cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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pxa3xx-gcu.h (929B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef __PXA3XX_GCU_H__
      3#define __PXA3XX_GCU_H__
      4
      5#include <linux/types.h>
      6
      7/* Number of 32bit words in display list (ring buffer). */
      8#define PXA3XX_GCU_BUFFER_WORDS  ((256 * 1024 - 256) / 4)
      9
     10/* To be increased when breaking the ABI */
     11#define PXA3XX_GCU_SHARED_MAGIC  0x30000001
     12
     13#define PXA3XX_GCU_BATCH_WORDS   8192
     14
     15struct pxa3xx_gcu_shared {
     16	u32            buffer[PXA3XX_GCU_BUFFER_WORDS];
     17
     18	bool           hw_running;
     19
     20	unsigned long  buffer_phys;
     21
     22	unsigned int   num_words;
     23	unsigned int   num_writes;
     24	unsigned int   num_done;
     25	unsigned int   num_interrupts;
     26	unsigned int   num_wait_idle;
     27	unsigned int   num_wait_free;
     28	unsigned int   num_idle;
     29
     30	u32            magic;
     31};
     32
     33/* Initialization and synchronization.
     34 * Hardware is started upon write(). */
     35#define PXA3XX_GCU_IOCTL_RESET		_IO('G', 0)
     36#define PXA3XX_GCU_IOCTL_WAIT_IDLE	_IO('G', 2)
     37
     38#endif /* __PXA3XX_GCU_H__ */
     39