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path: root/drivers/gpu/drm/amd/amdgpu/nbio_v7_11.c
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Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/nbio_v7_11.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/nbio_v7_11.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v7_11.c b/drivers/gpu/drm/amd/amdgpu/nbio_v7_11.c
index 676ab1d20d2f..1f52b4b1db03 100644
--- a/drivers/gpu/drm/amd/amdgpu/nbio_v7_11.c
+++ b/drivers/gpu/drm/amd/amdgpu/nbio_v7_11.c
@@ -259,17 +259,17 @@ const struct nbio_hdp_flush_reg nbio_v7_11_hdp_flush_reg = {
static void nbio_v7_11_init_registers(struct amdgpu_device *adev)
{
-/* uint32_t def, data;
+ uint32_t def, data;
+
+ def = data = RREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_PCIE_MST_CTRL_3);
+ data = REG_SET_FIELD(data, BIF_BIF256_CI256_RC3X4_USB4_PCIE_MST_CTRL_3,
+ CI_SWUS_MAX_READ_REQUEST_SIZE_MODE, 1);
+ data = REG_SET_FIELD(data, BIF_BIF256_CI256_RC3X4_USB4_PCIE_MST_CTRL_3,
+ CI_SWUS_MAX_READ_REQUEST_SIZE_PRIV, 1);
- def = data = RREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_PCIE_MST_CTRL_3);
- data = REG_SET_FIELD(data, BIF_BIF256_CI256_RC3X4_USB4_PCIE_MST_CTRL_3,
- CI_SWUS_MAX_READ_REQUEST_SIZE_MODE, 1);
- data = REG_SET_FIELD(data, BIF_BIF256_CI256_RC3X4_USB4_PCIE_MST_CTRL_3,
- CI_SWUS_MAX_READ_REQUEST_SIZE_PRIV, 1);
+ if (def != data)
+ WREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_PCIE_MST_CTRL_3, data);
- if (def != data)
- WREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_PCIE_MST_CTRL_3, data);
-*/
}
static void nbio_v7_11_update_medium_grain_clock_gating(struct amdgpu_device *adev,