From: Jack Xiao <[email protected]> Add mcbp driver parameter, so that mcbp feature can be enabled/disabled by driver parameter.
Acked-by: Hawking Zhang <[email protected]> Signed-off-by: Jack Xiao <[email protected]> Signed-off-by: Alex Deucher <[email protected]> --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 3 +++ drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 5 +++++ 3 files changed, 9 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index d34380a27b14..49c6f99b6ab7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -159,6 +159,7 @@ extern struct amdgpu_mgpu_info mgpu_info; extern int amdgpu_ras_enable; extern uint amdgpu_ras_mask; extern int amdgpu_async_gfx_ring; +extern int amdgpu_mcbp; #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 6f22e77f908f..82bf23ef1769 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -2574,6 +2574,9 @@ int amdgpu_device_init(struct amdgpu_device *adev, amdgpu_device_get_pcie_info(adev); + if (amdgpu_mcbp) + DRM_INFO("MCBP is enabled\n"); + /* early init functions */ r = amdgpu_device_ip_early_init(adev); if (r) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 9d172b37b1f7..00753f9b8b52 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -137,6 +137,7 @@ uint amdgpu_smu_memory_pool_size = 0; /* FBC (bit 0) disabled by default*/ uint amdgpu_dc_feature_mask = 0; int amdgpu_async_gfx_ring = 1; +int amdgpu_mcbp = 0; struct amdgpu_mgpu_info mgpu_info = { .mutex = __MUTEX_INITIALIZER(mgpu_info.mutex), @@ -574,6 +575,10 @@ MODULE_PARM_DESC(async_gfx_ring, "Asynchronous GFX rings that could be configured with either different priorities (HP3D ring and LP3D ring), or equal priorities (0 = disabled, 1 = enabled (default))"); module_param_named(async_gfx_ring, amdgpu_async_gfx_ring, int, 0444); +MODULE_PARM_DESC(mcbp, + "Enable Mid-command buffer preemption (0 = disabled (default), 1 = enabled)"); +module_param_named(mcbp, amdgpu_mcbp, int, 0444); + #ifdef CONFIG_HSA_AMD /** * DOC: sched_policy (int) -- 2.20.1 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
