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libqos/ahci: Functional register helpers

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Introduce a set of "static inline" register helpers that are intended to
replace the current set of macros with more functional versions that are
better suited to inclusion in libqos than porcelain macros.

As a stopgap measure before eliminating the porcelain macros, define them
to use the new functions defined in the ahci.h header.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1421698563-6977-13-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
John Snow 2015-01-19 15:16:00 -05:00 • committed by Stefan Hajnoczi
parent c12e8293b8
commit 4882f35949
2 changed files with 74 additions and 14 deletions
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63
tests/libqos/ahci.h
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@ -354,4 +354,67 @@ typedef struct PRD {
/* For calculating how big the PRD table needs to be: */
#define CMD_TBL_SIZ(n) ((0x80 + ((n) * sizeof(PRD)) + 0x7F) & ~0x7F)
/* Helpers for reading/writing AHCI HBA register values */
static inline uint32_t ahci_mread(AHCIQState *ahci, size_t offset)
{
return qpci_io_readl(ahci->dev, ahci->hba_base + offset);
}
static inline void ahci_mwrite(AHCIQState *ahci, size_t offset, uint32_t value)
{
qpci_io_writel(ahci->dev, ahci->hba_base + offset, value);
}
static inline uint32_t ahci_rreg(AHCIQState *ahci, uint32_t reg_num)
{
return ahci_mread(ahci, 4 * reg_num);
}
static inline void ahci_wreg(AHCIQState *ahci, uint32_t reg_num, uint32_t value)
{
ahci_mwrite(ahci, 4 * reg_num, value);
}
static inline void ahci_set(AHCIQState *ahci, uint32_t reg_num, uint32_t mask)
{
ahci_wreg(ahci, reg_num, ahci_rreg(ahci, reg_num) | mask);
}
static inline void ahci_clr(AHCIQState *ahci, uint32_t reg_num, uint32_t mask)
{
ahci_wreg(ahci, reg_num, ahci_rreg(ahci, reg_num) & ~mask);
}
static inline size_t ahci_px_offset(uint8_t port, uint32_t reg_num)
{
return AHCI_PORTS + (HBA_PORT_NUM_REG * port) + reg_num;
}
static inline uint32_t ahci_px_rreg(AHCIQState *ahci, uint8_t port,
uint32_t reg_num)
{
return ahci_rreg(ahci, ahci_px_offset(port, reg_num));
}
static inline void ahci_px_wreg(AHCIQState *ahci, uint8_t port,
uint32_t reg_num, uint32_t value)
{
ahci_wreg(ahci, ahci_px_offset(port, reg_num), value);
}
static inline void ahci_px_set(AHCIQState *ahci, uint8_t port,
uint32_t reg_num, uint32_t mask)
{
ahci_px_wreg(ahci, port, reg_num,
ahci_px_rreg(ahci, port, reg_num) | mask);
}
static inline void ahci_px_clr(AHCIQState *ahci, uint8_t port,
uint32_t reg_num, uint32_t mask)
{
ahci_px_wreg(ahci, port, reg_num,
ahci_px_rreg(ahci, port, reg_num) & ~mask);
}
#endif