diff options
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 | 36 |
1 files changed, 32 insertions, 4 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 cb222f202301..f709a19c7e21 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h @@ -9,11 +9,14 @@ #include <linux/interrupt.h> #include <linux/spinlock.h> #include <linux/workqueue.h> +#include <linux/ktime.h> +#include <linux/wait.h> #include "intel_guc_fwif.h" struct i915_vma; struct intel_guc; +struct drm_printer; /** * DOC: Command Transport (CT). @@ -31,16 +34,25 @@ struct intel_guc; * @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 + * @size: size of the commands buffer in dwords + * @resv_space: reserved space in buffer in dwords + * @head: local shadow copy of head in dwords + * @tail: local shadow copy of tail in dwords + * @space: local shadow copy of space in dwords + * @broken: flag to indicate if descriptor data is broken */ struct intel_guc_ct_buffer { spinlock_t lock; struct guc_ct_buffer_desc *desc; u32 *cmds; u32 size; + u32 resv_space; + u32 tail; + u32 head; + atomic_t space; + bool broken; }; - /** Top-level structure for Command Transport related data * * Includes a pair of CT buffers for bi-directional communication and tracking @@ -58,8 +70,11 @@ struct intel_guc_ct { struct tasklet_struct receive_tasklet; + /** @wq: wait queue for g2h chanenl */ + wait_queue_head_t wq; + struct { - u32 last_fence; /* last fence used to send request */ + u16 last_fence; /* last fence used to send request */ spinlock_t lock; /* protects pending requests list */ struct list_head pending; /* requests waiting for response */ @@ -67,6 +82,9 @@ struct intel_guc_ct { struct list_head incoming; /* incoming requests */ struct work_struct worker; /* handler for incoming requests */ } requests; + + /** @stall_time: time of first time a CTB submission is stalled */ + ktime_t stall_time; }; void intel_guc_ct_init_early(struct intel_guc_ct *ct); @@ -85,8 +103,18 @@ static inline bool intel_guc_ct_enabled(struct intel_guc_ct *ct) return ct->enabled; } +#define INTEL_GUC_CT_SEND_NB BIT(31) +#define INTEL_GUC_CT_SEND_G2H_DW_SHIFT 0 +#define INTEL_GUC_CT_SEND_G2H_DW_MASK (0xff << INTEL_GUC_CT_SEND_G2H_DW_SHIFT) +#define MAKE_SEND_FLAGS(len) ({ \ + typeof(len) len_ = (len); \ + GEM_BUG_ON(!FIELD_FIT(INTEL_GUC_CT_SEND_G2H_DW_MASK, len_)); \ + (FIELD_PREP(INTEL_GUC_CT_SEND_G2H_DW_MASK, len_) | INTEL_GUC_CT_SEND_NB); \ +}) int intel_guc_ct_send(struct intel_guc_ct *ct, const u32 *action, u32 len, - u32 *response_buf, u32 response_buf_size); + u32 *response_buf, u32 response_buf_size, u32 flags); void intel_guc_ct_event_handler(struct intel_guc_ct *ct); +void intel_guc_ct_print_info(struct intel_guc_ct *ct, struct drm_printer *p); + #endif /* _INTEL_GUC_CT_H_ */ |