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gpu: nvgpu: Abstract kernel_restart()

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This function is used in gk20a.c to handle catastrophic error conditions
but is Linux specific. As such, implement an abstraction for this in
driver_common.c and expose the API in nvgpu_common.h.

JIRA NVGPU-525

Signed-off-by: Alex Waterman <alexw@nvidia.com>
Change-Id: Ie2e417d30af5ff7db76f4d2d5b97ec96c386bd04
Reviewed-on: https://git-master.nvidia.com/r/1662543
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Alex Waterman
2018-02-16 14:17:27 -08:00
committed by mobile promotions
parent ed36c60545
commit c991410874
3 changed files with 9 additions and 3 deletions
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6
drivers/gpu/nvgpu/common/linux/driver_common.c
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@@ -14,6 +14,7 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>. * along with this program. If not, see <http://www.gnu.org/licenses/>.
*/ */
#include <linux/reboot.h>
#include <linux/dma-mapping.h> #include <linux/dma-mapping.h>
#include <linux/mm.h> #include <linux/mm.h>
#include <uapi/linux/nvgpu.h> #include <uapi/linux/nvgpu.h>
@@ -37,6 +38,11 @@
#define EMC3D_DEFAULT_RATIO 750 #define EMC3D_DEFAULT_RATIO 750
void nvgpu_kernel_restart(void *cmd)
{
kernel_restart(cmd);
}
static void nvgpu_init_vars(struct gk20a *g) static void nvgpu_init_vars(struct gk20a *g)
{ {
struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g); struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g);

4
drivers/gpu/nvgpu/gk20a/gk20a.c
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@@ -22,8 +22,6 @@
* DEALINGS IN THE SOFTWARE. * DEALINGS IN THE SOFTWARE.
*/ */
#include <linux/reboot.h>
#include <nvgpu/nvgpu_common.h> #include <nvgpu/nvgpu_common.h>
#include <nvgpu/kmem.h> #include <nvgpu/kmem.h>
#include <nvgpu/allocator.h> #include <nvgpu/allocator.h>
@@ -61,7 +59,7 @@ void __nvgpu_check_gpu_state(struct gk20a *g)
if (boot_0 == 0xffffffff) { if (boot_0 == 0xffffffff) {
nvgpu_err(g, "GPU has disappeared from bus!!"); nvgpu_err(g, "GPU has disappeared from bus!!");
nvgpu_err(g, "Rebooting system!!"); nvgpu_err(g, "Rebooting system!!");
kernel_restart(NULL); nvgpu_kernel_restart(NULL);
} }
} }

2
drivers/gpu/nvgpu/include/nvgpu/nvgpu_common.h
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@@ -31,4 +31,6 @@ int nvgpu_probe(struct gk20a *g,
const char *interface_name, const char *interface_name,
struct class *class); struct class *class);
void nvgpu_kernel_restart(void *cmd);
#endif #endif