From: jsg <jsg@openbsd.org>
Date: Mon, 4 Mar 2024 02:13:13 +0000 (+0000)
Subject: drm/amdgpu: Fix HDP flush for VFs on nbio v7.9
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=7f7fc57a92464cc7f5a32d51edabcc64fb349803;p=openbsd

drm/amdgpu: Fix HDP flush for VFs on nbio v7.9

From Lijo Lazar
c19453cc16ad5d90f9ed40686203103e57085580 in linux-6.6.y/6.6.19
534c8a5b9d5d41d30cdcac93cfa1bca5e17be009 in mainline linux
---

diff --git a/sys/dev/pci/drm/amd/amdgpu/nbio_v7_9.c b/sys/dev/pci/drm/amd/amdgpu/nbio_v7_9.c
index 48effaa2d6d..4fd03d4bd22 100644
--- a/sys/dev/pci/drm/amd/amdgpu/nbio_v7_9.c
+++ b/sys/dev/pci/drm/amd/amdgpu/nbio_v7_9.c
@@ -426,6 +426,12 @@ static void nbio_v7_9_init_registers(struct amdgpu_device *adev)
 	u32 inst_mask;
 	int i;
 
+	if (amdgpu_sriov_vf(adev))
+		adev->rmmio_remap.reg_offset =
+			SOC15_REG_OFFSET(
+				NBIO, 0,
+				regBIF_BX_DEV0_EPF0_VF0_HDP_MEM_COHERENCY_FLUSH_CNTL)
+			<< 2;
 	WREG32_SOC15(NBIO, 0, regXCC_DOORBELL_FENCE,
 		0xff & ~(adev->gfx.xcc_mask));