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