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linux-next/drivers/char/mbcs.h
Matthias Kaehlcke ae5e29798a MBCS: convert dmareadlock to mutex 
MBCS: Convert the semaphore dmareadlock to the mutex API

Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07 08:42:25 -08:00

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/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (c) 2005 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef __MBCS_H__
#define __MBCS_H__
/*
* General macros
*/
#define MB (1024*1024)
#define MB2 (2*MB)
#define MB4 (4*MB)
#define MB6 (6*MB)
/*
* Offsets and masks
*/
#define MBCS_CM_ID 0x0000 /* Identification */
#define MBCS_CM_STATUS 0x0008 /* Status */
#define MBCS_CM_ERROR_DETAIL1 0x0010 /* Error Detail1 */
#define MBCS_CM_ERROR_DETAIL2 0x0018 /* Error Detail2 */
#define MBCS_CM_CONTROL 0x0020 /* Control */
#define MBCS_CM_REQ_TOUT 0x0028 /* Request Time-out */
#define MBCS_CM_ERR_INT_DEST 0x0038 /* Error Interrupt Destination */
#define MBCS_CM_TARG_FL 0x0050 /* Target Flush */
#define MBCS_CM_ERR_STAT 0x0060 /* Error Status */
#define MBCS_CM_CLR_ERR_STAT 0x0068 /* Clear Error Status */
#define MBCS_CM_ERR_INT_EN 0x0070 /* Error Interrupt Enable */
#define MBCS_RD_DMA_SYS_ADDR 0x0100 /* Read DMA System Address */
#define MBCS_RD_DMA_LOC_ADDR 0x0108 /* Read DMA Local Address */
#define MBCS_RD_DMA_CTRL 0x0110 /* Read DMA Control */
#define MBCS_RD_DMA_AMO_DEST 0x0118 /* Read DMA AMO Destination */
#define MBCS_RD_DMA_INT_DEST 0x0120 /* Read DMA Interrupt Destination */
#define MBCS_RD_DMA_AUX_STAT 0x0130 /* Read DMA Auxillary Status */
#define MBCS_WR_DMA_SYS_ADDR 0x0200 /* Write DMA System Address */
#define MBCS_WR_DMA_LOC_ADDR 0x0208 /* Write DMA Local Address */
#define MBCS_WR_DMA_CTRL 0x0210 /* Write DMA Control */
#define MBCS_WR_DMA_AMO_DEST 0x0218 /* Write DMA AMO Destination */
#define MBCS_WR_DMA_INT_DEST 0x0220 /* Write DMA Interrupt Destination */
#define MBCS_WR_DMA_AUX_STAT 0x0230 /* Write DMA Auxillary Status */
#define MBCS_ALG_AMO_DEST 0x0300 /* Algorithm AMO Destination */
#define MBCS_ALG_INT_DEST 0x0308 /* Algorithm Interrupt Destination */
#define MBCS_ALG_OFFSETS 0x0310
#define MBCS_ALG_STEP 0x0318 /* Algorithm Step */
#define MBCS_GSCR_START 0x0000000
#define MBCS_DEBUG_START 0x0100000
#define MBCS_RAM0_START 0x0200000
#define MBCS_RAM1_START 0x0400000
#define MBCS_RAM2_START 0x0600000
#define MBCS_CM_CONTROL_REQ_TOUT_MASK 0x0000000000ffffffUL
//#define PIO_BASE_ADDR_BASE_OFFSET_MASK 0x00fffffffff00000UL
#define MBCS_SRAM_SIZE (1024*1024)
#define MBCS_CACHELINE_SIZE 128
/*
* MMR get's and put's
*/
#define MBCS_MMR_ADDR(mmr_base, offset)((uint64_t *)(mmr_base + offset))
#define MBCS_MMR_SET(mmr_base, offset, value) { \
uint64_t *mbcs_mmr_set_u64p, readback; \
mbcs_mmr_set_u64p = (uint64_t *)(mmr_base + offset); \
*mbcs_mmr_set_u64p = value; \
readback = *mbcs_mmr_set_u64p; \
}
#define MBCS_MMR_GET(mmr_base, offset) *(uint64_t *)(mmr_base + offset)
#define MBCS_MMR_ZERO(mmr_base, offset) MBCS_MMR_SET(mmr_base, offset, 0)
/*
* MBCS mmr structures
*/
union cm_id {
uint64_t cm_id_reg;
struct {
uint64_t always_one:1, // 0
mfg_id:11, // 11:1
part_num:16, // 27:12
bitstream_rev:8, // 35:28
:28; // 63:36
};
};
union cm_status {
uint64_t cm_status_reg;
struct {
uint64_t pending_reads:8, // 7:0
pending_writes:8, // 15:8
ice_rsp_credits:8, // 23:16
ice_req_credits:8, // 31:24
cm_req_credits:8, // 39:32
:1, // 40
rd_dma_in_progress:1, // 41
rd_dma_done:1, // 42
:1, // 43
wr_dma_in_progress:1, // 44
wr_dma_done:1, // 45
alg_waiting:1, // 46
alg_pipe_running:1, // 47
alg_done:1, // 48
:3, // 51:49
pending_int_reqs:8, // 59:52
:3, // 62:60
alg_half_speed_sel:1; // 63
};
};
union cm_error_detail1 {
uint64_t cm_error_detail1_reg;
struct {
uint64_t packet_type:4, // 3:0
source_id:2, // 5:4
data_size:2, // 7:6
tnum:8, // 15:8
byte_enable:8, // 23:16
gfx_cred:8, // 31:24
read_type:2, // 33:32
pio_or_memory:1, // 34
head_cw_error:1, // 35
:12, // 47:36
head_error_bit:1, // 48
data_error_bit:1, // 49
:13, // 62:50
valid:1; // 63
};
};
union cm_error_detail2 {
uint64_t cm_error_detail2_reg;
struct {
uint64_t address:56, // 55:0
:8; // 63:56
};
};
union cm_control {
uint64_t cm_control_reg;
struct {
uint64_t cm_id:2, // 1:0
:2, // 3:2
max_trans:5, // 8:4
:3, // 11:9
address_mode:1, // 12
:7, // 19:13
credit_limit:8, // 27:20
:5, // 32:28
rearm_stat_regs:1, // 33
prescalar_byp:1, // 34
force_gap_war:1, // 35
rd_dma_go:1, // 36
wr_dma_go:1, // 37
alg_go:1, // 38
rd_dma_clr:1, // 39
wr_dma_clr:1, // 40
alg_clr:1, // 41
:2, // 43:42
alg_wait_step:1, // 44
alg_done_amo_en:1, // 45
alg_done_int_en:1, // 46
:1, // 47
alg_sram0_locked:1, // 48
alg_sram1_locked:1, // 49
alg_sram2_locked:1, // 50
alg_done_clr:1, // 51
:12; // 63:52
};
};
union cm_req_timeout {
uint64_t cm_req_timeout_reg;
struct {
uint64_t time_out:24, // 23:0
:40; // 63:24
};
};
union intr_dest {
uint64_t intr_dest_reg;
struct {
uint64_t address:56, // 55:0
int_vector:8; // 63:56
};
};
union cm_error_status {
uint64_t cm_error_status_reg;
struct {
uint64_t ecc_sbe:1, // 0
ecc_mbe:1, // 1
unsupported_req:1, // 2
unexpected_rsp:1, // 3
bad_length:1, // 4
bad_datavalid:1, // 5
buffer_overflow:1, // 6
request_timeout:1, // 7
:8, // 15:8
head_inv_data_size:1, // 16
rsp_pactype_inv:1, // 17
head_sb_err:1, // 18
missing_head:1, // 19
head_inv_rd_type:1, // 20
head_cmd_err_bit:1, // 21
req_addr_align_inv:1, // 22
pio_req_addr_inv:1, // 23
req_range_dsize_inv:1, // 24
early_term:1, // 25
early_tail:1, // 26
missing_tail:1, // 27
data_flit_sb_err:1, // 28
cm2hcm_req_cred_of:1, // 29
cm2hcm_rsp_cred_of:1, // 30
rx_bad_didn:1, // 31
rd_dma_err_rsp:1, // 32
rd_dma_tnum_tout:1, // 33
rd_dma_multi_tnum_tou:1, // 34
wr_dma_err_rsp:1, // 35
wr_dma_tnum_tout:1, // 36
wr_dma_multi_tnum_tou:1, // 37
alg_data_overflow:1, // 38
alg_data_underflow:1, // 39
ram0_access_conflict:1, // 40
ram1_access_conflict:1, // 41
ram2_access_conflict:1, // 42
ram0_perr:1, // 43
ram1_perr:1, // 44
ram2_perr:1, // 45
int_gen_rsp_err:1, // 46
int_gen_tnum_tout:1, // 47
rd_dma_prog_err:1, // 48
wr_dma_prog_err:1, // 49
:14; // 63:50
};
};
union cm_clr_error_status {
uint64_t cm_clr_error_status_reg;
struct {
uint64_t clr_ecc_sbe:1, // 0
clr_ecc_mbe:1, // 1
clr_unsupported_req:1, // 2
clr_unexpected_rsp:1, // 3
clr_bad_length:1, // 4
clr_bad_datavalid:1, // 5
clr_buffer_overflow:1, // 6
clr_request_timeout:1, // 7
:8, // 15:8
clr_head_inv_data_siz:1, // 16
clr_rsp_pactype_inv:1, // 17
clr_head_sb_err:1, // 18
clr_missing_head:1, // 19
clr_head_inv_rd_type:1, // 20
clr_head_cmd_err_bit:1, // 21
clr_req_addr_align_in:1, // 22
clr_pio_req_addr_inv:1, // 23
clr_req_range_dsize_i:1, // 24
clr_early_term:1, // 25
clr_early_tail:1, // 26
clr_missing_tail:1, // 27
clr_data_flit_sb_err:1, // 28
clr_cm2hcm_req_cred_o:1, // 29
clr_cm2hcm_rsp_cred_o:1, // 30
clr_rx_bad_didn:1, // 31
clr_rd_dma_err_rsp:1, // 32
clr_rd_dma_tnum_tout:1, // 33
clr_rd_dma_multi_tnum:1, // 34
clr_wr_dma_err_rsp:1, // 35
clr_wr_dma_tnum_tout:1, // 36
clr_wr_dma_multi_tnum:1, // 37
clr_alg_data_overflow:1, // 38
clr_alg_data_underflo:1, // 39
clr_ram0_access_confl:1, // 40
clr_ram1_access_confl:1, // 41
clr_ram2_access_confl:1, // 42
clr_ram0_perr:1, // 43
clr_ram1_perr:1, // 44
clr_ram2_perr:1, // 45
clr_int_gen_rsp_err:1, // 46
clr_int_gen_tnum_tout:1, // 47
clr_rd_dma_prog_err:1, // 48
clr_wr_dma_prog_err:1, // 49
:14; // 63:50
};
};
union cm_error_intr_enable {
uint64_t cm_error_intr_enable_reg;
struct {
uint64_t int_en_ecc_sbe:1, // 0
int_en_ecc_mbe:1, // 1
int_en_unsupported_re:1, // 2
int_en_unexpected_rsp:1, // 3
int_en_bad_length:1, // 4
int_en_bad_datavalid:1, // 5
int_en_buffer_overflo:1, // 6
int_en_request_timeou:1, // 7
:8, // 15:8
int_en_head_inv_data_:1, // 16
int_en_rsp_pactype_in:1, // 17
int_en_head_sb_err:1, // 18
int_en_missing_head:1, // 19
int_en_head_inv_rd_ty:1, // 20
int_en_head_cmd_err_b:1, // 21
int_en_req_addr_align:1, // 22
int_en_pio_req_addr_i:1, // 23
int_en_req_range_dsiz:1, // 24
int_en_early_term:1, // 25
int_en_early_tail:1, // 26
int_en_missing_tail:1, // 27
int_en_data_flit_sb_e:1, // 28
int_en_cm2hcm_req_cre:1, // 29
int_en_cm2hcm_rsp_cre:1, // 30
int_en_rx_bad_didn:1, // 31
int_en_rd_dma_err_rsp:1, // 32
int_en_rd_dma_tnum_to:1, // 33
int_en_rd_dma_multi_t:1, // 34
int_en_wr_dma_err_rsp:1, // 35
int_en_wr_dma_tnum_to:1, // 36
int_en_wr_dma_multi_t:1, // 37
int_en_alg_data_overf:1, // 38
int_en_alg_data_under:1, // 39
int_en_ram0_access_co:1, // 40
int_en_ram1_access_co:1, // 41
int_en_ram2_access_co:1, // 42
int_en_ram0_perr:1, // 43
int_en_ram1_perr:1, // 44
int_en_ram2_perr:1, // 45
int_en_int_gen_rsp_er:1, // 46
int_en_int_gen_tnum_t:1, // 47
int_en_rd_dma_prog_er:1, // 48
int_en_wr_dma_prog_er:1, // 49
:14; // 63:50
};
};
struct cm_mmr {
union cm_id id;
union cm_status status;
union cm_error_detail1 err_detail1;
union cm_error_detail2 err_detail2;
union cm_control control;
union cm_req_timeout req_timeout;
uint64_t reserved1[1];
union intr_dest int_dest;
uint64_t reserved2[2];
uint64_t targ_flush;
uint64_t reserved3[1];
union cm_error_status err_status;
union cm_clr_error_status clr_err_status;
union cm_error_intr_enable int_enable;
};
union dma_hostaddr {
uint64_t dma_hostaddr_reg;
struct {
uint64_t dma_sys_addr:56, // 55:0
:8; // 63:56
};
};
union dma_localaddr {
uint64_t dma_localaddr_reg;
struct {
uint64_t dma_ram_addr:21, // 20:0
dma_ram_sel:2, // 22:21
:41; // 63:23
};
};
union dma_control {
uint64_t dma_control_reg;
struct {
uint64_t dma_op_length:16, // 15:0
:18, // 33:16
done_amo_en:1, // 34
done_int_en:1, // 35
:1, // 36
pio_mem_n:1, // 37
:26; // 63:38
};
};
union dma_amo_dest {
uint64_t dma_amo_dest_reg;
struct {
uint64_t dma_amo_sys_addr:56, // 55:0
dma_amo_mod_type:3, // 58:56
:5; // 63:59
};
};
union rdma_aux_status {
uint64_t rdma_aux_status_reg;
struct {
uint64_t op_num_pacs_left:17, // 16:0
:5, // 21:17
lrsp_buff_empty:1, // 22
:17, // 39:23
pending_reqs_left:6, // 45:40
:18; // 63:46
};
};
struct rdma_mmr {
union dma_hostaddr host_addr;
union dma_localaddr local_addr;
union dma_control control;
union dma_amo_dest amo_dest;
union intr_dest intr_dest;
union rdma_aux_status aux_status;
};
union wdma_aux_status {
uint64_t wdma_aux_status_reg;
struct {
uint64_t op_num_pacs_left:17, // 16:0
:4, // 20:17
lreq_buff_empty:1, // 21
:18, // 39:22
pending_reqs_left:6, // 45:40
:18; // 63:46
};
};
struct wdma_mmr {
union dma_hostaddr host_addr;
union dma_localaddr local_addr;
union dma_control control;
union dma_amo_dest amo_dest;
union intr_dest intr_dest;
union wdma_aux_status aux_status;
};
union algo_step {
uint64_t algo_step_reg;
struct {
uint64_t alg_step_cnt:16, // 15:0
:48; // 63:16
};
};
struct algo_mmr {
union dma_amo_dest amo_dest;
union intr_dest intr_dest;
union {
uint64_t algo_offset_reg;
struct {
uint64_t sram0_offset:7, // 6:0
reserved0:1, // 7
sram1_offset:7, // 14:8
reserved1:1, // 15
sram2_offset:7, // 22:16
reserved2:14; // 63:23
};
} sram_offset;
union algo_step step;
};
struct mbcs_mmr {
struct cm_mmr cm;
uint64_t reserved1[17];
struct rdma_mmr rdDma;
uint64_t reserved2[25];
struct wdma_mmr wrDma;
uint64_t reserved3[25];
struct algo_mmr algo;
uint64_t reserved4[156];
};
/*
* defines
*/
#define DEVICE_NAME "mbcs"
#define MBCS_PART_NUM 0xfff0
#define MBCS_PART_NUM_ALG0 0xf001
#define MBCS_MFG_NUM 0x1
struct algoblock {
uint64_t amoHostDest;
uint64_t amoModType;
uint64_t intrHostDest;
uint64_t intrVector;
uint64_t algoStepCount;
};
struct getdma {
uint64_t hostAddr;
uint64_t localAddr;
uint64_t bytes;
uint64_t DoneAmoEnable;
uint64_t DoneIntEnable;
uint64_t peerIO;
uint64_t amoHostDest;
uint64_t amoModType;
uint64_t intrHostDest;
uint64_t intrVector;
};
struct putdma {
uint64_t hostAddr;
uint64_t localAddr;
uint64_t bytes;
uint64_t DoneAmoEnable;
uint64_t DoneIntEnable;
uint64_t peerIO;
uint64_t amoHostDest;
uint64_t amoModType;
uint64_t intrHostDest;
uint64_t intrVector;
};
struct mbcs_soft {
struct list_head list;
struct cx_dev *cxdev;
int major;
int nasid;
void *mmr_base;
wait_queue_head_t dmawrite_queue;
wait_queue_head_t dmaread_queue;
wait_queue_head_t algo_queue;
struct sn_irq_info *get_sn_irq;
struct sn_irq_info *put_sn_irq;
struct sn_irq_info *algo_sn_irq;
struct getdma getdma;
struct putdma putdma;
struct algoblock algo;
uint64_t gscr_addr; // pio addr
uint64_t ram0_addr; // pio addr
uint64_t ram1_addr; // pio addr
uint64_t ram2_addr; // pio addr
uint64_t debug_addr; // pio addr
atomic_t dmawrite_done;
atomic_t dmaread_done;
atomic_t algo_done;
struct mutex dmawritelock;
struct mutex dmareadlock;
struct mutex algolock;
};
static int mbcs_open(struct inode *ip, struct file *fp);
static ssize_t mbcs_sram_read(struct file *fp, char __user *buf, size_t len,
loff_t * off);
static ssize_t mbcs_sram_write(struct file *fp, const char __user *buf, size_t len,
loff_t * off);
static loff_t mbcs_sram_llseek(struct file *filp, loff_t off, int whence);
static int mbcs_gscr_mmap(struct file *fp, struct vm_area_struct *vma);
#endif // __MBCS_H__
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