diff options
| author | Zack Rusin <zackr@vmware.com> | 2022-03-07 19:24:12 +0300 |
|---|---|---|
| committer | Zack Rusin <zackr@vmware.com> | 2022-03-11 21:29:37 +0300 |
| commit | 32160e6a98f33cd96fde52cd56b9b758b59d3603 (patch) | |
| tree | 703856c7f666fe9f08d3510c7b3d198ab0b966ad /drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | |
| parent | 5405d25b9e8e6e0d3bdb04833d528a9bb35fe7ce (diff) | |
| download | linux-32160e6a98f33cd96fde52cd56b9b758b59d3603.tar.xz | |
drm/vmwgfx: Implement MSI/MSI-X support for IRQs
SVGAv3 deprecates legacy interrupts and adds support for MSI/MSI-X. With
MSI the driver visible side remains largely unchanged but with MSI-X
each interrupt gets delivered on its own vector.
Add support for MSI/MSI-X while preserving the old functionality for
SVGAv2. Code between the SVGAv2 and SVGAv3 is exactly the same, only
the number of available vectors changes, in particular between legacy
and MSI-X interrupts.
Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: Martin Krastev <krastevm@vmware.com>
Reviewed-by: Maaz Mombasawala <mombasawalam@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220307162412.1183049-1-zack@kde.org
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_drv.h')
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h index 12eb4de41036..be19aa6e1f13 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h @@ -66,6 +66,11 @@ #define VMWGFX_PCI_ID_SVGA3 0x0406 /* + * This has to match get_count_order(SVGA_IRQFLAG_MAX) + */ +#define VMWGFX_MAX_NUM_IRQS 6 + +/* * Perhaps we should have sysfs entries for these. */ #define VMWGFX_NUM_GB_CONTEXT 256 @@ -532,6 +537,8 @@ struct vmw_private { bool has_mob; spinlock_t hw_lock; bool assume_16bpp; + u32 irqs[VMWGFX_MAX_NUM_IRQS]; + u32 num_irq_vectors; enum vmw_sm_type sm_type; @@ -1158,7 +1165,7 @@ bool vmw_cmd_describe(const void *buf, u32 *size, char const **cmd); * IRQs and wating - vmwgfx_irq.c */ -extern int vmw_irq_install(struct drm_device *dev, int irq); +extern int vmw_irq_install(struct vmw_private *dev_priv); extern void vmw_irq_uninstall(struct drm_device *dev); extern bool vmw_seqno_passed(struct vmw_private *dev_priv, uint32_t seqno); |