/*
* Copyright 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) 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 "amdgpu.h"
#include "amdgpu_amdkfd.h"
#include "amdgpu_amdkfd_gfx_v10.h"
#include "gc/gc_10_1_0_offset.h"
#include "gc/gc_10_1_0_sh_mask.h"
#include "athub/athub_2_0_0_offset.h"
#include "athub/athub_2_0_0_sh_mask.h"
#include "oss/osssys_5_0_0_offset.h"
#include "oss/osssys_5_0_0_sh_mask.h"
#include "soc15_common.h"
#include "v10_structs.h"
#include "nv.h"
#include "nvd.h"
#include <uapi/linux/kfd_ioctl.h>
enum hqd_dequeue_request_type {
NO_ACTION = 0,
DRAIN_PIPE,
RESET_WAVES,
SAVE_WAVES
};
static void lock_srbm(struct amdgpu_device *adev, uint32_t mec, uint32_t pipe,
uint32_t queue, uint32_t vmid)
{
mutex_lock(&adev->srbm_mutex);
nv_grbm_select(adev, mec, pipe, queue, vmid);
}
static void unlock_srbm(struct amdgpu_device *adev)
{
nv_grbm_select(adev, 0, 0, 0, 0);
mutex_unlock(&adev->srbm_mutex);
}
static void acquire_queue(struct amdgpu_device *adev, uint32_t pipe_id,
uint32_t queue_id)
{
uint32_t mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
uint32_t pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
lock_srbm(adev, mec, pipe, queue_id, 0);
}
static uint64_t get_queue_mask(struct amdgpu_device *adev,
uint32_t pipe_id, uint32_t queue_id)
{
unsigned int bit = pipe_id * adev->gfx.mec.num_queue_per_pipe +
queue_id;
return 1ull << bit;
}
static void release_queue(struct amdgpu_device *adev)
{
unlock_srbm(adev);
}
static void kgd_program_sh_mem_settings(struct amdgpu_device *adev, uint32_t vmid,
uint32_t sh_mem_config,
uint32_t sh_mem_ape1_base,
uint32_t sh_mem_ape1_limit,
uint32_t sh_mem_bases, uint32_t inst)
{
lock_srbm(adev, 0, 0, 0, vmid);
WREG32_SOC15(GC, 0, mmSH_MEM_CONFIG, sh_mem_config);
WREG32_SOC15(GC, 0, mmSH_MEM_BASES, sh_mem_bases);
/* APE1 no longer exists on GFX9 */
unlock_srbm(adev);
}
static int kgd_set_pasid_vmid_mapping(struct amdgpu_device *adev, u32 pasid,
unsigned int vmid, uint32_t inst)
{
/*
* We have to assume that there is no outstanding mapping.
* The ATC_VMID_PASID_MAPPING_UPDATE_STATUS bit could be 0 because
* a mapping is in progress or because a mapping finished
* and the SW cleared it.
* So the protocol is to always wait & clear.
*/
uint32_t pasid_mapping = (pasid == 0) ? 0 : (uint32_t)pasid |
ATC_VMID0_PASID_MAPPING__VALID_MASK;
pr_debug("pasid 0x%x vmid %d, reg value %x\n", pasid, vmid, pasid_mapping);
pr_debug("ATHUB, reg %x\n", SOC15_REG_OFFSET(ATHUB, 0, mmATC_VMID0_PASID_MAPPING) + vmid);
WREG32(SOC15_REG_OFFSET(ATHUB, 0, mmATC_VMID0_PASID_MAPPING) + vmid,
pasid_mapping);
#if 0
/* TODO: uncomment this code when the hardware support is ready. */
while (!(RREG32(SOC15_REG_OFFSET(
ATHUB, 0,
mmATC_VMID_PASID_MAPPING_UPDATE_STATUS)) &
(1U << vmid)))
cpu_relax();
pr_debug("ATHUB mapping update finished\n");
WREG32(SOC15_REG_OFFSET(ATHUB, 0,
mmATC_VMID_PASID_MAPPING_UPDATE_STATUS),
1U << vmid);
#endif
/* Mapping vmid to pasid also for IH block */
pr_debug("update mapping for IH block and mmhub");
WREG32(SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT) + vmid,
pasid_mapping);
return 0;
}
/* TODO - RING0 form of field is obsolete, seems to date back to SI
* but still works
*/
static int kgd_init_interrupts(struct amdgpu_device *adev, uint32_t pipe_id,
uint32_t inst)
{
uint32_t mec;
uint32_t pipe;
mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
lock_srbm(adev, mec, pipe, 0, 0);
WREG32_SOC15(GC, 0, mmCPC_INT_CNTL,
CP_INT_CNTL_RING0__TIME_STAMP_INT_ENABLE_MASK |
CP_INT_CNTL_RING0__OPCODE_ERROR_INT_ENABLE_MASK);
unlock_srbm(adev);
return 0;
}
static uint32_t get_sdma_rlc_reg_offset(struct amdgpu_device *adev,
unsigned int engine_id,
unsigned int queue_id)
{
uint32_t sdma_engine_reg_base[2] = {
SOC15_REG_OFFSET(SDMA0, 0,
mmSDMA0_RLC0_RB_CNTL) - mmSDMA0_RLC0_RB_CNTL,
/* On gfx10, mmSDMA1_xxx registers are defined NOT based
* on SDMA1 base address (dw 0x1860) but based on SDMA0
* base address (dw 0x1260). Therefore use mmSDMA0_RLC0_RB_CNTL
* instead of mmSDMA1_RLC0_RB_CNTL for the base address calc
* below
*/
SOC15_REG_OFFSET(SDMA1, 0,
mmSDMA1_RLC0_RB_CNTL) - mmSDMA0_RLC0_RB_CNTL
};
uint32_t retval = sdma_engine_reg_base[engine_id]
+ queue_id * (mmSDMA0_RLC1_RB_CNTL - mmSDMA0_RLC0_RB_CNTL);
pr_debug("RLC register offset for SDMA%d RLC%d: 0x%x\n", engine_id,
queue_id, retval);
return retval;
}
#if 0
static uint32_t get_watch_base_addr(struct amdgpu_device *adev)
{
uint32_t retval = SOC15_REG_OFFSET(GC, 0, mmTCP_WATCH0_ADDR_H) -
mmTCP_WATCH0_ADDR_H;
pr_debug("kfd: reg watch base address: 0x%x\n", retval);
return retval;
}
#endif
static inline struct v10_compute_mqd *get_mqd(void *mqd)
{
return (struct v10_compute_mqd *)mqd;
}
static inline struct v10_sdma_mqd *get_sdma_mqd(void *mqd)
{
return (struct v10_sdma_mqd *)mqd;
}
static int kgd_hqd_load(struct amdgpu_device *adev, void *mqd,
uint32_t pipe_id, uint32_t queue_id,
uint32_t __user *wptr, uint32_t wptr_shift,
uint32_t wptr_mask, struct mm_struct *mm, uint32_t inst)
{
struct v10_compute_mqd *m;
uint32_t *mqd_hqd;
uint32_t reg, hqd_base, data;
m = get_mqd(mqd);
pr_debug("Load hqd of pipe %d queue %d\n", pipe_id, queue_id);
acquire_queue(adev, pipe_id, queue_id);
/* HQD registers extend from CP_MQD_BASE_ADDR to CP_HQD_EOP_WPTR_MEM. */
mqd_hqd = &m->cp_mqd_base_addr_lo;
hqd_base = SOC15_REG_OFFSET(GC, 0, mmCP_MQD_BASE_ADDR);
for (reg = hqd_base;
reg <= SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_WPTR_HI); reg++)
WREG32_SOC15_IP(GC, reg, mqd_hqd[reg - hqd_base]);
/* Activate doorbell logic before triggering WPTR poll. */
data = REG_SET_FIELD(m->cp_hqd_pq_doorbell_control,
CP_HQD_PQ_DOORBELL_CONTROL, DOORBELL_EN, 1);
WREG32_SOC15(GC, 0, mmCP_HQD_PQ_DOORBELL_CONTROL, data);
if (wptr) {
/* Don't read wptr with get_user because the user
* context may not be accessible (if this function
* runs in a work queue). Instead trigger a one-shot
* polling read from memory in the CP. This assumes
* that wptr is GPU-accessible in the queue's VMID via
* ATC or SVM. WPTR==RPTR before starting the poll so
* the CP starts fetching new commands from the right
* place.
*
* Guessing a 64-bit WPTR from a 32-bit RPTR is a bit
* tricky. Assume that the queue didn't overflow. The
* number of valid bits in the 32-bit RPTR depends on
* the queue size. The remaining bits are taken from
* the saved 64-bit WPTR. If the WPTR wrapped, add the
* queue size.
*/
uint32_t queue_size =
2 << REG_GET_FIELD(m->cp_hqd_pq_control,
CP_HQD_PQ_CONTROL, QUEUE_SIZE);
uint64_t guessed_wptr = m->cp_hqd_pq_rptr & (queue_size - 1);
if ((m->cp_hqd_pq_wptr_lo & (queue_size - 1)) < guessed_wptr)
guessed_wptr += queue_size;
guessed_wptr += m->cp_hqd_pq_wptr_lo & ~(queue_size - 1);
guessed_wptr += (uint64_t)m->cp_hqd_pq_wptr_hi << 32;
WREG32_SOC15(GC, 0, mmCP_HQD_PQ_WPTR_LO,
lower_32_bits(guessed_wptr));
WREG32_SOC15(GC, 0, mmCP_HQD_PQ_WPTR_HI,
upper_32_bits(guessed_wptr));
WREG32_SOC15(GC, 0, mmCP_HQD_PQ_WPTR_POLL_ADDR,
lower_32_bits((uint64_t)wptr));
WREG32_SOC15(GC, 0, mmCP_HQD_PQ_WPTR_POLL_ADDR_HI,
upper_32_bits((uint64_t)wptr));
pr_debug("%s setting CP_PQ_WPTR_POLL_CNTL1 to %x\n", __func__,
(uint32_t)get_queue_mask(adev, pipe_id, queue_id));
WREG32_SOC15(GC, 0, mmCP_PQ_WPTR_POLL_CNTL1,
(uint32_t)get_queue_mask(adev, pipe_id, queue_id));
}
/* Start the EOP fetcher */
WREG32_SOC15(GC, 0, mmCP_HQD_EOP_RPTR,
REG_SET_FIELD(m->cp_hqd_eop_rptr,
CP_HQD_EOP_RPTR, INIT_FETCHER, 1));
data = REG_SET_FIELD(m->cp_hqd_active, CP_HQD_ACTIVE, ACTIVE, 1);
WREG32_SOC15(GC, 0, mmCP_HQD_ACTIVE, data);
release_queue(adev);
return 0;
}
static int kgd_hiq_mqd_load(struct amdgpu_device *adev, void *mqd,
uint32_t pipe_id, uint32_t queue_id,
uint32_t doorbell_off, uint32_t inst)
{
struct amdgpu_ring *kiq_ring = &adev->gfx.kiq[0].ring;
struct v10_compute_mqd *m;
uint32_t mec, pipe;
int r;
m = get_mqd(mqd);
acquire_queue(adev, pipe_id, queue_id);
mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
pr_debug("kfd: set HIQ, mec:%d, pipe:%d, queue:%d.\n",
mec, pipe, queue_id);
spin_lock(&adev->gfx.kiq[0].ring_lock);
r = amdgpu_ring_alloc(kiq_ring, 7);
if (r) {
pr_err("Failed to alloc KIQ (%d).\n", r);
goto out_unlock;
}
amdgpu_ring_write(kiq_ring, PACKET3(PACKET3_MAP_QUEUES, 5));
amdgpu_ring_write(kiq_ring,
PACKET3_MAP_QUEUES_QUEUE_SEL(0) | /* Queue_Sel */
PACKET3_MAP_QUEUES_VMID(m->cp_hqd_vmid) | /* VMID */
PACKET3_MAP_QUEUES_QUEUE(queue_id) |
PACKET3_MAP_QUEUES_PIPE(pipe) |
PACKET3_MAP_QUEUES_ME((mec - 1)) |
PACKET3_MAP_QUEUES_QUEUE_TYPE(0) | /*queue_type: normal compute queue */
PACKET3_MAP_QUEUES_ALLOC_FORMAT(0) | /* alloc format: all_on_one_pipe */
PACKET3_MAP_QUEUES_ENGINE_SEL(1) | /* engine_sel: hiq */
PACKET3_MAP_QUEUES_NUM_QUEUES(1)); /* num_queues: must be 1 */
amdgpu_ring_write(kiq_ring,
PACKET3_MAP_QUEUES_DOORBELL_OFFSET(doorbell_off));
amdgpu_ring_write(kiq_ring, m->cp_mqd_base_addr_lo);
amdgpu_ring_write(kiq_ring, m->cp_mqd_base_addr_hi);
amdgpu_ring_write(kiq_ring, m->cp_hqd_pq_wptr_poll_addr_lo);
amdgpu_ring_write(kiq_ring, m->cp_hqd_pq_wptr_poll_addr_hi);
amdgpu_ring_commit(kiq_ring);
out_unlock:
spin_unlock(&adev->gfx.kiq[0].ring_lock);
release_queue(adev);
return r;
}
static int kgd_hqd_dump(struct amdgpu_device *adev,
uint32_t pipe_id, uint32_t queue_id,
uint32_t (**dump)[2], uint32_t *n_regs, uint32_t inst)
{
uint32_t i = 0, reg;
#define HQD_N_REGS 56
#define DUMP_REG(addr) do { \
if (WARN_ON_ONCE(i >= HQD_N_REGS)) \
break; \
(*dump)[i][0] = (addr) << 2; \
(*dump)[i++][1] = RREG32_SOC15_IP(GC, addr); \
} while (0)
*dump = kmalloc(HQD_N_REGS*2*sizeof(uint32_t), GFP_KERNEL);
if (*dump == NULL)
return -ENOMEM;
acquire_queue(adev, pipe_id, queue_id);
for (reg = SOC15_REG_OFFSET(GC, 0, mmCP_MQD_BASE_ADDR);
reg <= SOC15_REG_OFFSET(GC, 0, mmCP_HQD_PQ_WPTR_HI); reg++)
DUMP_REG(reg);
release_queue(adev);
WARN_ON_ONCE(i != HQD_N_REGS);
*n_regs = i;
return 0;
}
static int kgd_hqd_sdma_load(struct amdgpu_device *adev, void *mqd,
uint32_t __user *wptr, struct mm_struct *mm)
{
struct v10_sdma_mqd *m;
uint32_t sdma_rlc_reg_offset;
unsigned long end_jiffies;
uint32_t data;
uint64_t data64;
uint64_t __user *wptr64 = (uint64_t __user *)wptr;
m = get_sdma_mqd(mqd);
sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(adev, m->sdma_engine_id,
m->sdma_queue_id);
WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL,
m->sdmax_rlcx_rb_cntl & (~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK));
end_jiffies = msecs_to_jiffies(2000) + jiffies;
while (true) {
data = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_CONTEXT_STATUS);
if (data & SDMA0_RLC0_CONTEXT_STATUS__IDLE_MASK)
break;
if (time_after(jiffies, end_jiffies)) {
pr_err("SDMA RLC not idle in %s\n", __func__);
return -ETIME;
}
usleep_range(500, 1000);
}
WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_DOORBELL_OFFSET,
m->sdmax_rlcx_doorbell_offset);
data = REG_SET_FIELD(m->sdmax_rlcx_doorbell, SDMA0_RLC0_DOORBELL,
ENABLE, 1);
WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_DOORBELL, data);
WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR,
m->sdmax_rlcx_rb_rptr);
WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR_HI,
m->sdmax_rlcx_rb_rptr_hi);
WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_MINOR_PTR_UPDATE, 1);
if (read_user_wptr(mm, wptr64, data64)) {
WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_WPTR,
lower_32_bits(data64));
WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_WPTR_HI,
upper_32_bits(data64));
} else {
WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_WPTR,
m->sdmax_rlcx_rb_rptr);
WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_WPTR_HI,
m->sdmax_rlcx_rb_rptr_hi);
}
WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_MINOR_PTR_UPDATE, 0);
WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_BASE, m->sdmax_rlcx_rb_base);
WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_BASE_HI,
m->sdmax_rlcx_rb_base_hi);
WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR_ADDR_LO,
m->sdmax_rlcx_rb_rptr_addr_lo);
WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR_ADDR_HI,
m->sdmax_rlcx_rb_rptr_addr_hi);
data = REG_SET_FIELD(m->sdmax_rlcx_rb_cntl, SDMA0_RLC0_RB_CNTL,
RB_ENABLE, 1);
WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL, data);
return 0;
}
static int kgd_hqd_sdma_dump(struct amdgpu_device *adev,
uint32_t engine_id, uint32_t queue_id,
uint32_t (**dump)[2], uint32_t *n_regs)
{
uint32_t sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(adev,
engine_id, queue_id);
uint32_t i = 0, reg;
#undef HQD_N_REGS
#define HQD_N_REGS (19+6+7+10)
*dump = kmalloc(HQD_N_REGS*2*sizeof(uint32_t), GFP_KERNEL);
if (*dump == NULL)
return -ENOMEM;
for (reg = mmSDMA0_RLC0_RB_CNTL; reg <= mmSDMA0_RLC0_DOORBELL; reg++)
DUMP_REG(sdma_rlc_reg_offset + reg);
for (reg = mmSDMA0_RLC0_STATUS; reg <= mmSDMA0_RLC0_CSA_ADDR_HI; reg++)
DUMP_REG(sdma_rlc_reg_offset + reg);
for (reg = mmSDMA0_RLC0_IB_SUB_REMAIN;
reg <= mmSDMA0_RLC0_MINOR_PTR_UPDATE; reg++)
DUMP_REG(sdma_rlc_reg_offset + reg);
for (reg = mmSDMA0_RLC0_MIDCMD_DATA0;
reg <= mmSDMA0_RLC0_MIDCMD_CNTL; reg++)
DUMP_REG(sdma_rlc_reg_offset + reg);
WARN_ON_ONCE(i != HQD_N_REGS);
*n_regs = i;
return 0;
}
static bool kgd_hqd_is_occupied(struct amdgpu_device *adev,
uint64_t queue_address, uint32_t pipe_id,
uint32_t queue_id, uint32_t inst)
{
uint32_t act;
bool retval = false;
uint32_t low, high;
acquire_queue(adev, pipe_id, queue_id);
act = RREG32_SOC15(GC, 0, mmCP_HQD_ACTIVE);
if (act) {
low = lower_32_bits(queue_address >> 8);
high = upper_32_bits(queue_address >> 8);
if (low == RREG32_SOC15(GC, 0, mmCP_HQD_PQ_BASE) &&
high == RREG32_SOC15(GC, 0, mmCP_HQD_PQ_BASE_HI))
retval = true;
}
release_queue(adev);
return retval;
}
static bool kgd_hqd_sdma_is_occupied(struct amdgpu_device *adev, void *mqd)
{
struct v10_sdma_mqd *m;
uint32_t sdma_rlc_reg_offset;
uint32_t sdma_rlc_rb_cntl;
m = get_sdma_mqd(mqd);
sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(adev, m->sdma_engine_id,
m->sdma_queue_id);
sdma_rlc_rb_cntl = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL);
if (sdma_rlc_rb_cntl & SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK)
return true;
return false;
}
static int kgd_hqd_destroy(struct amdgpu_device *adev, void *mqd,
enum kfd_preempt_type reset_type,
unsigned int utimeout, uint32_t pipe_id,
uint32_t queue_id, uint32_t inst)
{
enum hqd_dequeue_request_type type;
unsigned long end_jiffies;
uint32_t temp;
struct v10_compute_mqd *m = get_mqd(mqd);
if (amdgpu_in_reset(adev))
return -EIO;
#if 0
unsigned long flags;
int retry;
#endif
acquire_queue(adev, pipe_id, queue_id);
if (m->cp_hqd_vmid == 0)
WREG32_FIELD15(GC, 0, RLC_CP_SCHEDULERS, scheduler1, 0);
switch (reset_type) {
case KFD_PREEMPT_TYPE_WAVEFRONT_DRAIN:
type = DRAIN_PIPE;
break;
case KFD_PREEMPT_TYPE_WAVEFRONT_RESET:
type = RESET_WAVES;
break;
case KFD_PREEMPT_TYPE_WAVEFRONT_SAVE:
type = SAVE_WAVES;
break;
default:
type = DRAIN_PIPE;
break;
}
#if 0 /* Is this still needed? */
/* Workaround: If IQ timer is active and the wait time is close to or
* equal to 0, dequeueing is not safe. Wait until either the wait time
* is larger or timer is cleared. Also, ensure that IQ_REQ_PEND is
* cleared before continuing. Also, ensure wait times are set to at
* least 0x3.
*/
local_irq_save(flags);
preempt_disable();
retry = 5000; /* wait for 500 usecs at maximum */
while (true) {
temp = RREG32(mmCP_HQD_IQ_TIMER);
if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, PROCESSING_IQ)) {
pr_debug("HW is processing IQ\n");
goto loop;
}
if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, ACTIVE)) {
if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, RETRY_TYPE)
== 3) /* SEM-rearm is safe */
break;
/* Wait time 3 is safe for CP, but our MMIO read/write
* time is close to 1 microsecond, so check for 10 to
* leave more buffer room
*/
if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, WAIT_TIME)
>= 10)
break;
pr_debug("IQ timer is active\n");
} else
break;
loop:
if (!retry) {
pr_err("CP HQD IQ timer status time out\n");
break;
}
ndelay(100);
--retry;
}
retry = 1000;
while (true) {
temp = RREG32(mmCP_HQD_DEQUEUE_REQUEST);
if (!(temp & CP_HQD_DEQUEUE_REQUEST__IQ_REQ_PEND_MASK))
break;
pr_debug("Dequeue request is pending\n");
if (!retry) {
pr_err("CP HQD dequeue request time out\n");
break;
}
ndelay(100);
--retry;
}
local_irq_restore(flags);
preempt_enable();
#endif
WREG32_SOC15(GC, 0, mmCP_HQD_DEQUEUE_REQUEST, type);
end_jiffies = (utimeout * HZ / 1000) + jiffies;
while (true) {
temp = RREG32_SOC15(GC, 0, mmCP_HQD_ACTIVE);
if (!(temp & CP_HQD_ACTIVE__ACTIVE_MASK))
break;
if (time_after(jiffies, end_jiffies)) {
pr_err("cp queue preemption time out.\n");
release_queue(adev);
return -ETIME;
}
usleep_range(500, 1000);
}
release_queue(adev);
return 0;
}
static int kgd_hqd_sdma_destroy(struct amdgpu_device *adev, void *mqd,
unsigned int utimeout)
{
struct v10_sdma_mqd *m;
uint32_t sdma_rlc_reg_offset;
uint32_t temp;
unsigned long end_jiffies = (utimeout * HZ / 1000) + jiffies;
m = get_sdma_mqd(mqd);
sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(adev, m->sdma_engine_id,
m->sdma_queue_id);
temp = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL);
temp = temp & ~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK;
WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL, temp);
while (true) {
temp = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_CONTEXT_STATUS);
if (temp & SDMA0_RLC0_CONTEXT_STATUS__IDLE_MASK)
break;
if (time_after(jiffies, end_jiffies)) {
pr_err("SDMA RLC not idle in %s\n", __func__);
return -ETIME;
}
usleep_range(500, 1000);
}
WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_DOORBELL, 0);
WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL,
RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL) |
SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK);
m->sdmax_rlcx_rb_rptr = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR);
m->sdmax_rlcx_rb_rptr_hi =
RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR_HI);
return 0;
}
static bool get_atc_vmid_pasid_mapping_info(struct amdgpu_device *adev,
uint8_t vmid, uint16_t *p_pasid)
{
uint32_t value;
value = RREG32(SOC15_REG_OFFSET(ATHUB, 0, mmATC_VMID0_PASID_MAPPING)
+ vmid);
*p_pasid = value & ATC_VMID0_PASID_MAPPING__PASID_MASK;
return !!(value & ATC_VMID0_PASID_MAPPING__VALID_MASK);
}
static int kgd_wave_control_execute(struct amdgpu_device *adev,
uint32_t gfx_index_val,
uint32_t sq_cmd, uint32_t inst)
{
uint32_t data = 0;
mutex_lock(&adev->grbm_idx_mutex);
WREG32_SOC15(GC, 0, mmGRBM_GFX_INDEX, gfx_index_val);
WREG32_SOC15(GC, 0, mmSQ_CMD, sq_cmd);
data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
INSTANCE_BROADCAST_WRITES, 1);
data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
SA_BROADCAST_WRITES, 1);
data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
SE_BROADCAST_WRITES, 1);
WREG32_SOC15(GC, 0, mmGRBM_GFX_INDEX, data);
mutex_unlock(&adev->grbm_idx_mutex);
return 0;
}
static void set_vm_context_page_table_base(struct amdgpu_device *adev,
uint32_t vmid, uint64_t page_table_base)
{
if (!amdgpu_amdkfd_is_kfd_vmid(adev, vmid)) {
pr_err("trying to set page table base for wrong VMID %u\n",
vmid);
return;
}
/* SDMA is on gfxhub as well for Navi1* series */
adev->gfxhub.funcs->setup_vm_pt_regs(adev, vmid, page_table_base);
}
/*
* GFX10 helper for wave launch stall requirements on debug trap setting.
*
* vmid:
* Target VMID to stall/unstall.
*
* stall:
* 0-unstall wave launch (enable), 1-stall wave launch (disable).
* After wavefront launch has been stalled, allocated waves must drain from
* SPI in order for debug trap settings to take effect on those waves.
* This is roughly a ~3500 clock cycle wait on SPI where a read on
* SPI_GDBG_WAVE_CNTL translates to ~32 clock cycles.
* KGD_GFX_V10_WAVE_LAUNCH_SPI_DRAIN_LATENCY indicates the number of reads required.
*
* NOTE: We can afford to clear the entire STALL_VMID field on unstall
* because current GFX10 chips cannot support multi-process debugging due to
* trap configuration and masking being limited to global scope. Always
* assume single process conditions.
*
*/
#define KGD_GFX_V10_WAVE_LAUNCH_SPI_DRAIN_LATENCY 110
static void kgd_gfx_v10_set_wave_launch_stall(struct amdgpu_device *adev, uint32_t vmid, bool stall)
{
uint32_t data = RREG32(SOC15_REG_OFFSET(GC, 0, mmSPI_GDBG_WAVE_CNTL));
int i;
data = REG_SET_FIELD(data, SPI_GDBG_WAVE_CNTL, STALL_VMID,
stall ? 1 << vmid : 0);
WREG32(SOC15_REG_OFFSET(GC, 0, mmSPI_GDBG_WAVE_CNTL), data);
if (!stall)
return;
for (i = 0; i < KGD_GFX_V10_WAVE_LAUNCH_SPI_DRAIN_LATENCY; i++)
RREG32(SOC15_REG_OFFSET(GC, 0, mmSPI_GDBG_WAVE_CNTL));
}
uint32_t kgd_gfx_v10_enable_debug_trap(struct amdgpu_device *adev,
bool restore_dbg_registers,
uint32_t vmid)
{
mutex_lock(&adev->grbm_idx_mutex);
kgd_gfx_v10_set_wave_launch_stall(adev, vmid, true);
/* assume gfx off is disabled for the debug session if rlc restore not supported. */
if (restore_dbg_registers) {
uint32_t data = 0;
data = REG_SET_FIELD(data, SPI_GDBG_TRAP_CONFIG,
VMID_SEL, 1 << vmid);
data = REG_SET_FIELD(data, SPI_GDBG_TRAP_CONFIG,
TRAP_EN, 1);
WREG32(SOC15_REG_OFFSET(GC, 0, mmSPI_GDBG_TRAP_CONFIG), data);
WREG32(SOC15_REG_OFFSET(GC, 0, mmSPI_GDBG_TRAP_DATA0), 0);
WREG32(SOC15_REG_OFFSET(GC, 0, mmSPI_GDBG_TRAP_DATA1), 0);
kgd_gfx_v10_set_wave_launch_stall(adev, vmid, false);
mutex_unlock(&adev->grbm_idx_mutex);
return 0;
}
WREG32(SOC15_REG_OFFSET(GC, 0, mmSPI_GDBG_TRAP_MASK), 0);
kgd_gfx_v10_set_wave_launch_stall(adev, vmid, false);
mutex_unlock(&adev->grbm_idx_mutex);
return 0;
}
uint32_t kgd_gfx_v10_disable_debug_trap(struct amdgpu_device *adev,
bool keep_trap_enabled,
uint32_t vmid)
{
mutex_lock(&adev->grbm_idx_mutex);
kgd_gfx_v10_set_wave_launch_stall(adev, vmid, true);
WREG32(SOC15_REG_OFFSET(GC, 0, mmSPI_GDBG_TRAP_MASK), 0);
kgd_gfx_v10_set_wave_launch_stall(adev, vmid, false);
mutex_unlock(&adev->grbm_idx_mutex);
return 0;
}
int kgd_gfx_v10_validate_trap_override_request(struct amdgpu_device *adev,
uint32_t trap_override,
uint32_t *trap_mask_supported)
{
*trap_mask_supported &= KFD_DBG_TRAP_MASK_DBG_ADDRESS_WATCH;
/* The SPI_GDBG_TRAP_MASK register is global and affects all
* processes. Only allow OR-ing the address-watch bit, since
* this only affects processes under the debugger. Other bits
* should stay 0 to avoid the debugger interfering with other
* processes.
*/
if (trap_override != KFD_DBG_TRAP_OVERRIDE_OR)
return -EINVAL;
return 0;
}
uint32_t kgd_gfx_v10_set_wave_launch_trap_override(struct amdgpu_device *adev,
uint32_t vmid,
uint32_t trap_override,
uint32_t trap_mask_bits,
uint32_t trap_mask_request,
uint32_t *trap_mask_prev,
uint32_t kfd_dbg_trap_cntl_prev)
{
uint32_t data, wave_cntl_prev;
mutex_lock(&adev->grbm_idx_mutex);
wave_cntl_prev = RREG32(SOC15_REG_OFFSET(GC, 0, mmSPI_GDBG_WAVE_CNTL));
kgd_gfx_v10_set_wave_launch_stall(adev, vmid, true);
data = RREG32(SOC15_REG_OFFSET(GC, 0, mmSPI_GDBG_TRAP_MASK));
*trap_mask_prev = REG_GET_FIELD(data, SPI_GDBG_TRAP_MASK, EXCP_EN);
trap_mask_bits = (trap_mask_bits & trap_mask_request) |
(*trap_mask_prev & ~trap_mask_request);
data = REG_SET_FIELD(data, SPI_GDBG_TRAP_MASK, EXCP_EN, trap_mask_bits);
data = REG_SET_FIELD(data, SPI_GDBG_TRAP_MASK, REPLACE, trap_override);
WREG32(SOC15_REG_OFFSET(GC, 0, mmSPI_GDBG_TRAP_MASK), data);
/* We need to preserve wave launch mode stall settings. */
WREG32(SOC15_REG_OFFSET(GC, 0, mmSPI_GDBG_WAVE_CNTL), wave_cntl_prev);
mutex_unlock(&adev->grbm_idx_mutex);
return 0;
}
uint32_t kgd_gfx_v10_set_wave_launch_mode(struct amdgpu_device *adev,
uint8_t wave_launch_mode,
uint32_t vmid)
{
uint32_t data = 0;
bool is_mode_set = !!wave_launch_mode;
mutex_lock(&adev->grbm_idx_mutex);
kgd_gfx_v10_set_wave_launch_stall(adev, vmid, true);
data = REG_SET_FIELD(data, SPI_GDBG_WAVE_CNTL2,
VMID_MASK, is_mode_set ? 1 << vmid : 0);
data = REG_SET_FIELD(data, SPI_GDBG_WAVE_CNTL2,
MODE, is_mode_set ? wave_launch_mode : 0);
WREG32(SOC15_REG_OFFSET(GC, 0, mmSPI_GDBG_WAVE_CNTL2), data);
kgd_gfx_v10_set_wave_launch_stall(adev, vmid, false);
mutex_unlock(&adev->grbm_idx_mutex);
return 0;
}
#define TCP_WATCH_STRIDE (mmTCP_WATCH1_ADDR_H - mmTCP_WATCH0_ADDR_H)
#define SQ_WATCH_STRIDE (mmSQ_WATCH1_ADDR_H - mmSQ_WATCH0_ADDR_H)
uint32_t kgd_gfx_v10_set_address_watch(struct amdgpu_device *adev,
uint64_t watch_address,
uint32_t watch_address_mask,
uint32_t watch_id,
uint32_t watch_mode,
uint32_t debug_vmid,
uint32_t inst)
{
/* SQ_WATCH?_ADDR_* and TCP_WATCH?_ADDR_* are programmed with the
* same values.
*/
uint32_t watch_address_high;
uint32_t watch_address_low;
uint32_t tcp_watch_address_cntl;
uint32_t sq_watch_address_cntl;
watch_address_low = lower_32_bits(watch_address);
watch_address_high = upper_32_bits(watch_address) & 0xffff;
tcp_watch_address_cntl = 0;
tcp_watch_address_cntl = REG_SET_FIELD(tcp_watch_address_cntl,
TCP_WATCH0_CNTL,
VMID,
debug_vmid);
tcp_watch_address_cntl = REG_SET_FIELD(tcp_watch_address_cntl,
TCP_WATCH0_CNTL,
MODE,
watch_mode);
tcp_watch_address_cntl = REG_SET_FIELD(tcp_watch_address_cntl,
TCP_WATCH0_CNTL,
MASK,
watch_address_mask >> 7);
sq_watch_address_cntl = 0;
sq_watch_address_cntl = REG_SET_FIELD(sq_watch_address_cntl,
SQ_WATCH0_CNTL,
VMID,
debug_vmid);
sq_watch_address_cntl = REG_SET_FIELD(sq_watch_address_cntl,
SQ_WATCH0_CNTL,
MODE,
watch_mode);
sq_watch_address_cntl = REG_SET_FIELD(sq_watch_address_cntl,
SQ_WATCH0_CNTL,
MASK,
watch_address_mask >> 6);
/* Turning off this watch point until we set all the registers */
tcp_watch_address_cntl = REG_SET_FIELD(tcp_watch_address_cntl,
TCP_WATCH0_CNTL,
VALID,
0);
WREG32((SOC15_REG_OFFSET(GC, 0, mmTCP_WATCH0_CNTL) +
(watch_id * TCP_WATCH_STRIDE)),
tcp_watch_address_cntl);
sq_watch_address_cntl = REG_SET_FIELD(sq_watch_address_cntl,
SQ_WATCH0_CNTL,
VALID,
0);
WREG32((SOC15_REG_OFFSET(GC, 0, mmSQ_WATCH0_CNTL) +
(watch_id * SQ_WATCH_STRIDE)),
sq_watch_address_cntl);
/* Program {TCP,SQ}_WATCH?_ADDR* */
WREG32((SOC15_REG_OFFSET(GC, 0, mmTCP_WATCH0_ADDR_H) +
(watch_id * TCP_WATCH_STRIDE)),
watch_address_high);
WREG32((SOC15_REG_OFFSET(GC, 0, mmTCP_WATCH0_ADDR_L) +
(watch_id * TCP_WATCH_STRIDE)),
watch_address_low);
WREG32((SOC15_REG_OFFSET(GC, 0, mmSQ_WATCH0_ADDR_H) +
(watch_id * SQ_WATCH_STRIDE)),
watch_address_high);
WREG32((SOC15_REG_OFFSET(GC, 0, mmSQ_WATCH0_ADDR_L) +
(watch_id * SQ_WATCH_STRIDE)),
watch_address_low);
/* Enable the watch point */
tcp_watch_address_cntl = REG_SET_FIELD(tcp_watch_address_cntl,
TCP_WATCH0_CNTL,
VALID,
1);
WREG32((SOC15_REG_OFFSET(GC, 0, mmTCP_WATCH0_CNTL) +
(watch_id * TCP_WATCH_STRIDE)),
tcp_watch_address_cntl);
sq_watch_address_cntl = REG_SET_FIELD(sq_watch_address_cntl,
SQ_WATCH0_CNTL,
VALID,
1);
WREG32((SOC15_REG_OFFSET(GC, 0, mmSQ_WATCH0_CNTL) +
(watch_id * SQ_WATCH_STRIDE)),
sq_watch_address_cntl);
return 0;
}
uint32_t kgd_gfx_v10_clear_address_watch(struct amdgpu_device *adev,
uint32_t watch_id)
{
uint32_t watch_address_cntl;
watch_address_cntl = 0;
WREG32((SOC15_REG_OFFSET(GC, 0, mmTCP_WATCH0_CNTL) +
(watch_id * TCP_WATCH_STRIDE)),
watch_address_cntl);
WREG32((SOC15_REG_OFFSET(GC, 0, mmSQ_WATCH0_CNTL) +
(watch_id * SQ_WATCH_STRIDE)),
watch_address_cntl);
return 0;
}
#undef TCP_WATCH_STRIDE
#undef SQ_WATCH_STRIDE
/* kgd_gfx_v10_get_iq_wait_times: Returns the mmCP_IQ_WAIT_TIME1/2 values
* The values read are:
* ib_offload_wait_time -- Wait Count for Indirect Buffer Offloads.
* atomic_offload_wait_time -- Wait Count for L2 and GDS Atomics Offloads.
* wrm_offload_wait_time -- Wait Count for WAIT_REG_MEM Offloads.
* gws_wait_time -- Wait Count for Global Wave Syncs.
* que_sleep_wait_time -- Wait Count for Dequeue Retry.
* sch_wave_wait_time -- Wait Count for Scheduling Wave Message.
* sem_rearm_wait_time -- Wait Count for Semaphore re-arm.
* deq_retry_wait_time -- Wait Count for Global Wave Syncs.
*/
void kgd_gfx_v10_get_iq_wait_times(struct amdgpu_device *adev,
uint32_t *wait_times,
uint32_t inst)
{
*wait_times = RREG32(SOC15_REG_OFFSET(GC, 0, mmCP_IQ_WAIT_TIME2));
}
void kgd_gfx_v10_build_grace_period_packet_info(struct amdgpu_device *adev,
uint32_t wait_times,
uint32_t grace_period,
uint32_t *reg_offset,
uint32_t *reg_data)
{
*reg_data = wait_times;
/*
* The CP cannont handle a 0 grace period input and will result in
* an infinite grace period being set so set to 1 to prevent this.
*/
if (grace_period == 0)
grace_period = 1;
*reg_data = REG_SET_FIELD(*reg_data,
CP_IQ_WAIT_TIME2,
SCH_WAVE,
grace_period);
*reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_IQ_WAIT_TIME2);
}
static void program_trap_handler_settings(struct amdgpu_device *adev,
uint32_t vmid, uint64_t tba_addr, uint64_t tma_addr,
uint32_t inst)
{
lock_srbm(adev, 0, 0, 0, vmid);
/*
* Program TBA registers
*/
WREG32(SOC15_REG_OFFSET(GC, 0, mmSQ_SHADER_TBA_LO),
lower_32_bits(tba_addr >> 8));
WREG32(SOC15_REG_OFFSET(GC, 0, mmSQ_SHADER_TBA_HI),
upper_32_bits(tba_addr >> 8) |
(1 << SQ_SHADER_TBA_HI__TRAP_EN__SHIFT));
/*
* Program TMA registers
*/
WREG32(SOC15_REG_OFFSET(GC, 0, mmSQ_SHADER_TMA_LO),
lower_32_bits(tma_addr >> 8));
WREG32(SOC15_REG_OFFSET(GC, 0, mmSQ_SHADER_TMA_HI),
upper_32_bits(tma_addr >> 8));
unlock_srbm(adev);
}
const struct kfd2kgd_calls gfx_v10_kfd2kgd = {
.program_sh_mem_settings = kgd_program_sh_mem_settings,
.set_pasid_vmid_mapping = kgd_set_pasid_vmid_mapping,
.init_interrupts = kgd_init_interrupts,
.hqd_load = kgd_hqd_load,
.hiq_mqd_load = kgd_hiq_mqd_load,
.hqd_sdma_load = kgd_hqd_sdma_load,
.hqd_dump = kgd_hqd_dump,
.hqd_sdma_dump = kgd_hqd_sdma_dump,
.hqd_is_occupied = kgd_hqd_is_occupied,
.hqd_sdma_is_occupied = kgd_hqd_sdma_is_occupied,
.hqd_destroy = kgd_hqd_destroy,
.hqd_sdma_destroy = kgd_hqd_sdma_destroy,
.wave_control_execute = kgd_wave_control_execute,
.get_atc_vmid_pasid_mapping_info =
get_atc_vmid_pasid_mapping_info,
.set_vm_context_page_table_base = set_vm_context_page_table_base,
.enable_debug_trap = kgd_gfx_v10_enable_debug_trap,
.disable_debug_trap = kgd_gfx_v10_disable_debug_trap,
.validate_trap_override_request = kgd_gfx_v10_validate_trap_override_request,
.set_wave_launch_trap_override = kgd_gfx_v10_set_wave_launch_trap_override,
.set_wave_launch_mode = kgd_gfx_v10_set_wave_launch_mode,
.set_address_watch = kgd_gfx_v10_set_address_watch,
.clear_address_watch = kgd_gfx_v10_clear_address_watch,
.get_iq_wait_times = kgd_gfx_v10_get_iq_wait_times,
.build_grace_period_packet_info = kgd_gfx_v10_build_grace_period_packet_info,
.program_trap_handler_settings = program_trap_handler_settings,
};
