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From: Denis Orlov <denorl2009@gmail.com>
To: barebox@lists.infradead.org
Cc: Denis Orlov <denorl2009@gmail.com>
Subject: [PATCH 11/16] ata: ahci: use 64-bit addressing if available
Date: Wed,  4 May 2022 12:25:48 +0300	[thread overview]
Message-ID: <20220504092553.27961-11-denorl2009@gmail.com> (raw)
In-Reply-To: <20220504092553.27961-1-denorl2009@gmail.com>

Signed-off-by: Denis Orlov <denorl2009@gmail.com>
---
 drivers/ata/ahci.c | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index ff9093c7b7..d423da3a48 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -117,8 +117,10 @@ static void ahci_fill_cmd_slot(struct ahci_port *ahci_port, u32 opts)
 	ahci_port->cmd_slot->opts = cpu_to_le32(opts);
 	ahci_port->cmd_slot->status = 0;
 	ahci_port->cmd_slot->tbl_addr =
-		cpu_to_le32(ahci_port->cmd_tbl_dma & 0xffffffff);
-	ahci_port->cmd_slot->tbl_addr_hi = 0;
+		cpu_to_le32(lower_32_bits(ahci_port->cmd_tbl_dma));
+	if (ahci_port->ahci->cap & HOST_CAP_64)
+		ahci_port->cmd_slot->tbl_addr_hi =
+			cpu_to_le32(upper_32_bits(ahci_port->cmd_tbl_dma));
 }
 
 static int ahci_fill_sg(struct ahci_port *ahci_port, dma_addr_t buf_dma, int buf_len)
@@ -133,8 +135,9 @@ static int ahci_fill_sg(struct ahci_port *ahci_port, dma_addr_t buf_dma, int buf
 	while (buf_len) {
 		unsigned int now = min(AHCI_MAX_DATA_BYTE_COUNT, buf_len);
 
-		ahci_sg->addr = cpu_to_le32(buf_dma);
-		ahci_sg->addr_hi = 0;
+		ahci_sg->addr = cpu_to_le32(lower_32_bits(buf_dma));
+		if (ahci_port->ahci->cap & HOST_CAP_64)
+			ahci_sg->addr_hi = cpu_to_le32(upper_32_bits(buf_dma));
 		ahci_sg->flags_size = cpu_to_le32(now - 1);
 
 		buf_len -= now;
@@ -327,8 +330,12 @@ static int ahci_init_port(struct ahci_port *ahci_port)
 
 	ahci_port->cmd_tbl_sg = ahci_port->cmd_tbl + AHCI_CMD_TBL_HDR_SZ;
 
-	ahci_port_write_f(ahci_port, PORT_LST_ADDR, ahci_port->cmd_slot_dma);
-	ahci_port_write_f(ahci_port, PORT_FIS_ADDR, ahci_port->rx_fis_dma);
+	ahci_port_write_f(ahci_port, PORT_LST_ADDR, lower_32_bits(ahci_port->cmd_slot_dma));
+	if (ahci_port->ahci->cap & HOST_CAP_64)
+		ahci_port_write_f(ahci_port, PORT_LST_ADDR_HI, upper_32_bits(ahci_port->cmd_slot_dma));
+	ahci_port_write_f(ahci_port, PORT_FIS_ADDR, lower_32_bits(ahci_port->rx_fis_dma));
+	if (ahci_port->ahci->cap & HOST_CAP_64)
+		ahci_port_write_f(ahci_port, PORT_FIS_ADDR_HI, upper_32_bits(ahci_port->rx_fis_dma));
 
 	/*
 	 * Add the spinup command to whatever mode bits may
-- 
2.20.1


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  parent reply	other threads:[~2022-05-04  9:43 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-04  9:25 [PATCH 01/16] ata: ahci: use abstract read/write functions uniformly Denis Orlov
2022-05-04  9:25 ` [PATCH 02/16] ata: ahci: replace magic numbers with named constants Denis Orlov
2022-05-04  9:25 ` [PATCH 03/16] ata: ahci: fix missing whitespace in ahci_add_host() Denis Orlov
2022-05-04  9:25 ` [PATCH 04/16] ata: ahci: simplify fis structure creation Denis Orlov
2022-05-04  9:25 ` [PATCH 05/16] ata: ahci: do not ignore dma handles Denis Orlov
2022-05-04  9:25 ` [PATCH 06/16] ata: ahci: adjust debug messages in ahci_init_port() Denis Orlov
2022-05-04  9:25 ` [PATCH 07/16] ata: ahci: correct named constants values and names Denis Orlov
2022-05-04  9:25 ` [PATCH 08/16] ata: ahci: properly fill scatter/gather table Denis Orlov
2022-05-04  9:25 ` [PATCH 09/16] ata: ahci: use named constants for capabilities bits Denis Orlov
2022-05-04  9:25 ` [PATCH 10/16] ata: ahci: map buffers properly Denis Orlov
2022-05-04  9:25 ` Denis Orlov [this message]
2022-05-04  9:25 ` [PATCH 12/16] ata: ahci: make rx_fis field in ahci_port of type void* Denis Orlov
2022-05-04  9:25 ` [PATCH 13/16] ata: ahci: add missing capability in ahci_print_info() Denis Orlov
2022-05-04  9:25 ` [PATCH 14/16] ata: ahci: remove redundant cast in ahci_io() Denis Orlov
2022-05-04  9:25 ` [PATCH 15/16] ata: ahci: register only implemented ports Denis Orlov
2022-05-04  9:25 ` [PATCH 16/16] ata: ahci: allocate memory in one call in ahci_init_port() Denis Orlov
2022-05-05  7:48 ` [PATCH 01/16] ata: ahci: use abstract read/write functions uniformly Sascha Hauer

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