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75 lines
2.4 KiB
Diff
75 lines
2.4 KiB
Diff
From fb1c40c225cbc413d82c872dd8c8af3469b2b921 Mon Sep 17 00:00:00 2001
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From: Robert Marko <robimarko@gmail.com>
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Date: Fri, 16 Dec 2022 17:17:52 +0100
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Subject: [PATCH] ath11k: support setting FW memory mode via DT
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ath11k is really memory intensive for devices with less that 1GB of RAM,
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so lets allow saving a significant amount of memory by setting the FW to
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Mode-1 via DTS for devices that need it.
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However the drawback is reduced number of VDEV-s and peers which is a
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reasonable tradeoff.
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Mode-2 allows for further reduction, but it has further restrictions.
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While we are here, lets add a print to be able to easily determine what
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FW memory mode is being used.
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Signed-off-by: Robert Marko <robimarko@gmail.com>
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---
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drivers/net/wireless/ath/ath11k/core.c | 28 ++++++++++++++++++++++++--
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1 file changed, 26 insertions(+), 2 deletions(-)
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--- a/drivers/net/wireless/ath/ath11k/core.c
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+++ b/drivers/net/wireless/ath/ath11k/core.c
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@@ -36,7 +36,7 @@ bool ath11k_ftm_mode;
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module_param_named(ftm_mode, ath11k_ftm_mode, bool, 0444);
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MODULE_PARM_DESC(ftm_mode, "Boots up in factory test mode");
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-static const struct ath11k_hw_params ath11k_hw_params[] = {
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+static struct ath11k_hw_params ath11k_hw_params[] = {
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{
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.hw_rev = ATH11K_HW_IPQ8074,
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.name = "ipq8074 hw2.0",
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@@ -1954,7 +1954,8 @@ static void ath11k_core_reset(struct wor
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static int ath11k_init_hw_params(struct ath11k_base *ab)
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{
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const struct ath11k_hw_params *hw_params = NULL;
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- int i;
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+ u32 fw_mem_mode;
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+ int i, ret;
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for (i = 0; i < ARRAY_SIZE(ath11k_hw_params); i++) {
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hw_params = &ath11k_hw_params[i];
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@@ -1970,7 +1971,30 @@ static int ath11k_init_hw_params(struct
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ab->hw_params = *hw_params;
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+ ret = of_property_read_u32(ab->dev->of_node,
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+ "qcom,ath11k-fw-memory-mode",
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+ &fw_mem_mode);
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+ if (!ret) {
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+ if (fw_mem_mode == 0) {
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+ ab->hw_params.fw_mem_mode = 0;
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+ ab->hw_params.num_vdevs = 16 + 1;
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+ ab->hw_params.num_peers = 512;
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+ }
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+ else if (fw_mem_mode == 1) {
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+ ab->hw_params.fw_mem_mode = 1;
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+ ab->hw_params.num_vdevs = 8;
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+ ab->hw_params.num_peers = 128;
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+ } else if (fw_mem_mode == 2) {
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+ ab->hw_params.fw_mem_mode = 2;
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+ ab->hw_params.num_vdevs = 8;
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+ ab->hw_params.num_peers = 128;
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+ ab->hw_params.cold_boot_calib = false;
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+ } else
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+ ath11k_info(ab, "Unsupported FW memory mode: %u\n", fw_mem_mode);
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+ }
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+
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ath11k_info(ab, "%s\n", ab->hw_params.name);
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+ ath11k_info(ab, "FW memory mode: %d\n", ab->hw_params.fw_mem_mode);
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return 0;
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}
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