[v3,1/6] hw/hppa/dino.c: Improve emulation of Dino PCI chip

Message ID	20191022205941.23152-2-svens@stackframe.org (mailing list archive)
State	New, archived
Headers	show Return-Path: <SRS0=cINr=YP=nongnu.org=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@kernel.org> DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1916A20B7C From: Sven Schnelle <svens@stackframe.org> To: Richard Henderson <rth@twiddle.net> Subject: [PATCH v3 1/6] hw/hppa/dino.c: Improve emulation of Dino PCI chip Date: Tue, 22 Oct 2019 22:59:36 +0200 Message-Id: <20191022205941.23152-2-svens@stackframe.org> In-Reply-To: <20191022205941.23152-1-svens@stackframe.org> References: <20191022205941.23152-1-svens@stackframe.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: list Cc: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= <philmd@redhat.com>, Helge Deller <deller@gmx.de>, Sven Schnelle <svens@stackframe.org>, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" <qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org>
Series	HPPA: i82596, PS/2 and graphics emulation \| expand [v3,0/6] HPPA: i82596, PS/2 and graphics emulation [v3,1/6] hw/hppa/dino.c: Improve emulation of Dino PCI chip [v3,2/6] hppa: Add support for LASI chip with i82596 NIC [v3,4/6] hppa: add emulation of LASI PS2 controllers [v3,5/6] hppa: Add emulation of Artist graphics

diff --git a/MAINTAINERS b/MAINTAINERS index 250ce8e7a1..f9541c3305 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -874,7 +874,7 @@ F: hw/*/etraxfs_*.c HP-PARISC Machines ------------------ -Dino +HP B160L M: Richard Henderson <rth@twiddle.net> R: Helge Deller <deller@gmx.de> S: Odd Fixes diff --git a/hw/hppa/dino.c b/hw/hppa/dino.c index ab6969b45f..9797a7f0d9 100644 --- a/hw/hppa/dino.c +++ b/hw/hppa/dino.c @@ -1,7 +1,7 @@ /* - * HP-PARISC Dino PCI chipset emulation. + * HP-PARISC Dino PCI chipset emulation, as in B160L and similiar machines * - * (C) 2017 by Helge Deller <deller@gmx.de> + * (C) 2017-2019 by Helge Deller <deller@gmx.de> * * This work is licensed under the GNU GPL license version 2 or later. * @@ -21,6 +21,7 @@ #include "migration/vmstate.h" #include "hppa_sys.h" #include "exec/address-spaces.h" +#include "trace.h" #define TYPE_DINO_PCI_HOST_BRIDGE "dino-pcihost" @@ -82,11 +83,28 @@ #define DINO_PCI_HOST_BRIDGE(obj) \ OBJECT_CHECK(DinoState, (obj), TYPE_DINO_PCI_HOST_BRIDGE) +#define DINO800_REGS ((DINO_TLTIM - DINO_GMASK) / 4) +static const uint32_t reg800_keep_bits[DINO800_REGS] = { + MAKE_64BIT_MASK(0, 1), + MAKE_64BIT_MASK(0, 7), + MAKE_64BIT_MASK(0, 7), + MAKE_64BIT_MASK(0, 8), + MAKE_64BIT_MASK(0, 7), + MAKE_64BIT_MASK(0, 9), + MAKE_64BIT_MASK(0, 32), + MAKE_64BIT_MASK(0, 8), + MAKE_64BIT_MASK(0, 30), + MAKE_64BIT_MASK(0, 25), + MAKE_64BIT_MASK(0, 22), + MAKE_64BIT_MASK(0, 9), +}; + typedef struct DinoState { PCIHostState parent_obj; /* PCI_CONFIG_ADDR is parent_obj.config_reg, via pci_host_conf_be_ops, so that we can map PCI_CONFIG_DATA to pci_host_data_be_ops. */ + uint32_t config_reg_dino; /* keep original copy, including 2 lowest bits */ uint32_t iar0; uint32_t iar1; @@ -94,8 +112,12 @@ typedef struct DinoState { uint32_t ipr; uint32_t icr; uint32_t ilr; + uint32_t io_fbb_en; uint32_t io_addr_en; uint32_t io_control; + uint32_t toc_addr; + + uint32_t reg800[DINO800_REGS]; MemoryRegion this_mem; MemoryRegion pci_mem; @@ -106,8 +128,6 @@ typedef struct DinoState { MemoryRegion bm_ram_alias; MemoryRegion bm_pci_alias; MemoryRegion bm_cpu_alias; - - MemoryRegion cpu0_eir_mem; } DinoState; /* @@ -122,6 +142,8 @@ static void gsc_to_pci_forwarding(DinoState *s) tmp = extract32(s->io_control, 7, 2); enabled = (tmp == 0x01); io_addr_en = s->io_addr_en; + /* Mask out first (=firmware) and last (=Dino) areas. */ + io_addr_en &= ~(BIT(31) | BIT(0)); memory_region_transaction_begin(); for (i = 1; i < 31; i++) { @@ -142,6 +164,8 @@ static bool dino_chip_mem_valid(void *opaque, hwaddr addr, unsigned size, bool is_write, MemTxAttrs attrs) { + bool ret = false; + switch (addr) { case DINO_IAR0: case DINO_IAR1: @@ -152,16 +176,22 @@ static bool dino_chip_mem_valid(void *opaque, hwaddr addr, case DINO_ICR: case DINO_ILR: case DINO_IO_CONTROL: + case DINO_IO_FBB_EN: case DINO_IO_ADDR_EN: case DINO_PCI_IO_DATA: - return true; + case DINO_TOC_ADDR: + case DINO_GMASK ... DINO_TLTIM: + ret = true; + break; case DINO_PCI_IO_DATA + 2: - return size <= 2; + ret = (size <= 2); + break; case DINO_PCI_IO_DATA + 1: case DINO_PCI_IO_DATA + 3: - return size == 1; + ret = (size == 1); } - return false; + trace_dino_chip_mem_valid(addr, ret); + return ret; } static MemTxResult dino_chip_read_with_attrs(void *opaque, hwaddr addr, @@ -194,6 +224,9 @@ static MemTxResult dino_chip_read_with_attrs(void *opaque, hwaddr addr, } break; + case DINO_IO_FBB_EN: + val = s->io_fbb_en; + break; case DINO_IO_ADDR_EN: val = s->io_addr_en; break; @@ -227,12 +260,28 @@ static MemTxResult dino_chip_read_with_attrs(void *opaque, hwaddr addr, case DINO_IRR1: val = s->ilr & s->imr & s->icr; break; + case DINO_TOC_ADDR: + val = s->toc_addr; + break; + case DINO_GMASK ... DINO_TLTIM: + val = s->reg800[(addr - DINO_GMASK) / 4]; + if (addr == DINO_PAMR) { + val &= ~0x01; /* LSB is hardwired to 0 */ + } + if (addr == DINO_MLTIM) { + val &= ~0x07; /* 3 LSB are hardwired to 0 */ + } + if (addr == DINO_BRDG_FEAT) { + val &= ~(0x10710E0ul | 8); /* bits 5-7, 24 & 15 reserved */ + } + break; default: /* Controlled by dino_chip_mem_valid above. */ g_assert_not_reached(); } + trace_dino_chip_read(addr, val); *data = val; return ret; } @@ -245,6 +294,9 @@ static MemTxResult dino_chip_write_with_attrs(void *opaque, hwaddr addr, AddressSpace *io; MemTxResult ret; uint16_t ioaddr; + int i; + + trace_dino_chip_write(addr, val); switch (addr) { case DINO_IO_DATA ... DINO_PCI_IO_DATA + 3: @@ -266,9 +318,11 @@ static MemTxResult dino_chip_write_with_attrs(void *opaque, hwaddr addr, } return ret; + case DINO_IO_FBB_EN: + s->io_fbb_en = val & 0x03; + break; case DINO_IO_ADDR_EN: - /* Never allow first (=firmware) and last (=Dino) areas. */ - s->io_addr_en = val & 0x7ffffffe; + s->io_addr_en = val; gsc_to_pci_forwarding(s); break; case DINO_IO_CONTROL: @@ -292,6 +346,10 @@ static MemTxResult dino_chip_write_with_attrs(void *opaque, hwaddr addr, /* Any write to IPR clears the register. */ s->ipr = 0; break; + case DINO_TOC_ADDR: + /* IO_COMMAND of CPU with client_id bits */ + s->toc_addr = 0xFFFA0030 | (val & 0x1e000); + break; case DINO_ILR: case DINO_IRR0: @@ -299,6 +357,12 @@ static MemTxResult dino_chip_write_with_attrs(void *opaque, hwaddr addr, /* These registers are read-only. */ break; + case DINO_GMASK ... DINO_TLTIM: + i = (addr - DINO_GMASK) / 4; + val &= reg800_keep_bits[i]; + s->reg800[i] = val; + break; + default: /* Controlled by dino_chip_mem_valid above. */ g_assert_not_reached(); @@ -323,7 +387,7 @@ static const MemoryRegionOps dino_chip_ops = { static const VMStateDescription vmstate_dino = { .name = "Dino", - .version_id = 1, + .version_id = 2, .minimum_version_id = 1, .fields = (VMStateField[]) { VMSTATE_UINT32(iar0, DinoState), @@ -332,13 +396,14 @@ static const VMStateDescription vmstate_dino = { VMSTATE_UINT32(ipr, DinoState), VMSTATE_UINT32(icr, DinoState), VMSTATE_UINT32(ilr, DinoState), + VMSTATE_UINT32(io_fbb_en, DinoState), VMSTATE_UINT32(io_addr_en, DinoState), VMSTATE_UINT32(io_control, DinoState), + VMSTATE_UINT32(toc_addr, DinoState), VMSTATE_END_OF_LIST() } }; - /* Unlike pci_config_data_le_ops, no check of high bit set in config_reg. */ static uint64_t dino_config_data_read(void *opaque, hwaddr addr, unsigned len) @@ -362,14 +427,16 @@ static const MemoryRegionOps dino_config_data_ops = { static uint64_t dino_config_addr_read(void *opaque, hwaddr addr, unsigned len) { - PCIHostState *s = opaque; - return s->config_reg; + DinoState *s = opaque; + return s->config_reg_dino; } static void dino_config_addr_write(void *opaque, hwaddr addr, uint64_t val, unsigned len) { PCIHostState *s = opaque; + DinoState *ds = opaque; + ds->config_reg_dino = val; /* keep a copy of original value */ s->config_reg = val & ~3U; } @@ -453,6 +520,8 @@ PCIBus *dino_init(MemoryRegion *addr_space, dev = qdev_create(NULL, TYPE_DINO_PCI_HOST_BRIDGE); s = DINO_PCI_HOST_BRIDGE(dev); + s->iar0 = s->iar1 = CPU_HPA + 3; + s->toc_addr = 0xFFFA0030; /* IO_COMMAND of CPU */ /* Dino PCI access from main memory. */ memory_region_init_io(&s->this_mem, OBJECT(s), &dino_chip_ops, diff --git a/hw/hppa/trace-events b/hw/hppa/trace-events index 4e2acb6176..f943b16c4e 100644 --- a/hw/hppa/trace-events +++ b/hw/hppa/trace-events @@ -2,3 +2,8 @@ # pci.c hppa_pci_iack_write(void) "" + +# dino.c +dino_chip_mem_valid(uint64_t addr, uint32_t val) "access to addr 0x%"PRIx64" is %d" +dino_chip_read(uint64_t addr, uint32_t val) "addr 0x%"PRIx64" val 0x%08x" +dino_chip_write(uint64_t addr, uint32_t val) "addr 0x%"PRIx64" val 0x%08x"

[v3,1/6] hw/hppa/dino.c: Improve emulation of Dino PCI chip

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