leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
35cd2cdadb
linux/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_arcturus.c
Christoph Hellwig 9bf5b9eb23 kernel: move use_mm/unuse_mm to kthread.c 
Patch series "improve use_mm / unuse_mm", v2.

This series improves the use_mm / unuse_mm interface by better documenting
the assumptions, and my taking the set_fs manipulations spread over the
callers into the core API.

This patch (of 3):

Use the proper API instead.

Link: http://lkml.kernel.org/r/20200404094101.672954-1-hch@lst.de

These helpers are only for use with kernel threads, and I will tie them
more into the kthread infrastructure going forward.  Also move the
prototypes to kthread.h - mmu_context.h was a little weird to start with
as it otherwise contains very low-level MM bits.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Tested-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Felipe Balbi <balbi@kernel.org>
Cc: Jason Wang <jasowang@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Zhi Wang <zhi.a.wang@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: http://lkml.kernel.org/r/20200404094101.672954-1-hch@lst.de
Link: http://lkml.kernel.org/r/20200416053158.586887-1-hch@lst.de
Link: http://lkml.kernel.org/r/20200404094101.672954-5-hch@lst.de
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-10 19:14:18 -07:00

324 lines
10 KiB
C
Raw Blame History

/*
* 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 <linux/module.h>
#include <linux/fdtable.h>
#include <linux/uaccess.h>
#include <linux/firmware.h>
#include "amdgpu.h"
#include "amdgpu_amdkfd.h"
#include "sdma0/sdma0_4_2_2_offset.h"
#include "sdma0/sdma0_4_2_2_sh_mask.h"
#include "sdma1/sdma1_4_2_2_offset.h"
#include "sdma1/sdma1_4_2_2_sh_mask.h"
#include "sdma2/sdma2_4_2_2_offset.h"
#include "sdma2/sdma2_4_2_2_sh_mask.h"
#include "sdma3/sdma3_4_2_2_offset.h"
#include "sdma3/sdma3_4_2_2_sh_mask.h"
#include "sdma4/sdma4_4_2_2_offset.h"
#include "sdma4/sdma4_4_2_2_sh_mask.h"
#include "sdma5/sdma5_4_2_2_offset.h"
#include "sdma5/sdma5_4_2_2_sh_mask.h"
#include "sdma6/sdma6_4_2_2_offset.h"
#include "sdma6/sdma6_4_2_2_sh_mask.h"
#include "sdma7/sdma7_4_2_2_offset.h"
#include "sdma7/sdma7_4_2_2_sh_mask.h"
#include "v9_structs.h"
#include "soc15.h"
#include "soc15d.h"
#include "amdgpu_amdkfd_gfx_v9.h"
#include "gfxhub_v1_0.h"
#include "mmhub_v9_4.h"
#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(addr); \
} while (0)
static inline struct amdgpu_device *get_amdgpu_device(struct kgd_dev *kgd)
{
return (struct amdgpu_device *)kgd;
}
static inline struct v9_sdma_mqd *get_sdma_mqd(void *mqd)
{
return (struct v9_sdma_mqd *)mqd;
}
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 = 0;
uint32_t sdma_rlc_reg_offset;
switch (engine_id) {
default:
dev_warn(adev->dev,
"Invalid sdma engine id (%d), using engine id 0\n",
engine_id);
fallthrough;
case 0:
sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA0, 0,
mmSDMA0_RLC0_RB_CNTL) - mmSDMA0_RLC0_RB_CNTL;
break;
case 1:
sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA1, 0,
mmSDMA1_RLC0_RB_CNTL) - mmSDMA1_RLC0_RB_CNTL;
break;
case 2:
sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA2, 0,
mmSDMA2_RLC0_RB_CNTL) - mmSDMA2_RLC0_RB_CNTL;
break;
case 3:
sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA3, 0,
mmSDMA3_RLC0_RB_CNTL) - mmSDMA3_RLC0_RB_CNTL;
break;
case 4:
sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA4, 0,
mmSDMA4_RLC0_RB_CNTL) - mmSDMA4_RLC0_RB_CNTL;
break;
case 5:
sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA5, 0,
mmSDMA5_RLC0_RB_CNTL) - mmSDMA5_RLC0_RB_CNTL;
break;
case 6:
sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA6, 0,
mmSDMA6_RLC0_RB_CNTL) - mmSDMA6_RLC0_RB_CNTL;
break;
case 7:
sdma_engine_reg_base = SOC15_REG_OFFSET(SDMA7, 0,
mmSDMA7_RLC0_RB_CNTL) - mmSDMA7_RLC0_RB_CNTL;
break;
}
sdma_rlc_reg_offset = sdma_engine_reg_base
+ 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, sdma_rlc_reg_offset);
return sdma_rlc_reg_offset;
}
static int kgd_hqd_sdma_load(struct kgd_dev *kgd, void *mqd,
uint32_t __user *wptr, struct mm_struct *mm)
{
struct amdgpu_device *adev = get_amdgpu_device(kgd);
struct v9_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 kgd_dev *kgd,
uint32_t engine_id, uint32_t queue_id,
uint32_t (**dump)[2], uint32_t *n_regs)
{
struct amdgpu_device *adev = get_amdgpu_device(kgd);
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_array(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_sdma_is_occupied(struct kgd_dev *kgd, void *mqd)
{
struct amdgpu_device *adev = get_amdgpu_device(kgd);
struct v9_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_sdma_destroy(struct kgd_dev *kgd, void *mqd,
unsigned int utimeout)
{
struct amdgpu_device *adev = get_amdgpu_device(kgd);
struct v9_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 void kgd_set_vm_context_page_table_base(struct kgd_dev *kgd, uint32_t vmid,
uint64_t page_table_base)
{
struct amdgpu_device *adev = get_amdgpu_device(kgd);
if (!amdgpu_amdkfd_is_kfd_vmid(adev, vmid)) {
pr_err("trying to set page table base for wrong VMID %u\n",
vmid);
return;
}
mmhub_v9_4_setup_vm_pt_regs(adev, vmid, page_table_base);
gfxhub_v1_0_setup_vm_pt_regs(adev, vmid, page_table_base);
}
const struct kfd2kgd_calls arcturus_kfd2kgd = {
.program_sh_mem_settings = kgd_gfx_v9_program_sh_mem_settings,
.set_pasid_vmid_mapping = kgd_gfx_v9_set_pasid_vmid_mapping,
.init_interrupts = kgd_gfx_v9_init_interrupts,
.hqd_load = kgd_gfx_v9_hqd_load,
.hiq_mqd_load = kgd_gfx_v9_hiq_mqd_load,
.hqd_sdma_load = kgd_hqd_sdma_load,
.hqd_dump = kgd_gfx_v9_hqd_dump,
.hqd_sdma_dump = kgd_hqd_sdma_dump,
.hqd_is_occupied = kgd_gfx_v9_hqd_is_occupied,
.hqd_sdma_is_occupied = kgd_hqd_sdma_is_occupied,
.hqd_destroy = kgd_gfx_v9_hqd_destroy,
.hqd_sdma_destroy = kgd_hqd_sdma_destroy,
.address_watch_disable = kgd_gfx_v9_address_watch_disable,
.address_watch_execute = kgd_gfx_v9_address_watch_execute,
.wave_control_execute = kgd_gfx_v9_wave_control_execute,
.address_watch_get_offset = kgd_gfx_v9_address_watch_get_offset,
.get_atc_vmid_pasid_mapping_info =
kgd_gfx_v9_get_atc_vmid_pasid_mapping_info,
.set_vm_context_page_table_base = kgd_set_vm_context_page_table_base,
.get_hive_id = amdgpu_amdkfd_get_hive_id,
};
Reference in New Issue View Git Blame Copy Permalink