From nobody Tue Dec 23 14:20:43 2025 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 710628528E for ; Thu, 1 Feb 2024 19:29:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706815789; cv=none; b=NYft214ZR5bqrJzE6Cwkqof5kT7mmuNhf8c1Rs5PsFKEPwLB+2A/aOJWai1NslRPn0Ys+EkwkBYcImDsll84TPL5/cYcilShB+06SoHqiszdDXv1X0oMrnZoEnA0TWG2d2u0SdOOFu9LAeY2xdhbbqIDEjFOva7Lmk429+Wjl1U= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706815789; c=relaxed/simple; bh=xWMKzJ3E5dP2kBqORp++Jj3aGv9et0AAr3ZkPRCk9II=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=imqiWy1ztj6HO938jd1E32ihZBj+VwbkAFPi/rN226dca1bTHXyo1elRNvPUJdOfEj2MIcdOcylo7QXFMfvUN+VPbRaF3J/SUl286vZgy9NBqrRlSfLRQZrgvoe4/1YRFRPH+miVgNhsdZDGCY2vbAfG6Z3AL5oqqfWVk/DC+YU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=CJvgEKp3; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="CJvgEKp3" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1B7FEC43390; Thu, 1 Feb 2024 19:29:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1706815789; bh=xWMKzJ3E5dP2kBqORp++Jj3aGv9et0AAr3ZkPRCk9II=; h=From:To:Cc:Subject:Date:From; b=CJvgEKp3D2MvQ4Bwk+5UvYK7n6A8dqVdyLCClCiVPTyKKUiZsuKWzbdUeStUUn7yL 8yxzXCM45gXg/EQ5/fH1gwVKFcwU6hjIwcFJOOvellj8UDIWijRlw7R46UXC6r8prp MyijSz+vU+2I/7m53DDNl0Yn+Vm6EiPGLlTiA3ewCjhzNYEGCIhYxtY6bKTK5z1PA6 xM/vmrVxhAFoirEdXjLRgesruO/nB+czXELbFknW1dRigMNZF5IOrSjThJ5ARkYXdP rc2DTwyTdjoptte+horOYpY6VSmXxlrdaaWcixGU7iNSPYdC9Uui0grtMLVZMLH+gf IaMcbrgdK7r8w== From: Rob Herring To: Li Yang Cc: linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] soc: fsl: qbman: Remove RESERVEDMEM_OF_DECLARE usage Date: Thu, 1 Feb 2024 13:29:30 -0600 Message-ID: <20240201192931.1324130-1-robh@kernel.org> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" There is no reason to use RESERVEDMEM_OF_DECLARE() as the initialization hook just saves off the base address and size. Use of RESERVEDMEM_OF_DECLARE() is reserved for non-driver code and initialization which must be done early. For qbman, retrieving the address and size can be done in probe just as easily. Signed-off-by: Rob Herring --- drivers/soc/fsl/qbman/bman_ccsr.c | 27 +++--------- drivers/soc/fsl/qbman/dpaa_sys.c | 12 +++-- drivers/soc/fsl/qbman/dpaa_sys.h | 4 +- drivers/soc/fsl/qbman/qman_ccsr.c | 73 ++++++++++--------------------- 4 files changed, 38 insertions(+), 78 deletions(-) diff --git a/drivers/soc/fsl/qbman/bman_ccsr.c b/drivers/soc/fsl/qbman/bman= _ccsr.c index cb24a08be084..b0f26f6f731e 100644 --- a/drivers/soc/fsl/qbman/bman_ccsr.c +++ b/drivers/soc/fsl/qbman/bman_ccsr.c @@ -144,17 +144,6 @@ static int bm_set_memory(u64 ba, u32 size) static dma_addr_t fbpr_a; static size_t fbpr_sz; =20 -static int bman_fbpr(struct reserved_mem *rmem) -{ - fbpr_a =3D rmem->base; - fbpr_sz =3D rmem->size; - - WARN_ON(!(fbpr_a && fbpr_sz)); - - return 0; -} -RESERVEDMEM_OF_DECLARE(bman_fbpr, "fsl,bman-fbpr", bman_fbpr); - static irqreturn_t bman_isr(int irq, void *ptr) { u32 isr_val, ier_val, ecsr_val, isr_mask, i; @@ -242,17 +231,11 @@ static int fsl_bman_probe(struct platform_device *pde= v) return -ENODEV; } =20 - /* - * If FBPR memory wasn't defined using the qbman compatible string - * try using the of_reserved_mem_device method - */ - if (!fbpr_a) { - ret =3D qbman_init_private_mem(dev, 0, &fbpr_a, &fbpr_sz); - if (ret) { - dev_err(dev, "qbman_init_private_mem() failed 0x%x\n", - ret); - return -ENODEV; - } + ret =3D qbman_init_private_mem(dev, 0, "fsl,bman-fbpr", &fbpr_a, &fbpr_sz= ); + if (ret) { + dev_err(dev, "qbman_init_private_mem() failed 0x%x\n", + ret); + return -ENODEV; } =20 dev_dbg(dev, "Allocated FBPR 0x%llx 0x%zx\n", fbpr_a, fbpr_sz); diff --git a/drivers/soc/fsl/qbman/dpaa_sys.c b/drivers/soc/fsl/qbman/dpaa_= sys.c index 33751450047e..e1d7b79cc450 100644 --- a/drivers/soc/fsl/qbman/dpaa_sys.c +++ b/drivers/soc/fsl/qbman/dpaa_sys.c @@ -34,8 +34,8 @@ /* * Initialize a devices private memory region */ -int qbman_init_private_mem(struct device *dev, int idx, dma_addr_t *addr, - size_t *size) +int qbman_init_private_mem(struct device *dev, int idx, const char *compat, + dma_addr_t *addr, size_t *size) { struct device_node *mem_node; struct reserved_mem *rmem; @@ -44,8 +44,12 @@ int qbman_init_private_mem(struct device *dev, int idx, = dma_addr_t *addr, =20 mem_node =3D of_parse_phandle(dev->of_node, "memory-region", idx); if (!mem_node) { - dev_err(dev, "No memory-region found for index %d\n", idx); - return -ENODEV; + mem_node =3D of_find_compatible_node(NULL, NULL, compat); + if (!mem_node) { + dev_err(dev, "No memory-region found for index %d or compatible '%s'\n", + idx, compat); + return -ENODEV; + } } =20 rmem =3D of_reserved_mem_lookup(mem_node); diff --git a/drivers/soc/fsl/qbman/dpaa_sys.h b/drivers/soc/fsl/qbman/dpaa_= sys.h index ae8afa552b1e..16485bde9636 100644 --- a/drivers/soc/fsl/qbman/dpaa_sys.h +++ b/drivers/soc/fsl/qbman/dpaa_sys.h @@ -101,8 +101,8 @@ static inline u8 dpaa_cyc_diff(u8 ringsize, u8 first, u= 8 last) #define DPAA_GENALLOC_OFF 0x80000000 =20 /* Initialize the devices private memory region */ -int qbman_init_private_mem(struct device *dev, int idx, dma_addr_t *addr, - size_t *size); +int qbman_init_private_mem(struct device *dev, int idx, const char *compat, + dma_addr_t *addr, size_t *size); =20 /* memremap() attributes for different platforms */ #ifdef CONFIG_PPC diff --git a/drivers/soc/fsl/qbman/qman_ccsr.c b/drivers/soc/fsl/qbman/qman= _ccsr.c index 157659fd033a..392e54f14dbe 100644 --- a/drivers/soc/fsl/qbman/qman_ccsr.c +++ b/drivers/soc/fsl/qbman/qman_ccsr.c @@ -468,28 +468,6 @@ static int zero_priv_mem(phys_addr_t addr, size_t sz) =20 return 0; } - -static int qman_fqd(struct reserved_mem *rmem) -{ - fqd_a =3D rmem->base; - fqd_sz =3D rmem->size; - - WARN_ON(!(fqd_a && fqd_sz)); - return 0; -} -RESERVEDMEM_OF_DECLARE(qman_fqd, "fsl,qman-fqd", qman_fqd); - -static int qman_pfdr(struct reserved_mem *rmem) -{ - pfdr_a =3D rmem->base; - pfdr_sz =3D rmem->size; - - WARN_ON(!(pfdr_a && pfdr_sz)); - - return 0; -} -RESERVEDMEM_OF_DECLARE(qman_pfdr, "fsl,qman-pfdr", qman_pfdr); - #endif =20 unsigned int qm_get_fqid_maxcnt(void) @@ -796,39 +774,34 @@ static int fsl_qman_probe(struct platform_device *pde= v) qm_channel_caam =3D QMAN_CHANNEL_CAAM_REV3; } =20 - if (fqd_a) { + /* + * Order of memory regions is assumed as FQD followed by PFDR + * in order to ensure allocations from the correct regions the + * driver initializes then allocates each piece in order + */ + ret =3D qbman_init_private_mem(dev, 0, "fsl,qman-fqd", &fqd_a, &fqd_sz); + if (ret) { + dev_err(dev, "qbman_init_private_mem() for FQD failed 0x%x\n", + ret); + return -ENODEV; + } #ifdef CONFIG_PPC - /* - * For PPC backward DT compatibility - * FQD memory MUST be zero'd by software - */ - zero_priv_mem(fqd_a, fqd_sz); + /* + * For PPC backward DT compatibility + * FQD memory MUST be zero'd by software + */ + zero_priv_mem(fqd_a, fqd_sz); #else - WARN(1, "Unexpected architecture using non shared-dma-mem reservations"); + WARN(1, "Unexpected architecture using non shared-dma-mem reservations"); #endif - } else { - /* - * Order of memory regions is assumed as FQD followed by PFDR - * in order to ensure allocations from the correct regions the - * driver initializes then allocates each piece in order - */ - ret =3D qbman_init_private_mem(dev, 0, &fqd_a, &fqd_sz); - if (ret) { - dev_err(dev, "qbman_init_private_mem() for FQD failed 0x%x\n", - ret); - return -ENODEV; - } - } dev_dbg(dev, "Allocated FQD 0x%llx 0x%zx\n", fqd_a, fqd_sz); =20 - if (!pfdr_a) { - /* Setup PFDR memory */ - ret =3D qbman_init_private_mem(dev, 1, &pfdr_a, &pfdr_sz); - if (ret) { - dev_err(dev, "qbman_init_private_mem() for PFDR failed 0x%x\n", - ret); - return -ENODEV; - } + /* Setup PFDR memory */ + ret =3D qbman_init_private_mem(dev, 1, "fsl,qman-pfdr", &pfdr_a, &pfdr_sz= ); + if (ret) { + dev_err(dev, "qbman_init_private_mem() for PFDR failed 0x%x\n", + ret); + return -ENODEV; } dev_dbg(dev, "Allocated PFDR 0x%llx 0x%zx\n", pfdr_a, pfdr_sz); =20 --=20 2.43.0