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path: root/hw/etraxfs_dma.c
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2009-06-16Remove io_index argument from cpu_register_io_memory()Avi Kivity
The parameter is always zero except when registering the three internal io regions (ROM, unassigned, notdirty). Remove the parameter to reduce the API's power, thus facilitating future change. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-15etrax: Don't pass CPUState to peripherals.Edgar E. Iglesias
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-06-12ETRAX: DMA fixes for 64bit hosts.Edgar E. Iglesias
Mainly to remove warnings. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-18etrax: Don't keep the passed irq pointer.Edgar E. Iglesias
Copy passed irq object at channel connect. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-08Replace cpu_abort with hw_errorPaul Brook
Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-05-05ETRAX: Simplify interrupt signaling.Edgar E. Iglesias
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-02-05hw: remove error handling from qemu_malloc() callers (Avi Kivity)aliguori
Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6529 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-07ETRAX: Process out channels immediately when the channel is started.edgar_igl
* Process out channels immediately when the channel is started. * Context descriptor load does not start a channel. * Store updated descriptors after processing them regardless of eol state. * Correct control-register area size. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6208 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-07ETRAX-FS: Simplify the DMA blocks address registration and decoding.edgar_igl
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5898 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-01Change MMIO callbacks to use offsets, not absolute addresses.pbrook
Signed-off-by: Paul Brook <paul@codesourcery.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5849 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-13ETRAX-FS: Don't schedule DMA processing without active channels.edgar_igl
Avoid scheduling DMA processing when all channels are stopped or at end-of-list. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5720 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-04ETRAX-FS: Make etraxfs_dmac_run local.edgar_igl
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5624 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-04ETRAX-FS: Fix DMA warnings.edgar_igl
Signed-off-by: Jan Kiszka <jan.kiszka@web.de> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5621 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-31Make DMA bottom-half driven (v2)aliguori
The current DMA routines are driven by a call in main_loop_wait() after every select. This patch converts the DMA code to be driven by a constantly rescheduled bottom half. The advantage of using a scheduled bottom half is that we can stop scheduling the bottom half when there no DMA channels are runnable. This means we can potentially detect this case and sleep longer in the main loop. The only two architectures implementing DMA_run() are cris and i386. For cris, I converted it to a simple repeating bottom half. I've only compile tested this as cris does not seem to work on a 64-bit host. It should be functionally identical to the previous implementation so I expect it to work. For x86, I've made sure to only fire the DMA bottom half if there is a DMA channel that is runnable. The effect of this is that unless you're using sb16 or a floppy disk, the DMA bottom half never fires. You probably should test this malc. My own benchmarks actually show slight improvement by it's possible the change in timing could affect your demos. Since v1, I've changed the code to use a BH instead of a timer. cris at least seems to depend on faster than 10ms polling. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5573 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-27ETRAX-FS: Process outgoing DMA channels until EOL.edgar_igl
For outgoing DMA channels, keep processing descriptors until hitting end of list. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5553 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-03ETRAX-FS: Add support for DMA channel resets, needed for recent linux kernels.edgar_igl
* Correct numeric value for the RST state. * Add emulation for reseting a DMA channel. * Add a few sanity checks. * Make it compile with debug enabled. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5147 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-30Avoid refering to CRIS specific cpu-state to be able to use these blocks ↵edgar_igl
with other cores. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4806 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-30Avoid CRIS related warnings by Jan Kiszka.edgar_igl
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4804 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-10ETRAX: More DMA context level related fixes.edgar_igl
* When hitting EOL (end of list) at the data descriptor level, the DMA should mark the current context-descriptor as disabled and perform a context-store so software can see whats goin on. * Context loads update RW_SAVED_DATA_BUF, data loads dont. This fixes an issue with ethernet bootstrapping. * Reorder the logic for processing out channels to be more like the one for input channels. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4723 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-06ETRAX machine updates.edgar_igl
* Move DMA_run into the dma controller to allow for multiple ETRAX/CRIS machines. * Support both ELF and kimage kernel images. * Correct emulation of the DMA RW_DATA register. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4678 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-11Add support for parts of the etraxfs dma controller.edgar_igl
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4428 c046a42c-6fe2-441c-8c8c-71466251a162
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