Lines Matching defs:IGU_REG_PF_CONFIGURATION

41789 #define IGU_REG_PF_CONFIGURATION                                                                             0x180800UL //Access:RW   DataWidth:0x6    // b0 - function enable; b1 - MSI/MSIX enable; b2 - INT enable; b3 - attention enable; b4 - single ISR mode enable; b5 - simd all ones mode - If clear (reset value):If the result of SB_before_mask & MASK is 0xFFFF_FFFF then the read result will be 0x7FFF_FFFF and the mask will be also 0x7FFF_FFFF. Therefore the interrupt is not de-asserted (the MSB SB is asserted and unmasked). And on the next read from SIMD with mask the result will be 0x8000_0000 and only now the interrupt will be de-asserted. If set: If the result of SB_before_mask & MASK is 0xFFFF_FFFF then the read result will be 0x7FFF_FFFF but the mask will be 0xFFFF_FFFF. Therefore the interrupt is de-asserted. And on the next read from SIMD with mask the result will be 0x0.