Re: [PATCH] drm/amdgpu/psp: keep TMR in visible vram region for SRIOV

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Am 28.08.19 um 11:25 schrieb Tianci Yin:
From: "Tianci.Yin" <tianci.yin@xxxxxxx>

Fix compute ring test failure in sriov scenario.

Signed-off-by: Tianci.Yin <tianci.yin@xxxxxxx>
---
  drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 14 ++++++++++----
  drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h |  1 +
  2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index 9f7cc5b..92c68c9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -261,9 +261,15 @@ static int psp_tmr_init(struct psp_context *psp)
  		}
  	}
- ret = amdgpu_bo_create_kernel(psp->adev, tmr_size, PSP_TMR_SIZE,
-				      AMDGPU_GEM_DOMAIN_VRAM,
-				      &psp->tmr_bo, &psp->tmr_mc_addr, NULL);
+	psp->tmr_buf = NULL;
+	if (!amdgpu_sriov_vf(psp->adev))
+		ret = amdgpu_bo_create_kernel(psp->adev, tmr_size, PSP_TMR_SIZE,
+					      AMDGPU_GEM_DOMAIN_VRAM,
+					      &psp->tmr_bo, &psp->tmr_mc_addr, NULL);
+	else
+		ret = amdgpu_bo_create_kernel(psp->adev, tmr_size, PSP_TMR_SIZE,
+					      AMDGPU_GEM_DOMAIN_VRAM,
+					      &psp->tmr_bo, &psp->tmr_mc_addr, &psp->tmr_buf);

Might be better to use a local variable for the CPU pointer instead of duplicating the calling parameters.

BTW: How did you solved the stolen_vga_memory problem I pointed out in the original patch set?

Christian.

return ret;
  }
@@ -1216,7 +1222,7 @@ static int psp_hw_fini(void *handle)
psp_ring_destroy(psp, PSP_RING_TYPE__KM); - amdgpu_bo_free_kernel(&psp->tmr_bo, &psp->tmr_mc_addr, NULL);
+	amdgpu_bo_free_kernel(&psp->tmr_bo, &psp->tmr_mc_addr, &psp->tmr_buf);
  	amdgpu_bo_free_kernel(&psp->fw_pri_bo,
  			      &psp->fw_pri_mc_addr, &psp->fw_pri_buf);
  	amdgpu_bo_free_kernel(&psp->fence_buf_bo,
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
index bc0947f..b73d4aa 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
@@ -171,6 +171,7 @@ struct psp_context
  	/* tmr buffer */
  	struct amdgpu_bo		*tmr_bo;
  	uint64_t			tmr_mc_addr;
+	void				*tmr_buf;
/* asd firmware and buffer */
  	const struct firmware		*asd_fw;

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