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gpu: nvgpu: Add CHANNEL_SETUP_BIND IOCTL

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For a long time now, the ALLOC_GPFIFO_EX channel IOCTL has done much
more than just gpfifo allocation, and its signature does not match
support that's needed soon. Add a new one called SETUP_BIND to hopefully
cover our future needs and deprecate ALLOC_GPFIFO_EX.

Change nvgpu internals to match this new naming as well.

Bug 200145225
Bug 200541476

Change-Id: I766f9283a064e140656f6004b2b766db70bd6cad
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1835186
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
(cherry-picked from e0c8a16c8d
in dev-main)
Reviewed-on: https://git-master.nvidia.com/r/2169882
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Debarshi Dutta
2019-08-07 11:57:28 +05:30
committed by mobile promotions
parent ae175e45ed
commit 58ee7561f7
8 changed files with 128 additions and 77 deletions
Download Patch File Download Diff File Expand all files Collapse all files

86
drivers/gpu/nvgpu/os/linux/ioctl_channel.c
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@@ -577,45 +577,59 @@ clean_up:
return err;
}
static u32 nvgpu_gpfifo_user_flags_to_common_flags(u32 user_flags)
static u32 nvgpu_setup_bind_user_flags_to_common_flags(u32 user_flags)
{
u32 flags = 0;
if (user_flags & NVGPU_ALLOC_GPFIFO_EX_FLAGS_VPR_ENABLED)
flags |= NVGPU_GPFIFO_FLAGS_SUPPORT_VPR;
if (user_flags & NVGPU_CHANNEL_SETUP_BIND_FLAGS_VPR_ENABLED)
flags |= NVGPU_SETUP_BIND_FLAGS_SUPPORT_VPR;
if (user_flags & NVGPU_ALLOC_GPFIFO_EX_FLAGS_DETERMINISTIC)
flags |= NVGPU_GPFIFO_FLAGS_SUPPORT_DETERMINISTIC;
if (user_flags & NVGPU_CHANNEL_SETUP_BIND_FLAGS_DETERMINISTIC)
flags |= NVGPU_SETUP_BIND_FLAGS_SUPPORT_DETERMINISTIC;
if (user_flags & NVGPU_ALLOC_GPFIFO_FLAGS_REPLAYABLE_FAULTS_ENABLE)
flags |= NVGPU_GPFIFO_FLAGS_REPLAYABLE_FAULTS_ENABLE;
if (user_flags & NVGPU_CHANNEL_SETUP_BIND_FLAGS_REPLAYABLE_FAULTS_ENABLE)
flags |= NVGPU_SETUP_BIND_FLAGS_REPLAYABLE_FAULTS_ENABLE;
return flags;
}
static void nvgpu_get_setup_bind_args(
struct nvgpu_channel_setup_bind_args *channel_setup_bind_args,
struct nvgpu_setup_bind_args *setup_bind_args)
{
setup_bind_args->num_gpfifo_entries =
channel_setup_bind_args->num_gpfifo_entries;
setup_bind_args->num_inflight_jobs =
channel_setup_bind_args->num_inflight_jobs;
setup_bind_args->flags = nvgpu_setup_bind_user_flags_to_common_flags(
channel_setup_bind_args->flags);
}
static void nvgpu_get_gpfifo_ex_args(
struct nvgpu_alloc_gpfifo_ex_args *alloc_gpfifo_ex_args,
struct nvgpu_gpfifo_args *gpfifo_args)
struct nvgpu_setup_bind_args *setup_bind_args)
{
gpfifo_args->num_entries = alloc_gpfifo_ex_args->num_entries;
gpfifo_args->num_inflight_jobs = alloc_gpfifo_ex_args->num_inflight_jobs;
gpfifo_args->flags = nvgpu_gpfifo_user_flags_to_common_flags(
alloc_gpfifo_ex_args->flags);
setup_bind_args->num_gpfifo_entries = alloc_gpfifo_ex_args->num_entries;
setup_bind_args->num_inflight_jobs =
alloc_gpfifo_ex_args->num_inflight_jobs;
setup_bind_args->flags = nvgpu_setup_bind_user_flags_to_common_flags(
alloc_gpfifo_ex_args->flags);
}
static void nvgpu_get_gpfifo_args(
struct nvgpu_alloc_gpfifo_args *alloc_gpfifo_args,
struct nvgpu_gpfifo_args *gpfifo_args)
struct nvgpu_setup_bind_args *setup_bind_args)
{
/*
* Kernel can insert one extra gpfifo entry before user
* submitted gpfifos and another one after, for internal usage.
* Triple the requested size.
*/
gpfifo_args->num_entries = alloc_gpfifo_args->num_entries * 3;
gpfifo_args->num_inflight_jobs = 0;
gpfifo_args->flags = nvgpu_gpfifo_user_flags_to_common_flags(
alloc_gpfifo_args->flags);
setup_bind_args->num_gpfifo_entries =
alloc_gpfifo_args->num_entries * 3;
setup_bind_args->num_inflight_jobs = 0;
setup_bind_args->flags = nvgpu_setup_bind_user_flags_to_common_flags(
alloc_gpfifo_args->flags);
}
static void nvgpu_get_fence_args(
@@ -1119,13 +1133,39 @@ long gk20a_channel_ioctl(struct file *filp,
gk20a_idle(ch->g);
break;
}
case NVGPU_IOCTL_CHANNEL_SETUP_BIND:
{
struct nvgpu_channel_setup_bind_args *channel_setup_bind_args =
(struct nvgpu_channel_setup_bind_args *)buf;
struct nvgpu_setup_bind_args setup_bind_args;
nvgpu_get_setup_bind_args(channel_setup_bind_args,
&setup_bind_args);
err = gk20a_busy(ch->g);
if (err) {
dev_err(dev,
"%s: failed to host gk20a for ioctl cmd: 0x%x",
__func__, cmd);
break;
}
if (!is_power_of_2(setup_bind_args.num_gpfifo_entries)) {
err = -EINVAL;
gk20a_idle(ch->g);
break;
}
err = nvgpu_channel_setup_bind(ch, &setup_bind_args);
gk20a_idle(ch->g);
break;
}
case NVGPU_IOCTL_CHANNEL_ALLOC_GPFIFO_EX:
{
struct nvgpu_alloc_gpfifo_ex_args *alloc_gpfifo_ex_args =
(struct nvgpu_alloc_gpfifo_ex_args *)buf;
struct nvgpu_gpfifo_args gpfifo_args;
struct nvgpu_setup_bind_args setup_bind_args;
nvgpu_get_gpfifo_ex_args(alloc_gpfifo_ex_args, &gpfifo_args);
nvgpu_get_gpfifo_ex_args(alloc_gpfifo_ex_args, &setup_bind_args);
err = gk20a_busy(ch->g);
if (err) {
@@ -1140,7 +1180,7 @@ long gk20a_channel_ioctl(struct file *filp,
gk20a_idle(ch->g);
break;
}
err = gk20a_channel_alloc_gpfifo(ch, &gpfifo_args);
err = nvgpu_channel_setup_bind(ch, &setup_bind_args);
gk20a_idle(ch->g);
break;
}
@@ -1148,9 +1188,9 @@ long gk20a_channel_ioctl(struct file *filp,
{
struct nvgpu_alloc_gpfifo_args *alloc_gpfifo_args =
(struct nvgpu_alloc_gpfifo_args *)buf;
struct nvgpu_gpfifo_args gpfifo_args;
struct nvgpu_setup_bind_args setup_bind_args;
nvgpu_get_gpfifo_args(alloc_gpfifo_args, &gpfifo_args);
nvgpu_get_gpfifo_args(alloc_gpfifo_args, &setup_bind_args);
err = gk20a_busy(ch->g);
if (err) {
@@ -1160,7 +1200,7 @@ long gk20a_channel_ioctl(struct file *filp,
break;
}
err = gk20a_channel_alloc_gpfifo(ch, &gpfifo_args);
err = nvgpu_channel_setup_bind(ch, &setup_bind_args);
gk20a_idle(ch->g);
break;
}