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From ee9289575e95570caeefc6ffe2c9ef084c27e9b4 Mon Sep 17 00:00:00 2001
From: Huang Rui <ray.huang@amd.com>
Date: Sat, 12 May 2018 12:31:12 +0800
Subject: [PATCH 4579/5725] drm/amdgpu: add checking for sos version
The sos ucode version will be changed to align with the value of
mmMP0_SMN_C2PMSG_58. Then we add a checking for this. Meanwhile, we have to be
compatibility backwards. So it adds serveral recent legacy versions as the white
list for the version checking.
Signed-off-by: Huang Rui <ray.huang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
---
drivers/gpu/drm/amd/amdgpu/psp_v3_1.c | 27 ++++++++++++++++++++++++++-
1 file changed, 26 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v3_1.c b/drivers/gpu/drm/amd/amdgpu/psp_v3_1.c
index 0c768e3..727071f 100644
--- a/drivers/gpu/drm/amd/amdgpu/psp_v3_1.c
+++ b/drivers/gpu/drm/amd/amdgpu/psp_v3_1.c
@@ -47,6 +47,8 @@ MODULE_FIRMWARE("amdgpu/vega20_asd.bin");
#define smnMP1_FIRMWARE_FLAGS 0x3010028
+static uint32_t sos_old_versions[] = {1517616, 1510592, 1448594, 1446554};
+
static int
psp_v3_1_get_fw_type(struct amdgpu_firmware_info *ucode, enum psp_gfx_fw_type *type)
{
@@ -210,12 +212,31 @@ static int psp_v3_1_bootloader_load_sysdrv(struct psp_context *psp)
return ret;
}
+static bool psp_v3_1_match_version(struct amdgpu_device *adev, uint32_t ver)
+{
+ int i;
+
+ if (ver == adev->psp.sos_fw_version)
+ return true;
+
+ /*
+ * Double check if the latest four legacy versions.
+ * If yes, it is still the right version.
+ */
+ for (i = 0; i < sizeof(sos_old_versions) / sizeof(uint32_t); i++) {
+ if (sos_old_versions[i] == adev->psp.sos_fw_version)
+ return true;
+ }
+
+ return false;
+}
+
static int psp_v3_1_bootloader_load_sos(struct psp_context *psp)
{
int ret;
unsigned int psp_gfxdrv_command_reg = 0;
struct amdgpu_device *adev = psp->adev;
- uint32_t sol_reg;
+ uint32_t sol_reg, ver;
/* Check sOS sign of life register to confirm sys driver and sOS
* are already been loaded.
@@ -248,6 +269,10 @@ static int psp_v3_1_bootloader_load_sos(struct psp_context *psp)
RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81),
0, true);
+ ver = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_58);
+ if (!psp_v3_1_match_version(adev, ver))
+ DRM_WARN("SOS version doesn't match\n");
+
return ret;
}
--
2.7.4
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