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-rw-r--r--drivers/edac/i3000_edac.c50
1 files changed, 35 insertions, 15 deletions
diff --git a/drivers/edac/i3000_edac.c b/drivers/edac/i3000_edac.c
index 3ccf3b5eecc3..62d961e68973 100644
--- a/drivers/edac/i3000_edac.c
+++ b/drivers/edac/i3000_edac.c
@@ -42,11 +42,23 @@
42 * 0 Error channel 0/1 42 * 0 Error channel 0/1
43 */ 43 */
44#define I3000_DEAP_GRAIN (1 << 7) 44#define I3000_DEAP_GRAIN (1 << 7)
45#define I3000_DEAP_PFN(edeap, deap) ((((edeap) & 1) << (32 - PAGE_SHIFT)) \ 45
46 | ((deap) >> PAGE_SHIFT)) 46static inline unsigned long deap_pfn(u8 edeap, u32 deap)
47#define I3000_DEAP_OFFSET(deap) ((deap) & ~(I3000_DEAP_GRAIN-1) & \ 47{
48 ~PAGE_MASK) 48 deap >>= PAGE_SHIFT;
49#define I3000_DEAP_CHANNEL(deap) ((deap) & 1) 49 deap |= (edeap & 1) << (32 - PAGE_SHIFT);
50 return deap;
51}
52
53static inline unsigned long deap_offset(u32 deap)
54{
55 return deap & ~(I3000_DEAP_GRAIN - 1) & ~PAGE_MASK;
56}
57
58static inline int deap_channel(u32 deap)
59{
60 return deap & 1;
61}
50 62
51#define I3000_DERRSYN 0x5c /* DRAM Error Syndrome (8b) 63#define I3000_DERRSYN 0x5c /* DRAM Error Syndrome (8b)
52 * 64 *
@@ -116,8 +128,16 @@
116 * Others: reserved 128 * Others: reserved
117 */ 129 */
118#define I3000_C1DRA 0x188 /* Channel 1 DRAM Rank Attribute (8b x 2) */ 130#define I3000_C1DRA 0x188 /* Channel 1 DRAM Rank Attribute (8b x 2) */
119#define ODD_RANK_ATTRIB(dra) (((dra) & 0x70) >> 4) 131
120#define EVEN_RANK_ATTRIB(dra) ((dra) & 0x07) 132static inline unsigned char odd_rank_attrib(unsigned char dra)
133{
134 return (dra & 0x70) >> 4;
135}
136
137static inline unsigned char even_rank_attrib(unsigned char dra)
138{
139 return dra & 0x07;
140}
121 141
122#define I3000_C0DRC0 0x120 /* DRAM Controller Mode 0 (32b) 142#define I3000_C0DRC0 0x120 /* DRAM Controller Mode 0 (32b)
123 * 143 *
@@ -206,8 +226,8 @@ static int i3000_process_error_info(struct mem_ctl_info *mci,
206 struct i3000_error_info *info, 226 struct i3000_error_info *info,
207 int handle_errors) 227 int handle_errors)
208{ 228{
209 int row, multi_chan; 229 int row, multi_chan, channel;
210 int pfn, offset, channel; 230 unsigned long pfn, offset;
211 231
212 multi_chan = mci->csrows[0].nr_channels - 1; 232 multi_chan = mci->csrows[0].nr_channels - 1;
213 233
@@ -222,9 +242,9 @@ static int i3000_process_error_info(struct mem_ctl_info *mci,
222 info->errsts = info->errsts2; 242 info->errsts = info->errsts2;
223 } 243 }
224 244
225 pfn = I3000_DEAP_PFN(info->edeap, info->deap); 245 pfn = deap_pfn(info->edeap, info->deap);
226 offset = I3000_DEAP_OFFSET(info->deap); 246 offset = deap_offset(info->deap);
227 channel = I3000_DEAP_CHANNEL(info->deap); 247 channel = deap_channel(info->deap);
228 248
229 row = edac_mc_find_csrow_by_page(mci, pfn); 249 row = edac_mc_find_csrow_by_page(mci, pfn);
230 250
@@ -258,9 +278,9 @@ static int i3000_is_interleaved(const unsigned char *c0dra,
258 * we're not interleaved. 278 * we're not interleaved.
259 */ 279 */
260 for (i = 0; i < I3000_RANKS_PER_CHANNEL / 2; i++) 280 for (i = 0; i < I3000_RANKS_PER_CHANNEL / 2; i++)
261 if (ODD_RANK_ATTRIB(c0dra[i]) != ODD_RANK_ATTRIB(c1dra[i]) || 281 if (odd_rank_attrib(c0dra[i]) != odd_rank_attrib(c1dra[i]) ||
262 EVEN_RANK_ATTRIB(c0dra[i]) != 282 even_rank_attrib(c0dra[i]) !=
263 EVEN_RANK_ATTRIB(c1dra[i])) 283 even_rank_attrib(c1dra[i]))
264 return 0; 284 return 0;
265 285
266 /* 286 /*