From 63ae07ca4fb4adcacc19272b05b5c3d398e94a56 Mon Sep 17 00:00:00 2001 From: Monk Liu Date: Tue, 17 Oct 2017 19:18:56 +0800 Subject: [PATCH] drm/amdgpu:fix wb_clear Properly shift the index when clearing so we clear the right bit Signed-off-by: Monk Liu Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index e29731c4ada7..efcacb827de7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -546,7 +546,7 @@ int amdgpu_wb_get(struct amdgpu_device *adev, u32 *wb) if (offset < adev->wb.num_wb) { __set_bit(offset, adev->wb.used); - *wb = offset * 8; /* convert to dw offset */ + *wb = offset << 3; /* convert to dw offset */ return 0; } else { return -EINVAL; @@ -564,7 +564,7 @@ int amdgpu_wb_get(struct amdgpu_device *adev, u32 *wb) void amdgpu_wb_free(struct amdgpu_device *adev, u32 wb) { if (wb < adev->wb.num_wb) - __clear_bit(wb, adev->wb.used); + __clear_bit(wb >> 3, adev->wb.used); } /** -- GitLab