[AMD Official Use Only - General] Reviewed-and-tested-by: Jiadong Zhu <Jiadong.Zhu@xxxxxxx> -----Original Message----- From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of Alex Deucher Sent: Saturday, June 17, 2023 5:10 AM To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx Cc: Deucher, Alexander <Alexander.Deucher@xxxxxxx> Subject: [PATCH 2/2] drm/amdgpu: enable mcbp by default on gfx9 It's required for high priority queues. Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2535 Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 5 +++++ drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 6 +++--- 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 78c6265fe79b..3eb370b77ad9 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -3677,6 +3677,11 @@ static void amdgpu_device_set_mcbp(struct amdgpu_device *adev) if (amdgpu_mcbp == 1) adev->gfx.mcbp = true; + if ((adev->ip_versions[GC_HWIP][0] >= IP_VERSION(9, 0, 0)) && + (adev->ip_versions[GC_HWIP][0] < IP_VERSION(10, 0, 0)) && + adev->gfx.num_gfx_rings) + adev->gfx.mcbp = true; + if (amdgpu_sriov_vf(adev)) adev->gfx.mcbp = true; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 03874371af60..308149dd7d00 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -180,7 +180,7 @@ uint amdgpu_dc_feature_mask = 2; uint amdgpu_dc_debug_mask; uint amdgpu_dc_visual_confirm; int amdgpu_async_gfx_ring = 1; -int amdgpu_mcbp; +int amdgpu_mcbp = -1; int amdgpu_discovery = -1; int amdgpu_mes; int amdgpu_mes_kiq; @@ -635,10 +635,10 @@ module_param_named(async_gfx_ring, amdgpu_async_gfx_ring, int, 0444); /** * DOC: mcbp (int) - * It is used to enable mid command buffer preemption. (0 = disabled (default), 1 = enabled) + * It is used to enable mid command buffer preemption. (0 = disabled, 1 + = enabled, -1 auto (default)) */ MODULE_PARM_DESC(mcbp, - "Enable Mid-command buffer preemption (0 = disabled (default), 1 = enabled)"); + "Enable Mid-command buffer preemption (0 = disabled, 1 = enabled), -1 += auto (default)"); module_param_named(mcbp, amdgpu_mcbp, int, 0444); /** -- 2.40.1
