mirror of
https://gitlab.freedesktop.org/mesa/drm.git
synced 2026-01-01 13:00:15 +01:00
25e319c1ef
DRM_IOCTL_VIA_DMA_INIT DRM_IOCTL_VIA_CMDBUFFER DRM_IOCTL_VIA_FLUSH
The first ioctl sets up an area in AGP memory that will be used as the ring
buffer. The second ioctl copies a command buffer from user space memory
to the ring buffer. The third ioctl waits for engine idle until it
returns.
The motivation for this patch is to avoid the wait for engine idle call
before each buffer flush in the current DRI driver. With this patch,
the DRI driver can continue to flush its buffer as long as there is
free space in the ring buffer.
This patch adds an additional copy operation on the command buffer. This
buffer copying is necessary to support multiple DRI clients rendering
simultaneously. Otherwise, more CPU time will be spent in the busy loop
waiting for engine idle between DRI context switch. Even in the single
client case, the tradeoff is reasonable in comparision to the kernel
call to check for free buffer space for the client to render directly
to the ring buffer.
104 lines
2.8 KiB
Text
104 lines
2.8 KiB
Text
#
|
|
# Makefile for the drm device driver. This driver provides support for the
|
|
# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
|
|
#
|
|
# Based on David Woodhouse's mtd build.
|
|
#
|
|
# $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/Makefile.kernel,v 1.18 2003/08/16 17:59:17 dawes Exp $
|
|
#
|
|
|
|
gamma-objs := gamma_drv.o gamma_dma.o
|
|
tdfx-objs := tdfx_drv.o
|
|
r128-objs := r128_drv.o r128_cce.o r128_state.o r128_irq.o
|
|
mga-objs := mga_drv.o mga_dma.o mga_state.o mga_warp.o mga_irq.o
|
|
i810-objs := i810_drv.o i810_dma.o
|
|
i830-objs := i830_drv.o i830_dma.o i830_irq.o
|
|
i915-objs := i915_drv.o i915_dma.o i915_irq.o i915_mem.o
|
|
radeon-objs := radeon_drv.o radeon_cp.o radeon_state.o radeon_mem.o radeon_irq.o
|
|
sis-objs := sis_drv.o sis_ds.o sis_mm.o
|
|
ffb-objs := ffb_drv.o ffb_context.o
|
|
savage-objs := savage_drv.o savage_dma.o
|
|
via-objs := via_irq.o via_drv.o via_ds.o via_map.o via_mm.o via_dma.o
|
|
mach64-objs := mach64_drv.o mach64_dma.o mach64_irq.o mach64_state.o
|
|
|
|
# Kernel version checks
|
|
|
|
BELOW25 := $(shell if [ $(PATCHLEVEL) -lt 5 ]; then echo y; fi)
|
|
|
|
# There were major build changes starting with 2.5.52
|
|
ifneq ($(BELOW25),y)
|
|
BELOW2552 := $(shell if [ $(PATCHLEVEL) -eq 5 -a $(SUBLEVEL) -lt 52 ]; then echo y; fi)
|
|
else
|
|
BELOW2552 := y
|
|
endif
|
|
|
|
ifeq ($(BELOW25),y)
|
|
O_TARGET := drm.o
|
|
list-multi := gamma.o tdfx.o r128.o mga.o i810.o i830.o ffb.o radeon.o \
|
|
savage.o via.o mach64.o i915.o
|
|
obj-m :=
|
|
obj-n :=
|
|
obj- :=
|
|
export-objs := via_mm.o
|
|
endif
|
|
|
|
obj-$(CONFIG_DRM_GAMMA) += gamma.o
|
|
obj-$(CONFIG_DRM_TDFX) += tdfx.o
|
|
obj-$(CONFIG_DRM_R128) += r128.o
|
|
obj-$(CONFIG_DRM_RADEON)+= radeon.o
|
|
obj-$(CONFIG_DRM_MGA) += mga.o
|
|
obj-$(CONFIG_DRM_I810) += i810.o
|
|
obj-$(CONFIG_DRM_I830) += i830.o
|
|
obj-$(CONFIG_DRM_I915) += i915.o
|
|
obj-$(CONFIG_DRM_SIS) += sis.o
|
|
obj-$(CONFIG_DRM_FFB) += ffb.o
|
|
obj-$(CONFIG_DRM_SAVAGE)+= savage.o
|
|
obj-$(CONFIG_DRM_VIA) += via.o
|
|
obj-$(CONFIG_DRM_MACH64)+= mach64.o
|
|
|
|
ifeq ($(BELOW2552),y)
|
|
include $(TOPDIR)/Rules.make
|
|
endif
|
|
|
|
ifeq ($(BELOW25),y)
|
|
gamma.o: $(gamma-objs) $(lib)
|
|
$(LD) -r -o $@ $(gamma-objs) $(lib)
|
|
|
|
tdfx.o: $(tdfx-objs) $(lib)
|
|
$(LD) -r -o $@ $(tdfx-objs) $(lib)
|
|
|
|
mga.o: $(mga-objs) $(lib)
|
|
$(LD) -r -o $@ $(mga-objs) $(lib)
|
|
|
|
i810.o: $(i810-objs) $(lib)
|
|
$(LD) -r -o $@ $(i810-objs) $(lib)
|
|
|
|
i830.o: $(i830-objs) $(lib)
|
|
$(LD) -r -o $@ $(i830-objs) $(lib)
|
|
|
|
i915.o: $(i915-objs) $(lib)
|
|
$(LD) -r -o $@ $(i915-objs) $(lib)
|
|
|
|
r128.o: $(r128-objs) $(lib)
|
|
$(LD) -r -o $@ $(r128-objs) $(lib)
|
|
|
|
radeon.o: $(radeon-objs) $(lib)
|
|
$(LD) -r -o $@ $(radeon-objs) $(lib)
|
|
|
|
sis.o: $(sis-objs) $(lib)
|
|
$(LD) -r -o $@ $(sis-objs) $(lib)
|
|
|
|
ffb.o: $(ffb-objs) $(lib)
|
|
$(LD) -r -o $@ $(ffb-objs) $(lib)
|
|
|
|
savage.o: $(savage-objs) $(lib)
|
|
$(LD) -r -o $@ $(savage-objs) $(lib)
|
|
|
|
via.o: $(via-objs) $(lib)
|
|
$(LD) -r -o $@ $(via-objs) $(lib)
|
|
|
|
mach64.o: $(mach64-objs) $(lib)
|
|
$(LD) -r -o $@ $(mach64-objs) $(lib)
|
|
|
|
endif
|
|
|