diff options
| -rw-r--r-- | hw/intc/xive.c | 2 | ||||
| -rw-r--r-- | hw/intc/xive2.c | 160 | ||||
| -rw-r--r-- | include/hw/ppc/xive2.h | 2 | ||||
| -rw-r--r-- | include/hw/ppc/xive2_regs.h | 2 | ||||
| -rw-r--r-- | include/hw/ppc/xive_regs.h | 3 |
5 files changed, 142 insertions, 27 deletions
diff --git a/hw/intc/xive.c b/hw/intc/xive.c index 0e81678ab3..4532cfc467 100644 --- a/hw/intc/xive.c +++ b/hw/intc/xive.c @@ -547,6 +547,8 @@ static const XiveTmOp xive2_tm_operations[] = { xive_tm_pull_pool_ctx }, { XIVE_TM_HV_PAGE, TM_SPC_PULL_POOL_CTX, 8, NULL, xive_tm_pull_pool_ctx }, + { XIVE_TM_HV_PAGE, TM_SPC_PULL_OS_CTX_OL, 1, xive2_tm_pull_os_ctx_ol, + NULL }, }; static const XiveTmOp *xive_tm_find_op(XivePresenter *xptr, hwaddr offset, diff --git a/hw/intc/xive2.c b/hw/intc/xive2.c index 1f150685bf..fbd05aa9f5 100644 --- a/hw/intc/xive2.c +++ b/hw/intc/xive2.c @@ -26,6 +26,23 @@ uint32_t xive2_router_get_config(Xive2Router *xrtr) return xrc->get_config(xrtr); } +static int xive2_router_get_block_id(Xive2Router *xrtr) +{ + Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr); + + return xrc->get_block_id(xrtr); +} + +static uint64_t xive2_nvp_reporting_addr(Xive2Nvp *nvp) +{ + uint64_t cache_addr; + + cache_addr = xive_get_field32(NVP2_W6_REPORTING_LINE, nvp->w6) << 24 | + xive_get_field32(NVP2_W7_REPORTING_LINE, nvp->w7); + cache_addr <<= 8; /* aligned on a cache line pair */ + return cache_addr; +} + void xive2_eas_pic_print_info(Xive2Eas *eas, uint32_t lisn, GString *buf) { if (!xive2_eas_is_valid(eas)) { @@ -270,6 +287,27 @@ static void xive2_os_cam_decode(uint32_t cam, uint8_t *nvp_blk, *ho = !!(cam & TM2_QW1W2_HO); } + +/* + * Encode the HW CAM line with 7bit or 8bit thread id. The thread id + * width and block id width is configurable at the IC level. + * + * chipid << 24 | 0000 0000 0000 0000 1 threadid (7Bit) + * chipid << 24 | 0000 0000 0000 0001 threadid (8Bit) + */ +static uint32_t xive2_tctx_hw_cam_line(XivePresenter *xptr, XiveTCTX *tctx) +{ + Xive2Router *xrtr = XIVE2_ROUTER(xptr); + CPUPPCState *env = &POWERPC_CPU(tctx->cs)->env; + uint32_t pir = env->spr_cb[SPR_PIR].default_value; + uint8_t blk = xive2_router_get_block_id(xrtr); + uint8_t tid_shift = + xive2_router_get_config(xrtr) & XIVE2_THREADID_8BITS ? 8 : 7; + uint8_t tid_mask = (1 << tid_shift) - 1; + + return xive2_nvp_cam_line(blk, 1 << tid_shift | (pir & tid_mask)); +} + uint64_t xive2_tm_pull_os_ctx(XivePresenter *xptr, XiveTCTX *tctx, hwaddr offset, unsigned size) { @@ -301,6 +339,101 @@ uint64_t xive2_tm_pull_os_ctx(XivePresenter *xptr, XiveTCTX *tctx, return qw1w2; } +#define REPORT_LINE_GEN1_SIZE 16 + +static void xive2_tm_report_line_gen1(XiveTCTX *tctx, uint8_t *data, + uint8_t size) +{ + uint8_t *regs = tctx->regs; + + g_assert(size == REPORT_LINE_GEN1_SIZE); + memset(data, 0, size); + /* + * See xive architecture for description of what is saved. It is + * hand-picked information to fit in 16 bytes. + */ + data[0x0] = regs[TM_QW3_HV_PHYS + TM_NSR]; + data[0x1] = regs[TM_QW3_HV_PHYS + TM_CPPR]; + data[0x2] = regs[TM_QW3_HV_PHYS + TM_IPB]; + data[0x3] = regs[TM_QW2_HV_POOL + TM_IPB]; + data[0x4] = regs[TM_QW1_OS + TM_ACK_CNT]; + data[0x5] = regs[TM_QW3_HV_PHYS + TM_LGS]; + data[0x6] = 0xFF; + data[0x7] = regs[TM_QW3_HV_PHYS + TM_WORD2] & 0x80; + data[0x7] |= (regs[TM_QW2_HV_POOL + TM_WORD2] & 0x80) >> 1; + data[0x7] |= (regs[TM_QW1_OS + TM_WORD2] & 0x80) >> 2; + data[0x7] |= (regs[TM_QW3_HV_PHYS + TM_WORD2] & 0x3); + data[0x8] = regs[TM_QW1_OS + TM_NSR]; + data[0x9] = regs[TM_QW1_OS + TM_CPPR]; + data[0xA] = regs[TM_QW1_OS + TM_IPB]; + data[0xB] = regs[TM_QW1_OS + TM_LGS]; + if (regs[TM_QW0_USER + TM_WORD2] & 0x80) { + /* + * Logical server extension, except VU bit replaced by EB bit + * from NSR + */ + data[0xC] = regs[TM_QW0_USER + TM_WORD2]; + data[0xC] &= ~0x80; + data[0xC] |= regs[TM_QW0_USER + TM_NSR] & 0x80; + data[0xD] = regs[TM_QW0_USER + TM_WORD2 + 1]; + data[0xE] = regs[TM_QW0_USER + TM_WORD2 + 2]; + data[0xF] = regs[TM_QW0_USER + TM_WORD2 + 3]; + } +} + +void xive2_tm_pull_os_ctx_ol(XivePresenter *xptr, XiveTCTX *tctx, + hwaddr offset, uint64_t value, unsigned size) +{ + Xive2Router *xrtr = XIVE2_ROUTER(xptr); + uint32_t hw_cam, nvp_idx, xive2_cfg, reserved; + uint8_t nvp_blk; + Xive2Nvp nvp; + uint64_t phys_addr; + MemTxResult result; + + hw_cam = xive2_tctx_hw_cam_line(xptr, tctx); + nvp_blk = xive2_nvp_blk(hw_cam); + nvp_idx = xive2_nvp_idx(hw_cam); + + if (xive2_router_get_nvp(xrtr, nvp_blk, nvp_idx, &nvp)) { + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: No NVP %x/%x\n", + nvp_blk, nvp_idx); + return; + } + + if (!xive2_nvp_is_valid(&nvp)) { + qemu_log_mask(LOG_GUEST_ERROR, "XIVE: invalid NVP %x/%x\n", + nvp_blk, nvp_idx); + return; + } + + xive2_cfg = xive2_router_get_config(xrtr); + + phys_addr = xive2_nvp_reporting_addr(&nvp) + 0x80; /* odd line */ + if (xive2_cfg & XIVE2_GEN1_TIMA_OS) { + uint8_t pull_ctxt[REPORT_LINE_GEN1_SIZE]; + + xive2_tm_report_line_gen1(tctx, pull_ctxt, REPORT_LINE_GEN1_SIZE); + result = dma_memory_write(&address_space_memory, phys_addr, + pull_ctxt, REPORT_LINE_GEN1_SIZE, + MEMTXATTRS_UNSPECIFIED); + assert(result == MEMTX_OK); + } else { + result = dma_memory_write(&address_space_memory, phys_addr, + &tctx->regs, sizeof(tctx->regs), + MEMTXATTRS_UNSPECIFIED); + assert(result == MEMTX_OK); + reserved = 0xFFFFFFFF; + result = dma_memory_write(&address_space_memory, phys_addr + 12, + &reserved, sizeof(reserved), + MEMTXATTRS_UNSPECIFIED); + assert(result == MEMTX_OK); + } + + /* the rest is similar to pull OS context to registers */ + xive2_tm_pull_os_ctx(xptr, tctx, offset, size); +} + static uint8_t xive2_tctx_restore_os_ctx(Xive2Router *xrtr, XiveTCTX *tctx, uint8_t nvp_blk, uint32_t nvp_idx, Xive2Nvp *nvp) @@ -471,33 +604,6 @@ int xive2_router_write_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx, return xrc->write_nvp(xrtr, nvp_blk, nvp_idx, nvp, word_number); } -static int xive2_router_get_block_id(Xive2Router *xrtr) -{ - Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr); - - return xrc->get_block_id(xrtr); -} - -/* - * Encode the HW CAM line with 7bit or 8bit thread id. The thread id - * width and block id width is configurable at the IC level. - * - * chipid << 24 | 0000 0000 0000 0000 1 threadid (7Bit) - * chipid << 24 | 0000 0000 0000 0001 threadid (8Bit) - */ -static uint32_t xive2_tctx_hw_cam_line(XivePresenter *xptr, XiveTCTX *tctx) -{ - Xive2Router *xrtr = XIVE2_ROUTER(xptr); - CPUPPCState *env = &POWERPC_CPU(tctx->cs)->env; - uint32_t pir = env->spr_cb[SPR_PIR].default_value; - uint8_t blk = xive2_router_get_block_id(xrtr); - uint8_t tid_shift = - xive2_router_get_config(xrtr) & XIVE2_THREADID_8BITS ? 8 : 7; - uint8_t tid_mask = (1 << tid_shift) - 1; - - return xive2_nvp_cam_line(blk, 1 << tid_shift | (pir & tid_mask)); -} - /* * The thread context register words are in big-endian format. */ diff --git a/include/hw/ppc/xive2.h b/include/hw/ppc/xive2.h index ab68f8d157..654f485e9b 100644 --- a/include/hw/ppc/xive2.h +++ b/include/hw/ppc/xive2.h @@ -107,5 +107,7 @@ void xive2_tm_push_os_ctx(XivePresenter *xptr, XiveTCTX *tctx, hwaddr offset, uint64_t value, unsigned size); uint64_t xive2_tm_pull_os_ctx(XivePresenter *xptr, XiveTCTX *tctx, hwaddr offset, unsigned size); +void xive2_tm_pull_os_ctx_ol(XivePresenter *xptr, XiveTCTX *tctx, + hwaddr offset, uint64_t value, unsigned size); #endif /* PPC_XIVE2_H */ diff --git a/include/hw/ppc/xive2_regs.h b/include/hw/ppc/xive2_regs.h index 4349d009d0..7acf7dccf3 100644 --- a/include/hw/ppc/xive2_regs.h +++ b/include/hw/ppc/xive2_regs.h @@ -171,7 +171,9 @@ typedef struct Xive2Nvp { #define NVP2_W5_VP_END_BLOCK PPC_BITMASK32(4, 7) #define NVP2_W5_VP_END_INDEX PPC_BITMASK32(8, 31) uint32_t w6; +#define NVP2_W6_REPORTING_LINE PPC_BITMASK32(4, 31) uint32_t w7; +#define NVP2_W7_REPORTING_LINE PPC_BITMASK32(0, 23) } Xive2Nvp; #define xive2_nvp_is_valid(nvp) (be32_to_cpu((nvp)->w0) & NVP2_W0_VALID) diff --git a/include/hw/ppc/xive_regs.h b/include/hw/ppc/xive_regs.h index 9062c6abf6..27a744d50d 100644 --- a/include/hw/ppc/xive_regs.h +++ b/include/hw/ppc/xive_regs.h @@ -77,6 +77,7 @@ #define TM_LSMFB 0x3 /* - + + + */ #define TM_ACK_CNT 0x4 /* - + - - */ #define TM_INC 0x5 /* - + - + */ +#define TM_LGS 0x5 /* + + + + */ /* Rename P10 */ #define TM_AGE 0x6 /* - + - + */ #define TM_PIPR 0x7 /* - + - + */ #define TM_OGEN 0xF /* - + - - */ /* P10 only */ @@ -129,6 +130,8 @@ #define TM_SPC_PULL_USR_CTX_OL 0xc08 /* Store8 Pull/Inval usr ctx to odd */ /* line */ #define TM_SPC_ACK_OS_EL 0xc10 /* Store8 ack OS irq to even line */ +#define TM_SPC_PULL_OS_CTX_OL 0xc18 /* Pull/Invalidate OS context to */ + /* odd Thread reporting line */ #define TM_SPC_ACK_HV_POOL_EL 0xc20 /* Store8 ack HV evt pool to even */ /* line */ #define TM_SPC_ACK_HV_EL 0xc30 /* Store8 ack HV irq to even line */ |