linux-toradex.git/drivers/gpu/host1x/cdma.h, branch v4.19 Linux kernel for Apalis and Colibri modules gpu: host1x: Store pointer to client in jobs 2018-05-18T19:50:24+00:00 Thierry Reding treding@nvidia.com 2018-05-16T12:12:33+00:00 bf3d41ccabb53c57e19fcfc8b81d790043ac2bed Rather than storing some identifier derived from the application context that can't be used concretely anywhere, store a pointer to the client directly so that accesses can be made directly through that client object. Reviewed-by: Dmitry Osipenko <digetx@gmail.com> Tested-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com> 
Rather than storing some identifier derived from the application
context that can't be used concretely anywhere, store a pointer to the
client directly so that accesses can be made directly through that
client object.

Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Tested-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
gpu: host1x: Fix compiler errors by converting to dma_addr_t 2018-05-18T09:23:48+00:00 Emil Goode emil.fsw@goode.io 2018-05-16T10:22:04+00:00 2f8a6da866eff746a9f8c7745790f3765baeb589 The compiler is complaining with the following errors: drivers/gpu/host1x/cdma.c:94:48: error: passing argument 3 of ‘dma_alloc_wc’ from incompatible pointer type [-Werror=incompatible-pointer-types] drivers/gpu/host1x/cdma.c:113:48: error: passing argument 3 of ‘dma_alloc_wc’ from incompatible pointer type [-Werror=incompatible-pointer-types] The expected pointer type of the third argument to dma_alloc_wc() is dma_addr_t but phys_addr_t is passed. Change the phys member of struct push_buffer to be dma_addr_t so that we pass the correct type to dma_alloc_wc(). Also check pb->mapped for non-NULL in the destroy function as that is the right way of checking if dma_alloc_wc() was successful. Signed-off-by: Emil Goode <emil.fsw@goode.io> Signed-off-by: Thierry Reding <treding@nvidia.com> 
The compiler is complaining with the following errors:

drivers/gpu/host1x/cdma.c:94:48: error:
	passing argument 3 of ‘dma_alloc_wc’ from incompatible pointer type
	[-Werror=incompatible-pointer-types]

drivers/gpu/host1x/cdma.c:113:48: error:
	passing argument 3 of ‘dma_alloc_wc’ from incompatible pointer type
	[-Werror=incompatible-pointer-types]

The expected pointer type of the third argument to dma_alloc_wc() is
dma_addr_t but phys_addr_t is passed.

Change the phys member of struct push_buffer to be dma_addr_t so that we
pass the correct type to dma_alloc_wc().
Also check pb->mapped for non-NULL in the destroy function as that is the
right way of checking if dma_alloc_wc() was successful.

Signed-off-by: Emil Goode <emil.fsw@goode.io>
Signed-off-by: Thierry Reding <treding@nvidia.com>
gpu: host1x: Remove unused host1x_cdma_stop() definition 2017-06-15T12:25:18+00:00 Dmitry Osipenko digetx@gmail.com 2017-06-14T23:18:41+00:00 03f0de770eda7a3f2e3950ca9f15d73e1dfd4596 There is no host1x_cdma_stop() in the code, let's remove its definition from the header file. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Reviewed-by: Erik Faye-Lund <kusmabite@gmail.com> Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> 
There is no host1x_cdma_stop() in the code, let's remove its definition
from the header file.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Erik Faye-Lund <kusmabite@gmail.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
gpu: host1x: Add IOMMU support 2017-04-05T16:11:43+00:00 Mikko Perttunen mperttunen@nvidia.com 2016-12-14T11:16:14+00:00 404bfb78daf3bedafb0bfab24947059575cbea3d Add support for the Host1x unit to be located behind an IOMMU. This is required when gather buffers may be allocated non-contiguously in physical memory, as can be the case when TegraDRM is also using the IOMMU. Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> 
Add support for the Host1x unit to be located behind
an IOMMU. This is required when gather buffers may be
allocated non-contiguously in physical memory, as can
be the case when TegraDRM is also using the IOMMU.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
gpu: host1x: Make mapped field of push buffers void * 2014-11-13T15:11:35+00:00 Thierry Reding treding@nvidia.com 2014-06-12T11:16:54+00:00 0169b93f4492c74d046b456d93b37bd7b55ecd42 This reduces the amount of casting that needs to be done to get rid of annoying warnings on 64-bit builds. Signed-off-by: Thierry Reding <treding@nvidia.com> 
This reduces the amount of casting that needs to be done to get rid of
annoying warnings on 64-bit builds.

Signed-off-by: Thierry Reding <treding@nvidia.com>
gpu: host1x: Add channel support 2013-04-22T10:32:43+00:00 Terje Bergstrom tbergstrom@nvidia.com 2013-03-22T14:34:03+00:00 6579324a41cc414009a601738b70a53d6376325c Add support for host1x client modules, and host1x channels to submit work to the clients. Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de> Tested-by: Thierry Reding <thierry.reding@avionic-design.de> Tested-by: Erik Faye-Lund <kusmabite@gmail.com> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> 
Add support for host1x client modules, and host1x channels to submit
work to the clients.

Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>