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authorLinus Torvalds <torvalds@linux-foundation.org>2017-05-05 18:16:23 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-05-05 18:16:23 -0700
commitc6a677c6f37bb7abc85ba7e3465e82b9f7eb1d91 (patch)
tree9d0d4bb2e150837297cddc5be7f1b4950e9ab228 /drivers/staging/ccree/ssi_sram_mgr.h
parente87d51ac61f88ae44fe14b34abe08566032d726b (diff)
parent11270059e8d0b6f80801fac910c4ef751ca05c4c (diff)
Merge tag 'staging-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging/IIO updates from Greg KH: "Here is the big staging tree update for 4.12-rc1. It's a big one, adding about 350k new lines of crap^Wcode, mostly all in a big dump of media drivers from Intel. But there's other new drivers in here as well, yet-another-wifi driver, new IIO drivers, and a new crypto accelerator. We also deleted a bunch of stuff, mostly in patch cleanups, but also the Android ION code has shrunk a lot, and the Android low memory killer driver was finally deleted, much to the celebration of the -mm developers. All of these have been in linux-next with a few build issues that will show up when you merge to your tree" Merge conflicts in the new rtl8723bs driver (due to the wifi changes this merge window) handled as per linux-next, courtesy of Stephen Rothwell. * tag 'staging-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1182 commits) staging: fsl-mc/dpio: add cpu <--> LE conversion for dpaa2_fd staging: ks7010: remove line continuations in quoted strings staging: vt6656: use tabs instead of spaces staging: android: ion: Fix unnecessary initialization of static variable staging: media: atomisp: fix range checking on clk_num staging: media: atomisp: fix misspelled word in comment staging: media: atomisp: kmap() can't fail staging: atomisp: remove #ifdef for runtime PM functions staging: atomisp: satm include directory is gone atomisp: remove some more unused files atomisp: remove hmm_load/store/clear indirections atomisp: kill off mmgr_free atomisp: clean up the hmm init/cleanup indirections atomisp: handle allocation calls before init in the hmm layer staging: fsl-dpaa2/eth: Add maintainer for Ethernet driver staging: fsl-dpaa2/eth: Add TODO file staging: fsl-dpaa2/eth: Add trace points staging: fsl-dpaa2/eth: Add driver specific stats staging: fsl-dpaa2/eth: Add ethtool support staging: fsl-dpaa2/eth: Add Freescale DPAA2 Ethernet driver ...
Diffstat (limited to 'drivers/staging/ccree/ssi_sram_mgr.h')
-rw-r--r--drivers/staging/ccree/ssi_sram_mgr.h80
1 files changed, 80 insertions, 0 deletions
diff --git a/drivers/staging/ccree/ssi_sram_mgr.h b/drivers/staging/ccree/ssi_sram_mgr.h
new file mode 100644
index 000000000000..d71fbaf9ac44
--- /dev/null
+++ b/drivers/staging/ccree/ssi_sram_mgr.h
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2012-2017 ARM Limited or its affiliates.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __SSI_SRAM_MGR_H__
+#define __SSI_SRAM_MGR_H__
+
+
+#ifndef SSI_CC_SRAM_SIZE
+#define SSI_CC_SRAM_SIZE 4096
+#endif
+
+struct ssi_drvdata;
+
+/**
+ * Address (offset) within CC internal SRAM
+ */
+
+typedef uint64_t ssi_sram_addr_t;
+
+#define NULL_SRAM_ADDR ((ssi_sram_addr_t)-1)
+
+/*!
+ * Initializes SRAM pool.
+ * The first X bytes of SRAM are reserved for ROM usage, hence, pool
+ * starts right after X bytes.
+ *
+ * \param drvdata
+ *
+ * \return int Zero for success, negative value otherwise.
+ */
+int ssi_sram_mgr_init(struct ssi_drvdata *drvdata);
+
+/*!
+ * Uninits SRAM pool.
+ *
+ * \param drvdata
+ */
+void ssi_sram_mgr_fini(struct ssi_drvdata *drvdata);
+
+/*!
+ * Allocated buffer from SRAM pool.
+ * Note: Caller is responsible to free the LAST allocated buffer.
+ * This function does not taking care of any fragmentation may occur
+ * by the order of calls to alloc/free.
+ *
+ * \param drvdata
+ * \param size The requested bytes to allocate
+ */
+ssi_sram_addr_t ssi_sram_mgr_alloc(struct ssi_drvdata *drvdata, uint32_t size);
+
+/**
+ * ssi_sram_mgr_const2sram_desc() - Create const descriptors sequence to
+ * set values in given array into SRAM.
+ * Note: each const value can't exceed word size.
+ *
+ * @src: A pointer to array of words to set as consts.
+ * @dst: The target SRAM buffer to set into
+ * @nelements: The number of words in "src" array
+ * @seq: A pointer to the given IN/OUT descriptor sequence
+ * @seq_len: A pointer to the given IN/OUT sequence length
+ */
+void ssi_sram_mgr_const2sram_desc(
+ const uint32_t *src, ssi_sram_addr_t dst,
+ unsigned int nelement,
+ HwDesc_s *seq, unsigned int *seq_len);
+
+#endif /*__SSI_SRAM_MGR_H__*/