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FROMLIST: ufs: core: Combine 32-bit command_desc_base_addr_lo/hi

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The UTP command descriptor base address is a 57-bit field in the
UTP transfer request descriptor. Combine the two 32-bit
command_desc_base_addr_lo/hi fields into a 64-bit for better handling
of this field.

Signed-off-by: Bao D. Nguyen <quic_nguyenb@quicinc.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>

Bug: 285631559
Link: https://lore.kernel.org/linux-scsi/4e6f7f5a15000cdae77c3014b477264f57bf572c.1685396241.git.quic_nguyenb@quicinc.com/
Change-Id: Ia976d86b0c8b9e31fd5cd784191ea3eb4eb5c130
Signed-off-by: SEO HOYOUNG <hy50.seo@samsung.com>
This commit is contained in:
Bao D. Nguyen 2023-05-29 15:12:20 -07:00 • committed by Carlos Llamas
parent 8326170bb6
commit 0866848447
2 changed files with 4 additions and 8 deletions
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6
drivers/ufs/core/ufshcd.c
View file

@ -3906,10 +3906,8 @@ static void ufshcd_host_memory_configure(struct ufs_hba *hba)
/* Configure UTRD with command descriptor base address */ /* Configure UTRD with command descriptor base address */
cmd_desc_element_addr = cmd_desc_element_addr =
(cmd_desc_dma_addr + (cmd_desc_size * i)); (cmd_desc_dma_addr + (cmd_desc_size * i));
utrdlp[i].command_desc_base_addr_lo = utrdlp[i].command_desc_base_addr =
cpu_to_le32(lower_32_bits(cmd_desc_element_addr)); cpu_to_le64(cmd_desc_element_addr);
utrdlp[i].command_desc_base_addr_hi =
cpu_to_le32(upper_32_bits(cmd_desc_element_addr));
/* Response upiu and prdt offset should be in double words */ /* Response upiu and prdt offset should be in double words */
if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN) { if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN) {

6
include/ufs/ufshci.h
View file

@ -503,8 +503,7 @@ struct request_desc_header {
/** /**
* struct utp_transfer_req_desc - UTP Transfer Request Descriptor (UTRD) * struct utp_transfer_req_desc - UTP Transfer Request Descriptor (UTRD)
* @header: UTRD header DW-0 to DW-3 * @header: UTRD header DW-0 to DW-3
* @command_desc_base_addr_lo: UCD base address low DW-4 * @command_desc_base_addr: UCD base address DW 4-5
* @command_desc_base_addr_hi: UCD base address high DW-5
* @response_upiu_length: response UPIU length DW-6 * @response_upiu_length: response UPIU length DW-6
* @response_upiu_offset: response UPIU offset DW-6 * @response_upiu_offset: response UPIU offset DW-6
* @prd_table_length: Physical region descriptor length DW-7 * @prd_table_length: Physical region descriptor length DW-7
@ -516,8 +515,7 @@ struct utp_transfer_req_desc {
struct request_desc_header header; struct request_desc_header header;
/* DW 4-5*/ /* DW 4-5*/
__le32 command_desc_base_addr_lo; __le64 command_desc_base_addr;
__le32 command_desc_base_addr_hi;
/* DW 6 */ /* DW 6 */
__le16 response_upiu_length; __le16 response_upiu_length;