From 9d65b1b4bcf3918164e17365eec169875eef8ee3 Mon Sep 17 00:00:00 2001
From: Shiwu Zhang <shiwu.zhang@amd.com>
Date: Tue, 23 May 2023 12:02:32 +0800
Subject: [PATCH] drm/amdgpu: add the accelerator PCIe class
Add the accelerator PCIe class and match the
class in amdgpu for 0x1002 devices of that class.
From PCI spec:
"PCI Code and ID Assignment, r1.9, sec 1, 1.19"
Signed-off-by: Shiwu Zhang <shiwu.zhang@amd.com>
Acked-by: Lijo Lazar <lijo.lazar@amd.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com> # pci_ids.h
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 2 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 2 +-
drivers/gpu/drm/amd/include/amd_shared.h | 1 -
include/linux/pci_ids.h | 3 +++
4 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index b8a1e4571cd93..8e58d187b1735 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -2044,7 +2044,7 @@ static const struct pci_device_id pciidlist[] = {
.driver_data = CHIP_IP_DISCOVERY },
{ PCI_DEVICE(0x1002, PCI_ANY_ID),
- .class = AMD_ACCELERATOR_PROCESSING << 8,
+ .class = PCI_CLASS_ACCELERATOR_PROCESSING << 8,
.class_mask = 0xffffff,
.driver_data = CHIP_IP_DISCOVERY },
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
index 0f1ca0136f50c..25b4d7f0bd359 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
@@ -57,7 +57,7 @@ void amdgpu_virt_init_setting(struct amdgpu_device *adev)
/* enable virtual display */
if (adev->asic_type != CHIP_ALDEBARAN &&
adev->asic_type != CHIP_ARCTURUS &&
- ((adev->pdev->class >> 8) != AMD_ACCELERATOR_PROCESSING)) {
+ ((adev->pdev->class >> 8) != PCI_CLASS_ACCELERATOR_PROCESSING)) {
if (adev->mode_info.num_crtc == 0)
adev->mode_info.num_crtc = 1;
adev->enable_virtual_display = true;
diff --git a/drivers/gpu/drm/amd/include/amd_shared.h b/drivers/gpu/drm/amd/include/amd_shared.h
index 57d95e2cc54bb..f175e65b853a0 100644
--- a/drivers/gpu/drm/amd/include/amd_shared.h
+++ b/drivers/gpu/drm/amd/include/amd_shared.h
@@ -27,7 +27,6 @@
#define AMD_MAX_USEC_TIMEOUT 1000000 /* 1000 ms */
-#define AMD_ACCELERATOR_PROCESSING 0x1200 /* hardcoded pci class */
/*
* Chip flags
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 45c3d62e616d8..0fbfbda3dc269 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -151,6 +151,9 @@
#define PCI_CLASS_SP_DPIO 0x1100
#define PCI_CLASS_SP_OTHER 0x1180
+#define PCI_BASE_CLASS_ACCELERATOR 0x12
+#define PCI_CLASS_ACCELERATOR_PROCESSING 0x1200
+
#define PCI_CLASS_OTHERS 0xff
/* Vendors and devices. Sort key: vendor first, device next. */
--
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