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drm/amdgpu: support hdp flush for more sdma instances 

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 <le.ma@amd.com>
Acked-by: Snow Zhang < Snow.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Le Ma 2018-09-10 19:51:07 +08:00 committed by Alex Deucher
parent b482a134ad
commit 0fe6a7b49f
3 changed files with 24 additions and 4 deletions
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6
drivers/gpu/drm/amd/amdgpu/amdgpu.h
View File

@ -648,6 +648,12 @@ 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 {

17
drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c
View File

@ -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)

5
drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
View File

@ -630,10 +630,7 @@ 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),