From: Shaoyun Liu Shaoyun.Liu@amd.com
[ Upstream commit 951df6d9cfd07f205f1905bf3b27d994612e0614 ]
The bitmap index calculation should reverse the logic used on allocation so it will clear the same bit used on allocation
Signed-off-by: Shaoyun Liu Shaoyun.Liu@amd.com Reviewed-by: Felix Kuehling Felix.Kuehling@amd.com Signed-off-by: Felix Kuehling Felix.Kuehling@amd.com Acked-by: Christian König christian.koenig@amd.com Signed-off-by: Oded Gabbay oded.gabbay@gmail.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com --- drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c b/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c index c3744d89352c..ebe79bf00145 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c @@ -188,9 +188,9 @@ void __iomem *kfd_get_kernel_doorbell(struct kfd_dev *kfd, *doorbell_off = kfd->doorbell_id_offset + inx;
pr_debug("Get kernel queue doorbell\n" - " doorbell offset == 0x%08X\n" - " kernel address == %p\n", - *doorbell_off, (kfd->doorbell_kernel_ptr + inx)); + " doorbell offset == 0x%08X\n" + " doorbell index == 0x%x\n", + *doorbell_off, inx);
return kfd->doorbell_kernel_ptr + inx; } @@ -199,7 +199,8 @@ void kfd_release_kernel_doorbell(struct kfd_dev *kfd, u32 __iomem *db_addr) { unsigned int inx;
- inx = (unsigned int)(db_addr - kfd->doorbell_kernel_ptr); + inx = (unsigned int)(db_addr - kfd->doorbell_kernel_ptr) + * sizeof(u32) / kfd->device_info->doorbell_size;
mutex_lock(&kfd->doorbell_mutex); __clear_bit(inx, kfd->doorbell_available_index);