| /* |
| * QEMU PowerPC 440 embedded processors emulation |
| * |
| * Copyright (c) 2012 François Revol |
| * Copyright (c) 2016-2019 BALATON Zoltan |
| * |
| * This work is licensed under the GNU GPL license version 2 or later. |
| * |
| */ |
| |
| #include "qemu/osdep.h" |
| #include "qemu/units.h" |
| #include "qapi/error.h" |
| #include "qemu/log.h" |
| #include "hw/irq.h" |
| #include "hw/ppc/ppc4xx.h" |
| #include "hw/pci-host/ppc4xx.h" |
| #include "hw/qdev-properties.h" |
| #include "hw/pci/pci.h" |
| #include "sysemu/reset.h" |
| #include "cpu.h" |
| #include "ppc440.h" |
| |
| /*****************************************************************************/ |
| /* L2 Cache as SRAM */ |
| /* FIXME:fix names */ |
| enum { |
| DCR_L2CACHE_BASE = 0x30, |
| DCR_L2CACHE_CFG = DCR_L2CACHE_BASE, |
| DCR_L2CACHE_CMD, |
| DCR_L2CACHE_ADDR, |
| DCR_L2CACHE_DATA, |
| DCR_L2CACHE_STAT, |
| DCR_L2CACHE_CVER, |
| DCR_L2CACHE_SNP0, |
| DCR_L2CACHE_SNP1, |
| DCR_L2CACHE_END = DCR_L2CACHE_SNP1, |
| }; |
| |
| /* base is 460ex-specific, cf. U-Boot, ppc4xx-isram.h */ |
| enum { |
| DCR_ISRAM0_BASE = 0x20, |
| DCR_ISRAM0_SB0CR = DCR_ISRAM0_BASE, |
| DCR_ISRAM0_SB1CR, |
| DCR_ISRAM0_SB2CR, |
| DCR_ISRAM0_SB3CR, |
| DCR_ISRAM0_BEAR, |
| DCR_ISRAM0_BESR0, |
| DCR_ISRAM0_BESR1, |
| DCR_ISRAM0_PMEG, |
| DCR_ISRAM0_CID, |
| DCR_ISRAM0_REVID, |
| DCR_ISRAM0_DPC, |
| DCR_ISRAM0_END = DCR_ISRAM0_DPC |
| }; |
| |
| enum { |
| DCR_ISRAM1_BASE = 0xb0, |
| DCR_ISRAM1_SB0CR = DCR_ISRAM1_BASE, |
| /* single bank */ |
| DCR_ISRAM1_BEAR = DCR_ISRAM1_BASE + 0x04, |
| DCR_ISRAM1_BESR0, |
| DCR_ISRAM1_BESR1, |
| DCR_ISRAM1_PMEG, |
| DCR_ISRAM1_CID, |
| DCR_ISRAM1_REVID, |
| DCR_ISRAM1_DPC, |
| DCR_ISRAM1_END = DCR_ISRAM1_DPC |
| }; |
| |
| typedef struct ppc4xx_l2sram_t { |
| MemoryRegion bank[4]; |
| uint32_t l2cache[8]; |
| uint32_t isram0[11]; |
| } ppc4xx_l2sram_t; |
| |
| static uint32_t dcr_read_l2sram(void *opaque, int dcrn) |
| { |
| ppc4xx_l2sram_t *l2sram = opaque; |
| uint32_t ret = 0; |
| |
| switch (dcrn) { |
| case DCR_L2CACHE_CFG: |
| case DCR_L2CACHE_CMD: |
| case DCR_L2CACHE_ADDR: |
| case DCR_L2CACHE_DATA: |
| case DCR_L2CACHE_STAT: |
| case DCR_L2CACHE_CVER: |
| case DCR_L2CACHE_SNP0: |
| case DCR_L2CACHE_SNP1: |
| ret = l2sram->l2cache[dcrn - DCR_L2CACHE_BASE]; |
| break; |
| |
| case DCR_ISRAM0_SB0CR: |
| case DCR_ISRAM0_SB1CR: |
| case DCR_ISRAM0_SB2CR: |
| case DCR_ISRAM0_SB3CR: |
| case DCR_ISRAM0_BEAR: |
| case DCR_ISRAM0_BESR0: |
| case DCR_ISRAM0_BESR1: |
| case DCR_ISRAM0_PMEG: |
| case DCR_ISRAM0_CID: |
| case DCR_ISRAM0_REVID: |
| case DCR_ISRAM0_DPC: |
| ret = l2sram->isram0[dcrn - DCR_ISRAM0_BASE]; |
| break; |
| |
| default: |
| break; |
| } |
| |
| return ret; |
| } |
| |
| static void dcr_write_l2sram(void *opaque, int dcrn, uint32_t val) |
| { |
| /*ppc4xx_l2sram_t *l2sram = opaque;*/ |
| /* FIXME: Actually handle L2 cache mapping */ |
| |
| switch (dcrn) { |
| case DCR_L2CACHE_CFG: |
| case DCR_L2CACHE_CMD: |
| case DCR_L2CACHE_ADDR: |
| case DCR_L2CACHE_DATA: |
| case DCR_L2CACHE_STAT: |
| case DCR_L2CACHE_CVER: |
| case DCR_L2CACHE_SNP0: |
| case DCR_L2CACHE_SNP1: |
| /*l2sram->l2cache[dcrn - DCR_L2CACHE_BASE] = val;*/ |
| break; |
| |
| case DCR_ISRAM0_SB0CR: |
| case DCR_ISRAM0_SB1CR: |
| case DCR_ISRAM0_SB2CR: |
| case DCR_ISRAM0_SB3CR: |
| case DCR_ISRAM0_BEAR: |
| case DCR_ISRAM0_BESR0: |
| case DCR_ISRAM0_BESR1: |
| case DCR_ISRAM0_PMEG: |
| case DCR_ISRAM0_CID: |
| case DCR_ISRAM0_REVID: |
| case DCR_ISRAM0_DPC: |
| /*l2sram->isram0[dcrn - DCR_L2CACHE_BASE] = val;*/ |
| break; |
| |
| case DCR_ISRAM1_SB0CR: |
| case DCR_ISRAM1_BEAR: |
| case DCR_ISRAM1_BESR0: |
| case DCR_ISRAM1_BESR1: |
| case DCR_ISRAM1_PMEG: |
| case DCR_ISRAM1_CID: |
| case DCR_ISRAM1_REVID: |
| case DCR_ISRAM1_DPC: |
| /*l2sram->isram1[dcrn - DCR_L2CACHE_BASE] = val;*/ |
| break; |
| } |
| } |
| |
| static void l2sram_reset(void *opaque) |
| { |
| ppc4xx_l2sram_t *l2sram = opaque; |
| |
| memset(l2sram->l2cache, 0, sizeof(l2sram->l2cache)); |
| l2sram->l2cache[DCR_L2CACHE_STAT - DCR_L2CACHE_BASE] = 0x80000000; |
| memset(l2sram->isram0, 0, sizeof(l2sram->isram0)); |
| } |
| |
| void ppc4xx_l2sram_init(CPUPPCState *env) |
| { |
| ppc4xx_l2sram_t *l2sram; |
| |
| l2sram = g_malloc0(sizeof(*l2sram)); |
| /* XXX: Size is 4*64kB for 460ex, cf. U-Boot, ppc4xx-isram.h */ |
| memory_region_init_ram(&l2sram->bank[0], NULL, "ppc4xx.l2sram_bank0", |
| 64 * KiB, &error_abort); |
| memory_region_init_ram(&l2sram->bank[1], NULL, "ppc4xx.l2sram_bank1", |
| 64 * KiB, &error_abort); |
| memory_region_init_ram(&l2sram->bank[2], NULL, "ppc4xx.l2sram_bank2", |
| 64 * KiB, &error_abort); |
| memory_region_init_ram(&l2sram->bank[3], NULL, "ppc4xx.l2sram_bank3", |
| 64 * KiB, &error_abort); |
| qemu_register_reset(&l2sram_reset, l2sram); |
| ppc_dcr_register(env, DCR_L2CACHE_CFG, |
| l2sram, &dcr_read_l2sram, &dcr_write_l2sram); |
| ppc_dcr_register(env, DCR_L2CACHE_CMD, |
| l2sram, &dcr_read_l2sram, &dcr_write_l2sram); |
| ppc_dcr_register(env, DCR_L2CACHE_ADDR, |
| l2sram, &dcr_read_l2sram, &dcr_write_l2sram); |
| ppc_dcr_register(env, DCR_L2CACHE_DATA, |
| l2sram, &dcr_read_l2sram, &dcr_write_l2sram); |
| ppc_dcr_register(env, DCR_L2CACHE_STAT, |
| l2sram, &dcr_read_l2sram, &dcr_write_l2sram); |
| ppc_dcr_register(env, DCR_L2CACHE_CVER, |
| l2sram, &dcr_read_l2sram, &dcr_write_l2sram); |
| ppc_dcr_register(env, DCR_L2CACHE_SNP0, |
| l2sram, &dcr_read_l2sram, &dcr_write_l2sram); |
| ppc_dcr_register(env, DCR_L2CACHE_SNP1, |
| l2sram, &dcr_read_l2sram, &dcr_write_l2sram); |
| |
| ppc_dcr_register(env, DCR_ISRAM0_SB0CR, |
| l2sram, &dcr_read_l2sram, &dcr_write_l2sram); |
| ppc_dcr_register(env, DCR_ISRAM0_SB1CR, |
| l2sram, &dcr_read_l2sram, &dcr_write_l2sram); |
| ppc_dcr_register(env, DCR_ISRAM0_SB2CR, |
| l2sram, &dcr_read_l2sram, &dcr_write_l2sram); |
| ppc_dcr_register(env, DCR_ISRAM0_SB3CR, |
| l2sram, &dcr_read_l2sram, &dcr_write_l2sram); |
| ppc_dcr_register(env, DCR_ISRAM0_PMEG, |
| l2sram, &dcr_read_l2sram, &dcr_write_l2sram); |
| ppc_dcr_register(env, DCR_ISRAM0_DPC, |
| l2sram, &dcr_read_l2sram, &dcr_write_l2sram); |
| |
| ppc_dcr_register(env, DCR_ISRAM1_SB0CR, |
| l2sram, &dcr_read_l2sram, &dcr_write_l2sram); |
| ppc_dcr_register(env, DCR_ISRAM1_PMEG, |
| l2sram, &dcr_read_l2sram, &dcr_write_l2sram); |
| ppc_dcr_register(env, DCR_ISRAM1_DPC, |
| l2sram, &dcr_read_l2sram, &dcr_write_l2sram); |
| } |
| |
| /*****************************************************************************/ |
| /* Clocking Power on Reset */ |
| enum { |
| CPR0_CFGADDR = 0xC, |
| CPR0_CFGDATA = 0xD, |
| |
| CPR0_PLLD = 0x060, |
| CPR0_PLBED = 0x080, |
| CPR0_OPBD = 0x0C0, |
| CPR0_PERD = 0x0E0, |
| CPR0_AHBD = 0x100, |
| }; |
| |
| typedef struct ppc4xx_cpr_t { |
| uint32_t addr; |
| } ppc4xx_cpr_t; |
| |
| static uint32_t dcr_read_cpr(void *opaque, int dcrn) |
| { |
| ppc4xx_cpr_t *cpr = opaque; |
| uint32_t ret = 0; |
| |
| switch (dcrn) { |
| case CPR0_CFGADDR: |
| ret = cpr->addr; |
| break; |
| case CPR0_CFGDATA: |
| switch (cpr->addr) { |
| case CPR0_PLLD: |
| ret = (0xb5 << 24) | (1 << 16) | (9 << 8); |
| break; |
| case CPR0_PLBED: |
| ret = (5 << 24); |
| break; |
| case CPR0_OPBD: |
| ret = (2 << 24); |
| break; |
| case CPR0_PERD: |
| case CPR0_AHBD: |
| ret = (1 << 24); |
| break; |
| default: |
| break; |
| } |
| break; |
| default: |
| break; |
| } |
| |
| return ret; |
| } |
| |
| static void dcr_write_cpr(void *opaque, int dcrn, uint32_t val) |
| { |
| ppc4xx_cpr_t *cpr = opaque; |
| |
| switch (dcrn) { |
| case CPR0_CFGADDR: |
| cpr->addr = val; |
| break; |
| case CPR0_CFGDATA: |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static void ppc4xx_cpr_reset(void *opaque) |
| { |
| ppc4xx_cpr_t *cpr = opaque; |
| |
| cpr->addr = 0; |
| } |
| |
| void ppc4xx_cpr_init(CPUPPCState *env) |
| { |
| ppc4xx_cpr_t *cpr; |
| |
| cpr = g_malloc0(sizeof(*cpr)); |
| ppc_dcr_register(env, CPR0_CFGADDR, cpr, &dcr_read_cpr, &dcr_write_cpr); |
| ppc_dcr_register(env, CPR0_CFGDATA, cpr, &dcr_read_cpr, &dcr_write_cpr); |
| qemu_register_reset(ppc4xx_cpr_reset, cpr); |
| } |
| |
| /*****************************************************************************/ |
| /* System DCRs */ |
| typedef struct ppc4xx_sdr_t ppc4xx_sdr_t; |
| struct ppc4xx_sdr_t { |
| uint32_t addr; |
| }; |
| |
| enum { |
| SDR0_CFGADDR = 0x00e, |
| SDR0_CFGDATA, |
| SDR0_STRP0 = 0x020, |
| SDR0_STRP1, |
| SDR0_102 = 0x66, |
| SDR0_103, |
| SDR0_128 = 0x80, |
| SDR0_ECID3 = 0x083, |
| SDR0_DDR0 = 0x0e1, |
| SDR0_USB0 = 0x320, |
| }; |
| |
| enum { |
| PESDR0_LOOP = 0x303, |
| PESDR0_RCSSET, |
| PESDR0_RCSSTS, |
| PESDR0_RSTSTA = 0x310, |
| PESDR1_LOOP = 0x343, |
| PESDR1_RCSSET, |
| PESDR1_RCSSTS, |
| PESDR1_RSTSTA = 0x365, |
| }; |
| |
| static uint32_t dcr_read_sdr(void *opaque, int dcrn) |
| { |
| ppc4xx_sdr_t *sdr = opaque; |
| uint32_t ret = 0; |
| |
| switch (dcrn) { |
| case SDR0_CFGADDR: |
| ret = sdr->addr; |
| break; |
| case SDR0_CFGDATA: |
| switch (sdr->addr) { |
| case SDR0_STRP0: |
| ret = (0xb5 << 8) | (1 << 4) | 9; |
| break; |
| case SDR0_STRP1: |
| ret = (5 << 29) | (2 << 26) | (1 << 24); |
| break; |
| case SDR0_ECID3: |
| ret = 1 << 20; /* No Security/Kasumi support */ |
| break; |
| case SDR0_DDR0: |
| ret = SDR0_DDR0_DDRM_ENCODE(1) | SDR0_DDR0_DDRM_DDR1; |
| break; |
| case PESDR0_RCSSET: |
| case PESDR1_RCSSET: |
| ret = (1 << 24) | (1 << 16); |
| break; |
| case PESDR0_RCSSTS: |
| case PESDR1_RCSSTS: |
| ret = (1 << 16) | (1 << 12); |
| break; |
| case PESDR0_RSTSTA: |
| case PESDR1_RSTSTA: |
| ret = 1; |
| break; |
| case PESDR0_LOOP: |
| case PESDR1_LOOP: |
| ret = 1 << 12; |
| break; |
| default: |
| break; |
| } |
| break; |
| default: |
| break; |
| } |
| |
| return ret; |
| } |
| |
| static void dcr_write_sdr(void *opaque, int dcrn, uint32_t val) |
| { |
| ppc4xx_sdr_t *sdr = opaque; |
| |
| switch (dcrn) { |
| case SDR0_CFGADDR: |
| sdr->addr = val; |
| break; |
| case SDR0_CFGDATA: |
| switch (sdr->addr) { |
| case 0x00: /* B0CR */ |
| break; |
| default: |
| break; |
| } |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static void sdr_reset(void *opaque) |
| { |
| ppc4xx_sdr_t *sdr = opaque; |
| |
| sdr->addr = 0; |
| } |
| |
| void ppc4xx_sdr_init(CPUPPCState *env) |
| { |
| ppc4xx_sdr_t *sdr; |
| |
| sdr = g_malloc0(sizeof(*sdr)); |
| qemu_register_reset(&sdr_reset, sdr); |
| ppc_dcr_register(env, SDR0_CFGADDR, |
| sdr, &dcr_read_sdr, &dcr_write_sdr); |
| ppc_dcr_register(env, SDR0_CFGDATA, |
| sdr, &dcr_read_sdr, &dcr_write_sdr); |
| ppc_dcr_register(env, SDR0_102, |
| sdr, &dcr_read_sdr, &dcr_write_sdr); |
| ppc_dcr_register(env, SDR0_103, |
| sdr, &dcr_read_sdr, &dcr_write_sdr); |
| ppc_dcr_register(env, SDR0_128, |
| sdr, &dcr_read_sdr, &dcr_write_sdr); |
| ppc_dcr_register(env, SDR0_USB0, |
| sdr, &dcr_read_sdr, &dcr_write_sdr); |
| } |
| |
| /*****************************************************************************/ |
| /* PLB to AHB bridge */ |
| enum { |
| AHB_TOP = 0xA4, |
| AHB_BOT = 0xA5, |
| }; |
| |
| typedef struct ppc4xx_ahb_t { |
| uint32_t top; |
| uint32_t bot; |
| } ppc4xx_ahb_t; |
| |
| static uint32_t dcr_read_ahb(void *opaque, int dcrn) |
| { |
| ppc4xx_ahb_t *ahb = opaque; |
| uint32_t ret = 0; |
| |
| switch (dcrn) { |
| case AHB_TOP: |
| ret = ahb->top; |
| break; |
| case AHB_BOT: |
| ret = ahb->bot; |
| break; |
| default: |
| break; |
| } |
| |
| return ret; |
| } |
| |
| static void dcr_write_ahb(void *opaque, int dcrn, uint32_t val) |
| { |
| ppc4xx_ahb_t *ahb = opaque; |
| |
| switch (dcrn) { |
| case AHB_TOP: |
| ahb->top = val; |
| break; |
| case AHB_BOT: |
| ahb->bot = val; |
| break; |
| } |
| } |
| |
| static void ppc4xx_ahb_reset(void *opaque) |
| { |
| ppc4xx_ahb_t *ahb = opaque; |
| |
| /* No error */ |
| ahb->top = 0; |
| ahb->bot = 0; |
| } |
| |
| void ppc4xx_ahb_init(CPUPPCState *env) |
| { |
| ppc4xx_ahb_t *ahb; |
| |
| ahb = g_malloc0(sizeof(*ahb)); |
| ppc_dcr_register(env, AHB_TOP, ahb, &dcr_read_ahb, &dcr_write_ahb); |
| ppc_dcr_register(env, AHB_BOT, ahb, &dcr_read_ahb, &dcr_write_ahb); |
| qemu_register_reset(ppc4xx_ahb_reset, ahb); |
| } |
| |
| /*****************************************************************************/ |
| /* DMA controller */ |
| |
| #define DMA0_CR_CE (1 << 31) |
| #define DMA0_CR_PW (1 << 26 | 1 << 25) |
| #define DMA0_CR_DAI (1 << 24) |
| #define DMA0_CR_SAI (1 << 23) |
| #define DMA0_CR_DEC (1 << 2) |
| |
| enum { |
| DMA0_CR = 0x00, |
| DMA0_CT, |
| DMA0_SAH, |
| DMA0_SAL, |
| DMA0_DAH, |
| DMA0_DAL, |
| DMA0_SGH, |
| DMA0_SGL, |
| |
| DMA0_SR = 0x20, |
| DMA0_SGC = 0x23, |
| DMA0_SLP = 0x25, |
| DMA0_POL = 0x26, |
| }; |
| |
| typedef struct { |
| uint32_t cr; |
| uint32_t ct; |
| uint64_t sa; |
| uint64_t da; |
| uint64_t sg; |
| } PPC4xxDmaChnl; |
| |
| typedef struct { |
| int base; |
| PPC4xxDmaChnl ch[4]; |
| uint32_t sr; |
| } PPC4xxDmaState; |
| |
| static uint32_t dcr_read_dma(void *opaque, int dcrn) |
| { |
| PPC4xxDmaState *dma = opaque; |
| uint32_t val = 0; |
| int addr = dcrn - dma->base; |
| int chnl = addr / 8; |
| |
| switch (addr) { |
| case 0x00 ... 0x1f: |
| switch (addr % 8) { |
| case DMA0_CR: |
| val = dma->ch[chnl].cr; |
| break; |
| case DMA0_CT: |
| val = dma->ch[chnl].ct; |
| break; |
| case DMA0_SAH: |
| val = dma->ch[chnl].sa >> 32; |
| break; |
| case DMA0_SAL: |
| val = dma->ch[chnl].sa; |
| break; |
| case DMA0_DAH: |
| val = dma->ch[chnl].da >> 32; |
| break; |
| case DMA0_DAL: |
| val = dma->ch[chnl].da; |
| break; |
| case DMA0_SGH: |
| val = dma->ch[chnl].sg >> 32; |
| break; |
| case DMA0_SGL: |
| val = dma->ch[chnl].sg; |
| break; |
| } |
| break; |
| case DMA0_SR: |
| val = dma->sr; |
| break; |
| default: |
| qemu_log_mask(LOG_UNIMP, "%s: unimplemented register %x (%d, %x)\n", |
| __func__, dcrn, chnl, addr); |
| } |
| |
| return val; |
| } |
| |
| static void dcr_write_dma(void *opaque, int dcrn, uint32_t val) |
| { |
| PPC4xxDmaState *dma = opaque; |
| int addr = dcrn - dma->base; |
| int chnl = addr / 8; |
| |
| switch (addr) { |
| case 0x00 ... 0x1f: |
| switch (addr % 8) { |
| case DMA0_CR: |
| dma->ch[chnl].cr = val; |
| if (val & DMA0_CR_CE) { |
| int count = dma->ch[chnl].ct & 0xffff; |
| |
| if (count) { |
| int width, i, sidx, didx; |
| uint8_t *rptr, *wptr; |
| hwaddr rlen, wlen; |
| hwaddr xferlen; |
| |
| sidx = didx = 0; |
| width = 1 << ((val & DMA0_CR_PW) >> 25); |
| xferlen = count * width; |
| wlen = rlen = xferlen; |
| rptr = cpu_physical_memory_map(dma->ch[chnl].sa, &rlen, |
| false); |
| wptr = cpu_physical_memory_map(dma->ch[chnl].da, &wlen, |
| true); |
| if (rptr && rlen == xferlen && wptr && wlen == xferlen) { |
| if (!(val & DMA0_CR_DEC) && |
| val & DMA0_CR_SAI && val & DMA0_CR_DAI) { |
| /* optimise common case */ |
| memmove(wptr, rptr, count * width); |
| sidx = didx = count * width; |
| } else { |
| /* do it the slow way */ |
| for (sidx = didx = i = 0; i < count; i++) { |
| uint64_t v = ldn_le_p(rptr + sidx, width); |
| stn_le_p(wptr + didx, width, v); |
| if (val & DMA0_CR_SAI) { |
| sidx += width; |
| } |
| if (val & DMA0_CR_DAI) { |
| didx += width; |
| } |
| } |
| } |
| } |
| if (wptr) { |
| cpu_physical_memory_unmap(wptr, wlen, 1, didx); |
| } |
| if (rptr) { |
| cpu_physical_memory_unmap(rptr, rlen, 0, sidx); |
| } |
| } |
| } |
| break; |
| case DMA0_CT: |
| dma->ch[chnl].ct = val; |
| break; |
| case DMA0_SAH: |
| dma->ch[chnl].sa &= 0xffffffffULL; |
| dma->ch[chnl].sa |= (uint64_t)val << 32; |
| break; |
| case DMA0_SAL: |
| dma->ch[chnl].sa &= 0xffffffff00000000ULL; |
| dma->ch[chnl].sa |= val; |
| break; |
| case DMA0_DAH: |
| dma->ch[chnl].da &= 0xffffffffULL; |
| dma->ch[chnl].da |= (uint64_t)val << 32; |
| break; |
| case DMA0_DAL: |
| dma->ch[chnl].da &= 0xffffffff00000000ULL; |
| dma->ch[chnl].da |= val; |
| break; |
| case DMA0_SGH: |
| dma->ch[chnl].sg &= 0xffffffffULL; |
| dma->ch[chnl].sg |= (uint64_t)val << 32; |
| break; |
| case DMA0_SGL: |
| dma->ch[chnl].sg &= 0xffffffff00000000ULL; |
| dma->ch[chnl].sg |= val; |
| break; |
| } |
| break; |
| case DMA0_SR: |
| dma->sr &= ~val; |
| break; |
| default: |
| qemu_log_mask(LOG_UNIMP, "%s: unimplemented register %x (%d, %x)\n", |
| __func__, dcrn, chnl, addr); |
| } |
| } |
| |
| static void ppc4xx_dma_reset(void *opaque) |
| { |
| PPC4xxDmaState *dma = opaque; |
| int dma_base = dma->base; |
| |
| memset(dma, 0, sizeof(*dma)); |
| dma->base = dma_base; |
| } |
| |
| void ppc4xx_dma_init(CPUPPCState *env, int dcr_base) |
| { |
| PPC4xxDmaState *dma; |
| int i; |
| |
| dma = g_malloc0(sizeof(*dma)); |
| dma->base = dcr_base; |
| qemu_register_reset(&ppc4xx_dma_reset, dma); |
| for (i = 0; i < 4; i++) { |
| ppc_dcr_register(env, dcr_base + i * 8 + DMA0_CR, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, dcr_base + i * 8 + DMA0_CT, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, dcr_base + i * 8 + DMA0_SAH, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, dcr_base + i * 8 + DMA0_SAL, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, dcr_base + i * 8 + DMA0_DAH, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, dcr_base + i * 8 + DMA0_DAL, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, dcr_base + i * 8 + DMA0_SGH, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, dcr_base + i * 8 + DMA0_SGL, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| } |
| ppc_dcr_register(env, dcr_base + DMA0_SR, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, dcr_base + DMA0_SGC, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, dcr_base + DMA0_SLP, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| ppc_dcr_register(env, dcr_base + DMA0_POL, |
| dma, &dcr_read_dma, &dcr_write_dma); |
| } |
| |
| /*****************************************************************************/ |
| /* PCI Express controller */ |
| /* |
| * FIXME: This is not complete and does not work, only implemented partially |
| * to allow firmware and guests to find an empty bus. Cards should use PCI. |
| */ |
| #include "hw/pci/pcie_host.h" |
| |
| OBJECT_DECLARE_SIMPLE_TYPE(PPC460EXPCIEState, PPC460EX_PCIE_HOST) |
| |
| struct PPC460EXPCIEState { |
| PCIExpressHost parent_obj; |
| |
| MemoryRegion busmem; |
| MemoryRegion iomem; |
| qemu_irq irq[4]; |
| int32_t num; |
| int32_t dcrn_base; |
| PowerPCCPU *cpu; |
| |
| uint64_t cfg_base; |
| uint32_t cfg_mask; |
| uint64_t msg_base; |
| uint32_t msg_mask; |
| uint64_t omr1_base; |
| uint64_t omr1_mask; |
| uint64_t omr2_base; |
| uint64_t omr2_mask; |
| uint64_t omr3_base; |
| uint64_t omr3_mask; |
| uint64_t reg_base; |
| uint32_t reg_mask; |
| uint32_t special; |
| uint32_t cfg; |
| }; |
| |
| enum { |
| PEGPL_CFGBAH = 0x0, |
| PEGPL_CFGBAL, |
| PEGPL_CFGMSK, |
| PEGPL_MSGBAH, |
| PEGPL_MSGBAL, |
| PEGPL_MSGMSK, |
| PEGPL_OMR1BAH, |
| PEGPL_OMR1BAL, |
| PEGPL_OMR1MSKH, |
| PEGPL_OMR1MSKL, |
| PEGPL_OMR2BAH, |
| PEGPL_OMR2BAL, |
| PEGPL_OMR2MSKH, |
| PEGPL_OMR2MSKL, |
| PEGPL_OMR3BAH, |
| PEGPL_OMR3BAL, |
| PEGPL_OMR3MSKH, |
| PEGPL_OMR3MSKL, |
| PEGPL_REGBAH, |
| PEGPL_REGBAL, |
| PEGPL_REGMSK, |
| PEGPL_SPECIAL, |
| PEGPL_CFG, |
| }; |
| |
| static uint32_t dcr_read_pcie(void *opaque, int dcrn) |
| { |
| PPC460EXPCIEState *s = opaque; |
| uint32_t ret = 0; |
| |
| switch (dcrn - s->dcrn_base) { |
| case PEGPL_CFGBAH: |
| ret = s->cfg_base >> 32; |
| break; |
| case PEGPL_CFGBAL: |
| ret = s->cfg_base; |
| break; |
| case PEGPL_CFGMSK: |
| ret = s->cfg_mask; |
| break; |
| case PEGPL_MSGBAH: |
| ret = s->msg_base >> 32; |
| break; |
| case PEGPL_MSGBAL: |
| ret = s->msg_base; |
| break; |
| case PEGPL_MSGMSK: |
| ret = s->msg_mask; |
| break; |
| case PEGPL_OMR1BAH: |
| ret = s->omr1_base >> 32; |
| break; |
| case PEGPL_OMR1BAL: |
| ret = s->omr1_base; |
| break; |
| case PEGPL_OMR1MSKH: |
| ret = s->omr1_mask >> 32; |
| break; |
| case PEGPL_OMR1MSKL: |
| ret = s->omr1_mask; |
| break; |
| case PEGPL_OMR2BAH: |
| ret = s->omr2_base >> 32; |
| break; |
| case PEGPL_OMR2BAL: |
| ret = s->omr2_base; |
| break; |
| case PEGPL_OMR2MSKH: |
| ret = s->omr2_mask >> 32; |
| break; |
| case PEGPL_OMR2MSKL: |
| ret = s->omr3_mask; |
| break; |
| case PEGPL_OMR3BAH: |
| ret = s->omr3_base >> 32; |
| break; |
| case PEGPL_OMR3BAL: |
| ret = s->omr3_base; |
| break; |
| case PEGPL_OMR3MSKH: |
| ret = s->omr3_mask >> 32; |
| break; |
| case PEGPL_OMR3MSKL: |
| ret = s->omr3_mask; |
| break; |
| case PEGPL_REGBAH: |
| ret = s->reg_base >> 32; |
| break; |
| case PEGPL_REGBAL: |
| ret = s->reg_base; |
| break; |
| case PEGPL_REGMSK: |
| ret = s->reg_mask; |
| break; |
| case PEGPL_SPECIAL: |
| ret = s->special; |
| break; |
| case PEGPL_CFG: |
| ret = s->cfg; |
| break; |
| } |
| |
| return ret; |
| } |
| |
| static void dcr_write_pcie(void *opaque, int dcrn, uint32_t val) |
| { |
| PPC460EXPCIEState *s = opaque; |
| uint64_t size; |
| |
| switch (dcrn - s->dcrn_base) { |
| case PEGPL_CFGBAH: |
| s->cfg_base = ((uint64_t)val << 32) | (s->cfg_base & 0xffffffff); |
| break; |
| case PEGPL_CFGBAL: |
| s->cfg_base = (s->cfg_base & 0xffffffff00000000ULL) | val; |
| break; |
| case PEGPL_CFGMSK: |
| s->cfg_mask = val; |
| size = ~(val & 0xfffffffe) + 1; |
| /* |
| * Firmware sets this register to E0000001. Why we are not sure, |
| * but the current guess is anything above PCIE_MMCFG_SIZE_MAX is |
| * ignored. |
| */ |
| if (size > PCIE_MMCFG_SIZE_MAX) { |
| size = PCIE_MMCFG_SIZE_MAX; |
| } |
| pcie_host_mmcfg_update(PCIE_HOST_BRIDGE(s), val & 1, s->cfg_base, size); |
| break; |
| case PEGPL_MSGBAH: |
| s->msg_base = ((uint64_t)val << 32) | (s->msg_base & 0xffffffff); |
| break; |
| case PEGPL_MSGBAL: |
| s->msg_base = (s->msg_base & 0xffffffff00000000ULL) | val; |
| break; |
| case PEGPL_MSGMSK: |
| s->msg_mask = val; |
| break; |
| case PEGPL_OMR1BAH: |
| s->omr1_base = ((uint64_t)val << 32) | (s->omr1_base & 0xffffffff); |
| break; |
| case PEGPL_OMR1BAL: |
| s->omr1_base = (s->omr1_base & 0xffffffff00000000ULL) | val; |
| break; |
| case PEGPL_OMR1MSKH: |
| s->omr1_mask = ((uint64_t)val << 32) | (s->omr1_mask & 0xffffffff); |
| break; |
| case PEGPL_OMR1MSKL: |
| s->omr1_mask = (s->omr1_mask & 0xffffffff00000000ULL) | val; |
| break; |
| case PEGPL_OMR2BAH: |
| s->omr2_base = ((uint64_t)val << 32) | (s->omr2_base & 0xffffffff); |
| break; |
| case PEGPL_OMR2BAL: |
| s->omr2_base = (s->omr2_base & 0xffffffff00000000ULL) | val; |
| break; |
| case PEGPL_OMR2MSKH: |
| s->omr2_mask = ((uint64_t)val << 32) | (s->omr2_mask & 0xffffffff); |
| break; |
| case PEGPL_OMR2MSKL: |
| s->omr2_mask = (s->omr2_mask & 0xffffffff00000000ULL) | val; |
| break; |
| case PEGPL_OMR3BAH: |
| s->omr3_base = ((uint64_t)val << 32) | (s->omr3_base & 0xffffffff); |
| break; |
| case PEGPL_OMR3BAL: |
| s->omr3_base = (s->omr3_base & 0xffffffff00000000ULL) | val; |
| break; |
| case PEGPL_OMR3MSKH: |
| s->omr3_mask = ((uint64_t)val << 32) | (s->omr3_mask & 0xffffffff); |
| break; |
| case PEGPL_OMR3MSKL: |
| s->omr3_mask = (s->omr3_mask & 0xffffffff00000000ULL) | val; |
| break; |
| case PEGPL_REGBAH: |
| s->reg_base = ((uint64_t)val << 32) | (s->reg_base & 0xffffffff); |
| break; |
| case PEGPL_REGBAL: |
| s->reg_base = (s->reg_base & 0xffffffff00000000ULL) | val; |
| break; |
| case PEGPL_REGMSK: |
| s->reg_mask = val; |
| /* FIXME: how is size encoded? */ |
| size = (val == 0x7001 ? 4096 : ~(val & 0xfffffffe) + 1); |
| break; |
| case PEGPL_SPECIAL: |
| s->special = val; |
| break; |
| case PEGPL_CFG: |
| s->cfg = val; |
| break; |
| } |
| } |
| |
| static void ppc460ex_set_irq(void *opaque, int irq_num, int level) |
| { |
| PPC460EXPCIEState *s = opaque; |
| qemu_set_irq(s->irq[irq_num], level); |
| } |
| |
| #define PPC440_PCIE_DCR(s, dcrn) \ |
| ppc_dcr_register(&(s)->cpu->env, (s)->dcrn_base + (dcrn), (s), \ |
| &dcr_read_pcie, &dcr_write_pcie) |
| |
| |
| static void ppc460ex_pcie_register_dcrs(PPC460EXPCIEState *s) |
| { |
| PPC440_PCIE_DCR(s, PEGPL_CFGBAH); |
| PPC440_PCIE_DCR(s, PEGPL_CFGBAL); |
| PPC440_PCIE_DCR(s, PEGPL_CFGMSK); |
| PPC440_PCIE_DCR(s, PEGPL_MSGBAH); |
| PPC440_PCIE_DCR(s, PEGPL_MSGBAL); |
| PPC440_PCIE_DCR(s, PEGPL_MSGMSK); |
| PPC440_PCIE_DCR(s, PEGPL_OMR1BAH); |
| PPC440_PCIE_DCR(s, PEGPL_OMR1BAL); |
| PPC440_PCIE_DCR(s, PEGPL_OMR1MSKH); |
| PPC440_PCIE_DCR(s, PEGPL_OMR1MSKL); |
| PPC440_PCIE_DCR(s, PEGPL_OMR2BAH); |
| PPC440_PCIE_DCR(s, PEGPL_OMR2BAL); |
| PPC440_PCIE_DCR(s, PEGPL_OMR2MSKH); |
| PPC440_PCIE_DCR(s, PEGPL_OMR2MSKL); |
| PPC440_PCIE_DCR(s, PEGPL_OMR3BAH); |
| PPC440_PCIE_DCR(s, PEGPL_OMR3BAL); |
| PPC440_PCIE_DCR(s, PEGPL_OMR3MSKH); |
| PPC440_PCIE_DCR(s, PEGPL_OMR3MSKL); |
| PPC440_PCIE_DCR(s, PEGPL_REGBAH); |
| PPC440_PCIE_DCR(s, PEGPL_REGBAL); |
| PPC440_PCIE_DCR(s, PEGPL_REGMSK); |
| PPC440_PCIE_DCR(s, PEGPL_SPECIAL); |
| PPC440_PCIE_DCR(s, PEGPL_CFG); |
| } |
| |
| static void ppc460ex_pcie_realize(DeviceState *dev, Error **errp) |
| { |
| PPC460EXPCIEState *s = PPC460EX_PCIE_HOST(dev); |
| PCIHostState *pci = PCI_HOST_BRIDGE(dev); |
| int i; |
| char buf[20]; |
| |
| if (!s->cpu) { |
| error_setg(errp, "cpu link property must be set"); |
| return; |
| } |
| if (s->num < 0 || s->dcrn_base < 0) { |
| error_setg(errp, "busnum and dcrn-base properties must be set"); |
| return; |
| } |
| snprintf(buf, sizeof(buf), "pcie%d-mem", s->num); |
| memory_region_init(&s->busmem, OBJECT(s), buf, UINT64_MAX); |
| snprintf(buf, sizeof(buf), "pcie%d-io", s->num); |
| memory_region_init(&s->iomem, OBJECT(s), buf, 64 * KiB); |
| for (i = 0; i < 4; i++) { |
| sysbus_init_irq(SYS_BUS_DEVICE(dev), &s->irq[i]); |
| } |
| snprintf(buf, sizeof(buf), "pcie.%d", s->num); |
| pci->bus = pci_register_root_bus(DEVICE(s), buf, ppc460ex_set_irq, |
| pci_swizzle_map_irq_fn, s, &s->busmem, |
| &s->iomem, 0, 4, TYPE_PCIE_BUS); |
| ppc460ex_pcie_register_dcrs(s); |
| } |
| |
| static Property ppc460ex_pcie_props[] = { |
| DEFINE_PROP_INT32("busnum", PPC460EXPCIEState, num, -1), |
| DEFINE_PROP_INT32("dcrn-base", PPC460EXPCIEState, dcrn_base, -1), |
| DEFINE_PROP_LINK("cpu", PPC460EXPCIEState, cpu, TYPE_POWERPC_CPU, |
| PowerPCCPU *), |
| DEFINE_PROP_END_OF_LIST(), |
| }; |
| |
| static void ppc460ex_pcie_class_init(ObjectClass *klass, void *data) |
| { |
| DeviceClass *dc = DEVICE_CLASS(klass); |
| |
| set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); |
| dc->realize = ppc460ex_pcie_realize; |
| device_class_set_props(dc, ppc460ex_pcie_props); |
| dc->hotpluggable = false; |
| } |
| |
| static const TypeInfo ppc460ex_pcie_host_info = { |
| .name = TYPE_PPC460EX_PCIE_HOST, |
| .parent = TYPE_PCIE_HOST_BRIDGE, |
| .instance_size = sizeof(PPC460EXPCIEState), |
| .class_init = ppc460ex_pcie_class_init, |
| }; |
| |
| static void ppc460ex_pcie_register(void) |
| { |
| type_register_static(&ppc460ex_pcie_host_info); |
| } |
| |
| type_init(ppc460ex_pcie_register) |
