When modifying the register state of the context, we can use the
ce->lrc_reg_state of the shadow context as we have it pinned.
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
---
drivers/gpu/drm/i915/gvt/scheduler.c | 35 +++++++++++-----------------
1 file changed, 13 insertions(+), 22 deletions(-)
diff --git a/drivers/gpu/drm/i915/gvt/scheduler.c
b/drivers/gpu/drm/i915/gvt/scheduler.c
index 685d1e04a5ff..290c792972ff 100644
--- a/drivers/gpu/drm/i915/gvt/scheduler.c
+++ b/drivers/gpu/drm/i915/gvt/scheduler.c
@@ -35,7 +35,6 @@
#include <linux/kthread.h>
-#include "gem/i915_gem_pm.h"
#include "gt/intel_context.h"
#include "gt/intel_ring.h"
@@ -58,10 +57,7 @@ static void set_context_pdp_root_pointer(
static void update_shadow_pdps(struct intel_vgpu_workload *workload)
{
- struct drm_i915_gem_object *ctx_obj =
- workload->req->context->state->obj;
- struct execlist_ring_context *shadow_ring_context;
- struct page *page;
+ u32 *regs;
if (WARN_ON(!workload->shadow_mm))
return;
@@ -69,11 +65,9 @@ static void update_shadow_pdps(struct intel_vgpu_workload
*workload)
if (WARN_ON(!atomic_read(&workload->shadow_mm->pincount)))
return;
- page = i915_gem_object_get_page(ctx_obj, LRC_STATE_PN);
- shadow_ring_context = kmap(page);
- set_context_pdp_root_pointer(shadow_ring_context,
+ regs = workload->req->context->lrc_reg_state;
+ set_context_pdp_root_pointer((struct execlist_ring_context *)regs,
(void *)workload->shadow_mm->ppgtt_mm.shadow_pdps);
- kunmap(page);
}
/*
@@ -129,18 +123,15 @@ static int populate_shadow_context(struct
intel_vgpu_workload *workload)
struct intel_vgpu *vgpu = workload->vgpu;
struct intel_gvt *gvt = vgpu->gvt;
int ring_id = workload->ring_id;
- struct drm_i915_gem_object *ctx_obj =
- workload->req->context->state->obj;
- struct execlist_ring_context *shadow_ring_context;
+ u32 *regs = workload->req->context->lrc_reg_state;
+ struct execlist_ring_context *shadow_ring_context =
+ (struct execlist_ring_context *)regs;
+ unsigned long context_gpa, context_page_num;
struct page *page;
void *dst;
- unsigned long context_gpa, context_page_num;
int i;
- page = i915_gem_object_get_page(ctx_obj, LRC_STATE_PN);
- shadow_ring_context = kmap(page);
-
- sr_oa_regs(workload, (u32 *)shadow_ring_context, true);
+ sr_oa_regs(workload, regs, true);
#define COPY_REG(name) \
intel_gvt_hypervisor_read_gpa(vgpu, workload->ring_context_gpa \
+ RING_CTX_OFF(name.val), &shadow_ring_context->name.val, 4)
@@ -170,7 +161,6 @@ static int populate_shadow_context(struct
intel_vgpu_workload *workload)
I915_GTT_PAGE_SIZE - sizeof(*shadow_ring_context));
sr_oa_regs(workload, (u32 *)shadow_ring_context, false);
- kunmap(page);
if (IS_RESTORE_INHIBIT(shadow_ring_context->ctx_ctrl.val))
return 0;
@@ -187,6 +177,9 @@ static int populate_shadow_context(struct
intel_vgpu_workload *workload)
i = 2;
while (i < context_page_num) {
+ struct drm_i915_gem_object *ctx_obj =
+ workload->req->context->state->obj;
+
context_gpa = intel_vgpu_gma_to_gpa(vgpu->gtt.ggtt_mm,
(u32)((workload->ctx_desc.lrca + i) <<
I915_GTT_PAGE_SHIFT));
@@ -843,8 +836,8 @@ static void update_guest_context(struct intel_vgpu_workload
*workload)
intel_gvt_hypervisor_write_gpa(vgpu, workload->ring_context_gpa +
RING_CTX_OFF(ring_header.val), &workload->rb_tail, 4);
- page = i915_gem_object_get_page(ctx_obj, LRC_STATE_PN);
- shadow_ring_context = kmap(page);
+ shadow_ring_context =
+ (struct execlist_ring_context *)rq->context->lrc_reg_state;
#define COPY_REG(name) \
intel_gvt_hypervisor_write_gpa(vgpu, workload->ring_context_gpa + \
@@ -861,8 +854,6 @@ static void update_guest_context(struct intel_vgpu_workload
*workload)
(void *)shadow_ring_context +
sizeof(*shadow_ring_context),
I915_GTT_PAGE_SIZE - sizeof(*shadow_ring_context));
-
- kunmap(page);
}
void intel_vgpu_clean_workloads(struct intel_vgpu *vgpu,
--
2.25.0
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