From a17a025d3986aefd8caeaf4d3b59f2747c221527 Mon Sep 17 00:00:00 2001
From: Wenhui Sheng <Wenhui.Sheng@amd.com>
Date: Tue, 14 Jul 2020 16:29:18 +0800
Subject: drm/amdgpu: add module parameter choose reset mode
Git-commit: 273da6ff7ce8727e02d6e67f77eb98df4627f60b
Patch-mainline: v5.9-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
Default value is auto, doesn't change
original reset method logic.
v2: change to use parameter reset_method
v3: add warn msg if specified mode isn't supported
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Signed-off-by: Wenhui Sheng <Wenhui.Sheng@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 +
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 8 ++++++++
drivers/gpu/drm/amd/amdgpu/cik.c | 8 ++++++++
drivers/gpu/drm/amd/amdgpu/nv.c | 8 ++++++++
drivers/gpu/drm/amd/amdgpu/si.c | 5 +++++
drivers/gpu/drm/amd/amdgpu/soc15.c | 9 +++++++++
drivers/gpu/drm/amd/amdgpu/vi.c | 8 ++++++++
7 files changed, 47 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index c99df80d62eb..327a0daf4a1d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -193,6 +193,7 @@ static const bool debug_evictions; /* = false */
#endif
extern int amdgpu_tmz;
+extern int amdgpu_reset_method;
#ifdef CONFIG_DRM_AMDGPU_SI
extern int amdgpu_si_support;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 2f12f3ae3c7f..2eacf1f51bbf 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -149,6 +149,7 @@ int amdgpu_mes = 0;
int amdgpu_noretry;
int amdgpu_force_asic_type = -1;
int amdgpu_tmz = 0;
+int amdgpu_reset_method = -1; /* auto */
struct amdgpu_mgpu_info mgpu_info = {
.mutex = __MUTEX_INITIALIZER(mgpu_info.mutex),
@@ -757,6 +758,13 @@ module_param_named(abmlevel, amdgpu_dm_abm_level, uint, 0444);
MODULE_PARM_DESC(tmz, "Enable TMZ feature (-1 = auto, 0 = off (default), 1 = on)");
module_param_named(tmz, amdgpu_tmz, int, 0444);
+/**
+ * DOC: reset_method (int)
+ * GPU reset method (-1 = auto (default), 0 = legacy, 1 = mode0, 2 = mode1, 3 = mode2, 4 = baco)
+ */
+MODULE_PARM_DESC(reset_method, "GPU reset method (-1 = auto (default), 0 = legacy, 1 = mode0, 2 = mode1, 3 = mode2, 4 = baco)");
+module_param_named(reset_method, amdgpu_reset_method, int, 0444);
+
static const struct pci_device_id pciidlist[] = {
#ifdef CONFIG_DRM_AMDGPU_SI
{0x1002, 0x6780, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TAHITI},
diff --git a/drivers/gpu/drm/amd/amdgpu/cik.c b/drivers/gpu/drm/amd/amdgpu/cik.c
index fe306d0f73f7..c2c67ab68a43 100644
--- a/drivers/gpu/drm/amd/amdgpu/cik.c
+++ b/drivers/gpu/drm/amd/amdgpu/cik.c
@@ -1326,6 +1326,14 @@ cik_asic_reset_method(struct amdgpu_device *adev)
{
bool baco_reset;
+ if (amdgpu_reset_method == AMD_RESET_METHOD_LEGACY ||
+ amdgpu_reset_method == AMD_RESET_METHOD_BACO)
+ return amdgpu_reset_method;
+
+ if (amdgpu_reset_method != -1)
+ dev_warn(adev->dev, "Specified reset:%d isn't supported, using AUTO instead.\n",
+ amdgpu_reset_method);
+
switch (adev->asic_type) {
case CHIP_BONAIRE:
case CHIP_HAWAII:
diff --git a/drivers/gpu/drm/amd/amdgpu/nv.c b/drivers/gpu/drm/amd/amdgpu/nv.c
index 9f1240bd0310..aa3101ab70eb 100644
--- a/drivers/gpu/drm/amd/amdgpu/nv.c
+++ b/drivers/gpu/drm/amd/amdgpu/nv.c
@@ -311,6 +311,14 @@ nv_asic_reset_method(struct amdgpu_device *adev)
{
struct smu_context *smu = &adev->smu;
+ if (amdgpu_reset_method == AMD_RESET_METHOD_MODE1 ||
+ amdgpu_reset_method == AMD_RESET_METHOD_BACO)
+ return amdgpu_reset_method;
+
+ if (amdgpu_reset_method != -1)
+ dev_warn(adev->dev, "Specified reset method:%d isn't supported, using AUTO instead.\n",
+ amdgpu_reset_method);
+
if (smu_baco_is_support(smu))
return AMD_RESET_METHOD_BACO;
else
diff --git a/drivers/gpu/drm/amd/amdgpu/si.c b/drivers/gpu/drm/amd/amdgpu/si.c
index 9d7b4ccd17b8..1b449291f068 100644
--- a/drivers/gpu/drm/amd/amdgpu/si.c
+++ b/drivers/gpu/drm/amd/amdgpu/si.c
@@ -1229,6 +1229,11 @@ static bool si_asic_supports_baco(struct amdgpu_device *adev)
static enum amd_reset_method
si_asic_reset_method(struct amdgpu_device *adev)
{
+ if (amdgpu_reset_method != AMD_RESET_METHOD_LEGACY &&
+ amdgpu_reset_method != -1)
+ dev_warn(adev->dev, "Specified reset method:%d isn't supported, using AUTO instead.\n",
+ amdgpu_reset_method);
+
return AMD_RESET_METHOD_LEGACY;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c
index 8c739b285915..84d811b6e48b 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc15.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
@@ -532,6 +532,15 @@ soc15_asic_reset_method(struct amdgpu_device *adev)
bool baco_reset = false;
struct amdgpu_ras *ras = amdgpu_ras_get_context(adev);
+ if (amdgpu_reset_method == AMD_RESET_METHOD_MODE1 ||
+ amdgpu_reset_method == AMD_RESET_METHOD_MODE2 ||
+ amdgpu_reset_method == AMD_RESET_METHOD_BACO)
+ return amdgpu_reset_method;
+
+ if (amdgpu_reset_method != -1)
+ dev_warn(adev->dev, "Specified reset method:%d isn't supported, using AUTO instead.\n",
+ amdgpu_reset_method);
+
switch (adev->asic_type) {
case CHIP_RAVEN:
case CHIP_RENOIR:
diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c
index 4e5e91888d87..f6f2ed0830b1 100644
--- a/drivers/gpu/drm/amd/amdgpu/vi.c
+++ b/drivers/gpu/drm/amd/amdgpu/vi.c
@@ -710,6 +710,14 @@ vi_asic_reset_method(struct amdgpu_device *adev)
{
bool baco_reset;
+ if (amdgpu_reset_method == AMD_RESET_METHOD_LEGACY ||
+ amdgpu_reset_method == AMD_RESET_METHOD_BACO)
+ return amdgpu_reset_method;
+
+ if (amdgpu_reset_method != -1)
+ dev_warn(adev->dev, "Specified reset method:%d isn't supported, using AUTO instead.\n",
+ amdgpu_reset_method);
+
switch (adev->asic_type) {
case CHIP_FIJI:
case CHIP_TONGA:
--
2.29.2