Implement support for setting up the VCN doorbell range for
NBIO 7.11.
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/nbio_v7_11.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v7_11.c b/drivers/gpu/drm/amd/amdgpu/nbio_v7_11.c
index a32d9b8ec51b..bcf5fb420fda 100644
--- a/drivers/gpu/drm/amd/amdgpu/nbio_v7_11.c
+++ b/drivers/gpu/drm/amd/amdgpu/nbio_v7_11.c
@@ -100,6 +100,27 @@ static void nbio_v7_11_vpe_doorbell_range(struct amdgpu_device *adev, int instan
WREG32_PCIE_PORT(reg, doorbell_range);
}
+static void nbio_v7_11_vcn_doorbell_range(struct amdgpu_device *adev,
+ bool use_doorbell,
+ int doorbell_index, int instance)
+{
+ u32 reg = SOC15_REG_OFFSET(NBIO, 0, regGDC0_BIF_VCN0_DOORBELL_RANGE);
+ u32 doorbell_range = RREG32_PCIE_PORT(reg);
+
+ if (use_doorbell) {
+ doorbell_range = REG_SET_FIELD(doorbell_range,
+ GDC0_BIF_VCN0_DOORBELL_RANGE, OFFSET,
+ doorbell_index);
+ doorbell_range = REG_SET_FIELD(doorbell_range,
+ GDC0_BIF_VCN0_DOORBELL_RANGE, SIZE, 8);
+ } else {
+ doorbell_range = REG_SET_FIELD(doorbell_range,
+ GDC0_BIF_VCN0_DOORBELL_RANGE, SIZE, 0);
+ }
+
+ WREG32_PCIE_PORT(reg, doorbell_range);
+}
+
static void nbio_v7_11_enable_doorbell_aperture(struct amdgpu_device *adev,
bool enable)
{
@@ -256,6 +277,7 @@ const struct amdgpu_nbio_funcs nbio_v7_11_funcs = {
.mc_access_enable = nbio_v7_11_mc_access_enable,
.get_memsize = nbio_v7_11_get_memsize,
.sdma_doorbell_range = nbio_v7_11_sdma_doorbell_range,
+ .vcn_doorbell_range = nbio_v7_11_vcn_doorbell_range,
.vpe_doorbell_range = nbio_v7_11_vpe_doorbell_range,
.enable_doorbell_aperture = nbio_v7_11_enable_doorbell_aperture,
.enable_doorbell_selfring_aperture = nbio_v7_11_enable_doorbell_selfring_aperture,
--
2.41.0
