git/linux-cryptodev-2.6
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git synced 2026-04-23 05:56:14 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/amdkfd: Add wavefront context save state retrieval ioctl

Browse Source 
Wavefront context save data is of interest to userspace clients for
debugging static wavefront state. The MQD contains two parameters
required to parse the control stack and the control stack itself
is kept in the MQD from gfx9 onwards.

Add an ioctl to fetch the context save area and control stack offsets
and to copy the control stack to a userspace address if it is kept in
the MQD.

Signed-off-by: Jay Cornwall <Jay.Cornwall@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jay Cornwall
2017-05-02 17:39:37 -05:00
committed by Alex Deucher
parent 5ade6c9c35
commit 5df099e8bc
9 changed files with 159 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/gpu/drm/amd/amdkfd/kfd_priv.h
View File

@@ -862,6 +862,11 @@ int pqm_set_cu_mask(struct process_queue_manager *pqm, unsigned int qid,
struct queue_properties *p);
struct kernel_queue *pqm_get_kernel_queue(struct process_queue_manager *pqm,
unsigned int qid);
int pqm_get_wave_state(struct process_queue_manager *pqm,
unsigned int qid,
void __user *ctl_stack,
u32 *ctl_stack_used_size,
u32 *save_area_used_size);
int amdkfd_fence_wait_timeout(unsigned int *fence_addr,
unsigned int fence_value,