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drm/amdgpu: Keep reset handlers shared

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Instead of maintaining a list per device, keep the reset handlers common
per ASIC family. A pointer to the list of handlers is maintained in
reset control.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Le Ma <le.ma@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@amd.com>
Tested-by: Asad Kamal <asad.kamal@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Lijo Lazar
2023-08-05 15:27:01 +05:30
committed by Alex Deucher
parent 0786491135
commit f8a499aed2
5 changed files with 45 additions and 37 deletions
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16
drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
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@@ -26,6 +26,8 @@
#include "amdgpu.h"
#define AMDGPU_RESET_MAX_HANDLERS 5
enum AMDGPU_RESET_FLAGS {
AMDGPU_NEED_FULL_RESET = 0,
@@ -44,7 +46,6 @@ struct amdgpu_reset_context {
struct amdgpu_reset_handler {
enum amd_reset_method reset_method;
struct list_head handler_list;
int (*prepare_env)(struct amdgpu_reset_control *reset_ctl,
struct amdgpu_reset_context *context);
int (*prepare_hwcontext)(struct amdgpu_reset_control *reset_ctl,
@@ -63,7 +64,8 @@ struct amdgpu_reset_control {
void *handle;
struct work_struct reset_work;
struct mutex reset_lock;
struct list_head reset_handlers;
struct amdgpu_reset_handler *(
*reset_handlers)[AMDGPU_RESET_MAX_HANDLERS];
atomic_t in_reset;
enum amd_reset_method active_reset;
struct amdgpu_reset_handler *(*get_reset_handler)(
@@ -97,8 +99,10 @@ int amdgpu_reset_prepare_hwcontext(struct amdgpu_device *adev,
int amdgpu_reset_perform_reset(struct amdgpu_device *adev,
struct amdgpu_reset_context *reset_context);
int amdgpu_reset_add_handler(struct amdgpu_reset_control *reset_ctl,
struct amdgpu_reset_handler *handler);
int amdgpu_reset_prepare_env(struct amdgpu_device *adev,
struct amdgpu_reset_context *reset_context);
int amdgpu_reset_restore_env(struct amdgpu_device *adev,
struct amdgpu_reset_context *reset_context);
struct amdgpu_reset_domain *amdgpu_reset_create_reset_domain(enum amdgpu_reset_domain_type type,
char *wq_name);
@@ -126,4 +130,8 @@ void amdgpu_device_lock_reset_domain(struct amdgpu_reset_domain *reset_domain);
void amdgpu_device_unlock_reset_domain(struct amdgpu_reset_domain *reset_domain);
#define for_each_handler(i, handler, reset_ctl) \
for (i = 0; (i < AMDGPU_RESET_MAX_HANDLERS) && \
(handler = (*reset_ctl->reset_handlers)[i]); \
++i)
#endif