diff options
Diffstat (limited to 'sys/dev/dpaa/bman.h')
| -rw-r--r-- | sys/dev/dpaa/bman.h | 172 |
1 files changed, 48 insertions, 124 deletions
diff --git a/sys/dev/dpaa/bman.h b/sys/dev/dpaa/bman.h index 01c09489890c..d8a76bfa672b 100644 --- a/sys/dev/dpaa/bman.h +++ b/sys/dev/dpaa/bman.h @@ -1,3 +1,9 @@ +/* + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (c) 2026 Justin Hibbits + */ + /*- * Copyright (c) 2011-2012 Semihalf. * All rights reserved. @@ -27,29 +33,16 @@ #ifndef _BMAN_H #define _BMAN_H +#include <sys/vmem.h> #include <machine/vmparam.h> -#include <contrib/ncsw/inc/Peripherals/bm_ext.h> - /* * BMAN Configuration */ -/* Maximum number of buffers in all BMAN pools */ -#define BMAN_MAX_BUFFERS 4096 - /* * Portal definitions */ -#define BMAN_CE_PA(base) (base) -#define BMAN_CI_PA(base) ((base) + 0x100000) - -#define BMAN_PORTAL_CE_PA(base, n) \ - (BMAN_CE_PA(base) + ((n) * BMAN_PORTAL_CE_SIZE)) -#define BMAN_PORTAL_CI_PA(base, n) \ - (BMAN_CI_PA(base) + ((n) * BMAN_PORTAL_CI_SIZE)) - -#define BMAN_CCSR_SIZE 0x1000 struct bman_softc { device_t sc_dev; /* device handle */ @@ -57,129 +50,42 @@ struct bman_softc { struct resource *sc_rres; /* register resource */ int sc_irid; /* interrupt rid */ struct resource *sc_ires; /* interrupt resource */ + void *sc_icookie; + vmem_t *sc_vmem; /* resource pool */ + int sc_major; + int sc_minor; +}; - bool sc_regs_mapped[MAXCPU]; /* register mapping status */ +struct bman_buffer { + uint16_t bpid; + uint16_t buf_hi; + uint32_t buf_lo; +} __aligned(8); - t_Handle sc_bh; /* BMAN handle */ - t_Handle sc_bph[MAXCPU]; /* BMAN portal handles */ - vm_paddr_t sc_bp_pa; /* BMAN portals PA */ - unsigned int sc_bpool_cpu[BM_MAX_NUM_OF_POOLS]; -}; +struct bman_pool; +struct bman_buffer; -/* - * External API - */ +typedef void (*bm_depletion_handler)(void *, bool); /* - * @brief Function to create BMAN pool. - * - * @param bpid The pointer to variable where Buffer Pool ID will be - * stored. - * - * @param bufferSize The size of buffers in newly created pool. - * - * @param maxBuffers The maximum number of buffers in software stockpile. - * Set to 0 if software stockpile should not be created. - * - * @param minBuffers The minimum number of buffers in software stockpile. - * Set to 0 if software stockpile should not be created. - * - * @param allocBuffers The number of buffers to preallocate during pool - * creation. - * - * @param f_GetBuf The buffer allocating function. Called only by - * bman_pool_create() and bman_pool_fill(). - * - * @param f_PutBuf The buffer freeing function. Called only by - * bman_pool_destroy(). - * - * @param dep_sw_entry The software portal depletion entry threshold. - * Set to 0 if depletion should not be signaled on - * software portal. - * - * @param dep_sw_exit The software portal depletion exit threshold. - * Set to 0 if depletion should not be signaled on - * software portal. - * - * @param dep_hw_entry The hardware portal depletion entry threshold. - * Set to 0 if depletion should not be signaled on - * hardware portal. - * - * @param dep_hw_exit The hardware portal depletion exit threshold. - * Set to 0 if depletion should not be signaled on - * hardware portal. - * - * @param f_Depletion The software portal depletion notification function. - * Set to NULL if depletion notification is not used. - * - * @param h_BufferPool The user provided buffer pool context passed to - * f_GetBuf, f_PutBuf and f_Depletion functions. - * - * @param f_PhysToVirt The PA to VA translation function. Set to NULL if - * default one should be used. - * - * @param f_VirtToPhys The VA to PA translation function. Set to NULL if - * default one should be used. - * - * @returns Handle to newly created BMAN pool or NULL on error. - * - * @cautions If pool uses software stockpile, all accesses to given - * pool must be protected by lock. Even if only hardware - * portal depletion notification is used, the caller must - * provide valid @p f_Depletion function. + * External API */ -t_Handle bman_pool_create(uint8_t *bpid, uint16_t bufferSize, - uint16_t maxBuffers, uint16_t minBuffers, uint16_t allocBuffers, - t_GetBufFunction *f_GetBuf, t_PutBufFunction *f_PutBuf, - uint32_t dep_sw_entry, uint32_t dep_sw_exit, uint32_t dep_hw_entry, - uint32_t dep_hw_exit, t_BmDepletionCallback *f_Depletion, - t_Handle h_BufferPool, t_PhysToVirt *f_PhysToVirt, - t_VirtToPhys *f_VirtToPhys); -/* - * @brief Fill pool with buffers. - * - * The bman_pool_fill() function fills the BMAN pool with buffers. The buffers - * are allocated through f_GetBuf function (see bman_pool_create() description). - * - * @param pool The BMAN pool handle. - * @param nbufs The number of buffers to allocate. To maximize - * performance this value should be multiple of 8. - * - * @returns Zero on success or error code on failure. - */ -int bman_pool_fill(t_Handle pool, uint16_t nbufs); +struct bman_pool *bman_new_pool(void); +struct bman_pool *bman_pool_create(uint8_t *bpid, uint16_t buffer_size, + uint16_t max_buffers, uint32_t dep_sw_entry, uint32_t dep_sw_exit, uint32_t + dep_hw_entry, uint32_t dep_hw_exit, bm_depletion_handler dep_cb, void *arg); /* * @brief Destroy pool. * - * The bman_pool_destroy() function destroys the BMAN pool. Buffers for pool - * are free through f_PutBuf function (see bman_pool_create() description). - * - * @param pool The BMAN pool handle. - * - * @returns Zero on success or error code on failure. - */ -int bman_pool_destroy(t_Handle pool); - -/* - * @brief Get a buffer from BMAN pool. + * The bman_pool_destroy() function destroys the BMAN pool. + * The buffer pool must be empty. * * @param pool The BMAN pool handle. - * - * @returns Pointer to the buffer or NULL if pool is empty. + * @return 0 on success, EBUSY if the pool is not empty. */ -void *bman_get_buffer(t_Handle pool); - -/* - * @brief Put a buffer to BMAN pool. - * - * @param pool The BMAN pool handle. - * @param buffer The pointer to buffer. - * - * @returns Zero on success or error code on failure. - */ -int bman_put_buffer(t_Handle pool, void *buffer); +int bman_pool_destroy(struct bman_pool *pool); /* * @brief Count free buffers in given pool. @@ -188,7 +94,25 @@ int bman_put_buffer(t_Handle pool, void *buffer); * * @returns Number of free buffers in pool. */ -uint32_t bman_count(t_Handle pool); +uint32_t bman_count(struct bman_pool *pool); + +int bman_put_buffers(struct bman_pool *, struct bman_buffer *, int); +static inline int +bman_put_buffer(struct bman_pool *p, vm_paddr_t buf, int bpid) +{ + struct bman_buffer b = { + .bpid = bpid, + .buf_hi = ((uintptr_t)buf) >> 32, + .buf_lo = ((uintptr_t)buf) & 0xffffffff + }; + return (bman_put_buffers(p, &b, 1)); +} + +int bman_acquire(struct bman_pool *, struct bman_buffer *, uint8_t); + +int bman_create_affine_portal(device_t, vm_offset_t, vm_offset_t, int); +void bman_destroy_affine_portal(int); +uint32_t bman_get_bpid(struct bman_pool *); /* * Bus i/f |