From: Jonathan Cameron Date: Wed, 8 Jun 2022 13:08:04 +0000 (+0100) Subject: hw/cxl: Fix missing write mask for HDM decoder target list registers X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=f824f5294711ffc17c642dff3d898043d420d336;p=qemu.git hw/cxl: Fix missing write mask for HDM decoder target list registers Without being able to write these registers, no interleaving is possible. More refined checks of HDM register state on commit to follow. Signed-off-by: Jonathan Cameron Reviewed-by: Ben Widawsky Message-Id: <20220608130804.25795-1-Jonathan.Cameron@huawei.com> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- diff --git a/hw/cxl/cxl-component-utils.c b/hw/cxl/cxl-component-utils.c index 7985c9bfca..3edd303a33 100644 --- a/hw/cxl/cxl-component-utils.c +++ b/hw/cxl/cxl-component-utils.c @@ -154,7 +154,8 @@ static void ras_init_common(uint32_t *reg_state, uint32_t *write_msk) reg_state[R_CXL_RAS_ERR_CAP_CTRL] = 0x00; } -static void hdm_init_common(uint32_t *reg_state, uint32_t *write_msk) +static void hdm_init_common(uint32_t *reg_state, uint32_t *write_msk, + enum reg_type type) { int decoder_count = 1; int i; @@ -174,6 +175,14 @@ static void hdm_init_common(uint32_t *reg_state, uint32_t *write_msk) write_msk[R_CXL_HDM_DECODER0_SIZE_LO + i * 0x20] = 0xf0000000; write_msk[R_CXL_HDM_DECODER0_SIZE_HI + i * 0x20] = 0xffffffff; write_msk[R_CXL_HDM_DECODER0_CTRL + i * 0x20] = 0x13ff; + if (type == CXL2_DEVICE || + type == CXL2_TYPE3_DEVICE || + type == CXL2_LOGICAL_DEVICE) { + write_msk[R_CXL_HDM_DECODER0_TARGET_LIST_LO + i * 0x20] = 0xf0000000; + } else { + write_msk[R_CXL_HDM_DECODER0_TARGET_LIST_LO + i * 0x20] = 0xffffffff; + } + write_msk[R_CXL_HDM_DECODER0_TARGET_LIST_HI + i * 0x20] = 0xffffffff; } } @@ -239,7 +248,7 @@ void cxl_component_register_init_common(uint32_t *reg_state, uint32_t *write_msk } init_cap_reg(HDM, 5, 1); - hdm_init_common(reg_state, write_msk); + hdm_init_common(reg_state, write_msk, type); if (caps < 5) { return;