This allows for more versatility in checking and clearing firmware registers used for interrupt handling.
Signed-off-by: Matt Coster <matt.cos...@imgtec.com> --- Changes in v4: - None - Link to v3: https://lore.kernel.org/r/20250310-sets-bxs-4-64-patch-v1-v3-12-143b3dbef...@imgtec.com Changes in v3: - None - Link to v2: https://lore.kernel.org/r/20241118-sets-bxs-4-64-patch-v1-v2-14-3fd45d9fb...@imgtec.com Changes in v2: - None - Link to v1: https://lore.kernel.org/r/20241105-sets-bxs-4-64-patch-v1-v1-14-4ed30e865...@imgtec.com --- drivers/gpu/drm/imagination/pvr_device.h | 18 +++++++++++++ drivers/gpu/drm/imagination/pvr_fw.h | 45 +++++++++---------------------- drivers/gpu/drm/imagination/pvr_fw_meta.c | 22 ++++++++++----- drivers/gpu/drm/imagination/pvr_fw_mips.c | 22 ++++++++++----- 4 files changed, 63 insertions(+), 44 deletions(-) diff --git a/drivers/gpu/drm/imagination/pvr_device.h b/drivers/gpu/drm/imagination/pvr_device.h index 12bf0b9e5bfb48ef9e5ed9faa44e0896b7555f49..eb5da8c7040fc9e9751f433279cb0c92fd4d1336 100644 --- a/drivers/gpu/drm/imagination/pvr_device.h +++ b/drivers/gpu/drm/imagination/pvr_device.h @@ -739,4 +739,22 @@ pvr_ioctl_union_padding_check(void *instance, size_t union_offset, __union_size, __member_size); \ }) +/* + * These utility functions should more properly be placed in pvr_fw.h, but that + * would cause a dependency cycle between that header and this one. Since + * they're primarily used in pvr_device.c, let's put them in here for now. + */ + +static __always_inline bool +pvr_fw_irq_pending(struct pvr_device *pvr_dev) +{ + return pvr_dev->fw_dev.defs->irq_pending(pvr_dev); +} + +static __always_inline void +pvr_fw_irq_clear(struct pvr_device *pvr_dev) +{ + pvr_dev->fw_dev.defs->irq_clear(pvr_dev); +} + #endif /* PVR_DEVICE_H */ diff --git a/drivers/gpu/drm/imagination/pvr_fw.h b/drivers/gpu/drm/imagination/pvr_fw.h index 88ad713468ce3a1ee459b04dde5363c24791a4f1..ab69f40a7fbc6304171f16dd16d825a68b0362a5 100644 --- a/drivers/gpu/drm/imagination/pvr_fw.h +++ b/drivers/gpu/drm/imagination/pvr_fw.h @@ -167,29 +167,22 @@ struct pvr_fw_defs { int (*wrapper_init)(struct pvr_device *pvr_dev); /** - * @irq: FW Interrupt information. + * @irq_pending: Check interrupt status register for pending interrupts. * - * Those are processor dependent, and should be initialized by the - * processor backend in pvr_fw_funcs::init(). + * @pvr_dev: Target PowerVR device. + * + * This function is mandatory. */ - struct { - /** @status_reg: FW interrupt status register. */ - u32 status_reg; + bool (*irq_pending)(struct pvr_device *pvr_dev); - /** - * @clear_reg: FW interrupt clear register. - * - * If @status_reg == @clear_reg, we clear by write a bit to zero, - * otherwise we clear by writing a bit to one. - */ - u32 clear_reg; - - /** @status_mask: Bitmask of events to listen for in the status_reg. */ - u32 status_mask; - - /** @clear_mask: Value to write to the clear_reg in order to clear FW IRQs. */ - u32 clear_mask; - } irq; + /** + * @irq_clear: Clear pending interrupts. + * + * @pvr_dev: Target PowerVR device. + * + * This function is mandatory. + */ + void (*irq_clear)(struct pvr_device *pvr_dev); /** * @has_fixed_data_addr: Specify whether the firmware fixed data must be loaded at the @@ -390,18 +383,6 @@ struct pvr_fw_device { } fw_objs; }; -#define pvr_fw_irq_read_reg(pvr_dev, name) \ - pvr_cr_read32((pvr_dev), (pvr_dev)->fw_dev.defs->irq.name ## _reg) - -#define pvr_fw_irq_write_reg(pvr_dev, name, value) \ - pvr_cr_write32((pvr_dev), (pvr_dev)->fw_dev.defs->irq.name ## _reg, value) - -#define pvr_fw_irq_pending(pvr_dev) \ - (pvr_fw_irq_read_reg(pvr_dev, status) & (pvr_dev)->fw_dev.defs->irq.status_mask) - -#define pvr_fw_irq_clear(pvr_dev) \ - pvr_fw_irq_write_reg(pvr_dev, clear, (pvr_dev)->fw_dev.defs->irq.clear_mask) - enum pvr_fw_processor_type { PVR_FW_PROCESSOR_TYPE_META = 0, PVR_FW_PROCESSOR_TYPE_MIPS, diff --git a/drivers/gpu/drm/imagination/pvr_fw_meta.c b/drivers/gpu/drm/imagination/pvr_fw_meta.c index 62ddfea6b7306784b979ce209bfdf4a9938f8984..d72e0eae9e4b16cb31c48797ffcf5138d2728862 100644 --- a/drivers/gpu/drm/imagination/pvr_fw_meta.c +++ b/drivers/gpu/drm/imagination/pvr_fw_meta.c @@ -533,6 +533,20 @@ pvr_meta_vm_unmap(struct pvr_device *pvr_dev, struct pvr_fw_object *fw_obj) fw_obj->fw_mm_node.start, fw_obj->fw_mm_node.size); } +static bool +pvr_meta_irq_pending(struct pvr_device *pvr_dev) +{ + return pvr_cr_read32(pvr_dev, ROGUE_CR_META_SP_MSLVIRQSTATUS) & + ROGUE_CR_META_SP_MSLVIRQSTATUS_TRIGVECT2_EN; +} + +static void +pvr_meta_irq_clear(struct pvr_device *pvr_dev) +{ + pvr_cr_write32(pvr_dev, ROGUE_CR_META_SP_MSLVIRQSTATUS, + ROGUE_CR_META_SP_MSLVIRQSTATUS_TRIGVECT2_CLRMSK); +} + const struct pvr_fw_defs pvr_fw_defs_meta = { .init = pvr_meta_init, .fw_process = pvr_meta_fw_process, @@ -540,11 +554,7 @@ const struct pvr_fw_defs pvr_fw_defs_meta = { .vm_unmap = pvr_meta_vm_unmap, .get_fw_addr_with_offset = pvr_meta_get_fw_addr_with_offset, .wrapper_init = pvr_meta_wrapper_init, - .irq = { - .status_reg = ROGUE_CR_META_SP_MSLVIRQSTATUS, - .clear_reg = ROGUE_CR_META_SP_MSLVIRQSTATUS, - .status_mask = ROGUE_CR_META_SP_MSLVIRQSTATUS_TRIGVECT2_EN, - .clear_mask = ROGUE_CR_META_SP_MSLVIRQSTATUS_TRIGVECT2_CLRMSK, - }, + .irq_pending = pvr_meta_irq_pending, + .irq_clear = pvr_meta_irq_clear, .has_fixed_data_addr = false, }; diff --git a/drivers/gpu/drm/imagination/pvr_fw_mips.c b/drivers/gpu/drm/imagination/pvr_fw_mips.c index 2c3172841886b70eb7a9992ec3851f18adcad8d5..524a9bd0a20b64c509f5708cc61d93b4c864b835 100644 --- a/drivers/gpu/drm/imagination/pvr_fw_mips.c +++ b/drivers/gpu/drm/imagination/pvr_fw_mips.c @@ -227,6 +227,20 @@ pvr_mips_get_fw_addr_with_offset(struct pvr_fw_object *fw_obj, u32 offset) ROGUE_FW_HEAP_MIPS_BASE; } +static bool +pvr_mips_irq_pending(struct pvr_device *pvr_dev) +{ + return pvr_cr_read32(pvr_dev, ROGUE_CR_MIPS_WRAPPER_IRQ_STATUS) & + ROGUE_CR_MIPS_WRAPPER_IRQ_STATUS_EVENT_EN; +} + +static void +pvr_mips_irq_clear(struct pvr_device *pvr_dev) +{ + pvr_cr_write32(pvr_dev, ROGUE_CR_MIPS_WRAPPER_IRQ_CLEAR, + ROGUE_CR_MIPS_WRAPPER_IRQ_CLEAR_EVENT_EN); +} + const struct pvr_fw_defs pvr_fw_defs_mips = { .init = pvr_mips_init, .fini = pvr_mips_fini, @@ -235,11 +249,7 @@ const struct pvr_fw_defs pvr_fw_defs_mips = { .vm_unmap = pvr_vm_mips_unmap, .get_fw_addr_with_offset = pvr_mips_get_fw_addr_with_offset, .wrapper_init = pvr_mips_wrapper_init, - .irq = { - .status_reg = ROGUE_CR_MIPS_WRAPPER_IRQ_STATUS, - .clear_reg = ROGUE_CR_MIPS_WRAPPER_IRQ_CLEAR, - .status_mask = ROGUE_CR_MIPS_WRAPPER_IRQ_STATUS_EVENT_EN, - .clear_mask = ROGUE_CR_MIPS_WRAPPER_IRQ_CLEAR_EVENT_EN, - }, + .irq_pending = pvr_mips_irq_pending, + .irq_clear = pvr_mips_irq_clear, .has_fixed_data_addr = true, }; -- 2.49.0
