drm/amdgpu/discovery: add module param for ip discovery enablement

to control 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>
This commit is contained in:
Xiaojie Yuan 2019-03-27 12:39:18 +08:00 committed by Alex Deucher
parent 966f1d8fd0
commit a190d1c75c
3 changed files with 16 additions and 0 deletions

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@ -161,6 +161,7 @@ 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;

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@ -2578,6 +2578,14 @@ 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)
@ -2838,6 +2846,8 @@ void amdgpu_device_fini(struct amdgpu_device *adev)
amdgpu_ucode_sysfs_fini(adev);
amdgpu_pmu_fini(adev);
amdgpu_debugfs_preempt_cleanup(adev);
if (amdgpu_discovery)
amdgpu_discovery_fini(adev);
}

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@ -138,6 +138,7 @@ 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),
@ -579,6 +580,10 @@ 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);
#ifdef CONFIG_HSA_AMD
/**
* DOC: sched_policy (int)