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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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f24940e000
Need a explicit write_vreg in TLB MMIO write handler, beside that TLB vreg should update correspondingly following HW status to do correct emulation. Signed-off-by: Ping Gao <ping.a.gao@intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
311 lines
8.2 KiB
C
311 lines
8.2 KiB
C
/*
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* Copyright(c) 2011-2016 Intel Corporation. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Authors:
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* Eddie Dong <eddie.dong@intel.com>
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* Kevin Tian <kevin.tian@intel.com>
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*
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* Contributors:
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* Zhi Wang <zhi.a.wang@intel.com>
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* Changbin Du <changbin.du@intel.com>
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* Zhenyu Wang <zhenyuw@linux.intel.com>
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* Tina Zhang <tina.zhang@intel.com>
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* Bing Niu <bing.niu@intel.com>
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*
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*/
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#include "i915_drv.h"
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#include "gvt.h"
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struct render_mmio {
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int ring_id;
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i915_reg_t reg;
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u32 mask;
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bool in_context;
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u32 value;
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};
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static struct render_mmio gen8_render_mmio_list[] = {
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{RCS, _MMIO(0x229c), 0xffff, false},
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{RCS, _MMIO(0x2248), 0x0, false},
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{RCS, _MMIO(0x2098), 0x0, false},
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{RCS, _MMIO(0x20c0), 0xffff, true},
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{RCS, _MMIO(0x24d0), 0, false},
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{RCS, _MMIO(0x24d4), 0, false},
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{RCS, _MMIO(0x24d8), 0, false},
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{RCS, _MMIO(0x24dc), 0, false},
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{RCS, _MMIO(0x7004), 0xffff, true},
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{RCS, _MMIO(0x7008), 0xffff, true},
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{RCS, _MMIO(0x7000), 0xffff, true},
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{RCS, _MMIO(0x7010), 0xffff, true},
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{RCS, _MMIO(0x7300), 0xffff, true},
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{RCS, _MMIO(0x83a4), 0xffff, true},
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{BCS, _MMIO(0x2229c), 0xffff, false},
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{BCS, _MMIO(0x2209c), 0xffff, false},
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{BCS, _MMIO(0x220c0), 0xffff, false},
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{BCS, _MMIO(0x22098), 0x0, false},
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{BCS, _MMIO(0x22028), 0x0, false},
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};
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static struct render_mmio gen9_render_mmio_list[] = {
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{RCS, _MMIO(0x229c), 0xffff, false},
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{RCS, _MMIO(0x2248), 0x0, false},
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{RCS, _MMIO(0x2098), 0x0, false},
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{RCS, _MMIO(0x20c0), 0xffff, true},
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{RCS, _MMIO(0x24d0), 0, false},
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{RCS, _MMIO(0x24d4), 0, false},
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{RCS, _MMIO(0x24d8), 0, false},
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{RCS, _MMIO(0x24dc), 0, false},
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{RCS, _MMIO(0x7004), 0xffff, true},
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{RCS, _MMIO(0x7008), 0xffff, true},
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{RCS, _MMIO(0x7000), 0xffff, true},
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{RCS, _MMIO(0x7010), 0xffff, true},
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{RCS, _MMIO(0x7300), 0xffff, true},
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{RCS, _MMIO(0x83a4), 0xffff, true},
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{RCS, _MMIO(0x40e0), 0, false},
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{RCS, _MMIO(0x40e4), 0, false},
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{RCS, _MMIO(0x2580), 0xffff, true},
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{RCS, _MMIO(0x7014), 0xffff, true},
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{RCS, _MMIO(0x20ec), 0xffff, false},
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{RCS, _MMIO(0xb118), 0, false},
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{RCS, _MMIO(0xe100), 0xffff, true},
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{RCS, _MMIO(0xe180), 0xffff, true},
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{RCS, _MMIO(0xe184), 0xffff, true},
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{RCS, _MMIO(0xe188), 0xffff, true},
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{RCS, _MMIO(0xe194), 0xffff, true},
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{RCS, _MMIO(0x4de0), 0, false},
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{RCS, _MMIO(0x4de4), 0, false},
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{RCS, _MMIO(0x4de8), 0, false},
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{RCS, _MMIO(0x4dec), 0, false},
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{RCS, _MMIO(0x4df0), 0, false},
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{RCS, _MMIO(0x4df4), 0, false},
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{BCS, _MMIO(0x2229c), 0xffff, false},
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{BCS, _MMIO(0x2209c), 0xffff, false},
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{BCS, _MMIO(0x220c0), 0xffff, false},
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{BCS, _MMIO(0x22098), 0x0, false},
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{BCS, _MMIO(0x22028), 0x0, false},
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{VCS2, _MMIO(0x1c028), 0xffff, false},
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{VECS, _MMIO(0x1a028), 0xffff, false},
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};
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static u32 gen9_render_mocs[I915_NUM_ENGINES][64];
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static u32 gen9_render_mocs_L3[32];
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static void handle_tlb_pending_event(struct intel_vgpu *vgpu, int ring_id)
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{
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struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
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enum forcewake_domains fw;
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i915_reg_t reg;
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u32 regs[] = {
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[RCS] = 0x4260,
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[VCS] = 0x4264,
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[VCS2] = 0x4268,
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[BCS] = 0x426c,
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[VECS] = 0x4270,
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};
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if (WARN_ON(ring_id >= ARRAY_SIZE(regs)))
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return;
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if (!test_and_clear_bit(ring_id, (void *)vgpu->tlb_handle_pending))
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return;
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reg = _MMIO(regs[ring_id]);
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/* WaForceWakeRenderDuringMmioTLBInvalidate:skl
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* we need to put a forcewake when invalidating RCS TLB caches,
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* otherwise device can go to RC6 state and interrupt invalidation
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* process
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*/
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fw = intel_uncore_forcewake_for_reg(dev_priv, reg,
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FW_REG_READ | FW_REG_WRITE);
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if (ring_id == RCS && IS_SKYLAKE(dev_priv))
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fw |= FORCEWAKE_RENDER;
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intel_uncore_forcewake_get(dev_priv, fw);
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I915_WRITE_FW(reg, 0x1);
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if (wait_for_atomic((I915_READ_FW(reg) == 0), 50))
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gvt_err("timeout in invalidate ring (%d) tlb\n", ring_id);
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else
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vgpu_vreg(vgpu, regs[ring_id]) = 0;
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intel_uncore_forcewake_put(dev_priv, fw);
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gvt_dbg_core("invalidate TLB for ring %d\n", ring_id);
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}
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static void load_mocs(struct intel_vgpu *vgpu, int ring_id)
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{
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struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
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i915_reg_t offset, l3_offset;
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u32 regs[] = {
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[RCS] = 0xc800,
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[VCS] = 0xc900,
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[VCS2] = 0xca00,
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[BCS] = 0xcc00,
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[VECS] = 0xcb00,
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};
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int i;
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if (WARN_ON(ring_id >= ARRAY_SIZE(regs)))
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return;
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if (!IS_SKYLAKE(dev_priv))
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return;
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offset.reg = regs[ring_id];
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for (i = 0; i < 64; i++) {
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gen9_render_mocs[ring_id][i] = I915_READ(offset);
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I915_WRITE(offset, vgpu_vreg(vgpu, offset));
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POSTING_READ(offset);
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offset.reg += 4;
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}
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if (ring_id == RCS) {
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l3_offset.reg = 0xb020;
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for (i = 0; i < 32; i++) {
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gen9_render_mocs_L3[i] = I915_READ(l3_offset);
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I915_WRITE(l3_offset, vgpu_vreg(vgpu, offset));
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POSTING_READ(l3_offset);
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l3_offset.reg += 4;
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}
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}
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}
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static void restore_mocs(struct intel_vgpu *vgpu, int ring_id)
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{
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struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
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i915_reg_t offset, l3_offset;
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u32 regs[] = {
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[RCS] = 0xc800,
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[VCS] = 0xc900,
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[VCS2] = 0xca00,
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[BCS] = 0xcc00,
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[VECS] = 0xcb00,
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};
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int i;
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if (WARN_ON(ring_id >= ARRAY_SIZE(regs)))
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return;
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if (!IS_SKYLAKE(dev_priv))
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return;
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offset.reg = regs[ring_id];
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for (i = 0; i < 64; i++) {
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vgpu_vreg(vgpu, offset) = I915_READ(offset);
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I915_WRITE(offset, gen9_render_mocs[ring_id][i]);
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POSTING_READ(offset);
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offset.reg += 4;
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}
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if (ring_id == RCS) {
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l3_offset.reg = 0xb020;
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for (i = 0; i < 32; i++) {
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vgpu_vreg(vgpu, l3_offset) = I915_READ(l3_offset);
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I915_WRITE(l3_offset, gen9_render_mocs_L3[i]);
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POSTING_READ(l3_offset);
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l3_offset.reg += 4;
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}
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}
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}
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void intel_gvt_load_render_mmio(struct intel_vgpu *vgpu, int ring_id)
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{
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struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
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struct render_mmio *mmio;
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u32 v;
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int i, array_size;
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if (IS_SKYLAKE(vgpu->gvt->dev_priv)) {
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mmio = gen9_render_mmio_list;
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array_size = ARRAY_SIZE(gen9_render_mmio_list);
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load_mocs(vgpu, ring_id);
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} else {
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mmio = gen8_render_mmio_list;
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array_size = ARRAY_SIZE(gen8_render_mmio_list);
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}
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for (i = 0; i < array_size; i++, mmio++) {
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if (mmio->ring_id != ring_id)
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continue;
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mmio->value = I915_READ(mmio->reg);
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if (mmio->mask)
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v = vgpu_vreg(vgpu, mmio->reg) | (mmio->mask << 16);
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else
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v = vgpu_vreg(vgpu, mmio->reg);
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I915_WRITE(mmio->reg, v);
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POSTING_READ(mmio->reg);
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gvt_dbg_render("load reg %x old %x new %x\n",
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i915_mmio_reg_offset(mmio->reg),
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mmio->value, v);
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}
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handle_tlb_pending_event(vgpu, ring_id);
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}
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void intel_gvt_restore_render_mmio(struct intel_vgpu *vgpu, int ring_id)
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{
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struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
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struct render_mmio *mmio;
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u32 v;
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int i, array_size;
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if (IS_SKYLAKE(dev_priv)) {
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mmio = gen9_render_mmio_list;
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array_size = ARRAY_SIZE(gen9_render_mmio_list);
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restore_mocs(vgpu, ring_id);
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} else {
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mmio = gen8_render_mmio_list;
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array_size = ARRAY_SIZE(gen8_render_mmio_list);
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}
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for (i = 0; i < array_size; i++, mmio++) {
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if (mmio->ring_id != ring_id)
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continue;
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vgpu_vreg(vgpu, mmio->reg) = I915_READ(mmio->reg);
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if (mmio->mask) {
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vgpu_vreg(vgpu, mmio->reg) &= ~(mmio->mask << 16);
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v = mmio->value | (mmio->mask << 16);
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} else
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v = mmio->value;
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I915_WRITE(mmio->reg, v);
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POSTING_READ(mmio->reg);
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gvt_dbg_render("restore reg %x old %x new %x\n",
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i915_mmio_reg_offset(mmio->reg),
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mmio->value, v);
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}
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}
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