diff mbox series

[05/11] ath11k: configure copy engine msi address in CE srng

Message ID 1597389030-13887-6-git-send-email-kvalo@codeaurora.org (mailing list archive)
State Accepted
Commit c4eacabee22415194e8cc7e8dd4913897b058927
Delegated to: Kalle Valo
Headers show
Series ath11k: firmware and board file support for PCI devices | expand

Commit Message

Kalle Valo Aug. 14, 2020, 7:10 a.m. UTC 
From: Govind Singh <govinds@codeaurora.org>

Fill msi base address and msi data to be programmed in CE srang.
This is used by the srng to generate the msi interrupt.

Needed for PCI support.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath11k/ce.c  | 30 ++++++++++++++++++++++++++++++
 drivers/net/wireless/ath/ath11k/hal.h |  2 ++
 drivers/net/wireless/ath/ath11k/hif.h | 26 ++++++++++++++++++++++++++
 drivers/net/wireless/ath/ath11k/pci.c | 25 +++++++++++++++++++++++++
 4 files changed, 83 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/wireless/ath/ath11k/ce.c b/drivers/net/wireless/ath/ath11k/ce.c
index 2fff171b35f8..a457fe7f7049 100644
--- a/drivers/net/wireless/ath/ath11k/ce.c
+++ b/drivers/net/wireless/ath/ath11k/ce.c
@@ -5,6 +5,7 @@ 
 
 #include "dp_rx.h"
 #include "debug.h"
+#include "hif.h"
 
 static const struct ce_attr host_ce_config_wlan[] = {
 	/* CE0: host->target HTC control and raw streams */
@@ -352,6 +353,31 @@  static void ath11k_ce_send_done_cb(struct ath11k_ce_pipe *pipe)
 	}
 }
 
+static void ath11k_ce_srng_msi_ring_params_setup(struct ath11k_base *ab, u32 ce_id,
+						 struct hal_srng_params *ring_params)
+{
+	u32 msi_data_start;
+	u32 msi_data_count;
+	u32 msi_irq_start;
+	u32 addr_lo;
+	u32 addr_hi;
+	int ret;
+
+	ret = ath11k_get_user_msi_vector(ab, "CE",
+					 &msi_data_count, &msi_data_start,
+					 &msi_irq_start);
+
+	if (ret)
+		return;
+
+	ath11k_get_msi_address(ab, &addr_lo, &addr_hi);
+
+	ring_params->msi_addr = addr_lo;
+	ring_params->msi_addr |= (dma_addr_t)(((uint64_t)addr_hi) << 32);
+	ring_params->msi_data = (ce_id % msi_data_count) + msi_data_start;
+	ring_params->flags |= HAL_SRNG_FLAGS_MSI_INTR;
+}
+
 static int ath11k_ce_init_ring(struct ath11k_base *ab,
 			       struct ath11k_ce_ring *ce_ring,
 			       int ce_id, enum hal_ring_type type)
@@ -395,6 +421,10 @@  static int ath11k_ce_init_ring(struct ath11k_base *ab,
 			    ret, ce_id);
 		return ret;
 	}
+
+	if (!(CE_ATTR_DIS_INTR & host_ce_config_wlan[ce_id].flags))
+		ath11k_ce_srng_msi_ring_params_setup(ab, ce_id, &params);
+
 	ce_ring->hal_ring_id = ret;
 
 	return 0;
diff --git a/drivers/net/wireless/ath/ath11k/hal.h b/drivers/net/wireless/ath/ath11k/hal.h
index 780a3e11b609..6d9a6938870c 100644
--- a/drivers/net/wireless/ath/ath11k/hal.h
+++ b/drivers/net/wireless/ath/ath11k/hal.h
@@ -458,6 +458,8 @@  struct hal_srng_params {
 	u32 flags;
 	u32 max_buffer_len;
 	u32 low_threshold;
+	dma_addr_t msi_addr;
+	u32 msi_data;
 
 	/* Add more params as needed */
 };
diff --git a/drivers/net/wireless/ath/ath11k/hif.h b/drivers/net/wireless/ath/ath11k/hif.h
index 48ee55cebc81..dbe5568916e8 100644
--- a/drivers/net/wireless/ath/ath11k/hif.h
+++ b/drivers/net/wireless/ath/ath11k/hif.h
@@ -19,6 +19,11 @@  struct ath11k_hif_ops {
 	void (*power_down)(struct ath11k_base *sc);
 	int (*map_service_to_pipe)(struct ath11k_base *sc, u16 service_id,
 				   u8 *ul_pipe, u8 *dl_pipe);
+	int (*get_user_msi_vector)(struct ath11k_base *ab, char *user_name,
+				   int *num_vectors, u32 *user_base_data,
+				   u32 *base_vector);
+	void (*get_msi_address)(struct ath11k_base *ab, u32 *msi_addr_lo,
+				u32 *msi_addr_hi);
 };
 
 static inline int ath11k_hif_start(struct ath11k_base *sc)
@@ -66,4 +71,25 @@  static inline int ath11k_hif_map_service_to_pipe(struct ath11k_base *sc, u16 ser
 {
 	return sc->hif.ops->map_service_to_pipe(sc, service_id, ul_pipe, dl_pipe);
 }
+
+static inline int ath11k_get_user_msi_vector(struct ath11k_base *ab, char *user_name,
+					     int *num_vectors, u32 *user_base_data,
+					     u32 *base_vector)
+{
+	if (!ab->hif.ops->get_user_msi_vector)
+		return -EOPNOTSUPP;
+
+	return ab->hif.ops->get_user_msi_vector(ab, user_name, num_vectors,
+						user_base_data,
+						base_vector);
+}
+
+static inline void ath11k_get_msi_address(struct ath11k_base *ab, u32 *msi_addr_lo,
+					  u32 *msi_addr_hi)
+{
+	if (!ab->hif.ops->get_msi_address)
+		return;
+
+	ab->hif.ops->get_msi_address(ab, msi_addr_lo, msi_addr_hi);
+}
 #endif /* _HIF_H_ */
diff --git a/drivers/net/wireless/ath/ath11k/pci.c b/drivers/net/wireless/ath/ath11k/pci.c
index 10c281ece3d4..af08f0542867 100644
--- a/drivers/net/wireless/ath/ath11k/pci.c
+++ b/drivers/net/wireless/ath/ath11k/pci.c
@@ -339,6 +339,18 @@  int ath11k_pci_get_msi_irq(struct device *dev, unsigned int vector)
 	return pci_irq_vector(pci_dev, vector);
 }
 
+static void ath11k_pci_get_msi_address(struct ath11k_base *ab, u32 *msi_addr_lo,
+				       u32 *msi_addr_hi)
+{
+	struct pci_dev *pci_dev = to_pci_dev(ab->dev);
+
+	pci_read_config_dword(pci_dev, pci_dev->msi_cap + PCI_MSI_ADDRESS_LO,
+			      msi_addr_lo);
+
+	pci_read_config_dword(pci_dev, pci_dev->msi_cap + PCI_MSI_ADDRESS_HI,
+			      msi_addr_hi);
+}
+
 int ath11k_pci_get_user_msi_assignment(struct ath11k_pci *ab_pci, char *user_name,
 				       int *num_vectors, u32 *user_base_data,
 				       u32 *base_vector)
@@ -366,6 +378,17 @@  int ath11k_pci_get_user_msi_assignment(struct ath11k_pci *ab_pci, char *user_nam
 	return -EINVAL;
 }
 
+static int ath11k_get_user_msi_assignment(struct ath11k_base *ab, char *user_name,
+					  int *num_vectors, u32 *user_base_data,
+					  u32 *base_vector)
+{
+	struct ath11k_pci *ab_pci = ath11k_pci_priv(ab);
+
+	return ath11k_pci_get_user_msi_assignment(ab_pci, user_name,
+						  num_vectors, user_base_data,
+						  base_vector);
+}
+
 static void ath11k_pci_free_irq(struct ath11k_base *ab)
 {
 	int i, irq_idx;
@@ -634,6 +657,8 @@  static const struct ath11k_hif_ops ath11k_pci_hif_ops = {
 	.write32 = ath11k_pci_write32,
 	.power_down = ath11k_pci_power_down,
 	.power_up = ath11k_pci_power_up,
+	.get_msi_address =  ath11k_pci_get_msi_address,
+	.get_user_msi_vector = ath11k_get_user_msi_assignment,
 };
 
 static int ath11k_pci_probe(struct pci_dev *pdev,