Merge remote-tracking branch 'remotes/kraxel/tags/pull-cirrus-20170316-1' into staging

[qemu.git] / hw / pci / shpc.c

diff --git a/hw/pci/shpc.c b/hw/pci/shpc.c
index 5fd7f4bbb7fcda404e2c74e28009029a2e61b5ef..42fafac91bfc96174a8fd6c903b2287c3bc8eace 100644 (file)
--- a/hw/pci/shpc.c
+++ b/hw/pci/shpc.c
@@ -1,13 +1,12 @@
+#include "qemu/osdep.h"
+#include "qapi/error.h"
 #include "qemu-common.h"
-#include <strings.h>
-#include <stdint.h>
 #include "qemu/range.h"
 #include "qemu/error-report.h"
 #include "hw/pci/shpc.h"
 #include "hw/pci/pci.h"
 #include "hw/pci/pci_bus.h"
 #include "hw/pci/msi.h"
-#include "qapi/qmp/qerror.h"
 
 /* TODO: model power only and disabled slot states. */
 /* TODO: handle SERR and wakeups */
@@ -61,7 +60,7 @@
 /* Same slot state masks are used for command and status registers */
 #define SHPC_SLOT_STATE_MASK     0x03
 #define SHPC_SLOT_STATE_SHIFT \
-    (ffs(SHPC_SLOT_STATE_MASK) - 1)
+    ctz32(SHPC_SLOT_STATE_MASK)
 
 #define SHPC_STATE_NO       0x0
 #define SHPC_STATE_PWRONLY  0x1
@@ -70,10 +69,10 @@
 
 #define SHPC_SLOT_PWR_LED_MASK   0xC
 #define SHPC_SLOT_PWR_LED_SHIFT \
-    (ffs(SHPC_SLOT_PWR_LED_MASK) - 1)
+    ctz32(SHPC_SLOT_PWR_LED_MASK)
 #define SHPC_SLOT_ATTN_LED_MASK  0x30
 #define SHPC_SLOT_ATTN_LED_SHIFT \
-    (ffs(SHPC_SLOT_ATTN_LED_MASK) - 1)
+    ctz32(SHPC_SLOT_ATTN_LED_MASK)
 
 #define SHPC_LED_NO     0x0
 #define SHPC_LED_ON     0x1
@@ -136,7 +135,7 @@ static int roundup_pow_of_two(int x)
 static uint16_t shpc_get_status(SHPCDevice *shpc, int slot, uint16_t msk)
 {
     uint8_t *status = shpc->config + SHPC_SLOT_STATUS(slot);
-    return (pci_get_word(status) & msk) >> (ffs(msk) - 1);
+    return (pci_get_word(status) & msk) >> ctz32(msk);
 }
 
 static void shpc_set_status(SHPCDevice *shpc,
@@ -144,7 +143,7 @@ static void shpc_set_status(SHPCDevice *shpc,
 {
     uint8_t *status = shpc->config + SHPC_SLOT_STATUS(slot);
     pci_word_test_and_clear_mask(status, msk);
-    pci_word_test_and_set_mask(status, value << (ffs(msk) - 1));
+    pci_word_test_and_set_mask(status, value << ctz32(msk));
 }
 
 static void shpc_interrupt_update(PCIDevice *d)
@@ -159,7 +158,7 @@ static void shpc_interrupt_update(PCIDevice *d)
     for (slot = 0; slot < shpc->nslots; ++slot) {
         uint8_t event = shpc->config[SHPC_SLOT_EVENT_LATCH(slot)];
         uint8_t disable = shpc->config[SHPC_SLOT_EVENT_SERR_INT_DIS(d, slot)];
-        uint32_t mask = 1 << SHPC_IDX_TO_LOGICAL(slot);
+        uint32_t mask = 1U << SHPC_IDX_TO_LOGICAL(slot);
         if (event & ~disable) {
             int_locator |= mask;
         }
@@ -696,13 +695,16 @@ void shpc_cap_write_config(PCIDevice *d, uint32_t addr, uint32_t val, int l)
     shpc_cap_update_dword(d);
 }
 
-static void shpc_save(QEMUFile *f, void *pv, size_t size)
+static int shpc_save(QEMUFile *f, void *pv, size_t size, VMStateField *field,
+                     QJSON *vmdesc)
 {
     PCIDevice *d = container_of(pv, PCIDevice, shpc);
     qemu_put_buffer(f, d->shpc->config, SHPC_SIZEOF(d));
+
+    return 0;
 }
 
-static int shpc_load(QEMUFile *f, void *pv, size_t size)
+static int shpc_load(QEMUFile *f, void *pv, size_t size, VMStateField *field)
 {
     PCIDevice *d = container_of(pv, PCIDevice, shpc);
     int ret = qemu_get_buffer(f, d->shpc->config, SHPC_SIZEOF(d));