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hv: clean up spinlock wrappers

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- remove the following unnecessary spinlock wrappers
  #define IOMMU_LOCK(u) spinlock_obtain(&((u)->lock))
  #define IOMMU_UNLOCK(u) spinlock_release(&((u)->lock))
- remove the unnecessary comments in vpic.c

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Shiqing Gao
2018-09-12 15:18:15 +08:00
committed by lijinxia
parent 44a2d77c32
commit b1ba12ae1b
2 changed files with 18 additions and 24 deletions
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39
hypervisor/arch/x86/vtd.c
View File

@@ -80,9 +80,6 @@ dmar_set_bitslice(uint64_t var, uint64_t mask,
#define DMAR_MSI_REDIRECTION_CPU (0 << DMAR_MSI_REDIRECTION_SHIFT)
#define DMAR_MSI_REDIRECTION_LOWPRI (1 << DMAR_MSI_REDIRECTION_SHIFT)
#define IOMMU_LOCK(u) spinlock_obtain(&((u)->lock))
#define IOMMU_UNLOCK(u) spinlock_release(&((u)->lock))
#define DMAR_OP_TIMEOUT CYCLES_PER_MS
enum dmar_cirg_type {
@@ -368,7 +365,7 @@ static void dmar_enable_translation(struct dmar_drhd_rt *dmar_uint)
{
uint32_t status;
IOMMU_LOCK(dmar_uint);
spinlock_obtain(&(dmar_uint->lock));
dmar_uint->gcmd |= DMA_GCMD_TE;
iommu_write32(dmar_uint, DMAR_GCMD_REG, dmar_uint->gcmd);
@@ -378,7 +375,7 @@ static void dmar_enable_translation(struct dmar_drhd_rt *dmar_uint)
status = iommu_read32(dmar_uint, DMAR_GSTS_REG);
IOMMU_UNLOCK(dmar_uint);
spinlock_release(&(dmar_uint->lock));
dev_dbg(ACRN_DBG_IOMMU, "%s: gsr:0x%x", __func__, status);
}
@@ -387,7 +384,7 @@ static void dmar_disable_translation(struct dmar_drhd_rt *dmar_uint)
{
uint32_t status;
IOMMU_LOCK(dmar_uint);
spinlock_obtain(&(dmar_uint->lock));
dmar_uint->gcmd &= ~DMA_GCMD_TE;
iommu_write32(dmar_uint, DMAR_GCMD_REG, dmar_uint->gcmd);
@@ -395,7 +392,7 @@ static void dmar_disable_translation(struct dmar_drhd_rt *dmar_uint)
dmar_wait_completion(dmar_uint, DMAR_GSTS_REG, DMA_GSTS_TES, true,
&status);
IOMMU_UNLOCK(dmar_uint);
spinlock_release(&(dmar_uint->lock));
}
static void dmar_register_hrhd(struct dmar_drhd_rt *dmar_uint)
@@ -545,14 +542,14 @@ static void dmar_write_buffer_flush(struct dmar_drhd_rt *dmar_uint)
return;
}
IOMMU_LOCK(dmar_uint);
spinlock_obtain(&(dmar_uint->lock));
iommu_write32(dmar_uint, DMAR_GCMD_REG,
dmar_uint->gcmd | DMA_GCMD_WBF);
/* read lower 32 bits to check */
dmar_wait_completion(dmar_uint, DMAR_GSTS_REG, DMA_GSTS_WBFS, true,
&status);
IOMMU_UNLOCK(dmar_uint);
spinlock_release(&(dmar_uint->lock));
}
/*
@@ -583,13 +580,13 @@ static void dmar_invalid_context_cache(struct dmar_drhd_rt *dmar_uint,
return;
}
IOMMU_LOCK(dmar_uint);
spinlock_obtain(&(dmar_uint->lock));
iommu_write64(dmar_uint, DMAR_CCMD_REG, cmd);
/* read upper 32bits to check */
dmar_wait_completion(dmar_uint, DMAR_CCMD_REG + 4U, DMA_CCMD_ICC_32,
true, &status);
IOMMU_UNLOCK(dmar_uint);
spinlock_release(&(dmar_uint->lock));
dev_dbg(ACRN_DBG_IOMMU, "cc invalidation granularity %d",
dma_ccmd_get_caig_32(status));
@@ -629,7 +626,7 @@ static void dmar_invalid_iotlb(struct dmar_drhd_rt *dmar_uint,
pr_err("unknown IIRG type");
return;
}
IOMMU_LOCK(dmar_uint);
spinlock_obtain(&(dmar_uint->lock));
if (addr != 0U) {
iommu_write64(dmar_uint, dmar_uint->ecap_iotlb_offset, addr);
}
@@ -638,7 +635,7 @@ static void dmar_invalid_iotlb(struct dmar_drhd_rt *dmar_uint,
/* read upper 32bits to check */
dmar_wait_completion(dmar_uint, dmar_uint->ecap_iotlb_offset + 12U,
DMA_IOTLB_IVT_32, true, &status);
IOMMU_UNLOCK(dmar_uint);
spinlock_release(&(dmar_uint->lock));
if (dma_iotlb_get_iaig_32(status) == 0U) {
pr_err("fail to invalidate IOTLB!, 0x%x, 0x%x",
@@ -661,7 +658,7 @@ static void dmar_set_root_table(struct dmar_drhd_rt *dmar_uint)
uint64_t address;
uint32_t status;
IOMMU_LOCK(dmar_uint);
spinlock_obtain(&(dmar_uint->lock));
/* Currently don't support extended root table */
address = dmar_uint->root_table_addr;
@@ -674,21 +671,21 @@ static void dmar_set_root_table(struct dmar_drhd_rt *dmar_uint)
/* 32-bit register */
dmar_wait_completion(dmar_uint, DMAR_GSTS_REG, DMA_GSTS_RTPS, false,
&status);
IOMMU_UNLOCK(dmar_uint);
spinlock_release(&(dmar_uint->lock));
}
static void dmar_fault_event_mask(struct dmar_drhd_rt *dmar_uint)
{
IOMMU_LOCK(dmar_uint);
spinlock_obtain(&(dmar_uint->lock));
iommu_write32(dmar_uint, DMAR_FECTL_REG, DMA_FECTL_IM);
IOMMU_UNLOCK(dmar_uint);
spinlock_release(&(dmar_uint->lock));
}
static void dmar_fault_event_unmask(struct dmar_drhd_rt *dmar_uint)
{
IOMMU_LOCK(dmar_uint);
spinlock_obtain(&(dmar_uint->lock));
iommu_write32(dmar_uint, DMAR_FECTL_REG, 0U);
IOMMU_UNLOCK(dmar_uint);
spinlock_release(&(dmar_uint->lock));
}
static void dmar_fault_msi_write(struct dmar_drhd_rt *dmar_uint,
@@ -704,10 +701,10 @@ static void dmar_fault_msi_write(struct dmar_drhd_rt *dmar_uint,
*/
addr_low = 0xFEE00000U | ((uint32_t)(lapic_id) << 12U);
IOMMU_LOCK(dmar_uint);
spinlock_obtain(&(dmar_uint->lock));
iommu_write32(dmar_uint, DMAR_FEDATA_REG, data);
iommu_write32(dmar_uint, DMAR_FEADDR_REG, addr_low);
IOMMU_UNLOCK(dmar_uint);
spinlock_release(&(dmar_uint->lock));
}
#if DBG_IOMMU

3
hypervisor/dm/vpic.c
View File

@@ -29,9 +29,6 @@
#include <hypervisor.h>
/* TODO: add spinlock_locked support? */
/*#define VPIC_LOCKED(vpic) spinlock_locked(&((vpic)->lock))*/
#define ACRN_DBG_PIC 6U
enum irqstate {