diff options
| author | Michal Wajdeczko <michal.wajdeczko@intel.com> | 2021-06-03 08:16:24 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2021-06-04 11:35:44 +0300 |
| commit | 7c567bbf6f267c7379ddbba7afba7608d6e8e39f (patch) | |
| tree | 0d92162b56e56bc66a592d425c8d70656b30b577 /drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h | |
| parent | df12d1c3014f5a2f37e561a5331cf4bb7563b937 (diff) | |
| download | linux-7c567bbf6f267c7379ddbba7afba7608d6e8e39f.tar.xz | |
drm/i915/guc: Start protecting access to CTB descriptors
We want to stop using guc.send_mutex while sending CTB messages
so we have to start protecting access to CTB send descriptor.
For completeness protect also CTB receive descriptor.
Add spinlock to struct intel_guc_ct_buffer and start using it.
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210603051630.2635-15-matthew.brost@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h index fc9486779e87..bc52dc479a14 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h @@ -27,11 +27,13 @@ struct intel_guc; * record (command transport buffer descriptor) and the actual buffer which * holds the commands. * + * @lock: protects access to the commands buffer and buffer descriptor * @desc: pointer to the buffer descriptor * @cmds: pointer to the commands buffer * @size: size of the commands buffer */ struct intel_guc_ct_buffer { + spinlock_t lock; struct guc_ct_buffer_desc *desc; u32 *cmds; u32 size; |