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	 8110b2bf7e
			
		
	
	
		8110b2bf7e
		
	
	
	
	
		
			
			One byte is missing, use an aligned size.
    (qemu) info mtree
    memory-region: pci0-mem
      0000000000000000-00000000fffffffe (prio 0, i/o): pci0-mem
                                      ^
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <20190624222844.26584-8-f4bug@amsat.org>
		
	
			
		
			
				
	
	
		
			1288 lines
		
	
	
		
			39 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			1288 lines
		
	
	
		
			39 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
 | |
|  * QEMU GT64120 PCI host
 | |
|  *
 | |
|  * Copyright (c) 2006,2007 Aurelien Jarno
 | |
|  *
 | |
|  * Permission is hereby granted, free of charge, to any person obtaining a copy
 | |
|  * of this software and associated documentation files (the "Software"), to deal
 | |
|  * in the Software without restriction, including without limitation the rights
 | |
|  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 | |
|  * copies of the Software, and to permit persons to whom the Software is
 | |
|  * furnished to do so, subject to the following conditions:
 | |
|  *
 | |
|  * The above copyright notice and this permission notice shall be included in
 | |
|  * all copies or substantial portions of the Software.
 | |
|  *
 | |
|  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 | |
|  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 | |
|  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 | |
|  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 | |
|  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 | |
|  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 | |
|  * THE SOFTWARE.
 | |
|  */
 | |
| 
 | |
| #include "qemu/osdep.h"
 | |
| #include "qemu/units.h"
 | |
| #include "qemu/log.h"
 | |
| #include "hw/hw.h"
 | |
| #include "hw/mips/mips.h"
 | |
| #include "hw/pci/pci.h"
 | |
| #include "hw/pci/pci_host.h"
 | |
| #include "hw/i386/pc.h"
 | |
| #include "exec/address-spaces.h"
 | |
| #include "trace.h"
 | |
| 
 | |
| #define GT_REGS                 (0x1000 >> 2)
 | |
| 
 | |
| /* CPU Configuration */
 | |
| #define GT_CPU                  (0x000 >> 2)
 | |
| #define GT_MULTI                (0x120 >> 2)
 | |
| 
 | |
| /* CPU Address Decode */
 | |
| #define GT_SCS10LD              (0x008 >> 2)
 | |
| #define GT_SCS10HD              (0x010 >> 2)
 | |
| #define GT_SCS32LD              (0x018 >> 2)
 | |
| #define GT_SCS32HD              (0x020 >> 2)
 | |
| #define GT_CS20LD               (0x028 >> 2)
 | |
| #define GT_CS20HD               (0x030 >> 2)
 | |
| #define GT_CS3BOOTLD            (0x038 >> 2)
 | |
| #define GT_CS3BOOTHD            (0x040 >> 2)
 | |
| #define GT_PCI0IOLD             (0x048 >> 2)
 | |
| #define GT_PCI0IOHD             (0x050 >> 2)
 | |
| #define GT_PCI0M0LD             (0x058 >> 2)
 | |
| #define GT_PCI0M0HD             (0x060 >> 2)
 | |
| #define GT_PCI0M1LD             (0x080 >> 2)
 | |
| #define GT_PCI0M1HD             (0x088 >> 2)
 | |
| #define GT_PCI1IOLD             (0x090 >> 2)
 | |
| #define GT_PCI1IOHD             (0x098 >> 2)
 | |
| #define GT_PCI1M0LD             (0x0a0 >> 2)
 | |
| #define GT_PCI1M0HD             (0x0a8 >> 2)
 | |
| #define GT_PCI1M1LD             (0x0b0 >> 2)
 | |
| #define GT_PCI1M1HD             (0x0b8 >> 2)
 | |
| #define GT_ISD                  (0x068 >> 2)
 | |
| 
 | |
| #define GT_SCS10AR              (0x0d0 >> 2)
 | |
| #define GT_SCS32AR              (0x0d8 >> 2)
 | |
| #define GT_CS20R                (0x0e0 >> 2)
 | |
| #define GT_CS3BOOTR             (0x0e8 >> 2)
 | |
| 
 | |
| #define GT_PCI0IOREMAP          (0x0f0 >> 2)
 | |
| #define GT_PCI0M0REMAP          (0x0f8 >> 2)
 | |
| #define GT_PCI0M1REMAP          (0x100 >> 2)
 | |
| #define GT_PCI1IOREMAP          (0x108 >> 2)
 | |
| #define GT_PCI1M0REMAP          (0x110 >> 2)
 | |
| #define GT_PCI1M1REMAP          (0x118 >> 2)
 | |
| 
 | |
| /* CPU Error Report */
 | |
| #define GT_CPUERR_ADDRLO        (0x070 >> 2)
 | |
| #define GT_CPUERR_ADDRHI        (0x078 >> 2)
 | |
| #define GT_CPUERR_DATALO        (0x128 >> 2)        /* GT-64120A only  */
 | |
| #define GT_CPUERR_DATAHI        (0x130 >> 2)        /* GT-64120A only  */
 | |
| #define GT_CPUERR_PARITY        (0x138 >> 2)        /* GT-64120A only  */
 | |
| 
 | |
| /* CPU Sync Barrier */
 | |
| #define GT_PCI0SYNC             (0x0c0 >> 2)
 | |
| #define GT_PCI1SYNC             (0x0c8 >> 2)
 | |
| 
 | |
| /* SDRAM and Device Address Decode */
 | |
| #define GT_SCS0LD               (0x400 >> 2)
 | |
| #define GT_SCS0HD               (0x404 >> 2)
 | |
| #define GT_SCS1LD               (0x408 >> 2)
 | |
| #define GT_SCS1HD               (0x40c >> 2)
 | |
| #define GT_SCS2LD               (0x410 >> 2)
 | |
| #define GT_SCS2HD               (0x414 >> 2)
 | |
| #define GT_SCS3LD               (0x418 >> 2)
 | |
| #define GT_SCS3HD               (0x41c >> 2)
 | |
| #define GT_CS0LD                (0x420 >> 2)
 | |
| #define GT_CS0HD                (0x424 >> 2)
 | |
| #define GT_CS1LD                (0x428 >> 2)
 | |
| #define GT_CS1HD                (0x42c >> 2)
 | |
| #define GT_CS2LD                (0x430 >> 2)
 | |
| #define GT_CS2HD                (0x434 >> 2)
 | |
| #define GT_CS3LD                (0x438 >> 2)
 | |
| #define GT_CS3HD                (0x43c >> 2)
 | |
| #define GT_BOOTLD               (0x440 >> 2)
 | |
| #define GT_BOOTHD               (0x444 >> 2)
 | |
| #define GT_ADERR                (0x470 >> 2)
 | |
| 
 | |
| /* SDRAM Configuration */
 | |
| #define GT_SDRAM_CFG            (0x448 >> 2)
 | |
| #define GT_SDRAM_OPMODE         (0x474 >> 2)
 | |
| #define GT_SDRAM_BM             (0x478 >> 2)
 | |
| #define GT_SDRAM_ADDRDECODE     (0x47c >> 2)
 | |
| 
 | |
| /* SDRAM Parameters */
 | |
| #define GT_SDRAM_B0             (0x44c >> 2)
 | |
| #define GT_SDRAM_B1             (0x450 >> 2)
 | |
| #define GT_SDRAM_B2             (0x454 >> 2)
 | |
| #define GT_SDRAM_B3             (0x458 >> 2)
 | |
| 
 | |
| /* Device Parameters */
 | |
| #define GT_DEV_B0               (0x45c >> 2)
 | |
| #define GT_DEV_B1               (0x460 >> 2)
 | |
| #define GT_DEV_B2               (0x464 >> 2)
 | |
| #define GT_DEV_B3               (0x468 >> 2)
 | |
| #define GT_DEV_BOOT             (0x46c >> 2)
 | |
| 
 | |
| /* ECC */
 | |
| #define GT_ECC_ERRDATALO        (0x480 >> 2)        /* GT-64120A only  */
 | |
| #define GT_ECC_ERRDATAHI        (0x484 >> 2)        /* GT-64120A only  */
 | |
| #define GT_ECC_MEM              (0x488 >> 2)        /* GT-64120A only  */
 | |
| #define GT_ECC_CALC             (0x48c >> 2)        /* GT-64120A only  */
 | |
| #define GT_ECC_ERRADDR          (0x490 >> 2)        /* GT-64120A only  */
 | |
| 
 | |
| /* DMA Record */
 | |
| #define GT_DMA0_CNT             (0x800 >> 2)
 | |
| #define GT_DMA1_CNT             (0x804 >> 2)
 | |
| #define GT_DMA2_CNT             (0x808 >> 2)
 | |
| #define GT_DMA3_CNT             (0x80c >> 2)
 | |
| #define GT_DMA0_SA              (0x810 >> 2)
 | |
| #define GT_DMA1_SA              (0x814 >> 2)
 | |
| #define GT_DMA2_SA              (0x818 >> 2)
 | |
| #define GT_DMA3_SA              (0x81c >> 2)
 | |
| #define GT_DMA0_DA              (0x820 >> 2)
 | |
| #define GT_DMA1_DA              (0x824 >> 2)
 | |
| #define GT_DMA2_DA              (0x828 >> 2)
 | |
| #define GT_DMA3_DA              (0x82c >> 2)
 | |
| #define GT_DMA0_NEXT            (0x830 >> 2)
 | |
| #define GT_DMA1_NEXT            (0x834 >> 2)
 | |
| #define GT_DMA2_NEXT            (0x838 >> 2)
 | |
| #define GT_DMA3_NEXT            (0x83c >> 2)
 | |
| #define GT_DMA0_CUR             (0x870 >> 2)
 | |
| #define GT_DMA1_CUR             (0x874 >> 2)
 | |
| #define GT_DMA2_CUR             (0x878 >> 2)
 | |
| #define GT_DMA3_CUR             (0x87c >> 2)
 | |
| 
 | |
| /* DMA Channel Control */
 | |
| #define GT_DMA0_CTRL            (0x840 >> 2)
 | |
| #define GT_DMA1_CTRL            (0x844 >> 2)
 | |
| #define GT_DMA2_CTRL            (0x848 >> 2)
 | |
| #define GT_DMA3_CTRL            (0x84c >> 2)
 | |
| 
 | |
| /* DMA Arbiter */
 | |
| #define GT_DMA_ARB              (0x860 >> 2)
 | |
| 
 | |
| /* Timer/Counter */
 | |
| #define GT_TC0                  (0x850 >> 2)
 | |
| #define GT_TC1                  (0x854 >> 2)
 | |
| #define GT_TC2                  (0x858 >> 2)
 | |
| #define GT_TC3                  (0x85c >> 2)
 | |
| #define GT_TC_CONTROL           (0x864 >> 2)
 | |
| 
 | |
| /* PCI Internal */
 | |
| #define GT_PCI0_CMD             (0xc00 >> 2)
 | |
| #define GT_PCI0_TOR             (0xc04 >> 2)
 | |
| #define GT_PCI0_BS_SCS10        (0xc08 >> 2)
 | |
| #define GT_PCI0_BS_SCS32        (0xc0c >> 2)
 | |
| #define GT_PCI0_BS_CS20         (0xc10 >> 2)
 | |
| #define GT_PCI0_BS_CS3BT        (0xc14 >> 2)
 | |
| #define GT_PCI1_IACK            (0xc30 >> 2)
 | |
| #define GT_PCI0_IACK            (0xc34 >> 2)
 | |
| #define GT_PCI0_BARE            (0xc3c >> 2)
 | |
| #define GT_PCI0_PREFMBR         (0xc40 >> 2)
 | |
| #define GT_PCI0_SCS10_BAR       (0xc48 >> 2)
 | |
| #define GT_PCI0_SCS32_BAR       (0xc4c >> 2)
 | |
| #define GT_PCI0_CS20_BAR        (0xc50 >> 2)
 | |
| #define GT_PCI0_CS3BT_BAR       (0xc54 >> 2)
 | |
| #define GT_PCI0_SSCS10_BAR      (0xc58 >> 2)
 | |
| #define GT_PCI0_SSCS32_BAR      (0xc5c >> 2)
 | |
| #define GT_PCI0_SCS3BT_BAR      (0xc64 >> 2)
 | |
| #define GT_PCI1_CMD             (0xc80 >> 2)
 | |
| #define GT_PCI1_TOR             (0xc84 >> 2)
 | |
| #define GT_PCI1_BS_SCS10        (0xc88 >> 2)
 | |
| #define GT_PCI1_BS_SCS32        (0xc8c >> 2)
 | |
| #define GT_PCI1_BS_CS20         (0xc90 >> 2)
 | |
| #define GT_PCI1_BS_CS3BT        (0xc94 >> 2)
 | |
| #define GT_PCI1_BARE            (0xcbc >> 2)
 | |
| #define GT_PCI1_PREFMBR         (0xcc0 >> 2)
 | |
| #define GT_PCI1_SCS10_BAR       (0xcc8 >> 2)
 | |
| #define GT_PCI1_SCS32_BAR       (0xccc >> 2)
 | |
| #define GT_PCI1_CS20_BAR        (0xcd0 >> 2)
 | |
| #define GT_PCI1_CS3BT_BAR       (0xcd4 >> 2)
 | |
| #define GT_PCI1_SSCS10_BAR      (0xcd8 >> 2)
 | |
| #define GT_PCI1_SSCS32_BAR      (0xcdc >> 2)
 | |
| #define GT_PCI1_SCS3BT_BAR      (0xce4 >> 2)
 | |
| #define GT_PCI1_CFGADDR         (0xcf0 >> 2)
 | |
| #define GT_PCI1_CFGDATA         (0xcf4 >> 2)
 | |
| #define GT_PCI0_CFGADDR         (0xcf8 >> 2)
 | |
| #define GT_PCI0_CFGDATA         (0xcfc >> 2)
 | |
| 
 | |
| /* Interrupts */
 | |
| #define GT_INTRCAUSE            (0xc18 >> 2)
 | |
| #define GT_INTRMASK             (0xc1c >> 2)
 | |
| #define GT_PCI0_ICMASK          (0xc24 >> 2)
 | |
| #define GT_PCI0_SERR0MASK       (0xc28 >> 2)
 | |
| #define GT_CPU_INTSEL           (0xc70 >> 2)
 | |
| #define GT_PCI0_INTSEL          (0xc74 >> 2)
 | |
| #define GT_HINTRCAUSE           (0xc98 >> 2)
 | |
| #define GT_HINTRMASK            (0xc9c >> 2)
 | |
| #define GT_PCI0_HICMASK         (0xca4 >> 2)
 | |
| #define GT_PCI1_SERR1MASK       (0xca8 >> 2)
 | |
| 
 | |
| #define PCI_MAPPING_ENTRY(regname)            \
 | |
|     hwaddr regname ##_start;      \
 | |
|     hwaddr regname ##_length;     \
 | |
|     MemoryRegion regname ##_mem
 | |
| 
 | |
| #define TYPE_GT64120_PCI_HOST_BRIDGE "gt64120"
 | |
| 
 | |
| #define GT64120_PCI_HOST_BRIDGE(obj) \
 | |
|     OBJECT_CHECK(GT64120State, (obj), TYPE_GT64120_PCI_HOST_BRIDGE)
 | |
| 
 | |
| typedef struct GT64120State {
 | |
|     PCIHostState parent_obj;
 | |
| 
 | |
|     uint32_t regs[GT_REGS];
 | |
|     PCI_MAPPING_ENTRY(PCI0IO);
 | |
|     PCI_MAPPING_ENTRY(PCI0M0);
 | |
|     PCI_MAPPING_ENTRY(PCI0M1);
 | |
|     PCI_MAPPING_ENTRY(ISD);
 | |
|     MemoryRegion pci0_mem;
 | |
|     AddressSpace pci0_mem_as;
 | |
| } GT64120State;
 | |
| 
 | |
| /* Adjust range to avoid touching space which isn't mappable via PCI */
 | |
| /*
 | |
|  * XXX: Hardcoded values for Malta: 0x1e000000 - 0x1f100000
 | |
|  *                                  0x1fc00000 - 0x1fd00000
 | |
|  */
 | |
| static void check_reserved_space(hwaddr *start, hwaddr *length)
 | |
| {
 | |
|     hwaddr begin = *start;
 | |
|     hwaddr end = *start + *length;
 | |
| 
 | |
|     if (end >= 0x1e000000LL && end < 0x1f100000LL) {
 | |
|         end = 0x1e000000LL;
 | |
|     }
 | |
|     if (begin >= 0x1e000000LL && begin < 0x1f100000LL) {
 | |
|         begin = 0x1f100000LL;
 | |
|     }
 | |
|     if (end >= 0x1fc00000LL && end < 0x1fd00000LL) {
 | |
|         end = 0x1fc00000LL;
 | |
|     }
 | |
|     if (begin >= 0x1fc00000LL && begin < 0x1fd00000LL) {
 | |
|         begin = 0x1fd00000LL;
 | |
|     }
 | |
|     /* XXX: This is broken when a reserved range splits the requested range */
 | |
|     if (end >= 0x1f100000LL && begin < 0x1e000000LL) {
 | |
|         end = 0x1e000000LL;
 | |
|     }
 | |
|     if (end >= 0x1fd00000LL && begin < 0x1fc00000LL) {
 | |
|         end = 0x1fc00000LL;
 | |
|     }
 | |
| 
 | |
|     *start = begin;
 | |
|     *length = end - begin;
 | |
| }
 | |
| 
 | |
| static void gt64120_isd_mapping(GT64120State *s)
 | |
| {
 | |
|     /* Bits 14:0 of ISD map to bits 35:21 of the start address.  */
 | |
|     hwaddr start = ((hwaddr)s->regs[GT_ISD] << 21) & 0xFFFE00000ull;
 | |
|     hwaddr length = 0x1000;
 | |
| 
 | |
|     if (s->ISD_length) {
 | |
|         memory_region_del_subregion(get_system_memory(), &s->ISD_mem);
 | |
|     }
 | |
|     check_reserved_space(&start, &length);
 | |
|     length = 0x1000;
 | |
|     /* Map new address */
 | |
|     trace_gt64120_isd_remap(s->ISD_length, s->ISD_start, length, start);
 | |
|     s->ISD_start = start;
 | |
|     s->ISD_length = length;
 | |
|     memory_region_add_subregion(get_system_memory(), s->ISD_start, &s->ISD_mem);
 | |
| }
 | |
| 
 | |
| static void gt64120_pci_mapping(GT64120State *s)
 | |
| {
 | |
|     /* Update PCI0IO mapping */
 | |
|     if ((s->regs[GT_PCI0IOLD] & 0x7f) <= s->regs[GT_PCI0IOHD]) {
 | |
|         /* Unmap old IO address */
 | |
|         if (s->PCI0IO_length) {
 | |
|             memory_region_del_subregion(get_system_memory(), &s->PCI0IO_mem);
 | |
|             object_unparent(OBJECT(&s->PCI0IO_mem));
 | |
|         }
 | |
|         /* Map new IO address */
 | |
|         s->PCI0IO_start = s->regs[GT_PCI0IOLD] << 21;
 | |
|         s->PCI0IO_length = ((s->regs[GT_PCI0IOHD] + 1) -
 | |
|                             (s->regs[GT_PCI0IOLD] & 0x7f)) << 21;
 | |
|         if (s->PCI0IO_length) {
 | |
|             memory_region_init_alias(&s->PCI0IO_mem, OBJECT(s), "pci0-io",
 | |
|                                      get_system_io(), 0, s->PCI0IO_length);
 | |
|             memory_region_add_subregion(get_system_memory(), s->PCI0IO_start,
 | |
|                                         &s->PCI0IO_mem);
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     /* Update PCI0M0 mapping */
 | |
|     if ((s->regs[GT_PCI0M0LD] & 0x7f) <= s->regs[GT_PCI0M0HD]) {
 | |
|         /* Unmap old MEM address */
 | |
|         if (s->PCI0M0_length) {
 | |
|             memory_region_del_subregion(get_system_memory(), &s->PCI0M0_mem);
 | |
|             object_unparent(OBJECT(&s->PCI0M0_mem));
 | |
|         }
 | |
|         /* Map new mem address */
 | |
|         s->PCI0M0_start = s->regs[GT_PCI0M0LD] << 21;
 | |
|         s->PCI0M0_length = ((s->regs[GT_PCI0M0HD] + 1) -
 | |
|                             (s->regs[GT_PCI0M0LD] & 0x7f)) << 21;
 | |
|         if (s->PCI0M0_length) {
 | |
|             memory_region_init_alias(&s->PCI0M0_mem, OBJECT(s), "pci0-mem0",
 | |
|                                      &s->pci0_mem, s->PCI0M0_start,
 | |
|                                      s->PCI0M0_length);
 | |
|             memory_region_add_subregion(get_system_memory(), s->PCI0M0_start,
 | |
|                                         &s->PCI0M0_mem);
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     /* Update PCI0M1 mapping */
 | |
|     if ((s->regs[GT_PCI0M1LD] & 0x7f) <= s->regs[GT_PCI0M1HD]) {
 | |
|         /* Unmap old MEM address */
 | |
|         if (s->PCI0M1_length) {
 | |
|             memory_region_del_subregion(get_system_memory(), &s->PCI0M1_mem);
 | |
|             object_unparent(OBJECT(&s->PCI0M1_mem));
 | |
|         }
 | |
|         /* Map new mem address */
 | |
|         s->PCI0M1_start = s->regs[GT_PCI0M1LD] << 21;
 | |
|         s->PCI0M1_length = ((s->regs[GT_PCI0M1HD] + 1) -
 | |
|                             (s->regs[GT_PCI0M1LD] & 0x7f)) << 21;
 | |
|         if (s->PCI0M1_length) {
 | |
|             memory_region_init_alias(&s->PCI0M1_mem, OBJECT(s), "pci0-mem1",
 | |
|                                      &s->pci0_mem, s->PCI0M1_start,
 | |
|                                      s->PCI0M1_length);
 | |
|             memory_region_add_subregion(get_system_memory(), s->PCI0M1_start,
 | |
|                                         &s->PCI0M1_mem);
 | |
|         }
 | |
|     }
 | |
| }
 | |
| 
 | |
| static int gt64120_post_load(void *opaque, int version_id)
 | |
| {
 | |
|     GT64120State *s = opaque;
 | |
| 
 | |
|     gt64120_isd_mapping(s);
 | |
|     gt64120_pci_mapping(s);
 | |
| 
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| static const VMStateDescription vmstate_gt64120 = {
 | |
|     .name = "gt64120",
 | |
|     .version_id = 1,
 | |
|     .minimum_version_id = 1,
 | |
|     .post_load = gt64120_post_load,
 | |
|     .fields = (VMStateField[]) {
 | |
|         VMSTATE_UINT32_ARRAY(regs, GT64120State, GT_REGS),
 | |
|         VMSTATE_END_OF_LIST()
 | |
|     }
 | |
| };
 | |
| 
 | |
| static void gt64120_writel(void *opaque, hwaddr addr,
 | |
|                            uint64_t val, unsigned size)
 | |
| {
 | |
|     GT64120State *s = opaque;
 | |
|     PCIHostState *phb = PCI_HOST_BRIDGE(s);
 | |
|     uint32_t saddr;
 | |
| 
 | |
|     if (!(s->regs[GT_CPU] & 0x00001000)) {
 | |
|         val = bswap32(val);
 | |
|     }
 | |
| 
 | |
|     saddr = (addr & 0xfff) >> 2;
 | |
|     switch (saddr) {
 | |
| 
 | |
|     /* CPU Configuration */
 | |
|     case GT_CPU:
 | |
|         s->regs[GT_CPU] = val;
 | |
|         break;
 | |
|     case GT_MULTI:
 | |
|         /* Read-only register as only one GT64xxx is present on the CPU bus */
 | |
|         break;
 | |
| 
 | |
|     /* CPU Address Decode */
 | |
|     case GT_PCI0IOLD:
 | |
|         s->regs[GT_PCI0IOLD]    = val & 0x00007fff;
 | |
|         s->regs[GT_PCI0IOREMAP] = val & 0x000007ff;
 | |
|         gt64120_pci_mapping(s);
 | |
|         break;
 | |
|     case GT_PCI0M0LD:
 | |
|         s->regs[GT_PCI0M0LD]    = val & 0x00007fff;
 | |
|         s->regs[GT_PCI0M0REMAP] = val & 0x000007ff;
 | |
|         gt64120_pci_mapping(s);
 | |
|         break;
 | |
|     case GT_PCI0M1LD:
 | |
|         s->regs[GT_PCI0M1LD]    = val & 0x00007fff;
 | |
|         s->regs[GT_PCI0M1REMAP] = val & 0x000007ff;
 | |
|         gt64120_pci_mapping(s);
 | |
|         break;
 | |
|     case GT_PCI1IOLD:
 | |
|         s->regs[GT_PCI1IOLD]    = val & 0x00007fff;
 | |
|         s->regs[GT_PCI1IOREMAP] = val & 0x000007ff;
 | |
|         break;
 | |
|     case GT_PCI1M0LD:
 | |
|         s->regs[GT_PCI1M0LD]    = val & 0x00007fff;
 | |
|         s->regs[GT_PCI1M0REMAP] = val & 0x000007ff;
 | |
|         break;
 | |
|     case GT_PCI1M1LD:
 | |
|         s->regs[GT_PCI1M1LD]    = val & 0x00007fff;
 | |
|         s->regs[GT_PCI1M1REMAP] = val & 0x000007ff;
 | |
|         break;
 | |
|     case GT_PCI0M0HD:
 | |
|     case GT_PCI0M1HD:
 | |
|     case GT_PCI0IOHD:
 | |
|         s->regs[saddr] = val & 0x0000007f;
 | |
|         gt64120_pci_mapping(s);
 | |
|         break;
 | |
|     case GT_PCI1IOHD:
 | |
|     case GT_PCI1M0HD:
 | |
|     case GT_PCI1M1HD:
 | |
|         s->regs[saddr] = val & 0x0000007f;
 | |
|         break;
 | |
|     case GT_ISD:
 | |
|         s->regs[saddr] = val & 0x00007fff;
 | |
|         gt64120_isd_mapping(s);
 | |
|         break;
 | |
| 
 | |
|     case GT_PCI0IOREMAP:
 | |
|     case GT_PCI0M0REMAP:
 | |
|     case GT_PCI0M1REMAP:
 | |
|     case GT_PCI1IOREMAP:
 | |
|     case GT_PCI1M0REMAP:
 | |
|     case GT_PCI1M1REMAP:
 | |
|         s->regs[saddr] = val & 0x000007ff;
 | |
|         break;
 | |
| 
 | |
|     /* CPU Error Report */
 | |
|     case GT_CPUERR_ADDRLO:
 | |
|     case GT_CPUERR_ADDRHI:
 | |
|     case GT_CPUERR_DATALO:
 | |
|     case GT_CPUERR_DATAHI:
 | |
|     case GT_CPUERR_PARITY:
 | |
|         /* Read-only registers, do nothing */
 | |
|         qemu_log_mask(LOG_GUEST_ERROR,
 | |
|                       "gt64120: Read-only register write "
 | |
|                       "reg:0x03%x size:%u value:0x%0*" PRIx64 "\n",
 | |
|                       saddr << 2, size, size << 1, val);
 | |
|         break;
 | |
| 
 | |
|     /* CPU Sync Barrier */
 | |
|     case GT_PCI0SYNC:
 | |
|     case GT_PCI1SYNC:
 | |
|         /* Read-only registers, do nothing */
 | |
|         qemu_log_mask(LOG_GUEST_ERROR,
 | |
|                       "gt64120: Read-only register write "
 | |
|                       "reg:0x03%x size:%u value:0x%0*" PRIx64 "\n",
 | |
|                       saddr << 2, size, size << 1, val);
 | |
|         break;
 | |
| 
 | |
|     /* SDRAM and Device Address Decode */
 | |
|     case GT_SCS0LD:
 | |
|     case GT_SCS0HD:
 | |
|     case GT_SCS1LD:
 | |
|     case GT_SCS1HD:
 | |
|     case GT_SCS2LD:
 | |
|     case GT_SCS2HD:
 | |
|     case GT_SCS3LD:
 | |
|     case GT_SCS3HD:
 | |
|     case GT_CS0LD:
 | |
|     case GT_CS0HD:
 | |
|     case GT_CS1LD:
 | |
|     case GT_CS1HD:
 | |
|     case GT_CS2LD:
 | |
|     case GT_CS2HD:
 | |
|     case GT_CS3LD:
 | |
|     case GT_CS3HD:
 | |
|     case GT_BOOTLD:
 | |
|     case GT_BOOTHD:
 | |
|     case GT_ADERR:
 | |
|     /* SDRAM Configuration */
 | |
|     case GT_SDRAM_CFG:
 | |
|     case GT_SDRAM_OPMODE:
 | |
|     case GT_SDRAM_BM:
 | |
|     case GT_SDRAM_ADDRDECODE:
 | |
|         /* Accept and ignore SDRAM interleave configuration */
 | |
|         s->regs[saddr] = val;
 | |
|         break;
 | |
| 
 | |
|     /* Device Parameters */
 | |
|     case GT_DEV_B0:
 | |
|     case GT_DEV_B1:
 | |
|     case GT_DEV_B2:
 | |
|     case GT_DEV_B3:
 | |
|     case GT_DEV_BOOT:
 | |
|         /* Not implemented */
 | |
|         qemu_log_mask(LOG_UNIMP,
 | |
|                       "gt64120: Unimplemented device register write "
 | |
|                       "reg:0x03%x size:%u value:0x%0*" PRIx64 "\n",
 | |
|                       saddr << 2, size, size << 1, val);
 | |
|         break;
 | |
| 
 | |
|     /* ECC */
 | |
|     case GT_ECC_ERRDATALO:
 | |
|     case GT_ECC_ERRDATAHI:
 | |
|     case GT_ECC_MEM:
 | |
|     case GT_ECC_CALC:
 | |
|     case GT_ECC_ERRADDR:
 | |
|         /* Read-only registers, do nothing */
 | |
|         qemu_log_mask(LOG_GUEST_ERROR,
 | |
|                       "gt64120: Read-only register write "
 | |
|                       "reg:0x03%x size:%u value:0x%0*" PRIx64 "\n",
 | |
|                       saddr << 2, size, size << 1, val);
 | |
|         break;
 | |
| 
 | |
|     /* DMA Record */
 | |
|     case GT_DMA0_CNT:
 | |
|     case GT_DMA1_CNT:
 | |
|     case GT_DMA2_CNT:
 | |
|     case GT_DMA3_CNT:
 | |
|     case GT_DMA0_SA:
 | |
|     case GT_DMA1_SA:
 | |
|     case GT_DMA2_SA:
 | |
|     case GT_DMA3_SA:
 | |
|     case GT_DMA0_DA:
 | |
|     case GT_DMA1_DA:
 | |
|     case GT_DMA2_DA:
 | |
|     case GT_DMA3_DA:
 | |
|     case GT_DMA0_NEXT:
 | |
|     case GT_DMA1_NEXT:
 | |
|     case GT_DMA2_NEXT:
 | |
|     case GT_DMA3_NEXT:
 | |
|     case GT_DMA0_CUR:
 | |
|     case GT_DMA1_CUR:
 | |
|     case GT_DMA2_CUR:
 | |
|     case GT_DMA3_CUR:
 | |
| 
 | |
|     /* DMA Channel Control */
 | |
|     case GT_DMA0_CTRL:
 | |
|     case GT_DMA1_CTRL:
 | |
|     case GT_DMA2_CTRL:
 | |
|     case GT_DMA3_CTRL:
 | |
| 
 | |
|     /* DMA Arbiter */
 | |
|     case GT_DMA_ARB:
 | |
|         /* Not implemented */
 | |
|         qemu_log_mask(LOG_UNIMP,
 | |
|                       "gt64120: Unimplemented DMA register write "
 | |
|                       "reg:0x03%x size:%u value:0x%0*" PRIx64 "\n",
 | |
|                       saddr << 2, size, size << 1, val);
 | |
|         break;
 | |
| 
 | |
|     /* Timer/Counter */
 | |
|     case GT_TC0:
 | |
|     case GT_TC1:
 | |
|     case GT_TC2:
 | |
|     case GT_TC3:
 | |
|     case GT_TC_CONTROL:
 | |
|         /* Not implemented */
 | |
|         qemu_log_mask(LOG_UNIMP,
 | |
|                       "gt64120: Unimplemented timer register write "
 | |
|                       "reg:0x03%x size:%u value:0x%0*" PRIx64 "\n",
 | |
|                       saddr << 2, size, size << 1, val);
 | |
|         break;
 | |
| 
 | |
|     /* PCI Internal */
 | |
|     case GT_PCI0_CMD:
 | |
|     case GT_PCI1_CMD:
 | |
|         s->regs[saddr] = val & 0x0401fc0f;
 | |
|         break;
 | |
|     case GT_PCI0_TOR:
 | |
|     case GT_PCI0_BS_SCS10:
 | |
|     case GT_PCI0_BS_SCS32:
 | |
|     case GT_PCI0_BS_CS20:
 | |
|     case GT_PCI0_BS_CS3BT:
 | |
|     case GT_PCI1_IACK:
 | |
|     case GT_PCI0_IACK:
 | |
|     case GT_PCI0_BARE:
 | |
|     case GT_PCI0_PREFMBR:
 | |
|     case GT_PCI0_SCS10_BAR:
 | |
|     case GT_PCI0_SCS32_BAR:
 | |
|     case GT_PCI0_CS20_BAR:
 | |
|     case GT_PCI0_CS3BT_BAR:
 | |
|     case GT_PCI0_SSCS10_BAR:
 | |
|     case GT_PCI0_SSCS32_BAR:
 | |
|     case GT_PCI0_SCS3BT_BAR:
 | |
|     case GT_PCI1_TOR:
 | |
|     case GT_PCI1_BS_SCS10:
 | |
|     case GT_PCI1_BS_SCS32:
 | |
|     case GT_PCI1_BS_CS20:
 | |
|     case GT_PCI1_BS_CS3BT:
 | |
|     case GT_PCI1_BARE:
 | |
|     case GT_PCI1_PREFMBR:
 | |
|     case GT_PCI1_SCS10_BAR:
 | |
|     case GT_PCI1_SCS32_BAR:
 | |
|     case GT_PCI1_CS20_BAR:
 | |
|     case GT_PCI1_CS3BT_BAR:
 | |
|     case GT_PCI1_SSCS10_BAR:
 | |
|     case GT_PCI1_SSCS32_BAR:
 | |
|     case GT_PCI1_SCS3BT_BAR:
 | |
|     case GT_PCI1_CFGADDR:
 | |
|     case GT_PCI1_CFGDATA:
 | |
|         /* not implemented */
 | |
|         qemu_log_mask(LOG_UNIMP,
 | |
|                       "gt64120: Unimplemented timer register write "
 | |
|                       "reg:0x03%x size:%u value:0x%0*" PRIx64 "\n",
 | |
|                       saddr << 2, size, size << 1, val);
 | |
|         break;
 | |
|     case GT_PCI0_CFGADDR:
 | |
|         phb->config_reg = val & 0x80fffffc;
 | |
|         break;
 | |
|     case GT_PCI0_CFGDATA:
 | |
|         if (!(s->regs[GT_PCI0_CMD] & 1) && (phb->config_reg & 0x00fff800)) {
 | |
|             val = bswap32(val);
 | |
|         }
 | |
|         if (phb->config_reg & (1u << 31)) {
 | |
|             pci_data_write(phb->bus, phb->config_reg, val, 4);
 | |
|         }
 | |
|         break;
 | |
| 
 | |
|     /* Interrupts */
 | |
|     case GT_INTRCAUSE:
 | |
|         /* not really implemented */
 | |
|         s->regs[saddr] = ~(~(s->regs[saddr]) | ~(val & 0xfffffffe));
 | |
|         s->regs[saddr] |= !!(s->regs[saddr] & 0xfffffffe);
 | |
|         trace_gt64120_write("INTRCAUSE", size << 1, val);
 | |
|         break;
 | |
|     case GT_INTRMASK:
 | |
|         s->regs[saddr] = val & 0x3c3ffffe;
 | |
|         trace_gt64120_write("INTRMASK", size << 1, val);
 | |
|         break;
 | |
|     case GT_PCI0_ICMASK:
 | |
|         s->regs[saddr] = val & 0x03fffffe;
 | |
|         trace_gt64120_write("ICMASK", size << 1, val);
 | |
|         break;
 | |
|     case GT_PCI0_SERR0MASK:
 | |
|         s->regs[saddr] = val & 0x0000003f;
 | |
|         trace_gt64120_write("SERR0MASK", size << 1, val);
 | |
|         break;
 | |
| 
 | |
|     /* Reserved when only PCI_0 is configured. */
 | |
|     case GT_HINTRCAUSE:
 | |
|     case GT_CPU_INTSEL:
 | |
|     case GT_PCI0_INTSEL:
 | |
|     case GT_HINTRMASK:
 | |
|     case GT_PCI0_HICMASK:
 | |
|     case GT_PCI1_SERR1MASK:
 | |
|         /* not implemented */
 | |
|         break;
 | |
| 
 | |
|     /* SDRAM Parameters */
 | |
|     case GT_SDRAM_B0:
 | |
|     case GT_SDRAM_B1:
 | |
|     case GT_SDRAM_B2:
 | |
|     case GT_SDRAM_B3:
 | |
|         /*
 | |
|          * We don't simulate electrical parameters of the SDRAM.
 | |
|          * Accept, but ignore the values.
 | |
|          */
 | |
|         s->regs[saddr] = val;
 | |
|         break;
 | |
| 
 | |
|     default:
 | |
|         qemu_log_mask(LOG_GUEST_ERROR,
 | |
|                       "gt64120: Illegal register write "
 | |
|                       "reg:0x03%x size:%u value:0x%0*" PRIx64 "\n",
 | |
|                       saddr << 2, size, size << 1, val);
 | |
|         break;
 | |
|     }
 | |
| }
 | |
| 
 | |
| static uint64_t gt64120_readl(void *opaque,
 | |
|                               hwaddr addr, unsigned size)
 | |
| {
 | |
|     GT64120State *s = opaque;
 | |
|     PCIHostState *phb = PCI_HOST_BRIDGE(s);
 | |
|     uint32_t val;
 | |
|     uint32_t saddr;
 | |
| 
 | |
|     saddr = (addr & 0xfff) >> 2;
 | |
|     switch (saddr) {
 | |
| 
 | |
|     /* CPU Configuration */
 | |
|     case GT_MULTI:
 | |
|         /*
 | |
|          * Only one GT64xxx is present on the CPU bus, return
 | |
|          * the initial value.
 | |
|          */
 | |
|         val = s->regs[saddr];
 | |
|         break;
 | |
| 
 | |
|     /* CPU Error Report */
 | |
|     case GT_CPUERR_ADDRLO:
 | |
|     case GT_CPUERR_ADDRHI:
 | |
|     case GT_CPUERR_DATALO:
 | |
|     case GT_CPUERR_DATAHI:
 | |
|     case GT_CPUERR_PARITY:
 | |
|         /* Emulated memory has no error, always return the initial values. */
 | |
|         val = s->regs[saddr];
 | |
|         break;
 | |
| 
 | |
|     /* CPU Sync Barrier */
 | |
|     case GT_PCI0SYNC:
 | |
|     case GT_PCI1SYNC:
 | |
|         /*
 | |
|          * Reading those register should empty all FIFO on the PCI
 | |
|          * bus, which are not emulated. The return value should be
 | |
|          * a random value that should be ignored.
 | |
|          */
 | |
|         val = 0xc000ffee;
 | |
|         break;
 | |
| 
 | |
|     /* ECC */
 | |
|     case GT_ECC_ERRDATALO:
 | |
|     case GT_ECC_ERRDATAHI:
 | |
|     case GT_ECC_MEM:
 | |
|     case GT_ECC_CALC:
 | |
|     case GT_ECC_ERRADDR:
 | |
|         /* Emulated memory has no error, always return the initial values. */
 | |
|         val = s->regs[saddr];
 | |
|         break;
 | |
| 
 | |
|     case GT_CPU:
 | |
|     case GT_SCS10LD:
 | |
|     case GT_SCS10HD:
 | |
|     case GT_SCS32LD:
 | |
|     case GT_SCS32HD:
 | |
|     case GT_CS20LD:
 | |
|     case GT_CS20HD:
 | |
|     case GT_CS3BOOTLD:
 | |
|     case GT_CS3BOOTHD:
 | |
|     case GT_SCS10AR:
 | |
|     case GT_SCS32AR:
 | |
|     case GT_CS20R:
 | |
|     case GT_CS3BOOTR:
 | |
|     case GT_PCI0IOLD:
 | |
|     case GT_PCI0M0LD:
 | |
|     case GT_PCI0M1LD:
 | |
|     case GT_PCI1IOLD:
 | |
|     case GT_PCI1M0LD:
 | |
|     case GT_PCI1M1LD:
 | |
|     case GT_PCI0IOHD:
 | |
|     case GT_PCI0M0HD:
 | |
|     case GT_PCI0M1HD:
 | |
|     case GT_PCI1IOHD:
 | |
|     case GT_PCI1M0HD:
 | |
|     case GT_PCI1M1HD:
 | |
|     case GT_PCI0IOREMAP:
 | |
|     case GT_PCI0M0REMAP:
 | |
|     case GT_PCI0M1REMAP:
 | |
|     case GT_PCI1IOREMAP:
 | |
|     case GT_PCI1M0REMAP:
 | |
|     case GT_PCI1M1REMAP:
 | |
|     case GT_ISD:
 | |
|         val = s->regs[saddr];
 | |
|         break;
 | |
|     case GT_PCI0_IACK:
 | |
|         /* Read the IRQ number */
 | |
|         val = pic_read_irq(isa_pic);
 | |
|         break;
 | |
| 
 | |
|     /* SDRAM and Device Address Decode */
 | |
|     case GT_SCS0LD:
 | |
|     case GT_SCS0HD:
 | |
|     case GT_SCS1LD:
 | |
|     case GT_SCS1HD:
 | |
|     case GT_SCS2LD:
 | |
|     case GT_SCS2HD:
 | |
|     case GT_SCS3LD:
 | |
|     case GT_SCS3HD:
 | |
|     case GT_CS0LD:
 | |
|     case GT_CS0HD:
 | |
|     case GT_CS1LD:
 | |
|     case GT_CS1HD:
 | |
|     case GT_CS2LD:
 | |
|     case GT_CS2HD:
 | |
|     case GT_CS3LD:
 | |
|     case GT_CS3HD:
 | |
|     case GT_BOOTLD:
 | |
|     case GT_BOOTHD:
 | |
|     case GT_ADERR:
 | |
|         val = s->regs[saddr];
 | |
|         break;
 | |
| 
 | |
|     /* SDRAM Configuration */
 | |
|     case GT_SDRAM_CFG:
 | |
|     case GT_SDRAM_OPMODE:
 | |
|     case GT_SDRAM_BM:
 | |
|     case GT_SDRAM_ADDRDECODE:
 | |
|         val = s->regs[saddr];
 | |
|         break;
 | |
| 
 | |
|     /* SDRAM Parameters */
 | |
|     case GT_SDRAM_B0:
 | |
|     case GT_SDRAM_B1:
 | |
|     case GT_SDRAM_B2:
 | |
|     case GT_SDRAM_B3:
 | |
|         /*
 | |
|          * We don't simulate electrical parameters of the SDRAM.
 | |
|          * Just return the last written value.
 | |
|          */
 | |
|         val = s->regs[saddr];
 | |
|         break;
 | |
| 
 | |
|     /* Device Parameters */
 | |
|     case GT_DEV_B0:
 | |
|     case GT_DEV_B1:
 | |
|     case GT_DEV_B2:
 | |
|     case GT_DEV_B3:
 | |
|     case GT_DEV_BOOT:
 | |
|         val = s->regs[saddr];
 | |
|         break;
 | |
| 
 | |
|     /* DMA Record */
 | |
|     case GT_DMA0_CNT:
 | |
|     case GT_DMA1_CNT:
 | |
|     case GT_DMA2_CNT:
 | |
|     case GT_DMA3_CNT:
 | |
|     case GT_DMA0_SA:
 | |
|     case GT_DMA1_SA:
 | |
|     case GT_DMA2_SA:
 | |
|     case GT_DMA3_SA:
 | |
|     case GT_DMA0_DA:
 | |
|     case GT_DMA1_DA:
 | |
|     case GT_DMA2_DA:
 | |
|     case GT_DMA3_DA:
 | |
|     case GT_DMA0_NEXT:
 | |
|     case GT_DMA1_NEXT:
 | |
|     case GT_DMA2_NEXT:
 | |
|     case GT_DMA3_NEXT:
 | |
|     case GT_DMA0_CUR:
 | |
|     case GT_DMA1_CUR:
 | |
|     case GT_DMA2_CUR:
 | |
|     case GT_DMA3_CUR:
 | |
|         val = s->regs[saddr];
 | |
|         break;
 | |
| 
 | |
|     /* DMA Channel Control */
 | |
|     case GT_DMA0_CTRL:
 | |
|     case GT_DMA1_CTRL:
 | |
|     case GT_DMA2_CTRL:
 | |
|     case GT_DMA3_CTRL:
 | |
|         val = s->regs[saddr];
 | |
|         break;
 | |
| 
 | |
|     /* DMA Arbiter */
 | |
|     case GT_DMA_ARB:
 | |
|         val = s->regs[saddr];
 | |
|         break;
 | |
| 
 | |
|     /* Timer/Counter */
 | |
|     case GT_TC0:
 | |
|     case GT_TC1:
 | |
|     case GT_TC2:
 | |
|     case GT_TC3:
 | |
|     case GT_TC_CONTROL:
 | |
|         val = s->regs[saddr];
 | |
|         break;
 | |
| 
 | |
|     /* PCI Internal */
 | |
|     case GT_PCI0_CFGADDR:
 | |
|         val = phb->config_reg;
 | |
|         break;
 | |
|     case GT_PCI0_CFGDATA:
 | |
|         if (!(phb->config_reg & (1 << 31))) {
 | |
|             val = 0xffffffff;
 | |
|         } else {
 | |
|             val = pci_data_read(phb->bus, phb->config_reg, 4);
 | |
|         }
 | |
|         if (!(s->regs[GT_PCI0_CMD] & 1) && (phb->config_reg & 0x00fff800)) {
 | |
|             val = bswap32(val);
 | |
|         }
 | |
|         break;
 | |
| 
 | |
|     case GT_PCI0_CMD:
 | |
|     case GT_PCI0_TOR:
 | |
|     case GT_PCI0_BS_SCS10:
 | |
|     case GT_PCI0_BS_SCS32:
 | |
|     case GT_PCI0_BS_CS20:
 | |
|     case GT_PCI0_BS_CS3BT:
 | |
|     case GT_PCI1_IACK:
 | |
|     case GT_PCI0_BARE:
 | |
|     case GT_PCI0_PREFMBR:
 | |
|     case GT_PCI0_SCS10_BAR:
 | |
|     case GT_PCI0_SCS32_BAR:
 | |
|     case GT_PCI0_CS20_BAR:
 | |
|     case GT_PCI0_CS3BT_BAR:
 | |
|     case GT_PCI0_SSCS10_BAR:
 | |
|     case GT_PCI0_SSCS32_BAR:
 | |
|     case GT_PCI0_SCS3BT_BAR:
 | |
|     case GT_PCI1_CMD:
 | |
|     case GT_PCI1_TOR:
 | |
|     case GT_PCI1_BS_SCS10:
 | |
|     case GT_PCI1_BS_SCS32:
 | |
|     case GT_PCI1_BS_CS20:
 | |
|     case GT_PCI1_BS_CS3BT:
 | |
|     case GT_PCI1_BARE:
 | |
|     case GT_PCI1_PREFMBR:
 | |
|     case GT_PCI1_SCS10_BAR:
 | |
|     case GT_PCI1_SCS32_BAR:
 | |
|     case GT_PCI1_CS20_BAR:
 | |
|     case GT_PCI1_CS3BT_BAR:
 | |
|     case GT_PCI1_SSCS10_BAR:
 | |
|     case GT_PCI1_SSCS32_BAR:
 | |
|     case GT_PCI1_SCS3BT_BAR:
 | |
|     case GT_PCI1_CFGADDR:
 | |
|     case GT_PCI1_CFGDATA:
 | |
|         val = s->regs[saddr];
 | |
|         break;
 | |
| 
 | |
|     /* Interrupts */
 | |
|     case GT_INTRCAUSE:
 | |
|         val = s->regs[saddr];
 | |
|         trace_gt64120_read("INTRCAUSE", size << 1, val);
 | |
|         break;
 | |
|     case GT_INTRMASK:
 | |
|         val = s->regs[saddr];
 | |
|         trace_gt64120_read("INTRMASK", size << 1, val);
 | |
|         break;
 | |
|     case GT_PCI0_ICMASK:
 | |
|         val = s->regs[saddr];
 | |
|         trace_gt64120_read("ICMASK", size << 1, val);
 | |
|         break;
 | |
|     case GT_PCI0_SERR0MASK:
 | |
|         val = s->regs[saddr];
 | |
|         trace_gt64120_read("SERR0MASK", size << 1, val);
 | |
|         break;
 | |
| 
 | |
|     /* Reserved when only PCI_0 is configured. */
 | |
|     case GT_HINTRCAUSE:
 | |
|     case GT_CPU_INTSEL:
 | |
|     case GT_PCI0_INTSEL:
 | |
|     case GT_HINTRMASK:
 | |
|     case GT_PCI0_HICMASK:
 | |
|     case GT_PCI1_SERR1MASK:
 | |
|         val = s->regs[saddr];
 | |
|         break;
 | |
| 
 | |
|     default:
 | |
|         val = s->regs[saddr];
 | |
|         qemu_log_mask(LOG_GUEST_ERROR,
 | |
|                       "gt64120: Illegal register read "
 | |
|                       "reg:0x03%x size:%u value:0x%0*x\n",
 | |
|                       saddr << 2, size, size << 1, val);
 | |
|         break;
 | |
|     }
 | |
| 
 | |
|     if (!(s->regs[GT_CPU] & 0x00001000)) {
 | |
|         val = bswap32(val);
 | |
|     }
 | |
| 
 | |
|     return val;
 | |
| }
 | |
| 
 | |
| static const MemoryRegionOps isd_mem_ops = {
 | |
|     .read = gt64120_readl,
 | |
|     .write = gt64120_writel,
 | |
|     .endianness = DEVICE_NATIVE_ENDIAN,
 | |
| };
 | |
| 
 | |
| static int gt64120_pci_map_irq(PCIDevice *pci_dev, int irq_num)
 | |
| {
 | |
|     int slot;
 | |
| 
 | |
|     slot = (pci_dev->devfn >> 3);
 | |
| 
 | |
|     switch (slot) {
 | |
|     /* PIIX4 USB */
 | |
|     case 10:
 | |
|         return 3;
 | |
|     /* AMD 79C973 Ethernet */
 | |
|     case 11:
 | |
|         return 1;
 | |
|     /* Crystal 4281 Sound */
 | |
|     case 12:
 | |
|         return 2;
 | |
|     /* PCI slot 1 to 4 */
 | |
|     case 18 ... 21:
 | |
|         return ((slot - 18) + irq_num) & 0x03;
 | |
|     /* Unknown device, don't do any translation */
 | |
|     default:
 | |
|         return irq_num;
 | |
|     }
 | |
| }
 | |
| 
 | |
| static int pci_irq_levels[4];
 | |
| 
 | |
| static void gt64120_pci_set_irq(void *opaque, int irq_num, int level)
 | |
| {
 | |
|     int i, pic_irq, pic_level;
 | |
|     qemu_irq *pic = opaque;
 | |
| 
 | |
|     pci_irq_levels[irq_num] = level;
 | |
| 
 | |
|     /* now we change the pic irq level according to the piix irq mappings */
 | |
|     /* XXX: optimize */
 | |
|     pic_irq = piix4_dev->config[0x60 + irq_num];
 | |
|     if (pic_irq < 16) {
 | |
|         /* The pic level is the logical OR of all the PCI irqs mapped to it. */
 | |
|         pic_level = 0;
 | |
|         for (i = 0; i < 4; i++) {
 | |
|             if (pic_irq == piix4_dev->config[0x60 + i]) {
 | |
|                 pic_level |= pci_irq_levels[i];
 | |
|             }
 | |
|         }
 | |
|         qemu_set_irq(pic[pic_irq], pic_level);
 | |
|     }
 | |
| }
 | |
| 
 | |
| 
 | |
| static void gt64120_reset(DeviceState *dev)
 | |
| {
 | |
|     GT64120State *s = GT64120_PCI_HOST_BRIDGE(dev);
 | |
| 
 | |
|     /* FIXME: Malta specific hw assumptions ahead */
 | |
| 
 | |
|     /* CPU Configuration */
 | |
| #ifdef TARGET_WORDS_BIGENDIAN
 | |
|     s->regs[GT_CPU]           = 0x00000000;
 | |
| #else
 | |
|     s->regs[GT_CPU]           = 0x00001000;
 | |
| #endif
 | |
|     s->regs[GT_MULTI]         = 0x00000003;
 | |
| 
 | |
|     /* CPU Address decode */
 | |
|     s->regs[GT_SCS10LD]       = 0x00000000;
 | |
|     s->regs[GT_SCS10HD]       = 0x00000007;
 | |
|     s->regs[GT_SCS32LD]       = 0x00000008;
 | |
|     s->regs[GT_SCS32HD]       = 0x0000000f;
 | |
|     s->regs[GT_CS20LD]        = 0x000000e0;
 | |
|     s->regs[GT_CS20HD]        = 0x00000070;
 | |
|     s->regs[GT_CS3BOOTLD]     = 0x000000f8;
 | |
|     s->regs[GT_CS3BOOTHD]     = 0x0000007f;
 | |
| 
 | |
|     s->regs[GT_PCI0IOLD]      = 0x00000080;
 | |
|     s->regs[GT_PCI0IOHD]      = 0x0000000f;
 | |
|     s->regs[GT_PCI0M0LD]      = 0x00000090;
 | |
|     s->regs[GT_PCI0M0HD]      = 0x0000001f;
 | |
|     s->regs[GT_ISD]           = 0x000000a0;
 | |
|     s->regs[GT_PCI0M1LD]      = 0x00000790;
 | |
|     s->regs[GT_PCI0M1HD]      = 0x0000001f;
 | |
|     s->regs[GT_PCI1IOLD]      = 0x00000100;
 | |
|     s->regs[GT_PCI1IOHD]      = 0x0000000f;
 | |
|     s->regs[GT_PCI1M0LD]      = 0x00000110;
 | |
|     s->regs[GT_PCI1M0HD]      = 0x0000001f;
 | |
|     s->regs[GT_PCI1M1LD]      = 0x00000120;
 | |
|     s->regs[GT_PCI1M1HD]      = 0x0000002f;
 | |
| 
 | |
|     s->regs[GT_SCS10AR]       = 0x00000000;
 | |
|     s->regs[GT_SCS32AR]       = 0x00000008;
 | |
|     s->regs[GT_CS20R]         = 0x000000e0;
 | |
|     s->regs[GT_CS3BOOTR]      = 0x000000f8;
 | |
| 
 | |
|     s->regs[GT_PCI0IOREMAP]   = 0x00000080;
 | |
|     s->regs[GT_PCI0M0REMAP]   = 0x00000090;
 | |
|     s->regs[GT_PCI0M1REMAP]   = 0x00000790;
 | |
|     s->regs[GT_PCI1IOREMAP]   = 0x00000100;
 | |
|     s->regs[GT_PCI1M0REMAP]   = 0x00000110;
 | |
|     s->regs[GT_PCI1M1REMAP]   = 0x00000120;
 | |
| 
 | |
|     /* CPU Error Report */
 | |
|     s->regs[GT_CPUERR_ADDRLO] = 0x00000000;
 | |
|     s->regs[GT_CPUERR_ADDRHI] = 0x00000000;
 | |
|     s->regs[GT_CPUERR_DATALO] = 0xffffffff;
 | |
|     s->regs[GT_CPUERR_DATAHI] = 0xffffffff;
 | |
|     s->regs[GT_CPUERR_PARITY] = 0x000000ff;
 | |
| 
 | |
|     /* CPU Sync Barrier */
 | |
|     s->regs[GT_PCI0SYNC]      = 0x00000000;
 | |
|     s->regs[GT_PCI1SYNC]      = 0x00000000;
 | |
| 
 | |
|     /* SDRAM and Device Address Decode */
 | |
|     s->regs[GT_SCS0LD]        = 0x00000000;
 | |
|     s->regs[GT_SCS0HD]        = 0x00000007;
 | |
|     s->regs[GT_SCS1LD]        = 0x00000008;
 | |
|     s->regs[GT_SCS1HD]        = 0x0000000f;
 | |
|     s->regs[GT_SCS2LD]        = 0x00000010;
 | |
|     s->regs[GT_SCS2HD]        = 0x00000017;
 | |
|     s->regs[GT_SCS3LD]        = 0x00000018;
 | |
|     s->regs[GT_SCS3HD]        = 0x0000001f;
 | |
|     s->regs[GT_CS0LD]         = 0x000000c0;
 | |
|     s->regs[GT_CS0HD]         = 0x000000c7;
 | |
|     s->regs[GT_CS1LD]         = 0x000000c8;
 | |
|     s->regs[GT_CS1HD]         = 0x000000cf;
 | |
|     s->regs[GT_CS2LD]         = 0x000000d0;
 | |
|     s->regs[GT_CS2HD]         = 0x000000df;
 | |
|     s->regs[GT_CS3LD]         = 0x000000f0;
 | |
|     s->regs[GT_CS3HD]         = 0x000000fb;
 | |
|     s->regs[GT_BOOTLD]        = 0x000000fc;
 | |
|     s->regs[GT_BOOTHD]        = 0x000000ff;
 | |
|     s->regs[GT_ADERR]         = 0xffffffff;
 | |
| 
 | |
|     /* SDRAM Configuration */
 | |
|     s->regs[GT_SDRAM_CFG]     = 0x00000200;
 | |
|     s->regs[GT_SDRAM_OPMODE]  = 0x00000000;
 | |
|     s->regs[GT_SDRAM_BM]      = 0x00000007;
 | |
|     s->regs[GT_SDRAM_ADDRDECODE] = 0x00000002;
 | |
| 
 | |
|     /* SDRAM Parameters */
 | |
|     s->regs[GT_SDRAM_B0]      = 0x00000005;
 | |
|     s->regs[GT_SDRAM_B1]      = 0x00000005;
 | |
|     s->regs[GT_SDRAM_B2]      = 0x00000005;
 | |
|     s->regs[GT_SDRAM_B3]      = 0x00000005;
 | |
| 
 | |
|     /* ECC */
 | |
|     s->regs[GT_ECC_ERRDATALO] = 0x00000000;
 | |
|     s->regs[GT_ECC_ERRDATAHI] = 0x00000000;
 | |
|     s->regs[GT_ECC_MEM]       = 0x00000000;
 | |
|     s->regs[GT_ECC_CALC]      = 0x00000000;
 | |
|     s->regs[GT_ECC_ERRADDR]   = 0x00000000;
 | |
| 
 | |
|     /* Device Parameters */
 | |
|     s->regs[GT_DEV_B0]        = 0x386fffff;
 | |
|     s->regs[GT_DEV_B1]        = 0x386fffff;
 | |
|     s->regs[GT_DEV_B2]        = 0x386fffff;
 | |
|     s->regs[GT_DEV_B3]        = 0x386fffff;
 | |
|     s->regs[GT_DEV_BOOT]      = 0x146fffff;
 | |
| 
 | |
|     /* DMA registers are all zeroed at reset */
 | |
| 
 | |
|     /* Timer/Counter */
 | |
|     s->regs[GT_TC0]           = 0xffffffff;
 | |
|     s->regs[GT_TC1]           = 0x00ffffff;
 | |
|     s->regs[GT_TC2]           = 0x00ffffff;
 | |
|     s->regs[GT_TC3]           = 0x00ffffff;
 | |
|     s->regs[GT_TC_CONTROL]    = 0x00000000;
 | |
| 
 | |
|     /* PCI Internal */
 | |
| #ifdef TARGET_WORDS_BIGENDIAN
 | |
|     s->regs[GT_PCI0_CMD]      = 0x00000000;
 | |
| #else
 | |
|     s->regs[GT_PCI0_CMD]      = 0x00010001;
 | |
| #endif
 | |
|     s->regs[GT_PCI0_TOR]      = 0x0000070f;
 | |
|     s->regs[GT_PCI0_BS_SCS10] = 0x00fff000;
 | |
|     s->regs[GT_PCI0_BS_SCS32] = 0x00fff000;
 | |
|     s->regs[GT_PCI0_BS_CS20]  = 0x01fff000;
 | |
|     s->regs[GT_PCI0_BS_CS3BT] = 0x00fff000;
 | |
|     s->regs[GT_PCI1_IACK]     = 0x00000000;
 | |
|     s->regs[GT_PCI0_IACK]     = 0x00000000;
 | |
|     s->regs[GT_PCI0_BARE]     = 0x0000000f;
 | |
|     s->regs[GT_PCI0_PREFMBR]  = 0x00000040;
 | |
|     s->regs[GT_PCI0_SCS10_BAR] = 0x00000000;
 | |
|     s->regs[GT_PCI0_SCS32_BAR] = 0x01000000;
 | |
|     s->regs[GT_PCI0_CS20_BAR] = 0x1c000000;
 | |
|     s->regs[GT_PCI0_CS3BT_BAR] = 0x1f000000;
 | |
|     s->regs[GT_PCI0_SSCS10_BAR] = 0x00000000;
 | |
|     s->regs[GT_PCI0_SSCS32_BAR] = 0x01000000;
 | |
|     s->regs[GT_PCI0_SCS3BT_BAR] = 0x1f000000;
 | |
| #ifdef TARGET_WORDS_BIGENDIAN
 | |
|     s->regs[GT_PCI1_CMD]      = 0x00000000;
 | |
| #else
 | |
|     s->regs[GT_PCI1_CMD]      = 0x00010001;
 | |
| #endif
 | |
|     s->regs[GT_PCI1_TOR]      = 0x0000070f;
 | |
|     s->regs[GT_PCI1_BS_SCS10] = 0x00fff000;
 | |
|     s->regs[GT_PCI1_BS_SCS32] = 0x00fff000;
 | |
|     s->regs[GT_PCI1_BS_CS20]  = 0x01fff000;
 | |
|     s->regs[GT_PCI1_BS_CS3BT] = 0x00fff000;
 | |
|     s->regs[GT_PCI1_BARE]     = 0x0000000f;
 | |
|     s->regs[GT_PCI1_PREFMBR]  = 0x00000040;
 | |
|     s->regs[GT_PCI1_SCS10_BAR] = 0x00000000;
 | |
|     s->regs[GT_PCI1_SCS32_BAR] = 0x01000000;
 | |
|     s->regs[GT_PCI1_CS20_BAR] = 0x1c000000;
 | |
|     s->regs[GT_PCI1_CS3BT_BAR] = 0x1f000000;
 | |
|     s->regs[GT_PCI1_SSCS10_BAR] = 0x00000000;
 | |
|     s->regs[GT_PCI1_SSCS32_BAR] = 0x01000000;
 | |
|     s->regs[GT_PCI1_SCS3BT_BAR] = 0x1f000000;
 | |
|     s->regs[GT_PCI1_CFGADDR]  = 0x00000000;
 | |
|     s->regs[GT_PCI1_CFGDATA]  = 0x00000000;
 | |
|     s->regs[GT_PCI0_CFGADDR]  = 0x00000000;
 | |
| 
 | |
|     /* Interrupt registers are all zeroed at reset */
 | |
| 
 | |
|     gt64120_isd_mapping(s);
 | |
|     gt64120_pci_mapping(s);
 | |
| }
 | |
| 
 | |
| PCIBus *gt64120_register(qemu_irq *pic)
 | |
| {
 | |
|     GT64120State *d;
 | |
|     PCIHostState *phb;
 | |
|     DeviceState *dev;
 | |
| 
 | |
|     dev = qdev_create(NULL, TYPE_GT64120_PCI_HOST_BRIDGE);
 | |
|     d = GT64120_PCI_HOST_BRIDGE(dev);
 | |
|     phb = PCI_HOST_BRIDGE(dev);
 | |
|     memory_region_init(&d->pci0_mem, OBJECT(dev), "pci0-mem", 4 * GiB);
 | |
|     address_space_init(&d->pci0_mem_as, &d->pci0_mem, "pci0-mem");
 | |
|     phb->bus = pci_register_root_bus(dev, "pci",
 | |
|                                      gt64120_pci_set_irq, gt64120_pci_map_irq,
 | |
|                                      pic,
 | |
|                                      &d->pci0_mem,
 | |
|                                      get_system_io(),
 | |
|                                      PCI_DEVFN(18, 0), 4, TYPE_PCI_BUS);
 | |
|     qdev_init_nofail(dev);
 | |
|     memory_region_init_io(&d->ISD_mem, OBJECT(dev), &isd_mem_ops, d,
 | |
|                           "isd-mem", 0x1000);
 | |
| 
 | |
|     pci_create_simple(phb->bus, PCI_DEVFN(0, 0), "gt64120_pci");
 | |
|     return phb->bus;
 | |
| }
 | |
| 
 | |
| static void gt64120_pci_realize(PCIDevice *d, Error **errp)
 | |
| {
 | |
|     /* FIXME: Malta specific hw assumptions ahead */
 | |
|     pci_set_word(d->config + PCI_COMMAND, 0);
 | |
|     pci_set_word(d->config + PCI_STATUS,
 | |
|                  PCI_STATUS_FAST_BACK | PCI_STATUS_DEVSEL_MEDIUM);
 | |
|     pci_config_set_prog_interface(d->config, 0);
 | |
|     pci_set_long(d->config + PCI_BASE_ADDRESS_0, 0x00000008);
 | |
|     pci_set_long(d->config + PCI_BASE_ADDRESS_1, 0x01000008);
 | |
|     pci_set_long(d->config + PCI_BASE_ADDRESS_2, 0x1c000000);
 | |
|     pci_set_long(d->config + PCI_BASE_ADDRESS_3, 0x1f000000);
 | |
|     pci_set_long(d->config + PCI_BASE_ADDRESS_4, 0x14000000);
 | |
|     pci_set_long(d->config + PCI_BASE_ADDRESS_5, 0x14000001);
 | |
|     pci_set_byte(d->config + 0x3d, 0x01);
 | |
| }
 | |
| 
 | |
| static void gt64120_pci_class_init(ObjectClass *klass, void *data)
 | |
| {
 | |
|     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
 | |
|     DeviceClass *dc = DEVICE_CLASS(klass);
 | |
| 
 | |
|     k->realize = gt64120_pci_realize;
 | |
|     k->vendor_id = PCI_VENDOR_ID_MARVELL;
 | |
|     k->device_id = PCI_DEVICE_ID_MARVELL_GT6412X;
 | |
|     k->revision = 0x10;
 | |
|     k->class_id = PCI_CLASS_BRIDGE_HOST;
 | |
|     /*
 | |
|      * PCI-facing part of the host bridge, not usable without the
 | |
|      * host-facing part, which can't be device_add'ed, yet.
 | |
|      */
 | |
|     dc->user_creatable = false;
 | |
| }
 | |
| 
 | |
| static const TypeInfo gt64120_pci_info = {
 | |
|     .name          = "gt64120_pci",
 | |
|     .parent        = TYPE_PCI_DEVICE,
 | |
|     .instance_size = sizeof(PCIDevice),
 | |
|     .class_init    = gt64120_pci_class_init,
 | |
|     .interfaces = (InterfaceInfo[]) {
 | |
|         { INTERFACE_CONVENTIONAL_PCI_DEVICE },
 | |
|         { },
 | |
|     },
 | |
| };
 | |
| 
 | |
| static void gt64120_class_init(ObjectClass *klass, void *data)
 | |
| {
 | |
|     DeviceClass *dc = DEVICE_CLASS(klass);
 | |
| 
 | |
|     set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
 | |
|     dc->reset = gt64120_reset;
 | |
|     dc->vmsd = &vmstate_gt64120;
 | |
| }
 | |
| 
 | |
| static const TypeInfo gt64120_info = {
 | |
|     .name          = TYPE_GT64120_PCI_HOST_BRIDGE,
 | |
|     .parent        = TYPE_PCI_HOST_BRIDGE,
 | |
|     .instance_size = sizeof(GT64120State),
 | |
|     .class_init    = gt64120_class_init,
 | |
| };
 | |
| 
 | |
| static void gt64120_pci_register_types(void)
 | |
| {
 | |
|     type_register_static(>64120_info);
 | |
|     type_register_static(>64120_pci_info);
 | |
| }
 | |
| 
 | |
| type_init(gt64120_pci_register_types)
 |