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linux/drivers/gpu/drm/nouveau/core/os.h

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drm/nouveau/core: pull in most of the new core infrastructure This commit provides most of the infrastructure to support a major overhaul of Nouveau's internals coming in the following commits. This work aims to take all the things we've learned over the last several years, and turn that into a cleaner architecture that's more maintainable going forward. RAMHT and MM bits of the new core have been left out for the moment, and will be pulled in as I go through the process of porting the code to become either subdev or engine modules. There are several main goals I wanted to achieve through this work: -- Reduce complexity The goal here was to make each component of the driver as independent as possible, which will ease maintainability and readability, and provide a good base for resetting locked up GPU units in the future. -- Better tracking of GPU units that are required at any given time This is for future PM work, we'll be able to tell exactly what parts of the GPU we need powered at any given point (etc). -- Expose all available NVIDIA GPUs to the client In order to support things such as multi-GPU channels, we want to be able to expose all the NVIDIA GPUs to the client over a single file descriptor so it can send a single push buffer to multiple GPUs. -- Untangle the core hardware support code from the DRM implementation This happened initially as an unexpected side-effect of developing the initial core infrastructure in userspace, but it turned into a goal of the whole project. Initial benefits will be the availablility of a number of userspace tools and tests using the same code as the driver itself, but will also be important as I look into some virtualisation ideas. v2: Ben Skeggs <bskeggs@redhat.com> - fix duplicate assignments noticed by clang - implement some forgotten yelling in error path - ensure 64-bit engine mask is used everywhere v3: Marcin Slusarz <marcin.slusarz@gmail.com> - sparse fixes - inline nv_printk into nv_assert to prevent recursive inlining issues v4: Ben Skeggs <bskeggs@redhat.com> - fixed minor memory leak on gpuobj destruction Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-07-05 21:36:43 +00:00
#ifndef __NOUVEAU_OS_H__
#define __NOUVEAU_OS_H__
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/mutex.h>
#include <linux/pci.h>
#include <linux/printk.h>
#include <linux/bitops.h>
#include <linux/firmware.h>
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include <linux/delay.h>
#include <linux/io-mapping.h>
#include <linux/vmalloc.h>
#include <linux/acpi.h>
#include <asm/unaligned.h>
drm/nouveau/bios: pull in basic vbios subdev, more to come later v2: Ben Skeggs <bskeggs@redhat.com> - use unaligned macros to access vbios image - endianness fixes Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-07-10 00:49:22 +00:00
#include <asm/unaligned.h>
drm/nouveau/core: pull in most of the new core infrastructure This commit provides most of the infrastructure to support a major overhaul of Nouveau's internals coming in the following commits. This work aims to take all the things we've learned over the last several years, and turn that into a cleaner architecture that's more maintainable going forward. RAMHT and MM bits of the new core have been left out for the moment, and will be pulled in as I go through the process of porting the code to become either subdev or engine modules. There are several main goals I wanted to achieve through this work: -- Reduce complexity The goal here was to make each component of the driver as independent as possible, which will ease maintainability and readability, and provide a good base for resetting locked up GPU units in the future. -- Better tracking of GPU units that are required at any given time This is for future PM work, we'll be able to tell exactly what parts of the GPU we need powered at any given point (etc). -- Expose all available NVIDIA GPUs to the client In order to support things such as multi-GPU channels, we want to be able to expose all the NVIDIA GPUs to the client over a single file descriptor so it can send a single push buffer to multiple GPUs. -- Untangle the core hardware support code from the DRM implementation This happened initially as an unexpected side-effect of developing the initial core infrastructure in userspace, but it turned into a goal of the whole project. Initial benefits will be the availablility of a number of userspace tools and tests using the same code as the driver itself, but will also be important as I look into some virtualisation ideas. v2: Ben Skeggs <bskeggs@redhat.com> - fix duplicate assignments noticed by clang - implement some forgotten yelling in error path - ensure 64-bit engine mask is used everywhere v3: Marcin Slusarz <marcin.slusarz@gmail.com> - sparse fixes - inline nv_printk into nv_assert to prevent recursive inlining issues v4: Ben Skeggs <bskeggs@redhat.com> - fixed minor memory leak on gpuobj destruction Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2012-07-05 21:36:43 +00:00
static inline int
ffsll(u64 mask)
{
int i;
for (i = 0; i < 64; i++) {
if (mask & (1ULL << i))
return i + 1;
}
return 0;
}
#ifndef ioread32_native
#ifdef __BIG_ENDIAN
#define ioread16_native ioread16be
#define iowrite16_native iowrite16be
#define ioread32_native ioread32be
#define iowrite32_native iowrite32be
#else /* def __BIG_ENDIAN */
#define ioread16_native ioread16
#define iowrite16_native iowrite16
#define ioread32_native ioread32
#define iowrite32_native iowrite32
#endif /* def __BIG_ENDIAN else */
#endif /* !ioread32_native */
#endif
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