linux-stable.git/drivers/gpu/host1x/hw, branch linux-3.14.y

gpu: host1x: handle the correct # of syncpt regs

2014-06-07T17:28:09+00:00

commit 22bbd5d949dc7fdd72a4e78e767fa09d8e54b446 upstream.

BIT_WORD() truncates rather than rounds, so the loops in
syncpt_thresh_isr() and _host1x_intr_disable_all_syncpt_intrs() use <=
rather than < in an attempt to process the correct number of registers
when rounding of the conversion of count of bits to count of words is
necessary. However, when rounding isn't necessary because the value is
already a multiple of the divisor (as is the case for all values of
nb_pts the code actually sees), this causes one too many registers to
be processed.

Solve this by using and explicit DIV_ROUND_UP() call, rather than
BIT_WORD(), and comparing with < rather than <=.

Fixes: 7ede0b0bf3e2 ("gpu: host1x: Add syncpoint wait and interrupts")
Signed-off-by: Stephen Warren 
Acked-By: Terje Bergstrom 
Signed-off-by: Thierry Reding 
Signed-off-by: Greg Kroah-Hartman

gpu: host1x: Remove unnecessary include

2014-01-14T13:39:45+00:00

Nothing from the asm/mach/irq.h header is needed in this file, so there
is no need to include it.

Signed-off-by: Thierry Reding

gpu: host1x: Add Tegra124 support

2013-12-19T08:29:52+00:00

Tegra124 has 192 syncpoints whereas its predecessors had 32 syncpoints.
This required changes to the hardware register layout.

Signed-off-by: Arto Merilainen 
Signed-off-by: Thierry Reding

gpu: host1x: Use the correct HW headers for host1x02

2013-12-19T08:29:51+00:00

An earlier patch added a subset of the required HW specific header files
but didn't actually include the right ones when compiling for host1x02.

Signed-off-by: Thierry Reding

gpu: host1x: Silence a few warnings with LPAE=y

2013-11-28T14:13:47+00:00

When building with LPAE=y (64-bit dma_addr_t), the following warnings are seen:

drivers/gpu/host1x/hw/cdma_hw.c:57:3: warning: format '%x' expects
  argument of type 'unsigned int', but argument 5 has type 'dma_addr_t'

drivers/gpu/host1x/hw/debug_hw.c:167:10: warning: format '%x' expects
  argument of type 'unsigned int', but argument 3 has type 'dma_addr_t'

The agreed-to solution for this is upcast to u64 and using %llx.

Signed-off-by: Olof Johansson 
Signed-off-by: Thierry Reding

gpu: host1x: Add syncpoint base support

2013-10-31T08:55:48+00:00

This patch adds support for hardware syncpoint bases. This creates
a simple mechanism to stall the command FIFO until an operation is
completed.

Signed-off-by: Arto Merilainen 
Reviewed-by: Terje Bergstrom 
Signed-off-by: Thierry Reding

gpu: host1x: Add support for Tegra114

2013-10-31T08:55:41+00:00

Tegra114 uses a slightly updated version of host1x with an additional
syncpoint.

Signed-off-by: Thierry Reding

gpu: host1x: Use relative include paths

2013-10-31T08:55:40+00:00

This is slightly safer than adding -Idrivers/gpu/host1x to cflags-y.

Signed-off-by: Thierry Reding

gpu: host1x: Expose syncpt and channel functionality

2013-10-31T08:20:11+00:00

Expose the buffer objects, syncpoint and channel functionality in the
public public header so that drivers can use them.

Signed-off-by: Thierry Reding

gpu: host1x: Make host1x header file public

2013-10-31T08:20:10+00:00

In preparation to support host1x clients other than DRM, move this
header into a public location.

Signed-off-by: Thierry Reding