drm/amdgpu: use gmc_v7_0_is_idle() since it is available under GMC7

gmc_v7_0_is_idle() does exactly what we need, so use it.

v2: fix parameter (Alex)

Signed-off-by: Alexandre Demers <alexandre.f.demers@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
index 83e39f16044a14f9d7d1d5c7885f3aabe58645ac..a8d5795084fc97576fa83926e107ed53806958de 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
@@ -1157,17 +1157,10 @@ static bool gmc_v7_0_is_idle(struct amdgpu_ip_block *ip_block)
 static int gmc_v7_0_wait_for_idle(struct amdgpu_ip_block *ip_block)
 {
        unsigned int i;
-       u32 tmp;
        struct amdgpu_device *adev = ip_block->adev;
 
        for (i = 0; i < adev->usec_timeout; i++) {
-               /* read MC_STATUS */
-               tmp = RREG32(mmSRBM_STATUS) & (SRBM_STATUS__MCB_BUSY_MASK |
-                                              SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
-                                              SRBM_STATUS__MCC_BUSY_MASK |
-                                              SRBM_STATUS__MCD_BUSY_MASK |
-                                              SRBM_STATUS__VMC_BUSY_MASK);
-               if (!tmp)
+               if (gmc_v7_0_is_idle(ip_block))
                        return 0;
                udelay(1);
        }