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Diffstat (limited to 'roms/u-boot/arch/mips/mach-octeon/include/mach/cvmx-fpa.h')
| -rw-r--r-- | roms/u-boot/arch/mips/mach-octeon/include/mach/cvmx-fpa.h | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/roms/u-boot/arch/mips/mach-octeon/include/mach/cvmx-fpa.h b/roms/u-boot/arch/mips/mach-octeon/include/mach/cvmx-fpa.h new file mode 100644 index 000000000..297fb3f4a --- /dev/null +++ b/roms/u-boot/arch/mips/mach-octeon/include/mach/cvmx-fpa.h @@ -0,0 +1,217 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2020 Marvell International Ltd. + * + * Interface to the hardware Free Pool Allocator. + */ + +#ifndef __CVMX_FPA_H__ +#define __CVMX_FPA_H__ + +#include "cvmx-scratch.h" +#include "cvmx-fpa-defs.h" +#include "cvmx-fpa1.h" +#include "cvmx-fpa3.h" + +#define CVMX_FPA_MIN_BLOCK_SIZE 128 +#define CVMX_FPA_ALIGNMENT 128 +#define CVMX_FPA_POOL_NAME_LEN 16 + +/* On CN78XX in backward-compatible mode, pool is mapped to AURA */ +#define CVMX_FPA_NUM_POOLS \ + (octeon_has_feature(OCTEON_FEATURE_FPA3) ? cvmx_fpa3_num_auras() : CVMX_FPA1_NUM_POOLS) + +/** + * Structure to store FPA pool configuration parameters. + */ +struct cvmx_fpa_pool_config { + s64 pool_num; + u64 buffer_size; + u64 buffer_count; +}; + +typedef struct cvmx_fpa_pool_config cvmx_fpa_pool_config_t; + +/** + * Return the name of the pool + * + * @param pool_num Pool to get the name of + * @return The name + */ +const char *cvmx_fpa_get_name(int pool_num); + +/** + * Initialize FPA per node + */ +int cvmx_fpa_global_init_node(int node); + +/** + * Enable the FPA + */ +static inline void cvmx_fpa_enable(void) +{ + if (!octeon_has_feature(OCTEON_FEATURE_FPA3)) + cvmx_fpa1_enable(); + else + cvmx_fpa_global_init_node(cvmx_get_node_num()); +} + +/** + * Disable the FPA + */ +static inline void cvmx_fpa_disable(void) +{ + if (!octeon_has_feature(OCTEON_FEATURE_FPA3)) + cvmx_fpa1_disable(); + /* FPA3 does not have a disable function */ +} + +/** + * @INTERNAL + * @deprecated OBSOLETE + * + * Kept for transition assistance only + */ +static inline void cvmx_fpa_global_initialize(void) +{ + cvmx_fpa_global_init_node(cvmx_get_node_num()); +} + +/** + * @INTERNAL + * + * Convert FPA1 style POOL into FPA3 AURA in + * backward compatibility mode. + */ +static inline cvmx_fpa3_gaura_t cvmx_fpa1_pool_to_fpa3_aura(cvmx_fpa1_pool_t pool) +{ + if ((octeon_has_feature(OCTEON_FEATURE_FPA3))) { + unsigned int node = cvmx_get_node_num(); + cvmx_fpa3_gaura_t aura = __cvmx_fpa3_gaura(node, pool); + return aura; + } + return CVMX_FPA3_INVALID_GAURA; +} + +/** + * Get a new block from the FPA + * + * @param pool Pool to get the block from + * @return Pointer to the block or NULL on failure + */ +static inline void *cvmx_fpa_alloc(u64 pool) +{ + /* FPA3 is handled differently */ + if ((octeon_has_feature(OCTEON_FEATURE_FPA3))) { + return cvmx_fpa3_alloc(cvmx_fpa1_pool_to_fpa3_aura(pool)); + } else + return cvmx_fpa1_alloc(pool); +} + +/** + * Asynchronously get a new block from the FPA + * + * The result of cvmx_fpa_async_alloc() may be retrieved using + * cvmx_fpa_async_alloc_finish(). + * + * @param scr_addr Local scratch address to put response in. This is a byte + * address but must be 8 byte aligned. + * @param pool Pool to get the block from + */ +static inline void cvmx_fpa_async_alloc(u64 scr_addr, u64 pool) +{ + if ((octeon_has_feature(OCTEON_FEATURE_FPA3))) { + return cvmx_fpa3_async_alloc(scr_addr, cvmx_fpa1_pool_to_fpa3_aura(pool)); + } else + return cvmx_fpa1_async_alloc(scr_addr, pool); +} + +/** + * Retrieve the result of cvmx_fpa_async_alloc + * + * @param scr_addr The Local scratch address. Must be the same value + * passed to cvmx_fpa_async_alloc(). + * + * @param pool Pool the block came from. Must be the same value + * passed to cvmx_fpa_async_alloc. + * + * @return Pointer to the block or NULL on failure + */ +static inline void *cvmx_fpa_async_alloc_finish(u64 scr_addr, u64 pool) +{ + if ((octeon_has_feature(OCTEON_FEATURE_FPA3))) + return cvmx_fpa3_async_alloc_finish(scr_addr, cvmx_fpa1_pool_to_fpa3_aura(pool)); + else + return cvmx_fpa1_async_alloc_finish(scr_addr, pool); +} + +/** + * Free a block allocated with a FPA pool. + * Does NOT provide memory ordering in cases where the memory block was + * modified by the core. + * + * @param ptr Block to free + * @param pool Pool to put it in + * @param num_cache_lines + * Cache lines to invalidate + */ +static inline void cvmx_fpa_free_nosync(void *ptr, u64 pool, u64 num_cache_lines) +{ + /* FPA3 is handled differently */ + if ((octeon_has_feature(OCTEON_FEATURE_FPA3))) + cvmx_fpa3_free_nosync(ptr, cvmx_fpa1_pool_to_fpa3_aura(pool), num_cache_lines); + else + cvmx_fpa1_free_nosync(ptr, pool, num_cache_lines); +} + +/** + * Free a block allocated with a FPA pool. Provides required memory + * ordering in cases where memory block was modified by core. + * + * @param ptr Block to free + * @param pool Pool to put it in + * @param num_cache_lines + * Cache lines to invalidate + */ +static inline void cvmx_fpa_free(void *ptr, u64 pool, u64 num_cache_lines) +{ + if ((octeon_has_feature(OCTEON_FEATURE_FPA3))) + cvmx_fpa3_free(ptr, cvmx_fpa1_pool_to_fpa3_aura(pool), num_cache_lines); + else + cvmx_fpa1_free(ptr, pool, num_cache_lines); +} + +/** + * Setup a FPA pool to control a new block of memory. + * This can only be called once per pool. Make sure proper + * locking enforces this. + * + * @param pool Pool to initialize + * @param name Constant character string to name this pool. + * String is not copied. + * @param buffer Pointer to the block of memory to use. This must be + * accessible by all processors and external hardware. + * @param block_size Size for each block controlled by the FPA + * @param num_blocks Number of blocks + * + * @return the pool number on Success, + * -1 on failure + */ +int cvmx_fpa_setup_pool(int pool, const char *name, void *buffer, u64 block_size, u64 num_blocks); + +int cvmx_fpa_shutdown_pool(int pool); + +/** + * Gets the block size of buffer in specified pool + * @param pool Pool to get the block size from + * @return Size of buffer in specified pool + */ +unsigned int cvmx_fpa_get_block_size(int pool); + +int cvmx_fpa_is_pool_available(int pool_num); +u64 cvmx_fpa_get_pool_owner(int pool_num); +int cvmx_fpa_get_max_pools(void); +int cvmx_fpa_get_current_count(int pool_num); +int cvmx_fpa_validate_pool(int pool); + +#endif /* __CVM_FPA_H__ */ |