[PATCH] CRIS update: new subarchitecture v32
New CRIS sub architecture named v32.
From: Dave Jones <davej@redhat.com>
Fix swapped kmalloc args
Signed-off-by: Mikael Starvik <starvik@axis.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/include/asm-cris/arch-v32/cryptocop.h b/include/asm-cris/arch-v32/cryptocop.h
new file mode 100644
index 0000000..dfa1f66
--- /dev/null
+++ b/include/asm-cris/arch-v32/cryptocop.h
@@ -0,0 +1,272 @@
+/*
+ * The device /dev/cryptocop is accessible using this driver using
+ * CRYPTOCOP_MAJOR (254) and minor number 0.
+ */
+
+#ifndef CRYPTOCOP_H
+#define CRYPTOCOP_H
+
+#include <linux/uio.h>
+
+
+#define CRYPTOCOP_SESSION_ID_NONE (0)
+
+typedef unsigned long long int cryptocop_session_id;
+
+/* cryptocop ioctls */
+#define ETRAXCRYPTOCOP_IOCTYPE (250)
+
+#define CRYPTOCOP_IO_CREATE_SESSION _IOWR(ETRAXCRYPTOCOP_IOCTYPE, 1, struct strcop_session_op)
+#define CRYPTOCOP_IO_CLOSE_SESSION _IOW(ETRAXCRYPTOCOP_IOCTYPE, 2, struct strcop_session_op)
+#define CRYPTOCOP_IO_PROCESS_OP _IOWR(ETRAXCRYPTOCOP_IOCTYPE, 3, struct strcop_crypto_op)
+#define CRYPTOCOP_IO_MAXNR (3)
+
+typedef enum {
+ cryptocop_cipher_des = 0,
+ cryptocop_cipher_3des = 1,
+ cryptocop_cipher_aes = 2,
+ cryptocop_cipher_m2m = 3, /* mem2mem is essentially a NULL cipher with blocklength=1 */
+ cryptocop_cipher_none
+} cryptocop_cipher_type;
+
+typedef enum {
+ cryptocop_digest_sha1 = 0,
+ cryptocop_digest_md5 = 1,
+ cryptocop_digest_none
+} cryptocop_digest_type;
+
+typedef enum {
+ cryptocop_csum_le = 0,
+ cryptocop_csum_be = 1,
+ cryptocop_csum_none
+} cryptocop_csum_type;
+
+typedef enum {
+ cryptocop_cipher_mode_ecb = 0,
+ cryptocop_cipher_mode_cbc,
+ cryptocop_cipher_mode_none
+} cryptocop_cipher_mode;
+
+typedef enum {
+ cryptocop_3des_eee = 0,
+ cryptocop_3des_eed = 1,
+ cryptocop_3des_ede = 2,
+ cryptocop_3des_edd = 3,
+ cryptocop_3des_dee = 4,
+ cryptocop_3des_ded = 5,
+ cryptocop_3des_dde = 6,
+ cryptocop_3des_ddd = 7
+} cryptocop_3des_mode;
+
+/* Usermode accessible (ioctl) operations. */
+struct strcop_session_op{
+ cryptocop_session_id ses_id;
+
+ cryptocop_cipher_type cipher; /* AES, DES, 3DES, m2m, none */
+
+ cryptocop_cipher_mode cmode; /* ECB, CBC, none */
+ cryptocop_3des_mode des3_mode;
+
+ cryptocop_digest_type digest; /* MD5, SHA1, none */
+
+ cryptocop_csum_type csum; /* BE, LE, none */
+
+ unsigned char *key;
+ size_t keylen;
+};
+
+#define CRYPTOCOP_CSUM_LENGTH (2)
+#define CRYPTOCOP_MAX_DIGEST_LENGTH (20) /* SHA-1 20, MD5 16 */
+#define CRYPTOCOP_MAX_IV_LENGTH (16) /* (3)DES==8, AES == 16 */
+#define CRYPTOCOP_MAX_KEY_LENGTH (32)
+
+struct strcop_crypto_op{
+ cryptocop_session_id ses_id;
+
+ /* Indata. */
+ unsigned char *indata;
+ size_t inlen; /* Total indata length. */
+
+ /* Cipher configuration. */
+ unsigned char do_cipher:1;
+ unsigned char decrypt:1; /* 1 == decrypt, 0 == encrypt */
+ unsigned char cipher_explicit:1;
+ size_t cipher_start;
+ size_t cipher_len;
+ /* cipher_iv is used if do_cipher and cipher_explicit and the cipher
+ mode is CBC. The length is controlled by the type of cipher,
+ e.g. DES/3DES 8 octets and AES 16 octets. */
+ unsigned char cipher_iv[CRYPTOCOP_MAX_IV_LENGTH];
+ /* Outdata. */
+ unsigned char *cipher_outdata;
+ size_t cipher_outlen;
+
+ /* digest configuration. */
+ unsigned char do_digest:1;
+ size_t digest_start;
+ size_t digest_len;
+ /* Outdata. The actual length is determined by the type of the digest. */
+ unsigned char digest[CRYPTOCOP_MAX_DIGEST_LENGTH];
+
+ /* Checksum configuration. */
+ unsigned char do_csum:1;
+ size_t csum_start;
+ size_t csum_len;
+ /* Outdata. */
+ unsigned char csum[CRYPTOCOP_CSUM_LENGTH];
+};
+
+
+
+#ifdef __KERNEL__
+
+/********** The API to use from inside the kernel. ************/
+
+#include <asm/arch/hwregs/dma.h>
+
+typedef enum {
+ cryptocop_alg_csum = 0,
+ cryptocop_alg_mem2mem,
+ cryptocop_alg_md5,
+ cryptocop_alg_sha1,
+ cryptocop_alg_des,
+ cryptocop_alg_3des,
+ cryptocop_alg_aes,
+ cryptocop_no_alg,
+} cryptocop_algorithm;
+
+typedef u8 cryptocop_tfrm_id;
+
+
+struct cryptocop_operation;
+
+typedef void (cryptocop_callback)(struct cryptocop_operation*, void*);
+
+struct cryptocop_transform_init {
+ cryptocop_algorithm alg;
+ /* Keydata for ciphers. */
+ unsigned char key[CRYPTOCOP_MAX_KEY_LENGTH];
+ unsigned int keylen;
+ cryptocop_cipher_mode cipher_mode;
+ cryptocop_3des_mode tdes_mode;
+ cryptocop_csum_type csum_mode; /* cryptocop_csum_none is not allowed when alg==cryptocop_alg_csum */
+
+ cryptocop_tfrm_id tid; /* Locally unique in session; assigned by user, checked by driver. */
+ struct cryptocop_transform_init *next;
+};
+
+
+typedef enum {
+ cryptocop_source_dma = 0,
+ cryptocop_source_des,
+ cryptocop_source_3des,
+ cryptocop_source_aes,
+ cryptocop_source_md5,
+ cryptocop_source_sha1,
+ cryptocop_source_csum,
+ cryptocop_source_none,
+} cryptocop_source;
+
+
+struct cryptocop_desc_cfg {
+ cryptocop_tfrm_id tid;
+ cryptocop_source src;
+ unsigned int last:1; /* Last use of this transform in the operation. Will push outdata when encountered. */
+ struct cryptocop_desc_cfg *next;
+};
+
+struct cryptocop_desc {
+ size_t length;
+ struct cryptocop_desc_cfg *cfg;
+ struct cryptocop_desc *next;
+};
+
+
+/* Flags for cryptocop_tfrm_cfg */
+#define CRYPTOCOP_NO_FLAG (0x00)
+#define CRYPTOCOP_ENCRYPT (0x01)
+#define CRYPTOCOP_DECRYPT (0x02)
+#define CRYPTOCOP_EXPLICIT_IV (0x04)
+
+struct cryptocop_tfrm_cfg {
+ cryptocop_tfrm_id tid;
+
+ unsigned int flags; /* DECRYPT, ENCRYPT, EXPLICIT_IV */
+
+ /* CBC initialisation vector for cihers. */
+ u8 iv[CRYPTOCOP_MAX_IV_LENGTH];
+
+ /* The position in output where to write the transform output. The order
+ in which the driver writes the output is unspecified, hence if several
+ transforms write on the same positions in the output the result is
+ unspecified. */
+ size_t inject_ix;
+
+ struct cryptocop_tfrm_cfg *next;
+};
+
+
+
+struct cryptocop_dma_list_operation{
+ /* The consumer can provide DMA lists to send to the co-processor. 'use_dmalists' in
+ struct cryptocop_operation must be set for the driver to use them. outlist,
+ out_data_buf, inlist and in_data_buf must all be physical addresses since they will
+ be loaded to DMA . */
+ dma_descr_data *outlist; /* Out from memory to the co-processor. */
+ char *out_data_buf;
+ dma_descr_data *inlist; /* In from the co-processor to memory. */
+ char *in_data_buf;
+
+ cryptocop_3des_mode tdes_mode;
+ cryptocop_csum_type csum_mode;
+};
+
+
+struct cryptocop_tfrm_operation{
+ /* Operation configuration, if not 'use_dmalists' is set. */
+ struct cryptocop_tfrm_cfg *tfrm_cfg;
+ struct cryptocop_desc *desc;
+
+ struct iovec *indata;
+ size_t incount;
+ size_t inlen; /* Total inlength. */
+
+ struct iovec *outdata;
+ size_t outcount;
+ size_t outlen; /* Total outlength. */
+};
+
+
+struct cryptocop_operation {
+ cryptocop_callback *cb;
+ void *cb_data;
+
+ cryptocop_session_id sid;
+
+ /* The status of the operation when returned to consumer. */
+ int operation_status; /* 0, -EAGAIN */
+
+ /* Flags */
+ unsigned int use_dmalists:1; /* Use outlist and inlist instead of the desc/tfrm_cfg configuration. */
+ unsigned int in_interrupt:1; /* Set if inserting job from interrupt context. */
+ unsigned int fast_callback:1; /* Set if fast callback wanted, i.e. from interrupt context. */
+
+ union{
+ struct cryptocop_dma_list_operation list_op;
+ struct cryptocop_tfrm_operation tfrm_op;
+ };
+};
+
+
+int cryptocop_new_session(cryptocop_session_id *sid, struct cryptocop_transform_init *tinit, int alloc_flag);
+int cryptocop_free_session(cryptocop_session_id sid);
+
+int cryptocop_job_queue_insert_csum(struct cryptocop_operation *operation);
+
+int cryptocop_job_queue_insert_crypto(struct cryptocop_operation *operation);
+
+int cryptocop_job_queue_insert_user_job(struct cryptocop_operation *operation);
+
+#endif /* __KERNEL__ */
+
+#endif /* CRYPTOCOP_H */
