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Fri, 26 Jan 2024 23:55:10 GMT Received: from hu-obabatun-lv.qualcomm.com (10.49.16.6) by nalasex01b.na.qualcomm.com (10.47.209.197) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Fri, 26 Jan 2024 15:55:02 -0800 From: Oreoluwa Babatunde To: , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , Oreoluwa Babatunde Subject: [PATCH 14/46] sh: reserved_mem: Implement the new processing order for reserved memory Date: Fri, 26 Jan 2024 15:53:53 -0800 Message-ID: <20240126235425.12233-15-quic_obabatun@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240126235425.12233-1-quic_obabatun@quicinc.com> References: <20240126235425.12233-1-quic_obabatun@quicinc.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nalasex01b.na.qualcomm.com (10.47.209.197) To nalasex01b.na.qualcomm.com (10.47.209.197) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: xWIxx8I7sp_MTzBvsRofwlpzt5Nk-qWs X-Proofpoint-ORIG-GUID: xWIxx8I7sp_MTzBvsRofwlpzt5Nk-qWs X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-25_14,2024-01-25_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 mlxlogscore=470 priorityscore=1501 bulkscore=0 mlxscore=0 adultscore=0 lowpriorityscore=0 malwarescore=0 clxscore=1015 spamscore=0 suspectscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2401190000 definitions=main-2401260176 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1789199988344886138 X-GMAIL-MSGID: 1789199988344886138 Call early_fdt_scan_reserved_mem() in place of early_init_fdt_scan_reserved_mem() to carry out the first stage of the reserved memory processing only. The early_fdt_scan_reserved_mem() function is used to scan through the DT and mark all the reserved memory regions as reserved or nomap as needed, as well as allocate the memory required by the dynamically-placed reserved memory regions. The second stage of the reserved memory processing is done by fdt_init_reserved_mem(). This function is used to store the information of the statically-placed reserved memory nodes in the reserved_mem array as well as call the region specific initialization function on all the stored reserved memory regions. The call to fdt_init_reserved_mem() is placed right after early_fdt_scan_reserved_mem() because memblock allocated memory should already be writable at this point. Signed-off-by: Oreoluwa Babatunde --- arch/sh/boards/of-generic.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/sh/boards/of-generic.c b/arch/sh/boards/of-generic.c index f7f3e618e85b..7bec409f077c 100644 --- a/arch/sh/boards/of-generic.c +++ b/arch/sh/boards/of-generic.c @@ -8,6 +8,7 @@ #include #include #include +#include #include #include #include @@ -110,7 +111,8 @@ static int noopi(void) static void __init sh_of_mem_reserve(void) { early_init_fdt_reserve_self(); - early_init_fdt_scan_reserved_mem(); + early_fdt_scan_reserved_mem(); + fdt_init_reserved_mem(); } static void __init sh_of_setup(char **cmdline_p)