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Diffstat (limited to 'arch/mips/cavium-octeon/executive/cvmx-l2c.c')
-rw-r--r--arch/mips/cavium-octeon/executive/cvmx-l2c.c76
1 files changed, 39 insertions, 37 deletions
diff --git a/arch/mips/cavium-octeon/executive/cvmx-l2c.c b/arch/mips/cavium-octeon/executive/cvmx-l2c.c
index d38246e33dd..42e38c30b54 100644
--- a/arch/mips/cavium-octeon/executive/cvmx-l2c.c
+++ b/arch/mips/cavium-octeon/executive/cvmx-l2c.c
@@ -30,6 +30,8 @@
* measurement, and debugging facilities.
*/
+#include <linux/compiler.h>
+#include <linux/irqflags.h>
#include <asm/octeon/cvmx.h>
#include <asm/octeon/cvmx-l2c.h>
#include <asm/octeon/cvmx-spinlock.h>
@@ -145,7 +147,7 @@ int cvmx_l2c_set_hw_way_partition(uint32_t mask)
mask &= valid_mask;
/* A UMSK setting which blocks all L2C Ways is an error on some chips */
- if (mask == valid_mask && !OCTEON_IS_MODEL(OCTEON_CN63XX))
+ if (mask == valid_mask && !OCTEON_IS_MODEL(OCTEON_CN63XX))
return -1;
if (OCTEON_IS_MODEL(OCTEON_CN63XX))
@@ -284,22 +286,22 @@ uint64_t cvmx_l2c_read_perf(uint32_t counter)
*/
static void fault_in(uint64_t addr, int len)
{
- volatile char *ptr;
- volatile char dummy;
+ char *ptr;
+
/*
* Adjust addr and length so we get all cache lines even for
* small ranges spanning two cache lines.
*/
len += addr & CVMX_CACHE_LINE_MASK;
addr &= ~CVMX_CACHE_LINE_MASK;
- ptr = (volatile char *)cvmx_phys_to_ptr(addr);
+ ptr = cvmx_phys_to_ptr(addr);
/*
* Invalidate L1 cache to make sure all loads result in data
* being in L2.
*/
CVMX_DCACHE_INVALIDATE;
while (len > 0) {
- dummy += *ptr;
+ ACCESS_ONCE(*ptr);
len -= CVMX_CACHE_LINE_SIZE;
ptr += CVMX_CACHE_LINE_SIZE;
}
@@ -436,7 +438,7 @@ void cvmx_l2c_flush(void)
for (set = 0; set < n_set; set++) {
for (assoc = 0; assoc < n_assoc; assoc++) {
address = CVMX_ADD_SEG(CVMX_MIPS_SPACE_XKPHYS,
- (assoc << assoc_shift) | (set << set_shift));
+ (assoc << assoc_shift) | (set << set_shift));
CVMX_CACHE_WBIL2I(address, 0);
}
}
@@ -571,8 +573,8 @@ union __cvmx_l2c_tag {
* @index: Index of the cacheline
*
* Returns The Octeon model specific tag structure. This is
- * translated by a wrapper function to a generic form that is
- * easier for applications to use.
+ * translated by a wrapper function to a generic form that is
+ * easier for applications to use.
*/
static union __cvmx_l2c_tag __read_l2_tag(uint64_t assoc, uint64_t index)
{
@@ -616,12 +618,12 @@ static union __cvmx_l2c_tag __read_l2_tag(uint64_t assoc, uint64_t index)
".set push\n\t"
".set mips64\n\t"
".set noreorder\n\t"
- "sd %[dbg_val], 0(%[dbg_addr])\n\t" /* Enter debug mode, wait for store */
+ "sd %[dbg_val], 0(%[dbg_addr])\n\t" /* Enter debug mode, wait for store */
"ld $0, 0(%[dbg_addr])\n\t"
- "ld %[tag_val], 0(%[tag_addr])\n\t" /* Read L2C tag data */
- "sd $0, 0(%[dbg_addr])\n\t" /* Exit debug mode, wait for store */
+ "ld %[tag_val], 0(%[tag_addr])\n\t" /* Read L2C tag data */
+ "sd $0, 0(%[dbg_addr])\n\t" /* Exit debug mode, wait for store */
"ld $0, 0(%[dbg_addr])\n\t"
- "cache 9, 0($0)\n\t" /* Invalidate dcache to discard debug data */
+ "cache 9, 0($0)\n\t" /* Invalidate dcache to discard debug data */
".set pop"
: [tag_val] "=r" (tag_val)
: [dbg_addr] "r" (dbg_addr), [dbg_val] "r" (debug_val), [tag_addr] "r" (debug_tag_addr)
@@ -662,10 +664,10 @@ union cvmx_l2c_tag cvmx_l2c_get_tag(uint32_t association, uint32_t index)
CVMX_SYNC; /* make sure CVMX_L2C_TADX_TAG is updated */
l2c_tadx_tag.u64 = cvmx_read_csr(CVMX_L2C_TADX_TAG(0));
- tag.s.V = l2c_tadx_tag.s.valid;
- tag.s.D = l2c_tadx_tag.s.dirty;
- tag.s.L = l2c_tadx_tag.s.lock;
- tag.s.U = l2c_tadx_tag.s.use;
+ tag.s.V = l2c_tadx_tag.s.valid;
+ tag.s.D = l2c_tadx_tag.s.dirty;
+ tag.s.L = l2c_tadx_tag.s.lock;
+ tag.s.U = l2c_tadx_tag.s.use;
tag.s.addr = l2c_tadx_tag.s.tag;
} else {
union __cvmx_l2c_tag tmp_tag;
@@ -677,34 +679,34 @@ union cvmx_l2c_tag cvmx_l2c_get_tag(uint32_t association, uint32_t index)
* as it can represent all models.
*/
if (OCTEON_IS_MODEL(OCTEON_CN58XX) || OCTEON_IS_MODEL(OCTEON_CN56XX)) {
- tag.s.V = tmp_tag.cn58xx.V;
- tag.s.D = tmp_tag.cn58xx.D;
- tag.s.L = tmp_tag.cn58xx.L;
- tag.s.U = tmp_tag.cn58xx.U;
+ tag.s.V = tmp_tag.cn58xx.V;
+ tag.s.D = tmp_tag.cn58xx.D;
+ tag.s.L = tmp_tag.cn58xx.L;
+ tag.s.U = tmp_tag.cn58xx.U;
tag.s.addr = tmp_tag.cn58xx.addr;
} else if (OCTEON_IS_MODEL(OCTEON_CN38XX)) {
- tag.s.V = tmp_tag.cn38xx.V;
- tag.s.D = tmp_tag.cn38xx.D;
- tag.s.L = tmp_tag.cn38xx.L;
- tag.s.U = tmp_tag.cn38xx.U;
+ tag.s.V = tmp_tag.cn38xx.V;
+ tag.s.D = tmp_tag.cn38xx.D;
+ tag.s.L = tmp_tag.cn38xx.L;
+ tag.s.U = tmp_tag.cn38xx.U;
tag.s.addr = tmp_tag.cn38xx.addr;
} else if (OCTEON_IS_MODEL(OCTEON_CN31XX) || OCTEON_IS_MODEL(OCTEON_CN52XX)) {
- tag.s.V = tmp_tag.cn31xx.V;
- tag.s.D = tmp_tag.cn31xx.D;
- tag.s.L = tmp_tag.cn31xx.L;
- tag.s.U = tmp_tag.cn31xx.U;
+ tag.s.V = tmp_tag.cn31xx.V;
+ tag.s.D = tmp_tag.cn31xx.D;
+ tag.s.L = tmp_tag.cn31xx.L;
+ tag.s.U = tmp_tag.cn31xx.U;
tag.s.addr = tmp_tag.cn31xx.addr;
} else if (OCTEON_IS_MODEL(OCTEON_CN30XX)) {
- tag.s.V = tmp_tag.cn30xx.V;
- tag.s.D = tmp_tag.cn30xx.D;
- tag.s.L = tmp_tag.cn30xx.L;
- tag.s.U = tmp_tag.cn30xx.U;
+ tag.s.V = tmp_tag.cn30xx.V;
+ tag.s.D = tmp_tag.cn30xx.D;
+ tag.s.L = tmp_tag.cn30xx.L;
+ tag.s.U = tmp_tag.cn30xx.U;
tag.s.addr = tmp_tag.cn30xx.addr;
} else if (OCTEON_IS_MODEL(OCTEON_CN50XX)) {
- tag.s.V = tmp_tag.cn50xx.V;
- tag.s.D = tmp_tag.cn50xx.D;
- tag.s.L = tmp_tag.cn50xx.L;
- tag.s.U = tmp_tag.cn50xx.U;
+ tag.s.V = tmp_tag.cn50xx.V;
+ tag.s.D = tmp_tag.cn50xx.D;
+ tag.s.L = tmp_tag.cn50xx.L;
+ tag.s.U = tmp_tag.cn50xx.U;
tag.s.addr = tmp_tag.cn50xx.addr;
} else {
cvmx_dprintf("Unsupported OCTEON Model in %s\n", __func__);
@@ -863,7 +865,7 @@ void cvmx_l2c_flush_line(uint32_t assoc, uint32_t index)
uint64_t address;
/* Create the address based on index and association.
* Bits<20:17> select the way of the cache block involved in
- * the operation
+ * the operation
* Bits<16:7> of the effect address select the index
*/
address = CVMX_ADD_SEG(CVMX_MIPS_SPACE_XKPHYS,
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-25 08:59:30 +0000