Hi Chris, Thank you for the patch! Yet something to improve: [auto build test ERROR on drm-intel/for-linux-next] [also build test ERROR on next-20181129] [cannot apply to v4.20-rc4] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Chris-Wilson/drm-i915-Pipeline-PDP-updates-for-Braswell/20181129-054757 base: git://anongit.freedesktop.org/drm-intel for-linux-next config: x86_64-allmodconfig (attached as .config) compiler: gcc-7 (Debian 7.3.0-1) 7.3.0 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): >> drivers/gpu/drm/i915/intel_lrc.c:1852:50: error: no member 'scratch' in struct <unnamed> include/linux/slab.h:332:43: warning: dubious: x & !y drivers/gpu/drm/i915/intel_lrc.c: In function 'emit_pdps': drivers/gpu/drm/i915/intel_lrc.c:1852:43: error: 'struct <anonymous>' has no member named 'scratch' *cs++ = i915_ggtt_offset(engine->i915->gt.scratch); ^ vim +/scratch +1852 drivers/gpu/drm/i915/intel_lrc.c 1808 1809 static int emit_pdps(struct i915_request *rq) 1810 { 1811 const struct intel_engine_cs * const engine = rq->engine; 1812 struct i915_hw_ppgtt * const ppgtt = rq->gem_context->ppgtt; 1813 const unsigned int num_rings = INTEL_INFO(rq->i915)->num_rings; 1814 struct intel_engine_cs *other; 1815 enum intel_engine_id id; 1816 u32 *cs; 1817 int i; 1818 1819 if (!(ppgtt->pd_dirty_rings & intel_engine_flag(engine))) 1820 return 0; 1821 1822 cs = intel_ring_begin(rq, 4 * (GEN8_3LVL_PDPES + num_rings) + 8); 1823 if (IS_ERR(cs)) 1824 return PTR_ERR(cs); 1825 1826 /* 1827 * Force the GPU (not just the local engine/powerwell!) to remain awake, 1828 * or else we may kill the machine with "timed out waiting for 1829 * forcewake ack request". 1830 */ 1831 1832 *cs++ = MI_LOAD_REGISTER_IMM(num_rings); 1833 for_each_engine(other, rq->i915, id) { 1834 *cs++ = i915_mmio_reg_offset(RING_PSMI_CTL(other->mmio_base)); 1835 *cs++ = _MASKED_BIT_ENABLE(GEN6_PSMI_SLEEP_MSG_DISABLE); 1836 } 1837 1838 *cs++ = MI_LOAD_REGISTER_IMM(2 * GEN8_3LVL_PDPES); 1839 for (i = GEN8_3LVL_PDPES; i--; ) { 1840 const dma_addr_t pd_daddr = i915_page_dir_dma_addr(ppgtt, i); 1841 1842 *cs++ = i915_mmio_reg_offset(GEN8_RING_PDP_UDW(engine, i)); 1843 *cs++ = upper_32_bits(pd_daddr); 1844 *cs++ = i915_mmio_reg_offset(GEN8_RING_PDP_LDW(engine, i)); 1845 *cs++ = lower_32_bits(pd_daddr); 1846 } 1847 *cs++ = MI_NOOP; 1848 1849 /* Posting read to flush the mmio before letting the GPU sleep again */ 1850 *cs++ = MI_STORE_REGISTER_MEM_GEN8 | MI_SRM_LRM_GLOBAL_GTT; 1851 *cs++ = i915_mmio_reg_offset(GEN8_RING_PDP_LDW(engine, 0)); > 1852 *cs++ = i915_ggtt_offset(engine->i915->gt.scratch); 1853 *cs++ = 0; 1854 1855 *cs++ = MI_LOAD_REGISTER_IMM(num_rings); 1856 for_each_engine(other, rq->i915, id) { 1857 *cs++ = i915_mmio_reg_offset(RING_PSMI_CTL(other->mmio_base)); 1858 *cs++ = _MASKED_BIT_DISABLE(GEN6_PSMI_SLEEP_MSG_DISABLE); 1859 } 1860 1861 intel_ring_advance(rq, cs); 1862 1863 ppgtt->pd_dirty_rings &= ~intel_engine_flag(engine); 1864 return 0; 1865 } 1866 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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