From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 393 ++++++++++++++++++++++++++++++++++++++++++++++++-------
1 files changed, 341 insertions(+), 52 deletions(-)
diff --git a/kernel/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/kernel/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
index 297b36c..8cc51ce 100644
--- a/kernel/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
+++ b/kernel/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
@@ -33,13 +33,17 @@
#include <linux/time.h>
#include <linux/mm.h>
#include <linux/mman.h>
+#include <linux/dma-buf.h>
#include <asm/processor.h>
#include "kfd_priv.h"
#include "kfd_device_queue_manager.h"
#include "kfd_dbgmgr.h"
+#include "amdgpu_amdkfd.h"
+#include "kfd_smi_events.h"
static long kfd_ioctl(struct file *, unsigned int, unsigned long);
static int kfd_open(struct inode *, struct file *);
+static int kfd_release(struct inode *, struct file *);
static int kfd_mmap(struct file *, struct vm_area_struct *);
static const char kfd_dev_name[] = "kfd";
@@ -47,8 +51,9 @@
static const struct file_operations kfd_fops = {
.owner = THIS_MODULE,
.unlocked_ioctl = kfd_ioctl,
- .compat_ioctl = kfd_ioctl,
+ .compat_ioctl = compat_ptr_ioctl,
.open = kfd_open,
+ .release = kfd_release,
.mmap = kfd_mmap,
};
@@ -92,6 +97,7 @@
device_destroy(kfd_class, MKDEV(kfd_char_dev_major, 0));
class_destroy(kfd_class);
unregister_chrdev(kfd_char_dev_major, kfd_dev_name);
+ kfd_device = NULL;
}
struct device *kfd_chardev(void)
@@ -122,11 +128,28 @@
if (IS_ERR(process))
return PTR_ERR(process);
- if (kfd_is_locked())
+ if (kfd_is_locked()) {
+ dev_dbg(kfd_device, "kfd is locked!\n"
+ "process %d unreferenced", process->pasid);
+ kfd_unref_process(process);
return -EAGAIN;
+ }
+
+ /* filep now owns the reference returned by kfd_create_process */
+ filep->private_data = process;
dev_dbg(kfd_device, "process %d opened, compat mode (32 bit) - %d\n",
process->pasid, process->is_32bit_user_mode);
+
+ return 0;
+}
+
+static int kfd_release(struct inode *inode, struct file *filep)
+{
+ struct kfd_process *process = filep->private_data;
+
+ if (process)
+ kfd_unref_process(process);
return 0;
}
@@ -156,8 +179,7 @@
}
if ((args->ring_base_address) &&
- (!access_ok(VERIFY_WRITE,
- (const void __user *) args->ring_base_address,
+ (!access_ok((const void __user *) args->ring_base_address,
sizeof(uint64_t)))) {
pr_err("Can't access ring base address\n");
return -EFAULT;
@@ -168,37 +190,34 @@
return -EINVAL;
}
- if (!access_ok(VERIFY_WRITE,
- (const void __user *) args->read_pointer_address,
+ if (!access_ok((const void __user *) args->read_pointer_address,
sizeof(uint32_t))) {
pr_err("Can't access read pointer\n");
return -EFAULT;
}
- if (!access_ok(VERIFY_WRITE,
- (const void __user *) args->write_pointer_address,
+ if (!access_ok((const void __user *) args->write_pointer_address,
sizeof(uint32_t))) {
pr_err("Can't access write pointer\n");
return -EFAULT;
}
if (args->eop_buffer_address &&
- !access_ok(VERIFY_WRITE,
- (const void __user *) args->eop_buffer_address,
+ !access_ok((const void __user *) args->eop_buffer_address,
sizeof(uint32_t))) {
pr_debug("Can't access eop buffer");
return -EFAULT;
}
if (args->ctx_save_restore_address &&
- !access_ok(VERIFY_WRITE,
- (const void __user *) args->ctx_save_restore_address,
+ !access_ok((const void __user *) args->ctx_save_restore_address,
sizeof(uint32_t))) {
pr_debug("Can't access ctx save restore buffer");
return -EFAULT;
}
q_properties->is_interop = false;
+ q_properties->is_gws = false;
q_properties->queue_percent = args->queue_percentage;
q_properties->priority = args->queue_priority;
q_properties->queue_address = args->ring_base_address;
@@ -216,6 +235,8 @@
q_properties->type = KFD_QUEUE_TYPE_COMPUTE;
else if (args->queue_type == KFD_IOC_QUEUE_TYPE_SDMA)
q_properties->type = KFD_QUEUE_TYPE_SDMA;
+ else if (args->queue_type == KFD_IOC_QUEUE_TYPE_SDMA_XGMI)
+ q_properties->type = KFD_QUEUE_TYPE_SDMA_XGMI;
else
return -ENOTSUPP;
@@ -259,6 +280,7 @@
unsigned int queue_id;
struct kfd_process_device *pdd;
struct queue_properties q_properties;
+ uint32_t doorbell_offset_in_process = 0;
memset(&q_properties, 0, sizeof(struct queue_properties));
@@ -283,11 +305,12 @@
goto err_bind_process;
}
- pr_debug("Creating queue for PASID %d on gpu 0x%x\n",
+ pr_debug("Creating queue for PASID 0x%x on gpu 0x%x\n",
p->pasid,
dev->id);
- err = pqm_create_queue(&p->pqm, dev, filep, &q_properties, &queue_id);
+ err = pqm_create_queue(&p->pqm, dev, filep, &q_properties, &queue_id,
+ &doorbell_offset_in_process);
if (err != 0)
goto err_create_queue;
@@ -297,14 +320,11 @@
/* Return gpu_id as doorbell offset for mmap usage */
args->doorbell_offset = KFD_MMAP_TYPE_DOORBELL;
args->doorbell_offset |= KFD_MMAP_GPU_ID(args->gpu_id);
- args->doorbell_offset <<= PAGE_SHIFT;
if (KFD_IS_SOC15(dev->device_info->asic_family))
- /* On SOC15 ASICs, doorbell allocation must be
- * per-device, and independent from the per-process
- * queue_id. Return the doorbell offset within the
- * doorbell aperture to user mode.
+ /* On SOC15 ASICs, include the doorbell offset within the
+ * process doorbell frame, which is 2 pages.
*/
- args->doorbell_offset |= q_properties.doorbell_off;
+ args->doorbell_offset |= doorbell_offset_in_process;
mutex_unlock(&p->mutex);
@@ -333,7 +353,7 @@
int retval;
struct kfd_ioctl_destroy_queue_args *args = data;
- pr_debug("Destroying queue id %d for pasid %d\n",
+ pr_debug("Destroying queue id %d for pasid 0x%x\n",
args->queue_id,
p->pasid);
@@ -363,8 +383,7 @@
}
if ((args->ring_base_address) &&
- (!access_ok(VERIFY_WRITE,
- (const void __user *) args->ring_base_address,
+ (!access_ok((const void __user *) args->ring_base_address,
sizeof(uint64_t)))) {
pr_err("Can't access ring base address\n");
return -EFAULT;
@@ -380,7 +399,7 @@
properties.queue_percent = args->queue_percentage;
properties.priority = args->queue_priority;
- pr_debug("Updating queue id %d for pasid %d\n",
+ pr_debug("Updating queue id %d for pasid 0x%x\n",
args->queue_id, p->pasid);
mutex_lock(&p->mutex);
@@ -447,6 +466,24 @@
return retval;
}
+static int kfd_ioctl_get_queue_wave_state(struct file *filep,
+ struct kfd_process *p, void *data)
+{
+ struct kfd_ioctl_get_queue_wave_state_args *args = data;
+ int r;
+
+ mutex_lock(&p->mutex);
+
+ r = pqm_get_wave_state(&p->pqm, args->queue_id,
+ (void __user *)args->ctl_stack_address,
+ &args->ctl_stack_used_size,
+ &args->save_area_used_size);
+
+ mutex_unlock(&p->mutex);
+
+ return r;
+}
+
static int kfd_ioctl_set_memory_policy(struct file *filep,
struct kfd_process *p, void *data)
{
@@ -508,7 +545,7 @@
struct kfd_process_device *pdd;
dev = kfd_device_by_id(args->gpu_id);
- if (dev == NULL)
+ if (!dev)
return -EINVAL;
mutex_lock(&p->mutex);
@@ -816,15 +853,14 @@
dev = kfd_device_by_id(args->gpu_id);
if (dev)
/* Reading GPU clock counter from KGD */
- args->gpu_clock_counter =
- dev->kfd2kgd->get_gpu_clock_counter(dev->kgd);
+ args->gpu_clock_counter = amdgpu_amdkfd_get_gpu_clock_counter(dev->kgd);
else
/* Node without GPU resource */
args->gpu_clock_counter = 0;
/* No access to rdtsc. Using raw monotonic time */
args->cpu_clock_counter = ktime_get_raw_ns();
- args->system_clock_counter = ktime_get_boot_ns();
+ args->system_clock_counter = ktime_get_boottime_ns();
/* Since the counter is in nano-seconds we use 1GHz frequency */
args->system_clock_freq = 1000000000;
@@ -840,7 +876,7 @@
struct kfd_process_device_apertures *pAperture;
struct kfd_process_device *pdd;
- dev_dbg(kfd_device, "get apertures for PASID %d", p->pasid);
+ dev_dbg(kfd_device, "get apertures for PASID 0x%x", p->pasid);
args->num_of_nodes = 0;
@@ -898,7 +934,7 @@
uint32_t nodes = 0;
int ret;
- dev_dbg(kfd_device, "get apertures for PASID %d", p->pasid);
+ dev_dbg(kfd_device, "get apertures for PASID 0x%x", p->pasid);
if (args->num_of_nodes == 0) {
/* Return number of nodes, so that user space can alloacate
@@ -1024,7 +1060,7 @@
}
mutex_unlock(&p->mutex);
- err = kfd->kfd2kgd->map_gtt_bo_to_kernel(kfd->kgd,
+ err = amdgpu_amdkfd_gpuvm_map_gtt_bo_to_kernel(kfd->kgd,
mem, &kern_addr, &size);
if (err) {
pr_err("Failed to map event page to kernel\n");
@@ -1113,7 +1149,7 @@
mutex_unlock(&p->mutex);
if (dev->dqm->sched_policy == KFD_SCHED_POLICY_NO_HWS &&
- pdd->qpd.vmid != 0)
+ pdd->qpd.vmid != 0 && dev->kfd2kgd->set_scratch_backing_va)
dev->kfd2kgd->set_scratch_backing_va(
dev->kgd, args->va_addr, pdd->qpd.vmid);
@@ -1136,7 +1172,7 @@
if (!dev)
return -EINVAL;
- dev->kfd2kgd->get_tile_config(dev->kgd, &config);
+ amdgpu_amdkfd_get_tile_config(dev->kgd, &config);
args->gb_addr_config = config.gb_addr_config;
args->num_banks = config.num_banks;
@@ -1210,7 +1246,7 @@
return ret;
}
-static bool kfd_dev_is_large_bar(struct kfd_dev *dev)
+bool kfd_dev_is_large_bar(struct kfd_dev *dev)
{
struct kfd_local_mem_info mem_info;
@@ -1219,10 +1255,10 @@
return true;
}
- if (dev->device_info->needs_iommu_device)
+ if (dev->use_iommu_v2)
return false;
- dev->kfd2kgd->get_local_mem_info(dev->kgd, &mem_info);
+ amdgpu_amdkfd_get_local_mem_info(dev->kgd, &mem_info);
if (mem_info.local_mem_size_private == 0 &&
mem_info.local_mem_size_public > 0)
return true;
@@ -1263,7 +1299,25 @@
goto err_unlock;
}
- err = dev->kfd2kgd->alloc_memory_of_gpu(
+ if (flags & KFD_IOC_ALLOC_MEM_FLAGS_DOORBELL) {
+ if (args->size != kfd_doorbell_process_slice(dev)) {
+ err = -EINVAL;
+ goto err_unlock;
+ }
+ offset = kfd_get_process_doorbells(pdd);
+ } else if (flags & KFD_IOC_ALLOC_MEM_FLAGS_MMIO_REMAP) {
+ if (args->size != PAGE_SIZE) {
+ err = -EINVAL;
+ goto err_unlock;
+ }
+ offset = amdgpu_amdkfd_get_mmio_remap_phys_addr(dev->kgd);
+ if (!offset) {
+ err = -ENOMEM;
+ goto err_unlock;
+ }
+ }
+
+ err = amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu(
dev->kgd, args->va_addr, args->size,
pdd->vm, (struct kgd_mem **) &mem, &offset,
flags);
@@ -1277,15 +1331,26 @@
goto err_free;
}
+ /* Update the VRAM usage count */
+ if (flags & KFD_IOC_ALLOC_MEM_FLAGS_VRAM)
+ WRITE_ONCE(pdd->vram_usage, pdd->vram_usage + args->size);
+
mutex_unlock(&p->mutex);
args->handle = MAKE_HANDLE(args->gpu_id, idr_handle);
args->mmap_offset = offset;
+ /* MMIO is mapped through kfd device
+ * Generate a kfd mmap offset
+ */
+ if (flags & KFD_IOC_ALLOC_MEM_FLAGS_MMIO_REMAP)
+ args->mmap_offset = KFD_MMAP_TYPE_MMIO
+ | KFD_MMAP_GPU_ID(args->gpu_id);
+
return 0;
err_free:
- dev->kfd2kgd->free_memory_of_gpu(dev->kgd, (struct kgd_mem *)mem);
+ amdgpu_amdkfd_gpuvm_free_memory_of_gpu(dev->kgd, (struct kgd_mem *)mem, NULL);
err_unlock:
mutex_unlock(&p->mutex);
return err;
@@ -1299,6 +1364,7 @@
void *mem;
struct kfd_dev *dev;
int ret;
+ uint64_t size = 0;
dev = kfd_device_by_id(GET_GPU_ID(args->handle));
if (!dev)
@@ -1320,7 +1386,8 @@
goto err_unlock;
}
- ret = dev->kfd2kgd->free_memory_of_gpu(dev->kgd, (struct kgd_mem *)mem);
+ ret = amdgpu_amdkfd_gpuvm_free_memory_of_gpu(dev->kgd,
+ (struct kgd_mem *)mem, &size);
/* If freeing the buffer failed, leave the handle in place for
* clean-up during process tear-down.
@@ -1328,6 +1395,8 @@
if (!ret)
kfd_process_device_remove_obj_handle(
pdd, GET_IDR_HANDLE(args->handle));
+
+ WRITE_ONCE(pdd->vram_usage, pdd->vram_usage - size);
err_unlock:
mutex_unlock(&p->mutex);
@@ -1400,7 +1469,7 @@
err = PTR_ERR(peer_pdd);
goto get_mem_obj_from_handle_failed;
}
- err = peer->kfd2kgd->map_memory_to_gpu(
+ err = amdgpu_amdkfd_gpuvm_map_memory_to_gpu(
peer->kgd, (struct kgd_mem *)mem, peer_pdd->vm);
if (err) {
pr_err("Failed to map to gpu %d/%d\n",
@@ -1412,7 +1481,7 @@
mutex_unlock(&p->mutex);
- err = dev->kfd2kgd->sync_memory(dev->kgd, (struct kgd_mem *) mem, true);
+ err = amdgpu_amdkfd_gpuvm_sync_memory(dev->kgd, (struct kgd_mem *) mem, true);
if (err) {
pr_debug("Sync memory failed, wait interrupted by user signal\n");
goto sync_memory_failed;
@@ -1507,7 +1576,7 @@
err = -ENODEV;
goto get_mem_obj_from_handle_failed;
}
- err = dev->kfd2kgd->unmap_memory_to_gpu(
+ err = amdgpu_amdkfd_gpuvm_unmap_memory_from_gpu(
peer->kgd, (struct kgd_mem *)mem, peer_pdd->vm);
if (err) {
pr_err("Failed to unmap from gpu %d/%d\n",
@@ -1529,6 +1598,170 @@
copy_from_user_failed:
kfree(devices_arr);
return err;
+}
+
+static int kfd_ioctl_alloc_queue_gws(struct file *filep,
+ struct kfd_process *p, void *data)
+{
+ int retval;
+ struct kfd_ioctl_alloc_queue_gws_args *args = data;
+ struct queue *q;
+ struct kfd_dev *dev;
+
+ mutex_lock(&p->mutex);
+ q = pqm_get_user_queue(&p->pqm, args->queue_id);
+
+ if (q) {
+ dev = q->device;
+ } else {
+ retval = -EINVAL;
+ goto out_unlock;
+ }
+
+ if (!dev->gws) {
+ retval = -ENODEV;
+ goto out_unlock;
+ }
+
+ if (dev->dqm->sched_policy == KFD_SCHED_POLICY_NO_HWS) {
+ retval = -ENODEV;
+ goto out_unlock;
+ }
+
+ retval = pqm_set_gws(&p->pqm, args->queue_id, args->num_gws ? dev->gws : NULL);
+ mutex_unlock(&p->mutex);
+
+ args->first_gws = 0;
+ return retval;
+
+out_unlock:
+ mutex_unlock(&p->mutex);
+ return retval;
+}
+
+static int kfd_ioctl_get_dmabuf_info(struct file *filep,
+ struct kfd_process *p, void *data)
+{
+ struct kfd_ioctl_get_dmabuf_info_args *args = data;
+ struct kfd_dev *dev = NULL;
+ struct kgd_dev *dma_buf_kgd;
+ void *metadata_buffer = NULL;
+ uint32_t flags;
+ unsigned int i;
+ int r;
+
+ /* Find a KFD GPU device that supports the get_dmabuf_info query */
+ for (i = 0; kfd_topology_enum_kfd_devices(i, &dev) == 0; i++)
+ if (dev)
+ break;
+ if (!dev)
+ return -EINVAL;
+
+ if (args->metadata_ptr) {
+ metadata_buffer = kzalloc(args->metadata_size, GFP_KERNEL);
+ if (!metadata_buffer)
+ return -ENOMEM;
+ }
+
+ /* Get dmabuf info from KGD */
+ r = amdgpu_amdkfd_get_dmabuf_info(dev->kgd, args->dmabuf_fd,
+ &dma_buf_kgd, &args->size,
+ metadata_buffer, args->metadata_size,
+ &args->metadata_size, &flags);
+ if (r)
+ goto exit;
+
+ /* Reverse-lookup gpu_id from kgd pointer */
+ dev = kfd_device_by_kgd(dma_buf_kgd);
+ if (!dev) {
+ r = -EINVAL;
+ goto exit;
+ }
+ args->gpu_id = dev->id;
+ args->flags = flags;
+
+ /* Copy metadata buffer to user mode */
+ if (metadata_buffer) {
+ r = copy_to_user((void __user *)args->metadata_ptr,
+ metadata_buffer, args->metadata_size);
+ if (r != 0)
+ r = -EFAULT;
+ }
+
+exit:
+ kfree(metadata_buffer);
+
+ return r;
+}
+
+static int kfd_ioctl_import_dmabuf(struct file *filep,
+ struct kfd_process *p, void *data)
+{
+ struct kfd_ioctl_import_dmabuf_args *args = data;
+ struct kfd_process_device *pdd;
+ struct dma_buf *dmabuf;
+ struct kfd_dev *dev;
+ int idr_handle;
+ uint64_t size;
+ void *mem;
+ int r;
+
+ dev = kfd_device_by_id(args->gpu_id);
+ if (!dev)
+ return -EINVAL;
+
+ dmabuf = dma_buf_get(args->dmabuf_fd);
+ if (IS_ERR(dmabuf))
+ return PTR_ERR(dmabuf);
+
+ mutex_lock(&p->mutex);
+
+ pdd = kfd_bind_process_to_device(dev, p);
+ if (IS_ERR(pdd)) {
+ r = PTR_ERR(pdd);
+ goto err_unlock;
+ }
+
+ r = amdgpu_amdkfd_gpuvm_import_dmabuf(dev->kgd, dmabuf,
+ args->va_addr, pdd->vm,
+ (struct kgd_mem **)&mem, &size,
+ NULL);
+ if (r)
+ goto err_unlock;
+
+ idr_handle = kfd_process_device_create_obj_handle(pdd, mem);
+ if (idr_handle < 0) {
+ r = -EFAULT;
+ goto err_free;
+ }
+
+ mutex_unlock(&p->mutex);
+ dma_buf_put(dmabuf);
+
+ args->handle = MAKE_HANDLE(args->gpu_id, idr_handle);
+
+ return 0;
+
+err_free:
+ amdgpu_amdkfd_gpuvm_free_memory_of_gpu(dev->kgd, (struct kgd_mem *)mem, NULL);
+err_unlock:
+ mutex_unlock(&p->mutex);
+ dma_buf_put(dmabuf);
+ return r;
+}
+
+/* Handle requests for watching SMI events */
+static int kfd_ioctl_smi_events(struct file *filep,
+ struct kfd_process *p, void *data)
+{
+ struct kfd_ioctl_smi_events_args *args = data;
+ struct kfd_dev *dev;
+
+ dev = kfd_device_by_id(args->gpuid);
+ if (!dev)
+ return -EINVAL;
+
+ return kfd_smi_event_open(dev, &args->anon_fd);
}
#define AMDKFD_IOCTL_DEF(ioctl, _func, _flags) \
@@ -1615,6 +1848,20 @@
AMDKFD_IOCTL_DEF(AMDKFD_IOC_SET_CU_MASK,
kfd_ioctl_set_cu_mask, 0),
+ AMDKFD_IOCTL_DEF(AMDKFD_IOC_GET_QUEUE_WAVE_STATE,
+ kfd_ioctl_get_queue_wave_state, 0),
+
+ AMDKFD_IOCTL_DEF(AMDKFD_IOC_GET_DMABUF_INFO,
+ kfd_ioctl_get_dmabuf_info, 0),
+
+ AMDKFD_IOCTL_DEF(AMDKFD_IOC_IMPORT_DMABUF,
+ kfd_ioctl_import_dmabuf, 0),
+
+ AMDKFD_IOCTL_DEF(AMDKFD_IOC_ALLOC_QUEUE_GWS,
+ kfd_ioctl_alloc_queue_gws, 0),
+
+ AMDKFD_IOCTL_DEF(AMDKFD_IOC_SMI_EVENTS,
+ kfd_ioctl_smi_events, 0),
};
#define AMDKFD_CORE_IOCTL_COUNT ARRAY_SIZE(amdkfd_ioctls)
@@ -1647,11 +1894,16 @@
} else
goto err_i1;
- dev_dbg(kfd_device, "ioctl cmd 0x%x (#%d), arg 0x%lx\n", cmd, nr, arg);
+ dev_dbg(kfd_device, "ioctl cmd 0x%x (#0x%x), arg 0x%lx\n", cmd, nr, arg);
- process = kfd_get_process(current);
- if (IS_ERR(process)) {
- dev_dbg(kfd_device, "no process\n");
+ /* Get the process struct from the filep. Only the process
+ * that opened /dev/kfd can use the file descriptor. Child
+ * processes need to create their own KFD device context.
+ */
+ process = filep->private_data;
+ if (process->lead_thread != current->group_leader) {
+ dev_dbg(kfd_device, "Using KFD FD in wrong process\n");
+ retcode = -EBADF;
goto err_i1;
}
@@ -1702,29 +1954,62 @@
kfree(kdata);
if (retcode)
- dev_dbg(kfd_device, "ret = %d\n", retcode);
+ dev_dbg(kfd_device, "ioctl cmd (#0x%x), arg 0x%lx, ret = %d\n",
+ nr, arg, retcode);
return retcode;
}
+
+static int kfd_mmio_mmap(struct kfd_dev *dev, struct kfd_process *process,
+ struct vm_area_struct *vma)
+{
+ phys_addr_t address;
+ int ret;
+
+ if (vma->vm_end - vma->vm_start != PAGE_SIZE)
+ return -EINVAL;
+
+ address = amdgpu_amdkfd_get_mmio_remap_phys_addr(dev->kgd);
+
+ vma->vm_flags |= VM_IO | VM_DONTCOPY | VM_DONTEXPAND | VM_NORESERVE |
+ VM_DONTDUMP | VM_PFNMAP;
+
+ vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+
+ pr_debug("pasid 0x%x mapping mmio page\n"
+ " target user address == 0x%08llX\n"
+ " physical address == 0x%08llX\n"
+ " vm_flags == 0x%04lX\n"
+ " size == 0x%04lX\n",
+ process->pasid, (unsigned long long) vma->vm_start,
+ address, vma->vm_flags, PAGE_SIZE);
+
+ ret = io_remap_pfn_range(vma,
+ vma->vm_start,
+ address >> PAGE_SHIFT,
+ PAGE_SIZE,
+ vma->vm_page_prot);
+ return ret;
+}
+
static int kfd_mmap(struct file *filp, struct vm_area_struct *vma)
{
struct kfd_process *process;
struct kfd_dev *dev = NULL;
- unsigned long vm_pgoff;
+ unsigned long mmap_offset;
unsigned int gpu_id;
process = kfd_get_process(current);
if (IS_ERR(process))
return PTR_ERR(process);
- vm_pgoff = vma->vm_pgoff;
- vma->vm_pgoff = KFD_MMAP_OFFSET_VALUE_GET(vm_pgoff);
- gpu_id = KFD_MMAP_GPU_ID_GET(vm_pgoff);
+ mmap_offset = vma->vm_pgoff << PAGE_SHIFT;
+ gpu_id = KFD_MMAP_GET_GPU_ID(mmap_offset);
if (gpu_id)
dev = kfd_device_by_id(gpu_id);
- switch (vm_pgoff & KFD_MMAP_TYPE_MASK) {
+ switch (mmap_offset & KFD_MMAP_TYPE_MASK) {
case KFD_MMAP_TYPE_DOORBELL:
if (!dev)
return -ENODEV;
@@ -1737,6 +2022,10 @@
if (!dev)
return -ENODEV;
return kfd_reserved_mem_mmap(dev, process, vma);
+ case KFD_MMAP_TYPE_MMIO:
+ if (!dev)
+ return -ENODEV;
+ return kfd_mmio_mmap(dev, process, vma);
}
return -EFAULT;
--
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