Commit 14adc892 authored by Christian König's avatar Christian König Committed by Alex Deucher

drm/radeon: Deprecate UMS support v2

KMS support is out and stable for a couple of years now and
the userspace code has deprecated or abandoned the old UMS interface.

So make the KMS interface the default and deprecate the UMS interface
in the kernel as well.

v2: rebased on alex/drm-next-3.9-wip
Signed-off-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 0fcb6155
......@@ -96,6 +96,7 @@ config DRM_RADEON
select DRM_TTM
select POWER_SUPPLY
select HWMON
select BACKLIGHT_CLASS_DEVICE
help
Choose this option if you have an ATI Radeon graphics card. There
are both PCI and AGP versions. You don't need to choose this to
......
config DRM_RADEON_KMS
bool "Enable modesetting on radeon by default - NEW DRIVER"
config DRM_RADEON_UMS
bool "Enable userspace modesetting on radeon (DEPRECATED)"
depends on DRM_RADEON
select BACKLIGHT_CLASS_DEVICE
help
Choose this option if you want kernel modesetting enabled by default.
Choose this option if you still need userspace modesetting.
This is a completely new driver. It's only part of the existing drm
for compatibility reasons. It requires an entirely different graphics
stack above it and works very differently from the old drm stack.
i.e. don't enable this unless you know what you are doing it may
cause issues or bugs compared to the previous userspace driver stack.
When kernel modesetting is enabled the IOCTL of radeon/drm
driver are considered as invalid and an error message is printed
in the log and they return failure.
KMS enabled userspace will use new API to talk with the radeon/drm
driver. The new API provide functions to create/destroy/share/mmap
buffer object which are then managed by the kernel memory manager
(here TTM). In order to submit command to the GPU the userspace
provide a buffer holding the command stream, along this buffer
userspace have to provide a list of buffer object used by the
command stream. The kernel radeon driver will then place buffer
in GPU accessible memory and will update command stream to reflect
the position of the different buffers.
The kernel will also perform security check on command stream
provided by the user, we want to catch and forbid any illegal use
of the GPU such as DMA into random system memory or into memory
not owned by the process supplying the command stream.
Userspace modesetting is deprecated for quite some time now, so
enable this only if you have ancient versions of the DDX drivers.
......@@ -56,8 +56,12 @@ $(obj)/r600_cs.o: $(obj)/r600_reg_safe.h
$(obj)/evergreen_cs.o: $(obj)/evergreen_reg_safe.h $(obj)/cayman_reg_safe.h
radeon-y := radeon_drv.o radeon_cp.o radeon_state.o radeon_mem.o \
radeon_irq.o r300_cmdbuf.o r600_cp.o
radeon-y := radeon_drv.o
# add UMS driver
radeon-$(CONFIG_DRM_RADEON_UMS)+= radeon_cp.o radeon_state.o radeon_mem.o \
radeon_irq.o r300_cmdbuf.o r600_cp.o r600_blit.o
# add KMS driver
radeon-y += radeon_device.o radeon_asic.o radeon_kms.o \
radeon_atombios.o radeon_agp.o atombios_crtc.o radeon_combios.o \
......@@ -67,7 +71,7 @@ radeon-y += radeon_device.o radeon_asic.o radeon_kms.o \
radeon_clocks.o radeon_fb.o radeon_gem.o radeon_ring.o radeon_irq_kms.o \
radeon_cs.o radeon_bios.o radeon_benchmark.o r100.o r300.o r420.o \
rs400.o rs600.o rs690.o rv515.o r520.o r600.o rv770.o radeon_test.o \
r200.o radeon_legacy_tv.o r600_cs.o r600_blit.o r600_blit_shaders.o \
r200.o radeon_legacy_tv.o r600_cs.o r600_blit_shaders.o \
r600_blit_kms.o radeon_pm.o atombios_dp.o r600_audio.o r600_hdmi.o \
evergreen.o evergreen_cs.o evergreen_blit_shaders.o evergreen_blit_kms.o \
evergreen_hdmi.o radeon_trace_points.o ni.o cayman_blit_shaders.o \
......
......@@ -29,6 +29,8 @@
*
* Authors:
* Nicolai Haehnle <prefect_@gmx.net>
*
* ------------------------ This file is DEPRECATED! -------------------------
*/
#include <drm/drmP.h>
......
......@@ -22,6 +22,8 @@
*
* Authors:
* Alex Deucher <alexander.deucher@amd.com>
*
* ------------------------ This file is DEPRECATED! -------------------------
*/
#include <drm/drmP.h>
#include <drm/radeon_drm.h>
......@@ -488,37 +490,6 @@ set_default_state(drm_radeon_private_t *dev_priv)
ADVANCE_RING();
}
/* 23 bits of float fractional data */
#define I2F_FRAC_BITS 23
#define I2F_MASK ((1 << I2F_FRAC_BITS) - 1)
/*
* Converts unsigned integer into 32-bit IEEE floating point representation.
* Will be exact from 0 to 2^24. Above that, we round towards zero
* as the fractional bits will not fit in a float. (It would be better to
* round towards even as the fpu does, but that is slower.)
*/
__pure uint32_t int2float(uint32_t x)
{
uint32_t msb, exponent, fraction;
/* Zero is special */
if (!x) return 0;
/* Get location of the most significant bit */
msb = __fls(x);
/*
* Use a rotate instead of a shift because that works both leftwards
* and rightwards due to the mod(32) behaviour. This means we don't
* need to check to see if we are above 2^24 or not.
*/
fraction = ror32(x, (msb - I2F_FRAC_BITS) & 0x1f) & I2F_MASK;
exponent = (127 + msb) << I2F_FRAC_BITS;
return fraction + exponent;
}
static int r600_nomm_get_vb(struct drm_device *dev)
{
drm_radeon_private_t *dev_priv = dev->dev_private;
......
......@@ -31,6 +31,37 @@
#include "r600_blit_shaders.h"
#include "radeon_blit_common.h"
/* 23 bits of float fractional data */
#define I2F_FRAC_BITS 23
#define I2F_MASK ((1 << I2F_FRAC_BITS) - 1)
/*
* Converts unsigned integer into 32-bit IEEE floating point representation.
* Will be exact from 0 to 2^24. Above that, we round towards zero
* as the fractional bits will not fit in a float. (It would be better to
* round towards even as the fpu does, but that is slower.)
*/
__pure uint32_t int2float(uint32_t x)
{
uint32_t msb, exponent, fraction;
/* Zero is special */
if (!x) return 0;
/* Get location of the most significant bit */
msb = __fls(x);
/*
* Use a rotate instead of a shift because that works both leftwards
* and rightwards due to the mod(32) behaviour. This means we don't
* need to check to see if we are above 2^24 or not.
*/
fraction = ror32(x, (msb - I2F_FRAC_BITS) & 0x1f) & I2F_MASK;
exponent = (127 + msb) << I2F_FRAC_BITS;
return fraction + exponent;
}
/* emits 21 on rv770+, 23 on r600 */
static void
set_render_target(struct radeon_device *rdev, int format,
......
......@@ -24,6 +24,8 @@
* Authors:
* Dave Airlie <airlied@redhat.com>
* Alex Deucher <alexander.deucher@amd.com>
*
* ------------------------ This file is DEPRECATED! -------------------------
*/
#include <linux/module.h>
......
......@@ -2313,17 +2313,7 @@ int r600_cs_parse(struct radeon_cs_parser *p)
return 0;
}
static int r600_cs_parser_relocs_legacy(struct radeon_cs_parser *p)
{
if (p->chunk_relocs_idx == -1) {
return 0;
}
p->relocs = kzalloc(sizeof(struct radeon_cs_reloc), GFP_KERNEL);
if (p->relocs == NULL) {
return -ENOMEM;
}
return 0;
}
#ifdef CONFIG_DRM_RADEON_UMS
/**
* cs_parser_fini() - clean parser states
......@@ -2349,6 +2339,18 @@ static void r600_cs_parser_fini(struct radeon_cs_parser *parser, int error)
kfree(parser->chunks_array);
}
static int r600_cs_parser_relocs_legacy(struct radeon_cs_parser *p)
{
if (p->chunk_relocs_idx == -1) {
return 0;
}
p->relocs = kzalloc(sizeof(struct radeon_cs_reloc), GFP_KERNEL);
if (p->relocs == NULL) {
return -ENOMEM;
}
return 0;
}
int r600_cs_legacy(struct drm_device *dev, void *data, struct drm_file *filp,
unsigned family, u32 *ib, int *l)
{
......@@ -2410,6 +2412,8 @@ void r600_cs_legacy_init(void)
r600_nomm = 1;
}
#endif
/*
* DMA
*/
......
......@@ -27,6 +27,8 @@
* Authors:
* Kevin E. Martin <martin@valinux.com>
* Gareth Hughes <gareth@valinux.com>
*
* ------------------------ This file is DEPRECATED! -------------------------
*/
#include <linux/module.h>
......
......@@ -123,15 +123,25 @@ struct dma_buf *radeon_gem_prime_export(struct drm_device *dev,
int flags);
struct drm_gem_object *radeon_gem_prime_import(struct drm_device *dev,
struct dma_buf *dma_buf);
extern long radeon_kms_compat_ioctl(struct file *filp, unsigned int cmd,
unsigned long arg);
#if defined(CONFIG_DEBUG_FS)
int radeon_debugfs_init(struct drm_minor *minor);
void radeon_debugfs_cleanup(struct drm_minor *minor);
#endif
/* atpx handler */
#if defined(CONFIG_VGA_SWITCHEROO)
void radeon_register_atpx_handler(void);
void radeon_unregister_atpx_handler(void);
#else
static inline void radeon_register_atpx_handler(void) {}
static inline void radeon_unregister_atpx_handler(void) {}
#endif
int radeon_no_wb;
int radeon_modeset = -1;
int radeon_modeset = 1;
int radeon_dynclks = -1;
int radeon_r4xx_atom = 0;
int radeon_agpmode = 0;
......@@ -199,6 +209,14 @@ module_param_named(msi, radeon_msi, int, 0444);
MODULE_PARM_DESC(lockup_timeout, "GPU lockup timeout in ms (defaul 10000 = 10 seconds, 0 = disable)");
module_param_named(lockup_timeout, radeon_lockup_timeout, int, 0444);
static struct pci_device_id pciidlist[] = {
radeon_PCI_IDS
};
MODULE_DEVICE_TABLE(pci, pciidlist);
#ifdef CONFIG_DRM_RADEON_UMS
static int radeon_suspend(struct drm_device *dev, pm_message_t state)
{
drm_radeon_private_t *dev_priv = dev->dev_private;
......@@ -227,14 +245,6 @@ static int radeon_resume(struct drm_device *dev)
return 0;
}
static struct pci_device_id pciidlist[] = {
radeon_PCI_IDS
};
#if defined(CONFIG_DRM_RADEON_KMS)
MODULE_DEVICE_TABLE(pci, pciidlist);
#endif
static const struct file_operations radeon_driver_old_fops = {
.owner = THIS_MODULE,
.open = drm_open,
......@@ -284,6 +294,8 @@ static struct drm_driver driver_old = {
.patchlevel = DRIVER_PATCHLEVEL,
};
#endif
static struct drm_driver kms_driver;
static int radeon_kick_out_firmware_fb(struct pci_dev *pdev)
......@@ -411,10 +423,12 @@ static struct drm_driver kms_driver = {
static struct drm_driver *driver;
static struct pci_driver *pdriver;
#ifdef CONFIG_DRM_RADEON_UMS
static struct pci_driver radeon_pci_driver = {
.name = DRIVER_NAME,
.id_table = pciidlist,
};
#endif
static struct pci_driver radeon_kms_pci_driver = {
.name = DRIVER_NAME,
......@@ -427,28 +441,6 @@ static struct pci_driver radeon_kms_pci_driver = {
static int __init radeon_init(void)
{
driver = &driver_old;
pdriver = &radeon_pci_driver;
driver->num_ioctls = radeon_max_ioctl;
#ifdef CONFIG_VGA_CONSOLE
if (vgacon_text_force() && radeon_modeset == -1) {
DRM_INFO("VGACON disable radeon kernel modesetting.\n");
driver = &driver_old;
pdriver = &radeon_pci_driver;
driver->driver_features &= ~DRIVER_MODESET;
radeon_modeset = 0;
}
#endif
/* if enabled by default */
if (radeon_modeset == -1) {
#ifdef CONFIG_DRM_RADEON_KMS
DRM_INFO("radeon defaulting to kernel modesetting.\n");
radeon_modeset = 1;
#else
DRM_INFO("radeon defaulting to userspace modesetting.\n");
radeon_modeset = 0;
#endif
}
if (radeon_modeset == 1) {
DRM_INFO("radeon kernel modesetting enabled.\n");
driver = &kms_driver;
......@@ -456,9 +448,21 @@ static int __init radeon_init(void)
driver->driver_features |= DRIVER_MODESET;
driver->num_ioctls = radeon_max_kms_ioctl;
radeon_register_atpx_handler();
} else {
#ifdef CONFIG_DRM_RADEON_UMS
DRM_INFO("radeon userspace modesetting enabled.\n");
driver = &driver_old;
pdriver = &radeon_pci_driver;
driver->driver_features &= ~DRIVER_MODESET;
driver->num_ioctls = radeon_max_ioctl;
#else
DRM_ERROR("No UMS support in radeon module!\n");
return -EINVAL;
#endif
}
/* if the vga console setting is enabled still
* let modprobe override it */
/* let modprobe override vga console setting */
return drm_pci_init(driver, pdriver);
}
......
......@@ -113,6 +113,9 @@
#define DRIVER_MINOR 33
#define DRIVER_PATCHLEVEL 0
/* The rest of the file is DEPRECATED! */
#ifdef CONFIG_DRM_RADEON_UMS
enum radeon_cp_microcode_version {
UCODE_R100,
UCODE_R200,
......@@ -418,8 +421,6 @@ extern int radeon_driver_open(struct drm_device *dev,
struct drm_file *file_priv);
extern long radeon_compat_ioctl(struct file *filp, unsigned int cmd,
unsigned long arg);
extern long radeon_kms_compat_ioctl(struct file *filp, unsigned int cmd,
unsigned long arg);
extern int radeon_master_create(struct drm_device *dev, struct drm_master *master);
extern void radeon_master_destroy(struct drm_device *dev, struct drm_master *master);
......@@ -462,15 +463,6 @@ extern void r600_blit_swap(struct drm_device *dev,
int sx, int sy, int dx, int dy,
int w, int h, int src_pitch, int dst_pitch, int cpp);
/* atpx handler */
#if defined(CONFIG_VGA_SWITCHEROO)
void radeon_register_atpx_handler(void);
void radeon_unregister_atpx_handler(void);
#else
static inline void radeon_register_atpx_handler(void) {}
static inline void radeon_unregister_atpx_handler(void) {}
#endif
/* Flags for stats.boxes
*/
#define RADEON_BOX_DMA_IDLE 0x1
......@@ -2167,4 +2159,6 @@ extern void radeon_commit_ring(drm_radeon_private_t *dev_priv);
} while (0)
#endif /* CONFIG_DRM_RADEON_UMS */
#endif /* __RADEON_DRV_H__ */
......@@ -28,6 +28,8 @@
* Authors:
* Keith Whitwell <keith@tungstengraphics.com>
* Michel D�zer <michel@daenzer.net>
*
* ------------------------ This file is DEPRECATED! -------------------------
*/
#include <drm/drmP.h>
......
......@@ -27,6 +27,8 @@
*
* Authors:
* Keith Whitwell <keith@tungstengraphics.com>
*
* ------------------------ This file is DEPRECATED! -------------------------
*/
#include <drm/drmP.h>
......
......@@ -25,6 +25,8 @@
* Authors:
* Gareth Hughes <gareth@valinux.com>
* Kevin E. Martin <martin@valinux.com>
*
* ------------------------ This file is DEPRECATED! -------------------------
*/
#include <drm/drmP.h>
......
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