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[RFC v4 1/3] hw/cxl: Add CXL_CAPACITY_MULTIPLIER definition
From: |
Gregory Price |
Subject: |
[RFC v4 1/3] hw/cxl: Add CXL_CAPACITY_MULTIPLIER definition |
Date: |
Mon, 28 Nov 2022 10:01:55 -0500 |
From: Gregory Price <gourry.memverge@gmail.com>
Remove usage of magic numbers when accessing capacity fields and replace
with CXL_CAPACITY_MULTIPLIER, matching the kernel definition.
Signed-off-by: Gregory Price <gregory.price@memverge.com>
Reviewed-by: Davidlohr Bueso <dave@stgolabs.net>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Jonathan Cameron <jonathan.cameron@huawei.com>
---
hw/cxl/cxl-mailbox-utils.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/hw/cxl/cxl-mailbox-utils.c b/hw/cxl/cxl-mailbox-utils.c
index 3e23d29e2d..d7543fd5b4 100644
--- a/hw/cxl/cxl-mailbox-utils.c
+++ b/hw/cxl/cxl-mailbox-utils.c
@@ -15,6 +15,8 @@
#include "qemu/log.h"
#include "qemu/uuid.h"
+#define CXL_CAPACITY_MULTIPLIER 0x10000000 /* SZ_256M */
+
/*
* How to add a new command, example. The command set FOO, with cmd BAR.
* 1. Add the command set and cmd to the enum.
@@ -267,7 +269,7 @@ static ret_code cmd_firmware_update_get_info(struct cxl_cmd
*cmd,
} QEMU_PACKED *fw_info;
QEMU_BUILD_BUG_ON(sizeof(*fw_info) != 0x50);
- if (cxl_dstate->pmem_size < (256 << 20)) {
+ if (cxl_dstate->pmem_size < CXL_CAPACITY_MULTIPLIER) {
return CXL_MBOX_INTERNAL_ERROR;
}
@@ -412,7 +414,7 @@ static ret_code cmd_identify_memory_device(struct cxl_cmd
*cmd,
CXLType3Class *cvc = CXL_TYPE3_GET_CLASS(ct3d);
uint64_t size = cxl_dstate->pmem_size;
- if (!QEMU_IS_ALIGNED(size, 256 << 20)) {
+ if (!QEMU_IS_ALIGNED(size, CXL_CAPACITY_MULTIPLIER)) {
return CXL_MBOX_INTERNAL_ERROR;
}
@@ -422,8 +424,8 @@ static ret_code cmd_identify_memory_device(struct cxl_cmd
*cmd,
/* PMEM only */
snprintf(id->fw_revision, 0x10, "BWFW VERSION %02d", 0);
- id->total_capacity = size / (256 << 20);
- id->persistent_capacity = size / (256 << 20);
+ id->total_capacity = size / CXL_CAPACITY_MULTIPLIER;
+ id->persistent_capacity = size / CXL_CAPACITY_MULTIPLIER;
id->lsa_size = cvc->get_lsa_size(ct3d);
id->poison_list_max_mer[1] = 0x1; /* 256 poison records */
@@ -444,14 +446,14 @@ static ret_code cmd_ccls_get_partition_info(struct
cxl_cmd *cmd,
QEMU_BUILD_BUG_ON(sizeof(*part_info) != 0x20);
uint64_t size = cxl_dstate->pmem_size;
- if (!QEMU_IS_ALIGNED(size, 256 << 20)) {
+ if (!QEMU_IS_ALIGNED(size, CXL_CAPACITY_MULTIPLIER)) {
return CXL_MBOX_INTERNAL_ERROR;
}
/* PMEM only */
part_info->active_vmem = 0;
part_info->next_vmem = 0;
- part_info->active_pmem = size / (256 << 20);
+ part_info->active_pmem = size / CXL_CAPACITY_MULTIPLIER;
part_info->next_pmem = 0;
*len = sizeof(*part_info);
--
2.37.3