Why you need to re-program this bit? Regards, Hawking -----Original Message----- From: Flora Cui [mailto:Flora.Cui@xxxxxxx] Sent: Tuesday, February 07, 2017 16:14 To: Zhang, Hawking <Hawking.Zhang at amd.com>; amd-gfx at lists.freedesktop.org Cc: Cui, Flora <Flora.Cui at amd.com> Subject: [PATCH 7/7] drm/amd/gfx6: update gb_addr_config Change-Id: I3b866a719e99af2eed461fd618348ba6a28e1f81 Signed-off-by: Flora Cui <Flora.Cui at amd.com> --- drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c index 765c5e3..782190d 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c @@ -1710,6 +1710,9 @@ static void gfx_v6_0_gpu_init(struct amdgpu_device *adev) gb_addr_config |= 2 << GB_ADDR_CONFIG__ROW_SIZE__SHIFT; break; } + gb_addr_config &= ~GB_ADDR_CONFIG__NUM_SHADER_ENGINES_MASK; + if (adev->gfx.config.max_shader_engines == 2) + gb_addr_config |= 1 << GB_ADDR_CONFIG__NUM_SHADER_ENGINES__SHIFT; adev->gfx.config.gb_addr_config = gb_addr_config; WREG32(mmGB_ADDR_CONFIG, gb_addr_config); -- 2.7.4
