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include: sbi: Add macros to create FIFO as local or global variable

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The FIFO data structure is quite handy of variety of use-case so add
SBI_FIFO_INITIALIZER() and SBI_FIFO_DEFINE() helper macros to create
FIFO as local or global variable.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-By: Himanshu Chauhan <hchauhan@ventanamicro.com>
This commit is contained in:
Anup Patel
2024-07-05 08:51:43 +05:30
committed by Anup Patel
parent 94c3c53a56
commit d35c76a766
1 changed files with 12 additions and 0 deletions
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12
include/sbi/sbi_fifo.h
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@@ -23,6 +23,18 @@ struct sbi_fifo {
u16 tail; u16 tail;
}; };
#define SBI_FIFO_INITIALIZER(__queue_mem, __entries, __entry_size) \
{ .queue = __queue_mem, \
.qlock = SPIN_LOCK_INITIALIZER, \
.num_entries = __entries, \
.entry_size = __entry_size, \
.avail = 0, \
.tail = 0, \
}
#define SBI_FIFO_DEFINE(__name, __queue_mem, __entries, __entry_size) \
struct sbi_fifo __name = SBI_FIFO_INITIALIZER(__queue_mem, __entries, __entry_size)
enum sbi_fifo_inplace_update_types { enum sbi_fifo_inplace_update_types {
SBI_FIFO_SKIP, SBI_FIFO_SKIP,
SBI_FIFO_UPDATED, SBI_FIFO_UPDATED,