[PATCH] drm/amdgpu: change the alignment size of TMR BO to 1M

[Zhang, Hawking]

[AMD Official Use Only - General]

Let’s create a new macro PSP_TMR_ALIGNMENT in case we need to support ASIC specific TMR alignment in future.

Regards,
Hawking
From: Wang, Yang(Kevin) <KevinYang.Wang at amd.com>
Date: Friday, September 9, 2022 at 11:14
To: amd-gfx at lists.freedesktop.org <amd-gfx at lists.freedesktop.org>
Cc: Zhang, Hawking <Hawking.Zhang at amd.com>, Wang, Yang(Kevin) <KevinYang.Wang at amd.com>
Subject: [PATCH] drm/amdgpu: change the alignment size of TMR BO to 1M
align TMR BO size TO tmr size is not necessary,
modify the size to 1M to avoid re-create BO fail
when serious VRAM fragmentation.

Signed-off-by: Yang Wang <KevinYang.Wang at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index cfcaf890a6a1..5585cda8d24b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -766,7 +766,7 @@ static int psp_tmr_init(struct psp_context *psp)
         }

         pptr = amdgpu_sriov_vf(psp->adev) ? &tmr_buf : NULL;
-       ret = amdgpu_bo_create_kernel(psp->adev, tmr_size, PSP_TMR_SIZE(psp->adev),
+       ret = amdgpu_bo_create_kernel(psp->adev, tmr_size, SZ_1M,
                                       AMDGPU_GEM_DOMAIN_VRAM,
                                       &psp->tmr_bo, &psp->tmr_mc_addr, pptr);

--
2.25.1
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