                kq->pending_wptr);
 }

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h 
b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
index 41e608d..d0bcafc 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
@@ -279,7 +279,7 @@ struct queue_properties {
        uint32_t queue_percent;
        uint32_t *read_ptr;
        uint32_t *write_ptr;
-       uint32_t *doorbell_ptr;
+       uint32_t __iomem *doorbell_ptr;
        uint32_t doorbell_off;
        bool is_interop;
        bool is_active;
-- 
2.1.0