diff options
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_msg.c | 173 | ||||
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_msg_arm64.h | 196 | ||||
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_msg_x86.h | 185 |
3 files changed, 196 insertions, 358 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c b/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c index 2651fe0ef518..1f15990d3934 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c @@ -48,8 +48,6 @@ #define RETRIES 3 -#define VMW_HYPERVISOR_MAGIC 0x564D5868 - #define VMW_PORT_CMD_MSG 30 #define VMW_PORT_CMD_HB_MSG 0 #define VMW_PORT_CMD_OPEN_CHANNEL (MSG_TYPE_OPEN << 16 | VMW_PORT_CMD_MSG) @@ -104,20 +102,18 @@ static const char* const mksstat_kern_name_desc[MKSSTAT_KERN_COUNT][2] = */ static int vmw_open_channel(struct rpc_channel *channel, unsigned int protocol) { - unsigned long eax, ebx, ecx, edx, si = 0, di = 0; + u32 ecx, edx, esi, edi; - VMW_PORT(VMW_PORT_CMD_OPEN_CHANNEL, - (protocol | GUESTMSG_FLAG_COOKIE), si, di, - 0, - VMW_HYPERVISOR_MAGIC, - eax, ebx, ecx, edx, si, di); + vmware_hypercall6(VMW_PORT_CMD_OPEN_CHANNEL, + (protocol | GUESTMSG_FLAG_COOKIE), 0, + &ecx, &edx, &esi, &edi); if ((HIGH_WORD(ecx) & MESSAGE_STATUS_SUCCESS) == 0) return -EINVAL; channel->channel_id = HIGH_WORD(edx); - channel->cookie_high = si; - channel->cookie_low = di; + channel->cookie_high = esi; + channel->cookie_low = edi; return 0; } @@ -133,17 +129,13 @@ static int vmw_open_channel(struct rpc_channel *channel, unsigned int protocol) */ static int vmw_close_channel(struct rpc_channel *channel) { - unsigned long eax, ebx, ecx, edx, si, di; - - /* Set up additional parameters */ - si = channel->cookie_high; - di = channel->cookie_low; + u32 ecx; - VMW_PORT(VMW_PORT_CMD_CLOSE_CHANNEL, - 0, si, di, - channel->channel_id << 16, - VMW_HYPERVISOR_MAGIC, - eax, ebx, ecx, edx, si, di); + vmware_hypercall5(VMW_PORT_CMD_CLOSE_CHANNEL, + 0, channel->channel_id << 16, + channel->cookie_high, + channel->cookie_low, + &ecx); if ((HIGH_WORD(ecx) & MESSAGE_STATUS_SUCCESS) == 0) return -EINVAL; @@ -163,24 +155,18 @@ static int vmw_close_channel(struct rpc_channel *channel) static unsigned long vmw_port_hb_out(struct rpc_channel *channel, const char *msg, bool hb) { - unsigned long si, di, eax, ebx, ecx, edx; + u32 ebx, ecx; unsigned long msg_len = strlen(msg); /* HB port can't access encrypted memory. */ if (hb && !cc_platform_has(CC_ATTR_MEM_ENCRYPT)) { - unsigned long bp = channel->cookie_high; - u32 channel_id = (channel->channel_id << 16); - - si = (uintptr_t) msg; - di = channel->cookie_low; - - VMW_PORT_HB_OUT( + vmware_hypercall_hb_out( (MESSAGE_STATUS_SUCCESS << 16) | VMW_PORT_CMD_HB_MSG, - msg_len, si, di, - VMWARE_HYPERVISOR_HB | channel_id | - VMWARE_HYPERVISOR_OUT, - VMW_HYPERVISOR_MAGIC, bp, - eax, ebx, ecx, edx, si, di); + msg_len, + channel->channel_id << 16, + (uintptr_t) msg, channel->cookie_low, + channel->cookie_high, + &ebx); return ebx; } @@ -194,14 +180,13 @@ static unsigned long vmw_port_hb_out(struct rpc_channel *channel, memcpy(&word, msg, bytes); msg_len -= bytes; msg += bytes; - si = channel->cookie_high; - di = channel->cookie_low; - - VMW_PORT(VMW_PORT_CMD_MSG | (MSG_TYPE_SENDPAYLOAD << 16), - word, si, di, - channel->channel_id << 16, - VMW_HYPERVISOR_MAGIC, - eax, ebx, ecx, edx, si, di); + + vmware_hypercall5(VMW_PORT_CMD_MSG | + (MSG_TYPE_SENDPAYLOAD << 16), + word, channel->channel_id << 16, + channel->cookie_high, + channel->cookie_low, + &ecx); } return ecx; @@ -220,22 +205,17 @@ static unsigned long vmw_port_hb_out(struct rpc_channel *channel, static unsigned long vmw_port_hb_in(struct rpc_channel *channel, char *reply, unsigned long reply_len, bool hb) { - unsigned long si, di, eax, ebx, ecx, edx; + u32 ebx, ecx, edx; /* HB port can't access encrypted memory */ if (hb && !cc_platform_has(CC_ATTR_MEM_ENCRYPT)) { - unsigned long bp = channel->cookie_low; - u32 channel_id = (channel->channel_id << 16); - - si = channel->cookie_high; - di = (uintptr_t) reply; - - VMW_PORT_HB_IN( + vmware_hypercall_hb_in( (MESSAGE_STATUS_SUCCESS << 16) | VMW_PORT_CMD_HB_MSG, - reply_len, si, di, - VMWARE_HYPERVISOR_HB | channel_id, - VMW_HYPERVISOR_MAGIC, bp, - eax, ebx, ecx, edx, si, di); + reply_len, + channel->channel_id << 16, + channel->cookie_high, + (uintptr_t) reply, channel->cookie_low, + &ebx); return ebx; } @@ -245,14 +225,13 @@ static unsigned long vmw_port_hb_in(struct rpc_channel *channel, char *reply, while (reply_len) { unsigned int bytes = min_t(unsigned long, reply_len, 4); - si = channel->cookie_high; - di = channel->cookie_low; - - VMW_PORT(VMW_PORT_CMD_MSG | (MSG_TYPE_RECVPAYLOAD << 16), - MESSAGE_STATUS_SUCCESS, si, di, - channel->channel_id << 16, - VMW_HYPERVISOR_MAGIC, - eax, ebx, ecx, edx, si, di); + vmware_hypercall7(VMW_PORT_CMD_MSG | + (MSG_TYPE_RECVPAYLOAD << 16), + MESSAGE_STATUS_SUCCESS, + channel->channel_id << 16, + channel->cookie_high, + channel->cookie_low, + &ebx, &ecx, &edx); if ((HIGH_WORD(ecx) & MESSAGE_STATUS_SUCCESS) == 0) break; @@ -276,22 +255,18 @@ static unsigned long vmw_port_hb_in(struct rpc_channel *channel, char *reply, */ static int vmw_send_msg(struct rpc_channel *channel, const char *msg) { - unsigned long eax, ebx, ecx, edx, si, di; + u32 ebx, ecx; size_t msg_len = strlen(msg); int retries = 0; while (retries < RETRIES) { retries++; - /* Set up additional parameters */ - si = channel->cookie_high; - di = channel->cookie_low; - - VMW_PORT(VMW_PORT_CMD_SENDSIZE, - msg_len, si, di, - channel->channel_id << 16, - VMW_HYPERVISOR_MAGIC, - eax, ebx, ecx, edx, si, di); + vmware_hypercall5(VMW_PORT_CMD_SENDSIZE, + msg_len, channel->channel_id << 16, + channel->cookie_high, + channel->cookie_low, + &ecx); if ((HIGH_WORD(ecx) & MESSAGE_STATUS_SUCCESS) == 0) { /* Expected success. Give up. */ @@ -329,7 +304,7 @@ STACK_FRAME_NON_STANDARD(vmw_send_msg); static int vmw_recv_msg(struct rpc_channel *channel, void **msg, size_t *msg_len) { - unsigned long eax, ebx, ecx, edx, si, di; + u32 ebx, ecx, edx; char *reply; size_t reply_len; int retries = 0; @@ -341,15 +316,11 @@ static int vmw_recv_msg(struct rpc_channel *channel, void **msg, while (retries < RETRIES) { retries++; - /* Set up additional parameters */ - si = channel->cookie_high; - di = channel->cookie_low; - - VMW_PORT(VMW_PORT_CMD_RECVSIZE, - 0, si, di, - channel->channel_id << 16, - VMW_HYPERVISOR_MAGIC, - eax, ebx, ecx, edx, si, di); + vmware_hypercall7(VMW_PORT_CMD_RECVSIZE, + 0, channel->channel_id << 16, + channel->cookie_high, + channel->cookie_low, + &ebx, &ecx, &edx); if ((HIGH_WORD(ecx) & MESSAGE_STATUS_SUCCESS) == 0) { DRM_ERROR("Failed to get reply size for host message.\n"); @@ -384,16 +355,12 @@ static int vmw_recv_msg(struct rpc_channel *channel, void **msg, reply[reply_len] = '\0'; - - /* Ack buffer */ - si = channel->cookie_high; - di = channel->cookie_low; - - VMW_PORT(VMW_PORT_CMD_RECVSTATUS, - MESSAGE_STATUS_SUCCESS, si, di, - channel->channel_id << 16, - VMW_HYPERVISOR_MAGIC, - eax, ebx, ecx, edx, si, di); + vmware_hypercall5(VMW_PORT_CMD_RECVSTATUS, + MESSAGE_STATUS_SUCCESS, + channel->channel_id << 16, + channel->cookie_high, + channel->cookie_low, + &ecx); if ((HIGH_WORD(ecx) & MESSAGE_STATUS_SUCCESS) == 0) { kfree(reply); @@ -652,13 +619,7 @@ static inline void reset_ppn_array(PPN64 *arr, size_t size) */ static inline void hypervisor_ppn_reset_all(void) { - unsigned long eax, ebx, ecx, edx, si = 0, di = 0; - - VMW_PORT(VMW_PORT_CMD_MKSGS_RESET, - 0, si, di, - 0, - VMW_HYPERVISOR_MAGIC, - eax, ebx, ecx, edx, si, di); + vmware_hypercall1(VMW_PORT_CMD_MKSGS_RESET, 0); } /** @@ -669,13 +630,7 @@ static inline void hypervisor_ppn_reset_all(void) */ static inline void hypervisor_ppn_add(PPN64 pfn) { - unsigned long eax, ebx, ecx, edx, si = 0, di = 0; - - VMW_PORT(VMW_PORT_CMD_MKSGS_ADD_PPN, - (unsigned long)pfn, si, di, - 0, - VMW_HYPERVISOR_MAGIC, - eax, ebx, ecx, edx, si, di); + vmware_hypercall1(VMW_PORT_CMD_MKSGS_ADD_PPN, (unsigned long)pfn); } /** @@ -686,13 +641,7 @@ static inline void hypervisor_ppn_add(PPN64 pfn) */ static inline void hypervisor_ppn_remove(PPN64 pfn) { - unsigned long eax, ebx, ecx, edx, si = 0, di = 0; - - VMW_PORT(VMW_PORT_CMD_MKSGS_REMOVE_PPN, - (unsigned long)pfn, si, di, - 0, - VMW_HYPERVISOR_MAGIC, - eax, ebx, ecx, edx, si, di); + vmware_hypercall1(VMW_PORT_CMD_MKSGS_REMOVE_PPN, (unsigned long)pfn); } #if IS_ENABLED(CONFIG_DRM_VMWGFX_MKSSTATS) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_msg_arm64.h b/drivers/gpu/drm/vmwgfx/vmwgfx_msg_arm64.h index 4f40167ad61f..3c78e9338b54 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_msg_arm64.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_msg_arm64.h @@ -34,6 +34,8 @@ #define VMWARE_HYPERVISOR_HB BIT(0) #define VMWARE_HYPERVISOR_OUT BIT(1) +#define VMWARE_HYPERVISOR_MAGIC 0x564D5868 + #define X86_IO_MAGIC 0x86 #define X86_IO_W7_SIZE_SHIFT 0 @@ -45,86 +47,158 @@ #define X86_IO_W7_IMM_SHIFT 5 #define X86_IO_W7_IMM_MASK (0xff << X86_IO_W7_IMM_SHIFT) -static inline void vmw_port(unsigned long cmd, unsigned long in_ebx, - unsigned long in_si, unsigned long in_di, - unsigned long flags, unsigned long magic, - unsigned long *eax, unsigned long *ebx, - unsigned long *ecx, unsigned long *edx, - unsigned long *si, unsigned long *di) +static inline +unsigned long vmware_hypercall1(unsigned long cmd, unsigned long in1) { - register u64 x0 asm("x0") = magic; - register u64 x1 asm("x1") = in_ebx; + register u64 x0 asm("x0") = VMWARE_HYPERVISOR_MAGIC; + register u64 x1 asm("x1") = in1; register u64 x2 asm("x2") = cmd; - register u64 x3 asm("x3") = flags | VMWARE_HYPERVISOR_PORT; - register u64 x4 asm("x4") = in_si; - register u64 x5 asm("x5") = in_di; + register u64 x3 asm("x3") = VMWARE_HYPERVISOR_PORT; + register u64 x7 asm("x7") = ((u64)X86_IO_MAGIC << 32) | + X86_IO_W7_WITH | + X86_IO_W7_DIR | + (2 << X86_IO_W7_SIZE_SHIFT); + asm_inline volatile ( + "mrs xzr, mdccsr_el0; " + : "+r" (x0) + : "r" (x1), "r" (x2), "r" (x3), "r" (x7) + : "memory"); + + return x0; +} + +static inline +unsigned long vmware_hypercall5(unsigned long cmd, unsigned long in1, + unsigned long in3, unsigned long in4, + unsigned long in5, u32 *out2) +{ + register u64 x0 asm("x0") = VMWARE_HYPERVISOR_MAGIC; + register u64 x1 asm("x1") = in1; + register u64 x2 asm("x2") = cmd; + register u64 x3 asm("x3") = in3 | VMWARE_HYPERVISOR_PORT; + register u64 x4 asm("x4") = in4; + register u64 x5 asm("x5") = in5; register u64 x7 asm("x7") = ((u64)X86_IO_MAGIC << 32) | X86_IO_W7_WITH | X86_IO_W7_DIR | (2 << X86_IO_W7_SIZE_SHIFT); - asm volatile("mrs xzr, mdccsr_el0 \n\t" - : "+r"(x0), "+r"(x1), "+r"(x2), - "+r"(x3), "+r"(x4), "+r"(x5) - : "r"(x7) - :); - *eax = x0; - *ebx = x1; - *ecx = x2; - *edx = x3; - *si = x4; - *di = x5; + asm_inline volatile ( + "mrs xzr, mdccsr_el0; " + : "+r" (x0), "+r" (x2) + : "r" (x1), "r" (x3), "r" (x4), "r" (x5), "r" (x7) + : "memory"); + + *out2 = x2; + return x0; } -static inline void vmw_port_hb(unsigned long cmd, unsigned long in_ecx, - unsigned long in_si, unsigned long in_di, - unsigned long flags, unsigned long magic, - unsigned long bp, u32 w7dir, - unsigned long *eax, unsigned long *ebx, - unsigned long *ecx, unsigned long *edx, - unsigned long *si, unsigned long *di) +static inline +unsigned long vmware_hypercall6(unsigned long cmd, unsigned long in1, + unsigned long in3, u32 *out2, + u32 *out3, u32 *out4, u32 *out5) { - register u64 x0 asm("x0") = magic; + register u64 x0 asm("x0") = VMWARE_HYPERVISOR_MAGIC; + register u64 x1 asm("x1") = in1; + register u64 x2 asm("x2") = cmd; + register u64 x3 asm("x3") = in3 | VMWARE_HYPERVISOR_PORT; + register u64 x4 asm("x4"); + register u64 x5 asm("x5"); + register u64 x7 asm("x7") = ((u64)X86_IO_MAGIC << 32) | + X86_IO_W7_WITH | + X86_IO_W7_DIR | + (2 << X86_IO_W7_SIZE_SHIFT); + + asm_inline volatile ( + "mrs xzr, mdccsr_el0; " + : "+r" (x0), "+r" (x2), "+r" (x3), "=r" (x4), "=r" (x5) + : "r" (x1), "r" (x7) + : "memory"); + + *out2 = x2; + *out3 = x3; + *out4 = x4; + *out5 = x5; + return x0; +} + +static inline +unsigned long vmware_hypercall7(unsigned long cmd, unsigned long in1, + unsigned long in3, unsigned long in4, + unsigned long in5, u32 *out1, + u32 *out2, u32 *out3) +{ + register u64 x0 asm("x0") = VMWARE_HYPERVISOR_MAGIC; + register u64 x1 asm("x1") = in1; + register u64 x2 asm("x2") = cmd; + register u64 x3 asm("x3") = in3 | VMWARE_HYPERVISOR_PORT; + register u64 x4 asm("x4") = in4; + register u64 x5 asm("x5") = in5; + register u64 x7 asm("x7") = ((u64)X86_IO_MAGIC << 32) | + X86_IO_W7_WITH | + X86_IO_W7_DIR | + (2 << X86_IO_W7_SIZE_SHIFT); + + asm_inline volatile ( + "mrs xzr, mdccsr_el0; " + : "+r" (x0), "+r" (x1), "+r" (x2), "+r" (x3) + : "r" (x4), "r" (x5), "r" (x7) + : "memory"); + + *out1 = x1; + *out2 = x2; + *out3 = x3; + return x0; +} + +static inline +unsigned long vmware_hypercall_hb(unsigned long cmd, unsigned long in2, + unsigned long in3, unsigned long in4, + unsigned long in5, unsigned long in6, + u32 *out1, int dir) +{ + register u64 x0 asm("x0") = VMWARE_HYPERVISOR_MAGIC; register u64 x1 asm("x1") = cmd; - register u64 x2 asm("x2") = in_ecx; - register u64 x3 asm("x3") = flags | VMWARE_HYPERVISOR_PORT_HB; - register u64 x4 asm("x4") = in_si; - register u64 x5 asm("x5") = in_di; - register u64 x6 asm("x6") = bp; + register u64 x2 asm("x2") = in2; + register u64 x3 asm("x3") = in3 | VMWARE_HYPERVISOR_PORT_HB; + register u64 x4 asm("x4") = in4; + register u64 x5 asm("x5") = in5; + register u64 x6 asm("x6") = in6; register u64 x7 asm("x7") = ((u64)X86_IO_MAGIC << 32) | X86_IO_W7_STR | X86_IO_W7_WITH | - w7dir; - - asm volatile("mrs xzr, mdccsr_el0 \n\t" - : "+r"(x0), "+r"(x1), "+r"(x2), - "+r"(x3), "+r"(x4), "+r"(x5) - : "r"(x6), "r"(x7) - :); - *eax = x0; - *ebx = x1; - *ecx = x2; - *edx = x3; - *si = x4; - *di = x5; -} + dir; -#define VMW_PORT(cmd, in_ebx, in_si, in_di, flags, magic, eax, ebx, ecx, edx, \ - si, di) \ - vmw_port(cmd, in_ebx, in_si, in_di, flags, magic, &eax, &ebx, &ecx, \ - &edx, &si, &di) + asm_inline volatile ( + "mrs xzr, mdccsr_el0; " + : "+r" (x0), "+r" (x1) + : "r" (x2), "r" (x3), "r" (x4), "r" (x5), + "r" (x6), "r" (x7) + : "memory"); -#define VMW_PORT_HB_OUT(cmd, in_ecx, in_si, in_di, flags, magic, bp, eax, ebx, \ - ecx, edx, si, di) \ - vmw_port_hb(cmd, in_ecx, in_si, in_di, flags, magic, bp, \ - 0, &eax, &ebx, &ecx, &edx, &si, &di) + *out1 = x1; + return x0; +} -#define VMW_PORT_HB_IN(cmd, in_ecx, in_si, in_di, flags, magic, bp, eax, ebx, \ - ecx, edx, si, di) \ - vmw_port_hb(cmd, in_ecx, in_si, in_di, flags, magic, bp, \ - X86_IO_W7_DIR, &eax, &ebx, &ecx, &edx, &si, &di) +static inline +unsigned long vmware_hypercall_hb_out(unsigned long cmd, unsigned long in2, + unsigned long in3, unsigned long in4, + unsigned long in5, unsigned long in6, + u32 *out1) +{ + return vmware_hypercall_hb(cmd, in2, in3, in4, in5, in6, out1, 0); +} +static inline +unsigned long vmware_hypercall_hb_in(unsigned long cmd, unsigned long in2, + unsigned long in3, unsigned long in4, + unsigned long in5, unsigned long in6, + u32 *out1) +{ + return vmware_hypercall_hb(cmd, in2, in3, in4, in5, in6, out1, + X86_IO_W7_DIR); +} #endif #endif /* _VMWGFX_MSG_ARM64_H */ diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_msg_x86.h b/drivers/gpu/drm/vmwgfx/vmwgfx_msg_x86.h index 23899d743a90..13304d34cc6e 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_msg_x86.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_msg_x86.h @@ -37,191 +37,6 @@ #include <asm/vmware.h> -/** - * Hypervisor-specific bi-directional communication channel. Should never - * execute on bare metal hardware. The caller must make sure to check for - * supported hypervisor before using these macros. - * - * The last two parameters are both input and output and must be initialized. - * - * @cmd: [IN] Message Cmd - * @in_ebx: [IN] Message Len, through EBX - * @in_si: [IN] Input argument through SI, set to 0 if not used - * @in_di: [IN] Input argument through DI, set ot 0 if not used - * @flags: [IN] hypercall flags + [channel id] - * @magic: [IN] hypervisor magic value - * @eax: [OUT] value of EAX register - * @ebx: [OUT] e.g. status from an HB message status command - * @ecx: [OUT] e.g. status from a non-HB message status command - * @edx: [OUT] e.g. channel id - * @si: [OUT] - * @di: [OUT] - */ -#define VMW_PORT(cmd, in_ebx, in_si, in_di, \ - flags, magic, \ - eax, ebx, ecx, edx, si, di) \ -({ \ - asm volatile (VMWARE_HYPERCALL : \ - "=a"(eax), \ - "=b"(ebx), \ - "=c"(ecx), \ - "=d"(edx), \ - "=S"(si), \ - "=D"(di) : \ - "a"(magic), \ - "b"(in_ebx), \ - "c"(cmd), \ - "d"(flags), \ - "S"(in_si), \ - "D"(in_di) : \ - "memory"); \ -}) - - -/** - * Hypervisor-specific bi-directional communication channel. Should never - * execute on bare metal hardware. The caller must make sure to check for - * supported hypervisor before using these macros. - * - * The last 3 parameters are both input and output and must be initialized. - * - * @cmd: [IN] Message Cmd - * @in_ecx: [IN] Message Len, through ECX - * @in_si: [IN] Input argument through SI, set to 0 if not used - * @in_di: [IN] Input argument through DI, set to 0 if not used - * @flags: [IN] hypercall flags + [channel id] - * @magic: [IN] hypervisor magic value - * @bp: [IN] - * @eax: [OUT] value of EAX register - * @ebx: [OUT] e.g. status from an HB message status command - * @ecx: [OUT] e.g. status from a non-HB message status command - * @edx: [OUT] e.g. channel id - * @si: [OUT] - * @di: [OUT] - */ -#ifdef __x86_64__ - -#define VMW_PORT_HB_OUT(cmd, in_ecx, in_si, in_di, \ - flags, magic, bp, \ - eax, ebx, ecx, edx, si, di) \ -({ \ - asm volatile ( \ - UNWIND_HINT_SAVE \ - "push %%rbp;" \ - UNWIND_HINT_UNDEFINED \ - "mov %12, %%rbp;" \ - VMWARE_HYPERCALL_HB_OUT \ - "pop %%rbp;" \ - UNWIND_HINT_RESTORE : \ - "=a"(eax), \ - "=b"(ebx), \ - "=c"(ecx), \ - "=d"(edx), \ - "=S"(si), \ - "=D"(di) : \ - "a"(magic), \ - "b"(cmd), \ - "c"(in_ecx), \ - "d"(flags), \ - "S"(in_si), \ - "D"(in_di), \ - "r"(bp) : \ - "memory", "cc"); \ -}) - - -#define VMW_PORT_HB_IN(cmd, in_ecx, in_si, in_di, \ - flags, magic, bp, \ - eax, ebx, ecx, edx, si, di) \ -({ \ - asm volatile ( \ - UNWIND_HINT_SAVE \ - "push %%rbp;" \ - UNWIND_HINT_UNDEFINED \ - "mov %12, %%rbp;" \ - VMWARE_HYPERCALL_HB_IN \ - "pop %%rbp;" \ - UNWIND_HINT_RESTORE : \ - "=a"(eax), \ - "=b"(ebx), \ - "=c"(ecx), \ - "=d"(edx), \ - "=S"(si), \ - "=D"(di) : \ - "a"(magic), \ - "b"(cmd), \ - "c"(in_ecx), \ - "d"(flags), \ - "S"(in_si), \ - "D"(in_di), \ - "r"(bp) : \ - "memory", "cc"); \ -}) - -#elif defined(__i386__) - -/* - * In the 32-bit version of this macro, we store bp in a memory location - * because we've ran out of registers. - * Now we can't reference that memory location while we've modified - * %esp or %ebp, so we first push it on the stack, just before we push - * %ebp, and then when we need it we read it from the stack where we - * just pushed it. - */ -#define VMW_PORT_HB_OUT(cmd, in_ecx, in_si, in_di, \ - flags, magic, bp, \ - eax, ebx, ecx, edx, si, di) \ -({ \ - asm volatile ("push %12;" \ - "push %%ebp;" \ - "mov 0x04(%%esp), %%ebp;" \ - VMWARE_HYPERCALL_HB_OUT \ - "pop %%ebp;" \ - "add $0x04, %%esp;" : \ - "=a"(eax), \ - "=b"(ebx), \ - "=c"(ecx), \ - "=d"(edx), \ - "=S"(si), \ - "=D"(di) : \ - "a"(magic), \ - "b"(cmd), \ - "c"(in_ecx), \ - "d"(flags), \ - "S"(in_si), \ - "D"(in_di), \ - "m"(bp) : \ - "memory", "cc"); \ -}) - - -#define VMW_PORT_HB_IN(cmd, in_ecx, in_si, in_di, \ - flags, magic, bp, \ - eax, ebx, ecx, edx, si, di) \ -({ \ - asm volatile ("push %12;" \ - "push %%ebp;" \ - "mov 0x04(%%esp), %%ebp;" \ - VMWARE_HYPERCALL_HB_IN \ - "pop %%ebp;" \ - "add $0x04, %%esp;" : \ - "=a"(eax), \ - "=b"(ebx), \ - "=c"(ecx), \ - "=d"(edx), \ - "=S"(si), \ - "=D"(di) : \ - "a"(magic), \ - "b"(cmd), \ - "c"(in_ecx), \ - "d"(flags), \ - "S"(in_si), \ - "D"(in_di), \ - "m"(bp) : \ - "memory", "cc"); \ -}) -#endif /* defined(__i386__) */ - #endif /* defined(__i386__) || defined(__x86_64__) */ #endif /* _VMWGFX_MSG_X86_H */ |