diff options
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/render.c | 39 |
1 files changed, 26 insertions, 13 deletions
diff --git a/drivers/gpu/drm/i915/gvt/render.c b/drivers/gpu/drm/i915/gvt/render.c index 5a08bcd436a1..2ea542257f03 100644 --- a/drivers/gpu/drm/i915/gvt/render.c +++ b/drivers/gpu/drm/i915/gvt/render.c @@ -207,7 +207,7 @@ static void load_mocs(struct intel_vgpu *vgpu, int ring_id) offset.reg = regs[ring_id]; for (i = 0; i < 64; i++) { - gen9_render_mocs[ring_id][i] = I915_READ(offset); + gen9_render_mocs[ring_id][i] = I915_READ_FW(offset); I915_WRITE(offset, vgpu_vreg(vgpu, offset)); offset.reg += 4; } @@ -215,8 +215,8 @@ static void load_mocs(struct intel_vgpu *vgpu, int ring_id) if (ring_id == RCS) { l3_offset.reg = 0xb020; for (i = 0; i < 32; i++) { - gen9_render_mocs_L3[i] = I915_READ(l3_offset); - I915_WRITE(l3_offset, vgpu_vreg(vgpu, l3_offset)); + gen9_render_mocs_L3[i] = I915_READ_FW(l3_offset); + I915_WRITE_FW(l3_offset, vgpu_vreg(vgpu, l3_offset)); l3_offset.reg += 4; } } @@ -240,16 +240,16 @@ static void restore_mocs(struct intel_vgpu *vgpu, int ring_id) offset.reg = regs[ring_id]; for (i = 0; i < 64; i++) { - vgpu_vreg(vgpu, offset) = I915_READ(offset); - I915_WRITE(offset, gen9_render_mocs[ring_id][i]); + vgpu_vreg(vgpu, offset) = I915_READ_FW(offset); + I915_WRITE_FW(offset, gen9_render_mocs[ring_id][i]); offset.reg += 4; } if (ring_id == RCS) { l3_offset.reg = 0xb020; for (i = 0; i < 32; i++) { - vgpu_vreg(vgpu, l3_offset) = I915_READ(l3_offset); - I915_WRITE(l3_offset, gen9_render_mocs_L3[i]); + vgpu_vreg(vgpu, l3_offset) = I915_READ_FW(l3_offset); + I915_WRITE_FW(l3_offset, gen9_render_mocs_L3[i]); l3_offset.reg += 4; } } @@ -284,7 +284,7 @@ static void switch_mmio_to_vgpu(struct intel_vgpu *vgpu, int ring_id) if (mmio->ring_id != ring_id) continue; - mmio->value = I915_READ(mmio->reg); + mmio->value = I915_READ_FW(mmio->reg); /* * if it is an inhibit context, load in_context mmio @@ -301,7 +301,7 @@ static void switch_mmio_to_vgpu(struct intel_vgpu *vgpu, int ring_id) else v = vgpu_vreg(vgpu, mmio->reg); - I915_WRITE(mmio->reg, v); + I915_WRITE_FW(mmio->reg, v); last_reg = mmio->reg; trace_render_mmio(vgpu->id, "load", @@ -311,7 +311,7 @@ static void switch_mmio_to_vgpu(struct intel_vgpu *vgpu, int ring_id) /* Make sure the swiched MMIOs has taken effect. */ if (likely(INTEL_GVT_MMIO_OFFSET(last_reg))) - POSTING_READ(last_reg); + I915_READ_FW(last_reg); handle_tlb_pending_event(vgpu, ring_id); } @@ -338,7 +338,7 @@ static void switch_mmio_to_host(struct intel_vgpu *vgpu, int ring_id) if (mmio->ring_id != ring_id) continue; - vgpu_vreg(vgpu, mmio->reg) = I915_READ(mmio->reg); + vgpu_vreg(vgpu, mmio->reg) = I915_READ_FW(mmio->reg); if (mmio->mask) { vgpu_vreg(vgpu, mmio->reg) &= ~(mmio->mask << 16); @@ -349,7 +349,7 @@ static void switch_mmio_to_host(struct intel_vgpu *vgpu, int ring_id) if (mmio->in_context) continue; - I915_WRITE(mmio->reg, v); + I915_WRITE_FW(mmio->reg, v); last_reg = mmio->reg; trace_render_mmio(vgpu->id, "restore", @@ -359,7 +359,7 @@ static void switch_mmio_to_host(struct intel_vgpu *vgpu, int ring_id) /* Make sure the swiched MMIOs has taken effect. */ if (likely(INTEL_GVT_MMIO_OFFSET(last_reg))) - POSTING_READ(last_reg); + I915_READ_FW(last_reg); } /** @@ -374,12 +374,23 @@ static void switch_mmio_to_host(struct intel_vgpu *vgpu, int ring_id) void intel_gvt_switch_mmio(struct intel_vgpu *pre, struct intel_vgpu *next, int ring_id) { + struct drm_i915_private *dev_priv; + if (WARN_ON(!pre && !next)) return; gvt_dbg_render("switch ring %d from %s to %s\n", ring_id, pre ? "vGPU" : "host", next ? "vGPU" : "HOST"); + dev_priv = pre ? pre->gvt->dev_priv : next->gvt->dev_priv; + + /** + * We are using raw mmio access wrapper to improve the + * performace for batch mmio read/write, so we need + * handle forcewake mannually. + */ + intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL); + /** * TODO: Optimize for vGPU to vGPU switch by merging * switch_mmio_to_host() and switch_mmio_to_vgpu(). @@ -389,4 +400,6 @@ void intel_gvt_switch_mmio(struct intel_vgpu *pre, if (next) switch_mmio_to_vgpu(next, ring_id); + + intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL); } |