Add function to support VCN_4_0_2 doorbell
Signed-off-by: Sonny Jiang <sonny.jiang@xxxxxxx>
Reviewed-by: James Zhu <James.Zhu@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/nbio_v7_7.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v7_7.c b/drivers/gpu/drm/amd/amdgpu/nbio_v7_7.c
index e786b825cea9..01e8288d09a8 100644
--- a/drivers/gpu/drm/amd/amdgpu/nbio_v7_7.c
+++ b/drivers/gpu/drm/amd/amdgpu/nbio_v7_7.c
@@ -83,6 +83,26 @@ static void nbio_v7_7_sdma_doorbell_range(struct amdgpu_device *adev, int instan
WREG32_PCIE_PORT(reg, doorbell_range);
}
+static void nbio_v7_7_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_7_enable_doorbell_aperture(struct amdgpu_device *adev,
bool enable)
{
@@ -238,6 +258,7 @@ const struct amdgpu_nbio_funcs nbio_v7_7_funcs = {
.mc_access_enable = nbio_v7_7_mc_access_enable,
.get_memsize = nbio_v7_7_get_memsize,
.sdma_doorbell_range = nbio_v7_7_sdma_doorbell_range,
+ .vcn_doorbell_range = nbio_v7_7_vcn_doorbell_range,
.enable_doorbell_aperture = nbio_v7_7_enable_doorbell_aperture,
.enable_doorbell_selfring_aperture = nbio_v7_7_enable_doorbell_selfring_aperture,
.ih_doorbell_range = nbio_v7_7_ih_doorbell_range,
--
2.36.1
