From 51bcce4621d86b71d75f8f493d65e83b72748fce Mon Sep 17 00:00:00 2001 From: Hawking Zhang Date: Tue, 31 Jul 2018 15:00:40 +0800 Subject: [PATCH] drm/amdgpu: add module parameter for async_gfx_ring enablement 0 means disable async_gfx_ring and is the default setting 1 means enable async_gfx_ring Signed-off-by: Hawking Zhang Reviewed-by: Jack Xiao Reviewed-by: Alex Deucher Acked-by: Felix Kuehling Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 9 +++++++++ 2 files changed, 10 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 53c2f55b2ffc..221f420c0a74 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -158,6 +158,7 @@ extern uint amdgpu_dm_abm_level; extern struct amdgpu_mgpu_info mgpu_info; extern int amdgpu_ras_enable; extern uint amdgpu_ras_mask; +extern int amdgpu_async_gfx_ring; #ifdef CONFIG_DRM_AMDGPU_SI extern int amdgpu_si_support; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index f4d221ea5779..7a2ba2b420d8 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -136,6 +136,7 @@ int amdgpu_emu_mode = 0; uint amdgpu_smu_memory_pool_size = 0; /* FBC (bit 0) disabled by default*/ uint amdgpu_dc_feature_mask = 0; +int amdgpu_async_gfx_ring = 0; struct amdgpu_mgpu_info mgpu_info = { .mutex = __MUTEX_INITIALIZER(mgpu_info.mutex), @@ -565,6 +566,14 @@ MODULE_PARM_DESC(smu_memory_pool_size, "0x1 = 256Mbyte, 0x2 = 512Mbyte, 0x4 = 1 Gbyte, 0x8 = 2GByte"); module_param_named(smu_memory_pool_size, amdgpu_smu_memory_pool_size, uint, 0444); +/** + * DOC: async_gfx_ring (int) + * It is used to enable gfx rings that could be configured with different prioritites or equal priorities + */ +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 (default), 1 = enabled)"); +module_param_named(async_gfx_ring, amdgpu_async_gfx_ring, int, 0444); + #ifdef CONFIG_HSA_AMD /** * DOC: sched_policy (int) -- 2.20.1