From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 143D279C0 for ; Wed, 30 Nov 2022 18:53:50 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8DA89C433D6; Wed, 30 Nov 2022 18:53:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1669834429; bh=9CdGFcI6NSYYFit7v8Tf2qp4SHvPUavvWg7w2trO2Qg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sAw/78HUK1AnsUqtG8T0h7oj6KhOZWGZ/dMMvwpT9coiMcaKLcfQ3XUZi+mBtDsud paenAF0/u2GUzvc+z+1/cwZErZ4OSXSxvkJG0SWRIKKck0KGRlu5Pa0Gg6usrumrjs zK+axXi2itXDIxugM8I4zaZ19M4Xco3JkzyvL4YI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Eric Huang , Felix Kuehling , Alex Deucher , Sasha Levin Subject: [PATCH 6.0 250/289] drm/amdkfd: Fix a memory limit issue Date: Wed, 30 Nov 2022 19:23:55 +0100 Message-Id: <20221130180549.773768643@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221130180544.105550592@linuxfoundation.org> References: <20221130180544.105550592@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Eric Huang [ Upstream commit 6f9eea4392a178af19360694b1db64f985d0b459 ] It is to resolve a regression, which fails to allocate VRAM due to no free memory in application, the reason is we add check of vram_pin_size for memory limit, and application is pinning the memory for Peerdirect, KFD should not count it in memory limit. So removing vram_pin_size will resolve it. Signed-off-by: Eric Huang Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c index 93ad00453f4b..7db4aef9c45c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c @@ -170,9 +170,7 @@ int amdgpu_amdkfd_reserve_mem_limit(struct amdgpu_device *adev, (kfd_mem_limit.ttm_mem_used + ttm_mem_needed > kfd_mem_limit.max_ttm_mem_limit) || (adev && adev->kfd.vram_used + vram_needed > - adev->gmc.real_vram_size - - atomic64_read(&adev->vram_pin_size) - - reserved_for_pt)) { + adev->gmc.real_vram_size - reserved_for_pt)) { ret = -ENOMEM; goto release; } -- 2.35.1