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gpu: nvgpu: Add compression state IOCTLs

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Bug 1409151

Change-Id: I29a325d7c2b481764fc82d945795d50bcb841961
Signed-off-by: Lauri Peltonen <lpeltonen@nvidia.com>
This commit is contained in:
Lauri Peltonen
2014-07-18 16:02:23 +03:00
committed by Dan Willemsen
parent c8faa10d1d
commit 574ee40e51
4 changed files with 399 additions and 25 deletions
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76
drivers/gpu/nvgpu/gk20a/ctrl_gk20a.c
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@@ -21,6 +21,7 @@
#include <linux/nvhost_gpu_ioctl.h>
#include "gk20a.h"
#include "fence_gk20a.h"
int gk20a_ctrl_dev_open(struct inode *inode, struct file *filp)
{
@@ -78,6 +79,72 @@ gk20a_ctrl_ioctl_gpu_characteristics(
return err;
}
static int gk20a_ctrl_prepare_compressible_read(
struct gk20a *g,
struct nvhost_gpu_prepare_compressible_read_args *args)
{
struct nvhost_fence fence;
struct gk20a_fence *fence_out = NULL;
int ret = 0;
int flags = args->submit_flags;
fence.syncpt_id = args->fence.syncpt_id;
fence.value = args->fence.syncpt_value;
gk20a_busy(g->dev);
ret = gk20a_prepare_compressible_read(g, args->handle,
args->request_compbits, args->offset,
args->compbits_hoffset, args->compbits_voffset,
args->width, args->height, args->block_height_log2,
flags, &fence, &args->valid_compbits,
&fence_out);
gk20a_idle(g->dev);
if (ret)
return ret;
/* Convert fence_out to something we can pass back to user space. */
if (flags & NVHOST_SUBMIT_GPFIFO_FLAGS_FENCE_GET) {
if (flags & NVHOST_SUBMIT_GPFIFO_FLAGS_SYNC_FENCE) {
if (fence_out) {
int fd = gk20a_fence_install_fd(fence_out);
if (fd < 0)
ret = fd;
else
args->fence.fd = fd;
} else {
args->fence.fd = -1;
}
} else {
if (fence_out) {
args->fence.syncpt_id = fence_out->syncpt_id;
args->fence.syncpt_value =
fence_out->syncpt_value;
} else {
args->fence.syncpt_id = -1;
args->fence.syncpt_value = 0;
}
}
}
gk20a_fence_put(fence_out);
return 0;
}
static int gk20a_ctrl_mark_compressible_write(
struct gk20a *g,
struct nvhost_gpu_mark_compressible_write_args *args)
{
int ret = 0;
gk20a_busy(g->dev);
ret = gk20a_mark_compressible_write(g, args->handle,
args->valid_compbits, args->offset);
gk20a_idle(g->dev);
return ret;
}
long gk20a_ctrl_dev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
struct platform_device *dev = filp->private_data;
@@ -225,7 +292,14 @@ long gk20a_ctrl_dev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg
err = gk20a_ctrl_ioctl_gpu_characteristics(
g, (struct nvhost_gpu_get_characteristics *)buf);
break;
case NVHOST_GPU_IOCTL_PREPARE_COMPRESSIBLE_READ:
err = gk20a_ctrl_prepare_compressible_read(g,
(struct nvhost_gpu_prepare_compressible_read_args *)buf);
break;
case NVHOST_GPU_IOCTL_MARK_COMPRESSIBLE_WRITE:
err = gk20a_ctrl_mark_compressible_write(g,
(struct nvhost_gpu_mark_compressible_write_args *)buf);
break;
default:
gk20a_err(dev_from_gk20a(g), "unrecognized gpu ioctl cmd: 0x%x", cmd);
err = -ENOTTY;