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powerpc/powernv: Move GET_FIELD/SET_FIELD to vas.h

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Move the GET_FIELD and SET_FIELD macros to vas.h as VAS and other
users of VAS, including NX-842 can use those macros.

There is a lot of related code between the VAS/NX kernel drivers
and skiboot. For consistency, switch the order of parameters in
SET_FIELD to match the order in skiboot.

Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Reviewed-by: Dan Streetman <ddstreet@ieee.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Sukadev Bhattiprolu 2017-08-28 23:23:32 -07:00 committed by Michael Ellerman
parent 967689141e
commit b6622a339e
3 changed files with 12 additions and 8 deletions
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8
arch/powerpc/include/asm/vas.h
View File

@ -29,6 +29,14 @@
#define VAS_THRESH_FIFO_GT_QTR_FULL 2
#define VAS_THRESH_FIFO_GT_EIGHTH_FULL 3
/*
* Get/Set bit fields
*/
#define GET_FIELD(m, v) (((v) & (m)) >> MASK_LSH(m))
#define MASK_LSH(m) (__builtin_ffsl(m) - 1)
#define SET_FIELD(m, v, val) \
(((v) & ~(m)) | ((((typeof(v))(val)) << MASK_LSH(m)) & (m)))
/*
* Co-processor Engine type.
*/

7
drivers/crypto/nx/nx-842-powernv.c
View File

@ -22,6 +22,7 @@
#include <asm/prom.h>
#include <asm/icswx.h>
#include <asm/vas.h>
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Dan Streetman <ddstreet@ieee.org>");
@ -424,9 +425,9 @@ static int nx842_powernv_function(const unsigned char *in, unsigned int inlen,
/* set up CCW */
ccw = 0;
ccw = SET_FIELD(ccw, CCW_CT, nx842_ct);
ccw = SET_FIELD(ccw, CCW_CI_842, 0); /* use 0 for hw auto-selection */
ccw = SET_FIELD(ccw, CCW_FC_842, fc);
ccw = SET_FIELD(CCW_CT, ccw, nx842_ct);
ccw = SET_FIELD(CCW_CI_842, ccw, 0); /* use 0 for hw auto-selection */
ccw = SET_FIELD(CCW_FC_842, ccw, fc);
/* set up CRB's CSB addr */
csb_addr = nx842_get_pa(csb) & CRB_CSB_ADDRESS;

5
drivers/crypto/nx/nx-842.h
View File

@ -100,11 +100,6 @@ static inline unsigned long nx842_get_pa(void *addr)
return page_to_phys(vmalloc_to_page(addr)) + offset_in_page(addr);
}
/* Get/Set bit fields */
#define MASK_LSH(m) (__builtin_ffsl(m) - 1)
#define GET_FIELD(v, m) (((v) & (m)) >> MASK_LSH(m))
#define SET_FIELD(v, m, val) (((v) & ~(m)) | (((val) << MASK_LSH(m)) & (m)))
/**
* This provides the driver's constraints. Different nx842 implementations
* may have varying requirements. The constraints are: