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[PATCH v5 2/5] hw/nvme: use symbolic names for registers
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From: |
Klaus Jensen |
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Subject: |
[PATCH v5 2/5] hw/nvme: use symbolic names for registers |
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Date: |
Tue, 20 Jul 2021 00:46:44 +0200 |
From: Klaus Jensen <k.jensen@samsung.com>
Add the NvmeBarRegs enum and use these instead of explicit register
offsets.
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
include/block/nvme.h | 29 ++++++++++++++++++++++++++++-
hw/nvme/ctrl.c | 44 ++++++++++++++++++++++----------------------
2 files changed, 50 insertions(+), 23 deletions(-)
diff --git a/include/block/nvme.h b/include/block/nvme.h
index 84053b68b987..77aae0117494 100644
--- a/include/block/nvme.h
+++ b/include/block/nvme.h
@@ -9,7 +9,7 @@ typedef struct QEMU_PACKED NvmeBar {
uint32_t cc;
uint8_t rsvd24[4];
uint32_t csts;
- uint32_t nssrc;
+ uint32_t nssr;
uint32_t aqa;
uint64_t asq;
uint64_t acq;
@@ -31,6 +31,33 @@ typedef struct QEMU_PACKED NvmeBar {
uint8_t css[484];
} NvmeBar;
+enum NvmeBarRegs {
+ NVME_REG_CAP = offsetof(NvmeBar, cap),
+ NVME_REG_VS = offsetof(NvmeBar, vs),
+ NVME_REG_INTMS = offsetof(NvmeBar, intms),
+ NVME_REG_INTMC = offsetof(NvmeBar, intmc),
+ NVME_REG_CC = offsetof(NvmeBar, cc),
+ NVME_REG_CSTS = offsetof(NvmeBar, csts),
+ NVME_REG_NSSR = offsetof(NvmeBar, nssr),
+ NVME_REG_AQA = offsetof(NvmeBar, aqa),
+ NVME_REG_ASQ = offsetof(NvmeBar, asq),
+ NVME_REG_ACQ = offsetof(NvmeBar, acq),
+ NVME_REG_CMBLOC = offsetof(NvmeBar, cmbloc),
+ NVME_REG_CMBSZ = offsetof(NvmeBar, cmbsz),
+ NVME_REG_BPINFO = offsetof(NvmeBar, bpinfo),
+ NVME_REG_BPRSEL = offsetof(NvmeBar, bprsel),
+ NVME_REG_BPMBL = offsetof(NvmeBar, bpmbl),
+ NVME_REG_CMBMSC = offsetof(NvmeBar, cmbmsc),
+ NVME_REG_CMBSTS = offsetof(NvmeBar, cmbsts),
+ NVME_REG_PMRCAP = offsetof(NvmeBar, pmrcap),
+ NVME_REG_PMRCTL = offsetof(NvmeBar, pmrctl),
+ NVME_REG_PMRSTS = offsetof(NvmeBar, pmrsts),
+ NVME_REG_PMREBS = offsetof(NvmeBar, pmrebs),
+ NVME_REG_PMRSWTP = offsetof(NvmeBar, pmrswtp),
+ NVME_REG_PMRMSCL = offsetof(NvmeBar, pmrmscl),
+ NVME_REG_PMRMSCU = offsetof(NvmeBar, pmrmscu),
+};
+
enum NvmeCapShift {
CAP_MQES_SHIFT = 0,
CAP_CQR_SHIFT = 16,
diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c
index 28299c6f3764..8c305315f41c 100644
--- a/hw/nvme/ctrl.c
+++ b/hw/nvme/ctrl.c
@@ -5740,7 +5740,7 @@ static void nvme_write_bar(NvmeCtrl *n, hwaddr offset,
uint64_t data,
}
switch (offset) {
- case 0xc: /* INTMS */
+ case NVME_REG_INTMS:
if (unlikely(msix_enabled(&(n->parent_obj)))) {
NVME_GUEST_ERR(pci_nvme_ub_mmiowr_intmask_with_msix,
"undefined access to interrupt mask set"
@@ -5752,7 +5752,7 @@ static void nvme_write_bar(NvmeCtrl *n, hwaddr offset,
uint64_t data,
trace_pci_nvme_mmio_intm_set(data & 0xffffffff, n->bar.intmc);
nvme_irq_check(n);
break;
- case 0x10: /* INTMC */
+ case NVME_REG_INTMC:
if (unlikely(msix_enabled(&(n->parent_obj)))) {
NVME_GUEST_ERR(pci_nvme_ub_mmiowr_intmask_with_msix,
"undefined access to interrupt mask clr"
@@ -5764,7 +5764,7 @@ static void nvme_write_bar(NvmeCtrl *n, hwaddr offset,
uint64_t data,
trace_pci_nvme_mmio_intm_clr(data & 0xffffffff, n->bar.intmc);
nvme_irq_check(n);
break;
- case 0x14: /* CC */
+ case NVME_REG_CC:
trace_pci_nvme_mmio_cfg(data & 0xffffffff);
/* Windows first sends data, then sends enable bit */
if (!NVME_CC_EN(data) && !NVME_CC_EN(n->bar.cc) &&
@@ -5798,7 +5798,7 @@ static void nvme_write_bar(NvmeCtrl *n, hwaddr offset,
uint64_t data,
n->bar.cc = data;
}
break;
- case 0x1c: /* CSTS */
+ case NVME_REG_CSTS:
if (data & (1 << 4)) {
NVME_GUEST_ERR(pci_nvme_ub_mmiowr_ssreset_w1c_unsupported,
"attempted to W1C CSTS.NSSRO"
@@ -5809,7 +5809,7 @@ static void nvme_write_bar(NvmeCtrl *n, hwaddr offset,
uint64_t data,
" of controller status");
}
break;
- case 0x20: /* NSSR */
+ case NVME_REG_NSSR:
if (data == 0x4e564d65) {
trace_pci_nvme_ub_mmiowr_ssreset_unsupported();
} else {
@@ -5817,38 +5817,38 @@ static void nvme_write_bar(NvmeCtrl *n, hwaddr offset,
uint64_t data,
return;
}
break;
- case 0x24: /* AQA */
+ case NVME_REG_AQA:
n->bar.aqa = data & 0xffffffff;
trace_pci_nvme_mmio_aqattr(data & 0xffffffff);
break;
- case 0x28: /* ASQ */
+ case NVME_REG_ASQ:
n->bar.asq = size == 8 ? data :
(n->bar.asq & ~0xffffffffULL) | (data & 0xffffffff);
trace_pci_nvme_mmio_asqaddr(data);
break;
- case 0x2c: /* ASQ hi */
+ case NVME_REG_ASQ + 4:
n->bar.asq = (n->bar.asq & 0xffffffff) | (data << 32);
trace_pci_nvme_mmio_asqaddr_hi(data, n->bar.asq);
break;
- case 0x30: /* ACQ */
+ case NVME_REG_ACQ:
trace_pci_nvme_mmio_acqaddr(data);
n->bar.acq = size == 8 ? data :
(n->bar.acq & ~0xffffffffULL) | (data & 0xffffffff);
break;
- case 0x34: /* ACQ hi */
+ case NVME_REG_ACQ + 4:
n->bar.acq = (n->bar.acq & 0xffffffff) | (data << 32);
trace_pci_nvme_mmio_acqaddr_hi(data, n->bar.acq);
break;
- case 0x38: /* CMBLOC */
+ case NVME_REG_CMBLOC:
NVME_GUEST_ERR(pci_nvme_ub_mmiowr_cmbloc_reserved,
"invalid write to reserved CMBLOC"
" when CMBSZ is zero, ignored");
return;
- case 0x3C: /* CMBSZ */
+ case NVME_REG_CMBSZ:
NVME_GUEST_ERR(pci_nvme_ub_mmiowr_cmbsz_readonly,
"invalid write to read only CMBSZ, ignored");
return;
- case 0x50: /* CMBMSC */
+ case NVME_REG_CMBMSC:
if (!NVME_CAP_CMBS(n->bar.cap)) {
return;
}
@@ -5876,15 +5876,15 @@ static void nvme_write_bar(NvmeCtrl *n, hwaddr offset,
uint64_t data,
}
return;
- case 0x54: /* CMBMSC hi */
+ case NVME_REG_CMBMSC + 4:
n->bar.cmbmsc = (n->bar.cmbmsc & 0xffffffff) | (data << 32);
return;
- case 0xe00: /* PMRCAP */
+ case NVME_REG_PMRCAP:
NVME_GUEST_ERR(pci_nvme_ub_mmiowr_pmrcap_readonly,
"invalid write to PMRCAP register, ignored");
return;
- case 0xe04: /* PMRCTL */
+ case NVME_REG_PMRCTL:
if (!NVME_CAP_PMRS(n->bar.cap)) {
return;
}
@@ -5899,19 +5899,19 @@ static void nvme_write_bar(NvmeCtrl *n, hwaddr offset,
uint64_t data,
n->pmr.cmse = false;
}
return;
- case 0xe08: /* PMRSTS */
+ case NVME_REG_PMRSTS:
NVME_GUEST_ERR(pci_nvme_ub_mmiowr_pmrsts_readonly,
"invalid write to PMRSTS register, ignored");
return;
- case 0xe0C: /* PMREBS */
+ case NVME_REG_PMREBS:
NVME_GUEST_ERR(pci_nvme_ub_mmiowr_pmrebs_readonly,
"invalid write to PMREBS register, ignored");
return;
- case 0xe10: /* PMRSWTP */
+ case NVME_REG_PMRSWTP:
NVME_GUEST_ERR(pci_nvme_ub_mmiowr_pmrswtp_readonly,
"invalid write to PMRSWTP register, ignored");
return;
- case 0xe14: /* PMRMSCL */
+ case NVME_REG_PMRMSCL:
if (!NVME_CAP_PMRS(n->bar.cap)) {
return;
}
@@ -5932,7 +5932,7 @@ static void nvme_write_bar(NvmeCtrl *n, hwaddr offset,
uint64_t data,
}
return;
- case 0xe18: /* PMRMSCU */
+ case NVME_REG_PMRMSCU:
if (!NVME_CAP_PMRS(n->bar.cap)) {
return;
}
@@ -5974,7 +5974,7 @@ static uint64_t nvme_mmio_read(void *opaque, hwaddr addr,
unsigned size)
* from PMRSTS should ensure prior writes
* made it to persistent media
*/
- if (addr == 0xe08 &&
+ if (addr == NVME_REG_PMRSTS &&
(NVME_PMRCAP_PMRWBM(n->bar.pmrcap) & 0x02)) {
memory_region_msync(&n->pmr.dev->mr, 0, n->pmr.dev->size);
}
--
2.32.0