nv-tegra-mirror/linux-nvgpu
1
0
Fork 0
mirror of git://nv-tegra.nvidia.com/linux-nvgpu.git synced 2025-12-23 18:16:01 +03:00
Code Issues Packages Projects Releases Wiki Activity

gpu: nvgpu: Move isr related fields from gk20a

Browse Source 
Move fields in struct gk20a related to interrupt handling into
Linux specific nvgpu_os_linux. At the same time move the counter
logic from function in HAL into Linux specific code, and two Linux
specific power management functions from generic gk20a.c to Linux
specific module.c.

JIRA NVGPU-123

Change-Id: I0a08fd2e81297c8dff7a85c263ded928496c4de0
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1528177
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Sourab Gupta <sourabg@nvidia.com>
GVS: Gerrit_Virtual_Submit
This commit is contained in:
Terje Bergstrom
2017-07-27 12:15:19 -07:00
committed by mobile promotions
parent 11e29991ac
commit e1df72771b
9 changed files with 79 additions and 72 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/gpu/nvgpu/common/linux/driver_common.c
View File

@@ -38,8 +38,8 @@ static void nvgpu_init_vars(struct gk20a *g)
struct device *dev = dev_from_gk20a(g);
struct gk20a_platform *platform = dev_get_drvdata(dev);
init_waitqueue_head(&g->sw_irq_stall_last_handled_wq);
init_waitqueue_head(&g->sw_irq_nonstall_last_handled_wq);
init_waitqueue_head(&l->sw_irq_stall_last_handled_wq);
init_waitqueue_head(&l->sw_irq_nonstall_last_handled_wq);
gk20a_init_gr(g);
init_rwsem(&g->busy_lock);
@@ -236,18 +236,19 @@ static int cyclic_delta(int a, int b)
*/
void nvgpu_wait_for_deferred_interrupts(struct gk20a *g)
{
int stall_irq_threshold = atomic_read(&g->hw_irq_stall_count);
int nonstall_irq_threshold = atomic_read(&g->hw_irq_nonstall_count);
struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g);
int stall_irq_threshold = atomic_read(&l->hw_irq_stall_count);
int nonstall_irq_threshold = atomic_read(&l->hw_irq_nonstall_count);
/* wait until all stalling irqs are handled */
wait_event(g->sw_irq_stall_last_handled_wq,
wait_event(l->sw_irq_stall_last_handled_wq,
cyclic_delta(stall_irq_threshold,
atomic_read(&g->sw_irq_stall_last_handled))
atomic_read(&l->sw_irq_stall_last_handled))
<= 0);
/* wait until all non-stalling irqs are handled */
wait_event(g->sw_irq_nonstall_last_handled_wq,
wait_event(l->sw_irq_nonstall_last_handled_wq,
cyclic_delta(nonstall_irq_threshold,
atomic_read(&g->sw_irq_nonstall_last_handled))
atomic_read(&l->sw_irq_nonstall_last_handled))
<= 0);
}