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gpu: nvgpu: move ctrl priv tracking to struct nvgpu_os_linux

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Move ctrl node priv tracking variables from struct nvgpu_os_linux.ctrl
to struct nvgpu_os_linux.
This will unblock dev node creation without using the static data
structures in struct nvgpu_os_linux.

Jira NVGPU-5648

Change-Id: I57db0c601282534e6e2ea535d3ca27934f86fc2a
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2428499
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
This commit is contained in:
Deepak Nibade
2020-10-14 16:07:27 +05:30
committed by Alex Waterman
parent 2a6c473fe6
commit 9082bcf3bd
4 changed files with 21 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/nvgpu/os/linux/driver_common.c
View File

@@ -78,8 +78,8 @@ static void nvgpu_init_vars(struct gk20a *g)
/* Init the clock req count to 0 */
nvgpu_atomic_set(&g->clk_arb_global_nr, 0);
nvgpu_mutex_init(&l->ctrl.privs_lock);
nvgpu_init_list_node(&l->ctrl.privs);
nvgpu_mutex_init(&l->ctrl_privs_lock);
nvgpu_init_list_node(&l->ctrl_privs);
l->regs_saved = l->regs;
l->bar1_saved = l->bar1;

24
drivers/gpu/nvgpu/os/linux/ioctl_ctrl.c
View File

@@ -147,9 +147,9 @@ free_ref:
if (priv)
nvgpu_kfree(g, priv);
} else {
nvgpu_mutex_acquire(&l->ctrl.privs_lock);
nvgpu_list_add(&priv->list, &l->ctrl.privs);
nvgpu_mutex_release(&l->ctrl.privs_lock);
nvgpu_mutex_acquire(&l->ctrl_privs_lock);
nvgpu_list_add(&priv->list, &l->ctrl_privs);
nvgpu_mutex_release(&l->ctrl_privs_lock);
}
return err;
@@ -162,9 +162,9 @@ int gk20a_ctrl_dev_release(struct inode *inode, struct file *filp)
nvgpu_log_fn(g, " ");
nvgpu_mutex_acquire(&l->ctrl.privs_lock);
nvgpu_mutex_acquire(&l->ctrl_privs_lock);
nvgpu_list_del(&priv->list);
nvgpu_mutex_release(&l->ctrl.privs_lock);
nvgpu_mutex_release(&l->ctrl_privs_lock);
if (priv->clk_session)
nvgpu_clk_arb_release_session(g, priv->clk_session);
@@ -2108,10 +2108,10 @@ static void usermode_vma_close(struct vm_area_struct *vma)
struct gk20a *g = priv->g;
struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g);
nvgpu_mutex_acquire(&l->ctrl.privs_lock);
nvgpu_mutex_acquire(&l->ctrl_privs_lock);
priv->usermode_vma.vma = NULL;
priv->usermode_vma.vma_mapped = false;
nvgpu_mutex_release(&l->ctrl.privs_lock);
nvgpu_mutex_release(&l->ctrl_privs_lock);
}
struct vm_operations_struct usermode_vma_ops = {
@@ -2144,7 +2144,7 @@ int gk20a_ctrl_dev_mmap(struct file *filp, struct vm_area_struct *vma)
return err;
}
nvgpu_mutex_acquire(&l->ctrl.privs_lock);
nvgpu_mutex_acquire(&l->ctrl_privs_lock);
vma->vm_flags |= VM_IO | VM_DONTCOPY | VM_DONTEXPAND | VM_NORESERVE |
VM_DONTDUMP | VM_PFNMAP;
@@ -2160,7 +2160,7 @@ int gk20a_ctrl_dev_mmap(struct file *filp, struct vm_area_struct *vma)
vma->vm_private_data = priv;
priv->usermode_vma.vma_mapped = true;
}
nvgpu_mutex_release(&l->ctrl.privs_lock);
nvgpu_mutex_release(&l->ctrl_privs_lock);
gk20a_idle(g);
@@ -2231,12 +2231,12 @@ static void alter_usermode_mappings(struct gk20a *g, bool poweroff)
struct gk20a_ctrl_priv *priv;
struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g);
nvgpu_mutex_acquire(&l->ctrl.privs_lock);
nvgpu_list_for_each_entry(priv, &l->ctrl.privs,
nvgpu_mutex_acquire(&l->ctrl_privs_lock);
nvgpu_list_for_each_entry(priv, &l->ctrl_privs,
gk20a_ctrl_priv, list) {
alter_usermode_mapping(g, priv, poweroff);
}
nvgpu_mutex_release(&l->ctrl.privs_lock);
nvgpu_mutex_release(&l->ctrl_privs_lock);
}
void nvgpu_hide_usermode_for_poweroff(struct gk20a *g)

9
drivers/gpu/nvgpu/os/linux/os_linux.h
View File

@@ -88,10 +88,6 @@ struct nvgpu_os_linux {
struct {
struct cdev cdev;
struct device *node;
/* see gk20a_ctrl_priv */
struct nvgpu_list_node privs;
/* guards modifications to the list and its contents */
struct nvgpu_mutex privs_lock;
} ctrl;
struct {
@@ -136,6 +132,11 @@ struct nvgpu_os_linux {
dev_t cdev_region;
/* see gk20a_ctrl_priv */
struct nvgpu_list_node ctrl_privs;
/* guards modifications to the list and its contents */
struct nvgpu_mutex ctrl_privs_lock;
struct devfreq *devfreq;
struct device_dma_parameters dma_parms;

4
drivers/gpu/nvgpu/os/linux/vgpu/vgpu_linux.c
View File

@@ -97,8 +97,8 @@ static void vgpu_init_vars(struct gk20a *g, struct gk20a_platform *platform)
nvgpu_mutex_init(&priv->vgpu_clk_get_freq_lock);
nvgpu_mutex_init(&l->ctrl.privs_lock);
nvgpu_init_list_node(&l->ctrl.privs);
nvgpu_mutex_init(&l->ctrl_privs_lock);
nvgpu_init_list_node(&l->ctrl_privs);
l->regs_saved = l->regs;
l->bar1_saved = l->bar1;