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From: Geert Uytterhoeven <geert+renesas@glider.be>
To: Gilad Ben-Yossef <gilad@benyossef.com>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	"David S . Miller" <davem@davemloft.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"Rafael J . Wysocki" <rafael@kernel.org>,
	linux-crypto@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Geert Uytterhoeven <geert+renesas@glider.be>
Subject: [PATCH v2 18/34] crypto: ccree - remove struct cc_sram_ctx
Date: Tue, 11 Feb 2020 19:19:12 +0100
Message-ID: <20200211181928.15178-19-geert+renesas@glider.be> (raw)
In-Reply-To: <20200211181928.15178-1-geert+renesas@glider.be>

The cc_sram_ctx structure contains only a single member, and only one
instance exists.  Simplify the code and reduce memory consumption by
moving this member to struct cc_drvdata.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
v2:
  - New.

 drivers/crypto/ccree/cc_driver.h   |  2 +-
 drivers/crypto/ccree/cc_sram_mgr.c | 27 +++++----------------------
 2 files changed, 6 insertions(+), 23 deletions(-)

diff --git a/drivers/crypto/ccree/cc_driver.h b/drivers/crypto/ccree/cc_driver.h
index 9e94a29d84ae61f1..7e483c22858245f9 100644
--- a/drivers/crypto/ccree/cc_driver.h
+++ b/drivers/crypto/ccree/cc_driver.h
@@ -146,7 +146,7 @@ struct cc_drvdata {
 	void *aead_handle;
 	void *request_mgr_handle;
 	void *fips_handle;
-	void *sram_mgr_handle;
+	u32 sram_free_offset;	/* offset to non-allocated area in SRAM */
 	void *debugfs;
 	struct clk *clk;
 	bool coherent;
diff --git a/drivers/crypto/ccree/cc_sram_mgr.c b/drivers/crypto/ccree/cc_sram_mgr.c
index d46aad7c8140acaa..38f36cbc05b3cf6f 100644
--- a/drivers/crypto/ccree/cc_sram_mgr.c
+++ b/drivers/crypto/ccree/cc_sram_mgr.c
@@ -4,14 +4,6 @@
 #include "cc_driver.h"
 #include "cc_sram_mgr.h"
 
-/**
- * struct cc_sram_ctx -Internal RAM context manager
- * @sram_free_offset:   the offset to the non-allocated area
- */
-struct cc_sram_ctx {
-	u32 sram_free_offset;
-};
-
 /**
  * cc_sram_mgr_init() - Initializes SRAM pool.
  *      The pool starts right at the beginning of SRAM.
@@ -21,7 +13,6 @@ struct cc_sram_ctx {
  */
 int cc_sram_mgr_init(struct cc_drvdata *drvdata)
 {
-	struct cc_sram_ctx *ctx;
 	u32 start = 0;
 	struct device *dev = drvdata_to_dev(drvdata);
 
@@ -34,14 +25,7 @@ int cc_sram_mgr_init(struct cc_drvdata *drvdata)
 		}
 	}
 
-	/* Allocate "this" context */
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
-
-	ctx->sram_free_offset = start;
-	drvdata->sram_mgr_handle = ctx;
-
+	drvdata->sram_free_offset = start;
 	return 0;
 }
 
@@ -53,7 +37,6 @@ int cc_sram_mgr_init(struct cc_drvdata *drvdata)
  */
 u32 cc_sram_alloc(struct cc_drvdata *drvdata, u32 size)
 {
-	struct cc_sram_ctx *smgr_ctx = drvdata->sram_mgr_handle;
 	struct device *dev = drvdata_to_dev(drvdata);
 	u32 p;
 
@@ -62,14 +45,14 @@ u32 cc_sram_alloc(struct cc_drvdata *drvdata, u32 size)
 			size);
 		return NULL_SRAM_ADDR;
 	}
-	if (size > (CC_CC_SRAM_SIZE - smgr_ctx->sram_free_offset)) {
+	if (size > (CC_CC_SRAM_SIZE - drvdata->sram_free_offset)) {
 		dev_err(dev, "Not enough space to allocate %u B (at offset %u)\n",
-			size, smgr_ctx->sram_free_offset);
+			size, drvdata->sram_free_offset);
 		return NULL_SRAM_ADDR;
 	}
 
-	p = smgr_ctx->sram_free_offset;
-	smgr_ctx->sram_free_offset += size;
+	p = drvdata->sram_free_offset;
+	drvdata->sram_free_offset += size;
 	dev_dbg(dev, "Allocated %u B @ %u\n", size, p);
 	return p;
 }
-- 
2.17.1


  parent reply index

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-11 18:18 [PATCH v2 00/34] crypto: ccree - miscellaneous fixes and improvements Geert Uytterhoeven
2020-02-11 18:18 ` [PATCH v2 01/34] debugfs: regset32: Add Runtime PM support Geert Uytterhoeven
2020-02-11 18:18 ` [PATCH v2 02/34] crypto: ccree - fix debugfs register access while suspended Geert Uytterhoeven
2020-02-11 18:18 ` [PATCH v2 03/34] crypto: ccree - fix retry handling in cc_send_sync_request() Geert Uytterhoeven
2020-02-11 18:18 ` [PATCH v2 04/34] crypto: ccree - remove unneeded casts Geert Uytterhoeven
2020-02-11 18:18 ` [PATCH v2 05/34] crypto: ccree - swap SHA384 and SHA512 larval hashes at build time Geert Uytterhoeven
2020-02-11 18:19 ` [PATCH v2 06/34] crypto: ccree - drop duplicated error message on SRAM exhaustion Geert Uytterhoeven
2020-02-11 18:19 ` [PATCH v2 07/34] crypto: ccree - remove empty cc_sram_mgr_fini() Geert Uytterhoeven
2020-02-11 18:19 ` [PATCH v2 08/34] crypto: ccree - clean up clock handling Geert Uytterhoeven
2020-02-11 18:19 ` [PATCH v2 09/34] crypto: ccree - make mlli_params.mlli_virt_addr void * Geert Uytterhoeven
2020-02-11 18:19 ` [PATCH v2 10/34] crypto: ccree - use existing helpers to split 64-bit addresses Geert Uytterhoeven
2020-02-11 18:19 ` [PATCH v2 11/34] crypto: ccree - defer larval_digest_addr init until needed Geert Uytterhoeven
2020-02-11 18:19 ` [PATCH v2 12/34] crypto: ccree - remove bogus paragraph about freeing SRAM Geert Uytterhoeven
2020-02-11 18:19 ` [PATCH v2 13/34] crypto: ccree - use u32 for SRAM addresses Geert Uytterhoeven
2020-02-11 18:19 ` [PATCH v2 14/34] crypto: ccree - simplify Runtime PM handling Geert Uytterhoeven
2020-02-11 18:19 ` [PATCH v2 15/34] crypto: ccree - use of_device_get_match_data() Geert Uytterhoeven
2020-02-11 18:19 ` [PATCH v2 16/34] crypto: ccree - remove cc_pm_is_dev_suspended() wrapper Geert Uytterhoeven
2020-02-11 18:19 ` [PATCH v2 17/34] crypto: ccree - make cc_pm_{suspend,resume}() static Geert Uytterhoeven
2020-02-11 18:19 ` Geert Uytterhoeven [this message]
2020-02-11 18:19 ` [PATCH v2 19/34] crypto: ccree - remove struct cc_debugfs_ctx Geert Uytterhoeven
2020-02-11 18:19 ` [PATCH v2 20/34] crypto: ccree - remove struct buff_mgr_handle Geert Uytterhoeven
2020-02-11 18:19 ` [PATCH v2 21/34] crypto: ccree - remove struct cc_cipher_handle Geert Uytterhoeven
2020-02-11 18:19 ` [PATCH v2 22/34] crypto: ccree - extract cc_init_copy_sram() Geert Uytterhoeven
2020-02-11 18:19 ` [PATCH v2 23/34] crypto: ccree - remove bogus kerneldoc markers Geert Uytterhoeven
2020-02-11 18:44   ` Sergei Shtylyov
2020-02-11 18:19 ` [PATCH v2 24/34] crypto: ccree - improve kerneldoc in cc_hw_queue_defs.h Geert Uytterhoeven
2020-02-11 18:19 ` [PATCH v2 25/34] crypto: ccree - improve kerneldoc in cc_buffer_mgr.c Geert Uytterhoeven
2020-02-11 18:19 ` [PATCH v2 26/34] crypto: ccree - improve kerneldoc in cc_hash.[ch] Geert Uytterhoeven
2020-02-11 18:19 ` [PATCH v2 27/34] crypto: ccree - improve kerneldoc in cc_request_mgr.[ch] Geert Uytterhoeven
2020-02-11 18:19 ` [PATCH v2 28/34] crypto: ccree - improve kerneldoc in cc_sram_mgr.[ch] Geert Uytterhoeven
2020-02-11 18:19 ` [PATCH v2 29/34] crypto: ccree - spelling s/Crytpcell/Cryptocell/ Geert Uytterhoeven
2020-02-11 18:19 ` [PATCH v2 30/34] crypto: ccree - grammar s/not room/no room/ Geert Uytterhoeven
2020-02-11 18:19 ` [PATCH v2 31/34] crypto: ccree - use existing dev helper in init_cc_resources() Geert Uytterhoeven
2020-02-11 18:19 ` [PATCH v2 32/34] crypto: ccree - use devm_k[mz]alloc() for AEAD data Geert Uytterhoeven
2020-02-11 18:19 ` [PATCH v2 33/34] crypto: ccree - use devm_k[mz]alloc() for cipher data Geert Uytterhoeven
2020-02-11 18:19 ` [PATCH v2 34/34] crypto: ccree - use devm_kzalloc() for hash data Geert Uytterhoeven
     [not found] ` <CAOtvUMfs84VXAecVNShoEg-CU6APjyiVTUBkogpFq_c3fbaX+Q@mail.gmail.com>
2020-02-13  7:47   ` [PATCH v2 00/34] crypto: ccree - miscellaneous fixes and improvements Geert Uytterhoeven
2020-02-19 15:41     ` Gilad Ben-Yossef
2020-02-20 12:29 ` Gilad Ben-Yossef
2020-02-22  1:42 ` Herbert Xu

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