drm/amdgpu/gmc8: drop fb location programming

No need to do this as the vbios does this for us.  As such
we no longer need to stop the mc during init.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
index 1c8c0f536aed38d08d20aeb99002001ad701ea58..72ab2d04f0487e85fc388522bde54fb4ffc9fa98 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
@@ -428,7 +428,6 @@ static void gmc_v8_0_vram_gtt_location(struct amdgpu_device *adev,
  */
 static void gmc_v8_0_mc_program(struct amdgpu_device *adev)
 {
-       struct amdgpu_mode_mc_save save;
        u32 tmp;
        int i, j;
 
@@ -442,10 +441,6 @@ static void gmc_v8_0_mc_program(struct amdgpu_device *adev)
        }
        WREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL, 0);
 
-       if (adev->mode_info.num_crtc)
-               amdgpu_display_set_vga_render_state(adev, false);
-
-       gmc_v8_0_mc_stop(adev, &save);
        if (gmc_v8_0_wait_for_idle((void *)adev)) {
                dev_warn(adev->dev, "Wait for MC idle timedout !\n");
        }
@@ -456,20 +451,12 @@ static void gmc_v8_0_mc_program(struct amdgpu_device *adev)
               adev->mc.vram_end >> 12);
        WREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR,
               adev->vram_scratch.gpu_addr >> 12);
-       tmp = ((adev->mc.vram_end >> 24) & 0xFFFF) << 16;
-       tmp |= ((adev->mc.vram_start >> 24) & 0xFFFF);
-       WREG32(mmMC_VM_FB_LOCATION, tmp);
-       /* XXX double check these! */
-       WREG32(mmHDP_NONSURFACE_BASE, (adev->mc.vram_start >> 8));
-       WREG32(mmHDP_NONSURFACE_INFO, (2 << 7) | (1 << 30));
-       WREG32(mmHDP_NONSURFACE_SIZE, 0x3FFFFFFF);
        WREG32(mmMC_VM_AGP_BASE, 0);
        WREG32(mmMC_VM_AGP_TOP, 0x0FFFFFFF);
        WREG32(mmMC_VM_AGP_BOT, 0x0FFFFFFF);
        if (gmc_v8_0_wait_for_idle((void *)adev)) {
                dev_warn(adev->dev, "Wait for MC idle timedout !\n");
        }
-       gmc_v8_0_mc_resume(adev, &save);
 
        WREG32(mmBIF_FB_EN, BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK);