From: Le Ma <[email protected]> The bit RSVD_ENG0 to RSVD_ENG5 in GPU_HDP_FLUSH_REQ/GPU_HDP_FLUSH_DONE can be leveraged for sdma instance 2~7 to poll register/memory.
Signed-off-by: Le Ma <[email protected]> Acked-by: Snow Zhang < [email protected]> Signed-off-by: Alex Deucher <[email protected]> --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 6 ++++++ drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c | 17 +++++++++++++++++ drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | 5 +---- 3 files changed, 24 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 8575ed6713c3..e9c386cec2ad 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -651,6 +651,12 @@ struct nbio_hdp_flush_reg { u32 ref_and_mask_cp9; u32 ref_and_mask_sdma0; u32 ref_and_mask_sdma1; + u32 ref_and_mask_sdma2; + u32 ref_and_mask_sdma3; + u32 ref_and_mask_sdma4; + u32 ref_and_mask_sdma5; + u32 ref_and_mask_sdma6; + u32 ref_and_mask_sdma7; }; struct amdgpu_mmio_remap { diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c b/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c index bfaaa327ae3c..2e1098c5c32b 100644 --- a/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c +++ b/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c @@ -31,6 +31,17 @@ #define smnNBIF_MGCG_CTRL_LCLK 0x1013a21c +/* + * These are nbio v7_4_1 registers mask. Temporarily define these here since + * nbio v7_4_1 header is incomplete. + */ +#define GPU_HDP_FLUSH_DONE__RSVD_ENG0_MASK 0x00001000L +#define GPU_HDP_FLUSH_DONE__RSVD_ENG1_MASK 0x00002000L +#define GPU_HDP_FLUSH_DONE__RSVD_ENG2_MASK 0x00004000L +#define GPU_HDP_FLUSH_DONE__RSVD_ENG3_MASK 0x00008000L +#define GPU_HDP_FLUSH_DONE__RSVD_ENG4_MASK 0x00010000L +#define GPU_HDP_FLUSH_DONE__RSVD_ENG5_MASK 0x00020000L + static void nbio_v7_4_remap_hdp_registers(struct amdgpu_device *adev) { WREG32_SOC15(NBIO, 0, mmREMAP_HDP_MEM_FLUSH_CNTL, @@ -220,6 +231,12 @@ static const struct nbio_hdp_flush_reg nbio_v7_4_hdp_flush_reg = { .ref_and_mask_cp9 = GPU_HDP_FLUSH_DONE__CP9_MASK, .ref_and_mask_sdma0 = GPU_HDP_FLUSH_DONE__SDMA0_MASK, .ref_and_mask_sdma1 = GPU_HDP_FLUSH_DONE__SDMA1_MASK, + .ref_and_mask_sdma2 = GPU_HDP_FLUSH_DONE__RSVD_ENG0_MASK, + .ref_and_mask_sdma3 = GPU_HDP_FLUSH_DONE__RSVD_ENG1_MASK, + .ref_and_mask_sdma4 = GPU_HDP_FLUSH_DONE__RSVD_ENG2_MASK, + .ref_and_mask_sdma5 = GPU_HDP_FLUSH_DONE__RSVD_ENG3_MASK, + .ref_and_mask_sdma6 = GPU_HDP_FLUSH_DONE__RSVD_ENG4_MASK, + .ref_and_mask_sdma7 = GPU_HDP_FLUSH_DONE__RSVD_ENG5_MASK, }; static void nbio_v7_4_detect_hw_virt(struct amdgpu_device *adev) diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c index 1dce974e0c58..fc01502baf00 100644 --- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c @@ -627,10 +627,7 @@ static void sdma_v4_0_ring_emit_hdp_flush(struct amdgpu_ring *ring) u32 ref_and_mask = 0; const struct nbio_hdp_flush_reg *nbio_hf_reg = adev->nbio_funcs->hdp_flush_reg; - if (ring->me == 0) - ref_and_mask = nbio_hf_reg->ref_and_mask_sdma0; - else - ref_and_mask = nbio_hf_reg->ref_and_mask_sdma1; + ref_and_mask = nbio_hf_reg->ref_and_mask_sdma0 << ring->me; sdma_v4_0_wait_reg_mem(ring, 0, 1, adev->nbio_funcs->get_hdp_flush_done_offset(adev), -- 2.20.1 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
