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qemu/include/hw/ppc/xive2.h

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ppc/xive2: Introduce a XIVE2 core framework The XIVE2 interrupt controller of the POWER10 processor as the same logic as on POWER9 but its SW interface has been largely reworked. The interrupt controller has a new register interface, different BARs, extra VSDs. These will be described when we add the device model for the baremetal machine. The XIVE internal structures for the EAS, END, NVT have different layouts which is a problem for the current core XIVE framework. To avoid adding too much complexity in the XIVE models, a new XIVE2 core framework is introduced. It duplicates the models which are closely linked to the XIVE internal structures : Xive2Router and Xive2ENDSource and reuses the XiveSource, XivePresenter, XiveTCTX models, as they are more generic. Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-03-02 08:51:38 +03:00
/*
* QEMU PowerPC XIVE2 interrupt controller model (POWER10)
*
* Copyright (c) 2019-2022, IBM Corporation.
*
* This code is licensed under the GPL version 2 or later. See the
* COPYING file in the top-level directory.
*
*/
#ifndef PPC_XIVE2_H
#define PPC_XIVE2_H
include/hw/ppc: Supply a few missing includes A few headers neglect to include headers they need. They compile only if something else includes the required header(s) first. Fix that. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Message-Id: <20221222104628.659681-3-armbru@redhat.com>
2022-12-22 13:46:26 +03:00
#include "hw/ppc/xive.h"
ppc/xive2: Introduce a XIVE2 core framework The XIVE2 interrupt controller of the POWER10 processor as the same logic as on POWER9 but its SW interface has been largely reworked. The interrupt controller has a new register interface, different BARs, extra VSDs. These will be described when we add the device model for the baremetal machine. The XIVE internal structures for the EAS, END, NVT have different layouts which is a problem for the current core XIVE framework. To avoid adding too much complexity in the XIVE models, a new XIVE2 core framework is introduced. It duplicates the models which are closely linked to the XIVE internal structures : Xive2Router and Xive2ENDSource and reuses the XiveSource, XivePresenter, XiveTCTX models, as they are more generic. Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-03-02 08:51:38 +03:00
#include "hw/ppc/xive2_regs.h"
include/hw/ppc: Supply a few missing includes A few headers neglect to include headers they need. They compile only if something else includes the required header(s) first. Fix that. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Message-Id: <20221222104628.659681-3-armbru@redhat.com>
2022-12-22 13:46:26 +03:00
#include "hw/sysbus.h"
ppc/xive2: Introduce a XIVE2 core framework The XIVE2 interrupt controller of the POWER10 processor as the same logic as on POWER9 but its SW interface has been largely reworked. The interrupt controller has a new register interface, different BARs, extra VSDs. These will be described when we add the device model for the baremetal machine. The XIVE internal structures for the EAS, END, NVT have different layouts which is a problem for the current core XIVE framework. To avoid adding too much complexity in the XIVE models, a new XIVE2 core framework is introduced. It duplicates the models which are closely linked to the XIVE internal structures : Xive2Router and Xive2ENDSource and reuses the XiveSource, XivePresenter, XiveTCTX models, as they are more generic. Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-03-02 08:51:38 +03:00
/*
* XIVE2 Router (POWER10)
*/
typedef struct Xive2Router {
SysBusDevice parent;
XiveFabric *xfb;
} Xive2Router;
#define TYPE_XIVE2_ROUTER "xive2-router"
OBJECT_DECLARE_TYPE(Xive2Router, Xive2RouterClass, XIVE2_ROUTER);
xive2: Add a get_config() handler for the router configuration Add GEN1 config even if we don't use it yet in the core framework. Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-03-02 08:51:39 +03:00
/*
* Configuration flags
*/
#define XIVE2_GEN1_TIMA_OS 0x00000001
pnv/xive2: Add support for automatic save&restore The XIVE interrupt controller on P10 can automatically save and restore the state of the interrupt registers under the internal NVP structure representing the VCPU. This saves a costly store/load in guest entries and exits. Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-03-02 08:51:39 +03:00
#define XIVE2_VP_SAVE_RESTORE 0x00000002
pnv/xive2: Add support for 8bits thread id Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-03-02 08:51:39 +03:00
#define XIVE2_THREADID_8BITS 0x00000004
xive2: Add a get_config() handler for the router configuration Add GEN1 config even if we don't use it yet in the core framework. Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-03-02 08:51:39 +03:00
ppc/xive2: Introduce a XIVE2 core framework The XIVE2 interrupt controller of the POWER10 processor as the same logic as on POWER9 but its SW interface has been largely reworked. The interrupt controller has a new register interface, different BARs, extra VSDs. These will be described when we add the device model for the baremetal machine. The XIVE internal structures for the EAS, END, NVT have different layouts which is a problem for the current core XIVE framework. To avoid adding too much complexity in the XIVE models, a new XIVE2 core framework is introduced. It duplicates the models which are closely linked to the XIVE internal structures : Xive2Router and Xive2ENDSource and reuses the XiveSource, XivePresenter, XiveTCTX models, as they are more generic. Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-03-02 08:51:38 +03:00
typedef struct Xive2RouterClass {
SysBusDeviceClass parent;
/* XIVE table accessors */
int (*get_eas)(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
Xive2Eas *eas);
ppc/xive: Add support for PQ state bits offload The trigger message coming from a HW source contains a special bit informing the XIVE interrupt controller that the PQ bits have been checked at the source or not. Depending on the value, the IC can perform the check and the state transition locally using its own PQ state bits. The following changes add new accessors to the XiveRouter required to query and update the PQ state bits. This only applies to the PowerNV machine. sPAPR accessors are provided but the pSeries machine should not be concerned by such complex configuration for the moment. Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-03-02 08:51:39 +03:00
int (*get_pq)(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
uint8_t *pq);
int (*set_pq)(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
uint8_t *pq);
ppc/xive2: Introduce a XIVE2 core framework The XIVE2 interrupt controller of the POWER10 processor as the same logic as on POWER9 but its SW interface has been largely reworked. The interrupt controller has a new register interface, different BARs, extra VSDs. These will be described when we add the device model for the baremetal machine. The XIVE internal structures for the EAS, END, NVT have different layouts which is a problem for the current core XIVE framework. To avoid adding too much complexity in the XIVE models, a new XIVE2 core framework is introduced. It duplicates the models which are closely linked to the XIVE internal structures : Xive2Router and Xive2ENDSource and reuses the XiveSource, XivePresenter, XiveTCTX models, as they are more generic. Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-03-02 08:51:38 +03:00
int (*get_end)(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
Xive2End *end);
int (*write_end)(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
Xive2End *end, uint8_t word_number);
int (*get_nvp)(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
Xive2Nvp *nvp);
int (*write_nvp)(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
Xive2Nvp *nvp, uint8_t word_number);
uint8_t (*get_block_id)(Xive2Router *xrtr);
xive2: Add a get_config() handler for the router configuration Add GEN1 config even if we don't use it yet in the core framework. Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-03-02 08:51:39 +03:00
uint32_t (*get_config)(Xive2Router *xrtr);
ppc/xive2: Introduce a XIVE2 core framework The XIVE2 interrupt controller of the POWER10 processor as the same logic as on POWER9 but its SW interface has been largely reworked. The interrupt controller has a new register interface, different BARs, extra VSDs. These will be described when we add the device model for the baremetal machine. The XIVE internal structures for the EAS, END, NVT have different layouts which is a problem for the current core XIVE framework. To avoid adding too much complexity in the XIVE models, a new XIVE2 core framework is introduced. It duplicates the models which are closely linked to the XIVE internal structures : Xive2Router and Xive2ENDSource and reuses the XiveSource, XivePresenter, XiveTCTX models, as they are more generic. Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-03-02 08:51:38 +03:00
} Xive2RouterClass;
int xive2_router_get_eas(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
Xive2Eas *eas);
int xive2_router_get_end(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
Xive2End *end);
int xive2_router_write_end(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
Xive2End *end, uint8_t word_number);
int xive2_router_get_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
Xive2Nvp *nvp);
int xive2_router_write_nvp(Xive2Router *xrtr, uint8_t nvp_blk, uint32_t nvp_idx,
Xive2Nvp *nvp, uint8_t word_number);
xive2: Add a get_config() handler for the router configuration Add GEN1 config even if we don't use it yet in the core framework. Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-03-02 08:51:39 +03:00
uint32_t xive2_router_get_config(Xive2Router *xrtr);
ppc/xive2: Introduce a XIVE2 core framework The XIVE2 interrupt controller of the POWER10 processor as the same logic as on POWER9 but its SW interface has been largely reworked. The interrupt controller has a new register interface, different BARs, extra VSDs. These will be described when we add the device model for the baremetal machine. The XIVE internal structures for the EAS, END, NVT have different layouts which is a problem for the current core XIVE framework. To avoid adding too much complexity in the XIVE models, a new XIVE2 core framework is introduced. It duplicates the models which are closely linked to the XIVE internal structures : Xive2Router and Xive2ENDSource and reuses the XiveSource, XivePresenter, XiveTCTX models, as they are more generic. Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-03-02 08:51:38 +03:00
ppc/xive: Add support for PQ state bits offload The trigger message coming from a HW source contains a special bit informing the XIVE interrupt controller that the PQ bits have been checked at the source or not. Depending on the value, the IC can perform the check and the state transition locally using its own PQ state bits. The following changes add new accessors to the XiveRouter required to query and update the PQ state bits. This only applies to the PowerNV machine. sPAPR accessors are provided but the pSeries machine should not be concerned by such complex configuration for the moment. Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-03-02 08:51:39 +03:00
void xive2_router_notify(XiveNotifier *xn, uint32_t lisn, bool pq_checked);
ppc/xive2: Introduce a XIVE2 core framework The XIVE2 interrupt controller of the POWER10 processor as the same logic as on POWER9 but its SW interface has been largely reworked. The interrupt controller has a new register interface, different BARs, extra VSDs. These will be described when we add the device model for the baremetal machine. The XIVE internal structures for the EAS, END, NVT have different layouts which is a problem for the current core XIVE framework. To avoid adding too much complexity in the XIVE models, a new XIVE2 core framework is introduced. It duplicates the models which are closely linked to the XIVE internal structures : Xive2Router and Xive2ENDSource and reuses the XiveSource, XivePresenter, XiveTCTX models, as they are more generic. Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-03-02 08:51:38 +03:00
ppc/xive2: Introduce a presenter matching routine The VP space is larger in XIVE2 (P10), 24 bits instead of 19bits on XIVE (P9), and the CAM line can use a 7bits or 8bits thread id. For now, we only use 7bits thread ids, same as P9, but because of the change of the size of the VP space, the CAM matching routine is different between P9 and P10. It is easier to duplicate the whole routine than to add extra handlers in xive_presenter_tctx_match() used for P9. We might come with a better solution later on, after we have added some more support for the XIVE2 controller. Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-03-02 08:51:38 +03:00
/*
* XIVE2 Presenter (POWER10)
*/
int xive2_presenter_tctx_match(XivePresenter *xptr, XiveTCTX *tctx,
uint8_t format,
uint8_t nvt_blk, uint32_t nvt_idx,
bool cam_ignore, uint32_t logic_serv);
ppc/xive2: Introduce a XIVE2 core framework The XIVE2 interrupt controller of the POWER10 processor as the same logic as on POWER9 but its SW interface has been largely reworked. The interrupt controller has a new register interface, different BARs, extra VSDs. These will be described when we add the device model for the baremetal machine. The XIVE internal structures for the EAS, END, NVT have different layouts which is a problem for the current core XIVE framework. To avoid adding too much complexity in the XIVE models, a new XIVE2 core framework is introduced. It duplicates the models which are closely linked to the XIVE internal structures : Xive2Router and Xive2ENDSource and reuses the XiveSource, XivePresenter, XiveTCTX models, as they are more generic. Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-03-02 08:51:38 +03:00
/*
* XIVE2 END ESBs (POWER10)
*/
#define TYPE_XIVE2_END_SOURCE "xive2-end-source"
OBJECT_DECLARE_SIMPLE_TYPE(Xive2EndSource, XIVE2_END_SOURCE)
typedef struct Xive2EndSource {
DeviceState parent;
uint32_t nr_ends;
/* ESB memory region */
uint32_t esb_shift;
MemoryRegion esb_mmio;
Xive2Router *xrtr;
} Xive2EndSource;
ppc/pnv: add XIVE Gen2 TIMA support Only the CAM line updates done by the hypervisor are specific to POWER10. Instead of duplicating the TM ops table, we handle these commands locally under the PowerNV XIVE2 model. Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-03-02 08:51:39 +03:00
/*
* XIVE2 Thread Interrupt Management Area (POWER10)
*/
void xive2_tm_push_os_ctx(XivePresenter *xptr, XiveTCTX *tctx, hwaddr offset,
uint64_t value, unsigned size);
uint64_t xive2_tm_pull_os_ctx(XivePresenter *xptr, XiveTCTX *tctx,
hwaddr offset, unsigned size);
ppc/xive2: Introduce a XIVE2 core framework The XIVE2 interrupt controller of the POWER10 processor as the same logic as on POWER9 but its SW interface has been largely reworked. The interrupt controller has a new register interface, different BARs, extra VSDs. These will be described when we add the device model for the baremetal machine. The XIVE internal structures for the EAS, END, NVT have different layouts which is a problem for the current core XIVE framework. To avoid adding too much complexity in the XIVE models, a new XIVE2 core framework is introduced. It duplicates the models which are closely linked to the XIVE internal structures : Xive2Router and Xive2ENDSource and reuses the XiveSource, XivePresenter, XiveTCTX models, as they are more generic. Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-03-02 08:51:38 +03:00
#endif /* PPC_XIVE2_H */
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