diff options
| -rw-r--r-- | drivers/gpu/drm/radeon/Makefile | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon.h | 7 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_acpi.c | 67 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_kms.c | 8 |
4 files changed, 82 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/Makefile b/drivers/gpu/drm/radeon/Makefile index 84b1f2729d4..aebe0087504 100644 --- a/drivers/gpu/drm/radeon/Makefile +++ b/drivers/gpu/drm/radeon/Makefile @@ -69,5 +69,6 @@ radeon-y += radeon_device.o radeon_asic.o radeon_kms.o \ radeon-$(CONFIG_COMPAT) += radeon_ioc32.o radeon-$(CONFIG_VGA_SWITCHEROO) += radeon_atpx_handler.o +radeon-$(CONFIG_ACPI) += radeon_acpi.o obj-$(CONFIG_DRM_RADEON)+= radeon.o diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index ab61aaa887b..a5c1a3e9dd3 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -1414,6 +1414,13 @@ extern void r700_cp_fini(struct radeon_device *rdev); extern void evergreen_disable_interrupt_state(struct radeon_device *rdev); extern int evergreen_irq_set(struct radeon_device *rdev); +/* radeon_acpi.c */ +#if defined(CONFIG_ACPI) +extern int radeon_acpi_init(struct radeon_device *rdev); +#else +static inline int radeon_acpi_init(struct radeon_device *rdev) { return 0; } +#endif + /* evergreen */ struct evergreen_mc_save { u32 vga_control[6]; diff --git a/drivers/gpu/drm/radeon/radeon_acpi.c b/drivers/gpu/drm/radeon/radeon_acpi.c new file mode 100644 index 00000000000..e366434035c --- /dev/null +++ b/drivers/gpu/drm/radeon/radeon_acpi.c @@ -0,0 +1,67 @@ +#include <linux/pci.h> +#include <linux/acpi.h> +#include <linux/slab.h> +#include <acpi/acpi_drivers.h> +#include <acpi/acpi_bus.h> + +#include "drmP.h" +#include "drm.h" +#include "drm_sarea.h" +#include "drm_crtc_helper.h" +#include "radeon.h" + +#include <linux/vga_switcheroo.h> + +/* Call the ATIF method + * + * Note: currently we discard the output + */ +static int radeon_atif_call(acpi_handle handle) +{ + acpi_status status; + union acpi_object atif_arg_elements[2]; + struct acpi_object_list atif_arg; + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL}; + + atif_arg.count = 2; + atif_arg.pointer = &atif_arg_elements[0]; + + atif_arg_elements[0].type = ACPI_TYPE_INTEGER; + atif_arg_elements[0].integer.value = 0; + atif_arg_elements[1].type = ACPI_TYPE_INTEGER; + atif_arg_elements[1].integer.value = 0; + + status = acpi_evaluate_object(handle, "ATIF", &atif_arg, &buffer); + + /* Fail only if calling the method fails and ATIF is supported */ + if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { + printk(KERN_INFO "failed to evaluate ATIF got %s\n", acpi_format_exception(status)); + kfree(buffer.pointer); + return 1; + } + + kfree(buffer.pointer); + return 0; +} + +/* Call all ACPI methods here */ +int radeon_acpi_init(struct radeon_device *rdev) +{ + acpi_handle handle; + int ret; + + /* No need to proceed if we're sure that ATIF is not supported */ + if (!ASIC_IS_AVIVO(rdev) || !rdev->bios) + return 0; + + /* Get the device handle */ + handle = DEVICE_ACPI_HANDLE(&rdev->pdev->dev); + + /* Call the ATIF method */ + ret = radeon_atif_call(handle); + if (ret) + return ret; + + return 0; +} + diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c index 6a70c0dc7f9..70fda6361cd 100644 --- a/drivers/gpu/drm/radeon/radeon_kms.c +++ b/drivers/gpu/drm/radeon/radeon_kms.c @@ -49,7 +49,7 @@ int radeon_driver_unload_kms(struct drm_device *dev) int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags) { struct radeon_device *rdev; - int r; + int r, acpi_status; rdev = kzalloc(sizeof(struct radeon_device), GFP_KERNEL); if (rdev == NULL) { @@ -77,6 +77,12 @@ int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags) dev_err(&dev->pdev->dev, "Fatal error during GPU init\n"); goto out; } + + /* Call ACPI methods */ + acpi_status = radeon_acpi_init(rdev); + if (acpi_status) + dev_err(&dev->pdev->dev, "Error during ACPI methods call\n"); + /* Again modeset_init should fail only on fatal error * otherwise it should provide enough functionalities * for shadowfb to run |