Allocate data structures for SLPC and functions for initializing on host side.
v2: Address review comments (Michal W)
Signed-off-by: Vinay Belgaumkar vinay.belgaumkar@intel.com Signed-off-by: Sundaresan Sujaritha sujaritha.sundaresan@intel.com --- drivers/gpu/drm/i915/gt/uc/intel_guc.c | 11 ++++++ drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c | 36 ++++++++++++++++++- drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.h | 1 + .../gpu/drm/i915/gt/uc/intel_guc_slpc_types.h | 3 ++ 4 files changed, 50 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c index fcccb103a21a..686cb978662d 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c @@ -337,6 +337,12 @@ int intel_guc_init(struct intel_guc *guc) goto err_ct; }
+ if (intel_guc_slpc_is_used(guc)) { + ret = intel_guc_slpc_init(&guc->slpc); + if (ret) + goto err_submission; + } + /* now that everything is perma-pinned, initialize the parameters */ guc_init_params(guc);
@@ -347,6 +353,8 @@ int intel_guc_init(struct intel_guc *guc)
return 0;
+err_submission: + intel_guc_submission_fini(guc); err_ct: intel_guc_ct_fini(&guc->ct); err_ads: @@ -369,6 +377,9 @@ void intel_guc_fini(struct intel_guc *guc)
i915_ggtt_disable_guc(gt->ggtt);
+ if (intel_guc_slpc_is_used(guc)) + intel_guc_slpc_fini(&guc->slpc); + if (intel_guc_submission_is_used(guc)) intel_guc_submission_fini(guc);
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c index d9feb430ce35..a99d727b5bf0 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c @@ -12,6 +12,16 @@ static inline struct intel_guc *slpc_to_guc(struct intel_guc_slpc *slpc) return container_of(slpc, struct intel_guc, slpc); }
+static inline struct intel_gt *slpc_to_gt(struct intel_guc_slpc *slpc) +{ + return guc_to_gt(slpc_to_guc(slpc)); +} + +static inline struct drm_i915_private *slpc_to_i915(struct intel_guc_slpc *slpc) +{ + return (slpc_to_gt(slpc))->i915; +} + static bool __detect_slpc_supported(struct intel_guc *guc) { /* GuC SLPC is unavailable for pre-Gen12 */ @@ -35,9 +45,29 @@ void intel_guc_slpc_init_early(struct intel_guc_slpc *slpc) guc->slpc_selected = __guc_slpc_selected(guc); }
+static int slpc_shared_data_init(struct intel_guc_slpc *slpc) +{ + struct intel_guc *guc = slpc_to_guc(slpc); + struct drm_i915_private *i915 = slpc_to_i915(slpc); + u32 size = PAGE_ALIGN(sizeof(struct slpc_shared_data)); + int err; + + err = intel_guc_allocate_and_map_vma(guc, size, &slpc->vma, (void **)&slpc->vaddr); + if (unlikely(err)) { + drm_err(&i915->drm, + "Failed to allocate SLPC struct (err=%pe)\n", + ERR_PTR(err)); + return err; + } + + return err; +} + int intel_guc_slpc_init(struct intel_guc_slpc *slpc) { - return 0; + GEM_BUG_ON(slpc->vma); + + return slpc_shared_data_init(slpc); }
/* @@ -60,4 +90,8 @@ int intel_guc_slpc_enable(struct intel_guc_slpc *slpc)
void intel_guc_slpc_fini(struct intel_guc_slpc *slpc) { + if (!slpc->vma) + return; + + i915_vma_unpin_and_release(&slpc->vma, I915_VMA_RELEASE_MAP); } diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.h index c3b0ad7f0f93..f02249ff5f1b 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.h +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.h @@ -8,6 +8,7 @@
#include "intel_guc_submission.h" #include "intel_guc_slpc_types.h" +#include "abi/guc_actions_slpc_abi.h"
static inline bool intel_guc_slpc_is_supported(struct intel_guc *guc) { diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc_types.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc_types.h index b85148265b1f..214a449e78f2 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc_types.h +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc_types.h @@ -7,9 +7,12 @@ #define _INTEL_GUC_SLPC_TYPES_H_
#include <linux/types.h> +#include "abi/guc_actions_slpc_abi.h"
struct intel_guc_slpc {
+ struct i915_vma *vma; + struct slpc_shared_data *vaddr; };
#endif