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From 67bccfb07fb96ba67494f2e8ee852752e4808efb Mon Sep 17 00:00:00 2001
From: Xiaojie Yuan <xiaojie.yuan@amd.com>
Date: Wed, 27 Mar 2019 12:39:18 +0800
Subject: [PATCH 2233/2940] drm/amdgpu/discovery: add module param for ip
discovery enablement
Signed-off-by: Xiaojie Yuan <xiaojie.yuan@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 +
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 10 ++++++++++
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 5 +++++
3 files changed, 16 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index e6597318cc30..b187c052117d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -164,6 +164,7 @@ extern int amdgpu_ras_enable;
extern uint amdgpu_ras_mask;
extern int amdgpu_async_gfx_ring;
extern int amdgpu_mcbp;
+extern int amdgpu_discovery;
#ifdef CONFIG_DRM_AMDGPU_SI
extern int amdgpu_si_support;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 73d1f84640f1..5c46c150a962 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2566,6 +2566,14 @@ int amdgpu_device_init(struct amdgpu_device *adev,
if (amdgpu_mcbp)
DRM_INFO("MCBP is enabled\n");
+ if (amdgpu_discovery) {
+ r = amdgpu_discovery_init(adev);
+ if (r) {
+ dev_err(adev->dev, "amdgpu_discovery_init failed\n");
+ return r;
+ }
+ }
+
/* early init functions */
r = amdgpu_device_ip_early_init(adev);
if (r)
@@ -2842,6 +2850,8 @@ void amdgpu_device_fini(struct amdgpu_device *adev)
device_remove_file(adev->dev, &dev_attr_pcie_replay_count);
amdgpu_ucode_sysfs_fini(adev);
amdgpu_debugfs_preempt_cleanup(adev);
+ if (amdgpu_discovery)
+ amdgpu_discovery_fini(adev);
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 93afc2f1c5e4..8fa4d0437212 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -143,6 +143,7 @@ uint amdgpu_smu_memory_pool_size = 0;
uint amdgpu_dc_feature_mask = 0;
int amdgpu_async_gfx_ring = 1;
int amdgpu_mcbp = 0;
+int amdgpu_discovery = 0;
struct amdgpu_mgpu_info mgpu_info = {
.mutex = __MUTEX_INITIALIZER(mgpu_info.mutex),
@@ -591,6 +592,10 @@ MODULE_PARM_DESC(mcbp,
"Enable Mid-command buffer preemption (0 = disabled (default), 1 = enabled)");
module_param_named(mcbp, amdgpu_mcbp, int, 0444);
+MODULE_PARM_DESC(discovery,
+ "Allow driver to discover hardware IPs from IP Discovery table at the top of VRAM");
+module_param_named(discovery, amdgpu_discovery, int, 0444);
+
/**
* DOC: dcfeaturemask (uint)
* Override display features enabled. See enum DC_FEATURE_MASK in drivers/gpu/drm/amd/include/amd_shared.h.
--
2.17.1
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