/*
* Copyright ( C ) 2019 Advanced Micro Devices , Inc .
*
* Permission is hereby granted , free of charge , to any person obtaining a
* copy of this software and associated documentation files ( the " Software " ) ,
* to deal in the Software without restriction , including without limitation
* the rights to use , copy , modify , merge , publish , distribute , sublicense ,
* and / or sell copies of the Software , and to permit persons to whom the
* Software is furnished to do so , subject to the following conditions :
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software .
*
* THE SOFTWARE IS PROVIDED " AS IS " , WITHOUT WARRANTY OF ANY KIND , EXPRESS
* OR IMPLIED , INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY ,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT . IN NO EVENT SHALL
* THE COPYRIGHT HOLDER ( S ) BE LIABLE FOR ANY CLAIM , DAMAGES OR OTHER LIABILITY , WHETHER IN
* AN ACTION OF CONTRACT , TORT OR OTHERWISE , ARISING FROM , OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE .
*/
#ifndef __AMDGPU_UMC_H__
#define __AMDGPU_UMC_H__
#include "amdgpu_ras.h"
#include "amdgpu_mca.h"
/*
* ( addr / 256 ) * 4096 , the higher 26 bits in ErrorAddr
* is the index of 4 KB block
*/
#define ADDR_OF_4KB_BLOCK(addr) (((addr) & ~0 xffULL) << 4 )
/*
* ( addr / 256 ) * 8192 , the higher 26 bits in ErrorAddr
* is the index of 8 KB block
*/
#define ADDR_OF_8KB_BLOCK(addr) (((addr) & ~0 xffULL) << 5 )
/*
* ( addr / 256 ) * 32768 , the higher 26 bits in ErrorAddr
* is the index of 8 KB block
*/
#define ADDR_OF_32KB_BLOCK(addr) (((addr) & ~0 xffULL) << 7 )
/* channel index is the index of 256B block */
#define ADDR_OF_256B_BLOCK(channel_index) ((channel_index) << 8 )
/* offset in 256B block */
#define OFFSET_IN_256B_BLOCK(addr) ((addr) & 0 xffULL)
#define LOOP_UMC_INST(umc_inst) for ((umc_inst) = 0 ; (umc_inst) < adev->umc.umc_inst_num; (umc_inst)++)
#define LOOP_UMC_CH_INST(ch_inst) for ((ch_inst) = 0 ; (ch_inst) < adev->umc.channel_inst_num; (ch_inst)++)
#define LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) LOOP_UMC_INST((umc_inst)) LOOP_UMC_CH_INST((ch_inst))
#define LOOP_UMC_NODE_INST(node_inst) \
for_each_set_bit((node_inst), &(adev->umc.active_mask), adev->umc.node_inst_num)
#define LOOP_UMC_EACH_NODE_INST_AND_CH(node_inst, umc_inst, ch_inst) \
LOOP_UMC_NODE_INST((node_inst)) LOOP_UMC_INST_AND_CH((umc_inst), (ch_inst))
/* Page retirement tag */
#define UMC_ECC_NEW_DETECTED_TAG 0 x1
/*
* a flag to indicate v2 of channel index stored in eeprom
*
* v1 ( legacy way ) : store channel index within a umc instance in eeprom
* range in UMC v12 : 0 ~ 7
* v2 : store global channel index in eeprom
* range in UMC v12 : 0 ~ 127
*
* NOTE : it ' s better to store it in eeprom_table_record . mem_channel ,
* but there is only 8 bits in mem_channel , and the channel number may
* increase in the future , we decide to save it in
* eeprom_table_record . retired_page . retired_page is useless in v2 ,
* we depend on eeprom_table_record . address instead of retired_page in v2 .
* Only 48 bits are saved on eeprom , use bit 47 here .
*/
#define UMC_CHANNEL_IDX_V2 BIT_ULL(47 )
/*
* save nps value to eeprom_table_record . retired_page [ 47 : 40 ] ,
* the channel index flag above will be retired .
*/
#define UMC_NPS_SHIFT 40
#define UMC_NPS_MASK 0 xffULL
/* three column bits and one row bit in MCA address flip
* in bad page retirement
*/
#define RETIRE_FLIP_BITS_NUM 4
struct amdgpu_umc_flip_bits {
uint32_t flip_bits_in_pa[RETIRE_FLIP_BITS_NUM];
uint32_t flip_row_bit;
uint32_t r13_in_pa;
uint32_t bit_num;
};
typedef int (*umc_func)(struct amdgpu_device *adev, uint32_t node_inst,
uint32_t umc_inst, uint32_t ch_inst, void *data);
struct amdgpu_umc_ras {
struct amdgpu_ras_block_object ras_block;
void (*err_cnt_init)(struct amdgpu_device *adev);
bool (*query_ras_poison_mode)(struct amdgpu_device *adev);
void (*ecc_info_query_ras_error_count)(struct amdgpu_device *adev,
void *ras_error_status);
void (*ecc_info_query_ras_error_address)(struct amdgpu_device *adev,
void *ras_error_status);
bool (*check_ecc_err_status)(struct amdgpu_device *adev,
enum amdgpu_mca_error_type type, void *ras_error_status);
int (*update_ecc_status)(struct amdgpu_device *adev,
uint64_t status, uint64_t ipid, uint64_t addr);
int (*convert_ras_err_addr)(struct amdgpu_device *adev,
struct ras_err_data *err_data,
struct ta_ras_query_address_input *addr_in,
struct ta_ras_query_address_output *addr_out,
bool dump_addr);
uint32_t (*get_die_id_from_pa)(struct amdgpu_device *adev,
uint64_t mca_addr, uint64_t retired_page);
void (*get_retire_flip_bits)(struct amdgpu_device *adev);
};
struct amdgpu_umc_funcs {
void (*init_registers)(struct amdgpu_device *adev);
};
struct amdgpu_umc {
/* max error count in one ras query call */
uint32_t max_ras_err_cnt_per_query;
/* number of umc channel instance with memory map register access */
uint32_t channel_inst_num;
/* number of umc instance with memory map register access */
uint32_t umc_inst_num;
/* Total number of umc node instance including harvest one */
uint32_t node_inst_num;
/* UMC regiser per channel offset */
uint32_t channel_offs;
/* how many pages are retired in one UE */
uint32_t retire_unit;
/* channel index table of interleaved memory */
const uint32_t *channel_idx_tbl;
struct ras_common_if *ras_if;
const struct amdgpu_umc_funcs *funcs;
struct amdgpu_umc_ras *ras;
/* active mask for umc node instance */
unsigned long active_mask;
struct amdgpu_umc_flip_bits flip_bits;
unsigned long err_addr_cnt;
};
int amdgpu_umc_ras_sw_init(struct amdgpu_device *adev);
int amdgpu_umc_ras_late_init(struct amdgpu_device *adev, struct ras_common_if *ras_block);
int amdgpu_umc_poison_handler(struct amdgpu_device *adev,
enum amdgpu_ras_block block, uint32_t reset);
int amdgpu_umc_pasid_poison_handler(struct amdgpu_device *adev,
enum amdgpu_ras_block block, uint16_t pasid,
pasid_notify pasid_fn, void *data, uint32_t reset);
int amdgpu_umc_process_ecc_irq(struct amdgpu_device *adev,
struct amdgpu_irq_src *source,
struct amdgpu_iv_entry *entry);
int amdgpu_umc_fill_error_record(struct ras_err_data *err_data,
uint64_t err_addr,
uint64_t retired_page,
uint32_t channel_index,
uint32_t umc_inst);
int amdgpu_umc_process_ras_data_cb(struct amdgpu_device *adev,
void *ras_error_status,
struct amdgpu_iv_entry *entry);
int amdgpu_umc_page_retirement_mca(struct amdgpu_device *adev,
uint64_t err_addr, uint32_t ch_inst, uint32_t umc_inst);
int amdgpu_umc_loop_channels(struct amdgpu_device *adev,
umc_func func, void *data);
int amdgpu_umc_update_ecc_status(struct amdgpu_device *adev,
uint64_t status, uint64_t ipid, uint64_t addr);
int amdgpu_umc_logs_ecc_err(struct amdgpu_device *adev,
struct radix_tree_root *ecc_tree, struct ras_ecc_err *ecc_err);
void amdgpu_umc_handle_bad_pages(struct amdgpu_device *adev,
void *ras_error_status);
int amdgpu_umc_pages_in_a_row(struct amdgpu_device *adev,
struct ras_err_data *err_data, uint64_t pa_addr);
int amdgpu_umc_lookup_bad_pages_in_a_row(struct amdgpu_device *adev,
uint64_t pa_addr, uint64_t *pfns, int len);
int amdgpu_umc_mca_to_addr(struct amdgpu_device *adev,
uint64_t err_addr, uint32_t ch, uint32_t umc,
uint32_t node, uint32_t socket,
struct ta_ras_query_address_output *addr_out, bool dump_addr);
int amdgpu_umc_pa2mca(struct amdgpu_device *adev,
uint64_t pa, uint64_t *mca, enum amdgpu_memory_partition nps);
#endif
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