From patchwork Fri Dec 8 16:12:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Gregory CLEMENT X-Patchwork-Id: 13485612 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="lHcuhmuK" Received: from relay5-d.mail.gandi.net (relay5-d.mail.gandi.net [IPv6:2001:4b98:dc4:8::225]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1C2A01989; Fri, 8 Dec 2023 08:12:55 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPSA id B2FBF1C0002; Fri, 8 Dec 2023 16:12:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1702051974; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=F1EYqlVYF1fJ33cC2a0Mertg3uhTJJ/NIkImZDHepJg=; b=lHcuhmuKBGK5IAcxAaYiljE7+sInWwTIAtnUhrJfS30lsaqypgvAJalyTooge5norCGBdr xKi1+c60B3ZfSG9pHNSvQDWTSDMyik3eim3oCfSLxazg/n37CIQUWlLPIL3PHsw4fgfhRp Z3MIkKKsCPKMwaZ4qQqIOm1BC91xjcPOXCu/mP6FoV0MOgVU5PZ3POGfyk41fN1p8Q8sro w51pPQ6LWOqDNCT3L8/Br8IOyxrfWJpdnfKhaaEobxnZZU+RQ1iEAPnAcn+Aef7VIAszrg BXcL272vbScLfxSiZb++7yvIQLE+gCsbmCXyIGfsA9Ty8NykKsTa7R4nKPrVHw== From: Gregory CLEMENT To: Paul Burton , Thomas Bogendoerfer , linux-mips@vger.kernel.org, Jiaxun Yang , Rob Herring , Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Vladimir Kondratiev , Tawfik Bayouk , Alexandre Belloni , =?utf-8?q?Th=C3=A9o_Lebr?= =?utf-8?q?un?= , Thomas Petazzoni , Gregory CLEMENT , =?utf-8?q?Philippe_Mathieu-D?= =?utf-8?q?aud=C3=A9?= , Florian Fainelli Subject: [PATCH v4 01/22] MIPS: compressed: Use correct instruction for 64 bit code Date: Fri, 8 Dec 2023 17:12:17 +0100 Message-ID: <20231208161249.1827174-2-gregory.clement@bootlin.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231208161249.1827174-1-gregory.clement@bootlin.com> References: <20231208161249.1827174-1-gregory.clement@bootlin.com> Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: gregory.clement@bootlin.com The code clearing BSS already use macro or use correct instruction depending if the CPU is 32 bits or 64 bits. However, a few instructions remained 32 bits only. By using the accurate MACRO, it is now possible to deal with memory address beyond 32 bits. As a side effect, when using 64bits processor, it also divides the loop number needed to clear the BSS by 2. Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Florian Fainelli Signed-off-by: Gregory CLEMENT --- arch/mips/boot/compressed/head.S | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/mips/boot/compressed/head.S b/arch/mips/boot/compressed/head.S index 5795d0af1e1b2..d237a834b85ee 100644 --- a/arch/mips/boot/compressed/head.S +++ b/arch/mips/boot/compressed/head.S @@ -25,8 +25,8 @@ /* Clear BSS */ PTR_LA a0, _edata PTR_LA a2, _end -1: sw zero, 0(a0) - addiu a0, a0, 4 +1: PTR_S zero, 0(a0) + PTR_ADDIU a0, a0, PTRSIZE bne a2, a0, 1b PTR_LA a0, (.heap) /* heap address */ From patchwork Fri Dec 8 16:12:18 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gregory CLEMENT X-Patchwork-Id: 13485613 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="mH9paY0I" Received: from relay9-d.mail.gandi.net (relay9-d.mail.gandi.net [217.70.183.199]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C3050198E; Fri, 8 Dec 2023 08:12:56 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPSA id B1A1AFF806; Fri, 8 Dec 2023 16:12:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1702051975; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=1f+FndhwKpT84ogIpFFowDtfhlo7ZPzn2H3k9c4MjvQ=; b=mH9paY0INwCSHRRvr0ILwz0hCbBShsbJrUhXHRHvhPuXUX3/mFDZec6v/klIEIHeoxQ/17 VILKSFM/h5tcp/8skT3xrMypgkOoIC1tCsYvmERxxJ5QEuZDY9BFOHnNVio4C1oy0ZUayr JRQZfgE5HIIFG2XBb1aBCecj9wEBS1BkmKiAtro6Ns1DThqSdfDTjMRBx1VMXaLawi2a3o ySSg2AO8RbWLD30ma7wOJ1lJozjH2t3sg0qn8mchrlJ7lSirrVqi5Lr8vyS6yitFotmikd 5oWrcYdVXkMIDBG0X/x6JvEsBQPC/SPzOzcB2+T8TtHrzUlZerk2eq2VeNprvA== From: Gregory CLEMENT To: Paul Burton , Thomas Bogendoerfer , linux-mips@vger.kernel.org, Jiaxun Yang , Rob Herring , Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Vladimir Kondratiev , Tawfik Bayouk , Alexandre Belloni , =?utf-8?q?Th=C3=A9o_Lebr?= =?utf-8?q?un?= , Thomas Petazzoni Subject: [PATCH v4 02/22] MIPS: Export higher/highest relocation functions in uasm Date: Fri, 8 Dec 2023 17:12:18 +0100 Message-ID: <20231208161249.1827174-3-gregory.clement@bootlin.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231208161249.1827174-1-gregory.clement@bootlin.com> References: <20231208161249.1827174-1-gregory.clement@bootlin.com> Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: gregory.clement@bootlin.com From: Jiaxun Yang Export uasm_rel_{higher,highest} functions. Those functions can be helpful in dealing with 64bit immediates. Signed-off-by: Jiaxun Yang --- arch/mips/include/asm/uasm.h | 2 ++ arch/mips/mm/uasm.c | 6 ++++-- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/mips/include/asm/uasm.h b/arch/mips/include/asm/uasm.h index 296bcf31abb57..12db6d2fca070 100644 --- a/arch/mips/include/asm/uasm.h +++ b/arch/mips/include/asm/uasm.h @@ -196,6 +196,8 @@ void uasm_build_label(struct uasm_label **lab, u32 *addr, #ifdef CONFIG_64BIT int uasm_in_compat_space_p(long addr); #endif +int uasm_rel_highest(long val); +int uasm_rel_higher(long val); int uasm_rel_hi(long val); int uasm_rel_lo(long val); void UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr); diff --git a/arch/mips/mm/uasm.c b/arch/mips/mm/uasm.c index 125140979d62c..6846bf2084c5e 100644 --- a/arch/mips/mm/uasm.c +++ b/arch/mips/mm/uasm.c @@ -425,7 +425,7 @@ int uasm_in_compat_space_p(long addr) } UASM_EXPORT_SYMBOL(uasm_in_compat_space_p); -static int uasm_rel_highest(long val) +int uasm_rel_highest(long val) { #ifdef CONFIG_64BIT return ((((val + 0x800080008000L) >> 48) & 0xffff) ^ 0x8000) - 0x8000; @@ -433,8 +433,9 @@ static int uasm_rel_highest(long val) return 0; #endif } +UASM_EXPORT_SYMBOL(uasm_rel_highest); -static int uasm_rel_higher(long val) +int uasm_rel_higher(long val) { #ifdef CONFIG_64BIT return ((((val + 0x80008000L) >> 32) & 0xffff) ^ 0x8000) - 0x8000; @@ -442,6 +443,7 @@ static int uasm_rel_higher(long val) return 0; #endif } +UASM_EXPORT_SYMBOL(uasm_rel_higher); int uasm_rel_hi(long val) { From patchwork Fri Dec 8 16:12:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gregory CLEMENT X-Patchwork-Id: 13485614 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="LJ/mIuxr" Received: from relay3-d.mail.gandi.net (relay3-d.mail.gandi.net [IPv6:2001:4b98:dc4:8::223]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0537F1997; Fri, 8 Dec 2023 08:12:57 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPSA id A9B636000B; Fri, 8 Dec 2023 16:12:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1702051976; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=FGnu+pKltHatitWmpZe2slSLwq2YMSEGW5QMPSmCvCw=; b=LJ/mIuxr6qHAYUk6svKj9Twgg97pdvMlzT3YnIlrYdWe0JAA4FoaNYNElfpvRP9zg6lnXi Tn1WlWjY8dP3RJ5UK1+K4XpVTK1Rbop72PNOcPzIpdceNrBsf7hNk6e/rxClxvso1KHbRY 2cd61JWOc4mJq9/wgD79Z+aRPHMSRCvygC5SPK2vzNX5HmEzUFxGZpUtMyXaPXFxzLc4XR 53r8dv0QFCOD3o/U3xB/Tb1n9/Gx8V1aoUTM1AVBe0LFxRP2XnZlyZhMwRo4XhmUqZHN/u wJbTFTVlmOS6bA92h33a8fePoGa4K0ETaVD3Bw34Y3xn7a6eqxngzchJgbniIA== From: Gregory CLEMENT To: Paul Burton , Thomas Bogendoerfer , linux-mips@vger.kernel.org, Jiaxun Yang , Rob Herring , Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Vladimir Kondratiev , Tawfik Bayouk , Alexandre Belloni , =?utf-8?q?Th=C3=A9o_Lebr?= =?utf-8?q?un?= , Thomas Petazzoni , Gregory CLEMENT Subject: [PATCH v4 03/22] MIPS: spaces: Define a couple of handy macros Date: Fri, 8 Dec 2023 17:12:19 +0100 Message-ID: <20231208161249.1827174-4-gregory.clement@bootlin.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231208161249.1827174-1-gregory.clement@bootlin.com> References: <20231208161249.1827174-1-gregory.clement@bootlin.com> Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: gregory.clement@bootlin.com KSEGX_SIZE is defined to size of each KSEG segment. TO_CAC and TO_UNCAC are defined for 32bits builds and point to KSEG 0 and KSEG1. TO_PHYS remains to be 64bits only as we want people to use __pa to avoid mixup compat address space. Co-developed-by: Jiaxun Yang Signed-off-by: Gregory CLEMENT --- arch/mips/include/asm/addrspace.h | 5 +++++ arch/mips/include/asm/mach-generic/spaces.h | 2 ++ 2 files changed, 7 insertions(+) diff --git a/arch/mips/include/asm/addrspace.h b/arch/mips/include/asm/addrspace.h index 59a48c60a065c..03a5e2c8b5dc9 100644 --- a/arch/mips/include/asm/addrspace.h +++ b/arch/mips/include/asm/addrspace.h @@ -47,6 +47,11 @@ */ #define KSEGX(a) ((_ACAST32_(a)) & _ACAST32_(0xe0000000)) +/* + * Gives the size of each kernel segment + */ +#define KSEGX_SIZE 0x20000000 + /* * Returns the physical address of a CKSEGx / XKPHYS address */ diff --git a/arch/mips/include/asm/mach-generic/spaces.h b/arch/mips/include/asm/mach-generic/spaces.h index b247575c5e699..c502bdd98aad0 100644 --- a/arch/mips/include/asm/mach-generic/spaces.h +++ b/arch/mips/include/asm/mach-generic/spaces.h @@ -49,6 +49,8 @@ #define HIGHMEM_START _AC(0x20000000, UL) #endif +#define TO_UNCAC(x) CKSEG1ADDR(x) +#define TO_CAC(x) CKSEG0ADDR(x) #endif /* CONFIG_32BIT */ #ifdef CONFIG_64BIT From patchwork Fri Dec 8 16:12:20 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gregory CLEMENT X-Patchwork-Id: 13485615 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="e1DVOJMb" Received: from relay6-d.mail.gandi.net (relay6-d.mail.gandi.net [217.70.183.198]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AE6B51995; Fri, 8 Dec 2023 08:12:58 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPSA id 92239C0004; Fri, 8 Dec 2023 16:12:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1702051977; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=AagYqurduAd05kHY0ow9kHcvI+mUo3FUEEyQW1aeXWI=; b=e1DVOJMbQHAws2a4sJYGD+cU8txY0fD0/bnYzlRUqTuAocj9D/GDKqV13DlDIdi8cP7TX/ RqoQg9b65l0xcSt71ElN/z3aURY5EDE9wjcX4XXvb/FzyUigMrz18aCqowHugUJWYbDdKe Cj8KrRZ5GPgpe3ynTZGxw1lFTT4lbVHMhczeIGs3+rhViw5paJ1zNfBCUiRHKcTPLxt5vY +zHK+470tVAGMqc92Ei7tpb1ktcwaytCbV03usp5+78wopLnHTo83p06jJtfBQ5b83uU4N +DPFD7qgzdNTnuFRn+p9UFZxBASmApB0bOZ8t9HcXSsqhaGntCrkUoxXshbjag== From: Gregory CLEMENT To: Paul Burton , Thomas Bogendoerfer , linux-mips@vger.kernel.org, Jiaxun Yang , Rob Herring , Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Vladimir Kondratiev , Tawfik Bayouk , Alexandre Belloni , =?utf-8?q?Th=C3=A9o_Lebr?= =?utf-8?q?un?= , Thomas Petazzoni , Vladimir Kondratiev , Gregory CLEMENT Subject: [PATCH v4 04/22] MIPS: genex: Fix except_vec_vi for kernel in XKPHYS Date: Fri, 8 Dec 2023 17:12:20 +0100 Message-ID: <20231208161249.1827174-5-gregory.clement@bootlin.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231208161249.1827174-1-gregory.clement@bootlin.com> References: <20231208161249.1827174-1-gregory.clement@bootlin.com> Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: gregory.clement@bootlin.com From: Jiaxun Yang Use {highest, higher, hi, lo} immediate loading sequence to load 64 bit jump address for handler when kernel is loaded to XKPHYS. Co-developed-by: Vladimir Kondratiev Signed-off-by: Vladimir Kondratiev Co-developed-by: Gregory CLEMENT Signed-off-by: Jiaxun Yang Signed-off-by: Gregory CLEMENT --- arch/mips/kernel/genex.S | 19 +++++++++++++++---- arch/mips/kernel/traps.c | 34 ++++++++++++++++++++++++---------- 2 files changed, 39 insertions(+), 14 deletions(-) diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S index b6de8e88c1bd4..fd765ad9ecac0 100644 --- a/arch/mips/kernel/genex.S +++ b/arch/mips/kernel/genex.S @@ -272,11 +272,22 @@ NESTED(except_vec_vi, 0, sp) .set push .set noreorder PTR_LA v1, except_vec_vi_handler -FEXPORT(except_vec_vi_lui) - lui v0, 0 /* Patched */ +#if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32) +FEXPORT(except_vec_vi_hi) + lui v0, 0 /* Patched */ +#else +FEXPORT(except_vec_vi_highest) + lui v0, 0 /* Patched */ +FEXPORT(except_vec_vi_higher) + daddiu v0, 0 /* Patched */ + dsll v0, 16 +FEXPORT(except_vec_vi_hi) + daddiu v0, 0 /* Patched */ + dsll v0, 16 +#endif jr v1 -FEXPORT(except_vec_vi_ori) - ori v0, 0 /* Patched */ +FEXPORT(except_vec_vi_lo) + PTR_ADDIU v0, 0 /* Patched */ .set pop END(except_vec_vi) EXPORT(except_vec_vi_end) diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 246c6a6b02614..60c513c51684f 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -2091,18 +2091,26 @@ static void *set_vi_srs_handler(int n, vi_handler_t addr, int srs) * If no shadow set is selected then use the default handler * that does normal register saving and standard interrupt exit */ - extern const u8 except_vec_vi[], except_vec_vi_lui[]; - extern const u8 except_vec_vi_ori[], except_vec_vi_end[]; + extern const u8 except_vec_vi[], except_vec_vi_hi[]; + extern const u8 except_vec_vi_lo[], except_vec_vi_end[]; +#if defined(CONFIG_64BIT) && !defined(KBUILD_64BIT_SYM32) + extern const u8 except_vec_vi_highest[], except_vec_vi_higher[]; +#endif extern const u8 rollback_except_vec_vi[]; const u8 *vec_start = using_rollback_handler() ? rollback_except_vec_vi : except_vec_vi; #if defined(CONFIG_CPU_MICROMIPS) || defined(CONFIG_CPU_BIG_ENDIAN) - const int lui_offset = except_vec_vi_lui - vec_start + 2; - const int ori_offset = except_vec_vi_ori - vec_start + 2; + const int imm_offset = 2; #else - const int lui_offset = except_vec_vi_lui - vec_start; - const int ori_offset = except_vec_vi_ori - vec_start; + const int imm_offset = 0; +#endif +#if defined(CONFIG_64BIT) && !defined(KBUILD_64BIT_SYM32) + const int highest_offset = except_vec_vi_highest - vec_start + imm_offset; + const int higher_offset = except_vec_vi_higher - vec_start + imm_offset; #endif + const int hi_offset = except_vec_vi_hi - vec_start + imm_offset; + const int lo_offset = except_vec_vi_lo - vec_start + imm_offset; + const int handler_len = except_vec_vi_end - vec_start; if (handler_len > VECTORSPACING) { @@ -2119,10 +2127,16 @@ static void *set_vi_srs_handler(int n, vi_handler_t addr, int srs) #else handler_len); #endif - h = (u16 *)(b + lui_offset); - *h = (handler >> 16) & 0xffff; - h = (u16 *)(b + ori_offset); - *h = (handler & 0xffff); +#if defined(CONFIG_64BIT) && !defined(KBUILD_64BIT_SYM32) + h = (u16 *)(b + highest_offset); + *h = uasm_rel_highest(handler); + h = (u16 *)(b + higher_offset); + *h = uasm_rel_higher(handler); +#endif + h = (u16 *)(b + hi_offset); + *h = uasm_rel_hi(handler); + h = (u16 *)(b + lo_offset); + *h = uasm_rel_lo(handler); local_flush_icache_range((unsigned long)b, (unsigned long)(b+handler_len)); } From patchwork Fri Dec 8 16:12:21 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gregory CLEMENT X-Patchwork-Id: 13485616 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="BgBDek+l" Received: from relay7-d.mail.gandi.net (relay7-d.mail.gandi.net [IPv6:2001:4b98:dc4:8::227]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A30E4199D; Fri, 8 Dec 2023 08:12:59 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPSA id A174320002; Fri, 8 Dec 2023 16:12:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1702051978; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=p5Y4+QQx6IQCL0sfRkqEobRfltIrsUFlmPw44Fo9wsE=; b=BgBDek+lHk8Bpj4cTc9PRqbI7zUVzeW3FrPoj/em51nDGBxq/hJRlYrswt7JH3U16LmPUP 7OcuJpBXfg5BNautwb3tkcMppVHrjGL2UBr0upJBv61qVzFLSraqD81lkFd+DilwEjjsyE beiwHotLU4X0t0IO4KroTrZ8pVo8lnXmjdXbMtT50LSWUlNY9k0vR26hmzAVMm1IXgGNhf ibUlZ+LH7GAmibJLiCx4UvTW2VWODK/RoxuY2Cx/yPg+jKU3sjd6rwuO5l75COuhmA8gRr MGm4hfceUVAvwSjZEClpiBEPDQqTHZXlc2XrXRv5u1LFT/S8NVO5uAnWI+QjEg== From: Gregory CLEMENT To: Paul Burton , Thomas Bogendoerfer , linux-mips@vger.kernel.org, Jiaxun Yang , Rob Herring , Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Vladimir Kondratiev , Tawfik Bayouk , Alexandre Belloni , =?utf-8?q?Th=C3=A9o_Lebr?= =?utf-8?q?un?= , Thomas Petazzoni , Vladimir Kondratiev , Gregory CLEMENT Subject: [PATCH v4 05/22] MIPS: Fix set_uncached_handler for ebase in XKPHYS Date: Fri, 8 Dec 2023 17:12:21 +0100 Message-ID: <20231208161249.1827174-6-gregory.clement@bootlin.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231208161249.1827174-1-gregory.clement@bootlin.com> References: <20231208161249.1827174-1-gregory.clement@bootlin.com> Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: gregory.clement@bootlin.com From: Jiaxun Yang ebase may be in XKPHYS if memblock unable to allocate memory within KSEG0 physical range. To map ebase into uncached space we just convert it back to physical address and then use platform's TO_UNCAC helper to create mapping. Co-developed-by: Vladimir Kondratiev Signed-off-by: Vladimir Kondratiev Co-developed-by: Gregory CLEMENT Signed-off-by: Jiaxun Yang Signed-off-by: Gregory CLEMENT --- arch/mips/kernel/traps.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 60c513c51684f..230728d76d11f 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -2346,7 +2346,7 @@ static const char panic_null_cerr[] = void set_uncached_handler(unsigned long offset, void *addr, unsigned long size) { - unsigned long uncached_ebase = CKSEG1ADDR(ebase); + unsigned long uncached_ebase = TO_UNCAC(__pa(ebase)); if (!addr) panic(panic_null_cerr); From patchwork Fri Dec 8 16:12:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gregory CLEMENT X-Patchwork-Id: 13485617 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="LKhp9y6B" Received: from relay2-d.mail.gandi.net (relay2-d.mail.gandi.net [217.70.183.194]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8EF971998; Fri, 8 Dec 2023 08:13:00 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPSA id B8BA840006; Fri, 8 Dec 2023 16:12:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1702051979; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=f2MzbyPn8rMX/70hHyFKQ1kdGPyPC7EdKYb9ZGPjSt0=; b=LKhp9y6B1/NRjlKHXtTk9CSI5AaglqyvDy/IJ7rRmiq07pJZ2LA1nw41Zwo+tbDv1M+3Yv VA6SWiEuXsEUlPS5+7JRXIQpHV6lj9TxVHF0DYi6suf5GYH2MauwBEjdfzE9UJtCd+gy4w KaFWTG/Wc37yecDZIv2ULFhZ9w3r6xSniJqY+ZNQNZ+XxOJcPI6zetFuruT9hl6Q2httto dMtBUvnZuTlRsq1FQvFlpSc1nUZRZ+XVHZhSp82U29kdYWoOyuTL7L9I0XhJckIuTegerX I12Gig+NxWqFbTeBZMAWoU+7/MeKzKVOqRb3x8WwzskuHO0R5rV9dldRyBJvvg== From: Gregory CLEMENT To: Paul Burton , Thomas Bogendoerfer , linux-mips@vger.kernel.org, Jiaxun Yang , Rob Herring , Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Vladimir Kondratiev , Tawfik Bayouk , Alexandre Belloni , =?utf-8?q?Th=C3=A9o_Lebr?= =?utf-8?q?un?= , Thomas Petazzoni Subject: [PATCH v4 06/22] MIPS: Refactor mips_cps_core_entry implementation Date: Fri, 8 Dec 2023 17:12:22 +0100 Message-ID: <20231208161249.1827174-7-gregory.clement@bootlin.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231208161249.1827174-1-gregory.clement@bootlin.com> References: <20231208161249.1827174-1-gregory.clement@bootlin.com> Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: gregory.clement@bootlin.com From: Jiaxun Yang Now the exception vector for CPS systems are allocated on-fly with memblock as well. It will try to allocate from KSEG1 first, and then try to allocate in low 4G if possible. The main reset vector is now generated by uasm, to avoid tons of patches to the code. Other vectors are copied to the location later. Signed-off-by: Jiaxun Yang --- arch/mips/include/asm/mips-cm.h | 1 + arch/mips/include/asm/smp-cps.h | 4 +- arch/mips/kernel/cps-vec.S | 110 ++++++++------------- arch/mips/kernel/smp-cps.c | 167 +++++++++++++++++++++++++++----- arch/mips/kernel/traps.c | 2 + 5 files changed, 186 insertions(+), 98 deletions(-) diff --git a/arch/mips/include/asm/mips-cm.h b/arch/mips/include/asm/mips-cm.h index 23c67c0871b17..15d8d69de4550 100644 --- a/arch/mips/include/asm/mips-cm.h +++ b/arch/mips/include/asm/mips-cm.h @@ -311,6 +311,7 @@ GCR_CX_ACCESSOR_RW(32, 0x018, other) /* GCR_Cx_RESET_BASE - Configure where powered up cores will fetch from */ GCR_CX_ACCESSOR_RW(32, 0x020, reset_base) #define CM_GCR_Cx_RESET_BASE_BEVEXCBASE GENMASK(31, 12) +#define CM_GCR_Cx_RESET_BASE_MODE BIT(1) /* GCR_Cx_ID - Identify the current core */ GCR_CX_ACCESSOR_RO(32, 0x028, id) diff --git a/arch/mips/include/asm/smp-cps.h b/arch/mips/include/asm/smp-cps.h index 22a572b70fe31..39a602e5fecc4 100644 --- a/arch/mips/include/asm/smp-cps.h +++ b/arch/mips/include/asm/smp-cps.h @@ -24,7 +24,7 @@ struct core_boot_config { extern struct core_boot_config *mips_cps_core_bootcfg; -extern void mips_cps_core_entry(void); +extern void mips_cps_core_boot(int cca, void __iomem *gcr_base); extern void mips_cps_core_init(void); extern void mips_cps_boot_vpes(struct core_boot_config *cfg, unsigned vpe); @@ -32,8 +32,6 @@ extern void mips_cps_boot_vpes(struct core_boot_config *cfg, unsigned vpe); extern void mips_cps_pm_save(void); extern void mips_cps_pm_restore(void); -extern void *mips_cps_core_entry_patch_end; - #ifdef CONFIG_MIPS_CPS extern bool mips_cps_smp_in_use(void); diff --git a/arch/mips/kernel/cps-vec.S b/arch/mips/kernel/cps-vec.S index 64ecfdac6580b..8870a2dbc35aa 100644 --- a/arch/mips/kernel/cps-vec.S +++ b/arch/mips/kernel/cps-vec.S @@ -4,6 +4,8 @@ * Author: Paul Burton */ +#include + #include #include #include @@ -81,40 +83,48 @@ nop .endm + __INIT +LEAF(excep_tlbfill) + DUMP_EXCEP("TLB Fill") + b . + nop + END(excep_tlbfill) -.balign 0x1000 +LEAF(excep_xtlbfill) + DUMP_EXCEP("XTLB Fill") + b . + nop + END(excep_xtlbfill) -LEAF(mips_cps_core_entry) - /* - * These first several instructions will be patched by cps_smp_setup to load the - * CCA to use into register s0 and GCR base address to register s1. - */ - .rept CPS_ENTRY_PATCH_INSNS - nop - .endr +LEAF(excep_cache) + DUMP_EXCEP("Cache") + b . + nop + END(excep_cache) - .global mips_cps_core_entry_patch_end -mips_cps_core_entry_patch_end: +LEAF(excep_genex) + DUMP_EXCEP("General") + b . + nop + END(excep_genex) - /* Check whether we're here due to an NMI */ - mfc0 k0, CP0_STATUS - and k0, k0, ST0_NMI - beqz k0, not_nmi +LEAF(excep_intex) + DUMP_EXCEP("Interrupt") + b . nop + END(excep_intex) - /* This is an NMI */ - PTR_LA k0, nmi_handler +LEAF(excep_ejtag) + PTR_LA k0, ejtag_debug_handler jr k0 nop + END(excep_ejtag) + __FINIT -not_nmi: - /* Setup Cause */ - li t0, CAUSEF_IV - mtc0 t0, CP0_CAUSE - - /* Setup Status */ - li t0, ST0_CU1 | ST0_CU0 | ST0_BEV | STATUS_BITDEPS - mtc0 t0, CP0_STATUS +LEAF(mips_cps_core_boot) + /* Save CCA and GCR base */ + move s0, a0 + move s1, a1 /* We don't know how to do coherence setup on earlier ISA */ #if MIPS_ISA_REV > 0 @@ -178,49 +188,7 @@ not_nmi: PTR_L sp, VPEBOOTCFG_SP(v1) jr t1 nop - END(mips_cps_core_entry) - -.org 0x200 -LEAF(excep_tlbfill) - DUMP_EXCEP("TLB Fill") - b . - nop - END(excep_tlbfill) - -.org 0x280 -LEAF(excep_xtlbfill) - DUMP_EXCEP("XTLB Fill") - b . - nop - END(excep_xtlbfill) - -.org 0x300 -LEAF(excep_cache) - DUMP_EXCEP("Cache") - b . - nop - END(excep_cache) - -.org 0x380 -LEAF(excep_genex) - DUMP_EXCEP("General") - b . - nop - END(excep_genex) - -.org 0x400 -LEAF(excep_intex) - DUMP_EXCEP("Interrupt") - b . - nop - END(excep_intex) - -.org 0x480 -LEAF(excep_ejtag) - PTR_LA k0, ejtag_debug_handler - jr k0 - nop - END(excep_ejtag) + END(mips_cps_core_boot) LEAF(mips_cps_core_init) #ifdef CONFIG_MIPS_MT_SMP @@ -428,7 +396,7 @@ LEAF(mips_cps_boot_vpes) /* Calculate a pointer to the VPEs struct vpe_boot_config */ li t0, VPEBOOTCFG_SIZE mul t0, t0, ta1 - addu t0, t0, ta3 + PTR_ADDU t0, t0, ta3 /* Set the TC restart PC */ lw t1, VPEBOOTCFG_PC(t0) @@ -603,10 +571,10 @@ dcache_done: lw $1, TI_CPU(gp) sll $1, $1, LONGLOG PTR_LA \dest, __per_cpu_offset - addu $1, $1, \dest + PTR_ADDU $1, $1, \dest lw $1, 0($1) PTR_LA \dest, cps_cpu_state - addu \dest, \dest, $1 + PTR_ADDU \dest, \dest, $1 .set pop .endm diff --git a/arch/mips/kernel/smp-cps.c b/arch/mips/kernel/smp-cps.c index dd55d59b88db3..9aad678a32bd7 100644 --- a/arch/mips/kernel/smp-cps.c +++ b/arch/mips/kernel/smp-cps.c @@ -7,6 +7,7 @@ #include #include #include +#include #include #include #include @@ -25,7 +26,33 @@ #include #include +#define BEV_VEC_SIZE 0x500 +#define BEV_VEC_ALIGN 0x1000 + +#define A0 4 +#define A1 5 +#define T9 25 +#define K0 26 +#define K1 27 + +#define C0_STATUS 12, 0 +#define C0_CAUSE 13, 0 + +#define ST0_NMI_BIT 19 +#ifdef CONFIG_64BIT +#define ST0_KX_IF_64 ST0_KX +#else +#define ST0_KX_IF_64 0 +#endif + +enum label_id { + label_not_nmi = 1, +}; + +UASM_L_LA(_not_nmi) + static DECLARE_BITMAP(core_power, NR_CPUS); +static uint32_t core_entry_reg; struct core_boot_config *mips_cps_core_bootcfg; @@ -34,10 +61,113 @@ static unsigned __init core_vpe_count(unsigned int cluster, unsigned core) return min(smp_max_threads, mips_cps_numvps(cluster, core)); } +static void __init *mips_cps_build_core_entry(void *addr) +{ + extern void (*nmi_handler)(void); + u32 *p = addr; + u32 val; + struct uasm_label labels[2]; + struct uasm_reloc relocs[2]; + struct uasm_label *l = labels; + struct uasm_reloc *r = relocs; + + memset(labels, 0, sizeof(labels)); + memset(relocs, 0, sizeof(relocs)); + + uasm_i_mfc0(&p, K0, C0_STATUS); + if (cpu_has_mips_r2_r6) + uasm_i_ext(&p, K0, K0, ST0_NMI_BIT, 1); + else { + uasm_i_srl(&p, K0, K0, ST0_NMI_BIT); + uasm_i_andi(&p, K0, K0, 0x1); + } + + uasm_il_bnez(&p, &r, K0, label_not_nmi); + uasm_i_nop(&p); + UASM_i_LA(&p, K0, (long)&nmi_handler); + + uasm_l_not_nmi(&l, p); + + val = CAUSEF_IV; + uasm_i_lui(&p, K0, val >> 16); + uasm_i_ori(&p, K0, K0, val & 0xffff); + uasm_i_mtc0(&p, K0, C0_CAUSE); + val = ST0_CU1 | ST0_CU0 | ST0_BEV | ST0_KX_IF_64; + uasm_i_lui(&p, K0, val >> 16); + uasm_i_ori(&p, K0, K0, val & 0xffff); + uasm_i_mtc0(&p, K0, C0_STATUS); + uasm_i_ehb(&p); + uasm_i_ori(&p, A0, 0, read_c0_config() & CONF_CM_CMASK); + UASM_i_LA(&p, A1, (long)mips_gcr_base); +#if defined(KBUILD_64BIT_SYM32) || defined(CONFIG_32BIT) + UASM_i_LA(&p, T9, CKSEG1ADDR(__pa_symbol(mips_cps_core_boot))); +#else + UASM_i_LA(&p, T9, TO_UNCAC(__pa_symbol(mips_cps_core_boot))); +#endif + uasm_i_jr(&p, T9); + uasm_i_nop(&p); + + uasm_resolve_relocs(relocs, labels); + + return p; +} + +static int __init setup_cps_vecs(void) +{ + extern void excep_tlbfill(void); + extern void excep_xtlbfill(void); + extern void excep_cache(void); + extern void excep_genex(void); + extern void excep_intex(void); + extern void excep_ejtag(void); + phys_addr_t cps_vec_pa; + void *cps_vec; + + /* Try to allocate in KSEG1 first */ + cps_vec_pa = memblock_phys_alloc_range(BEV_VEC_SIZE, BEV_VEC_ALIGN, + 0x0, KSEGX_SIZE - 1); + + if (cps_vec_pa) + core_entry_reg = CKSEG1ADDR(cps_vec_pa) & + CM_GCR_Cx_RESET_BASE_BEVEXCBASE; + + if (!cps_vec_pa && mips_cm_is64) { + cps_vec_pa = memblock_phys_alloc_range(BEV_VEC_SIZE, BEV_VEC_ALIGN, + 0x0, SZ_4G - 1); + if (cps_vec_pa) + core_entry_reg = (cps_vec_pa & CM_GCR_Cx_RESET_BASE_BEVEXCBASE) | + CM_GCR_Cx_RESET_BASE_MODE; + } + + if (!cps_vec_pa) + return -ENOMEM; + + /* We want to ensure cache is clean before writing uncached mem */ + blast_dcache_range(TO_CAC(cps_vec_pa), TO_CAC(cps_vec_pa) + BEV_VEC_SIZE); + bc_wback_inv(TO_CAC(cps_vec_pa), BEV_VEC_SIZE); + __sync(); + + cps_vec = (void *)TO_UNCAC(cps_vec_pa); + mips_cps_build_core_entry(cps_vec); + + memcpy(cps_vec + 0x200, &excep_tlbfill, 0x80); + memcpy(cps_vec + 0x280, &excep_xtlbfill, 0x80); + memcpy(cps_vec + 0x300, &excep_cache, 0x80); + memcpy(cps_vec + 0x380, &excep_genex, 0x80); + memcpy(cps_vec + 0x400, &excep_intex, 0x80); + memcpy(cps_vec + 0x480, &excep_ejtag, 0x80); + + /* Make sure no prefetched data in cache */ + blast_inv_dcache_range(TO_CAC(cps_vec_pa), TO_CAC(cps_vec_pa) + BEV_VEC_SIZE); + bc_inv(TO_CAC(cps_vec_pa), BEV_VEC_SIZE); + __sync(); + + return 0; +} + static void __init cps_smp_setup(void) { unsigned int nclusters, ncores, nvpes, core_vpes; - unsigned long core_entry; int cl, c, v; /* Detect & record VPE topology */ @@ -94,10 +224,11 @@ static void __init cps_smp_setup(void) /* Make core 0 coherent with everything */ write_gcr_cl_coherence(0xff); - if (mips_cm_revision() >= CM_REV_CM3) { - core_entry = CKSEG1ADDR((unsigned long)mips_cps_core_entry); - write_gcr_bev_base(core_entry); - } + if (setup_cps_vecs()) + pr_err("Failed to setup CPS vectors\n"); + + if (core_entry_reg && mips_cm_revision() >= CM_REV_CM3) + write_gcr_bev_base(core_entry_reg); #ifdef CONFIG_MIPS_MT_FPAFF /* If we have an FPU, enroll ourselves in the FPU-full mask */ @@ -110,10 +241,14 @@ static void __init cps_prepare_cpus(unsigned int max_cpus) { unsigned ncores, core_vpes, c, cca; bool cca_unsuitable, cores_limited; - u32 *entry_code; mips_mt_set_cpuoptions(); + if (!core_entry_reg) { + pr_err("core_entry address unsuitable, disabling smp-cps\n"); + goto err_out; + } + /* Detect whether the CCA is unsuited to multi-core SMP */ cca = read_c0_config() & CONF_CM_CMASK; switch (cca) { @@ -145,20 +280,6 @@ static void __init cps_prepare_cpus(unsigned int max_cpus) (cca_unsuitable && cpu_has_dc_aliases) ? " & " : "", cpu_has_dc_aliases ? "dcache aliasing" : ""); - /* - * Patch the start of mips_cps_core_entry to provide: - * - * s0 = kseg0 CCA - */ - entry_code = (u32 *)&mips_cps_core_entry; - uasm_i_addiu(&entry_code, 16, 0, cca); - UASM_i_LA(&entry_code, 17, (long)mips_gcr_base); - BUG_ON((void *)entry_code > (void *)&mips_cps_core_entry_patch_end); - blast_dcache_range((unsigned long)&mips_cps_core_entry, - (unsigned long)entry_code); - bc_wback_inv((unsigned long)&mips_cps_core_entry, - (void *)entry_code - (void *)&mips_cps_core_entry); - __sync(); /* Allocate core boot configuration structs */ ncores = mips_cps_numcores(0); @@ -213,7 +334,7 @@ static void boot_core(unsigned int core, unsigned int vpe_id) mips_cm_lock_other(0, core, 0, CM_GCR_Cx_OTHER_BLOCK_LOCAL); /* Set its reset vector */ - write_gcr_co_reset_base(CKSEG1ADDR((unsigned long)mips_cps_core_entry)); + write_gcr_co_reset_base(core_entry_reg); /* Ensure its coherency is disabled */ write_gcr_co_coherence(0); @@ -290,7 +411,6 @@ static int cps_boot_secondary(int cpu, struct task_struct *idle) unsigned vpe_id = cpu_vpe_id(&cpu_data[cpu]); struct core_boot_config *core_cfg = &mips_cps_core_bootcfg[core]; struct vpe_boot_config *vpe_cfg = &core_cfg->vpe_config[vpe_id]; - unsigned long core_entry; unsigned int remote; int err; @@ -314,8 +434,7 @@ static int cps_boot_secondary(int cpu, struct task_struct *idle) if (cpu_has_vp) { mips_cm_lock_other(0, core, vpe_id, CM_GCR_Cx_OTHER_BLOCK_LOCAL); - core_entry = CKSEG1ADDR((unsigned long)mips_cps_core_entry); - write_gcr_co_reset_base(core_entry); + write_gcr_co_reset_base(core_entry_reg); mips_cm_unlock_other(); } diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 230728d76d11f..ea59d321f713e 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -74,6 +74,8 @@ #include "access-helper.h" +#define MAX(a, b) ((a) >= (b) ? (a) : (b)) + extern void check_wait(void); extern asmlinkage void rollback_handle_int(void); extern asmlinkage void handle_int(void); From patchwork Fri Dec 8 16:12:23 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gregory CLEMENT X-Patchwork-Id: 13485618 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="lfd/6isT" Received: from relay4-d.mail.gandi.net (relay4-d.mail.gandi.net [217.70.183.196]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DD81C1997; Fri, 8 Dec 2023 08:13:01 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPSA id CF3E4E0007; Fri, 8 Dec 2023 16:12:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1702051980; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=csnOaxSt7JZQCahT2bN5IGKlGaknLCMr5TUNqVz3qJ8=; b=lfd/6isT0VX4Egalf6Do3M7LwdsJAm7pZed++q2SqPXqXIm5iRn9Ab915SwnV5LwYI3jNR +qyOYjElMM8o5r71l9qrpOTGJE/sh0RIbCYKatsZOqFskdMpM6BKO6effwlc4MA/MANDKW 6YwStIHXFwifHg1GBuvjmYC9SxR9mFE3SwzbWkRxJqr0aAeRNj7IVIidl0/D8mOwAuwG02 lSLx5obyqorc+kgklKY1IvN8hPWvD/eOM4LIYfbn7Y9Rm3KzEzeP2zZvElKxlhYUxzoZps 3H1kz39R41mJRRRMh1DuOa490v9yJyPjDfkPMHwoskbVXOv0B2/IBUvYkKNGtA== From: Gregory CLEMENT To: Paul Burton , Thomas Bogendoerfer , linux-mips@vger.kernel.org, Jiaxun Yang , Rob Herring , Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Vladimir Kondratiev , Tawfik Bayouk , Alexandre Belloni , =?utf-8?q?Th=C3=A9o_Lebr?= =?utf-8?q?un?= , Thomas Petazzoni , Gregory CLEMENT Subject: [PATCH v4 07/22] MIPS: Fix cache issue with mips_cps_core_entry Date: Fri, 8 Dec 2023 17:12:23 +0100 Message-ID: <20231208161249.1827174-8-gregory.clement@bootlin.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231208161249.1827174-1-gregory.clement@bootlin.com> References: <20231208161249.1827174-1-gregory.clement@bootlin.com> Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: gregory.clement@bootlin.com Split setup_cps_vecs and move back the cache management latter in cps_smp_setup when the cache subsystem had been initialized. Without this the blast_inv_dcache_range() call can lead to a crash. Signed-off-by: Gregory CLEMENT --- arch/mips/kernel/smp-cps.c | 32 ++++++++++++++++++-------------- 1 file changed, 18 insertions(+), 14 deletions(-) diff --git a/arch/mips/kernel/smp-cps.c b/arch/mips/kernel/smp-cps.c index 9aad678a32bd7..6cbdff917d147 100644 --- a/arch/mips/kernel/smp-cps.c +++ b/arch/mips/kernel/smp-cps.c @@ -53,6 +53,7 @@ UASM_L_LA(_not_nmi) static DECLARE_BITMAP(core_power, NR_CPUS); static uint32_t core_entry_reg; +static phys_addr_t cps_vec_pa; struct core_boot_config *mips_cps_core_bootcfg; @@ -112,17 +113,8 @@ static void __init *mips_cps_build_core_entry(void *addr) return p; } -static int __init setup_cps_vecs(void) +static int __init allocate_cps_vecs(void) { - extern void excep_tlbfill(void); - extern void excep_xtlbfill(void); - extern void excep_cache(void); - extern void excep_genex(void); - extern void excep_intex(void); - extern void excep_ejtag(void); - phys_addr_t cps_vec_pa; - void *cps_vec; - /* Try to allocate in KSEG1 first */ cps_vec_pa = memblock_phys_alloc_range(BEV_VEC_SIZE, BEV_VEC_ALIGN, 0x0, KSEGX_SIZE - 1); @@ -142,6 +134,19 @@ static int __init setup_cps_vecs(void) if (!cps_vec_pa) return -ENOMEM; + return 0; +} + +static void __init setup_cps_vecs(void) +{ + extern void excep_tlbfill(void); + extern void excep_xtlbfill(void); + extern void excep_cache(void); + extern void excep_genex(void); + extern void excep_intex(void); + extern void excep_ejtag(void); + void *cps_vec; + /* We want to ensure cache is clean before writing uncached mem */ blast_dcache_range(TO_CAC(cps_vec_pa), TO_CAC(cps_vec_pa) + BEV_VEC_SIZE); bc_wback_inv(TO_CAC(cps_vec_pa), BEV_VEC_SIZE); @@ -161,8 +166,6 @@ static int __init setup_cps_vecs(void) blast_inv_dcache_range(TO_CAC(cps_vec_pa), TO_CAC(cps_vec_pa) + BEV_VEC_SIZE); bc_inv(TO_CAC(cps_vec_pa), BEV_VEC_SIZE); __sync(); - - return 0; } static void __init cps_smp_setup(void) @@ -224,8 +227,8 @@ static void __init cps_smp_setup(void) /* Make core 0 coherent with everything */ write_gcr_cl_coherence(0xff); - if (setup_cps_vecs()) - pr_err("Failed to setup CPS vectors\n"); + if (allocate_cps_vecs()) + pr_err("Failed to allocate CPS vectors\n"); if (core_entry_reg && mips_cm_revision() >= CM_REV_CM3) write_gcr_bev_base(core_entry_reg); @@ -280,6 +283,7 @@ static void __init cps_prepare_cpus(unsigned int max_cpus) (cca_unsuitable && cpu_has_dc_aliases) ? " & " : "", cpu_has_dc_aliases ? "dcache aliasing" : ""); + setup_cps_vecs(); /* Allocate core boot configuration structs */ ncores = mips_cps_numcores(0); From patchwork Fri Dec 8 16:12:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gregory CLEMENT X-Patchwork-Id: 13485619 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="ZMGj9JSs" Received: from relay1-d.mail.gandi.net (relay1-d.mail.gandi.net [217.70.183.193]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CD1FC1995; Fri, 8 Dec 2023 08:13:02 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPSA id DFE65240007; Fri, 8 Dec 2023 16:13:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1702051981; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=dTU5KtilBzqMs1820zYNtcs9nCUHlD6780U14+z9iDM=; b=ZMGj9JSs16wC1UqvmZPxrLZuhd6D9s9/2hZvlDZQTaHZimfVIGLShWLVVSGpy40FyvrIkp JaYXI8Z9RMdyRk2BXXR5RHfCkMuL/yNmT/+Zxa5MDgKsDuoxlCJu+ibU3++PPmwvgl3Jgj e+6CCk9uH0BXn3FfAZp1QxyzFBoh/CJV2zrTm9TrX5LKl80iDtITM7z71p56u4X1Mqzqqi zxCOiW4jdamVH1pVYo1XqpTWRPiJqwK4Gl2VqKtREt+lriK5RpcFG9E575MTqzumbe/Dsh l3DeLMbIta13ikZMCvmfjYn0JdqX3Vy+1+P9D7Tmp1KZQvCdBICjhRLa3nwA3w== From: Gregory CLEMENT To: Paul Burton , Thomas Bogendoerfer , linux-mips@vger.kernel.org, Jiaxun Yang , Rob Herring , Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Vladimir Kondratiev , Tawfik Bayouk , Alexandre Belloni , =?utf-8?q?Th=C3=A9o_Lebr?= =?utf-8?q?un?= , Thomas Petazzoni Subject: [PATCH v4 08/22] MIPS: Allow kernel base to be set from Kconfig for all platforms Date: Fri, 8 Dec 2023 17:12:24 +0100 Message-ID: <20231208161249.1827174-9-gregory.clement@bootlin.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231208161249.1827174-1-gregory.clement@bootlin.com> References: <20231208161249.1827174-1-gregory.clement@bootlin.com> Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: gregory.clement@bootlin.com From: Jiaxun Yang There are some platforms in wild that generic loading address won't work with them due to memory layout. Allow PHYSICAL_START to be override from Kconfig, introduce PHYSICAL_START_BOOL symbol as powerpc did. Signed-off-by: Jiaxun Yang --- arch/mips/Kconfig | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index fad05f699efdf..11bacbd3971f6 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -2866,12 +2866,22 @@ config ARCH_SUPPORTS_KEXEC config ARCH_SUPPORTS_CRASH_DUMP def_bool y +config PHYSICAL_START_BOOL + bool "Set physical address where the kernel is loaded" + default y if CRASH_DUMP + help + This gives the CKSEG0, KSEG0 or XKPHYS address where the kernel + is loaded. + + Say N here unless you know what you are doing. + config PHYSICAL_START - hex "Physical address where the kernel is loaded" - default "0xffffffff84000000" - depends on CRASH_DUMP + hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL + default "0xffffffff84000000" if CRASH_DUMP + default "0xffffffff80100000" help - This gives the CKSEG0 or KSEG0 address where the kernel is loaded. + This gives the CKSEG0, KSEG0 or XKPHYS address where the kernel + is loaded. If you plan to use kernel for capturing the crash dump change this value to start of the reserved region (the "X" value as specified in the "crashkernel=YM@XM" command line boot parameter From patchwork Fri Dec 8 16:12:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gregory CLEMENT X-Patchwork-Id: 13485620 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="k7TY1Q+U" Received: from relay3-d.mail.gandi.net (relay3-d.mail.gandi.net [IPv6:2001:4b98:dc4:8::223]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5917C19AA; Fri, 8 Dec 2023 08:13:03 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPSA id A20A060009; Fri, 8 Dec 2023 16:13:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1702051982; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=imSdkuhb1bmbiT2B28YIP5ZVYeyaD1qizr5YYVEXZZM=; b=k7TY1Q+UwTJuyIzB1zXiOsCFYY9OY5knmQArel3rY1qdnyV6kG8zLvgaXlAsOLtTm0py8x BPqzTvLeGyDfWcURujGB/0M4caOHgS/PnwUwTl2ErXUnAW6WuqROkUYU+uUlwmOAjtpqj6 sSrChGm4I6Gezw7DsN6HF5J8bZyIAlu7QFK3yJHBQg0Bklr5e1YW1MiGP0FveClJKDNJSG Lv4QS5B7ArNXiI2HuiJ92yZmVmZghTHTq8IE/tlbsPe1ZFJryi7qsvcxZr1LUzr61F17zy +PJCuauEDOU4WVuEMEkc5ztrpw6yeDZH0lN2oF6YldAtxnR6DttXIBQKSVu4hQ== From: Gregory CLEMENT To: Paul Burton , Thomas Bogendoerfer , linux-mips@vger.kernel.org, Jiaxun Yang , Rob Herring , Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Vladimir Kondratiev , Tawfik Bayouk , Alexandre Belloni , =?utf-8?q?Th=C3=A9o_Lebr?= =?utf-8?q?un?= , Thomas Petazzoni Subject: [PATCH v4 09/22] MIPS: traps: Handle CPU with non standard vint offset Date: Fri, 8 Dec 2023 17:12:25 +0100 Message-ID: <20231208161249.1827174-10-gregory.clement@bootlin.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231208161249.1827174-1-gregory.clement@bootlin.com> References: <20231208161249.1827174-1-gregory.clement@bootlin.com> Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: gregory.clement@bootlin.com From: Jiaxun Yang Some BMIPS cpus has none standard start offset for vector interrupts. Handle those CPUs in vector size calculation and handler setup process. Signed-off-by: Jiaxun Yang --- arch/mips/kernel/traps.c | 32 +++++++++++++++++++++++--------- 1 file changed, 23 insertions(+), 9 deletions(-) diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index ea59d321f713e..651c9ec6265a9 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -74,7 +74,6 @@ #include "access-helper.h" -#define MAX(a, b) ((a) >= (b) ? (a) : (b)) extern void check_wait(void); extern asmlinkage void rollback_handle_int(void); @@ -2005,6 +2004,7 @@ void __noreturn nmi_exception_handler(struct pt_regs *regs) unsigned long ebase; EXPORT_SYMBOL_GPL(ebase); unsigned long exception_handlers[32]; +static unsigned long vi_vecbase; unsigned long vi_handlers[64]; void reserve_exception_space(phys_addr_t addr, unsigned long size) @@ -2074,7 +2074,7 @@ static void *set_vi_srs_handler(int n, vi_handler_t addr, int srs) handler = (unsigned long) addr; vi_handlers[n] = handler; - b = (unsigned char *)(ebase + 0x200 + n*VECTORSPACING); + b = (unsigned char *)(vi_vecbase + n*VECTORSPACING); if (srs >= srssets) panic("Shadow register set %d not supported", srs); @@ -2370,20 +2370,33 @@ void __init trap_init(void) extern char except_vec3_generic; extern char except_vec4; extern char except_vec3_r4000; - unsigned long i, vec_size; + unsigned long i, vec_size, vi_vec_offset; phys_addr_t ebase_pa; check_wait(); + if (cpu_has_veic || cpu_has_vint) { + switch (current_cpu_type()) { + case CPU_BMIPS3300: + case CPU_BMIPS4380: + vi_vec_offset = 0x400; + break; + case CPU_BMIPS5000: + vi_vec_offset = 0x1000; + break; + default: + vi_vec_offset = 0x200; + break; + } + vec_size = vi_vec_offset + VECTORSPACING*64; + } else { + vec_size = 0x400; + } + if (!cpu_has_mips_r2_r6) { ebase = CAC_BASE; - vec_size = 0x400; } else { - if (cpu_has_veic || cpu_has_vint) - vec_size = 0x200 + VECTORSPACING*64; - else - vec_size = PAGE_SIZE; - + vec_size = max(vec_size, PAGE_SIZE); ebase_pa = memblock_phys_alloc(vec_size, 1 << fls(vec_size)); if (!ebase_pa) panic("%s: Failed to allocate %lu bytes align=0x%x\n", @@ -2450,6 +2463,7 @@ void __init trap_init(void) * Initialise interrupt handlers */ if (cpu_has_veic || cpu_has_vint) { + vi_vecbase = ebase + vi_vec_offset; int nvec = cpu_has_veic ? 64 : 8; for (i = 0; i < nvec; i++) set_vi_handler(i, NULL); From patchwork Fri Dec 8 16:12:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gregory CLEMENT X-Patchwork-Id: 13485623 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="M3D+hiW/" Received: from relay2-d.mail.gandi.net (relay2-d.mail.gandi.net [IPv6:2001:4b98:dc4:8::222]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 50D2B19B3; Fri, 8 Dec 2023 08:13:04 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPSA id 429FA4000A; Fri, 8 Dec 2023 16:13:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1702051982; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Ss+D9T5Uh+7fUYrH2xTy2RKRoXOlo2BBLgHNahkRQoc=; b=M3D+hiW/lX4+qnJ4aFIJLgwUJ/MXrOlPGFApd7eut7kxrhgSHrEACqqie+Ujnwm+cwmo0n MUuL76ydDD9qA1njh4Ew4OVPjU8hNxgJlVddYtl8Sfqq4W9IO4s0vuTCcQCKLM05IgHQ/s y92uWh3Vh9ENa4SyoRZz9hXHPgNBxMWIzpvYPgoUorxv7tWZaew9vm3y/kpo3sTyjwmfOk cdgKjLPP86qnwcIq2cP+AL0sTQpg3/KMmwNtnNF18TKaSUiDqs1nmEErmUjNMMnj3BDcMq WijDvCFsWY0QP0+cxiU/zVteTFDZsNyu7tVpYT9OANZddPME7DNBh8C32CMnyw== From: Gregory CLEMENT To: Paul Burton , Thomas Bogendoerfer , linux-mips@vger.kernel.org, Jiaxun Yang , Rob Herring , Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Vladimir Kondratiev , Tawfik Bayouk , Alexandre Belloni , =?utf-8?q?Th=C3=A9o_Lebr?= =?utf-8?q?un?= , Thomas Petazzoni Subject: [PATCH v4 10/22] MIPS: Avoid unnecessary reservation of exception space Date: Fri, 8 Dec 2023 17:12:26 +0100 Message-ID: <20231208161249.1827174-11-gregory.clement@bootlin.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231208161249.1827174-1-gregory.clement@bootlin.com> References: <20231208161249.1827174-1-gregory.clement@bootlin.com> Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: gregory.clement@bootlin.com From: Jiaxun Yang Nowadays we allocate exception base from memblock for r2_r6, so we don't need to reverse exception space at the start of the memory for r2_r6 processors. For older processors the reservation is moved to traps_init where we have knowledge of exact size we need. We also add a sanity check to detect possible overlap with kernel. Signed-off-by: Jiaxun Yang --- arch/mips/include/asm/traps.h | 1 - arch/mips/kernel/cpu-probe.c | 5 ----- arch/mips/kernel/cpu-r3k-probe.c | 2 -- arch/mips/kernel/traps.c | 12 +++++++----- 4 files changed, 7 insertions(+), 13 deletions(-) diff --git a/arch/mips/include/asm/traps.h b/arch/mips/include/asm/traps.h index 15cde638b4070..d3dddd1c083a9 100644 --- a/arch/mips/include/asm/traps.h +++ b/arch/mips/include/asm/traps.h @@ -24,7 +24,6 @@ extern void (*board_ebase_setup)(void); extern void (*board_cache_error_setup)(void); extern int register_nmi_notifier(struct notifier_block *nb); -extern void reserve_exception_space(phys_addr_t addr, unsigned long size); extern char except_vec_nmi[]; #define VECTORSPACING 0x100 /* for EI/VI mode */ diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index b406d8bfb15a3..54e8b0fd4a2ab 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -1570,7 +1570,6 @@ static inline void cpu_probe_broadcom(struct cpuinfo_mips *c, unsigned int cpu) c->cputype = CPU_BMIPS3300; __cpu_name[cpu] = "Broadcom BMIPS3300"; set_elf_platform(cpu, "bmips3300"); - reserve_exception_space(0x400, VECTORSPACING * 64); break; case PRID_IMP_BMIPS43XX: { int rev = c->processor_id & PRID_REV_MASK; @@ -1581,7 +1580,6 @@ static inline void cpu_probe_broadcom(struct cpuinfo_mips *c, unsigned int cpu) __cpu_name[cpu] = "Broadcom BMIPS4380"; set_elf_platform(cpu, "bmips4380"); c->options |= MIPS_CPU_RIXI; - reserve_exception_space(0x400, VECTORSPACING * 64); } else { c->cputype = CPU_BMIPS4350; __cpu_name[cpu] = "Broadcom BMIPS4350"; @@ -1598,7 +1596,6 @@ static inline void cpu_probe_broadcom(struct cpuinfo_mips *c, unsigned int cpu) __cpu_name[cpu] = "Broadcom BMIPS5000"; set_elf_platform(cpu, "bmips5000"); c->options |= MIPS_CPU_ULRI | MIPS_CPU_RIXI; - reserve_exception_space(0x1000, VECTORSPACING * 64); break; } } @@ -1996,8 +1993,6 @@ void cpu_probe(void) if (cpu == 0) __ua_limit = ~((1ull << cpu_vmbits) - 1); #endif - - reserve_exception_space(0, 0x1000); } void cpu_report(void) diff --git a/arch/mips/kernel/cpu-r3k-probe.c b/arch/mips/kernel/cpu-r3k-probe.c index be93469c0e0ec..05410b743e571 100644 --- a/arch/mips/kernel/cpu-r3k-probe.c +++ b/arch/mips/kernel/cpu-r3k-probe.c @@ -137,8 +137,6 @@ void cpu_probe(void) cpu_set_fpu_opts(c); else cpu_set_nofpu_opts(c); - - reserve_exception_space(0, 0x400); } void cpu_report(void) diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 651c9ec6265a9..b6e94654f6211 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -2007,10 +2007,6 @@ unsigned long exception_handlers[32]; static unsigned long vi_vecbase; unsigned long vi_handlers[64]; -void reserve_exception_space(phys_addr_t addr, unsigned long size) -{ - memblock_reserve(addr, size); -} void __init *set_except_vector(int n, void *addr) { @@ -2394,7 +2390,13 @@ void __init trap_init(void) } if (!cpu_has_mips_r2_r6) { - ebase = CAC_BASE; + ebase_pa = 0x0; + ebase = CKSEG0ADDR(ebase_pa); + + if (__pa_symbol(_stext) < (ebase_pa + vec_size)) + pr_err("Insufficient space for exception vectors\n"); + + memblock_reserve(ebase_pa, vec_size); } else { vec_size = max(vec_size, PAGE_SIZE); ebase_pa = memblock_phys_alloc(vec_size, 1 << fls(vec_size)); From patchwork Fri Dec 8 16:12:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gregory CLEMENT X-Patchwork-Id: 13485621 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="ShlMJ/9E" Received: from relay5-d.mail.gandi.net (relay5-d.mail.gandi.net [217.70.183.197]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2A7E119B6; Fri, 8 Dec 2023 08:13:04 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPSA id D24CB1C0004; Fri, 8 Dec 2023 16:13:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1702051983; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=RcHHna0h/IgIzh58pWB4uS96fnTDDQBk114hJ4c/spg=; b=ShlMJ/9E9iWREjauCv+qBvFMf4f8r53G9fhixcuTCpLqY3RgyZz2BVYlB7iG93Jh/LGoYT lhOBXozpMkdt56V0XVKs1tUQ7JGOxdRICcNVLuQvbdMDaZETMZJqrOZ9ZgWgp2PpAKA3v5 qGsoqDIKJSvWtC+rTjGEVfTemCsM6MLX0bLkdZ7ZwoYAUnxxjbzRHI8EVDStbrzvEtrkWG PlwsRuBWriB/++SlD9jMQeQsoSq9GXuBG5GN5oChagh4H0SPxO61u1WTqKa4LAm+AQ4QtI BYKNSCkhszd6OVtjLRL4gO2Uh0rAwkB7sMQyxOOfPUKSCS43ZNcXWn1tTEKb9Q== From: Gregory CLEMENT To: Paul Burton , Thomas Bogendoerfer , linux-mips@vger.kernel.org, Jiaxun Yang , Rob Herring , Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Vladimir Kondratiev , Tawfik Bayouk , Alexandre Belloni , =?utf-8?q?Th=C3=A9o_Lebr?= =?utf-8?q?un?= , Thomas Petazzoni Subject: [PATCH v4 11/22] MIPS: traps: Enhance memblock ebase allocation process Date: Fri, 8 Dec 2023 17:12:27 +0100 Message-ID: <20231208161249.1827174-12-gregory.clement@bootlin.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231208161249.1827174-1-gregory.clement@bootlin.com> References: <20231208161249.1827174-1-gregory.clement@bootlin.com> Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: gregory.clement@bootlin.com From: Jiaxun Yang We try to allocate from KSEG0 accessible space first, and then if we really can't allocate any memory from KSEG0 and we are sure that we support ebase in higher segment, give it another go without restriction. This can maximize the possibility of having ebase in KSEG0. Signed-off-by: Jiaxun Yang --- arch/mips/kernel/traps.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index b6e94654f6211..68f1dd54cde1c 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -2399,7 +2399,12 @@ void __init trap_init(void) memblock_reserve(ebase_pa, vec_size); } else { vec_size = max(vec_size, PAGE_SIZE); - ebase_pa = memblock_phys_alloc(vec_size, 1 << fls(vec_size)); + ebase_pa = memblock_phys_alloc_range(vec_size, 1 << fls(vec_size), + 0x0, KSEGX_SIZE - 1); + + if (!ebase_pa && (IS_ENABLED(CONFIG_EVA) || cpu_has_ebase_wg)) + ebase_pa = memblock_phys_alloc(vec_size, 1 << fls(vec_size)); + if (!ebase_pa) panic("%s: Failed to allocate %lu bytes align=0x%x\n", __func__, vec_size, 1 << fls(vec_size)); From patchwork Fri Dec 8 16:12:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gregory CLEMENT X-Patchwork-Id: 13485624 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="ZgOZUfh1" Received: from relay2-d.mail.gandi.net (relay2-d.mail.gandi.net [IPv6:2001:4b98:dc4:8::222]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 40EB519B7; Fri, 8 Dec 2023 08:13:05 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPSA id 70D2740009; Fri, 8 Dec 2023 16:13:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1702051983; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=NIhoVxVD5CTXDcniNp5rYpom7jfM8QqJjfzFliLqoD0=; b=ZgOZUfh1LANhEN/Bf3MT6GUFDlBY+NH+O8iGMC3KV/i7F/aX8JbtFbSjY4Nfxhpph/5lqp rPMNUVbSZj4KbCJX9m+gBze9AAsghziJaLzmu0CFir/C0sbRq2c7jTxpSD3Q6o7yeVBwgf NS1HyVm1dm+oKMH1Tb22LD8NqpZe94N3V3rdFgYJUxgbnWND1jS/A3oiWL5aOGySniDSLQ tqbzZeEiEQq3M48j3sFUkYz6PKCXuEDVcZRerwTDn/VOVSglyktUJbjWA8tygSZyA3050R Xf1mVXM9XTtQpeKdFntTYP0eJ9GTmvfvXgne6Rvv1s3Et+91DFjqxPSCMAWgSg== From: Gregory CLEMENT To: Paul Burton , Thomas Bogendoerfer , linux-mips@vger.kernel.org, Jiaxun Yang , Rob Herring , Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Vladimir Kondratiev , Tawfik Bayouk , Alexandre Belloni , =?utf-8?q?Th=C3=A9o_Lebr?= =?utf-8?q?un?= , Thomas Petazzoni Subject: [PATCH v4 12/22] MIPS: Get rid of CONFIG_NO_EXCEPT_FILL Date: Fri, 8 Dec 2023 17:12:28 +0100 Message-ID: <20231208161249.1827174-13-gregory.clement@bootlin.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231208161249.1827174-1-gregory.clement@bootlin.com> References: <20231208161249.1827174-1-gregory.clement@bootlin.com> Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: gregory.clement@bootlin.com From: Jiaxun Yang NO_EXCEPT_FILL is used to indicate platform that does not need to reserve ebase memory at start of kernel. This is true for all R2+ platform as they allocate ebase memory on fly, and also true for any platform that does not load kernel at start of physical memory. Get rid this Kconfig symbol by use macro to detect conditions above. gc: use KSEG0 only for 32 bit configuration Signed-off-by: Jiaxun Yang --- arch/mips/Kconfig | 8 -------- arch/mips/kernel/head.S | 7 +++++-- 2 files changed, 5 insertions(+), 10 deletions(-) diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 11bacbd3971f6..88965b8f8fcc4 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -150,7 +150,6 @@ config MIPS_GENERIC_KERNEL select MIPS_CPU_SCACHE select MIPS_GIC select MIPS_L1_CACHE_SHIFT_7 - select NO_EXCEPT_FILL select PCI_DRIVERS_GENERIC select SMP_UP if SMP select SWAP_IO_SPACE @@ -244,7 +243,6 @@ config BMIPS_GENERIC select ARCH_HAS_RESET_CONTROLLER select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL select BOOT_RAW - select NO_EXCEPT_FILL select USE_OF select CEVT_R4K select CSRC_R4K @@ -288,7 +286,6 @@ config BCM47XX select HAVE_PCI select IRQ_MIPS_CPU select SYS_HAS_CPU_MIPS32_R1 - select NO_EXCEPT_FILL select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_LITTLE_ENDIAN select SYS_SUPPORTS_MIPS16 @@ -424,7 +421,6 @@ config LANTIQ select IRQ_MIPS_CPU select CEVT_R4K select CSRC_R4K - select NO_EXCEPT_FILL select SYS_HAS_CPU_MIPS32_R1 select SYS_HAS_CPU_MIPS32_R2 select SYS_SUPPORTS_BIG_ENDIAN @@ -473,7 +469,6 @@ config MACH_LOONGSON64 select ISA select I8259 select IRQ_MIPS_CPU - select NO_EXCEPT_FILL select NR_CPUS_DEFAULT_64 select USE_GENERIC_EARLY_PRINTK_8250 select PCI_DRIVERS_GENERIC @@ -1156,9 +1151,6 @@ config PCI_GT64XXX_PCI0 config PCI_XTALK_BRIDGE bool -config NO_EXCEPT_FILL - bool - config MIPS_SPRAM bool diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S index b825ed4476c70..51a0ad49ac388 100644 --- a/arch/mips/kernel/head.S +++ b/arch/mips/kernel/head.S @@ -59,10 +59,13 @@ #endif .endm -#ifndef CONFIG_NO_EXCEPT_FILL +#if (MIPS_ISA_REV < 2) && \ + ((!defined( CONFIG_64BIT) && (VMLINUX_LOAD_ADDRESS == KSEG0)) || \ + (VMLINUX_LOAD_ADDRESS == CKSEG0)) /* * Reserved space for exception handlers. - * Necessary for machines which link their kernels at KSEG0. + * Necessary for machines which link their kernels at KSEG0 + * and incapable of moving ebase. */ .fill 0x400 #endif From patchwork Fri Dec 8 16:12:29 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gregory CLEMENT X-Patchwork-Id: 13485622 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="a1XWrhBw" Received: from relay5-d.mail.gandi.net (relay5-d.mail.gandi.net [IPv6:2001:4b98:dc4:8::225]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C396B19B9; Fri, 8 Dec 2023 08:13:05 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPSA id 0DD5F1C0002; Fri, 8 Dec 2023 16:13:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1702051984; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=H7xLfxUYcwv7Riq1WHIn/RhOYVTg87eiUqaEEpdrB/s=; b=a1XWrhBwy2U42+CHAI15N1pZZw64nKtcKOiF8/HzhGMSh3OlhtYU+v4OGR/MAbSdRCYtjY CTKh835lzvz4q15lYwWofmlQtxpo38uRt6hfmdhfr6kPOegVhjQ0ifchkoVP8/dTeSS1Ni Fm0116kMeAZdB5zU/TZuNT4iawBv1ByuXdgEhFxX4U1ODavMIxAu3J9Xy0eobLBsTisl6u XzcSpRkr7i1y0wtKIpcVnAeKW/CGqa4zJ/L4rkRpwibpe/nT99NSdlJDjxWdeJ0hDorjfE bD/Liomt/UKYSKiZZ3nTqb7XtNX7mBH3w+fa3ip6ToGQ3XHwfAzjLPBLWnY5xw== From: Gregory CLEMENT To: Paul Burton , Thomas Bogendoerfer , linux-mips@vger.kernel.org, Jiaxun Yang , Rob Herring , Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Vladimir Kondratiev , Tawfik Bayouk , Alexandre Belloni , =?utf-8?q?Th=C3=A9o_Lebr?= =?utf-8?q?un?= , Thomas Petazzoni , Gregory CLEMENT Subject: [PATCH v4 13/22] MIPS: traps: Give more explanations if ebase doesn't belong to KSEG0 Date: Fri, 8 Dec 2023 17:12:29 +0100 Message-ID: <20231208161249.1827174-14-gregory.clement@bootlin.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231208161249.1827174-1-gregory.clement@bootlin.com> References: <20231208161249.1827174-1-gregory.clement@bootlin.com> Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: gregory.clement@bootlin.com Now that we support having the kernel in XPHYS and not only in KSEG0, the case where ebase doesn't belong to KSEG0 is more likely to occur. However, in this scenariowe encounter a significant and intimidating stack dump without any explanation. To address this, we should eliminate the uninformative stack dump and replace it with a warning that provides a clear explanation of the issue. Signed-off-by: Gregory CLEMENT --- arch/mips/kernel/traps.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 68f1dd54cde1c..ec0cebfd2ef7b 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -2420,10 +2420,13 @@ void __init trap_init(void) * EVA is special though as it allows segments to be rearranged * and to become uncached during cache error handling. */ - if (!IS_ENABLED(CONFIG_EVA) && !WARN_ON(ebase_pa >= 0x20000000)) + if (!IS_ENABLED(CONFIG_EVA) && ebase_pa < 0x20000000) ebase = CKSEG0ADDR(ebase_pa); else ebase = (unsigned long)phys_to_virt(ebase_pa); + if (ebase_pa >= 0x20000000) + pr_warn("ebase(%pa) should better be in KSeg0", + &ebase_pa); } if (cpu_has_mmips) { From patchwork Fri Dec 8 16:12:30 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Gregory CLEMENT X-Patchwork-Id: 13485625 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="DIUQTvSt" Received: from relay8-d.mail.gandi.net (relay8-d.mail.gandi.net [217.70.183.201]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1EFAC199A; Fri, 8 Dec 2023 08:13:06 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPSA id CBB351BF207; Fri, 8 Dec 2023 16:13:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1702051985; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=gZ7oKcw0eqw6lprpX+dDIOb31hPprI1Sem1ITgrbMiU=; b=DIUQTvStCYaZCDNw2BKwsppgi1MyThi3GXWMjAyOLJJcwJ1m9PBM/Wp3Ejk8O3M1yW/GyM L1iAWLVv/mfPfz9Mpw5TYNrR8IPlI1ufz3IFJYsHJBJ+prBBC2ksd8w0il8iLz4b/pjZST Gql0ivCMa8Uro6MxN4mWqBGHGIPTyQPVqbjrTUOH8mRfLPtQ3piR1Od92HRv7NPmZijJdG o+Wlbo7zBRFgGFDMp3yZ9pn9J6hT/DxlzvX9+LNXNnh6M36L6M6Y2wppmMp8Kw418Y9jsw XyN6lDHf80yBU9EPMa4TztePaWc/nJ3RnW6/RJsDXu+V8U2bv1jTGm7WlLCJcQ== From: Gregory CLEMENT To: Paul Burton , Thomas Bogendoerfer , linux-mips@vger.kernel.org, Jiaxun Yang , Rob Herring , Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Vladimir Kondratiev , Tawfik Bayouk , Alexandre Belloni , =?utf-8?q?Th=C3=A9o_Lebr?= =?utf-8?q?un?= , Thomas Petazzoni , Gregory CLEMENT , =?utf-8?q?Philippe_Mathieu-D?= =?utf-8?q?aud=C3=A9?= , Rob Herring Subject: [PATCH v4 14/22] dt-bindings: Add vendor prefix for Mobileye Vision Technologies Ltd. Date: Fri, 8 Dec 2023 17:12:30 +0100 Message-ID: <20231208161249.1827174-15-gregory.clement@bootlin.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231208161249.1827174-1-gregory.clement@bootlin.com> References: <20231208161249.1827174-1-gregory.clement@bootlin.com> Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: gregory.clement@bootlin.com Mobileye Vision Technologies Ltd. is a company developing autonomous driving technologies and advanced driver-assistance systems (ADAS) including cameras, computer chips and software. Reviewed-by: Philippe Mathieu-Daudé Acked-by: Rob Herring Signed-off-by: Gregory CLEMENT --- Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml index 309b94c328c84..b45279bc97c14 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.yaml +++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml @@ -897,6 +897,8 @@ patternProperties: description: Miyoo "^mntre,.*": description: MNT Research GmbH + "^mobileye,.*": + description: Mobileye Vision Technologies Ltd. "^modtronix,.*": description: Modtronix Engineering "^moortec,.*": From patchwork Fri Dec 8 16:12:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gregory CLEMENT X-Patchwork-Id: 13485626 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="LQE172fg" Received: from relay7-d.mail.gandi.net (relay7-d.mail.gandi.net [217.70.183.200]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 93BF41BC0; Fri, 8 Dec 2023 08:13:07 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPSA id B036920010; Fri, 8 Dec 2023 16:13:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1702051986; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=hweC77A4qTiukJmzDsKWoV1ZESOCwoXMkWKMnWM/4uQ=; b=LQE172fgmzlMXAeapLmgwCmYmyNh9jdpHZZqPNGcYVccWCkp5dTjEedQPoZk8+LFCGm11U y5qMcGqGj+jQ+8gO6f0Z6G0GPLHZ+kYz2RfD95wDyTzZfQyq2tgJDM9u4Gov8oxSXVBlfn gDohevYbSvPa6HjQjgzG5qD/HG/gov+B46UVhfK0A3XJ8bE83ja3G4rllry/1iONEYkdMe 5DPTCgzGQVqF33bYUhFTLK3Wkmhz5+CzssdoFydmbVIJi2P0r6iOiilMrAu8CnHMn9Kgrg inLPJCAj/c8Msu2XluMJwcff80NX/WCJv3FxYUzjSDrfRe666ZSZNsU3MEGEEg== From: Gregory CLEMENT To: Paul Burton , Thomas Bogendoerfer , linux-mips@vger.kernel.org, Jiaxun Yang , Rob Herring , Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Vladimir Kondratiev , Tawfik Bayouk , Alexandre Belloni , =?utf-8?q?Th=C3=A9o_Lebr?= =?utf-8?q?un?= , Thomas Petazzoni , Gregory CLEMENT , Serge Semin , Krzysztof Kozlowski Subject: [PATCH v4 15/22] dt-bindings: mips: cpus: Sort the entries Date: Fri, 8 Dec 2023 17:12:31 +0100 Message-ID: <20231208161249.1827174-16-gregory.clement@bootlin.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231208161249.1827174-1-gregory.clement@bootlin.com> References: <20231208161249.1827174-1-gregory.clement@bootlin.com> Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: gregory.clement@bootlin.com The entries were nearly sorted but there were still some entries at the wrong places. Let's fix it. Reviewed-by: Serge Semin Acked-by: Krzysztof Kozlowski Signed-off-by: Gregory CLEMENT --- Documentation/devicetree/bindings/mips/cpus.yaml | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/Documentation/devicetree/bindings/mips/cpus.yaml b/Documentation/devicetree/bindings/mips/cpus.yaml index cf382dea3922c..9bc47868d28b6 100644 --- a/Documentation/devicetree/bindings/mips/cpus.yaml +++ b/Documentation/devicetree/bindings/mips/cpus.yaml @@ -23,22 +23,22 @@ properties: - brcm,bmips4380 - brcm,bmips5000 - brcm,bmips5200 - - ingenic,xburst-mxu1.0 - ingenic,xburst-fpu1.0-mxu1.1 - ingenic,xburst-fpu2.0-mxu2.0 + - ingenic,xburst-mxu1.0 - ingenic,xburst2-fpu2.1-mxu2.1-smt - loongson,gs264 - mips,m14Kc - - mips,mips4Kc - - mips,mips4KEc - - mips,mips24Kc + - mips,mips1004Kc - mips,mips24KEc + - mips,mips24Kc + - mips,mips4KEc + - mips,mips4Kc - mips,mips74Kc - - mips,mips1004Kc - mti,interaptiv - - mti,mips24KEc - mti,mips14KEc - mti,mips14Kc + - mti,mips24KEc reg: maxItems: 1 From patchwork Fri Dec 8 16:12:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Gregory CLEMENT X-Patchwork-Id: 13485627 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="m3cs815W" Received: from relay3-d.mail.gandi.net (relay3-d.mail.gandi.net [IPv6:2001:4b98:dc4:8::223]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 707731998; Fri, 8 Dec 2023 08:13:08 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPSA id 784406000E; Fri, 8 Dec 2023 16:13:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1702051987; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=/+KygOxw7upzFkFkKPQuC0aojbbTgfulc0YH1c5kUVo=; b=m3cs815WFIHLVIMLhVpCaxbd3K7f9rXDj+iediY1yqDNWcPpvHemvigMZWMmWiydQMiL5v Y2lflUCSbhGmxoNsQXYHHYf+rGe10/LW+e7OuBzS9yhrcnxmsl4Zuu5N82ki3h4b5odkkP aMlLn4Ws7tKhUXyHToRvLqTL7nioGl4pkhc3Ut/ROiuaGkfxqGjJm1HxUxbu85a6Rs103D e3sZpE/3w/Cgn5jJHGbm7EWZsNekekU6CvvjbnyVj2yOw9B6Uxw05VPeu/qylseNv5qS72 7lufyvNYUlS94mF5uKK3nKGiZOVqqCUCv3MNBdeV2M3fGwoQ+LNMuPyMK39adA== From: Gregory CLEMENT To: Paul Burton , Thomas Bogendoerfer , linux-mips@vger.kernel.org, Jiaxun Yang , Rob Herring , Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Vladimir Kondratiev , Tawfik Bayouk , Alexandre Belloni , =?utf-8?q?Th=C3=A9o_Lebr?= =?utf-8?q?un?= , Thomas Petazzoni , Gregory CLEMENT , Arnd Bergmann , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Serge Semin , Krzysztof Kozlowski Subject: [PATCH v4 16/22] dt-bindings: mips: cpu: Add I-Class I6500 Multiprocessor Core Date: Fri, 8 Dec 2023 17:12:32 +0100 Message-ID: <20231208161249.1827174-17-gregory.clement@bootlin.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231208161249.1827174-1-gregory.clement@bootlin.com> References: <20231208161249.1827174-1-gregory.clement@bootlin.com> Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: gregory.clement@bootlin.com The MIPS Warrior I-class I6500 was announced by Imagination Technologies in 2016 and is used in the Mobileye SoC EyeQ5. Acked-by: Arnd Bergmann Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Serge Semin Acked-by: Krzysztof Kozlowski Signed-off-by: Gregory CLEMENT --- Documentation/devicetree/bindings/mips/cpus.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/mips/cpus.yaml b/Documentation/devicetree/bindings/mips/cpus.yaml index 9bc47868d28b6..a85137add6689 100644 --- a/Documentation/devicetree/bindings/mips/cpus.yaml +++ b/Documentation/devicetree/bindings/mips/cpus.yaml @@ -23,6 +23,7 @@ properties: - brcm,bmips4380 - brcm,bmips5000 - brcm,bmips5200 + - img,i6500 - ingenic,xburst-fpu1.0-mxu1.1 - ingenic,xburst-fpu2.0-mxu2.0 - ingenic,xburst-mxu1.0 From patchwork Fri Dec 8 16:12:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Gregory CLEMENT X-Patchwork-Id: 13485628 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="ivGkgmAi" Received: from relay2-d.mail.gandi.net (relay2-d.mail.gandi.net [217.70.183.194]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E8AD71BC9; Fri, 8 Dec 2023 08:13:08 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPSA id 548624000B; Fri, 8 Dec 2023 16:13:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1702051987; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=5J0TpG59q99eDXCElU/oJiTiWId7juQenPAyUFsRAno=; b=ivGkgmAiSnty0xKiKcOSBMwX72WIYKoWexb6qnGIjTWQZsBVQPI4u7adPTblBLyYMIXZyc oI5bt2oZBSfNXnoONBPYL3SDNlYPX21jnwPno0P6wtm4TQwr8R2aQCkFYvfG9z5osVw6H3 f4jTfgUfwjraxZLMc+xYwEYD6y+ZlvHKFH4SzFu1hbcczCbuX6sQ/1j3moHqqjZSz2DExy 8WClEecCK6MQG5fY9bkxeMB7P42S+jg9ZvCK/V2YgwizdPrdluzPFaNOGcrs//4EyxAtOA zalneD6ezM267XYzc2JZWQm//wyaDSHFgWag4oLCXiOwpzg9+COqLzkfStJgMQ== From: Gregory CLEMENT To: Paul Burton , Thomas Bogendoerfer , linux-mips@vger.kernel.org, Jiaxun Yang , Rob Herring , Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Vladimir Kondratiev , Tawfik Bayouk , Alexandre Belloni , =?utf-8?q?Th=C3=A9o_Lebr?= =?utf-8?q?un?= , Thomas Petazzoni , Gregory CLEMENT , Rob Herring Subject: [PATCH v4 17/22] dt-bindings: mips: Add bindings for Mobileye SoCs Date: Fri, 8 Dec 2023 17:12:33 +0100 Message-ID: <20231208161249.1827174-18-gregory.clement@bootlin.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231208161249.1827174-1-gregory.clement@bootlin.com> References: <20231208161249.1827174-1-gregory.clement@bootlin.com> Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: gregory.clement@bootlin.com Add the yaml bindings for Mobileye SoCs. Currently only EyeQ5 is supported Reviewed-by: Rob Herring Signed-off-by: Gregory CLEMENT --- .../devicetree/bindings/mips/mobileye.yaml | 32 +++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 Documentation/devicetree/bindings/mips/mobileye.yaml diff --git a/Documentation/devicetree/bindings/mips/mobileye.yaml b/Documentation/devicetree/bindings/mips/mobileye.yaml new file mode 100644 index 0000000000000..831975f6b479f --- /dev/null +++ b/Documentation/devicetree/bindings/mips/mobileye.yaml @@ -0,0 +1,32 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +# Copyright 2023 Mobileye Vision Technologies Ltd. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mips/mobileye.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Mobileye SoC series + +maintainers: + - Vladimir Kondratiev + - Gregory CLEMENT + - Théo Lebrun + +description: + Boards with a Mobileye SoC shall have the following properties. + +properties: + $nodename: + const: '/' + + compatible: + oneOf: + - description: Boards with Mobileye EyeQ5 SoC + items: + - enum: + - mobileye,eyeq5-epm5 + - const: mobileye,eyeq5 + +additionalProperties: true + +... From patchwork Fri Dec 8 16:12:34 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gregory CLEMENT X-Patchwork-Id: 13485629 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="fDepcN8i" Received: from relay4-d.mail.gandi.net (relay4-d.mail.gandi.net [217.70.183.196]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9FD861BCB; Fri, 8 Dec 2023 08:13:09 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPSA id E5C6EE000A; Fri, 8 Dec 2023 16:13:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1702051988; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=CCkW8mMra/OC394XuBHllm2zOVLtoeHjnt7KGkK+CU0=; b=fDepcN8iFOEiZlIGqEw/O7cXSU12iUI36iaNXlDN9wx0AssfVtfSTh1GNT9dv/U4SiMqSP REU3VVo1lO/nZAmb/tkgTbct5CRV9o7z6HEzyBXARlBE0Hy6riV3oIP5tKLKsPTv1O5n5r pZAKB3LKwGGEUgD1GO8qJfnJBY2msu3LeP486tuy4+ngHOB358q5lOWfHnyrLqTNaXdHan T3ZFcf9GV++tkkRdVw1tbcyDTEkyq8pP7Bqxd4NeU4SvoEgJ6H9GjXmQXDjm97EMOVDXTL c2DgEcpdL2MSkcg3feATH6qGI1NzVbiSl/YaEWYbzGnEsx1vhGPKlOc5Al0zDQ== From: Gregory CLEMENT To: Paul Burton , Thomas Bogendoerfer , linux-mips@vger.kernel.org, Jiaxun Yang , Rob Herring , Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Vladimir Kondratiev , Tawfik Bayouk , Alexandre Belloni , =?utf-8?q?Th=C3=A9o_Lebr?= =?utf-8?q?un?= , Thomas Petazzoni , Gregory CLEMENT , Krzysztof Kozlowski Subject: [PATCH v4 18/22] dt-bindings: mfd: syscon: Document EyeQ5 OLB Date: Fri, 8 Dec 2023 17:12:34 +0100 Message-ID: <20231208161249.1827174-19-gregory.clement@bootlin.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231208161249.1827174-1-gregory.clement@bootlin.com> References: <20231208161249.1827174-1-gregory.clement@bootlin.com> Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: gregory.clement@bootlin.com Document Mobileye EyeQ5 compatibles for OLB registers that are miscellaneous SoC related registers. It is used to expose SoC specific configuration such as for example reset, clock or pinctrl. Acked-by: Krzysztof Kozlowski Signed-off-by: Gregory CLEMENT --- Documentation/devicetree/bindings/mfd/syscon.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/mfd/syscon.yaml b/Documentation/devicetree/bindings/mfd/syscon.yaml index 084b5c2a2a3c2..c90633460eeca 100644 --- a/Documentation/devicetree/bindings/mfd/syscon.yaml +++ b/Documentation/devicetree/bindings/mfd/syscon.yaml @@ -55,6 +55,7 @@ properties: - mediatek,mt8135-pctl-a-syscfg - mediatek,mt8135-pctl-b-syscfg - mediatek,mt8365-syscfg + - mobileye,eyeq5-olb - microchip,lan966x-cpu-syscon - microchip,sparx5-cpu-syscon - mstar,msc313-pmsleep From patchwork Fri Dec 8 16:12:35 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gregory CLEMENT X-Patchwork-Id: 13485632 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="fDYLQNH1" Received: from relay2-d.mail.gandi.net (relay2-d.mail.gandi.net [217.70.183.194]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 414071BCD; Fri, 8 Dec 2023 08:13:10 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPSA id 9E89C4000E; Fri, 8 Dec 2023 16:13:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1702051989; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=nfmmkPLG/ll5NZfOYiII8ssFiuAZWR9wcDBKqL8DiFA=; b=fDYLQNH1IyMnxW/+wkjZnJIhVhfRrB7BQOJxQZ3yPqyz79giZbTLciVXvf9f1flrp7ahyF OT5CFnRQhQGqQRbOi996suQKCivj57fmIPN/auzXjCPaECCIIqDYWjucfAEtET/3pBzQxx KjxwHtm/05LpwradsOC0UyibI8JhaVdRQQvPZzFxmyd0+46eLwlpIP+PkiJ8GJQoeUjwO0 xFD4BsGboCaLcOTbC19ERwDZLOvsing4DQDRXJzX8omNmf5dEhQyCMx0SU1HFxtm49fHHw foUdHdItwJ/9sj6aNBgcSLlC+QTPXIKdq2cDT93N7PTVXchs70o6XpyWI2FtGg== From: Gregory CLEMENT To: Paul Burton , Thomas Bogendoerfer , linux-mips@vger.kernel.org, Jiaxun Yang , Rob Herring , Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Vladimir Kondratiev , Tawfik Bayouk , Alexandre Belloni , =?utf-8?q?Th=C3=A9o_Lebr?= =?utf-8?q?un?= , Thomas Petazzoni , Gregory CLEMENT Subject: [PATCH v4 19/22] MIPS: mobileye: Add EyeQ5 dtsi Date: Fri, 8 Dec 2023 17:12:35 +0100 Message-ID: <20231208161249.1827174-20-gregory.clement@bootlin.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231208161249.1827174-1-gregory.clement@bootlin.com> References: <20231208161249.1827174-1-gregory.clement@bootlin.com> Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: gregory.clement@bootlin.com Add a device tree include file for the Mobileye EyeQ5 SoC. Based on the work of Slava Samsonov Signed-off-by: Gregory CLEMENT --- arch/mips/boot/dts/Makefile | 1 + .../boot/dts/mobileye/eyeq5-fixed-clocks.dtsi | 292 ++++++++++++++++++ arch/mips/boot/dts/mobileye/eyeq5.dtsi | 134 ++++++++ 3 files changed, 427 insertions(+) create mode 100644 arch/mips/boot/dts/mobileye/eyeq5-fixed-clocks.dtsi create mode 100644 arch/mips/boot/dts/mobileye/eyeq5.dtsi diff --git a/arch/mips/boot/dts/Makefile b/arch/mips/boot/dts/Makefile index 928f38a79dff9..edb8e8dee7583 100644 --- a/arch/mips/boot/dts/Makefile +++ b/arch/mips/boot/dts/Makefile @@ -8,6 +8,7 @@ subdir-$(CONFIG_LANTIQ) += lantiq subdir-$(CONFIG_MACH_LOONGSON64) += loongson subdir-$(CONFIG_SOC_VCOREIII) += mscc subdir-$(CONFIG_MIPS_MALTA) += mti +subdir-$(CONFIG_SOC_EYEQ5) += mobileye subdir-$(CONFIG_LEGACY_BOARD_SEAD3) += mti subdir-$(CONFIG_FIT_IMAGE_FDT_NI169445) += ni subdir-$(CONFIG_MACH_PIC32) += pic32 diff --git a/arch/mips/boot/dts/mobileye/eyeq5-fixed-clocks.dtsi b/arch/mips/boot/dts/mobileye/eyeq5-fixed-clocks.dtsi new file mode 100644 index 0000000000000..78f5533a95c67 --- /dev/null +++ b/arch/mips/boot/dts/mobileye/eyeq5-fixed-clocks.dtsi @@ -0,0 +1,292 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +/* + * Copyright 2023 Mobileye Vision Technologies Ltd. + */ + +/ { + /* Fixed clock */ + pll_cpu: pll-cpu { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <1500000000>; + }; + + pll_vdi: pll-vdi { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <1280000000>; + }; + + pll_per: pll-per { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <2000000000>; + }; + + pll_ddr0: pll-ddr0 { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <1857210000>; + }; + + pll_ddr1: pll-ddr1 { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <1857210000>; + }; + +/* PLL_CPU derivatives */ + occ_cpu: occ-cpu { + compatible = "fixed-factor-clock"; + clocks = <&pll_cpu>; + #clock-cells = <0>; + clock-div = <1>; + clock-mult = <1>; + }; + si_css0_ref_clk: si-css0-ref-clk { /* gate ClkRstGen_si_css0_ref */ + compatible = "fixed-factor-clock"; + clocks = <&occ_cpu>; + #clock-cells = <0>; + clock-div = <1>; + clock-mult = <1>; + }; + cpc_clk: cpc-clk { + compatible = "fixed-factor-clock"; + clocks = <&si_css0_ref_clk>; + #clock-cells = <0>; + clock-div = <1>; + clock-mult = <1>; + }; + core0_clk: core0-clk { + compatible = "fixed-factor-clock"; + clocks = <&si_css0_ref_clk>; + #clock-cells = <0>; + clock-div = <1>; + clock-mult = <1>; + }; + core1_clk: core1-clk { + compatible = "fixed-factor-clock"; + clocks = <&si_css0_ref_clk>; + #clock-cells = <0>; + clock-div = <1>; + clock-mult = <1>; + }; + core2_clk: core2-clk { + compatible = "fixed-factor-clock"; + clocks = <&si_css0_ref_clk>; + #clock-cells = <0>; + clock-div = <1>; + clock-mult = <1>; + }; + core3_clk: core3-clk { + compatible = "fixed-factor-clock"; + clocks = <&si_css0_ref_clk>; + #clock-cells = <0>; + clock-div = <1>; + clock-mult = <1>; + }; + cm_clk: cm-clk { + compatible = "fixed-factor-clock"; + clocks = <&si_css0_ref_clk>; + #clock-cells = <0>; + clock-div = <1>; + clock-mult = <1>; + }; + mem_clk: mem-clk { + compatible = "fixed-factor-clock"; + clocks = <&si_css0_ref_clk>; + #clock-cells = <0>; + clock-div = <1>; + clock-mult = <1>; + }; + occ_isram: occ-isram { + compatible = "fixed-factor-clock"; + clocks = <&pll_cpu>; + #clock-cells = <0>; + clock-div = <2>; + clock-mult = <1>; + }; + isram_clk: isram-clk { /* gate ClkRstGen_isram */ + compatible = "fixed-factor-clock"; + clocks = <&occ_isram>; + #clock-cells = <0>; + clock-div = <1>; + clock-mult = <1>; + }; + occ_dbu: occ-dbu { + compatible = "fixed-factor-clock"; + clocks = <&pll_cpu>; + #clock-cells = <0>; + clock-div = <10>; + clock-mult = <1>; + }; + si_dbu_tp_pclk: si-dbu-tp-pclk { /* gate ClkRstGen_dbu */ + compatible = "fixed-factor-clock"; + clocks = <&occ_dbu>; + #clock-cells = <0>; + clock-div = <1>; + clock-mult = <1>; + }; +/* PLL_VDI derivatives */ + occ_vdi: occ-vdi { + compatible = "fixed-factor-clock"; + clocks = <&pll_vdi>; + #clock-cells = <0>; + clock-div = <2>; + clock-mult = <1>; + }; + vdi_clk: vdi-clk { /* gate ClkRstGen_vdi */ + compatible = "fixed-factor-clock"; + clocks = <&occ_vdi>; + #clock-cells = <0>; + clock-div = <1>; + clock-mult = <1>; + }; + occ_can_ser: occ-can-ser { + compatible = "fixed-factor-clock"; + clocks = <&pll_vdi>; + #clock-cells = <0>; + clock-div = <16>; + clock-mult = <1>; + }; + can_ser_clk: can-ser-clk { /* gate ClkRstGen_can_ser */ + compatible = "fixed-factor-clock"; + clocks = <&occ_can_ser>; + #clock-cells = <0>; + clock-div = <1>; + clock-mult = <1>; + }; + i2c_ser_clk: i2c-ser-clk { + compatible = "fixed-factor-clock"; + clocks = <&pll_vdi>; + #clock-cells = <0>; + clock-div = <20>; + clock-mult = <1>; + }; +/* PLL_PER derivatives */ + occ_periph: occ-periph { + compatible = "fixed-factor-clock"; + clocks = <&pll_per>; + #clock-cells = <0>; + clock-div = <16>; + clock-mult = <1>; + }; + periph_clk: periph-clk { + compatible = "fixed-factor-clock"; + clocks = <&occ_periph>; + #clock-cells = <0>; + clock-div = <1>; + clock-mult = <1>; + }; + can_clk: can-clk { + compatible = "fixed-factor-clock"; + clocks = <&occ_periph>; + #clock-cells = <0>; + clock-div = <1>; + clock-mult = <1>; + }; + spi_clk: spi-clk { + compatible = "fixed-factor-clock"; + clocks = <&occ_periph>; + #clock-cells = <0>; + clock-div = <1>; + clock-mult = <1>; + }; + uart_clk: uart-clk { + compatible = "fixed-factor-clock"; + clocks = <&occ_periph>; + #clock-cells = <0>; + clock-div = <1>; + clock-mult = <1>; + }; + i2c_clk: i2c-clk { + compatible = "fixed-factor-clock"; + clocks = <&occ_periph>; + #clock-cells = <0>; + clock-div = <1>; + clock-mult = <1>; + clock-output-names = "i2c_clk"; + }; + timer_clk: timer-clk { + compatible = "fixed-factor-clock"; + clocks = <&occ_periph>; + #clock-cells = <0>; + clock-div = <1>; + clock-mult = <1>; + clock-output-names = "timer_clk"; + }; + gpio_clk: gpio-clk { + compatible = "fixed-factor-clock"; + clocks = <&occ_periph>; + #clock-cells = <0>; + clock-div = <1>; + clock-mult = <1>; + clock-output-names = "gpio_clk"; + }; + emmc_sys_clk: emmc-sys-clk { + compatible = "fixed-factor-clock"; + clocks = <&pll_per>; + #clock-cells = <0>; + clock-div = <10>; + clock-mult = <1>; + clock-output-names = "emmc_sys_clk"; + }; + ccf_ctrl_clk: ccf-ctrl-clk { + compatible = "fixed-factor-clock"; + clocks = <&pll_per>; + #clock-cells = <0>; + clock-div = <4>; + clock-mult = <1>; + clock-output-names = "ccf_ctrl_clk"; + }; + occ_mjpeg_core: occ-mjpeg-core { + compatible = "fixed-factor-clock"; + clocks = <&pll_per>; + #clock-cells = <0>; + clock-div = <2>; + clock-mult = <1>; + clock-output-names = "occ_mjpeg_core"; + }; + hsm_clk: hsm-clk { /* gate ClkRstGen_hsm */ + compatible = "fixed-factor-clock"; + clocks = <&occ_mjpeg_core>; + #clock-cells = <0>; + clock-div = <1>; + clock-mult = <1>; + clock-output-names = "hsm_clk"; + }; + mjpeg_core_clk: mjpeg-core-clk { /* gate ClkRstGen_mjpeg_gen */ + compatible = "fixed-factor-clock"; + clocks = <&occ_mjpeg_core>; + #clock-cells = <0>; + clock-div = <1>; + clock-mult = <1>; + clock-output-names = "mjpeg_core_clk"; + }; + fcmu_a_clk: fcmu-a-clk { + compatible = "fixed-factor-clock"; + clocks = <&pll_per>; + #clock-cells = <0>; + clock-div = <20>; + clock-mult = <1>; + clock-output-names = "fcmu_a_clk"; + }; + occ_pci_sys: occ-pci-sys { + compatible = "fixed-factor-clock"; + clocks = <&pll_per>; + #clock-cells = <0>; + clock-div = <8>; + clock-mult = <1>; + clock-output-names = "occ_pci_sys"; + }; + pclk: pclk { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <250000000>; /* 250MHz */ + }; + tsu_clk: tsu-clk { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <125000000>; /* 125MHz */ + }; +}; diff --git a/arch/mips/boot/dts/mobileye/eyeq5.dtsi b/arch/mips/boot/dts/mobileye/eyeq5.dtsi new file mode 100644 index 0000000000000..2968c467a0552 --- /dev/null +++ b/arch/mips/boot/dts/mobileye/eyeq5.dtsi @@ -0,0 +1,134 @@ +// SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause */ +/* +* Copyright 2023 Mobileye Vision Technologies Ltd. +*/ + +#include + +/memreserve/ 0x40000000 0xc0000000; /* DDR32 */ +/memreserve/ 0x08000000 0x08000000; /* DDR_LOW */ + +#include "eyeq5-fixed-clocks.dtsi" + +/ { + #address-cells = <2>; + #size-cells = <2>; + cpus { + #address-cells = <1>; + #size-cells = <0>; + cpu@0 { + device_type = "cpu"; + compatible = "img,i6500"; + reg = <0>; + clocks = <&core0_clk>; + }; + }; + + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + /* These reserved memory regions are also defined in bootmanager + * for configuring inbound translation for BARS, don't change + * these without syncing with bootmanager + */ + shmem0_reserved: shmem@804000000 { + reg = <0x8 0x04000000 0x0 0x1000000>; + }; + shmem1_reserved: shmem@805000000 { + reg = <0x8 0x05000000 0x0 0x1000000>; + }; + pci0_msi_reserved: pci0-msi@806000000 { + reg = <0x8 0x06000000 0x0 0x100000>; + }; + pci1_msi_reserved: pci1-msi@806100000 { + reg = <0x8 0x06100000 0x0 0x100000>; + }; + + mini_coredump0_reserved: mini-coredump0@806200000 { + reg = <0x8 0x06200000 0x0 0x100000>; + }; + mhm_reserved_0: the-mhm-reserved-0@0 { + reg = <0x8 0x00000000 0x0 0x0000800>; + }; + }; + + aliases { + serial0 = &uart0; + serial1 = &uart1; + serial2 = &uart2; + }; + + cpu_intc: interrupt-controller { + compatible = "mti,cpu-interrupt-controller"; + interrupt-controller; + #address-cells = <0>; + #interrupt-cells = <1>; + }; + + soc: soc { + #address-cells = <2>; + #size-cells = <2>; + ranges; + compatible = "simple-bus"; + + uart0: serial@800000 { + compatible = "arm,pl011", "arm,primecell"; + reg = <0 0x800000 0x0 0x1000>; + reg-io-width = <4>; + interrupt-parent = <&gic>; + interrupts = ; + clocks = <&uart_clk>, <&occ_periph>; + clock-names = "uartclk", "apb_pclk"; + }; + + uart1: serial@900000 { + compatible = "arm,pl011", "arm,primecell"; + reg = <0 0x900000 0x0 0x1000>; + reg-io-width = <4>; + interrupt-parent = <&gic>; + interrupts = ; + clocks = <&uart_clk>, <&occ_periph>; + clock-names = "uartclk", "apb_pclk"; + }; + + uart2: serial@a00000 { + compatible = "arm,pl011", "arm,primecell"; + reg = <0 0xa00000 0x0 0x1000>; + reg-io-width = <4>; + interrupt-parent = <&gic>; + interrupts = ; + clocks = <&uart_clk>, <&occ_periph>; + clock-names = "uartclk", "apb_pclk"; + }; + + olb: olb@e00000 { + compatible = "mobileye,eyeq5-olb", "syscon", "simple-mfd"; + reg = <0 0xe00000 0x0 0x400>; + reg-io-width = <4>; + }; + + gic: interrupt-controller@140000 { + compatible = "mti,gic"; + reg = <0x0 0x140000 0x0 0x20000>; + interrupt-controller; + #interrupt-cells = <3>; + + /* + * Declare the interrupt-parent even though the mti,gic + * binding doesn't require it, such that the kernel can + * figure out that cpu_intc is the root interrupt + * controller & should be probed first. + */ + interrupt-parent = <&cpu_intc>; + + timer { + compatible = "mti,gic-timer"; + interrupts = ; + clocks = <&core0_clk>; + }; + }; + }; +}; + From patchwork Fri Dec 8 16:12:36 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gregory CLEMENT X-Patchwork-Id: 13485630 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="cM20wfJt" Received: from relay8-d.mail.gandi.net (relay8-d.mail.gandi.net [217.70.183.201]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D42961BCE; Fri, 8 Dec 2023 08:13:10 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPSA id 466591BF203; Fri, 8 Dec 2023 16:13:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1702051989; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=PyCSrF1JgQ4iScyRiIk/6IapzgqC+RV3b88nNkBvQYI=; b=cM20wfJtasGQ+mCZFRmHo4vkSqoULHajs3WdwRj+hscmmdPYtofjqLB8RXe+gB4su8hhic Imvur350I0Z9LEtfbaD/h0MNBoiBupBVHsynVleSReR721Dct7KwHSATrdZ4vKCy8WHKVP 5bEmRxcwy3ebF14fn2wXrmTjbrYORvSPurBhTIUqdBVUw8YNZXLdMmlIwqBbDiCFjY75Nd 7R05TgYNn9D1dFhNj7nEyecO0DEaNh4WY/M9/vc+xVADMro4Mt5Oom5SktduHh8AmFN4Um O+Y1NmEsiXh+sIX2vYthip3LtfxcdJZroSCcKxEUS0i9Y7o5XGlVfFQ4POXRRw== From: Gregory CLEMENT To: Paul Burton , Thomas Bogendoerfer , linux-mips@vger.kernel.org, Jiaxun Yang , Rob Herring , Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Vladimir Kondratiev , Tawfik Bayouk , Alexandre Belloni , =?utf-8?q?Th=C3=A9o_Lebr?= =?utf-8?q?un?= , Thomas Petazzoni , Gregory CLEMENT Subject: [PATCH v4 20/22] MIPS: mobileye: Add EPM5 device tree Date: Fri, 8 Dec 2023 17:12:36 +0100 Message-ID: <20231208161249.1827174-21-gregory.clement@bootlin.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231208161249.1827174-1-gregory.clement@bootlin.com> References: <20231208161249.1827174-1-gregory.clement@bootlin.com> Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: gregory.clement@bootlin.com Add a device tree for the Mobileye EPM5 evaluation board. Signed-off-by: Gregory CLEMENT --- arch/mips/boot/dts/mobileye/Makefile | 4 ++++ arch/mips/boot/dts/mobileye/eyeq5-epm5.dts | 24 ++++++++++++++++++++++ 2 files changed, 28 insertions(+) create mode 100644 arch/mips/boot/dts/mobileye/Makefile create mode 100644 arch/mips/boot/dts/mobileye/eyeq5-epm5.dts diff --git a/arch/mips/boot/dts/mobileye/Makefile b/arch/mips/boot/dts/mobileye/Makefile new file mode 100644 index 0000000000000..b6fa261f0a3a0 --- /dev/null +++ b/arch/mips/boot/dts/mobileye/Makefile @@ -0,0 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only +# Copyright 2023 Mobileye Vision Technologies Ltd. + +dtb-$(CONFIG_SOC_EYEQ5) += eyeq5-epm5.dtb diff --git a/arch/mips/boot/dts/mobileye/eyeq5-epm5.dts b/arch/mips/boot/dts/mobileye/eyeq5-epm5.dts new file mode 100644 index 0000000000000..ff16c3c760a19 --- /dev/null +++ b/arch/mips/boot/dts/mobileye/eyeq5-epm5.dts @@ -0,0 +1,24 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +/* + * Copyright 2023 Mobileye Vision Technologies Ltd. + */ + +/dts-v1/; + +#include "eyeq5.dtsi" + +/ { + compatible = "mobileye,eyeq5-epm5", "mobileye,eyeq5"; + model = "Mobile EyeQ5 MP5 Evaluation board"; + + chosen { + bootargs = "earlycon"; + stdout-path = "serial2:115200n8"; + }; + + memory@0 { + device_type = "memory"; + reg = <0x0 0x08000000 0x0 0x08000000>, + <0x8 0x00000000 0x0 0x78000000>; + }; +}; From patchwork Fri Dec 8 16:12:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gregory CLEMENT X-Patchwork-Id: 13485631 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="WJAOVmHz" Received: from relay8-d.mail.gandi.net (relay8-d.mail.gandi.net [217.70.183.201]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9087F19A6; Fri, 8 Dec 2023 08:13:11 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPSA id D33A11BF207; Fri, 8 Dec 2023 16:13:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1702051990; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=SPEzQFZi3EY+1srAURAaeFdl3rOp0xXgNIgrytCx+9g=; b=WJAOVmHzy9BHQXKJJKJP7OGCtpLckqhsjUp/JiiLNb1WbUHNjykXPErwS569LM1/DxD2YS hdgKtxsZ+96Muq9gft5MvCIVuwAYQV0DGXw6rIozP8psfqeIFg2BtcT/vMjhiBEWxqfvNW PQZ8p4On2lsOROI51zKw4apFwCTkcCQzdkrRMR89J8VOjtkLH6TSntkG9XVtDCZdkdLpDb WDzmMmcAnONGcQA300jFLBuws+/ENQvzm5+nisY2VaKd7K71ozWr4i+2aWHOu7l30YfISH mNxbFKpa23tRKojeLg4XYowgV8fXjqJBOueAv7NdCCxQwV/vG9iDsrTsq34Fpw== From: Gregory CLEMENT To: Paul Burton , Thomas Bogendoerfer , linux-mips@vger.kernel.org, Jiaxun Yang , Rob Herring , Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Vladimir Kondratiev , Tawfik Bayouk , Alexandre Belloni , =?utf-8?q?Th=C3=A9o_Lebr?= =?utf-8?q?un?= , Thomas Petazzoni , Gregory CLEMENT Subject: [PATCH v4 21/22] MIPS: generic: Add support for Mobileye EyeQ5 Date: Fri, 8 Dec 2023 17:12:37 +0100 Message-ID: <20231208161249.1827174-22-gregory.clement@bootlin.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231208161249.1827174-1-gregory.clement@bootlin.com> References: <20231208161249.1827174-1-gregory.clement@bootlin.com> Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: gregory.clement@bootlin.com Introduce support for the MIPS based Mobileye EyeQ5 SoCs. Signed-off-by: Gregory CLEMENT --- arch/mips/configs/generic/board-eyeq5.config | 41 ++++++++++++++++++++ arch/mips/generic/Kconfig | 15 +++++++ arch/mips/generic/Platform | 2 + arch/mips/generic/board-epm5.its.S | 24 ++++++++++++ 4 files changed, 82 insertions(+) create mode 100644 arch/mips/configs/generic/board-eyeq5.config create mode 100644 arch/mips/generic/board-epm5.its.S diff --git a/arch/mips/configs/generic/board-eyeq5.config b/arch/mips/configs/generic/board-eyeq5.config new file mode 100644 index 0000000000000..7a44bd9a46f17 --- /dev/null +++ b/arch/mips/configs/generic/board-eyeq5.config @@ -0,0 +1,41 @@ +CONFIG_HIGH_RES_TIMERS=y +CONFIG_TASKSTATS=y +CONFIG_FIT_IMAGE_FDT_EPM5=y +CONFIG_BOARD_EYEQ5=y +CONFIG_PHYSICAL_START=0xA800000080480000 +CONFIG_CPU_HAS_MSA=y +CONFIG_NET_KEY=y +CONFIG_CAN=y +CONFIG_PCI=y +CONFIG_PCI_MSI=y +CONFIG_PCI_DEBUG=y +CONFIG_PCI_ENDPOINT=y +CONFIG_CONNECTOR=y +CONFIG_MTD=y +CONFIG_MTD_CMDLINE_PARTS=y +CONFIG_MTD_BLOCK=y +CONFIG_MTD_RAM=y +CONFIG_MTD_ROM=y +CONFIG_MTD_PHYSMAP=y +CONFIG_MTD_PHYSMAP_OF=y +CONFIG_MTD_BLOCK2MTD=y +CONFIG_MTD_UBI=y +CONFIG_MTD_UBI_BLOCK=y +CONFIG_NETDEVICES=y +CONFIG_MACVLAN=y +CONFIG_IPVLAN=y +CONFIG_MACB=y +CONFIG_MARVELL_PHY=y +CONFIG_MICREL_PHY=y +CONFIG_CAN_M_CAN=y +CONFIG_SERIAL_AMBA_PL011=y +CONFIG_SERIAL_AMBA_PL011_CONSOLE=y +CONFIG_PINCTRL=y +CONFIG_MMC=y +CONFIG_MMC_SDHCI=y +CONFIG_MMC_SDHCI_CADENCE=y +CONFIG_RESET_CONTROLLER=y +CONFIG_FANOTIFY=y +CONFIG_ROMFS_FS=y +CONFIG_ROMFS_BACKED_BY_BOTH=y +CONFIG_PAGE_SIZE_16KB=y \ No newline at end of file diff --git a/arch/mips/generic/Kconfig b/arch/mips/generic/Kconfig index 7dc5b3821cc6e..04e1fc6f789b5 100644 --- a/arch/mips/generic/Kconfig +++ b/arch/mips/generic/Kconfig @@ -48,6 +48,13 @@ config SOC_VCOREIII config MSCC_OCELOT bool +config SOC_EYEQ5 + select ARM_AMBA + select WEAK_ORDERING + select WEAK_REORDERING_BEYOND_LLSC + select PHYSICAL_START_BOOL + bool + comment "FIT/UHI Boards" config FIT_IMAGE_FDT_BOSTON @@ -124,4 +131,12 @@ config VIRT_BOARD_RANCHU Android emulator. Android emulator is based on Qemu, and contains the support for the same set of virtual devices. +config FIT_IMAGE_FDT_EPM5 + bool "Include FDT for Mobileye EyeQ5 development platforms" + select SOC_EYEQ5 + default n + help + Enable this to include the FDT for the EyeQ5 development platforms + from Mobileye in the FIT kernel image. + This requires u-boot on the platform. endif diff --git a/arch/mips/generic/Platform b/arch/mips/generic/Platform index 0c03623f38970..45db9824a11d6 100644 --- a/arch/mips/generic/Platform +++ b/arch/mips/generic/Platform @@ -24,3 +24,5 @@ its-$(CONFIG_FIT_IMAGE_FDT_JAGUAR2) += board-jaguar2.its.S its-$(CONFIG_FIT_IMAGE_FDT_SERVAL) += board-serval.its.S its-$(CONFIG_FIT_IMAGE_FDT_XILFPGA) += board-xilfpga.its.S its-$(CONFIG_FIT_IMAGE_FDT_MARDUK) += board-marduk.its.S +its-$(CONFIG_FIT_IMAGE_FDT_EPM5) += board-epm5.its.S + diff --git a/arch/mips/generic/board-epm5.its.S b/arch/mips/generic/board-epm5.its.S new file mode 100644 index 0000000000000..08e8c4f183d63 --- /dev/null +++ b/arch/mips/generic/board-epm5.its.S @@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */ +/ { + images { + fdt-mobileye-epm5 { + description = "Mobileeye MP5 Device Tree"; + data = /incbin/("boot/dts/mobileye/eyeq5-epm5.dtb"); + type = "flat_dt"; + arch = "mips"; + compression = "none"; + hash { + algo = "sha1"; + }; + }; + }; + + configurations { + default = "conf-1"; + conf-1 { + description = "Mobileye EPM5 Linux kernel"; + kernel = "kernel"; + fdt = "fdt-mobileye-epm5"; + }; + }; +}; From patchwork Fri Dec 8 16:12:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Gregory CLEMENT X-Patchwork-Id: 13485633 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="dqmVxkXt" Received: from relay5-d.mail.gandi.net (relay5-d.mail.gandi.net [217.70.183.197]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3404519A7; Fri, 8 Dec 2023 08:13:12 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPSA id 8277D1C000C; Fri, 8 Dec 2023 16:13:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1702051990; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=NF5qApw6fMhlr7kXSD5A4ZD9LfVmR7kuExevs+ZXZcs=; b=dqmVxkXtGUv26CssdUyeuf1JPLFgDmKsjtBsv7WL/HdvcXJLfqmSTUQxAV5gWXl9h6ErN6 eMfASaMcWMvfVJxw7GzWe25oNdvTHkUOFOsrkKK/USboLo3QxEBD3izpo6vVfbABkp8pzN cCcbTmP0ZHnIWb8+LCOli8xdk5B6455aRy0g9QnICPOyJ+sYmrM/1l9SRLkmq5WM73cVm/ GYGHPINXkwPsRPMFyXQUWlw3Uws+SV3QDUftGo1A4Q6tGFri87a8tri8WgzkwySDO9jrkN vgAnqNjKtiB424dikq1diTUVTPAorHR6kcRGckPSQCRi3GaPWgYKWZhK/5K2og== From: Gregory CLEMENT To: Paul Burton , Thomas Bogendoerfer , linux-mips@vger.kernel.org, Jiaxun Yang , Rob Herring , Krzysztof Kozlowski , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Vladimir Kondratiev , Tawfik Bayouk , Alexandre Belloni , =?utf-8?q?Th=C3=A9o_Lebr?= =?utf-8?q?un?= , Thomas Petazzoni , Gregory CLEMENT Subject: [PATCH v4 22/22] MAINTAINERS: Add entry for Mobileye MIPS SoCs Date: Fri, 8 Dec 2023 17:12:38 +0100 Message-ID: <20231208161249.1827174-23-gregory.clement@bootlin.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231208161249.1827174-1-gregory.clement@bootlin.com> References: <20231208161249.1827174-1-gregory.clement@bootlin.com> Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: gregory.clement@bootlin.com Add Vlad, Théo and myself as co-maintainers for the Mobileye MIPS SoCs. Signed-off-by: Vladimir Kondratiev Signed-off-by: Théo Lebrun Signed-off-by: Gregory CLEMENT --- MAINTAINERS | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 97f51d5ec1cfd..b9ddedc154091 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -14607,6 +14607,18 @@ W: http://palosaari.fi/linux/ Q: http://patchwork.linuxtv.org/project/linux-media/list/ F: drivers/media/dvb-frontends/mn88473* +MOBILEYE MIPS SOCS +M: Vladimir Kondratiev +M: Gregory CLEMENT +M: Théo Lebrun +L: linux-mips@vger.kernel.org +S: Maintained +F: Documentation/devicetree/bindings/mips/mobileye.yaml +F: arch/mips/boot/dts/mobileye/ +F: arch/mips/configs/generic/board-eyeq5.config +F: arch/mips/generic/board-epm5.its.S +F: include/dt-bindings/soc/mobileye,eyeq5.h + MODULE SUPPORT M: Luis Chamberlain L: linux-modules@vger.kernel.org