From 5d12e175d17ad0ec7cf4338af5ab0592b81541e2 Mon Sep 17 00:00:00 2001
From: Yongqiang Sun <yongqiang.sun@amd.com>
Date: Tue, 15 Mar 2022 09:43:41 -0400
Subject: drm/amdgpu: Add stolen reserved memory for MI25 SRIOV.
Git-commit: faad5ccac1eaae584f9ac2ea66278bd137edcbe3
Patch-mainline: v5.18-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225

MI25 SRIOV guest driver loading failed due to allocated memory overlaps
with firmware reserved area.
Allocate stolen reserved memory for MI25 SRIOV specifically to avoid the
memory overlap.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
index a25ae3b51256..ca2cfb65f976 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
@@ -639,6 +639,15 @@ void amdgpu_gmc_get_vbios_allocations(struct amdgpu_device *adev)
 	 */
 	switch (adev->asic_type) {
 	case CHIP_VEGA10:
+		adev->mman.keep_stolen_vga_memory = true;
+		/*
+		 * VEGA10 SRIOV VF needs some firmware reserved area.
+		 */
+		if (amdgpu_sriov_vf(adev)) {
+			adev->mman.stolen_reserved_offset = 0x100000;
+			adev->mman.stolen_reserved_size = 0x600000;
+		}
+		break;
 	case CHIP_RAVEN:
 	case CHIP_RENOIR:
 		adev->mman.keep_stolen_vga_memory = true;
-- 
2.38.1