* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
-#include "vl.h"
+#include "hw.h"
+#include "sun4m.h"
/* debug iommu */
//#define DEBUG_IOMMU
#ifdef DEBUG_IOMMU
-#define DPRINTF(fmt, args...) \
-do { printf("IOMMU: " fmt , ##args); } while (0)
+#define DPRINTF(fmt, ...) \
+ do { printf("IOMMU: " fmt , ## __VA_ARGS__); } while (0)
#else
-#define DPRINTF(fmt, args...)
+#define DPRINTF(fmt, ...)
#endif
-#define IOMMU_NREGS (3*4096/4)
+#define IOMMU_NREGS (4*4096/4)
#define IOMMU_CTRL (0x0000 >> 2)
#define IOMMU_CTRL_IMPL 0xf0000000 /* Implementation */
#define IOMMU_CTRL_VERS 0x0f000000 /* Version */
-#define IOMMU_VERSION 0x04000000
#define IOMMU_CTRL_RNGE 0x0000001c /* Mapping RANGE */
#define IOMMU_RNGE_16MB 0x00000000 /* 0xff000000 -> 0xffffffff */
#define IOMMU_RNGE_32MB 0x00000004 /* 0xfe000000 -> 0xffffffff */
#define IOMMU_AFSR (0x1000 >> 2)
#define IOMMU_AFSR_ERR 0x80000000 /* LE, TO, or BE asserted */
-#define IOMMU_AFSR_LE 0x40000000 /* SBUS reports error after transaction */
-#define IOMMU_AFSR_TO 0x20000000 /* Write access took more than 12.8 us. */
-#define IOMMU_AFSR_BE 0x10000000 /* Write access received error acknowledge */
+#define IOMMU_AFSR_LE 0x40000000 /* SBUS reports error after
+ transaction */
+#define IOMMU_AFSR_TO 0x20000000 /* Write access took more than
+ 12.8 us. */
+#define IOMMU_AFSR_BE 0x10000000 /* Write access received error
+ acknowledge */
#define IOMMU_AFSR_SIZE 0x0e000000 /* Size of transaction causing error */
#define IOMMU_AFSR_S 0x01000000 /* Sparc was in supervisor mode */
-#define IOMMU_AFSR_RESV 0x00f00000 /* Reserved, forced to 0x8 by hardware */
+#define IOMMU_AFSR_RESV 0x00800000 /* Reserved, forced to 0x8 by
+ hardware */
#define IOMMU_AFSR_ME 0x00080000 /* Multiple errors occurred */
#define IOMMU_AFSR_RD 0x00040000 /* A read operation was in progress */
#define IOMMU_AFSR_FAV 0x00020000 /* IOMMU afar has valid contents */
+#define IOMMU_AFSR_MASK 0xff0fffff
#define IOMMU_AFAR (0x1004 >> 2)
+#define IOMMU_AER (0x1008 >> 2) /* Arbiter Enable Register */
+#define IOMMU_AER_EN_P0_ARB 0x00000001 /* MBus master 0x8 (Always 1) */
+#define IOMMU_AER_EN_P1_ARB 0x00000002 /* MBus master 0x9 */
+#define IOMMU_AER_EN_P2_ARB 0x00000004 /* MBus master 0xa */
+#define IOMMU_AER_EN_P3_ARB 0x00000008 /* MBus master 0xb */
+#define IOMMU_AER_EN_0 0x00010000 /* SBus slot 0 */
+#define IOMMU_AER_EN_1 0x00020000 /* SBus slot 1 */
+#define IOMMU_AER_EN_2 0x00040000 /* SBus slot 2 */
+#define IOMMU_AER_EN_3 0x00080000 /* SBus slot 3 */
+#define IOMMU_AER_EN_F 0x00100000 /* SBus on-board */
+#define IOMMU_AER_SBW 0x80000000 /* S-to-M asynchronous writes */
+#define IOMMU_AER_MASK 0x801f000f
+
#define IOMMU_SBCFG0 (0x1010 >> 2) /* SBUS configration per-slot */
#define IOMMU_SBCFG1 (0x1014 >> 2) /* SBUS configration per-slot */
#define IOMMU_SBCFG2 (0x1018 >> 2) /* SBUS configration per-slot */
#define IOMMU_SBCFG3 (0x101c >> 2) /* SBUS configration per-slot */
-#define IOMMU_SBCFG_SAB30 0x00010000 /* Phys-address bit 30 when bypass enabled */
+#define IOMMU_SBCFG_SAB30 0x00010000 /* Phys-address bit 30 when
+ bypass enabled */
#define IOMMU_SBCFG_BA16 0x00000004 /* Slave supports 16 byte bursts */
#define IOMMU_SBCFG_BA8 0x00000002 /* Slave supports 8 byte bursts */
#define IOMMU_SBCFG_BYPASS 0x00000001 /* Bypass IOMMU, treat all addresses
- produced by this device as pure
+ produced by this device as pure
physical. */
#define IOMMU_SBCFG_MASK 0x00010003
#define IOMMU_ARBEN_MASK 0x001f0000
#define IOMMU_MID 0x00000008
+#define IOMMU_MASK_ID (0x3018 >> 2) /* Mask ID */
+#define IOMMU_MASK_ID_MASK 0x00ffffff
+
+#define IOMMU_MSII_MASK 0x26000000 /* microSPARC II mask number */
+#define IOMMU_TS_MASK 0x23000000 /* turboSPARC mask number */
+
/* The format of an iopte in the page tables */
-#define IOPTE_PAGE 0x07ffff00 /* Physical page number (PA[30:12]) */
-#define IOPTE_CACHE 0x00000080 /* Cached (in vme IOCACHE or Viking/MXCC) */
+#define IOPTE_PAGE 0xffffff00 /* Physical page number (PA[35:12]) */
+#define IOPTE_CACHE 0x00000080 /* Cached (in vme IOCACHE or
+ Viking/MXCC) */
#define IOPTE_WRITE 0x00000004 /* Writeable */
#define IOPTE_VALID 0x00000002 /* IOPTE is valid */
#define IOPTE_WAZ 0x00000001 /* Write as zeros */
-#define PAGE_SHIFT 12
-#define PAGE_SIZE (1 << PAGE_SHIFT)
-#define PAGE_MASK (PAGE_SIZE - 1)
+#define IOMMU_PAGE_SHIFT 12
+#define IOMMU_PAGE_SIZE (1 << IOMMU_PAGE_SHIFT)
+#define IOMMU_PAGE_MASK ~(IOMMU_PAGE_SIZE - 1)
typedef struct IOMMUState {
- target_phys_addr_t addr;
uint32_t regs[IOMMU_NREGS];
target_phys_addr_t iostart;
+ uint32_t version;
+ qemu_irq irq;
} IOMMUState;
-static uint32_t iommu_mem_readw(void *opaque, target_phys_addr_t addr)
+static uint32_t iommu_mem_readl(void *opaque, target_phys_addr_t addr)
{
IOMMUState *s = opaque;
target_phys_addr_t saddr;
+ uint32_t ret;
- saddr = (addr - s->addr) >> 2;
+ saddr = addr >> 2;
switch (saddr) {
default:
- DPRINTF("read reg[%d] = %x\n", (int)saddr, s->regs[saddr]);
- return s->regs[saddr];
- break;
+ ret = s->regs[saddr];
+ break;
+ case IOMMU_AFAR:
+ case IOMMU_AFSR:
+ ret = s->regs[saddr];
+ qemu_irq_lower(s->irq);
+ break;
}
- return 0;
+ DPRINTF("read reg[%d] = %x\n", (int)saddr, ret);
+ return ret;
}
-static void iommu_mem_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
+static void iommu_mem_writel(void *opaque, target_phys_addr_t addr,
+ uint32_t val)
{
IOMMUState *s = opaque;
target_phys_addr_t saddr;
- saddr = (addr - s->addr) >> 2;
+ saddr = addr >> 2;
DPRINTF("write reg[%d] = %x\n", (int)saddr, val);
switch (saddr) {
case IOMMU_CTRL:
- switch (val & IOMMU_CTRL_RNGE) {
- case IOMMU_RNGE_16MB:
- s->iostart = 0xffffffffff000000ULL;
- break;
- case IOMMU_RNGE_32MB:
- s->iostart = 0xfffffffffe000000ULL;
- break;
- case IOMMU_RNGE_64MB:
- s->iostart = 0xfffffffffc000000ULL;
- break;
- case IOMMU_RNGE_128MB:
- s->iostart = 0xfffffffff8000000ULL;
- break;
- case IOMMU_RNGE_256MB:
- s->iostart = 0xfffffffff0000000ULL;
- break;
- case IOMMU_RNGE_512MB:
- s->iostart = 0xffffffffe0000000ULL;
- break;
- case IOMMU_RNGE_1GB:
- s->iostart = 0xffffffffc0000000ULL;
- break;
- default:
- case IOMMU_RNGE_2GB:
- s->iostart = 0xffffffff80000000ULL;
- break;
- }
- DPRINTF("iostart = " TARGET_FMT_plx "\n", s->iostart);
- s->regs[saddr] = ((val & IOMMU_CTRL_MASK) | IOMMU_VERSION);
- break;
+ switch (val & IOMMU_CTRL_RNGE) {
+ case IOMMU_RNGE_16MB:
+ s->iostart = 0xffffffffff000000ULL;
+ break;
+ case IOMMU_RNGE_32MB:
+ s->iostart = 0xfffffffffe000000ULL;
+ break;
+ case IOMMU_RNGE_64MB:
+ s->iostart = 0xfffffffffc000000ULL;
+ break;
+ case IOMMU_RNGE_128MB:
+ s->iostart = 0xfffffffff8000000ULL;
+ break;
+ case IOMMU_RNGE_256MB:
+ s->iostart = 0xfffffffff0000000ULL;
+ break;
+ case IOMMU_RNGE_512MB:
+ s->iostart = 0xffffffffe0000000ULL;
+ break;
+ case IOMMU_RNGE_1GB:
+ s->iostart = 0xffffffffc0000000ULL;
+ break;
+ default:
+ case IOMMU_RNGE_2GB:
+ s->iostart = 0xffffffff80000000ULL;
+ break;
+ }
+ DPRINTF("iostart = " TARGET_FMT_plx "\n", s->iostart);
+ s->regs[saddr] = ((val & IOMMU_CTRL_MASK) | s->version);
+ break;
case IOMMU_BASE:
- s->regs[saddr] = val & IOMMU_BASE_MASK;
- break;
+ s->regs[saddr] = val & IOMMU_BASE_MASK;
+ break;
case IOMMU_TLBFLUSH:
- DPRINTF("tlb flush %x\n", val);
- s->regs[saddr] = val & IOMMU_TLBFLUSH_MASK;
- break;
+ DPRINTF("tlb flush %x\n", val);
+ s->regs[saddr] = val & IOMMU_TLBFLUSH_MASK;
+ break;
case IOMMU_PGFLUSH:
- DPRINTF("page flush %x\n", val);
- s->regs[saddr] = val & IOMMU_PGFLUSH_MASK;
- break;
+ DPRINTF("page flush %x\n", val);
+ s->regs[saddr] = val & IOMMU_PGFLUSH_MASK;
+ break;
+ case IOMMU_AFAR:
+ s->regs[saddr] = val;
+ qemu_irq_lower(s->irq);
+ break;
+ case IOMMU_AER:
+ s->regs[saddr] = (val & IOMMU_AER_MASK) | IOMMU_AER_EN_P0_ARB;
+ break;
+ case IOMMU_AFSR:
+ s->regs[saddr] = (val & IOMMU_AFSR_MASK) | IOMMU_AFSR_RESV;
+ qemu_irq_lower(s->irq);
+ break;
case IOMMU_SBCFG0:
case IOMMU_SBCFG1:
case IOMMU_SBCFG2:
case IOMMU_SBCFG3:
- s->regs[saddr] = val & IOMMU_SBCFG_MASK;
- break;
+ s->regs[saddr] = val & IOMMU_SBCFG_MASK;
+ break;
case IOMMU_ARBEN:
// XXX implement SBus probing: fault when reading unmapped
// addresses, fault cause and address stored to MMU/IOMMU
- s->regs[saddr] = (val & IOMMU_ARBEN_MASK) | IOMMU_MID;
- break;
+ s->regs[saddr] = (val & IOMMU_ARBEN_MASK) | IOMMU_MID;
+ break;
+ case IOMMU_MASK_ID:
+ s->regs[saddr] |= val & IOMMU_MASK_ID_MASK;
+ break;
default:
- s->regs[saddr] = val;
- break;
+ s->regs[saddr] = val;
+ break;
}
}
static CPUReadMemoryFunc *iommu_mem_read[3] = {
- iommu_mem_readw,
- iommu_mem_readw,
- iommu_mem_readw,
+ NULL,
+ NULL,
+ iommu_mem_readl,
};
static CPUWriteMemoryFunc *iommu_mem_write[3] = {
- iommu_mem_writew,
- iommu_mem_writew,
- iommu_mem_writew,
+ NULL,
+ NULL,
+ iommu_mem_writel,
};
static uint32_t iommu_page_get_flags(IOMMUState *s, target_phys_addr_t addr)
{
- uint32_t iopte, ret;
+ uint32_t ret;
+ target_phys_addr_t iopte;
#ifdef DEBUG_IOMMU
target_phys_addr_t pa = addr;
#endif
iopte = s->regs[IOMMU_BASE] << 4;
addr &= ~s->iostart;
- iopte += (addr >> (PAGE_SHIFT - 2)) & ~3;
- ret = ldl_phys(iopte);
- DPRINTF("get flags addr " TARGET_FMT_plx " => pte %x, *ptes = %x\n", pa,
- iopte, ret);
+ iopte += (addr >> (IOMMU_PAGE_SHIFT - 2)) & ~3;
+ cpu_physical_memory_read(iopte, (uint8_t *)&ret, 4);
+ tswap32s(&ret);
+ DPRINTF("get flags addr " TARGET_FMT_plx " => pte " TARGET_FMT_plx
+ ", *pte = %x\n", pa, iopte, ret);
return ret;
}
-static target_phys_addr_t iommu_translate_pa(IOMMUState *s,
- target_phys_addr_t addr,
+static target_phys_addr_t iommu_translate_pa(target_phys_addr_t addr,
uint32_t pte)
{
uint32_t tmppte;
target_phys_addr_t pa;
tmppte = pte;
- pa = ((pte & IOPTE_PAGE) << 4) + (addr & PAGE_MASK);
+ pa = ((pte & IOPTE_PAGE) << 4) + (addr & ~IOMMU_PAGE_MASK);
DPRINTF("xlate dva " TARGET_FMT_plx " => pa " TARGET_FMT_plx
" (iopte = %x)\n", addr, pa, tmppte);
return pa;
}
-static void iommu_bad_addr(IOMMUState *s, target_phys_addr_t addr, int is_write)
+static void iommu_bad_addr(IOMMUState *s, target_phys_addr_t addr,
+ int is_write)
{
DPRINTF("bad addr " TARGET_FMT_plx "\n", addr);
- s->regs[IOMMU_AFSR] = IOMMU_AFSR_ERR | IOMMU_AFSR_LE | (8 << 20) |
+ s->regs[IOMMU_AFSR] = IOMMU_AFSR_ERR | IOMMU_AFSR_LE | IOMMU_AFSR_RESV |
IOMMU_AFSR_FAV;
if (!is_write)
s->regs[IOMMU_AFSR] |= IOMMU_AFSR_RD;
s->regs[IOMMU_AFAR] = addr;
+ qemu_irq_raise(s->irq);
}
void sparc_iommu_memory_rw(void *opaque, target_phys_addr_t addr,
target_phys_addr_t page, phys_addr;
while (len > 0) {
- page = addr & TARGET_PAGE_MASK;
- l = (page + TARGET_PAGE_SIZE) - addr;
+ page = addr & IOMMU_PAGE_MASK;
+ l = (page + IOMMU_PAGE_SIZE) - addr;
if (l > len)
l = len;
flags = iommu_page_get_flags(opaque, page);
iommu_bad_addr(opaque, page, is_write);
return;
}
- phys_addr = iommu_translate_pa(opaque, addr, flags);
+ phys_addr = iommu_translate_pa(addr, flags);
if (is_write) {
if (!(flags & IOPTE_WRITE)) {
iommu_bad_addr(opaque, page, is_write);
return;
}
- cpu_physical_memory_write(phys_addr, buf, len);
+ cpu_physical_memory_write(phys_addr, buf, l);
} else {
- cpu_physical_memory_read(phys_addr, buf, len);
+ cpu_physical_memory_read(phys_addr, buf, l);
}
len -= l;
buf += l;
int i;
for (i = 0; i < IOMMU_NREGS; i++)
- qemu_put_be32s(f, &s->regs[i]);
+ qemu_put_be32s(f, &s->regs[i]);
qemu_put_be64s(f, &s->iostart);
}
memset(s->regs, 0, IOMMU_NREGS * 4);
s->iostart = 0;
- s->regs[IOMMU_CTRL] = IOMMU_VERSION;
+ s->regs[IOMMU_CTRL] = s->version;
+ s->regs[IOMMU_ARBEN] = IOMMU_MID;
+ s->regs[IOMMU_AFSR] = IOMMU_AFSR_RESV;
+ s->regs[IOMMU_AER] = IOMMU_AER_EN_P0_ARB | IOMMU_AER_EN_P1_ARB;
+ s->regs[IOMMU_MASK_ID] = IOMMU_TS_MASK;
}
-void *iommu_init(target_phys_addr_t addr)
+void *iommu_init(target_phys_addr_t addr, uint32_t version, qemu_irq irq)
{
IOMMUState *s;
int iommu_io_memory;
s = qemu_mallocz(sizeof(IOMMUState));
- if (!s)
- return NULL;
- s->addr = addr;
+ s->version = version;
+ s->irq = irq;
- iommu_io_memory = cpu_register_io_memory(0, iommu_mem_read, iommu_mem_write, s);
+ iommu_io_memory = cpu_register_io_memory(iommu_mem_read,
+ iommu_mem_write, s);
cpu_register_physical_memory(addr, IOMMU_NREGS * 4, iommu_io_memory);
register_savevm("iommu", addr, 2, iommu_save, iommu_load, s);
- qemu_register_reset(iommu_reset, s);
+ qemu_register_reset(iommu_reset, 0, s);
+ iommu_reset(s);
return s;
}
-
projects / qemu.git / blobdiff