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/*
* Copyright 2023 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) OR AUTHOR(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.
*/
#include "kfd_events.h"
#include "kfd_debug.h"
#include "soc15_int.h"
#include "kfd_device_queue_manager.h"
/*
* GFX10 SQ Interrupts
*
* There are 3 encoding types of interrupts sourced from SQ sent as a 44-bit
* packet to the Interrupt Handler:
* Auto - Generated by the SQG (various cmd overflows, timestamps etc)
* Wave - Generated by S_SENDMSG through a shader program
* Error - HW generated errors (Illegal instructions, Memviols, EDC etc)
*
* The 44-bit packet is mapped as {context_id1[7:0],context_id0[31:0]} plus
* 4-bits for VMID (SOC15_VMID_FROM_IH_ENTRY) as such:
*
* - context_id1[7:6]
* Encoding type (0 = Auto, 1 = Wave, 2 = Error)
*
* - context_id0[24]
* PRIV bit indicates that Wave S_SEND or error occurred within trap
*
* - context_id0[22:0]
* 23-bit data with the following layout per encoding type:
* Auto - only context_id0[8:0] is used, which reports various interrupts
* generated by SQG. The rest is 0.
* Wave - user data sent from m0 via S_SENDMSG
* Error - Error type (context_id0[22:19]), Error Details (rest of bits)
*
* The other context_id bits show coordinates (SE/SH/CU/SIMD/WGP) for wave
* S_SENDMSG and Errors. These are 0 for Auto.
*/
enum SQ_INTERRUPT_WORD_ENCODING {
SQ_INTERRUPT_WORD_ENCODING_AUTO = 0x0,
SQ_INTERRUPT_WORD_ENCODING_INST,
SQ_INTERRUPT_WORD_ENCODING_ERROR,
};
enum SQ_INTERRUPT_ERROR_TYPE {
SQ_INTERRUPT_ERROR_TYPE_EDC_FUE = 0x0,
SQ_INTERRUPT_ERROR_TYPE_ILLEGAL_INST,
SQ_INTERRUPT_ERROR_TYPE_MEMVIOL,
SQ_INTERRUPT_ERROR_TYPE_EDC_FED,
};
/* SQ_INTERRUPT_WORD_AUTO_CTXID */
#define SQ_INTERRUPT_WORD_AUTO_CTXID0__THREAD_TRACE__SHIFT 0
#define SQ_INTERRUPT_WORD_AUTO_CTXID0__WLT__SHIFT 1
#define SQ_INTERRUPT_WORD_AUTO_CTXID0__THREAD_TRACE_BUF0_FULL__SHIFT 2
#define SQ_INTERRUPT_WORD_AUTO_CTXID0__THREAD_TRACE_BUF1_FULL__SHIFT 3
#define SQ_INTERRUPT_WORD_AUTO_CTXID0__THREAD_TRACE_UTC_ERROR__SHIFT 7
#define SQ_INTERRUPT_WORD_AUTO_CTXID1__SE_ID__SHIFT 4
#define SQ_INTERRUPT_WORD_AUTO_CTXID1__ENCODING__SHIFT 6
#define SQ_INTERRUPT_WORD_AUTO_CTXID0__THREAD_TRACE_MASK 0x00000001
#define SQ_INTERRUPT_WORD_AUTO_CTXID0__WLT_MASK 0x00000002
#define SQ_INTERRUPT_WORD_AUTO_CTXID0__THREAD_TRACE_BUF0_FULL_MASK 0x00000004
#define SQ_INTERRUPT_WORD_AUTO_CTXID0__THREAD_TRACE_BUF1_FULL_MASK 0x00000008
#define SQ_INTERRUPT_WORD_AUTO_CTXID0__THREAD_TRACE_UTC_ERROR_MASK 0x00000080
#define SQ_INTERRUPT_WORD_AUTO_CTXID1__SE_ID_MASK 0x030
#define SQ_INTERRUPT_WORD_AUTO_CTXID1__ENCODING_MASK 0x0c0
/* SQ_INTERRUPT_WORD_WAVE_CTXID */
#define SQ_INTERRUPT_WORD_WAVE_CTXID0__DATA__SHIFT 0
#define SQ_INTERRUPT_WORD_WAVE_CTXID0__SA_ID__SHIFT 23
#define SQ_INTERRUPT_WORD_WAVE_CTXID0__PRIV__SHIFT 24
#define SQ_INTERRUPT_WORD_WAVE_CTXID0__WAVE_ID__SHIFT 25
#define SQ_INTERRUPT_WORD_WAVE_CTXID0__SIMD_ID__SHIFT 30
#define SQ_INTERRUPT_WORD_WAVE_CTXID1__WGP_ID__SHIFT 0
#define SQ_INTERRUPT_WORD_WAVE_CTXID1__SE_ID__SHIFT 4
#define SQ_INTERRUPT_WORD_WAVE_CTXID1__ENCODING__SHIFT 6
#define SQ_INTERRUPT_WORD_WAVE_CTXID0__DATA_MASK 0x000007fffff
#define SQ_INTERRUPT_WORD_WAVE_CTXID0__SA_ID_MASK 0x0000800000
#define SQ_INTERRUPT_WORD_WAVE_CTXID0__PRIV_MASK 0x00001000000
#define SQ_INTERRUPT_WORD_WAVE_CTXID0__WAVE_ID_MASK 0x0003e000000
#define SQ_INTERRUPT_WORD_WAVE_CTXID0__SIMD_ID_MASK 0x000c0000000
#define SQ_INTERRUPT_WORD_WAVE_CTXID1__WGP_ID_MASK 0x00f
#define SQ_INTERRUPT_WORD_WAVE_CTXID1__SE_ID_MASK 0x030
#define SQ_INTERRUPT_WORD_WAVE_CTXID1__ENCODING_MASK 0x0c0
#define KFD_CTXID0__ERR_TYPE_MASK 0x780000
#define KFD_CTXID0__ERR_TYPE__SHIFT 19
/* GFX10 SQ interrupt ENC type bit (context_id1[7:6]) for wave s_sendmsg */
#define KFD_CONTEXT_ID1_ENC_TYPE_WAVE_MASK 0x40
/* GFX10 SQ interrupt PRIV bit (context_id0[24]) for s_sendmsg inside trap */
#define KFD_CONTEXT_ID0_PRIV_MASK 0x1000000
/*
* The debugger will send user data(m0) with PRIV=1 to indicate it requires
* notification from the KFD with the following queue id (DOORBELL_ID) and
* trap code (TRAP_CODE).
*/
#define KFD_CONTEXT_ID0_DEBUG_DOORBELL_MASK 0x0003ff
#define KFD_CONTEXT_ID0_DEBUG_TRAP_CODE_SHIFT 10
#define KFD_CONTEXT_ID0_DEBUG_TRAP_CODE_MASK 0x07fc00
#define KFD_DEBUG_DOORBELL_ID(ctxid0) ((ctxid0) & \
KFD_CONTEXT_ID0_DEBUG_DOORBELL_MASK)
#define KFD_DEBUG_TRAP_CODE(ctxid0) (((ctxid0) & \
KFD_CONTEXT_ID0_DEBUG_TRAP_CODE_MASK) \
>> KFD_CONTEXT_ID0_DEBUG_TRAP_CODE_SHIFT)
#define KFD_DEBUG_CP_BAD_OP_ECODE_MASK 0x3fffc00
#define KFD_DEBUG_CP_BAD_OP_ECODE_SHIFT 10
#define KFD_DEBUG_CP_BAD_OP_ECODE(ctxid0) (((ctxid0) & \
KFD_DEBUG_CP_BAD_OP_ECODE_MASK) \
>> KFD_DEBUG_CP_BAD_OP_ECODE_SHIFT)
static bool event_interrupt_isr_v10(struct kfd_node *dev,
const uint32_t *ih_ring_entry,
uint32_t *patched_ihre,
bool *patched_flag)
{
uint16_t source_id, client_id, pasid, vmid;
const uint32_t *data = ih_ring_entry;
source_id = SOC15_SOURCE_ID_FROM_IH_ENTRY(ih_ring_entry);
client_id = SOC15_CLIENT_ID_FROM_IH_ENTRY(ih_ring_entry);
/* Only handle interrupts from KFD VMIDs */
vmid = SOC15_VMID_FROM_IH_ENTRY(ih_ring_entry);
if (!KFD_IRQ_IS_FENCE(client_id, source_id) &&
(vmid < dev->vm_info.first_vmid_kfd ||
vmid > dev->vm_info.last_vmid_kfd))
return false;
pasid = SOC15_PASID_FROM_IH_ENTRY(ih_ring_entry);
/* Only handle clients we care about */
if (client_id != SOC15_IH_CLIENTID_GRBM_CP &&
client_id != SOC15_IH_CLIENTID_SDMA0 &&
client_id != SOC15_IH_CLIENTID_SDMA1 &&
client_id != SOC15_IH_CLIENTID_SDMA2 &&
client_id != SOC15_IH_CLIENTID_SDMA3 &&
client_id != SOC15_IH_CLIENTID_SDMA4 &&
client_id != SOC15_IH_CLIENTID_SDMA5 &&
client_id != SOC15_IH_CLIENTID_SDMA6 &&
client_id != SOC15_IH_CLIENTID_SDMA7 &&
client_id != SOC15_IH_CLIENTID_VMC &&
client_id != SOC15_IH_CLIENTID_VMC1 &&
client_id != SOC15_IH_CLIENTID_UTCL2 &&
client_id != SOC15_IH_CLIENTID_SE0SH &&
client_id != SOC15_IH_CLIENTID_SE1SH &&
client_id != SOC15_IH_CLIENTID_SE2SH &&
client_id != SOC15_IH_CLIENTID_SE3SH)
return false;
pr_debug("client id 0x%x, source id %d, vmid %d, pasid 0x%x. raw data:\n",
client_id, source_id, vmid, pasid);
pr_debug("%8X, %8X, %8X, %8X, %8X, %8X, %8X, %8X.\n",
data[0], data[1], data[2], data[3],
data[4], data[5], data[6], data[7]);
/* If there is no valid PASID, it's likely a bug */
if (WARN_ONCE(pasid == 0, "Bug: No PASID in KFD interrupt"))
return 0;
/* Interrupt types we care about: various signals and faults.
* They will be forwarded to a work queue (see below).
*/
return source_id == SOC15_INTSRC_CP_END_OF_PIPE ||
source_id == SOC15_INTSRC_SDMA_TRAP ||
source_id == SOC15_INTSRC_SQ_INTERRUPT_MSG ||
source_id == SOC15_INTSRC_CP_BAD_OPCODE ||
client_id == SOC15_IH_CLIENTID_VMC ||
client_id == SOC15_IH_CLIENTID_VMC1 ||
client_id == SOC15_IH_CLIENTID_UTCL2 ||
KFD_IRQ_IS_FENCE(client_id, source_id);
}
static void event_interrupt_wq_v10(struct kfd_node *dev,
const uint32_t *ih_ring_entry)
{
uint16_t source_id, client_id, pasid, vmid;
uint32_t context_id0, context_id1;
uint32_t encoding, sq_intr_err_type;
source_id = SOC15_SOURCE_ID_FROM_IH_ENTRY(ih_ring_entry);
client_id = SOC15_CLIENT_ID_FROM_IH_ENTRY(ih_ring_entry);
pasid = SOC15_PASID_FROM_IH_ENTRY(ih_ring_entry);
vmid = SOC15_VMID_FROM_IH_ENTRY(ih_ring_entry);
context_id0 = SOC15_CONTEXT_ID0_FROM_IH_ENTRY(ih_ring_entry);
context_id1 = SOC15_CONTEXT_ID1_FROM_IH_ENTRY(ih_ring_entry);
if (client_id == SOC15_IH_CLIENTID_GRBM_CP ||
client_id == SOC15_IH_CLIENTID_SE0SH ||
client_id == SOC15_IH_CLIENTID_SE1SH ||
client_id == SOC15_IH_CLIENTID_SE2SH ||
client_id == SOC15_IH_CLIENTID_SE3SH) {
if (source_id == SOC15_INTSRC_CP_END_OF_PIPE)
kfd_signal_event_interrupt(pasid, context_id0, 32);
else if (source_id == SOC15_INTSRC_SQ_INTERRUPT_MSG) {
encoding = REG_GET_FIELD(context_id1,
SQ_INTERRUPT_WORD_WAVE_CTXID1, ENCODING);
switch (encoding) {
case SQ_INTERRUPT_WORD_ENCODING_AUTO:
pr_debug_ratelimited(
"sq_intr: auto, se %d, ttrace %d, wlt %d, ttrac_buf0_full %d, ttrac_buf1_full %d, ttrace_utc_err %d\n",
REG_GET_FIELD(context_id1, SQ_INTERRUPT_WORD_AUTO_CTXID1,
SE_ID),
REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_AUTO_CTXID0,
THREAD_TRACE),
REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_AUTO_CTXID0,
WLT),
REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_AUTO_CTXID0,
THREAD_TRACE_BUF0_FULL),
REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_AUTO_CTXID0,
THREAD_TRACE_BUF1_FULL),
REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_AUTO_CTXID0,
THREAD_TRACE_UTC_ERROR));
break;
case SQ_INTERRUPT_WORD_ENCODING_INST:
pr_debug_ratelimited("sq_intr: inst, se %d, data 0x%x, sa %d, priv %d, wave_id %d, simd_id %d, wgp_id %d\n",
REG_GET_FIELD(context_id1, SQ_INTERRUPT_WORD_WAVE_CTXID1,
SE_ID),
REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
DATA),
REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
SA_ID),
REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
PRIV),
REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
WAVE_ID),
REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
SIMD_ID),
REG_GET_FIELD(context_id1, SQ_INTERRUPT_WORD_WAVE_CTXID1,
WGP_ID));
if (context_id0 & SQ_INTERRUPT_WORD_WAVE_CTXID0__PRIV_MASK) {
if (kfd_set_dbg_ev_from_interrupt(dev, pasid,
KFD_DEBUG_DOORBELL_ID(context_id0),
KFD_DEBUG_TRAP_CODE(context_id0),
NULL, 0))
return;
}
break;
case SQ_INTERRUPT_WORD_ENCODING_ERROR:
sq_intr_err_type = REG_GET_FIELD(context_id0, KFD_CTXID0,
ERR_TYPE);
pr_warn_ratelimited("sq_intr: error, se %d, data 0x%x, sa %d, priv %d, wave_id %d, simd_id %d, wgp_id %d, err_type %d\n",
REG_GET_FIELD(context_id1, SQ_INTERRUPT_WORD_WAVE_CTXID1,
SE_ID),
REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
DATA),
REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
SA_ID),
REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
PRIV),
REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
WAVE_ID),
REG_GET_FIELD(context_id0, SQ_INTERRUPT_WORD_WAVE_CTXID0,
SIMD_ID),
REG_GET_FIELD(context_id1, SQ_INTERRUPT_WORD_WAVE_CTXID1,
WGP_ID),
sq_intr_err_type);
break;
default:
break;
}
kfd_signal_event_interrupt(pasid, context_id0 & 0x7fffff, 23);
} else if (source_id == SOC15_INTSRC_CP_BAD_OPCODE &&
KFD_DBG_EC_TYPE_IS_PACKET(KFD_DEBUG_CP_BAD_OP_ECODE(context_id0))) {
kfd_set_dbg_ev_from_interrupt(dev, pasid,
KFD_DEBUG_DOORBELL_ID(context_id0),
KFD_EC_MASK(KFD_DEBUG_CP_BAD_OP_ECODE(context_id0)),
NULL,
0);
}
} else if (client_id == SOC15_IH_CLIENTID_SDMA0 ||
client_id == SOC15_IH_CLIENTID_SDMA1 ||
client_id == SOC15_IH_CLIENTID_SDMA2 ||
client_id == SOC15_IH_CLIENTID_SDMA3 ||
(client_id == SOC15_IH_CLIENTID_SDMA3_Sienna_Cichlid &&
KFD_GC_VERSION(dev) == IP_VERSION(10, 3, 0)) ||
client_id == SOC15_IH_CLIENTID_SDMA4 ||
client_id == SOC15_IH_CLIENTID_SDMA5 ||
client_id == SOC15_IH_CLIENTID_SDMA6 ||
client_id == SOC15_IH_CLIENTID_SDMA7) {
if (source_id == SOC15_INTSRC_SDMA_TRAP) {
kfd_signal_event_interrupt(pasid, context_id0 & 0xfffffff, 28);
}
} else if (client_id == SOC15_IH_CLIENTID_VMC ||
client_id == SOC15_IH_CLIENTID_VMC1 ||
client_id == SOC15_IH_CLIENTID_UTCL2) {
struct kfd_vm_fault_info info = {0};
uint16_t ring_id = SOC15_RING_ID_FROM_IH_ENTRY(ih_ring_entry);
struct kfd_hsa_memory_exception_data exception_data;
info.vmid = vmid;
info.mc_id = client_id;
info.page_addr = ih_ring_entry[4] |
(uint64_t)(ih_ring_entry[5] & 0xf) << 32;
info.prot_valid = ring_id & 0x08;
info.prot_read = ring_id & 0x10;
info.prot_write = ring_id & 0x20;
memset(&exception_data, 0, sizeof(exception_data));
exception_data.gpu_id = dev->id;
exception_data.va = (info.page_addr) << PAGE_SHIFT;
exception_data.failure.NotPresent = info.prot_valid ? 1 : 0;
exception_data.failure.NoExecute = info.prot_exec ? 1 : 0;
exception_data.failure.ReadOnly = info.prot_write ? 1 : 0;
exception_data.failure.imprecise = 0;
kfd_set_dbg_ev_from_interrupt(dev,
pasid,
-1,
KFD_EC_MASK(EC_DEVICE_MEMORY_VIOLATION),
&exception_data,
sizeof(exception_data));
} else if (KFD_IRQ_IS_FENCE(client_id, source_id)) {
kfd_process_close_interrupt_drain(pasid);
}
}
const struct kfd_event_interrupt_class event_interrupt_class_v10 = {
.interrupt_isr = event_interrupt_isr_v10,
.interrupt_wq = event_interrupt_wq_v10,
};
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