diff options
author | BALATON Zoltan <balaton@eik.bme.hu> | 2017-08-20 19:23:05 +0200 |
---|---|---|
committer | David Gibson <david@gibson.dropbear.id.au> | 2017-09-08 09:30:55 +1000 |
commit | 0453428047527ac778489a927b66d591ff3c450c (patch) | |
tree | 475e616de8f68e6a288d14a4bc0e0f9d65804b8a /hw | |
parent | 517284a77171af6f5676678aea15030ea1887842 (diff) |
ppc4xx: Make MAL emulation more generic
Allow MAL with more RX and TX channels as found in newer versions.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'hw')
-rw-r--r-- | hw/ppc/ppc405_uc.c | 2 | ||||
-rw-r--r-- | hw/ppc/ppc4xx_devs.c | 171 |
2 files changed, 68 insertions, 105 deletions
diff --git a/hw/ppc/ppc405_uc.c b/hw/ppc/ppc405_uc.c index 3c744021d6..03856d573f 100644 --- a/hw/ppc/ppc405_uc.c +++ b/hw/ppc/ppc405_uc.c @@ -2281,7 +2281,7 @@ CPUPPCState *ppc405ep_init(MemoryRegion *address_space_mem, mal_irqs[1] = pic[12]; mal_irqs[2] = pic[13]; mal_irqs[3] = pic[14]; - ppc405_mal_init(env, mal_irqs); + ppc4xx_mal_init(env, 4, 2, mal_irqs); /* Ethernet */ /* Uses pic[9], pic[15], pic[17] */ /* CPU control */ diff --git a/hw/ppc/ppc4xx_devs.c b/hw/ppc/ppc4xx_devs.c index b296ea66c2..ec90f13295 100644 --- a/hw/ppc/ppc4xx_devs.c +++ b/hw/ppc/ppc4xx_devs.c @@ -737,6 +737,7 @@ ram_addr_t ppc4xx_sdram_adjust(ram_addr_t ram_size, int nr_banks, /*****************************************************************************/ /* MAL */ + enum { MAL0_CFG = 0x180, MAL0_ESR = 0x181, @@ -750,17 +751,13 @@ enum { MAL0_RXEOBISR = 0x192, MAL0_RXDEIR = 0x193, MAL0_TXCTP0R = 0x1A0, - MAL0_TXCTP1R = 0x1A1, - MAL0_TXCTP2R = 0x1A2, - MAL0_TXCTP3R = 0x1A3, MAL0_RXCTP0R = 0x1C0, - MAL0_RXCTP1R = 0x1C1, MAL0_RCBS0 = 0x1E0, MAL0_RCBS1 = 0x1E1, }; -typedef struct ppc40x_mal_t ppc40x_mal_t; -struct ppc40x_mal_t { +typedef struct ppc4xx_mal_t ppc4xx_mal_t; +struct ppc4xx_mal_t { qemu_irq irqs[4]; uint32_t cfg; uint32_t esr; @@ -773,16 +770,32 @@ struct ppc40x_mal_t { uint32_t rxcarr; uint32_t rxeobisr; uint32_t rxdeir; - uint32_t txctpr[4]; - uint32_t rxctpr[2]; - uint32_t rcbs[2]; + uint32_t *txctpr; + uint32_t *rxctpr; + uint32_t *rcbs; + uint8_t txcnum; + uint8_t rxcnum; }; -static void ppc40x_mal_reset(void *opaque); +static void ppc4xx_mal_reset(void *opaque) +{ + ppc4xx_mal_t *mal; + + mal = opaque; + mal->cfg = 0x0007C000; + mal->esr = 0x00000000; + mal->ier = 0x00000000; + mal->rxcasr = 0x00000000; + mal->rxdeir = 0x00000000; + mal->rxeobisr = 0x00000000; + mal->txcasr = 0x00000000; + mal->txdeir = 0x00000000; + mal->txeobisr = 0x00000000; +} static uint32_t dcr_read_mal(void *opaque, int dcrn) { - ppc40x_mal_t *mal; + ppc4xx_mal_t *mal; uint32_t ret; mal = opaque; @@ -820,48 +833,32 @@ static uint32_t dcr_read_mal(void *opaque, int dcrn) case MAL0_RXDEIR: ret = mal->rxdeir; break; - case MAL0_TXCTP0R: - ret = mal->txctpr[0]; - break; - case MAL0_TXCTP1R: - ret = mal->txctpr[1]; - break; - case MAL0_TXCTP2R: - ret = mal->txctpr[2]; - break; - case MAL0_TXCTP3R: - ret = mal->txctpr[3]; - break; - case MAL0_RXCTP0R: - ret = mal->rxctpr[0]; - break; - case MAL0_RXCTP1R: - ret = mal->rxctpr[1]; - break; - case MAL0_RCBS0: - ret = mal->rcbs[0]; - break; - case MAL0_RCBS1: - ret = mal->rcbs[1]; - break; default: ret = 0; break; } + if (dcrn >= MAL0_TXCTP0R && dcrn < MAL0_TXCTP0R + mal->txcnum) { + ret = mal->txctpr[dcrn - MAL0_TXCTP0R]; + } + if (dcrn >= MAL0_RXCTP0R && dcrn < MAL0_RXCTP0R + mal->rxcnum) { + ret = mal->rxctpr[dcrn - MAL0_RXCTP0R]; + } + if (dcrn >= MAL0_RCBS0 && dcrn < MAL0_RCBS0 + mal->rxcnum) { + ret = mal->rcbs[dcrn - MAL0_RCBS0]; + } return ret; } static void dcr_write_mal(void *opaque, int dcrn, uint32_t val) { - ppc40x_mal_t *mal; - int idx; + ppc4xx_mal_t *mal; mal = opaque; switch (dcrn) { case MAL0_CFG: if (val & 0x80000000) { - ppc40x_mal_reset(mal); + ppc4xx_mal_reset(mal); } mal->cfg = val & 0x00FFC087; break; @@ -900,65 +897,35 @@ static void dcr_write_mal(void *opaque, int dcrn, uint32_t val) /* Read/clear */ mal->rxdeir &= ~val; break; - case MAL0_TXCTP0R: - idx = 0; - goto update_tx_ptr; - case MAL0_TXCTP1R: - idx = 1; - goto update_tx_ptr; - case MAL0_TXCTP2R: - idx = 2; - goto update_tx_ptr; - case MAL0_TXCTP3R: - idx = 3; - update_tx_ptr: - mal->txctpr[idx] = val; - break; - case MAL0_RXCTP0R: - idx = 0; - goto update_rx_ptr; - case MAL0_RXCTP1R: - idx = 1; - update_rx_ptr: - mal->rxctpr[idx] = val; - break; - case MAL0_RCBS0: - idx = 0; - goto update_rx_size; - case MAL0_RCBS1: - idx = 1; - update_rx_size: - mal->rcbs[idx] = val & 0x000000FF; - break; + } + if (dcrn >= MAL0_TXCTP0R && dcrn < MAL0_TXCTP0R + mal->txcnum) { + mal->txctpr[dcrn - MAL0_TXCTP0R] = val; + } + if (dcrn >= MAL0_RXCTP0R && dcrn < MAL0_RXCTP0R + mal->rxcnum) { + mal->rxctpr[dcrn - MAL0_RXCTP0R] = val; + } + if (dcrn >= MAL0_RCBS0 && dcrn < MAL0_RCBS0 + mal->rxcnum) { + mal->rcbs[dcrn - MAL0_RCBS0] = val & 0x000000FF; } } -static void ppc40x_mal_reset(void *opaque) -{ - ppc40x_mal_t *mal; - - mal = opaque; - mal->cfg = 0x0007C000; - mal->esr = 0x00000000; - mal->ier = 0x00000000; - mal->rxcasr = 0x00000000; - mal->rxdeir = 0x00000000; - mal->rxeobisr = 0x00000000; - mal->txcasr = 0x00000000; - mal->txdeir = 0x00000000; - mal->txeobisr = 0x00000000; -} - -void ppc405_mal_init(CPUPPCState *env, qemu_irq irqs[4]) +void ppc4xx_mal_init(CPUPPCState *env, uint8_t txcnum, uint8_t rxcnum, + qemu_irq irqs[4]) { - ppc40x_mal_t *mal; + ppc4xx_mal_t *mal; int i; - mal = g_malloc0(sizeof(ppc40x_mal_t)); + assert(txcnum <= 32 && rxcnum <= 32); + mal = g_malloc0(sizeof(*mal)); + mal->txcnum = txcnum; + mal->rxcnum = rxcnum; + mal->txctpr = g_new0(uint32_t, txcnum); + mal->rxctpr = g_new0(uint32_t, rxcnum); + mal->rcbs = g_new0(uint32_t, rxcnum); for (i = 0; i < 4; i++) { mal->irqs[i] = irqs[i]; } - qemu_register_reset(&ppc40x_mal_reset, mal); + qemu_register_reset(&ppc4xx_mal_reset, mal); ppc_dcr_register(env, MAL0_CFG, mal, &dcr_read_mal, &dcr_write_mal); ppc_dcr_register(env, MAL0_ESR, @@ -981,20 +948,16 @@ void ppc405_mal_init(CPUPPCState *env, qemu_irq irqs[4]) mal, &dcr_read_mal, &dcr_write_mal); ppc_dcr_register(env, MAL0_RXDEIR, mal, &dcr_read_mal, &dcr_write_mal); - ppc_dcr_register(env, MAL0_TXCTP0R, - mal, &dcr_read_mal, &dcr_write_mal); - ppc_dcr_register(env, MAL0_TXCTP1R, - mal, &dcr_read_mal, &dcr_write_mal); - ppc_dcr_register(env, MAL0_TXCTP2R, - mal, &dcr_read_mal, &dcr_write_mal); - ppc_dcr_register(env, MAL0_TXCTP3R, - mal, &dcr_read_mal, &dcr_write_mal); - ppc_dcr_register(env, MAL0_RXCTP0R, - mal, &dcr_read_mal, &dcr_write_mal); - ppc_dcr_register(env, MAL0_RXCTP1R, - mal, &dcr_read_mal, &dcr_write_mal); - ppc_dcr_register(env, MAL0_RCBS0, - mal, &dcr_read_mal, &dcr_write_mal); - ppc_dcr_register(env, MAL0_RCBS1, - mal, &dcr_read_mal, &dcr_write_mal); + for (i = 0; i < txcnum; i++) { + ppc_dcr_register(env, MAL0_TXCTP0R + i, + mal, &dcr_read_mal, &dcr_write_mal); + } + for (i = 0; i < rxcnum; i++) { + ppc_dcr_register(env, MAL0_RXCTP0R + i, + mal, &dcr_read_mal, &dcr_write_mal); + } + for (i = 0; i < rxcnum; i++) { + ppc_dcr_register(env, MAL0_RCBS0 + i, + mal, &dcr_read_mal, &dcr_write_mal); + } } |