diff options
Diffstat (limited to 'drivers/edac/amd64_edac.h')
| -rw-r--r-- | drivers/edac/amd64_edac.h | 81 |
1 files changed, 25 insertions, 56 deletions
diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h index a2bc9a650fff..1964f89a28bc 100644 --- a/drivers/edac/amd64_edac.h +++ b/drivers/edac/amd64_edac.h @@ -160,6 +160,14 @@ #define OFF false /* + * Create a contiguous bitmask starting at bit position @lo and ending at + * position @hi. For example + * + * GENMASK(21, 39) gives us the 64bit vector 0x000000ffffe00000. + */ +#define GENMASK(lo, hi) (((1ULL << ((hi) - (lo) + 1)) - 1) << (lo)) + +/* * PCI-defined configuration space registers */ @@ -198,45 +206,14 @@ /* * Function 2 - DRAM controller */ -#define K8_DCSB0 0x40 -#define F10_DCSB1 0x140 - -#define K8_DCSB_CS_ENABLE BIT(0) -#define K8_DCSB_NPT_SPARE BIT(1) -#define K8_DCSB_NPT_TESTFAIL BIT(2) - -/* - * REV E: select [31:21] and [15:9] from DCSB and the shift amount to form - * the address - */ -#define REV_E_DCSB_BASE_BITS (0xFFE0FE00ULL) -#define REV_E_DCS_SHIFT 4 - -#define REV_F_F1Xh_DCSB_BASE_BITS (0x1FF83FE0ULL) -#define REV_F_F1Xh_DCS_SHIFT 8 - -/* - * REV F and later: selects [28:19] and [13:5] from DCSB and the shift amount - * to form the address - */ -#define REV_F_DCSB_BASE_BITS (0x1FF83FE0ULL) -#define REV_F_DCS_SHIFT 8 - -/* DRAM CS Mask Registers */ -#define K8_DCSM0 0x60 -#define F10_DCSM1 0x160 - -/* REV E: select [29:21] and [15:9] from DCSM */ -#define REV_E_DCSM_MASK_BITS 0x3FE0FE00 - -/* unused bits [24:20] and [12:0] */ -#define REV_E_DCS_NOTUSED_BITS 0x01F01FFF +#define DCSB0 0x40 +#define DCSB1 0x140 +#define DCSB_CS_ENABLE BIT(0) -/* REV F and later: select [28:19] and [13:5] from DCSM */ -#define REV_F_F1Xh_DCSM_MASK_BITS 0x1FF83FE0 +#define DCSM0 0x60 +#define DCSM1 0x160 -/* unused bits [26:22] and [12:0] */ -#define REV_F_F1Xh_DCS_NOTUSED_BITS 0x07C01FFF +#define csrow_enabled(i, dct, pvt) ((pvt)->csels[(dct)].csbases[(i)] & DCSB_CS_ENABLE) #define DBAM0 0x80 #define DBAM1 0x180 @@ -412,6 +389,15 @@ struct dram_range { struct reg_pair lim; }; +/* A DCT chip selects collection */ +struct chip_select { + u32 csbases[NUM_CHIPSELECTS]; + u8 b_cnt; + + u32 csmasks[NUM_CHIPSELECTS]; + u8 m_cnt; +}; + struct amd64_pvt { struct low_ops *ops; @@ -434,29 +420,12 @@ struct amd64_pvt { u32 dbam0; /* DRAM Base Address Mapping reg for DCT0 */ u32 dbam1; /* DRAM Base Address Mapping reg for DCT1 */ - /* DRAM CS Base Address Registers F2x[1,0][5C:40] */ - u32 dcsb0[NUM_CHIPSELECTS]; - u32 dcsb1[NUM_CHIPSELECTS]; - - /* DRAM CS Mask Registers F2x[1,0][6C:60] */ - u32 dcsm0[NUM_CHIPSELECTS]; - u32 dcsm1[NUM_CHIPSELECTS]; + /* one for each DCT */ + struct chip_select csels[2]; /* DRAM base and limit pairs F1x[78,70,68,60,58,50,48,40] */ struct dram_range ranges[DRAM_RANGES]; - /* - * The following fields are set at (load) run time, after CPU revision - * has been determined, since the dct_base and dct_mask registers vary - * based on revision - */ - u32 dcsb_base; /* DCSB base bits */ - u32 dcsm_mask; /* DCSM mask bits */ - u32 cs_count; /* num chip selects (== num DCSB registers) */ - u32 num_dcsm; /* Number of DCSM registers */ - u32 dcs_mask_notused; /* DCSM notused mask bits */ - u32 dcs_shift; /* DCSB and DCSM shift value */ - u64 top_mem; /* top of memory below 4GB */ u64 top_mem2; /* top of memory above 4GB */ |