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Wed, 10 Jan 2024 23:12:25 +0300 From: Alexey Romanov To: , , , , , , , , , , CC: , , , , , , Alexey Romanov , Jan Dakinevich Subject: [PATCH v1 01/24] drivers: crypto: meson: don't hardcode IRQ count Date: Wed, 10 Jan 2024 23:11:17 +0300 Message-ID: <20240110201216.18016-2-avromanov@salutedevices.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20240110201216.18016-1-avromanov@salutedevices.com> References: <20240110201216.18016-1-avromanov@salutedevices.com> MIME-Version: 1.0 X-Originating-IP: [100.64.160.123] X-ClientProxiedBy: p-i-exch-sc-m02.sberdevices.ru (172.16.192.103) To p-i-exch-sc-m01.sberdevices.ru (172.16.192.107) X-KSMG-Rule-ID: 10 X-KSMG-Message-Action: clean X-KSMG-AntiSpam-Lua-Profiles: 182544 [Jan 10 2024] X-KSMG-AntiSpam-Version: 6.1.0.3 X-KSMG-AntiSpam-Envelope-From: avromanov@salutedevices.com X-KSMG-AntiSpam-Rate: 0 X-KSMG-AntiSpam-Status: not_detected X-KSMG-AntiSpam-Method: none X-KSMG-AntiSpam-Auth: dkim=none X-KSMG-AntiSpam-Info: LuaCore: 7 0.3.7 6d6bf5bd8eea7373134f756a2fd73e9456bb7d1a, {Tracking_from_domain_doesnt_match_to}, 127.0.0.199:7.1.2;100.64.160.123:7.1.2;smtp.sberdevices.ru:5.0.1,7.1.1;salutedevices.com:7.1.1;d41d8cd98f00b204e9800998ecf8427e.com:7.1.1, FromAlignment: s, ApMailHostAddress: 100.64.160.123 X-MS-Exchange-Organization-SCL: -1 X-KSMG-AntiSpam-Interceptor-Info: scan successful X-KSMG-AntiPhishing: Clean X-KSMG-LinksScanning: Clean X-KSMG-AntiVirus: Kaspersky Secure Mail Gateway, version 2.0.1.6960, bases: 2024/01/10 17:01:00 #23071477 X-KSMG-AntiVirus-Status: Clean, skipped X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240110_121234_269087_F5A17746 X-CRM114-Status: GOOD ( 23.83 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org IRQ count is no longer hardcoded, and make it part of struct meson_flow. We need this for extend driver support for other Amlogic SoC's. Signed-off-by: Alexey Romanov Signed-off-by: Jan Dakinevich --- drivers/crypto/amlogic/amlogic-gxl-cipher.c | 2 +- drivers/crypto/amlogic/amlogic-gxl-core.c | 47 ++++++++++++--------- drivers/crypto/amlogic/amlogic-gxl.h | 8 ++-- 3 files changed, 31 insertions(+), 26 deletions(-) diff --git a/drivers/crypto/amlogic/amlogic-gxl-cipher.c b/drivers/crypto/amlogic/amlogic-gxl-cipher.c index af017a087ebf..e01ed6347c3d 100644 --- a/drivers/crypto/amlogic/amlogic-gxl-cipher.c +++ b/drivers/crypto/amlogic/amlogic-gxl-cipher.c @@ -19,7 +19,7 @@ static int get_engine_number(struct meson_dev *mc) { - return atomic_inc_return(&mc->flow) % MAXFLOW; + return atomic_inc_return(&mc->flow) % mc->flow_cnt; } static bool meson_cipher_need_fallback(struct skcipher_request *areq) diff --git a/drivers/crypto/amlogic/amlogic-gxl-core.c b/drivers/crypto/amlogic/amlogic-gxl-core.c index 937187027ad5..a5df061f9890 100644 --- a/drivers/crypto/amlogic/amlogic-gxl-core.c +++ b/drivers/crypto/amlogic/amlogic-gxl-core.c @@ -26,8 +26,8 @@ static irqreturn_t meson_irq_handler(int irq, void *data) int flow; u32 p; - for (flow = 0; flow < MAXFLOW; flow++) { - if (mc->irqs[flow] == irq) { + for (flow = 0; flow < mc->flow_cnt; flow++) { + if (mc->chanlist[flow].irq == irq) { p = readl(mc->base + ((0x04 + flow) << 2)); if (p) { writel_relaxed(0xF, mc->base + ((0x4 + flow) << 2)); @@ -103,7 +103,7 @@ static int meson_debugfs_show(struct seq_file *seq, void *v) struct meson_dev *mc = seq->private; int i; - for (i = 0; i < MAXFLOW; i++) + for (i = 0; i < mc->flow_cnt; i++) seq_printf(seq, "Channel %d: nreq %lu\n", i, mc->chanlist[i].stat_req); for (i = 0; i < ARRAY_SIZE(mc_algs); i++) { @@ -138,14 +138,32 @@ static void meson_free_chanlist(struct meson_dev *mc, int i) */ static int meson_allocate_chanlist(struct meson_dev *mc) { + struct platform_device *pdev = to_platform_device(mc->dev); int i, err; - mc->chanlist = devm_kcalloc(mc->dev, MAXFLOW, + mc->flow_cnt = platform_irq_count(pdev); + if (mc->flow_cnt <= 0) { + dev_err(mc->dev, "No IRQs defined\n"); + return -ENODEV; + } + + mc->chanlist = devm_kcalloc(mc->dev, mc->flow_cnt, sizeof(struct meson_flow), GFP_KERNEL); if (!mc->chanlist) return -ENOMEM; - for (i = 0; i < MAXFLOW; i++) { + for (i = 0; i < mc->flow_cnt; i++) { + mc->chanlist[i].irq = platform_get_irq(pdev, i); + if (mc->chanlist[i].irq < 0) + return mc->chanlist[i].irq; + + err = devm_request_irq(mc->dev, mc->chanlist[i].irq, + meson_irq_handler, 0, "aml-crypto", mc); + if (err < 0) { + dev_err(mc->dev, "Cannot request IRQ for flow %d\n", i); + return err; + } + init_completion(&mc->chanlist[i].complete); mc->chanlist[i].engine = crypto_engine_alloc_init(mc->dev, true); @@ -215,7 +233,7 @@ static void meson_unregister_algs(struct meson_dev *mc) static int meson_crypto_probe(struct platform_device *pdev) { struct meson_dev *mc; - int err, i; + int err; mc = devm_kzalloc(&pdev->dev, sizeof(*mc), GFP_KERNEL); if (!mc) @@ -237,19 +255,6 @@ static int meson_crypto_probe(struct platform_device *pdev) return err; } - for (i = 0; i < MAXFLOW; i++) { - mc->irqs[i] = platform_get_irq(pdev, i); - if (mc->irqs[i] < 0) - return mc->irqs[i]; - - err = devm_request_irq(&pdev->dev, mc->irqs[i], meson_irq_handler, 0, - "gxl-crypto", mc); - if (err < 0) { - dev_err(mc->dev, "Cannot request IRQ for flow %d\n", i); - return err; - } - } - err = clk_prepare_enable(mc->busclk); if (err != 0) { dev_err(&pdev->dev, "Cannot prepare_enable busclk\n"); @@ -273,7 +278,7 @@ static int meson_crypto_probe(struct platform_device *pdev) error_alg: meson_unregister_algs(mc); error_flow: - meson_free_chanlist(mc, MAXFLOW - 1); + meson_free_chanlist(mc, mc->flow_cnt - 1); clk_disable_unprepare(mc->busclk); return err; } @@ -288,7 +293,7 @@ static int meson_crypto_remove(struct platform_device *pdev) meson_unregister_algs(mc); - meson_free_chanlist(mc, MAXFLOW - 1); + meson_free_chanlist(mc, mc->flow_cnt - 1); clk_disable_unprepare(mc->busclk); return 0; diff --git a/drivers/crypto/amlogic/amlogic-gxl.h b/drivers/crypto/amlogic/amlogic-gxl.h index 8c0746a1d6d4..e5cc6e028fa8 100644 --- a/drivers/crypto/amlogic/amlogic-gxl.h +++ b/drivers/crypto/amlogic/amlogic-gxl.h @@ -22,8 +22,6 @@ #define MESON_OPMODE_ECB 0 #define MESON_OPMODE_CBC 1 -#define MAXFLOW 2 - #define MAXDESC 64 #define DESC_LAST BIT(18) @@ -62,6 +60,7 @@ struct meson_desc { * @keylen: keylen for this flow operation * @complete: completion for the current task on this flow * @status: set to 1 by interrupt if task is done + * @irq: IRQ number for amlogic-crypto * @t_phy: Physical address of task * @tl: pointer to the current ce_task for this flow * @stat_req: number of request done by this flow @@ -70,6 +69,7 @@ struct meson_flow { struct crypto_engine *engine; struct completion complete; int status; + int irq; unsigned int keylen; dma_addr_t t_phy; struct meson_desc *tl; @@ -85,7 +85,7 @@ struct meson_flow { * @dev: the platform device * @chanlist: array of all flow * @flow: flow to use in next request - * @irqs: IRQ numbers for amlogic-crypto + * @flow_cnt: flow count for amlogic-crypto * @dbgfs_dir: Debugfs dentry for statistic directory * @dbgfs_stats: Debugfs dentry for statistic counters */ @@ -95,7 +95,7 @@ struct meson_dev { struct device *dev; struct meson_flow *chanlist; atomic_t flow; - int irqs[MAXFLOW]; + int flow_cnt; #ifdef CONFIG_CRYPTO_DEV_AMLOGIC_GXL_DEBUG struct dentry *dbgfs_dir; #endif