linux/drivers/gpu/host1x, branch v3.19

gpu: host1x: mipi: Set MIPI_CAL_BIAS_PAD_CFG1 register

2014-11-13T15:11:57Z

During calibration, sets the "internal reference level for drive pull- down" to the value specified in the Tegra TRM. Signed-off-by: Sean Paul Signed-off-by: Thierry Reding

gpu: host1x: mipi: Calibrate clock lanes

2014-11-13T15:11:54Z

Include the clock lanes when calibrating the MIPI PHY on Tegra124 compatible devices. Signed-off-by: Sean Paul [treding@nvidia.com: bikeshedding] Signed-off-by: Thierry Reding

gpu: host1x: mipi: Preserve the contents of MIPI_CAL_CTRL

2014-11-13T15:11:51Z

By paving the CTRL reg value, the current code changes MIPI_CAL_PRESCALE ("Auto-cal calibration step prescale") from 1us to 0.1us (val=0). In the description for PHY's noise filter (MIPI_CAL_NOISE_FLT), the TRM states that if the value of the prescale is 0 (or 0.1us), the filter should be set between 2-5. However, the current code sets it to 0. For now, let's keep the prescale and filter values as-is, which is most likely the power-on-reset values of 0x2 and 0xa, respectively. Signed-off-by: Sean Paul Signed-off-by: Thierry Reding

gpu: host1x: mipi: Registers are 32 bits wide

2014-11-13T15:11:48Z

On 64-bit platforms an unsigned long would be 64 bit and cause unnecessary casting when being passed to writel() or returned from readl(). Make register values 32 bits wide to avoid that. Signed-off-by: Thierry Reding

gpu: host1x: Make gather offsets unsigned

2014-11-13T15:11:44Z

Use the u32 type for the offset in the host1x_job_gather structure for consistentcy with other structures. Negative offsets don't make sense in this context. Signed-off-by: Thierry Reding

gpu: host1x: Print address/offset pairs consistently

2014-11-13T15:11:41Z

Consistently use a format of %pad+%#x to print address/offset in debug messages. Signed-off-by: Thierry Reding

gpu: host1x: Fix typo in comment

2014-11-13T15:11:38Z

Signed-off-by: Thierry Reding

gpu: host1x: Make mapped field of push buffers void *

2014-11-13T15:11:35Z

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

gpu: host1x: Use struct host1x_bo pointers in traces

2014-11-13T15:11:32Z

Rather than cast to a u32 use the struct host1x_bo pointers directly. This avoid annoying warnings for 64-bit builds. Signed-off-by: Thierry Reding

drm/tegra: Make job submission 64-bit safe

2014-08-04T08:07:36Z

Job submission currently relies on the fact that struct drm_tegra_reloc and struct host1x_reloc are the same size and uses a simple call to the copy_from_user() function to copy them to kernel space. This causes the handle to be stored in the buffer object field, which then needs a cast to a 32 bit integer to resolve it to a proper buffer object pointer and store it back in the buffer object field. On 64-bit architectures that will no longer work, since pointers are 64 bits wide whereas handles will remain 32 bits. This causes the sizes of both structures to because different and copying will no longer work. Fix this by adding a new function, host1x_reloc_get_user(), that copies the structures field by field. While at it, use substructures for the command and target buffers in struct host1x_reloc for better readability. Also use unsized types to make it more obvious that this isn't part of userspace ABI. Signed-off-by: Thierry Reding