linux-kernel - [PATCH AUTOSEL 5.19 08/16] drm/amdgpu: change the alignment size of TMR BO to 1M

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Date:   Wed, 21 Sep 2022 11:53:24 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Yang Wang <KevinYang.Wang@....com>,
        Hawking Zhang <Hawking.Zhang@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Sasha Levin <sashal@...nel.org>, christian.koenig@....com,
        Xinhui.Pan@....com, airlied@...ux.ie, daniel@...ll.ch,
        Likun.Gao@....com, john.clements@....com, tao.zhou1@....com,
        candice.li@....com, guchun.chen@....com, Bokun.Zhang@....com,
        andrey.grodzovsky@....com, Xiaojian.Du@....com,
        amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org
Subject: [PATCH AUTOSEL 5.19 08/16] drm/amdgpu: change the alignment size of TMR BO to 1M

From: Yang Wang <KevinYang.Wang@....com>

[ Upstream commit 36de13fdb04abef3ee03ade5129ab146de63983b ]

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.

v2:
add new macro PSP_TMR_ALIGNMENT for TMR BO alignment size

Signed-off-by: Yang Wang <KevinYang.Wang@....com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 2 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index 2b00f8fe15a8..7b8d4484c3c4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -748,7 +748,7 @@ 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, PSP_TMR_ALIGNMENT,
 				      AMDGPU_GEM_DOMAIN_VRAM,
 				      &psp->tmr_bo, &psp->tmr_mc_addr, pptr);
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
index e431f4994931..cd366c7f311f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
@@ -36,6 +36,7 @@
 #define PSP_CMD_BUFFER_SIZE	0x1000
 #define PSP_1_MEG		0x100000
 #define PSP_TMR_SIZE(adev)	((adev)->asic_type == CHIP_ALDEBARAN ? 0x800000 : 0x400000)
+#define PSP_TMR_ALIGNMENT	0x100000
 #define PSP_FW_NAME_LEN		0x24
 
 enum psp_shared_mem_size {
-- 
2.35.1