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111 lines
4.1 KiB
111 lines
4.1 KiB
1 year ago
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From ae440308591d445eba5ce38d6404b3095fe11239 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?=C3=8D=C3=B1igo=20Huguet?= <ihuguet@redhat.com>
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Date: Wed, 24 May 2023 15:00:23 +0200
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Subject: [PATCH 015/142] wifi: rtw89: add to dump TX FIFO 0/1 for 8852C
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Bugzilla: https://bugzilla.redhat.com/2207499
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commit 732dd91db3d3a1b7a767598549ffed358c9fbb89
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Author: Ping-Ke Shih <pkshih@realtek.com>
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Date: Fri Sep 30 21:44:17 2022 +0800
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wifi: rtw89: add to dump TX FIFO 0/1 for 8852C
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MAC maintains TX FIFO to transmit packets with meta data to BB layer. To
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debug abnormal transmission, we need to dump the content to dig problem.
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Since FIFO of 8852C locates on different address with different size and
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need additional switch to enable read operation, this patch adds the
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changes accordingly.
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Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
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Signed-off-by: Kalle Valo <kvalo@kernel.org>
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Link: https://lore.kernel.org/r/20220930134417.10282-2-pkshih@realtek.com
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Signed-off-by: Íñigo Huguet <ihuguet@redhat.com>
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---
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drivers/net/wireless/realtek/rtw89/debug.c | 21 +++++++++++++++++++++
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drivers/net/wireless/realtek/rtw89/mac.c | 2 ++
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drivers/net/wireless/realtek/rtw89/mac.h | 4 ++++
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3 files changed, 27 insertions(+)
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diff --git a/drivers/net/wireless/realtek/rtw89/debug.c b/drivers/net/wireless/realtek/rtw89/debug.c
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index f584fa57c82fa..8f27c883eeabb 100644
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--- a/drivers/net/wireless/realtek/rtw89/debug.c
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+++ b/drivers/net/wireless/realtek/rtw89/debug.c
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@@ -774,13 +774,34 @@ rtw89_debug_priv_mac_mem_dump_get(struct seq_file *m, void *v)
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{
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struct rtw89_debugfs_priv *debugfs_priv = m->private;
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struct rtw89_dev *rtwdev = debugfs_priv->rtwdev;
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+ bool grant_read = false;
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+
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+ if (debugfs_priv->mac_mem.sel >= RTW89_MAC_MEM_NUM)
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+ return -ENOENT;
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+
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+ if (rtwdev->chip->chip_id == RTL8852C) {
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+ switch (debugfs_priv->mac_mem.sel) {
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+ case RTW89_MAC_MEM_TXD_FIFO_0_V1:
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+ case RTW89_MAC_MEM_TXD_FIFO_1_V1:
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+ case RTW89_MAC_MEM_TXDATA_FIFO_0:
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+ case RTW89_MAC_MEM_TXDATA_FIFO_1:
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+ grant_read = true;
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+ break;
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+ default:
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+ break;
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+ }
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+ }
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mutex_lock(&rtwdev->mutex);
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rtw89_leave_ps_mode(rtwdev);
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+ if (grant_read)
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+ rtw89_write32_set(rtwdev, R_AX_TCR1, B_AX_TCR_FORCE_READ_TXDFIFO);
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rtw89_debug_dump_mac_mem(m, rtwdev,
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debugfs_priv->mac_mem.sel,
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debugfs_priv->mac_mem.start,
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debugfs_priv->mac_mem.len);
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+ if (grant_read)
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+ rtw89_write32_clr(rtwdev, R_AX_TCR1, B_AX_TCR_FORCE_READ_TXDFIFO);
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mutex_unlock(&rtwdev->mutex);
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return 0;
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diff --git a/drivers/net/wireless/realtek/rtw89/mac.c b/drivers/net/wireless/realtek/rtw89/mac.c
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index 0be7d2ac59397..598568c3f2750 100644
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--- a/drivers/net/wireless/realtek/rtw89/mac.c
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+++ b/drivers/net/wireless/realtek/rtw89/mac.c
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@@ -31,6 +31,8 @@ const u32 rtw89_mac_mem_base_addrs[RTW89_MAC_MEM_NUM] = {
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[RTW89_MAC_MEM_TXDATA_FIFO_1] = TXDATA_FIFO_1_BASE_ADDR,
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[RTW89_MAC_MEM_CPU_LOCAL] = CPU_LOCAL_BASE_ADDR,
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[RTW89_MAC_MEM_BSSID_CAM] = BSSID_CAM_BASE_ADDR,
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+ [RTW89_MAC_MEM_TXD_FIFO_0_V1] = TXD_FIFO_0_BASE_ADDR_V1,
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+ [RTW89_MAC_MEM_TXD_FIFO_1_V1] = TXD_FIFO_1_BASE_ADDR_V1,
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};
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static void rtw89_mac_mem_write(struct rtw89_dev *rtwdev, u32 offset,
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diff --git a/drivers/net/wireless/realtek/rtw89/mac.h b/drivers/net/wireless/realtek/rtw89/mac.h
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index 6f4ada1869a17..a9867ac351da7 100644
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--- a/drivers/net/wireless/realtek/rtw89/mac.h
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+++ b/drivers/net/wireless/realtek/rtw89/mac.h
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@@ -245,6 +245,8 @@ enum rtw89_mac_dbg_port_sel {
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#define BCN_IE_CAM1_BASE_ADDR 0x188A0000
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#define TXD_FIFO_0_BASE_ADDR 0x18856200
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#define TXD_FIFO_1_BASE_ADDR 0x188A1080
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+#define TXD_FIFO_0_BASE_ADDR_V1 0x18856400 /* for 8852C */
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+#define TXD_FIFO_1_BASE_ADDR_V1 0x188A1080 /* for 8852C */
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#define TXDATA_FIFO_0_BASE_ADDR 0x18856000
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#define TXDATA_FIFO_1_BASE_ADDR 0x188A1000
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#define CPU_LOCAL_BASE_ADDR 0x18003000
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@@ -271,6 +273,8 @@ enum rtw89_mac_mem_sel {
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RTW89_MAC_MEM_TXDATA_FIFO_1,
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RTW89_MAC_MEM_CPU_LOCAL,
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RTW89_MAC_MEM_BSSID_CAM,
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+ RTW89_MAC_MEM_TXD_FIFO_0_V1,
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+ RTW89_MAC_MEM_TXD_FIFO_1_V1,
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/* keep last */
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RTW89_MAC_MEM_NUM,
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--
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2.13.6
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