litmus-rt-ext-res.git - LITMUS^RT with extended reservations for Forbidden Zones paper @ RTAS'20

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author	Eric Anholt <eric@anholt.net>	2018-11-26 16:59:28 -0500
committer	Eric Anholt <eric@anholt.net>	2018-11-27 15:23:32 -0500
commit	08f73d668048ffa3ba6b1426b6ba0a89b16aefd7 (patch)
tree	74991749982507aeff45de15539ea2111e3d72a9 /drivers/gpu/drm/mga/mga_warp.c
parent	8f1cd826641d677d0f7494253ecfc3335f0bcd4e (diff)

drm/vkms: Drop custom vkms_dumb_map().

This is the same as the default drm_gem_dumb_map_offset() implementation, except that this one missed the ban on userspace mapping an imported dmabuf (which seems like intended common behavior for drivers). Signed-off-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/20181126215929.20546-1-eric@anholt.net Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>

Diffstat (limited to 'drivers/gpu/drm/mga/mga_warp.c')

0 files changed, 0 insertions, 0 deletions

/* * HP i8042 System Device Controller -- header * * Copyright (c) 2001 Brian S. Julin * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions, and the following disclaimer, * without modification. * 2. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * Alternatively, this software may be distributed under the terms of the * GNU General Public License ("GPL"). * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * * References: * * HP-HIL Technical Reference Manual. Hewlett Packard Product No. 45918A * * System Device Controller Microprocessor Firmware Theory of Operation * for Part Number 1820-4784 Revision B. Dwg No. A-1820-4784-2 * */ #ifndef _LINUX_HP_SDC_H #define _LINUX_HP_SDC_H #include <linux/interrupt.h> #include <linux/types.h> #include <linux/time.h> #include <linux/timer.h> #if defined(__hppa__) #include <asm/hardware.h> #endif /* No 4X status reads take longer than this (in usec). */ #define HP_SDC_MAX_REG_DELAY 20000 typedef void (hp_sdc_irqhook) (int irq, void *dev_id, uint8_t status, uint8_t data); int hp_sdc_request_timer_irq(hp_sdc_irqhook *callback); int hp_sdc_request_hil_irq(hp_sdc_irqhook *callback); int hp_sdc_request_cooked_irq(hp_sdc_irqhook *callback); int hp_sdc_release_timer_irq(hp_sdc_irqhook *callback); int hp_sdc_release_hil_irq(hp_sdc_irqhook *callback); int hp_sdc_release_cooked_irq(hp_sdc_irqhook *callback); typedef struct { int actidx; /* Start of act. Acts are atomic WRT I/O to SDC */ int idx; /* Index within the act */ int endidx; /* transaction is over and done if idx == endidx */ uint8_t *seq; /* commands/data for the transaction */ union { hp_sdc_irqhook *irqhook; /* Callback, isr or tasklet context */ struct semaphore *semaphore; /* Semaphore to sleep on. */ } act; } hp_sdc_transaction; int __hp_sdc_enqueue_transaction(hp_sdc_transaction *this); int hp_sdc_enqueue_transaction(hp_sdc_transaction *this); int hp_sdc_dequeue_transaction(hp_sdc_transaction *this); /* The HP_SDC_ACT* values are peculiar to this driver. * Nuance: never HP_SDC_ACT_DATAIN | HP_SDC_ACT_DEALLOC, use another * act to perform the dealloc. */ #define HP_SDC_ACT_PRECMD 0x01 /* Send a command first */ #define HP_SDC_ACT_DATAREG 0x02 /* Set data registers */ #define HP_SDC_ACT_DATAOUT 0x04 /* Send data bytes */ #define HP_SDC_ACT_POSTCMD 0x08 /* Send command after */ #define HP_SDC_ACT_DATAIN 0x10 /* Collect data after */ #define HP_SDC_ACT_DURING 0x1f #define HP_SDC_ACT_SEMAPHORE 0x20 /* Raise semaphore after */ #define HP_SDC_ACT_CALLBACK 0x40 /* Pass data to IRQ handler */ #define HP_SDC_ACT_DEALLOC 0x80 /* Destroy transaction after */ #define HP_SDC_ACT_AFTER 0xe0 #define HP_SDC_ACT_DEAD 0x60 /* Act timed out. */ /* Rest of the flags are straightforward representation of the SDC interface */ #define HP_SDC_STATUS_IBF 0x02 /* Input buffer full */ #define HP_SDC_STATUS_IRQMASK 0xf0 /* Bits containing "level 1" irq */ #define HP_SDC_STATUS_PERIODIC 0x10 /* Periodic 10ms timer */ #define HP_SDC_STATUS_USERTIMER 0x20 /* "Special purpose" timer */ #define HP_SDC_STATUS_TIMER 0x30 /* Both PERIODIC and USERTIMER */ #define HP_SDC_STATUS_REG 0x40 /* Data from an i8042 register */ #define HP_SDC_STATUS_HILCMD 0x50 /* Command from HIL MLC */ #define HP_SDC_STATUS_HILDATA 0x60 /* Data from HIL MLC */ #define HP_SDC_STATUS_PUP 0x70 /* Successful power-up self test */ #define HP_SDC_STATUS_KCOOKED 0x80 /* Key from cooked kbd */ #define HP_SDC_STATUS_KRPG 0xc0 /* Key from Repeat Gen */ #define HP_SDC_STATUS_KMOD_SUP 0x10 /* Shift key is up */ #define HP_SDC_STATUS_KMOD_CUP 0x20 /* Control key is up */ #define HP_SDC_NMISTATUS_FHS 0x40 /* NMI is a fast handshake irq */ /* Internal i8042 registers (there are more, but they are not too useful). */


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