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rtkit: Support usage with SRAM

Browse source 
Will be used by SMC.

Signed-off-by: Janne Grunau <j@jannau.net>
This commit is contained in:
Janne Grunau 2023-09-03 15:17:22 +02:00 committed by Hector Martin
parent 41e4e25eed
commit b65c7d1edc
4 changed files with 22 additions and 6 deletions
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2
src/dcp.c
View file

@ -49,7 +49,7 @@ dcp_dev_t *dcp_init(const char *dcp_path, const char *dcp_dart_path, const char
goto out_iovad;
}
dcp->rtkit = rtkit_init("dcp", dcp->asc, dcp->dart_dcp, dcp->iovad_dcp, NULL);
dcp->rtkit = rtkit_init("dcp", dcp->asc, dcp->dart_dcp, dcp->iovad_dcp, NULL, false);
if (!dcp->rtkit) {
printf("dcp: failed to initialize RTKit\n");
goto out_iovad;

4
src/nvme.c
View file

@ -335,7 +335,7 @@ bool nvme_init(void)
if (!nvme_sart)
goto out_asc;
nvme_rtkit = rtkit_init("nvme", nvme_asc, NULL, NULL, nvme_sart);
nvme_rtkit = rtkit_init("nvme", nvme_asc, NULL, NULL, nvme_sart, false);
if (!nvme_rtkit)
goto out_sart;
@ -446,7 +446,7 @@ void nvme_ensure_shutdown(void)
if (!nvme_sart)
goto fail;
nvme_rtkit = rtkit_init("nvme", nvme_asc, NULL, NULL, nvme_sart);
nvme_rtkit = rtkit_init("nvme", nvme_asc, NULL, NULL, nvme_sart, false);
if (!nvme_rtkit)
goto fail;

20
src/rtkit.c
View file

@ -87,6 +87,7 @@ struct rtkit_dev {
dart_dev_t *dart;
iova_domain_t *dart_iovad;
sart_dev_t *sart;
bool sram;
u64 dva_base;
@ -126,7 +127,7 @@ struct crashlog_entry {
};
rtkit_dev_t *rtkit_init(const char *name, asc_dev_t *asc, dart_dev_t *dart,
iova_domain_t *dart_iovad, sart_dev_t *sart)
iova_domain_t *dart_iovad, sart_dev_t *sart, bool sram)
{
if (dart && sart) {
printf("rtkit: Cannot use both SART and DART simultaneously\n");
@ -138,6 +139,11 @@ rtkit_dev_t *rtkit_init(const char *name, asc_dev_t *asc, dart_dev_t *dart,
return NULL;
}
if (sram && (dart || sart)) {
printf("rtkit: cannot use SRAM with DART or SART \n");
return NULL;
}
rtkit_dev_t *rtk = malloc(sizeof(*rtk));
if (!rtk)
return NULL;
@ -153,6 +159,7 @@ rtkit_dev_t *rtkit_init(const char *name, asc_dev_t *asc, dart_dev_t *dart,
rtk->dart = dart;
rtk->dart_iovad = dart_iovad;
rtk->sart = sart;
rtk->sram = sram;
rtk->iop_power = RTKIT_POWER_OFF;
rtk->ap_power = RTKIT_POWER_OFF;
rtk->dva_base = 0;
@ -277,7 +284,16 @@ static bool rtkit_handle_buffer_request(rtkit_dev_t *rtk, struct rtkit_message *
size_t sz = n_4kpages << 12;
u64 addr = FIELD_GET(MSG_BUFFER_REQUEST_IOVA, msg->msg);
if (addr) {
if (rtk->sram) {
if (!addr) {
rtkit_printf("SRAM buffers needs to be provided by the IOP\n");
return false;
}
bfr->dva = addr;
bfr->bfr = (void *)addr;
bfr->sz = sz;
return true;
} else if (addr) {
bfr->dva = addr & ~rtk->dva_base;
bfr->sz = sz;
bfr->bfr = dart_translate(rtk->dart, bfr->dva & IOVA_MASK);

2
src/rtkit.h
View file

@ -23,7 +23,7 @@ struct rtkit_buffer {
};
rtkit_dev_t *rtkit_init(const char *name, asc_dev_t *asc, dart_dev_t *dart,
iova_domain_t *dart_iovad, sart_dev_t *sart);
iova_domain_t *dart_iovad, sart_dev_t *sart, bool sram);
bool rtkit_quiesce(rtkit_dev_t *rtk);
bool rtkit_sleep(rtkit_dev_t *rtk);
void rtkit_free(rtkit_dev_t *rtk);