diff options
Diffstat (limited to 'drivers/bus/fslmc/qbman/qbman_portal.h')
| -rw-r--r-- | drivers/bus/fslmc/qbman/qbman_portal.h | 140 |
1 files changed, 15 insertions, 125 deletions
diff --git a/drivers/bus/fslmc/qbman/qbman_portal.h b/drivers/bus/fslmc/qbman/qbman_portal.h index 7aa1d4f6..d9f3ed7e 100644 --- a/drivers/bus/fslmc/qbman/qbman_portal.h +++ b/drivers/bus/fslmc/qbman/qbman_portal.h @@ -26,9 +26,14 @@ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ -#include "qbman_private.h" +#include "qbman_sys.h" #include <fsl_qbman_portal.h> +uint32_t qman_version; +#define QMAN_REV_4000 0x04000000 +#define QMAN_REV_4100 0x04010000 +#define QMAN_REV_4101 0x04010001 + /* All QBMan command and result structures use this "valid bit" encoding */ #define QB_VALID_BIT ((uint32_t)0x80) @@ -39,7 +44,8 @@ #define QBMAN_EQCR_SIZE 8 -static inline u8 qm_cyc_diff(u8 ringsize, u8 first, u8 last) +static inline uint8_t qm_cyc_diff(uint8_t ringsize, uint8_t first, + uint8_t last) { /* 'first' is included, 'last' is excluded */ if (first <= last) @@ -122,138 +128,22 @@ struct qbman_swp { * non-NULL if only if the response is complete). */ void *qbman_swp_mc_start(struct qbman_swp *p); -void qbman_swp_mc_submit(struct qbman_swp *p, void *cmd, uint32_t cmd_verb); +void qbman_swp_mc_submit(struct qbman_swp *p, void *cmd, uint8_t cmd_verb); void *qbman_swp_mc_result(struct qbman_swp *p); /* Wraps up submit + poll-for-result */ static inline void *qbman_swp_mc_complete(struct qbman_swp *swp, void *cmd, - uint32_t cmd_verb) + uint8_t cmd_verb) { - int loopvar; + int loopvar = 1000; qbman_swp_mc_submit(swp, cmd, cmd_verb); - DBG_POLL_START(loopvar); do { - DBG_POLL_CHECK(loopvar); cmd = qbman_swp_mc_result(swp); - } while (!cmd); - return cmd; -} - -/* ------------ */ -/* qb_attr_code */ -/* ------------ */ - -/* This struct locates a sub-field within a QBMan portal (CENA) cacheline which - * is either serving as a configuration command or a query result. The - * representation is inherently little-endian, as the indexing of the words is - * itself little-endian in nature and DPAA2 QBMan is little endian for anything - * that crosses a word boundary too (64-bit fields are the obvious examples). - */ -struct qb_attr_code { - unsigned int word; /* which uint32_t[] array member encodes the field */ - unsigned int lsoffset; /* encoding offset from ls-bit */ - unsigned int width; /* encoding width. (bool must be 1.) */ -}; - -/* Some pre-defined codes */ -extern struct qb_attr_code code_generic_verb; -extern struct qb_attr_code code_generic_rslt; - -/* Macros to define codes */ -#define QB_CODE(a, b, c) { a, b, c} -#define QB_CODE_NULL \ - QB_CODE((unsigned int)-1, (unsigned int)-1, (unsigned int)-1) - -/* Rotate a code "ms", meaning that it moves from less-significant bytes to - * more-significant, from less-significant words to more-significant, etc. The - * "ls" version does the inverse, from more-significant towards - * less-significant. - */ -static inline void qb_attr_code_rotate_ms(struct qb_attr_code *code, - unsigned int bits) -{ - code->lsoffset += bits; - while (code->lsoffset > 31) { - code->word++; - code->lsoffset -= 32; - } -} - -static inline void qb_attr_code_rotate_ls(struct qb_attr_code *code, - unsigned int bits) -{ - /* Don't be fooled, this trick should work because the types are - * unsigned. So the case that interests the while loop (the rotate has - * gone too far and the word count needs to compensate for it), is - * manifested when lsoffset is negative. But that equates to a really - * large unsigned value, starting with lots of "F"s. As such, we can - * continue adding 32 back to it until it wraps back round above zero, - * to a value of 31 or less... - */ - code->lsoffset -= bits; - while (code->lsoffset > 31) { - code->word--; - code->lsoffset += 32; - } -} + } while (!cmd && loopvar--); + QBMAN_BUG_ON(!loopvar); -/* Implement a loop of code rotations until 'expr' evaluates to FALSE (0). */ -#define qb_attr_code_for_ms(code, bits, expr) \ - for (; expr; qb_attr_code_rotate_ms(code, bits)) -#define qb_attr_code_for_ls(code, bits, expr) \ - for (; expr; qb_attr_code_rotate_ls(code, bits)) - -/* decode a field from a cacheline */ -static inline uint32_t qb_attr_code_decode(const struct qb_attr_code *code, - const uint32_t *cacheline) -{ - return d32_uint32_t(code->lsoffset, code->width, cacheline[code->word]); -} - -static inline uint64_t qb_attr_code_decode_64(const struct qb_attr_code *code, - const uint64_t *cacheline) -{ - return cacheline[code->word / 2]; -} - -/* encode a field to a cacheline */ -static inline void qb_attr_code_encode(const struct qb_attr_code *code, - uint32_t *cacheline, uint32_t val) -{ - cacheline[code->word] = - r32_uint32_t(code->lsoffset, code->width, cacheline[code->word]) - | e32_uint32_t(code->lsoffset, code->width, val); -} - -static inline void qb_attr_code_encode_64(const struct qb_attr_code *code, - uint64_t *cacheline, uint64_t val) -{ - cacheline[code->word / 2] = val; -} - -/* Small-width signed values (two's-complement) will decode into medium-width - * positives. (Eg. for an 8-bit signed field, which stores values from -128 to - * +127, a setting of -7 would appear to decode to the 32-bit unsigned value - * 249. Likewise -120 would decode as 136.) This function allows the caller to - * "re-sign" such fields to 32-bit signed. (Eg. -7, which was 249 with an 8-bit - * encoding, will become 0xfffffff9 if you cast the return value to uint32_t). - */ -static inline int32_t qb_attr_code_makesigned(const struct qb_attr_code *code, - uint32_t val) -{ - QBMAN_BUG_ON(val >= (1u << code->width)); - /* code->width should never exceed the width of val. If it does then a - * different function with larger val size must be used to translate - * from unsigned to signed - */ - QBMAN_BUG_ON(code->width > sizeof(val) * CHAR_BIT); - /* If the high bit was set, it was encoding a negative */ - if (val >= 1u << (code->width - 1)) - return (int32_t)0 - (int32_t)(((uint32_t)1 << code->width) - - val); - /* Otherwise, it was encoding a positive */ - return (int32_t)val; + return cmd; } /* ---------------------- */ @@ -274,4 +164,4 @@ static inline int32_t qb_attr_code_makesigned(const struct qb_attr_code *code, * an inline) is necessary to work with different descriptor types and to work * correctly with const and non-const inputs (and similarly-qualified outputs). */ -#define qb_cl(d) (&(d)->dont_manipulate_directly[0]) +#define qb_cl(d) (&(d)->donot_manipulate_directly[0]) |