From: Greg Kurz <groug@kaod.org>
To: David Gibson <david@gibson.dropbear.id.au>
Cc: "Jason Wang" <jasowang@redhat.com>,
"Riku Voipio" <riku.voipio@iki.fi>,
qemu-devel@nongnu.org, "Laurent Vivier" <laurent@vivier.eu>,
qemu-ppc@nongnu.org, clg@kaod.org,
"Marc-André Lureau" <marcandre.lureau@redhat.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
philmd@redhat.com
Subject: Re: [PATCH v2 31/33] spapr: Remove SpaprIrq::nr_msis
Date: Fri, 27 Sep 2019 17:17:45 +0200 [thread overview]
Message-ID: <20190927171745.52f69866@bahia.lan> (raw)
In-Reply-To: <20190927055028.11493-32-david@gibson.dropbear.id.au>
On Fri, 27 Sep 2019 15:50:26 +1000
David Gibson <david@gibson.dropbear.id.au> wrote:
> The nr_msis value we use here has to line up with whether we're using
> legacy or modern irq allocation. Therefore it's safer to derive it based
> on legacy_irq_allocation rather than having SpaprIrq contain a canned
> value.
>
> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
> ---
Reviewed-by: Greg Kurz <groug@kaod.org>
> hw/ppc/spapr.c | 5 ++---
> hw/ppc/spapr_irq.c | 26 +++++++++++++++++---------
> hw/ppc/spapr_pci.c | 7 ++++---
> include/hw/pci-host/spapr.h | 4 ++--
> include/hw/ppc/spapr_irq.h | 5 +----
> 5 files changed, 26 insertions(+), 21 deletions(-)
>
> diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
> index f55d227cd3..34b693beba 100644
> --- a/hw/ppc/spapr.c
> +++ b/hw/ppc/spapr.c
> @@ -1345,7 +1345,7 @@ static void *spapr_build_fdt(SpaprMachineState *spapr)
> }
>
> QLIST_FOREACH(phb, &spapr->phbs, list) {
> - ret = spapr_dt_phb(phb, PHANDLE_INTC, fdt, spapr->irq->nr_msis, NULL);
> + ret = spapr_dt_phb(spapr, phb, PHANDLE_INTC, fdt, NULL);
> if (ret < 0) {
> error_report("couldn't setup PCI devices in fdt");
> exit(1);
> @@ -3980,8 +3980,7 @@ int spapr_phb_dt_populate(SpaprDrc *drc, SpaprMachineState *spapr,
> return -1;
> }
>
> - if (spapr_dt_phb(sphb, intc_phandle, fdt, spapr->irq->nr_msis,
> - fdt_start_offset)) {
> + if (spapr_dt_phb(spapr, sphb, intc_phandle, fdt, fdt_start_offset)) {
> error_setg(errp, "unable to create FDT node for PHB %d", sphb->index);
> return -1;
> }
> diff --git a/hw/ppc/spapr_irq.c b/hw/ppc/spapr_irq.c
> index 040384b0fe..799755c811 100644
> --- a/hw/ppc/spapr_irq.c
> +++ b/hw/ppc/spapr_irq.c
> @@ -29,9 +29,14 @@ static const TypeInfo spapr_intc_info = {
> .class_size = sizeof(SpaprInterruptControllerClass),
> };
>
> -void spapr_irq_msi_init(SpaprMachineState *spapr, uint32_t nr_msis)
> +static void spapr_irq_msi_init(SpaprMachineState *spapr)
> {
> - spapr->irq_map_nr = nr_msis;
> + if (SPAPR_MACHINE_GET_CLASS(spapr)->legacy_irq_allocation) {
> + /* Legacy mode doesn't use this allocater */
> + return;
> + }
> +
> + spapr->irq_map_nr = spapr_irq_nr_msis(spapr);
> spapr->irq_map = bitmap_new(spapr->irq_map_nr);
> }
>
> @@ -102,7 +107,6 @@ int spapr_irq_init_kvm(int (*fn)(SpaprInterruptController *, Error **),
>
> SpaprIrq spapr_irq_xics = {
> .nr_xirqs = SPAPR_NR_XIRQS,
> - .nr_msis = SPAPR_NR_MSIS,
> .xics = true,
> .xive = false,
> };
> @@ -113,7 +117,6 @@ SpaprIrq spapr_irq_xics = {
>
> SpaprIrq spapr_irq_xive = {
> .nr_xirqs = SPAPR_NR_XIRQS,
> - .nr_msis = SPAPR_NR_MSIS,
> .xics = false,
> .xive = true,
> };
> @@ -132,7 +135,6 @@ SpaprIrq spapr_irq_xive = {
> */
> SpaprIrq spapr_irq_dual = {
> .nr_xirqs = SPAPR_NR_XIRQS,
> - .nr_msis = SPAPR_NR_MSIS,
> .xics = true,
> .xive = true,
> };
> @@ -245,6 +247,15 @@ void spapr_irq_dt(SpaprMachineState *spapr, uint32_t nr_servers,
> sicc->dt(spapr->active_intc, nr_servers, fdt, phandle);
> }
>
> +uint32_t spapr_irq_nr_msis(SpaprMachineState *spapr)
> +{
> + if (SPAPR_MACHINE_GET_CLASS(spapr)->legacy_irq_allocation) {
> + return spapr->irq->nr_xirqs;
> + } else {
> + return SPAPR_XIRQ_BASE + spapr->irq->nr_xirqs - SPAPR_IRQ_MSI;
> + }
> +}
> +
> void spapr_irq_init(SpaprMachineState *spapr, Error **errp)
> {
> MachineState *machine = MACHINE(spapr);
> @@ -267,9 +278,7 @@ void spapr_irq_init(SpaprMachineState *spapr, Error **errp)
> }
>
> /* Initialize the MSI IRQ allocator. */
> - if (!SPAPR_MACHINE_GET_CLASS(spapr)->legacy_irq_allocation) {
> - spapr_irq_msi_init(spapr, spapr->irq->nr_msis);
> - }
> + spapr_irq_msi_init(spapr);
>
> if (spapr->irq->xics) {
> Object *obj;
> @@ -558,7 +567,6 @@ int spapr_irq_find(SpaprMachineState *spapr, int num, bool align, Error **errp)
>
> SpaprIrq spapr_irq_xics_legacy = {
> .nr_xirqs = SPAPR_IRQ_XICS_LEGACY_NR_XIRQS,
> - .nr_msis = SPAPR_IRQ_XICS_LEGACY_NR_XIRQS,
> .xics = true,
> .xive = false,
> };
> diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
> index 6934d506a7..8ed06e5964 100644
> --- a/hw/ppc/spapr_pci.c
> +++ b/hw/ppc/spapr_pci.c
> @@ -2305,8 +2305,8 @@ static void spapr_phb_pci_enumerate(SpaprPhbState *phb)
>
> }
>
> -int spapr_dt_phb(SpaprPhbState *phb, uint32_t intc_phandle, void *fdt,
> - uint32_t nr_msis, int *node_offset)
> +int spapr_dt_phb(SpaprMachineState *spapr, SpaprPhbState *phb,
> + uint32_t intc_phandle, void *fdt, int *node_offset)
> {
> int bus_off, i, j, ret;
> uint32_t bus_range[] = { cpu_to_be32(0), cpu_to_be32(0xff) };
> @@ -2371,7 +2371,8 @@ int spapr_dt_phb(SpaprPhbState *phb, uint32_t intc_phandle, void *fdt,
> _FDT(fdt_setprop(fdt, bus_off, "ranges", &ranges, sizeof_ranges));
> _FDT(fdt_setprop(fdt, bus_off, "reg", &bus_reg, sizeof(bus_reg)));
> _FDT(fdt_setprop_cell(fdt, bus_off, "ibm,pci-config-space-type", 0x1));
> - _FDT(fdt_setprop_cell(fdt, bus_off, "ibm,pe-total-#msi", nr_msis));
> + _FDT(fdt_setprop_cell(fdt, bus_off, "ibm,pe-total-#msi",
> + spapr_irq_nr_msis(spapr)));
>
> /* Dynamic DMA window */
> if (phb->ddw_enabled) {
> diff --git a/include/hw/pci-host/spapr.h b/include/hw/pci-host/spapr.h
> index 23506f05d9..8877ff51fb 100644
> --- a/include/hw/pci-host/spapr.h
> +++ b/include/hw/pci-host/spapr.h
> @@ -128,8 +128,8 @@ struct SpaprPhbState {
> #define SPAPR_PCI_NV2ATSD_WIN_SIZE (NVGPU_MAX_NUM * NVGPU_MAX_LINKS * \
> 64 * KiB)
>
> -int spapr_dt_phb(SpaprPhbState *phb, uint32_t intc_phandle, void *fdt,
> - uint32_t nr_msis, int *node_offset);
> +int spapr_dt_phb(SpaprMachineState *spapr, SpaprPhbState *phb,
> + uint32_t intc_phandle, void *fdt, int *node_offset);
>
> void spapr_pci_rtas_init(void);
>
> diff --git a/include/hw/ppc/spapr_irq.h b/include/hw/ppc/spapr_irq.h
> index bc379b0761..308bfcefd1 100644
> --- a/include/hw/ppc/spapr_irq.h
> +++ b/include/hw/ppc/spapr_irq.h
> @@ -27,7 +27,6 @@
> #define SPAPR_IRQ_MSI (SPAPR_XIRQ_BASE + 0x0300)
>
> #define SPAPR_NR_XIRQS 0x1000
> -#define SPAPR_NR_MSIS (SPAPR_XIRQ_BASE + SPAPR_NR_XIRQS - SPAPR_IRQ_MSI)
>
> typedef struct SpaprMachineState SpaprMachineState;
>
> @@ -72,15 +71,13 @@ void spapr_irq_dt(SpaprMachineState *spapr, uint32_t nr_servers,
> void *fdt, uint32_t phandle);
> int spapr_irq_cpu_intc_create(SpaprMachineState *spapr,
> PowerPCCPU *cpu, Error **errp);
> -
> -void spapr_irq_msi_init(SpaprMachineState *spapr, uint32_t nr_msis);
> +uint32_t spapr_irq_nr_msis(SpaprMachineState *spapr);
> int spapr_irq_msi_alloc(SpaprMachineState *spapr, uint32_t num, bool align,
> Error **errp);
> void spapr_irq_msi_free(SpaprMachineState *spapr, int irq, uint32_t num);
>
> typedef struct SpaprIrq {
> uint32_t nr_xirqs;
> - uint32_t nr_msis;
> bool xics;
> bool xive;
> } SpaprIrq;
next prev parent reply other threads:[~2019-09-27 16:15 UTC|newest]
Thread overview: 83+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-27 5:49 [PATCH v2 00/33] spapr: IRQ subsystem cleanup David Gibson
2019-09-27 5:49 ` [PATCH v2 01/33] xics: Minor fixes for XICSFabric interface David Gibson
2019-09-27 7:17 ` Greg Kurz
2019-09-27 5:49 ` [PATCH v2 02/33] xics: Eliminate 'reject', 'resend' and 'eoi' class hooks David Gibson
2019-09-27 5:49 ` [PATCH v2 03/33] xics: Rename misleading ics_simple_*() functions David Gibson
2019-09-27 5:49 ` [PATCH v2 04/33] xics: Eliminate reset hook David Gibson
2019-09-27 7:19 ` Greg Kurz
2019-09-27 5:50 ` [PATCH v2 05/33] xics: Merge TYPE_ICS_BASE and TYPE_ICS_SIMPLE classes David Gibson
2019-09-27 5:50 ` [PATCH v2 06/33] xics: Create sPAPR specific ICS subtype David Gibson
2019-09-27 7:22 ` Greg Kurz
2019-09-27 5:50 ` [PATCH v2 07/33] spapr: Fold spapr_phb_lsi_qirq() into its single caller David Gibson
2019-09-27 5:50 ` [PATCH v2 08/33] spapr: Replace spapr_vio_qirq() helper with spapr_vio_irq_pulse() helper David Gibson
2019-09-27 5:50 ` [PATCH v2 09/33] spapr: Clarify and fix handling of nr_irqs David Gibson
2019-09-27 7:53 ` Greg Kurz
2019-09-27 7:58 ` David Gibson
2019-09-27 5:50 ` [PATCH v2 10/33] spapr: Eliminate nr_irqs parameter to SpaprIrq::init David Gibson
2019-09-27 7:57 ` Greg Kurz
2019-09-27 5:50 ` [PATCH v2 11/33] spapr: Fix indexing of XICS irqs David Gibson
2019-09-27 5:50 ` [PATCH v2 12/33] spapr: Simplify spapr_qirq() handling David Gibson
2019-09-27 5:50 ` [PATCH v2 13/33] spapr: Eliminate SpaprIrq:get_nodename method David Gibson
2019-09-27 5:50 ` [PATCH v2 14/33] spapr: Remove unhelpful tracepoints from spapr_irq_free_xics() David Gibson
2019-09-27 5:50 ` [PATCH v2 15/33] spapr: Handle freeing of multiple irqs in frontend only David Gibson
2019-09-27 5:50 ` [PATCH v2 16/33] spapr, xics, xive: Better use of assert()s on irq claim/free paths David Gibson
2019-09-27 5:50 ` [PATCH v2 17/33] xive: Improve irq claim/free path David Gibson
2019-09-27 8:40 ` Greg Kurz
2019-09-30 1:39 ` David Gibson
2019-09-27 5:50 ` [PATCH v2 18/33] spapr: Use less cryptic representation of which irq backends are supported David Gibson
2019-09-27 5:50 ` [PATCH v2 19/33] spapr: Eliminate SpaprIrq::init hook David Gibson
2019-09-27 5:50 ` [PATCH v2 20/33] spapr, xics, xive: Introduce SpaprInterruptController QOM interface David Gibson
2019-09-27 9:52 ` Greg Kurz
2019-09-30 5:24 ` Cédric Le Goater
2019-09-27 5:50 ` [PATCH v2 21/33] spapr, xics, xive: Move cpu_intc_create from SpaprIrq to SpaprInterruptController David Gibson
2019-09-27 10:16 ` Greg Kurz
2019-09-30 1:49 ` David Gibson
2019-09-30 5:28 ` Cédric Le Goater
2019-09-30 6:14 ` David Gibson
2019-09-30 10:13 ` Cédric Le Goater
2019-10-01 2:31 ` David Gibson
2019-10-01 5:43 ` Cédric Le Goater
2019-10-01 6:47 ` David Gibson
2019-10-01 7:41 ` Cédric Le Goater
2019-10-01 8:11 ` David Gibson
2019-10-01 11:43 ` Cédric Le Goater
2019-10-02 1:11 ` David Gibson
2019-09-30 2:37 ` David Gibson
2019-09-30 5:30 ` Cédric Le Goater
2019-09-27 5:50 ` [PATCH v2 22/33] spapr, xics, xive: Move irq claim and free " David Gibson
2019-09-27 12:16 ` Greg Kurz
2019-09-30 2:39 ` David Gibson
2019-09-30 5:36 ` Cédric Le Goater
2019-09-30 5:33 ` Cédric Le Goater
2019-09-27 5:50 ` [PATCH v2 23/33] spapr: Formalize notion of active interrupt controller David Gibson
2019-09-27 14:16 ` Greg Kurz
2019-09-30 5:39 ` Cédric Le Goater
2019-09-27 5:50 ` [PATCH v2 24/33] spapr, xics, xive: Move set_irq from SpaprIrq to SpaprInterruptController David Gibson
2019-09-27 14:27 ` Greg Kurz
2019-09-30 2:41 ` David Gibson
2019-09-30 7:22 ` Greg Kurz
2019-09-30 8:28 ` David Gibson
2019-09-30 5:48 ` Cédric Le Goater
2019-09-27 5:50 ` [PATCH v2 25/33] spapr, xics, xive: Move print_info " David Gibson
2019-09-27 14:31 ` Greg Kurz
2019-09-27 5:50 ` [PATCH v2 26/33] spapr, xics, xive: Move dt_populate " David Gibson
2019-09-27 14:38 ` Greg Kurz
2019-09-30 5:51 ` Cédric Le Goater
2019-09-27 5:50 ` [PATCH v2 27/33] spapr, xics, xive: Match signatures for XICS and XIVE KVM connect routines David Gibson
2019-09-27 14:49 ` Greg Kurz
2019-09-30 5:52 ` Cédric Le Goater
2019-09-27 5:50 ` [PATCH v2 28/33] spapr: Remove SpaprIrq::init_kvm hook David Gibson
2019-09-27 15:04 ` Greg Kurz
2019-09-30 5:55 ` Cédric Le Goater
2019-09-27 5:50 ` [PATCH v2 29/33] spapr, xics, xive: Move SpaprIrq::reset hook logic into activate/deactivate David Gibson
2019-09-30 6:11 ` Cédric Le Goater
2019-09-30 8:25 ` David Gibson
2019-09-30 19:29 ` Cédric Le Goater
2019-10-01 3:07 ` David Gibson
2019-09-27 5:50 ` [PATCH v2 30/33] spapr, xics, xive: Move SpaprIrq::post_load hook to backends David Gibson
2019-09-27 5:50 ` [PATCH v2 31/33] spapr: Remove SpaprIrq::nr_msis David Gibson
2019-09-27 15:17 ` Greg Kurz [this message]
2019-09-27 5:50 ` [PATCH v2 32/33] spapr: Move SpaprIrq::nr_xirqs to SpaprMachineClass David Gibson
2019-09-27 15:22 ` Greg Kurz
2019-09-30 2:44 ` David Gibson
2019-09-27 5:50 ` [PATCH v2 33/33] spapr: Remove last pieces of SpaprIrq David Gibson
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