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Message-Id: <20230315120726.427486-1-kai.heng.feng@canonical.com>
Date: Wed, 15 Mar 2023 20:07:23 +0800
From: Kai-Heng Feng <kai.heng.feng@...onical.com>
To: alexander.deucher@....com, christian.koenig@....com,
Xinhui.Pan@....com
Cc: Kai-Heng Feng <kai.heng.feng@...onical.com>,
David Airlie <airlied@...il.com>,
Daniel Vetter <daniel@...ll.ch>,
Hawking Zhang <Hawking.Zhang@....com>,
Likun Gao <Likun.Gao@....com>,
Felix Kuehling <Felix.Kuehling@....com>,
Victor Zhao <Victor.Zhao@....com>,
Jack Xiao <Jack.Xiao@....com>, Evan Quan <evan.quan@....com>,
Mario Limonciello <mario.limonciello@....com>,
Lijo Lazar <lijo.lazar@....com>,
YiPeng Chai <YiPeng.Chai@....com>,
Andrey Grodzovsky <andrey.grodzovsky@....com>,
Somalapuram Amaranath <Amaranath.Somalapuram@....com>,
Bokun Zhang <Bokun.Zhang@....com>, Leo Liu <leo.liu@....com>,
Veerabadhran Gopalakrishnan <veerabadhran.gopalakrishnan@....com>,
Richard Gong <richard.gong@....com>,
Kenneth Feng <kenneth.feng@....com>,
Jiansong Chen <Jiansong.Chen@....com>,
amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v2] drm/amdgpu/nv: Apply ASPM quirk on Intel ADL + AMD Navi
S2idle resume freeze can be observed on Intel ADL + AMD WX5500. This is
caused by commit 0064b0ce85bb ("drm/amd/pm: enable ASPM by default").
The root cause is still not clear for now.
So extend and apply the ASPM quirk from commit e02fe3bc7aba
("drm/amdgpu: vi: disable ASPM on Intel Alder Lake based systems"), to
workaround the issue on Navi cards too.
Fixes: 0064b0ce85bb ("drm/amd/pm: enable ASPM by default")
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2458
Reviewed-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Kai-Heng Feng <kai.heng.feng@...onical.com>
---
v2:
- Rename the quirk function.
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 +
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 15 +++++++++++++++
drivers/gpu/drm/amd/amdgpu/nv.c | 2 +-
drivers/gpu/drm/amd/amdgpu/vi.c | 17 +----------------
4 files changed, 18 insertions(+), 17 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 164141bc8b4a..5f3b139c1f99 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1272,6 +1272,7 @@ void amdgpu_device_pci_config_reset(struct amdgpu_device *adev);
int amdgpu_device_pci_reset(struct amdgpu_device *adev);
bool amdgpu_device_need_post(struct amdgpu_device *adev);
bool amdgpu_device_should_use_aspm(struct amdgpu_device *adev);
+bool amdgpu_device_aspm_support_quirk(void);
void amdgpu_cs_report_moved_bytes(struct amdgpu_device *adev, u64 num_bytes,
u64 num_vis_bytes);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index c4a4e2fe6681..05a34ff79e78 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -80,6 +80,10 @@
#include <drm/drm_drv.h>
+#if IS_ENABLED(CONFIG_X86)
+#include <asm/intel-family.h>
+#endif
+
MODULE_FIRMWARE("amdgpu/vega10_gpu_info.bin");
MODULE_FIRMWARE("amdgpu/vega12_gpu_info.bin");
MODULE_FIRMWARE("amdgpu/raven_gpu_info.bin");
@@ -1356,6 +1360,17 @@ bool amdgpu_device_should_use_aspm(struct amdgpu_device *adev)
return pcie_aspm_enabled(adev->pdev);
}
+bool amdgpu_device_aspm_support_quirk(void)
+{
+#if IS_ENABLED(CONFIG_X86)
+ struct cpuinfo_x86 *c = &cpu_data(0);
+
+ return !(c->x86 == 6 && c->x86_model == INTEL_FAM6_ALDERLAKE);
+#else
+ return true;
+#endif
+}
+
/* if we get transitioned to only one device, take VGA back */
/**
* amdgpu_device_vga_set_decode - enable/disable vga decode
diff --git a/drivers/gpu/drm/amd/amdgpu/nv.c b/drivers/gpu/drm/amd/amdgpu/nv.c
index 855d390c41de..26733263913e 100644
--- a/drivers/gpu/drm/amd/amdgpu/nv.c
+++ b/drivers/gpu/drm/amd/amdgpu/nv.c
@@ -578,7 +578,7 @@ static void nv_pcie_gen3_enable(struct amdgpu_device *adev)
static void nv_program_aspm(struct amdgpu_device *adev)
{
- if (!amdgpu_device_should_use_aspm(adev))
+ if (!amdgpu_device_should_use_aspm(adev) || !amdgpu_device_aspm_support_quirk())
return;
if (!(adev->flags & AMD_IS_APU) &&
diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c
index 12ef782eb478..ceab8783575c 100644
--- a/drivers/gpu/drm/amd/amdgpu/vi.c
+++ b/drivers/gpu/drm/amd/amdgpu/vi.c
@@ -81,10 +81,6 @@
#include "mxgpu_vi.h"
#include "amdgpu_dm.h"
-#if IS_ENABLED(CONFIG_X86)
-#include <asm/intel-family.h>
-#endif
-
#define ixPCIE_LC_L1_PM_SUBSTATE 0x100100C6
#define PCIE_LC_L1_PM_SUBSTATE__LC_L1_SUBSTATES_OVERRIDE_EN_MASK 0x00000001L
#define PCIE_LC_L1_PM_SUBSTATE__LC_PCI_PM_L1_2_OVERRIDE_MASK 0x00000002L
@@ -1138,24 +1134,13 @@ static void vi_enable_aspm(struct amdgpu_device *adev)
WREG32_PCIE(ixPCIE_LC_CNTL, data);
}
-static bool aspm_support_quirk_check(void)
-{
-#if IS_ENABLED(CONFIG_X86)
- struct cpuinfo_x86 *c = &cpu_data(0);
-
- return !(c->x86 == 6 && c->x86_model == INTEL_FAM6_ALDERLAKE);
-#else
- return true;
-#endif
-}
-
static void vi_program_aspm(struct amdgpu_device *adev)
{
u32 data, data1, orig;
bool bL1SS = false;
bool bClkReqSupport = true;
- if (!amdgpu_device_should_use_aspm(adev) || !aspm_support_quirk_check())
+ if (!amdgpu_device_should_use_aspm(adev) || !amdgpu_device_aspm_support_quirk())
return;
if (adev->flags & AMD_IS_APU ||
--
2.34.1
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