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hw/misc/iotkit-sysctl: Remove is_sse200 flag 

Remove the is_sse200 flag in favour of just directly testing the new
sse_version field.

Since some of these registers exist in the SSE-300 but some do not or
have different behaviour, we expand out the if() statements in the
read and write functions into switch()es, so we have an easy place to
put SSE-300 specific behaviour.

(Until we do add the SSE-300 behaviour, the thing preventing us
reaching the "unreachable" default cases is that armsse.c doesn't
yet pass us an ARMSSE_SSE300 version.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210219144617.4782-7-peter.maydell@linaro.org
master
Peter Maydell 2021-02-19 14:45:39 +00:00
parent 419a7f8075
commit 1cbd6fe4b8
2 changed files with 187 additions and 71 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

256
hw/misc/iotkit-sysctl.c
View File

@ -101,28 +101,48 @@ static uint64_t iotkit_sysctl_read(void *opaque, hwaddr offset,
r = s->secure_debug;
break;
case A_SCSECCTRL:
if (!s->is_sse200) {
switch (s->sse_version) {
case ARMSSE_IOTKIT:
goto bad_offset;
case ARMSSE_SSE200:
r = s->scsecctrl;
break;
default:
g_assert_not_reached();
}
r = s->scsecctrl;
break;
case A_FCLK_DIV:
if (!s->is_sse200) {
switch (s->sse_version) {
case ARMSSE_IOTKIT:
goto bad_offset;
case ARMSSE_SSE200:
r = s->fclk_div;
break;
default:
g_assert_not_reached();
}
r = s->fclk_div;
break;
case A_SYSCLK_DIV:
if (!s->is_sse200) {
switch (s->sse_version) {
case ARMSSE_IOTKIT:
goto bad_offset;
case ARMSSE_SSE200:
r = s->sysclk_div;
break;
default:
g_assert_not_reached();
}
r = s->sysclk_div;
break;
case A_CLOCK_FORCE:
if (!s->is_sse200) {
switch (s->sse_version) {
case ARMSSE_IOTKIT:
goto bad_offset;
case ARMSSE_SSE200:
r = s->clock_force;
break;
default:
g_assert_not_reached();
}
r = s->clock_force;
break;
case A_RESET_SYNDROME:
r = s->reset_syndrome;
@ -137,60 +157,100 @@ static uint64_t iotkit_sysctl_read(void *opaque, hwaddr offset,
r = s->initsvtor0;
break;
case A_INITSVTOR1:
if (!s->is_sse200) {
switch (s->sse_version) {
case ARMSSE_IOTKIT:
goto bad_offset;
case ARMSSE_SSE200:
r = s->initsvtor1;
break;
default:
g_assert_not_reached();
}
r = s->initsvtor1;
break;
case A_CPUWAIT:
r = s->cpuwait;
break;
case A_NMI_ENABLE:
/* In IoTKit this is named BUSWAIT but is marked reserved, R/O, zero */
if (!s->is_sse200) {
switch (s->sse_version) {
case ARMSSE_IOTKIT:
/* In IoTKit this is named BUSWAIT but marked reserved, R/O, zero */
r = 0;
break;
case ARMSSE_SSE200:
r = s->nmi_enable;
break;
default:
g_assert_not_reached();
}
r = s->nmi_enable;
break;
case A_WICCTRL:
r = s->wicctrl;
break;
case A_EWCTRL:
if (!s->is_sse200) {
switch (s->sse_version) {
case ARMSSE_IOTKIT:
goto bad_offset;
case ARMSSE_SSE200:
r = s->ewctrl;
break;
default:
g_assert_not_reached();
}
r = s->ewctrl;
break;
case A_PDCM_PD_SYS_SENSE:
if (!s->is_sse200) {
switch (s->sse_version) {
case ARMSSE_IOTKIT:
goto bad_offset;
case ARMSSE_SSE200:
r = s->pdcm_pd_sys_sense;
break;
default:
g_assert_not_reached();
}
r = s->pdcm_pd_sys_sense;
break;
case A_PDCM_PD_SRAM0_SENSE:
if (!s->is_sse200) {
switch (s->sse_version) {
case ARMSSE_IOTKIT:
goto bad_offset;
case ARMSSE_SSE200:
r = s->pdcm_pd_sram0_sense;
break;
default:
g_assert_not_reached();
}
r = s->pdcm_pd_sram0_sense;
break;
case A_PDCM_PD_SRAM1_SENSE:
if (!s->is_sse200) {
switch (s->sse_version) {
case ARMSSE_IOTKIT:
goto bad_offset;
case ARMSSE_SSE200:
r = s->pdcm_pd_sram1_sense;
break;
default:
g_assert_not_reached();
}
r = s->pdcm_pd_sram1_sense;
break;
case A_PDCM_PD_SRAM2_SENSE:
if (!s->is_sse200) {
switch (s->sse_version) {
case ARMSSE_IOTKIT:
goto bad_offset;
case ARMSSE_SSE200:
r = s->pdcm_pd_sram2_sense;
break;
default:
g_assert_not_reached();
}
r = s->pdcm_pd_sram2_sense;
break;
case A_PDCM_PD_SRAM3_SENSE:
if (!s->is_sse200) {
switch (s->sse_version) {
case ARMSSE_IOTKIT:
goto bad_offset;
case ARMSSE_SSE200:
r = s->pdcm_pd_sram3_sense;
break;
default:
g_assert_not_reached();
}
r = s->pdcm_pd_sram3_sense;
break;
case A_PID4 ... A_CID3:
r = sysctl_id[(offset - A_PID4) / 4];
@ -284,94 +344,154 @@ static void iotkit_sysctl_write(void *opaque, hwaddr offset,
}
break;
case A_SCSECCTRL:
if (!s->is_sse200) {
switch (s->sse_version) {
case ARMSSE_IOTKIT:
goto bad_offset;
case ARMSSE_SSE200:
qemu_log_mask(LOG_UNIMP, "IoTKit SysCtl SCSECCTRL unimplemented\n");
s->scsecctrl = value;
break;
default:
g_assert_not_reached();
}
qemu_log_mask(LOG_UNIMP, "IoTKit SysCtl SCSECCTRL unimplemented\n");
s->scsecctrl = value;
break;
case A_FCLK_DIV:
if (!s->is_sse200) {
switch (s->sse_version) {
case ARMSSE_IOTKIT:
goto bad_offset;
case ARMSSE_SSE200:
qemu_log_mask(LOG_UNIMP, "IoTKit SysCtl FCLK_DIV unimplemented\n");
s->fclk_div = value;
break;
default:
g_assert_not_reached();
}
qemu_log_mask(LOG_UNIMP, "IoTKit SysCtl FCLK_DIV unimplemented\n");
s->fclk_div = value;
break;
case A_SYSCLK_DIV:
if (!s->is_sse200) {
switch (s->sse_version) {
case ARMSSE_IOTKIT:
goto bad_offset;
case ARMSSE_SSE200:
qemu_log_mask(LOG_UNIMP, "IoTKit SysCtl SYSCLK_DIV unimplemented\n");
s->sysclk_div = value;
break;
default:
g_assert_not_reached();
}
qemu_log_mask(LOG_UNIMP, "IoTKit SysCtl SYSCLK_DIV unimplemented\n");
s->sysclk_div = value;
break;
case A_CLOCK_FORCE:
if (!s->is_sse200) {
switch (s->sse_version) {
case ARMSSE_IOTKIT:
goto bad_offset;
case ARMSSE_SSE200:
qemu_log_mask(LOG_UNIMP, "IoTKit SysCtl CLOCK_FORCE unimplemented\n");
s->clock_force = value;
break;
default:
g_assert_not_reached();
}
qemu_log_mask(LOG_UNIMP, "IoTKit SysCtl CLOCK_FORCE unimplemented\n");
s->clock_force = value;
break;
case A_INITSVTOR1:
if (!s->is_sse200) {
switch (s->sse_version) {
case ARMSSE_IOTKIT:
goto bad_offset;
case ARMSSE_SSE200:
s->initsvtor1 = value;
set_init_vtor(1, s->initsvtor1);
break;
default:
g_assert_not_reached();
}
s->initsvtor1 = value;
set_init_vtor(1, s->initsvtor1);
break;
case A_EWCTRL:
if (!s->is_sse200) {
switch (s->sse_version) {
case ARMSSE_IOTKIT:
goto bad_offset;
case ARMSSE_SSE200:
qemu_log_mask(LOG_UNIMP, "IoTKit SysCtl EWCTRL unimplemented\n");
s->ewctrl = value;
break;
default:
g_assert_not_reached();
}
qemu_log_mask(LOG_UNIMP, "IoTKit SysCtl EWCTRL unimplemented\n");
s->ewctrl = value;
break;
case A_PDCM_PD_SYS_SENSE:
if (!s->is_sse200) {
switch (s->sse_version) {
case ARMSSE_IOTKIT:
goto bad_offset;
case ARMSSE_SSE200:
qemu_log_mask(LOG_UNIMP,
"IoTKit SysCtl PDCM_PD_SYS_SENSE unimplemented\n");
s->pdcm_pd_sys_sense = value;
break;
default:
g_assert_not_reached();
}
qemu_log_mask(LOG_UNIMP,
"IoTKit SysCtl PDCM_PD_SYS_SENSE unimplemented\n");
s->pdcm_pd_sys_sense = value;
break;
case A_PDCM_PD_SRAM0_SENSE:
if (!s->is_sse200) {
switch (s->sse_version) {
case ARMSSE_IOTKIT:
goto bad_offset;
case ARMSSE_SSE200:
qemu_log_mask(LOG_UNIMP,
"IoTKit SysCtl PDCM_PD_SRAM0_SENSE unimplemented\n");
s->pdcm_pd_sram0_sense = value;
break;
default:
g_assert_not_reached();
}
qemu_log_mask(LOG_UNIMP,
"IoTKit SysCtl PDCM_PD_SRAM0_SENSE unimplemented\n");
s->pdcm_pd_sram0_sense = value;
break;
case A_PDCM_PD_SRAM1_SENSE:
if (!s->is_sse200) {
switch (s->sse_version) {
case ARMSSE_IOTKIT:
goto bad_offset;
case ARMSSE_SSE200:
qemu_log_mask(LOG_UNIMP,
"IoTKit SysCtl PDCM_PD_SRAM1_SENSE unimplemented\n");
s->pdcm_pd_sram1_sense = value;
break;
default:
g_assert_not_reached();
}
qemu_log_mask(LOG_UNIMP,
"IoTKit SysCtl PDCM_PD_SRAM1_SENSE unimplemented\n");
s->pdcm_pd_sram1_sense = value;
break;
case A_PDCM_PD_SRAM2_SENSE:
if (!s->is_sse200) {
switch (s->sse_version) {
case ARMSSE_IOTKIT:
goto bad_offset;
case ARMSSE_SSE200:
qemu_log_mask(LOG_UNIMP,
"IoTKit SysCtl PDCM_PD_SRAM2_SENSE unimplemented\n");
s->pdcm_pd_sram2_sense = value;
break;
default:
g_assert_not_reached();
}
qemu_log_mask(LOG_UNIMP,
"IoTKit SysCtl PDCM_PD_SRAM2_SENSE unimplemented\n");
s->pdcm_pd_sram2_sense = value;
break;
case A_PDCM_PD_SRAM3_SENSE:
if (!s->is_sse200) {
switch (s->sse_version) {
case ARMSSE_IOTKIT:
goto bad_offset;
case ARMSSE_SSE200:
qemu_log_mask(LOG_UNIMP,
"IoTKit SysCtl PDCM_PD_SRAM3_SENSE unimplemented\n");
s->pdcm_pd_sram3_sense = value;
break;
default:
g_assert_not_reached();
}
qemu_log_mask(LOG_UNIMP,
"IoTKit SysCtl PDCM_PD_SRAM3_SENSE unimplemented\n");
s->pdcm_pd_sram3_sense = value;
break;
case A_NMI_ENABLE:
/* In IoTKit this is BUSWAIT: reserved, R/O, zero */
if (!s->is_sse200) {
switch (s->sse_version) {
case ARMSSE_IOTKIT:
goto ro_offset;
case ARMSSE_SSE200:
qemu_log_mask(LOG_UNIMP, "IoTKit SysCtl NMI_ENABLE unimplemented\n");
s->nmi_enable = value;
break;
default:
g_assert_not_reached();
}
qemu_log_mask(LOG_UNIMP, "IoTKit SysCtl NMI_ENABLE unimplemented\n");
s->nmi_enable = value;
break;
case A_SECDBGSTAT:
case A_PID4 ... A_CID3:
@ -443,15 +563,13 @@ static void iotkit_sysctl_realize(DeviceState *dev, Error **errp)
error_setg(errp, "invalid sse-version value %d", s->sse_version);
return;
}
s->is_sse200 = s->sse_version == ARMSSE_SSE200;
}
static bool sse200_needed(void *opaque)
{
IoTKitSysCtl *s = IOTKIT_SYSCTL(opaque);
return s->is_sse200;
return s->sse_version == ARMSSE_SSE200;
}
static const VMStateDescription iotkit_sysctl_sse200_vmstate = {

2
include/hw/misc/iotkit-sysctl.h
View File

@ -64,8 +64,6 @@ struct IoTKitSysCtl {
uint32_t cpuwait_rst;
uint32_t initsvtor0_rst;
uint32_t initsvtor1_rst;
bool is_sse200;
};
#endif