From patchwork Mon Sep 3 16:37:02 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rakesh Pillai X-Patchwork-Id: 10586127 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8950E13AC for ; Mon, 3 Sep 2018 16:38:42 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 794BF29594 for ; Mon, 3 Sep 2018 16:38:42 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6D5A2295A3; Mon, 3 Sep 2018 16:38:42 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AD20829594 for ; Mon, 3 Sep 2018 16:38:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727592AbeICU7d (ORCPT ); Mon, 3 Sep 2018 16:59:33 -0400 Received: from alexa-out-blr-02.qualcomm.com ([103.229.18.198]:17080 "EHLO alexa-out-blr.qualcomm.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727560AbeICU7d (ORCPT ); Mon, 3 Sep 2018 16:59:33 -0400 X-IronPort-AV: E=Sophos;i="5.53,325,1531765800"; d="scan'208";a="154564" Received: from ironmsg02-blr.qualcomm.com ([10.86.208.131]) by alexa-out-blr.qualcomm.com with ESMTP/TLS/AES256-SHA; 03 Sep 2018 22:07:26 +0530 X-IronPort-AV: E=McAfee;i="5900,7806,9005"; a="1014577" Received: from pillair-linux.qualcomm.com ([10.204.116.193]) by ironmsg02-blr.qualcomm.com with ESMTP; 03 Sep 2018 22:07:26 +0530 Received: by pillair-linux.qualcomm.com (Postfix, from userid 452944) id 6A7CE25B9; Mon, 3 Sep 2018 22:07:25 +0530 (IST) From: Rakesh Pillai To: ath10k@lists.infradead.org Cc: linux-wireless@vger.kernel.org, Rakesh Pillai Subject: [PATCH v2] ath10k: Set DMA address mask to 35 bit for WCN3990 Date: Mon, 3 Sep 2018 22:07:02 +0530 Message-Id: <1535992622-5074-1-git-send-email-pillair@codeaurora.org> X-Mailer: git-send-email 2.7.4 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP WCN3990 is a 37-bit target but can address memory range only upto 35 bits. The 36th bit is used to control the smmu/iommu translation and the 37th bit is used by the internal bus masters to access the wifi subsystem internal SRAM. With the DMA mask set to 37i-bit, the host driver can get 37-bit dma address, which leads to incorrect address access in the target. Hence the host driver can used addresses upto 35-bit for WCN3990. Fix the dma mask for wcn3990 to 35-bit, instead of 37-bit. Tested HW: WCN3990 Tested FW: WLAN.HL.2.0-01188-QCAHLSWMTPLZ-1 Signed-off-by: Rakesh Pillai Tested-by: Bjorn Andersson --- drivers/net/wireless/ath/ath10k/ce.c | 75 ++++++++++++++++++++---- drivers/net/wireless/ath/ath10k/ce.h | 14 +++-- drivers/net/wireless/ath/ath10k/htt_tx.c | 2 +- drivers/net/wireless/ath/ath10k/hw.c | 10 ++-- drivers/net/wireless/ath/ath10k/hw.h | 6 +- drivers/net/wireless/ath/ath10k/snoc.c | 2 +- 6 files changed, 84 insertions(+), 25 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c index 3b96a43fbda4..7c6733b026e5 100644 --- a/drivers/net/wireless/ath/ath10k/ce.c +++ b/drivers/net/wireless/ath/ath10k/ce.c @@ -228,11 +228,31 @@ ath10k_ce_shadow_dest_ring_write_index_set(struct ath10k *ar, } static inline void ath10k_ce_src_ring_base_addr_set(struct ath10k *ar, - u32 ce_ctrl_addr, - unsigned int addr) + u32 ce_id, + u64 addr) +{ + struct ath10k_ce *ce = ath10k_ce_priv(ar); + struct ath10k_ce_pipe *ce_state = &ce->ce_states[ce_id]; + u32 ce_ctrl_addr = ath10k_ce_base_address(ar, ce_id); + u32 addr_lo = lower_32_bits(addr); + + ath10k_ce_write32(ar, ce_ctrl_addr + + ar->hw_ce_regs->sr_base_addr_lo, addr_lo); + + if (ce_state->ops->ce_set_src_ring_base_addr_hi) { + ce_state->ops->ce_set_src_ring_base_addr_hi(ar, ce_ctrl_addr, + addr); + } +} + +static void ath10k_ce_set_src_ring_base_addr_hi(struct ath10k *ar, + u32 ce_ctrl_addr, + u64 addr) { + u32 addr_hi = upper_32_bits(addr) & CE_DESC_ADDR_HI_MASK; + ath10k_ce_write32(ar, ce_ctrl_addr + - ar->hw_ce_regs->sr_base_addr, addr); + ar->hw_ce_regs->sr_base_addr_hi, addr_hi); } static inline void ath10k_ce_src_ring_size_set(struct ath10k *ar, @@ -313,11 +333,36 @@ static inline u32 ath10k_ce_dest_ring_read_index_get(struct ath10k *ar, } static inline void ath10k_ce_dest_ring_base_addr_set(struct ath10k *ar, - u32 ce_ctrl_addr, - u32 addr) + u32 ce_id, + u64 addr) { + struct ath10k_ce *ce = ath10k_ce_priv(ar); + struct ath10k_ce_pipe *ce_state = &ce->ce_states[ce_id]; + u32 ce_ctrl_addr = ath10k_ce_base_address(ar, ce_id); + u32 addr_lo = lower_32_bits(addr); + + ath10k_ce_write32(ar, ce_ctrl_addr + + ar->hw_ce_regs->dr_base_addr_lo, addr_lo); + + if (ce_state->ops->ce_set_dest_ring_base_addr_hi) { + ce_state->ops->ce_set_dest_ring_base_addr_hi(ar, ce_ctrl_addr, + addr); + } +} + +static void ath10k_ce_set_dest_ring_base_addr_hi(struct ath10k *ar, + u32 ce_ctrl_addr, + u64 addr) +{ + u32 addr_hi = upper_32_bits(addr) & CE_DESC_ADDR_HI_MASK; + u32 reg_value; + + reg_value = ath10k_ce_read32(ar, ce_ctrl_addr + + ar->hw_ce_regs->dr_base_addr_hi); + reg_value &= ~CE_DESC_ADDR_HI_MASK; + reg_value |= addr_hi; ath10k_ce_write32(ar, ce_ctrl_addr + - ar->hw_ce_regs->dr_base_addr, addr); + ar->hw_ce_regs->dr_base_addr_hi, reg_value); } static inline void ath10k_ce_dest_ring_size_set(struct ath10k *ar, @@ -563,7 +608,7 @@ static int _ath10k_ce_send_nolock_64(struct ath10k_ce_pipe *ce_state, addr = (__le32 *)&sdesc.addr; - flags |= upper_32_bits(buffer) & CE_DESC_FLAGS_GET_MASK; + flags |= upper_32_bits(buffer) & CE_DESC_ADDR_HI_MASK; addr[0] = __cpu_to_le32(buffer); addr[1] = __cpu_to_le32(flags); if (flags & CE_SEND_FLAG_GATHER) @@ -731,7 +776,7 @@ static int __ath10k_ce_rx_post_buf_64(struct ath10k_ce_pipe *pipe, return -ENOSPC; desc->addr = __cpu_to_le64(paddr); - desc->addr &= __cpu_to_le64(CE_DESC_37BIT_ADDR_MASK); + desc->addr &= __cpu_to_le64(CE_DESC_ADDR_MASK); desc->nbytes = 0; @@ -1336,7 +1381,7 @@ static int ath10k_ce_init_src_ring(struct ath10k *ar, ath10k_ce_src_ring_write_index_get(ar, ctrl_addr); src_ring->write_index &= src_ring->nentries_mask; - ath10k_ce_src_ring_base_addr_set(ar, ctrl_addr, + ath10k_ce_src_ring_base_addr_set(ar, ce_id, src_ring->base_addr_ce_space); ath10k_ce_src_ring_size_set(ar, ctrl_addr, nentries); ath10k_ce_src_ring_dmax_set(ar, ctrl_addr, attr->src_sz_max); @@ -1375,7 +1420,7 @@ static int ath10k_ce_init_dest_ring(struct ath10k *ar, ath10k_ce_dest_ring_write_index_get(ar, ctrl_addr); dest_ring->write_index &= dest_ring->nentries_mask; - ath10k_ce_dest_ring_base_addr_set(ar, ctrl_addr, + ath10k_ce_dest_ring_base_addr_set(ar, ce_id, dest_ring->base_addr_ce_space); ath10k_ce_dest_ring_size_set(ar, ctrl_addr, nentries); ath10k_ce_dest_ring_byte_swap_set(ar, ctrl_addr, 0); @@ -1659,7 +1704,7 @@ static void ath10k_ce_deinit_src_ring(struct ath10k *ar, unsigned int ce_id) { u32 ctrl_addr = ath10k_ce_base_address(ar, ce_id); - ath10k_ce_src_ring_base_addr_set(ar, ctrl_addr, 0); + ath10k_ce_src_ring_base_addr_set(ar, ce_id, 0); ath10k_ce_src_ring_size_set(ar, ctrl_addr, 0); ath10k_ce_src_ring_dmax_set(ar, ctrl_addr, 0); ath10k_ce_src_ring_highmark_set(ar, ctrl_addr, 0); @@ -1669,7 +1714,7 @@ static void ath10k_ce_deinit_dest_ring(struct ath10k *ar, unsigned int ce_id) { u32 ctrl_addr = ath10k_ce_base_address(ar, ce_id); - ath10k_ce_dest_ring_base_addr_set(ar, ctrl_addr, 0); + ath10k_ce_dest_ring_base_addr_set(ar, ce_id, 0); ath10k_ce_dest_ring_size_set(ar, ctrl_addr, 0); ath10k_ce_dest_ring_highmark_set(ar, ctrl_addr, 0); } @@ -1801,6 +1846,8 @@ static const struct ath10k_ce_ops ce_ops = { .ce_extract_desc_data = ath10k_ce_extract_desc_data, .ce_free_pipe = _ath10k_ce_free_pipe, .ce_send_nolock = _ath10k_ce_send_nolock, + .ce_set_src_ring_base_addr_hi = NULL, + .ce_set_dest_ring_base_addr_hi = NULL, }; static const struct ath10k_ce_ops ce_64_ops = { @@ -1813,6 +1860,8 @@ static const struct ath10k_ce_ops ce_64_ops = { .ce_extract_desc_data = ath10k_ce_extract_desc_data_64, .ce_free_pipe = _ath10k_ce_free_pipe_64, .ce_send_nolock = _ath10k_ce_send_nolock_64, + .ce_set_src_ring_base_addr_hi = ath10k_ce_set_src_ring_base_addr_hi, + .ce_set_dest_ring_base_addr_hi = ath10k_ce_set_dest_ring_base_addr_hi, }; static void ath10k_ce_set_ops(struct ath10k *ar, @@ -1908,7 +1957,7 @@ void ath10k_ce_alloc_rri(struct ath10k *ar) lower_32_bits(ce->paddr_rri)); ath10k_ce_write32(ar, ar->hw_ce_regs->ce_rri_high, (upper_32_bits(ce->paddr_rri) & - CE_DESC_FLAGS_GET_MASK)); + CE_DESC_ADDR_HI_MASK)); for (i = 0; i < CE_COUNT; i++) { ctrl1_regs = ar->hw_ce_regs->ctrl1_regs->addr; diff --git a/drivers/net/wireless/ath/ath10k/ce.h b/drivers/net/wireless/ath/ath10k/ce.h index dbeffaef6024..677b852bfaa2 100644 --- a/drivers/net/wireless/ath/ath10k/ce.h +++ b/drivers/net/wireless/ath/ath10k/ce.h @@ -39,8 +39,8 @@ struct ath10k_ce_pipe; #define CE_DESC_FLAGS_BYTE_SWAP (1 << 1) #define CE_WCN3990_DESC_FLAGS_GATHER BIT(31) -#define CE_DESC_FLAGS_GET_MASK GENMASK(4, 0) -#define CE_DESC_37BIT_ADDR_MASK GENMASK_ULL(37, 0) +#define CE_DESC_ADDR_MASK GENMASK_ULL(34, 0) +#define CE_DESC_ADDR_HI_MASK GENMASK(4, 0) /* Following desc flags are used in QCA99X0 */ #define CE_DESC_FLAGS_HOST_INT_DIS (1 << 2) @@ -104,7 +104,7 @@ struct ath10k_ce_ring { /* Host address space */ void *base_addr_owner_space_unaligned; /* CE address space */ - u32 base_addr_ce_space_unaligned; + dma_addr_t base_addr_ce_space_unaligned; /* * Actual start of descriptors. @@ -115,7 +115,7 @@ struct ath10k_ce_ring { void *base_addr_owner_space; /* CE address space */ - u32 base_addr_ce_space; + dma_addr_t base_addr_ce_space; char *shadow_base_unaligned; struct ce_desc *shadow_base; @@ -331,6 +331,12 @@ struct ath10k_ce_ops { void *per_transfer_context, dma_addr_t buffer, u32 nbytes, u32 transfer_id, u32 flags); + void (*ce_set_src_ring_base_addr_hi)(struct ath10k *ar, + u32 ce_ctrl_addr, + u64 addr); + void (*ce_set_dest_ring_base_addr_hi)(struct ath10k *ar, + u32 ce_ctrl_addr, + u64 addr); }; static inline u32 ath10k_ce_base_address(struct ath10k *ar, unsigned int ce_id) diff --git a/drivers/net/wireless/ath/ath10k/htt_tx.c b/drivers/net/wireless/ath/ath10k/htt_tx.c index 5d8b97a0ccaa..0dcfb8fe8cdd 100644 --- a/drivers/net/wireless/ath/ath10k/htt_tx.c +++ b/drivers/net/wireless/ath/ath10k/htt_tx.c @@ -1359,7 +1359,7 @@ static int ath10k_htt_tx_64(struct ath10k_htt *htt, u16 msdu_id, flags1 = 0; u16 freq = 0; dma_addr_t frags_paddr = 0; - u32 txbuf_paddr; + dma_addr_t txbuf_paddr; struct htt_msdu_ext_desc_64 *ext_desc = NULL; struct htt_msdu_ext_desc_64 *ext_desc_t = NULL; diff --git a/drivers/net/wireless/ath/ath10k/hw.c b/drivers/net/wireless/ath/ath10k/hw.c index 989bd9172b77..aedd631a61cf 100644 --- a/drivers/net/wireless/ath/ath10k/hw.c +++ b/drivers/net/wireless/ath/ath10k/hw.c @@ -317,9 +317,11 @@ static struct ath10k_hw_ce_ctrl1_upd wcn3990_ctrl1_upd = { }; const struct ath10k_hw_ce_regs wcn3990_ce_regs = { - .sr_base_addr = 0x00000000, + .sr_base_addr_lo = 0x00000000, + .sr_base_addr_hi = 0x00000004, .sr_size_addr = 0x00000008, - .dr_base_addr = 0x0000000c, + .dr_base_addr_lo = 0x0000000c, + .dr_base_addr_hi = 0x00000010, .dr_size_addr = 0x00000014, .misc_ie_addr = 0x00000034, .sr_wr_index_addr = 0x0000003c, @@ -464,9 +466,9 @@ static struct ath10k_hw_ce_dst_src_wm_regs qcax_wm_dst_ring = { }; const struct ath10k_hw_ce_regs qcax_ce_regs = { - .sr_base_addr = 0x00000000, + .sr_base_addr_lo = 0x00000000, .sr_size_addr = 0x00000004, - .dr_base_addr = 0x00000008, + .dr_base_addr_lo = 0x00000008, .dr_size_addr = 0x0000000c, .ce_cmd_addr = 0x00000018, .misc_ie_addr = 0x00000034, diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h index 13e885f046d5..8f513d798a0e 100644 --- a/drivers/net/wireless/ath/ath10k/hw.h +++ b/drivers/net/wireless/ath/ath10k/hw.h @@ -343,9 +343,11 @@ struct ath10k_hw_ce_ctrl1_upd { }; struct ath10k_hw_ce_regs { - u32 sr_base_addr; + u32 sr_base_addr_lo; + u32 sr_base_addr_hi; u32 sr_size_addr; - u32 dr_base_addr; + u32 dr_base_addr_lo; + u32 dr_base_addr_hi; u32 dr_size_addr; u32 ce_cmd_addr; u32 misc_ie_addr; diff --git a/drivers/net/wireless/ath/ath10k/snoc.c b/drivers/net/wireless/ath/ath10k/snoc.c index 865916223d91..4ce1c5c5575e 100644 --- a/drivers/net/wireless/ath/ath10k/snoc.c +++ b/drivers/net/wireless/ath/ath10k/snoc.c @@ -65,7 +65,7 @@ static void ath10k_snoc_htt_htc_rx_cb(struct ath10k_ce_pipe *ce_state); static const struct ath10k_snoc_drv_priv drv_priv = { .hw_rev = ATH10K_HW_WCN3990, - .dma_mask = DMA_BIT_MASK(37), + .dma_mask = DMA_BIT_MASK(35), .msa_size = 0x100000, };