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Commit 956ee21a authored by Gary R Hook's avatar Gary R Hook Committed by Herbert Xu
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crypto: ccp - Refactoring: symbol cleanup 

Form and use of the local storage block in the CCP is
particular to the device version. Much of the code that
accesses the storage block can treat it as a virtual
resource, and will under go some renaming. Device-specific
access to the memory will be moved into device file.
Service functions will be added to the actions
structure.
Signed-off-by: default avatarGary R Hook <gary.hook@amd.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent a43eb985
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Showing with 175 additions and 173 deletions
drivers/crypto/ccp/ccp-dev-v3.c
View file @ 956ee21a
......@@ -100,10 +100,10 @@ static int ccp_perform_aes(struct ccp_op *op)
| (op->u.aes.type << REQ1_AES_TYPE_SHIFT)
| (op->u.aes.mode << REQ1_AES_MODE_SHIFT)
| (op->u.aes.action << REQ1_AES_ACTION_SHIFT)
| (op->ksb_key << REQ1_KEY_KSB_SHIFT);
| (op->sb_key << REQ1_KEY_KSB_SHIFT);
cr[1] = op->src.u.dma.length - 1;
cr[2] = ccp_addr_lo(&op->src.u.dma);
cr[3] = (op->ksb_ctx << REQ4_KSB_SHIFT)
cr[3] = (op->sb_ctx << REQ4_KSB_SHIFT)
| (CCP_MEMTYPE_SYSTEM << REQ4_MEMTYPE_SHIFT)
| ccp_addr_hi(&op->src.u.dma);
cr[4] = ccp_addr_lo(&op->dst.u.dma);
......@@ -130,10 +130,10 @@ static int ccp_perform_xts_aes(struct ccp_op *op)
cr[0] = (CCP_ENGINE_XTS_AES_128 << REQ1_ENGINE_SHIFT)
| (op->u.xts.action << REQ1_AES_ACTION_SHIFT)
| (op->u.xts.unit_size << REQ1_XTS_AES_SIZE_SHIFT)
| (op->ksb_key << REQ1_KEY_KSB_SHIFT);
| (op->sb_key << REQ1_KEY_KSB_SHIFT);
cr[1] = op->src.u.dma.length - 1;
cr[2] = ccp_addr_lo(&op->src.u.dma);
cr[3] = (op->ksb_ctx << REQ4_KSB_SHIFT)
cr[3] = (op->sb_ctx << REQ4_KSB_SHIFT)
| (CCP_MEMTYPE_SYSTEM << REQ4_MEMTYPE_SHIFT)
| ccp_addr_hi(&op->src.u.dma);
cr[4] = ccp_addr_lo(&op->dst.u.dma);
......@@ -159,7 +159,7 @@ static int ccp_perform_sha(struct ccp_op *op)
| REQ1_INIT;
cr[1] = op->src.u.dma.length - 1;
cr[2] = ccp_addr_lo(&op->src.u.dma);
cr[3] = (op->ksb_ctx << REQ4_KSB_SHIFT)
cr[3] = (op->sb_ctx << REQ4_KSB_SHIFT)
| (CCP_MEMTYPE_SYSTEM << REQ4_MEMTYPE_SHIFT)
| ccp_addr_hi(&op->src.u.dma);
......@@ -182,11 +182,11 @@ static int ccp_perform_rsa(struct ccp_op *op)
/* Fill out the register contents for REQ1 through REQ6 */
cr[0] = (CCP_ENGINE_RSA << REQ1_ENGINE_SHIFT)
| (op->u.rsa.mod_size << REQ1_RSA_MOD_SIZE_SHIFT)
| (op->ksb_key << REQ1_KEY_KSB_SHIFT)
| (op->sb_key << REQ1_KEY_KSB_SHIFT)
| REQ1_EOM;
cr[1] = op->u.rsa.input_len - 1;
cr[2] = ccp_addr_lo(&op->src.u.dma);
cr[3] = (op->ksb_ctx << REQ4_KSB_SHIFT)
cr[3] = (op->sb_ctx << REQ4_KSB_SHIFT)
| (CCP_MEMTYPE_SYSTEM << REQ4_MEMTYPE_SHIFT)
| ccp_addr_hi(&op->src.u.dma);
cr[4] = ccp_addr_lo(&op->dst.u.dma);
......@@ -216,10 +216,10 @@ static int ccp_perform_passthru(struct ccp_op *op)
| ccp_addr_hi(&op->src.u.dma);
if (op->u.passthru.bit_mod != CCP_PASSTHRU_BITWISE_NOOP)
cr[3] |= (op->ksb_key << REQ4_KSB_SHIFT);
cr[3] |= (op->sb_key << REQ4_KSB_SHIFT);
} else {
cr[2] = op->src.u.ksb * CCP_KSB_BYTES;
cr[3] = (CCP_MEMTYPE_KSB << REQ4_MEMTYPE_SHIFT);
cr[2] = op->src.u.sb * CCP_SB_BYTES;
cr[3] = (CCP_MEMTYPE_SB << REQ4_MEMTYPE_SHIFT);
}
if (op->dst.type == CCP_MEMTYPE_SYSTEM) {
......@@ -227,8 +227,8 @@ static int ccp_perform_passthru(struct ccp_op *op)
cr[5] = (CCP_MEMTYPE_SYSTEM << REQ6_MEMTYPE_SHIFT)
| ccp_addr_hi(&op->dst.u.dma);
} else {
cr[4] = op->dst.u.ksb * CCP_KSB_BYTES;
cr[5] = (CCP_MEMTYPE_KSB << REQ6_MEMTYPE_SHIFT);
cr[4] = op->dst.u.sb * CCP_SB_BYTES;
cr[5] = (CCP_MEMTYPE_SB << REQ6_MEMTYPE_SHIFT);
}
if (op->eom)
......@@ -322,9 +322,9 @@ static int ccp_init(struct ccp_device *ccp)
cmd_q->dma_pool = dma_pool;
/* Reserve 2 KSB regions for the queue */
cmd_q->ksb_key = KSB_START + ccp->ksb_start++;
cmd_q->ksb_ctx = KSB_START + ccp->ksb_start++;
ccp->ksb_count -= 2;
cmd_q->sb_key = KSB_START + ccp->sb_start++;
cmd_q->sb_ctx = KSB_START + ccp->sb_start++;
ccp->sb_count -= 2;
/* Preset some register values and masks that are queue
* number dependent
......@@ -376,7 +376,7 @@ static int ccp_init(struct ccp_device *ccp)
}
/* Initialize the queues used to wait for KSB space and suspend */
init_waitqueue_head(&ccp->ksb_queue);
init_waitqueue_head(&ccp->sb_queue);
init_waitqueue_head(&ccp->suspend_queue);
/* Create a kthread for each queue */
......
drivers/crypto/ccp/ccp-dev.c
View file @ 956ee21a
......@@ -4,6 +4,7 @@
* Copyright (C) 2013,2016 Advanced Micro Devices, Inc.
*
* Author: Tom Lendacky <thomas.lendacky@amd.com>
* Author: Gary R Hook <gary.hook@amd.com>
*
* 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
......@@ -397,9 +398,9 @@ struct ccp_device *ccp_alloc_struct(struct device *dev)
spin_lock_init(&ccp->cmd_lock);
mutex_init(&ccp->req_mutex);
mutex_init(&ccp->ksb_mutex);
ccp->ksb_count = KSB_COUNT;
ccp->ksb_start = 0;
mutex_init(&ccp->sb_mutex);
ccp->sb_count = KSB_COUNT;
ccp->sb_start = 0;
ccp->ord = ccp_increment_unit_ordinal();
snprintf(ccp->name, MAX_CCP_NAME_LEN, "ccp-%u", ccp->ord);
......
drivers/crypto/ccp/ccp-dev.h
View file @ 956ee21a
......@@ -111,8 +111,7 @@
#define KSB_START 77
#define KSB_END 127
#define KSB_COUNT (KSB_END - KSB_START + 1)
#define CCP_KSB_BITS 256
#define CCP_KSB_BYTES 32
#define CCP_SB_BITS 256
#define CCP_JOBID_MASK 0x0000003f
......@@ -121,19 +120,19 @@
#define CCP_REVERSE_BUF_SIZE 64
#define CCP_AES_KEY_KSB_COUNT 1
#define CCP_AES_CTX_KSB_COUNT 1
#define CCP_AES_KEY_SB_COUNT 1
#define CCP_AES_CTX_SB_COUNT 1
#define CCP_XTS_AES_KEY_KSB_COUNT 1
#define CCP_XTS_AES_CTX_KSB_COUNT 1
#define CCP_XTS_AES_KEY_SB_COUNT 1
#define CCP_XTS_AES_CTX_SB_COUNT 1
#define CCP_SHA_KSB_COUNT 1
#define CCP_SHA_SB_COUNT 1
#define CCP_RSA_MAX_WIDTH 4096
#define CCP_PASSTHRU_BLOCKSIZE 256
#define CCP_PASSTHRU_MASKSIZE 32
#define CCP_PASSTHRU_KSB_COUNT 1
#define CCP_PASSTHRU_SB_COUNT 1
#define CCP_ECC_MODULUS_BYTES 48 /* 384-bits */
#define CCP_ECC_MAX_OPERANDS 6
......@@ -145,6 +144,8 @@
#define CCP_ECC_RESULT_OFFSET 60
#define CCP_ECC_RESULT_SUCCESS 0x0001
#define CCP_SB_BYTES 32
struct ccp_op;
/* Structure for computation functions that are device-specific */
......@@ -215,9 +216,9 @@ struct ccp_cmd_queue {
/* Queue dma pool */
struct dma_pool *dma_pool;
/* Queue reserved KSB regions */
u32 ksb_key;
u32 ksb_ctx;
/* Per-queue reserved storage block(s) */
u32 sb_key;
u32 sb_ctx;
/* Queue processing thread */
struct task_struct *kthread;
......@@ -313,12 +314,12 @@ struct ccp_device {
* to avoid allocation contention. This will reserve at most 10 KSB
* entries, leaving 40 KSB entries available for dynamic allocation.
*/
struct mutex ksb_mutex ____cacheline_aligned;
DECLARE_BITMAP(ksb, KSB_COUNT);
wait_queue_head_t ksb_queue;
unsigned int ksb_avail;
unsigned int ksb_count;
u32 ksb_start;
struct mutex sb_mutex ____cacheline_aligned;
DECLARE_BITMAP(sb, KSB_COUNT);
wait_queue_head_t sb_queue;
unsigned int sb_avail;
unsigned int sb_count;
u32 sb_start;
/* Suspend support */
unsigned int suspending;
......@@ -330,7 +331,7 @@ struct ccp_device {
enum ccp_memtype {
CCP_MEMTYPE_SYSTEM = 0,
CCP_MEMTYPE_KSB,
CCP_MEMTYPE_SB,
CCP_MEMTYPE_LOCAL,
CCP_MEMTYPE__LAST,
};
......@@ -374,7 +375,7 @@ struct ccp_mem {
enum ccp_memtype type;
union {
struct ccp_dma_info dma;
u32 ksb;
u32 sb;
} u;
};
......@@ -414,8 +415,8 @@ struct ccp_op {
u32 jobid;
u32 ioc;
u32 soc;
u32 ksb_key;
u32 ksb_ctx;
u32 sb_key;
u32 sb_ctx;
u32 init;
u32 eom;
......
drivers/crypto/ccp/ccp-ops.c
View file @ 956ee21a
......@@ -46,25 +46,25 @@ static u32 ccp_alloc_ksb(struct ccp_device *ccp, unsigned int count)
int start;
for (;;) {
mutex_lock(&ccp->ksb_mutex);
mutex_lock(&ccp->sb_mutex);
start = (u32)bitmap_find_next_zero_area(ccp->ksb,
ccp->ksb_count,
ccp->ksb_start,
start = (u32)bitmap_find_next_zero_area(ccp->sb,
ccp->sb_count,
ccp->sb_start,
count, 0);
if (start <= ccp->ksb_count) {
bitmap_set(ccp->ksb, start, count);
if (start <= ccp->sb_count) {
bitmap_set(ccp->sb, start, count);
mutex_unlock(&ccp->ksb_mutex);
mutex_unlock(&ccp->sb_mutex);
break;
}
ccp->ksb_avail = 0;
ccp->sb_avail = 0;
mutex_unlock(&ccp->ksb_mutex);
mutex_unlock(&ccp->sb_mutex);
/* Wait for KSB entries to become available */
if (wait_event_interruptible(ccp->ksb_queue, ccp->ksb_avail))
if (wait_event_interruptible(ccp->sb_queue, ccp->sb_avail))
return 0;
}
......@@ -77,15 +77,15 @@ static void ccp_free_ksb(struct ccp_device *ccp, unsigned int start,
if (!start)
return;
mutex_lock(&ccp->ksb_mutex);
mutex_lock(&ccp->sb_mutex);
bitmap_clear(ccp->ksb, start - KSB_START, count);
bitmap_clear(ccp->sb, start - KSB_START, count);
ccp->ksb_avail = 1;
ccp->sb_avail = 1;
mutex_unlock(&ccp->ksb_mutex);
mutex_unlock(&ccp->sb_mutex);
wake_up_interruptible_all(&ccp->ksb_queue);
wake_up_interruptible_all(&ccp->sb_queue);
}
static u32 ccp_gen_jobid(struct ccp_device *ccp)
......@@ -232,7 +232,7 @@ static int ccp_reverse_set_dm_area(struct ccp_dm_workarea *wa,
unsigned int len, unsigned int se_len,
bool sign_extend)
{
unsigned int nbytes, sg_offset, dm_offset, ksb_len, i;
unsigned int nbytes, sg_offset, dm_offset, sb_len, i;
u8 buffer[CCP_REVERSE_BUF_SIZE];
if (WARN_ON(se_len > sizeof(buffer)))
......@@ -242,21 +242,21 @@ static int ccp_reverse_set_dm_area(struct ccp_dm_workarea *wa,
dm_offset = 0;
nbytes = len;
while (nbytes) {
ksb_len = min_t(unsigned int, nbytes, se_len);
sg_offset -= ksb_len;
sb_len = min_t(unsigned int, nbytes, se_len);
sg_offset -= sb_len;
scatterwalk_map_and_copy(buffer, sg, sg_offset, ksb_len, 0);
for (i = 0; i < ksb_len; i++)
wa->address[dm_offset + i] = buffer[ksb_len - i - 1];
scatterwalk_map_and_copy(buffer, sg, sg_offset, sb_len, 0);
for (i = 0; i < sb_len; i++)
wa->address[dm_offset + i] = buffer[sb_len - i - 1];
dm_offset += ksb_len;
nbytes -= ksb_len;
dm_offset += sb_len;
nbytes -= sb_len;
if ((ksb_len != se_len) && sign_extend) {
if ((sb_len != se_len) && sign_extend) {
/* Must sign-extend to nearest sign-extend length */
if (wa->address[dm_offset - 1] & 0x80)
memset(wa->address + dm_offset, 0xff,
se_len - ksb_len);
se_len - sb_len);
}
}
......@@ -267,22 +267,22 @@ static void ccp_reverse_get_dm_area(struct ccp_dm_workarea *wa,
struct scatterlist *sg,
unsigned int len)
{
unsigned int nbytes, sg_offset, dm_offset, ksb_len, i;
unsigned int nbytes, sg_offset, dm_offset, sb_len, i;
u8 buffer[CCP_REVERSE_BUF_SIZE];
sg_offset = 0;
dm_offset = len;
nbytes = len;
while (nbytes) {
ksb_len = min_t(unsigned int, nbytes, sizeof(buffer));
dm_offset -= ksb_len;
sb_len = min_t(unsigned int, nbytes, sizeof(buffer));
dm_offset -= sb_len;
for (i = 0; i < ksb_len; i++)
buffer[ksb_len - i - 1] = wa->address[dm_offset + i];
scatterwalk_map_and_copy(buffer, sg, sg_offset, ksb_len, 1);
for (i = 0; i < sb_len; i++)
buffer[sb_len - i - 1] = wa->address[dm_offset + i];
scatterwalk_map_and_copy(buffer, sg, sg_offset, sb_len, 1);
sg_offset += ksb_len;
nbytes -= ksb_len;
sg_offset += sb_len;
nbytes -= sb_len;
}
}
......@@ -450,8 +450,8 @@ static void ccp_process_data(struct ccp_data *src, struct ccp_data *dst,
}
}
static int ccp_copy_to_from_ksb(struct ccp_cmd_queue *cmd_q,
struct ccp_dm_workarea *wa, u32 jobid, u32 ksb,
static int ccp_copy_to_from_sb(struct ccp_cmd_queue *cmd_q,
struct ccp_dm_workarea *wa, u32 jobid, u32 sb,
u32 byte_swap, bool from)
{
struct ccp_op op;
......@@ -464,8 +464,8 @@ static int ccp_copy_to_from_ksb(struct ccp_cmd_queue *cmd_q,
if (from) {
op.soc = 1;
op.src.type = CCP_MEMTYPE_KSB;
op.src.u.ksb = ksb;
op.src.type = CCP_MEMTYPE_SB;
op.src.u.sb = sb;
op.dst.type = CCP_MEMTYPE_SYSTEM;
op.dst.u.dma.address = wa->dma.address;
op.dst.u.dma.length = wa->length;
......@@ -473,8 +473,8 @@ static int ccp_copy_to_from_ksb(struct ccp_cmd_queue *cmd_q,
op.src.type = CCP_MEMTYPE_SYSTEM;
op.src.u.dma.address = wa->dma.address;
op.src.u.dma.length = wa->length;
op.dst.type = CCP_MEMTYPE_KSB;
op.dst.u.ksb = ksb;
op.dst.type = CCP_MEMTYPE_SB;
op.dst.u.sb = sb;
}
op.u.passthru.byte_swap = byte_swap;
......@@ -482,18 +482,18 @@ static int ccp_copy_to_from_ksb(struct ccp_cmd_queue *cmd_q,
return cmd_q->ccp->vdata->perform->passthru(&op);
}
static int ccp_copy_to_ksb(struct ccp_cmd_queue *cmd_q,
struct ccp_dm_workarea *wa, u32 jobid, u32 ksb,
static int ccp_copy_to_sb(struct ccp_cmd_queue *cmd_q,
struct ccp_dm_workarea *wa, u32 jobid, u32 sb,
u32 byte_swap)
{
return ccp_copy_to_from_ksb(cmd_q, wa, jobid, ksb, byte_swap, false);
return ccp_copy_to_from_sb(cmd_q, wa, jobid, sb, byte_swap, false);
}
static int ccp_copy_from_ksb(struct ccp_cmd_queue *cmd_q,
struct ccp_dm_workarea *wa, u32 jobid, u32 ksb,
static int ccp_copy_from_sb(struct ccp_cmd_queue *cmd_q,
struct ccp_dm_workarea *wa, u32 jobid, u32 sb,
u32 byte_swap)
{
return ccp_copy_to_from_ksb(cmd_q, wa, jobid, ksb, byte_swap, true);
return ccp_copy_to_from_sb(cmd_q, wa, jobid, sb, byte_swap, true);
}
static int ccp_run_aes_cmac_cmd(struct ccp_cmd_queue *cmd_q,
......@@ -528,53 +528,53 @@ static int ccp_run_aes_cmac_cmd(struct ccp_cmd_queue *cmd_q,
return -EINVAL;
}
BUILD_BUG_ON(CCP_AES_KEY_KSB_COUNT != 1);
BUILD_BUG_ON(CCP_AES_CTX_KSB_COUNT != 1);
BUILD_BUG_ON(CCP_AES_KEY_SB_COUNT != 1);
BUILD_BUG_ON(CCP_AES_CTX_SB_COUNT != 1);
ret = -EIO;
memset(&op, 0, sizeof(op));
op.cmd_q = cmd_q;
op.jobid = ccp_gen_jobid(cmd_q->ccp);
op.ksb_key = cmd_q->ksb_key;
op.ksb_ctx = cmd_q->ksb_ctx;
op.sb_key = cmd_q->sb_key;
op.sb_ctx = cmd_q->sb_ctx;
op.init = 1;
op.u.aes.type = aes->type;
op.u.aes.mode = aes->mode;
op.u.aes.action = aes->action;
/* All supported key sizes fit in a single (32-byte) KSB entry
/* All supported key sizes fit in a single (32-byte) SB entry
* and must be in little endian format. Use the 256-bit byte
* swap passthru option to convert from big endian to little
* endian.
*/
ret = ccp_init_dm_workarea(&key, cmd_q,
CCP_AES_KEY_KSB_COUNT * CCP_KSB_BYTES,
CCP_AES_KEY_SB_COUNT * CCP_SB_BYTES,
DMA_TO_DEVICE);
if (ret)
return ret;
dm_offset = CCP_KSB_BYTES - aes->key_len;
dm_offset = CCP_SB_BYTES - aes->key_len;
ccp_set_dm_area(&key, dm_offset, aes->key, 0, aes->key_len);
ret = ccp_copy_to_ksb(cmd_q, &key, op.jobid, op.ksb_key,
ret = ccp_copy_to_sb(cmd_q, &key, op.jobid, op.sb_key,
CCP_PASSTHRU_BYTESWAP_256BIT);
if (ret) {
cmd->engine_error = cmd_q->cmd_error;
goto e_key;
}
/* The AES context fits in a single (32-byte) KSB entry and
/* The AES context fits in a single (32-byte) SB entry and
* must be in little endian format. Use the 256-bit byte swap
* passthru option to convert from big endian to little endian.
*/
ret = ccp_init_dm_workarea(&ctx, cmd_q,
CCP_AES_CTX_KSB_COUNT * CCP_KSB_BYTES,
CCP_AES_CTX_SB_COUNT * CCP_SB_BYTES,
DMA_BIDIRECTIONAL);
if (ret)
goto e_key;
dm_offset = CCP_KSB_BYTES - AES_BLOCK_SIZE;
dm_offset = CCP_SB_BYTES - AES_BLOCK_SIZE;
ccp_set_dm_area(&ctx, dm_offset, aes->iv, 0, aes->iv_len);
ret = ccp_copy_to_ksb(cmd_q, &ctx, op.jobid, op.ksb_ctx,
ret = ccp_copy_to_sb(cmd_q, &ctx, op.jobid, op.sb_ctx,
CCP_PASSTHRU_BYTESWAP_256BIT);
if (ret) {
cmd->engine_error = cmd_q->cmd_error;
......@@ -593,8 +593,8 @@ static int ccp_run_aes_cmac_cmd(struct ccp_cmd_queue *cmd_q,
op.eom = 1;
/* Push the K1/K2 key to the CCP now */
ret = ccp_copy_from_ksb(cmd_q, &ctx, op.jobid,
op.ksb_ctx,
ret = ccp_copy_from_sb(cmd_q, &ctx, op.jobid,
op.sb_ctx,
CCP_PASSTHRU_BYTESWAP_256BIT);
if (ret) {
cmd->engine_error = cmd_q->cmd_error;
......@@ -603,7 +603,7 @@ static int ccp_run_aes_cmac_cmd(struct ccp_cmd_queue *cmd_q,
ccp_set_dm_area(&ctx, 0, aes->cmac_key, 0,
aes->cmac_key_len);
ret = ccp_copy_to_ksb(cmd_q, &ctx, op.jobid, op.ksb_ctx,
ret = ccp_copy_to_sb(cmd_q, &ctx, op.jobid, op.sb_ctx,
CCP_PASSTHRU_BYTESWAP_256BIT);
if (ret) {
cmd->engine_error = cmd_q->cmd_error;
......@@ -623,7 +623,7 @@ static int ccp_run_aes_cmac_cmd(struct ccp_cmd_queue *cmd_q,
/* Retrieve the AES context - convert from LE to BE using
* 32-byte (256-bit) byteswapping
*/
ret = ccp_copy_from_ksb(cmd_q, &ctx, op.jobid, op.ksb_ctx,
ret = ccp_copy_from_sb(cmd_q, &ctx, op.jobid, op.sb_ctx,
CCP_PASSTHRU_BYTESWAP_256BIT);
if (ret) {
cmd->engine_error = cmd_q->cmd_error;
......@@ -631,7 +631,7 @@ static int ccp_run_aes_cmac_cmd(struct ccp_cmd_queue *cmd_q,
}
/* ...but we only need AES_BLOCK_SIZE bytes */
dm_offset = CCP_KSB_BYTES - AES_BLOCK_SIZE;
dm_offset = CCP_SB_BYTES - AES_BLOCK_SIZE;
ccp_get_dm_area(&ctx, dm_offset, aes->iv, 0, aes->iv_len);
e_src:
......@@ -681,55 +681,55 @@ static int ccp_run_aes_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
return -EINVAL;
}
BUILD_BUG_ON(CCP_AES_KEY_KSB_COUNT != 1);
BUILD_BUG_ON(CCP_AES_CTX_KSB_COUNT != 1);
BUILD_BUG_ON(CCP_AES_KEY_SB_COUNT != 1);
BUILD_BUG_ON(CCP_AES_CTX_SB_COUNT != 1);
ret = -EIO;
memset(&op, 0, sizeof(op));
op.cmd_q = cmd_q;
op.jobid = ccp_gen_jobid(cmd_q->ccp);
op.ksb_key = cmd_q->ksb_key;
op.ksb_ctx = cmd_q->ksb_ctx;
op.sb_key = cmd_q->sb_key;
op.sb_ctx = cmd_q->sb_ctx;
op.init = (aes->mode == CCP_AES_MODE_ECB) ? 0 : 1;
op.u.aes.type = aes->type;
op.u.aes.mode = aes->mode;
op.u.aes.action = aes->action;
/* All supported key sizes fit in a single (32-byte) KSB entry
/* All supported key sizes fit in a single (32-byte) SB entry
* and must be in little endian format. Use the 256-bit byte
* swap passthru option to convert from big endian to little
* endian.
*/
ret = ccp_init_dm_workarea(&key, cmd_q,
CCP_AES_KEY_KSB_COUNT * CCP_KSB_BYTES,
CCP_AES_KEY_SB_COUNT * CCP_SB_BYTES,
DMA_TO_DEVICE);
if (ret)
return ret;
dm_offset = CCP_KSB_BYTES - aes->key_len;
dm_offset = CCP_SB_BYTES - aes->key_len;
ccp_set_dm_area(&key, dm_offset, aes->key, 0, aes->key_len);
ret = ccp_copy_to_ksb(cmd_q, &key, op.jobid, op.ksb_key,
ret = ccp_copy_to_sb(cmd_q, &key, op.jobid, op.sb_key,
CCP_PASSTHRU_BYTESWAP_256BIT);
if (ret) {
cmd->engine_error = cmd_q->cmd_error;
goto e_key;
}
/* The AES context fits in a single (32-byte) KSB entry and
/* The AES context fits in a single (32-byte) SB entry and
* must be in little endian format. Use the 256-bit byte swap
* passthru option to convert from big endian to little endian.
*/
ret = ccp_init_dm_workarea(&ctx, cmd_q,
CCP_AES_CTX_KSB_COUNT * CCP_KSB_BYTES,
CCP_AES_CTX_SB_COUNT * CCP_SB_BYTES,
DMA_BIDIRECTIONAL);
if (ret)
goto e_key;
if (aes->mode != CCP_AES_MODE_ECB) {
/* Load the AES context - conver to LE */
dm_offset = CCP_KSB_BYTES - AES_BLOCK_SIZE;
dm_offset = CCP_SB_BYTES - AES_BLOCK_SIZE;
ccp_set_dm_area(&ctx, dm_offset, aes->iv, 0, aes->iv_len);
ret = ccp_copy_to_ksb(cmd_q, &ctx, op.jobid, op.ksb_ctx,
ret = ccp_copy_to_sb(cmd_q, &ctx, op.jobid, op.sb_ctx,
CCP_PASSTHRU_BYTESWAP_256BIT);
if (ret) {
cmd->engine_error = cmd_q->cmd_error;
......@@ -786,7 +786,7 @@ static int ccp_run_aes_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
/* Retrieve the AES context - convert from LE to BE using
* 32-byte (256-bit) byteswapping
*/
ret = ccp_copy_from_ksb(cmd_q, &ctx, op.jobid, op.ksb_ctx,
ret = ccp_copy_from_sb(cmd_q, &ctx, op.jobid, op.sb_ctx,
CCP_PASSTHRU_BYTESWAP_256BIT);
if (ret) {
cmd->engine_error = cmd_q->cmd_error;
......@@ -794,7 +794,7 @@ static int ccp_run_aes_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
}
/* ...but we only need AES_BLOCK_SIZE bytes */
dm_offset = CCP_KSB_BYTES - AES_BLOCK_SIZE;
dm_offset = CCP_SB_BYTES - AES_BLOCK_SIZE;
ccp_get_dm_area(&ctx, dm_offset, aes->iv, 0, aes->iv_len);
}
......@@ -858,52 +858,52 @@ static int ccp_run_xts_aes_cmd(struct ccp_cmd_queue *cmd_q,
if (!xts->key || !xts->iv || !xts->src || !xts->dst)
return -EINVAL;
BUILD_BUG_ON(CCP_XTS_AES_KEY_KSB_COUNT != 1);
BUILD_BUG_ON(CCP_XTS_AES_CTX_KSB_COUNT != 1);
BUILD_BUG_ON(CCP_XTS_AES_KEY_SB_COUNT != 1);
BUILD_BUG_ON(CCP_XTS_AES_CTX_SB_COUNT != 1);
ret = -EIO;
memset(&op, 0, sizeof(op));
op.cmd_q = cmd_q;
op.jobid = ccp_gen_jobid(cmd_q->ccp);
op.ksb_key = cmd_q->ksb_key;
op.ksb_ctx = cmd_q->ksb_ctx;
op.sb_key = cmd_q->sb_key;
op.sb_ctx = cmd_q->sb_ctx;
op.init = 1;
op.u.xts.action = xts->action;
op.u.xts.unit_size = xts->unit_size;
/* All supported key sizes fit in a single (32-byte) KSB entry
/* All supported key sizes fit in a single (32-byte) SB entry
* and must be in little endian format. Use the 256-bit byte
* swap passthru option to convert from big endian to little
* endian.
*/
ret = ccp_init_dm_workarea(&key, cmd_q,
CCP_XTS_AES_KEY_KSB_COUNT * CCP_KSB_BYTES,
CCP_XTS_AES_KEY_SB_COUNT * CCP_SB_BYTES,
DMA_TO_DEVICE);
if (ret)
return ret;
dm_offset = CCP_KSB_BYTES - AES_KEYSIZE_128;
dm_offset = CCP_SB_BYTES - AES_KEYSIZE_128;
ccp_set_dm_area(&key, dm_offset, xts->key, 0, xts->key_len);
ccp_set_dm_area(&key, 0, xts->key, dm_offset, xts->key_len);
ret = ccp_copy_to_ksb(cmd_q, &key, op.jobid, op.ksb_key,
ret = ccp_copy_to_sb(cmd_q, &key, op.jobid, op.sb_key,
CCP_PASSTHRU_BYTESWAP_256BIT);
if (ret) {
cmd->engine_error = cmd_q->cmd_error;
goto e_key;
}
/* The AES context fits in a single (32-byte) KSB entry and
/* The AES context fits in a single (32-byte) SB entry and
* for XTS is already in little endian format so no byte swapping
* is needed.
*/
ret = ccp_init_dm_workarea(&ctx, cmd_q,
CCP_XTS_AES_CTX_KSB_COUNT * CCP_KSB_BYTES,
CCP_XTS_AES_CTX_SB_COUNT * CCP_SB_BYTES,
DMA_BIDIRECTIONAL);
if (ret)
goto e_key;
ccp_set_dm_area(&ctx, 0, xts->iv, 0, xts->iv_len);
ret = ccp_copy_to_ksb(cmd_q, &ctx, op.jobid, op.ksb_ctx,
ret = ccp_copy_to_sb(cmd_q, &ctx, op.jobid, op.sb_ctx,
CCP_PASSTHRU_BYTESWAP_NOOP);
if (ret) {
cmd->engine_error = cmd_q->cmd_error;
......@@ -950,7 +950,7 @@ static int ccp_run_xts_aes_cmd(struct ccp_cmd_queue *cmd_q,
/* Retrieve the AES context - convert from LE to BE using
* 32-byte (256-bit) byteswapping
*/
ret = ccp_copy_from_ksb(cmd_q, &ctx, op.jobid, op.ksb_ctx,
ret = ccp_copy_from_sb(cmd_q, &ctx, op.jobid, op.sb_ctx,
CCP_PASSTHRU_BYTESWAP_256BIT);
if (ret) {
cmd->engine_error = cmd_q->cmd_error;
......@@ -958,7 +958,7 @@ static int ccp_run_xts_aes_cmd(struct ccp_cmd_queue *cmd_q,
}
/* ...but we only need AES_BLOCK_SIZE bytes */
dm_offset = CCP_KSB_BYTES - AES_BLOCK_SIZE;
dm_offset = CCP_SB_BYTES - AES_BLOCK_SIZE;
ccp_get_dm_area(&ctx, dm_offset, xts->iv, 0, xts->iv_len);
e_dst:
......@@ -1036,21 +1036,21 @@ static int ccp_run_sha_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
if (!sha->src)
return -EINVAL;
BUILD_BUG_ON(CCP_SHA_KSB_COUNT != 1);
BUILD_BUG_ON(CCP_SHA_SB_COUNT != 1);
memset(&op, 0, sizeof(op));
op.cmd_q = cmd_q;
op.jobid = ccp_gen_jobid(cmd_q->ccp);
op.ksb_ctx = cmd_q->ksb_ctx;
op.sb_ctx = cmd_q->sb_ctx;
op.u.sha.type = sha->type;
op.u.sha.msg_bits = sha->msg_bits;
/* The SHA context fits in a single (32-byte) KSB entry and
/* The SHA context fits in a single (32-byte) SB entry and
* must be in little endian format. Use the 256-bit byte swap
* passthru option to convert from big endian to little endian.
*/
ret = ccp_init_dm_workarea(&ctx, cmd_q,
CCP_SHA_KSB_COUNT * CCP_KSB_BYTES,
CCP_SHA_SB_COUNT * CCP_SB_BYTES,
DMA_BIDIRECTIONAL);
if (ret)
return ret;
......@@ -1077,7 +1077,7 @@ static int ccp_run_sha_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
ccp_set_dm_area(&ctx, 0, sha->ctx, 0, sha->ctx_len);
}
ret = ccp_copy_to_ksb(cmd_q, &ctx, op.jobid, op.ksb_ctx,
ret = ccp_copy_to_sb(cmd_q, &ctx, op.jobid, op.sb_ctx,
CCP_PASSTHRU_BYTESWAP_256BIT);
if (ret) {
cmd->engine_error = cmd_q->cmd_error;
......@@ -1107,7 +1107,7 @@ static int ccp_run_sha_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
/* Retrieve the SHA context - convert from LE to BE using
* 32-byte (256-bit) byteswapping to BE
*/
ret = ccp_copy_from_ksb(cmd_q, &ctx, op.jobid, op.ksb_ctx,
ret = ccp_copy_from_sb(cmd_q, &ctx, op.jobid, op.sb_ctx,
CCP_PASSTHRU_BYTESWAP_256BIT);
if (ret) {
cmd->engine_error = cmd_q->cmd_error;
......@@ -1191,7 +1191,7 @@ static int ccp_run_rsa_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
struct ccp_dm_workarea exp, src;
struct ccp_data dst;
struct ccp_op op;
unsigned int ksb_count, i_len, o_len;
unsigned int sb_count, i_len, o_len;
int ret;
if (rsa->key_size > CCP_RSA_MAX_WIDTH)
......@@ -1209,16 +1209,16 @@ static int ccp_run_rsa_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
o_len = ((rsa->key_size + 255) / 256) * 32;
i_len = o_len * 2;
ksb_count = o_len / CCP_KSB_BYTES;
sb_count = o_len / CCP_SB_BYTES;
memset(&op, 0, sizeof(op));
op.cmd_q = cmd_q;
op.jobid = ccp_gen_jobid(cmd_q->ccp);
op.ksb_key = ccp_alloc_ksb(cmd_q->ccp, ksb_count);
if (!op.ksb_key)
op.sb_key = ccp_alloc_ksb(cmd_q->ccp, sb_count);
if (!op.sb_key)
return -EIO;
/* The RSA exponent may span multiple (32-byte) KSB entries and must
/* The RSA exponent may span multiple (32-byte) SB entries and must
* be in little endian format. Reverse copy each 32-byte chunk
* of the exponent (En chunk to E0 chunk, E(n-1) chunk to E1 chunk)
* and each byte within that chunk and do not perform any byte swap
......@@ -1226,13 +1226,13 @@ static int ccp_run_rsa_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
*/
ret = ccp_init_dm_workarea(&exp, cmd_q, o_len, DMA_TO_DEVICE);
if (ret)
goto e_ksb;
goto e_sb;
ret = ccp_reverse_set_dm_area(&exp, rsa->exp, rsa->exp_len,
CCP_KSB_BYTES, false);
CCP_SB_BYTES, false);
if (ret)
goto e_exp;
ret = ccp_copy_to_ksb(cmd_q, &exp, op.jobid, op.ksb_key,
ret = ccp_copy_to_sb(cmd_q, &exp, op.jobid, op.sb_key,
CCP_PASSTHRU_BYTESWAP_NOOP);
if (ret) {
cmd->engine_error = cmd_q->cmd_error;
......@@ -1248,12 +1248,12 @@ static int ccp_run_rsa_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
goto e_exp;
ret = ccp_reverse_set_dm_area(&src, rsa->mod, rsa->mod_len,
CCP_KSB_BYTES, false);
CCP_SB_BYTES, false);
if (ret)
goto e_src;
src.address += o_len; /* Adjust the address for the copy operation */
ret = ccp_reverse_set_dm_area(&src, rsa->src, rsa->src_len,
CCP_KSB_BYTES, false);
CCP_SB_BYTES, false);
if (ret)
goto e_src;
src.address -= o_len; /* Reset the address to original value */
......@@ -1292,8 +1292,8 @@ static int ccp_run_rsa_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
e_exp:
ccp_dm_free(&exp);
e_ksb:
ccp_free_ksb(cmd_q->ccp, op.ksb_key, ksb_count);
e_sb:
ccp_free_ksb(cmd_q->ccp, op.sb_key, sb_count);
return ret;
}
......@@ -1322,7 +1322,7 @@ static int ccp_run_passthru_cmd(struct ccp_cmd_queue *cmd_q,
return -EINVAL;
}
BUILD_BUG_ON(CCP_PASSTHRU_KSB_COUNT != 1);
BUILD_BUG_ON(CCP_PASSTHRU_SB_COUNT != 1);
memset(&op, 0, sizeof(op));
op.cmd_q = cmd_q;
......@@ -1330,17 +1330,17 @@ static int ccp_run_passthru_cmd(struct ccp_cmd_queue *cmd_q,
if (pt->bit_mod != CCP_PASSTHRU_BITWISE_NOOP) {
/* Load the mask */
op.ksb_key = cmd_q->ksb_key;
op.sb_key = cmd_q->sb_key;
ret = ccp_init_dm_workarea(&mask, cmd_q,
CCP_PASSTHRU_KSB_COUNT *
CCP_KSB_BYTES,
CCP_PASSTHRU_SB_COUNT *
CCP_SB_BYTES,
DMA_TO_DEVICE);
if (ret)
return ret;
ccp_set_dm_area(&mask, 0, pt->mask, 0, pt->mask_len);
ret = ccp_copy_to_ksb(cmd_q, &mask, op.jobid, op.ksb_key,
ret = ccp_copy_to_sb(cmd_q, &mask, op.jobid, op.sb_key,
CCP_PASSTHRU_BYTESWAP_NOOP);
if (ret) {
cmd->engine_error = cmd_q->cmd_error;
......@@ -1449,7 +1449,7 @@ static int ccp_run_passthru_nomap_cmd(struct ccp_cmd_queue *cmd_q,
return -EINVAL;
}
BUILD_BUG_ON(CCP_PASSTHRU_KSB_COUNT != 1);
BUILD_BUG_ON(CCP_PASSTHRU_SB_COUNT != 1);
memset(&op, 0, sizeof(op));
op.cmd_q = cmd_q;
......@@ -1457,13 +1457,13 @@ static int ccp_run_passthru_nomap_cmd(struct ccp_cmd_queue *cmd_q,
if (pt->bit_mod != CCP_PASSTHRU_BITWISE_NOOP) {
/* Load the mask */
op.ksb_key = cmd_q->ksb_key;
op.sb_key = cmd_q->sb_key;
mask.length = pt->mask_len;
mask.dma.address = pt->mask;
mask.dma.length = pt->mask_len;
ret = ccp_copy_to_ksb(cmd_q, &mask, op.jobid, op.ksb_key,
ret = ccp_copy_to_sb(cmd_q, &mask, op.jobid, op.sb_key,
CCP_PASSTHRU_BYTESWAP_NOOP);
if (ret) {
cmd->engine_error = cmd_q->cmd_error;
......
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